HomeMy WebLinkAboutEX_07_D_HEX__Decision_TA_Benson_Petro_202303141
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SITE PLAN and STREET AND PARKING MODS- 1
CAO VARIANCE - 1
BEFORE THE HEARING EXAMINER FOR THE CITY OF RENTON
RE: TA Benson Petro
Site Plan and Street and Parking
Modifications
LUA22-000424
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FINDINGS OF FACT,
CONCLUSIONS OF LAW AND
FINAL DECISION
Summary
TA Benson Petro, LLC requests site plan and street and parking modification approval for the
construction of a new 4,088 sq. ft. convenience store, a 2,900 sq. ft. gas station canopy, and a 2,850
sq. ft. bank to be located at 17426 Benson Dr SE, 10828 & 10810 SE Petrovitsky Rd. The
applications are approved subject to conditions.
Testimony
Jill Ding, Senior City of Renton Planner, summarized the staff report.
In response to Examiner questions, Mike Seppo with Renton Engineering noted that access is right
in, right out. There is coordination occurring between WSDOT and the City on Benson Drive
access because that road is within WSDOT jurisdiction. The Applicant will be conducting an
intersection control evaluation that will be reviewed by WSDOT and the City to devise safe turning
movements within the intersection and within the site.
Ms. Ding responded to the remaining questions of the Examiner. The lot line adjustment is being
delayed because it’s a separate decision and has to be recorded. The street modification and
parking modification are consolidated into the site plan review. The staff recommended
EXHIBIT 7
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SITE PLAN and STREET AND PARKING MODS- 2
CAO VARIANCE - 2
landscaping and setback corrections will not significantly change the site plan. The final number of
parking spaces will be known during construction permit review. With retention of the trees and
revised landscaping, there likely will be just a couple parking spaces eliminated.
Michelle Woodward, Applicant representative, noted that she was happy with how staff treated the
parking issue.
No one else testified.
Exhibits
Exhibits 1-29 as presented in the staff prepared document entitled “Exhibits” during the February 28,
2023 hearing were admitted into the record.
FINDINGS OF FACT
Procedural:
1. Applicant. TA Benson Petro, LLC, 2600 Dallas Parkway, Suite, 370, Frisco, TX 75034.
2. Hearing. A virtual hearing was held on the applications on February 28, 2023 at 11 am in the
City of Renton Council chambers, Zoom Meeting ID No. 946 7233 4580.
3. Project Description. TA Benson Petro, LLC requests site plan and street and parking
modification approval for the construction of a new 4,088 sq. ft. convenience store, a 2,900 sq. ft. gas
station canopy, and a 2,850 sq. ft. bank to be located at 17426 Benson Dr SE, 10828 & 10810 SE
Petrovitsky Rd.
The project site is comprised of three (3) parcels totaling approximately 72,980 sq. ft. (1.68 acres).
Access to the site is proposed via one curb cut off of Benson Dr. SE/108th Ave SE and one curb cut
off of SE Petrovitsky Rd. Surface parking is proposed for 44 parking spaces. A street standards
modification was requested to vary from the code required frontage improvements and instead comply
with alternative plans that have been adopted by the Transportation Division for the Benson/108th and
Petrovitsky frontages. The Applicant is requesting a modification from RMC 4-4-080 in order to
exceed the maximum number of 24 permitted parking spaces to 44 spaces.
4. Adequacy of Infrastructure/Public Services. The project will be served by adequate and
appropriate infrastructure and public services. Infrastructure and services are more directly addressed
as follows:
A. Water and Sewer Service. Water and sewer service will be provided by the Soos Cree Water
and Sewer District.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SITE PLAN and STREET AND PARKING MODS- 3
CAO VARIANCE - 3
B. Fire and Police. The City of Renton will provide police service and the Renton Regional Fire
Authority will provide fire service. Police and Fire Prevention staff indicated that sufficient
resources exist to furnish services to the proposed development with the improvements and fire
impact fees required of the project.
C. Drainage. The proposal provides for adequate and appropriate drainage facilities since its
proposed stormwater controls have been found by City staff to conform to the City’s
stormwater regulations.
A Preliminary Technical Information Report (TIR) prepared by Contour Engineering, LLC,
dated August 2022 was submitted with the land use application materials. The project would be
subject to the 2022 City of Renton Surface Water Design Manual (RSWDM). Based on the
City’s flow control map, the site falls within the Flow Control Duration Standard area matching
Forested Site Conditions, which requires that off-site flows match forested, pre-developed
conditions. Existing surface water runoff is collected and conveyed via catch basins to an
existing underground storm drainage system, that collects and conveys stormwater runoff from
the existing buildings and parking lot off-site to the south, to the storm system in SE
Petrovitsky RD. From there, it travels north along Benson DR S, and then along SE 174th
Street. There is no existing on-site detention system.
To comply with the flow control requirements of the RSWDM, stormwater runoff would be
tightlined to or collected by onsite catch basins, which would direct the water to an
underground detention vault. Stormwater discharged from the vault would be routed through a
water quality device and pump system before being discharged off site into the public
stormwater system in Benson Dr. S.
The development is subject to a system development charge (SDC) for stormwater. The 2023
SDC for stormwater is $0.92 per square foot of new impervious surface area, but not less than
$2,300.00. The fee that is current would be assessed and charged at the time of construction
permit issuance.
D. Parks/Open Space. The project is not residential in nature so no park impact fees or open space
requirements apply to the proposal except for a public plaza required by design regulations.
The project will not displace existing recreational uses. The Applicant proposes a public plaza
as required at the intersection of SE Petrovitsky Rd and Benson Dr S.
E. Transportation and Circulation. The proposal is served by adequate and appropriate
transportation facilities.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SITE PLAN and STREET AND PARKING MODS- 4
CAO VARIANCE - 4
The proposed development site has frontage on SE Petrovitsky Road (176th St SE) and on
Benson Dr. S (108th Ave SE / SR 515). Frontage improvements are required along both street
frontages. Access to the site will be limited to right-in right out on both SE Petrovitsky and
108th Ave SE/Benson Dr S.
A Traffic Impact Analysis (TIA), dated October 4, 2022, prepared by Transportation
Engineering Northwest (Exhibit 12) was included with the project application materials.
According to the TIA, the proposed project is estimated to generate 1,085 net new weekday
daily trips, with 71 net new trips occurring during the weekday AM peak hour (37 entering, 34
exiting), and 104 net new trips occurring during the weekday PM peak hour (52 entering, 52
exiting).
The TIA also included level of service (LOS) analyses for future year 2024 weekday AM and
PM peak hour conditions at four (4) signalized off-site study intersections (106th Pl SE and SE
Carr Rd, Benson Dr S and Benson Rd S, Benson Dr S and SE Petrovitsky Rd, and 108th Ave
SE and SE 180th St). All study intersections are expected to operate at a LOS E or better,
which according to City traffic staff is an acceptable level, during the weekday AM and PM
peak hours in 2024 without or with the proposed project.
Transportation Concurrency (Exhibit 26) was completed for the proposed project, The
proposed project passes the City of Renton Traffic Concurrency Test per RMC 4-6-070.D.
A Transportation Impact Fee, for a combination convenience store and gas station would be
applicable to the proposal. For informational purposes, the 2023 fee is based on a rate of
$157.10 per square foot of drive-in bank and $73,411.90 per pump. This fee will likely change
in subsequent years and will be assessed and paid at time of building permit issuance.
The proposal would provide for desirable, safe and efficient linkages and transitions between
pedestrian and vehicular transportation facilities by providing pedestrian connections between
the primary building entrance and the public sidewalk within the public right-of-way. In
addition, pedestrian walkways are proposed around the buildings with connections to the
surface parking lot, providing safe and efficient access for pedestrians. Vehicular access to the
site is proposed via one curb cut off of Benson Dr. S and one curb cut off of SE Petrovitsky Rd,
which would minimize the vehicular access to and from the site and provide fewer
interruptions to the public sidewalk.
WSDOT expressed concern over some traffic mitigation that affects SR 515. The City testified
that the City is currently coordinating the mitigation with WSDOT through an intersection
control evaluation process.
The project site has no designated loading and delivery areas.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SITE PLAN and STREET AND PARKING MODS- 5
CAO VARIANCE - 5
F. Schools. The project is not residential in nature. No impacts to schools are anticipated and no
fees are required.
G. Refuse and Recycling. The proposal will be served by adequate and appropriate recycling
facilities.
RMC 4-4-090E requires that in retail developments, a minimum of five (5) square feet per
every one thousand (1,000) square feet of building gross floor area shall be provided for
recyclables deposit areas and a minimum of ten (10) square feet per one thousand (1,000)
square feet of building gross floor area shall be provided for refuse deposit areas. A total
minimum area of one hundred (100) square feet shall be provided for recycling and refuse
deposit areas.
The proposed bank building would have an area of 2,850 sq. ft. and the convenience store
would have an area of 4,188 sq. ft. The proposed bank building would be required to
provide 6 sq. ft. of recyclable deposit areas and 12 sq. ft. of refuse deposit area or a total
minimum of 100 sq. ft. of refuse and recycling deposit areas. The proposed site plan
(Exhibit 2) includes an approximately 160 sq. ft. service area for the proposed bank
building, which would exceed the 100 sq. ft. minimum requirement.
The proposed convenience store would be required to provide 21 sq. ft. of recyclable deposit
areas and 42 sq. ft. of refuse deposit areas or a total minimum area of 100 sq. ft. of refuse
and recycling deposit areas. The proposed site plan includes an approximately 330 sq. ft.
service area for the proposed convenience store, which would exceed the minimum 100 sq.
ft. requirement.
The location of the service areas is at the north end of the project site, approximately 15 feet
from a residentially-zoned property and appears to be over the future proposed property line.
The proposed location would be acceptable, as the proposed nearby residential zone is
developed with a church and is not developed with a residential use. However, the service
area would not be permitted to be built over the future property line. A condition of
approval requires that the refuse and recyclable deposit areas be amended such that they
would not be located over the proposed future property line.
H. Parking. The proposal provides for adequate and appropriate parking because the proposed
parking complies with the City’s parking standards.
Parking regulations require that retail sales provide a minimum and maximum of 2.5 spaces per
1,000 square feet of net floor area. Bank uses require a minimum of 2.5 spaces per 1,000
square feet of net floor area and are permitted a maximum of 5.0 spaces per 1,000 square feet
of net floor area. For uses with a drive-through (drive-through ATM), the drive-through facility
shall be so located that sufficient on-site vehicle stacking space is provided for the handling of
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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motor vehicles using such facility during peak business hours. Typically 5.0 stacking spaces
per window are required unless otherwise determined by the Administrator. Stacking spaces
cannot obstruct required parking spaces or ingress/egress within the site or extend into the
public right-of-way.
According to the site plan (Exhibit 2), the proposed bank building would have an area of 2,850
sq. ft. and the convenience store would have an area of 4,188 sq. ft. Based on a total floor area
of 2,850 sq. ft. for the bank use, the proposal would be required to provide a minimum of seven
(7) spaces and would be permitted a maximum of fourteen (14) spaces. Based on a total floor
area of 4,188 sq. ft. for the retail use (convenience store), the proposal would be required to
provide a minimum and a maximum of 10 spaces. A total of 17 minimum parking spaces
would be required and a maximum of 24 parking spaces would be permitted for the proposed
entire project. The site plan includes a total of 44 parking spaces (19 spaces would be on the
bank parcel and 25 spaces would be on the convenience store parcel), which would exceed the
maximum total of 24 spaces permitted on the project site. The Applicant submitted a Parking
Analysis (Exhibit 22) and a Parking Modification request (Exhibit 23) justifying the additional
parking provided, which has been approved by this Decision per Conclusion of Law No. 3.
The proposed site plan (Exhibit 2) include the five (5) minimum required stacking spaces for
the drive-through ATM. In addition, the site plan (Exhibit 2) included stall dimensions and
aisle widths. The standard stalls would have a width of nine feet (9’) and a depth of 20 feet, the
compact stalls would have a width if eight feet, 6 inches (8’-6”) and a depth of 16 feet, and the
minimum proposed aisle width would be 24 feet. The proposed parking spaces would comply
with the dimensional requirements outlined in the Parking Regulations.
I. Landscaping. As conditioned, the proposal will conform to the City’s landscaping standards
and thus is found to provide for adequate and appropriate landscaping. The Applicant’s
landscaping plan as submitted currently does need to be revised to conform to all applicable
standards as outlined at pages 9-12 of the staff report. The staff reports findings on this issue
are adopted by reference and the staff’s recommended condition for revising the Applicant’s
landscaping plan is adopted by this decision.
J. Transit and Bicycle. The proposal is served by and provides for adequate transit and bicycle
facilities.
There are existing transit stops located on SE Benson Dr. S and SE Petrovitsky Rd., in addition
the King County Rapid Ride I-Line project is proposed and Benson Dr. S and would have
transit stops within the vicinity of the project site.
RMC 4-4-080E11 requires that the number of bicycle parking spaces shall be equal to ten
percent (10%) of the number of required off-street vehicle parking spaces. Based on a
minimum requirement for 17 total parking spaces noted in Finding of Fact No. 5H, a total of
two (2) bicycle parking spaces would be required for the proposed project. An eight foot by
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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eight foot (8’ x 8’) bicycling parking area is identified on the submitted site plan (Exhibit 2),
however a detail of the bicycle parking was not provided. To ensure compliance with the
bicycle parking requirements, a condition of approval requires that a bicycle parking detail be
submitted demonstrating that the proposal would comply with the bicycle parking requirements
as required in RMC 4-4-080F.11.
5. Adverse Impacts. There are no significant adverse impacts associated with the proposal. On
January 23, 2023 the City issued a Mitigated Determination of Non-significance (MDNS) for the
project. Impacts are more specifically addressed as follows:
A. Views. According to the staff report, the proposal includes the construction of single-
story buildings and would not adversely impact existing views of surrounding
development or views of Mt. Rainier or shorelines.
B. Compatibility. The proposal is compatible with surrounding use. Adjacent properties are
comprised of a church and office and retail use. The proposed use of moderate intensity
is compatible with these types of uses.
C. Light, glare, noise and privacy. As conditioned, the proposal will not create any
significant adverse light, noise or glare impacts and will not impact privacy.
The proposed buildings are single-story commercial buildings, in addition landscaping is
proposed around the site perimeter reducing any potential adverse privacy impacts on
surrounding properties. The proposed bank and convenience store would be situated close
to the public right-of-way, reducing any potential noise impact from these uses on
surrounding properties.
RMC 4-4-075 as well as the City’s design standards govern outdoor lighting and light
fixtures. A lighting plan was not included with the submitted application materials,
therefore staff was unable to verify compliance with this requirement. A condition of
approval requires that a lighting plan and light fixture details be provided to the Current
Planning Project Manager for review and approval at the time of Building Permit review.
D. Critical Areas. There are no critical areas mapped for the project site.
E. Tree Retention. The proposal complies with the City’s tree retention standards and thus
provides for adequate protection of trees.
A Conceptual Landscaping and Tree Retention Plan (Exhibit 3), Tree Retention and Tree
Credit Worksheet (Exhibit 20), and an Arborist report prepared by Washington Forestry
Consultants, dated December 13, 2022 (Exhibit 21) were submitted with the project
application materials. There are eight (8) significant trees identified on the project site,
none of the existing trees were proposed for retention. The City’s Tree Retention
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Regulations require the retention of thirty percent (30%) of existing significant trees. Out
of the existing eight (8) significant trees, the Applicant would be required to retain two
(2) trees (8 * 0.30 = 2.4 or 2 trees). There are three (3) trees located on the north end of
the project site and two (2) of these trees appear to be viable for retention as the parking
proposed at this location would exceed the maximum number of parking stalls permitted
on the project site (see Parking discussion below). If these trees were retained, the
proposal would be compliance with the City’s adopted Tree Retention Regulations. A
condition of approval requires that a Final Tree Retention Plan be submitted at the time of
Construction Permit review for review and approval by the Current Planning Project
Manager. The Final Tree Retention Plan shall include the retention of the two existing
healthy trees identified on the north end of the project site, unless it is determined
infeasible by the Current Planning Project Manager.
The City’s Tree Retention Regulations also require a minimum tree density of 30 credits
per net acre. The submitted Tree Retention and Credit Worksheet (Exhibit 20) concluded
that 50 tree credits would be required on the project site. Tree Credit requirements are
proposed to be satisfied through the planting of 38 small species trees, 42 medium species
trees, and 7 large species trees. It appears that the 9 street trees proposed to be planted
within the public right-of-way were included in the small species trees tree credit
calculation, these trees would not count towards the sites tree density requirements as
these trees would be located off-site within the public right-of-way. After the deduction
of the street trees, the trees to be planted onsite would result in a tree density of 63.25
credits (29 small species trees at 0.25 credits per tree + 42 medium species trees at 1
credit per tree + 7 large species trees at 2 credits per tree = 63.25 credits), which exceeds
the 50 tree credits required on the project site and would satisfy the minimum tree density
requirements.
Tree protection measures would be required during project construction in accordance
with RMC 4-4-130H.10, these measures would include the installation of a 6-foot high
chain link fence as well as signage identifying the trees as protected. The Conceptual
Grading Plan (Exhibit 8) shows some grading along the east property line abutting some
existing Douglas fir trees. To ensure that these trees are not damaged during project
construction, a condition of approval requires that an arborist be present onsite during any
grading around the root zone of on or offsite protected trees.
Conclusions of Law
1. Authority The site plan requires hearing examiner review and final approval. The street
modification and parking modification requests are subject to staff approval when reviewed separately,
but is consolidated with hearing examiner review for this application.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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RMC 4-9-200D2c requires a public hearing before the hearing examiner for site plan applications
abutting residentially zoned property. RMC 4-9-200F9b requires the hearing examiner to issue a
written decision after holding the hearing.
RMC 4-8-080G classifies the street and parking modification requests as a Type I application and the
site plan application as a Type III application.
RMC 4-8-080(C)(2) requires consolidated permits to be collectively processed under “the highest-
number procedure”. The Type III review is the “highest-number procedure” and therefore must be
employed for the site plan and street and parking modification applications. As outlined in RMC 4-8-
080(G), the hearing examiner is authorized to hold hearings and issue final decisions on Type III
applications subject to closed record appeal to the Renton City Council.
2. Zoning/Design District/Comprehensive Plan Designations. The subject property is zoned
Commercial Arterial (CA) designated Urban Design District D and has a comprehensive plan land use
designation of Commercial Mixed Use (CMU).
3. Review Criteria/Adoption of Staff Findings and Conclusions of Street Modifications. All
applicable review criteria for the conditional use and site plan applications are quoted below in italics
and applied through corresponding conclusions of law.
The criteria for the street and parking modification requests identified in Finding of Fact No. 3 are
governed by RMC 4-9-250.D.2. The findings and conclusions of Finding No. 18 and 19 and of the
staff report are adopted by this reference in full to conclude that all review criteria for the requested
street and parking modifications are met.
RMC 4-9-200(E)(3): Criteria: The Administrator or designee must find a proposed project to be in
compliance with the following:
a. Compliance and Consistency: Conformance with plans, policies, regulations and approvals,
including:
i. Comprehensive Plan: The Comprehensive Plan, its elements, goals, objectives, and
policies, especially those of the applicable land use designation; the Community Design
Element; and any applicable adopted Neighborhood Plan;
ii. Applicable land use regulations;
iii. Relevant Planned Action Ordinance and Development Agreements; and
iv. Design Regulations: Intent and guidelines of the design regulations located in RMC
4-3-100.
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4. The criterion is met. As conditioned, the proposal is consistent with all applicable
comprehensive plan policies and development standards and design standards as outlined in Findings
No. 15-17 of the staff report, adopted by this reference as if set forth in full.
RMC 4-9-200(E)(3)(b): Off-Site Impacts: Mitigation of impacts to surrounding properties and
uses, including:
i. Structures: Restricting overscale structures and overconcentration of development on a
particular portion of the site;
ii. Circulation: Providing desirable transitions and linkages between uses, streets, walkways
and adjacent properties;
iii. Loading and Storage Areas: Locating, designing and screening storage areas, utilities,
rooftop equipment, loading areas, and refuse and recyclables to minimize views from
surrounding properties;
iv. Views: Recognizing the public benefit and desirability of maintaining visual accessibility to
attractive natural features;
v. Landscaping: Using landscaping to provide transitions between development and
surrounding properties to reduce noise and glare, maintain privacy, and generally enhance the
appearance of the project; and
vi. Lighting: Designing and/or placing exterior lighting and glazing in order to avoid
excessive brightness or glare to adjacent properties and streets.
5. As conditioned, the criteria quoted above are met. As outlined in Finding of Fact No. 4(E), the
proposal provides for desirable transitions and linkages between uses, streets, walkways and adjacent
properties. As determined in Finding of Fact No. 4G, the proposal complies with the City’s refuse
and recycling standards. As determined in Finding of Fact No. 5A, the proposal will not adversely
affect any views. As determined in Finding of Fact No. 4I, the proposal is consistent with the City’s
landscaping standards, which includes perimeter landscaping to provide buffering to adjacent uses.
The proposal will not create any significant light impacts, including excessive brightness or glare, for
the reasons identified in Finding of Fact No. 5C.
RMC 4-9-200(E)(3)(c): On-Site Impacts: Mitigation of impacts to the site, including:
i. Structure Placement: Provisions for privacy and noise reduction by building placement,
spacing and orientation;
ii. Structure Scale: Consideration of the scale of proposed structures in relation to natural
characteristics, views and vistas, site amenities, sunlight, prevailing winds, and pedestrian and
vehicle needs;
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iii. Natural Features: Protection of the natural landscape by retaining existing vegetation and
soils, using topography to reduce undue cutting and filling, and limiting impervious surfaces;
and
iv. Landscaping: Use of landscaping to soften the appearance of parking areas, to provide
shade and privacy where needed, to define and enhance open spaces, and generally to enhance
the appearance of the project. Landscaping also includes the design and protection of planting
areas so that they are less susceptible to damage from vehicles or pedestrian movements.
6. The criteria quoted above are met. Given the commercial nature of the development, there is no
need to protect on-site privacy. As noted in Finding of Fact No. 5, there are no critical areas on-site
and nothing in the record suggests any other natural area in need of protection. As conditioned and
identified in Finding of Fact No. 4I, landscaping will be incorporated into to the surface parking
areas and it would be used to provide a transition between the proposed development and
surrounding development.
RMC 4-9-200(E)(3)(d): Access and Circulation: Safe and efficient access and circulation for all
users, including:
i. Location and Consolidation: Providing access points on side streets or frontage streets
rather than directly onto arterial streets and consolidation of ingress and egress points on the
site and, when feasible, with adjacent properties;
ii. Internal Circulation: Promoting safety and efficiency of the internal circulation system,
including the location, design and dimensions of vehicular and pedestrian access points,
drives, parking, turnarounds, walkways, bikeways, and emergency access ways;
iii. Loading and Delivery: Separating loading and delivery areas from parking and pedestrian
areas;
iv. Transit and Bicycles: Providing transit, carpools and bicycle facilities and access; and
v. Pedestrians: Providing safe and attractive pedestrian connections between parking areas,
buildings, public sidewalks and adjacent properties.
7. The proposal as conditioned provides for safe and efficient access and vehicular and pedestrian
circulation as required by the criterion above for the reasons identified in Finding of Fact No. 4E.
Transit and bicycle facilities are available as determined in Finding of Fact No. 4J. The proposal has
no designated loading and delivery area. Staff’s interpretation appears to be that the loading and
delivery provision quoted above only requires separation when there is a designated area for that
function. Deference is given to that interpretation as it is consistent with past staff practice.
RMC 4-9-200(E)(3)(e): Open Space: Incorporating open spaces to serve as distinctive project
focal points and to provide adequate areas for passive and active recreation by the occupants/users
of the site.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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8. The criterion is met. The proposal provides for a public plaza as identified in Finding of Fact
No. 4D. The plaza is located at the intersection of the project’s frontage roads, which serves as a
focal point as contemplated in the criterion quoted above.
RMC 4-9-200(E)(3)(f): Views and Public Access: When possible, providing view corridors to
shorelines and Mt. Rainier, and incorporating public access to shorelines.
9. There are no view corridors to shorelines or Mt. Rainier affected by the proposal as determined
in Finding of Fact No. 5A.
RMC 4-9-200(E)(3)(g): Natural Systems: Arranging project elements to protect existing natural
systems where applicable.
10. As noted in Finding of Fact No. 5D, there are no critical areas at the project site and hence no
natural systems will be affected by the proposal.
RMC 4-9-200(E)(3)(h): Services and Infrastructure: Making available public services and
facilities to accommodate the proposed use.
11. The project is served by adequate services and facilities as determined in Finding of Fact No. 4.
RMC 4-9-200(E)(3)(i): Phasing: Including a detailed sequencing plan with development phases
and estimated time frames, for phased projects.
12. There is no phasing plan proposed
DECISION
The site plan and parking and street modification requests meet all applicable review criteria for the
reasons identified in the Conclusions of Law of this decision and are approved, subject to the
following conditions:
1. The Applicant shall comply with the mitigation measures issued as part of the
Determination of Non-Significance Mitigated, dated January 23, 2023:
a. The Applicant shall implement a contingency mitigation plan to address potential
contaminated soil or groundwater handling and disposal, hazardous waste
operations, worker training, health and safety, and potential contamination
remediation.
b. An Inadvertent Discovery Plan (IDP) shall be implemented during project
construction for any archeological resources encountered on the project site.
2. A lot line adjustment or lot consolidation shall be submitted for review and approval to the
Current Planning Project manager at the time of Building Permit review and recorded prior
to the issuance of a Temporary or Final Certificate of Occupancy for the first building
constructed on the project site.
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3. The site plan shall be revised to provide the minimum required 15-foot front and secondary
front yard setback between the proposed bank building and the intersection of Benson Dr S
and SE Petrovitsky Rd. The revised site plan shall be submitted to the Current Planning
Project Manager for review and approval at the time of Construction Permit review.
4. A detailed landscape plan shall be submitted at the time of Construction Permit review for
review and approval by the Current Planning Project Manager, the detailed landscape plan
shall include, but not be limited to:
a. A 10-foot onsite landscape strip along all street frontages incorporating a mix of
trees, shrubs, and ground cover, the portion of the street frontage landscaping
abutting the surface parking lot should be planted with primarily evergreen trees and
shrubs to provide a year round screen;
b. A revised layout of the street frontage landscaping to accommodate the correct floor
plan and main entrance for the convenience store;
c. Interior parking lot landscaping (i.e. tree islands with a minimum dimension of eight
feet by twelve feet (8’ x 12') at a rate of 15 sq. ft. per parking space throughout the
entire project site, interior lot landscaping that does not meet this standards will not
be credited toward the minimum required;
d. No parking space shall be more than 50 feet from an interior parking lot landscaped
tree island;
e. Trees shall be two inches (2") in diameter at breast height (dbh). At least one (1) tree
for every six (6) parking spaces within the parking lot interior shall be planted and
around the parking lot perimeter trees shall be planted at the average minimum rate
of one (1) tree per 30 lineal feet of street frontage;
f. Shrubs at the minimum rate of one per 20 square feet of landscaped area shall be
planted. Up to fifty percent (50%) of shrubs may be deciduous;
g. Ground cover shall be planted in sufficient quantities to provide at least ninety
percent (90%) coverage of the landscaped area within three (3) years of installation;
h. The entire fifteen-foot (15’) wide landscape strip along the Residential-14 (R-14)
zone shall be landscaped;
i. The proposed plant palate shall be revised to replace Leyland cypress and juniper
species with native evergreen trees and shrubs (i.e. western red cedar, Douglas fir,
western hemlock, and/or Oregon grape).
5. A Final Tree Retention Plan shall be submitted at the time of Construction Permit review for
review and approval by the Current Planning Project Manager. The Final Tree Retention
Plan shall include the retention of the two (2) existing healthy trees identified on the north
end of the project site, unless it is determined infeasible by the Current Planning Project
Manager.
6. An arborist shall be present onsite during any grading around the root zone of on or offsite
protected trees.
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SITE PLAN and STREET AND PARKING MODS- 14
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7. The refuse and recyclable deposit areas shall be amended such that they would not be
located over the proposed future property line. A revised site plan showing the amended
refuse and recyclable deposit areas shall be submitted at the time of Construction Permit
review for review and approval by the Current Planning Project Manager.
8. A bicycle parking detail shall be submitted at the time of Building Permit Review for review
and approval by the Current Planning Project Manager demonstrating that the proposal
would comply with the bicycle parking requirements as required in RMC 4-4-080F.11.
9. A screening detail shall be provided for any proposed surface or roof mounted utility
equipment be submitted to the Current Planning Project Manager for review and approval.
The screening detail for surface mounted utility equipment that includes cross sections of
the utility and screening shall be provided at the time of Construction Permit review and the
screening detail for any roof-mounted utility equipment shall be provided at the time of
Building Permit review.
10. Revised architectural elevations shall be submitted at the time of building permit review
including weather protection with a minimum width of four and one-half feet (4-1/2') or the
Applicant shall demonstrate compliance with the guideline of this section. The architectural
elevations shall be submitted to the Current Planning Project Manager for review and
approval.
11. Garbage, recycling collection, and utility areas shall be enclosed on all sides, including the
roof and screened around their perimeter by a wall or fence and have self-closing doors. A
screening detail shall be submitted to the Current Planning Project Manager at the time of
Building Permit review for review and approval.
12. The proposed service area screening shall be comprised of masonry, ornamental metal,
wood, or some combination of the three (3).
13. Site amenity details, including outdoor seating shall be provided at the time of Construction
Permit application for review and approval by the Current Planning Project Manager. Site
furniture shall be made of durable, vandal- and weather-resistant materials that do not retain
rainwater and can be reasonably maintained over an extended period of time.
14. The Applicant shall demonstrate that the weather protection proposed comprise seventy five
percent (75%) of the street facing façades. A revised site plan and building elevations
demonstrating compliance with this requirement shall be submitted to the Current Planning
Project Manager at the time of Building Permit review for review and approval.
15. Plaza details shall be provided to the Current Planning Project Manager at the time of
Construction Permit application for review and approval. The detailed plan for the plaza
shall include street trees, decorative paving, pedestrian-scaled lighting, and seating.
16. The architectural elevation of the north façade of the proposed bank building shall be
amended to include modulation and articulation to break up the façade. Revised
architectural elevations shall be submitted to the Current Planning Project Manager for
review and approval at the time of Building Permit review.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SITE PLAN and STREET AND PARKING MODS- 15
CAO VARIANCE - 15
17. The width of the driveway abutting the north façade of the bank building shall be reduced
by four feet (4’) and a four-foot (4’) wide landscaped strip shall be included between the
north building façade and the sidewalk. This landscaped area shall be planted with a
combination of trees, shrubs, and evergreen ground cover. A revised site and landscape plan
showing this landscape area shall be submitted to the Current Planning Project Manager for
review and approval at the time of Construction Permit review.
18. Revised elevations for the proposed convenience store shall be provided to the Current
Planning Project Manager for review and approval at the time of Building Permit review.
The revised elevations shall demonstrate that the south, west, and north elevations provide
the required fifty percent (50%) transparent windows and/or doors along 50 percent of the
portion of the ground floor facade that is between 4 feet and 8 feet above ground or
demonstrate compliance with the guidelines of this section.
19. The untreated blank walls along east and north elevation of the proposed bank and the south
and north elevations of the proposed convenience store shall be treated with a planting bed
at least five feet (5’) in width containing trees, shrubs, evergreen ground cover, or vines
adjacent to the blank wall; trellis or other vine supports with evergreen climbing vines;
architectural detailing such as reveals, contrasting materials, or other special detailing that
meets the intent of this standard; artwork, such as bas-relief sculpture, mural, or similar; or
seating area with special paving and seasonal planting.
20. A materials board shall be submitted to the Current Planning Project Manager for review
and approval at the time of Building Permit application.
21. A lighting plan and light fixture details shall be provided to the Current Planning Project
Manager for review and approval at the time of Building Permit review.
22. A mix of large maturing evergreen and deciduous trees shall be planted within the interior
parking lot landscaped areas. A detailed landscape plan showing the large maturing
evergreen and deciduous trees shall be submitted to the Current Planning Project Manager at
the time of Construction Permit Review for review and approval.
DATED this 14th day of March, 2023.
City of Renton Hearing Examiner
Appeal Right and Valuation Notices
As consolidated, RMC 4-8-080(G) classifies the application(s) subject to this decision as Type III
applications subject to closed record appeal to the City of Renton City Council. Appeals of the
hearing examiner’s decision must be filed within fourteen (14) calendar days from the date of the
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SITE PLAN and STREET AND PARKING MODS- 16
CAO VARIANCE - 16
decision. A request for reconsideration to the hearing examiner may also be filed within this 14-day
appeal period.
Affected property owners may request a change in valuation for property tax purposes notwithstanding
any program of revaluation
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
CITY OF RENTON
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
HEARING EXAMINER DECISION
EXHIBITS
Project Name:
TA Benson Petro, LLC
Project Number:
LUA22-000424, SA-H, ECF, MOD, MOD
Date of Report
February 28, 2023
Staff Contact
Jill Ding
Senior Planner
Project Contact/Applicant
Alicia Baker
Tekin & Associates, LLC
2600 Dallas Pkwy, Suite 370
Frisco, TX 75034
Project Location
17426 Benson Dr SE,
10828 & 10810 SE
Petrovitsky Rd
The following exhibits are included with the Hearing Examiner Decision:
Exhibits 1-15: As shown in the Environmental Review Committee (ERC) Report
Exhibits 16-26: As shown in the Staff Report to the Hearing Examiner
Exhibit 27: Staff PowerPoint
Exhibit 28: COR Maps, http://rp.rentonwa.gov/Html5Public/Index.html?viewer=CORMaps
Exhibit 29: Google Earth, https://www.google.com/earth/
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Project Location Map
ERC_TA_Benson_Petro_v1
ENVIRONMENTAL REVIEW COMMITTEE REPORT
ERC Meeting Date: January 23, 2023
Project File Number: PR22-000345
Project Name: TA Benson Petro, LLC
Land Use File Number: LUA22-000424, SA-H, ECF, MOD, MOD
Project Manager: Jill Ding, Senior Planner
Owner: TA Benson Petro, LLC, 2600 Dallas Parkway, Suite, 370, Frisco, TX 75034
Contact: Alicia Baker, Tekin & Associates, LLC, 2600 Dallas Parkway, Suite 370, Frisco, TX
75034
Project Location: 17426 Benson Dr SE, 10828 & 10810 SE Petrovitsky Rd
Project Summary: The applicant is requesting Hearing Examiner Site Plan Review, Environmental
(SEPA) Review, a Parking Modification, and a Street Standards Modification for the
construction of a new 4,088 sq. ft. convenience store, a 2,900 sq. ft. gas station
canopy, and a 2,850 sq. ft. bank. The project site is comprised of three parcels
totaling approximately 72,980 sq. ft. (1.68 acres) in area and is located within the
Commercial Arterial (CA) zone and Urban Design District D. Access to the site is
proposed via one curb cut off of Benson Dr. SE and one curb cut off of SE Petrovitsky
Rd. Surface parking is proposed for 44 parking spaces. A parking modification was
requested to exceed the maximum number of parking spaces permitted. A street
standards modification was requested to vary from the code required frontage
improvements and instead comply with alternative plans that have been adopted
by the Transportation Division for the Benson and Petrovitsky frontages. Slopes
with grades less than 25% are mapped on the northeast corner of the project site.
No other critical areas are mapped onsite.
Exist. Bldg. Area SF: N/A Proposed New Bldg. Area (footprint):
Proposed New Bldg. Area (gross):
9,838 sq. ft.
9,838 sq. ft.
Site Area: 72,980 sq. ft.
(1.68 acres)
Total Building Area GSF: 9,838 sq. ft.
STAFF
RECOMMENDATION:
Staff Recommends that the Environmental Review Committee issue a
Determination of Non-Significance-Mitigated.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712
EXHIBIT 1
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Environmental Review Committee
LUA22-000424, SA-H, ECF, MOD, MOD
Report of January 23, 2023 Page 2 of 5
ERC_TA_Benson_Petro_v1
ENVIRONMENTAL REVIEW
In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project
impacts that are not adequately addressed under existing development standards and environmental regulations.
A. Environmental Threshold Recommendation
Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials:
Issue a DNS-M with a 14-day appeal period
B. Mitigation Measures
1. The applicant shall implement a contingency mitigation plan to address potential contaminated soil or
groundwater handling and disposal, hazardous waste operations, worker training, health and safety,
and potential contamination remediation.
2. An Inadvertent Discovery Plan (IDP) shall be implemented during project construction for any
archeological resources encountered on the project site.
C. Exhibits
Exhibit 1: Environmental Review Committee (ERC) Report
Exhibit 2: Site Plan
Exhibit 3: Landscape Plan
Exhibit 4: 7Eleven Plan Set
Exhibit 5: Chase Bank Plan Set
Exhibit 6: Fuel Canopy Elevations
Exhibit 7: Utility Plan
Exhibit 8: Conceptual Grading Plan
Exhibit 9: Drainage Plan
Exhibit 10: Geotechnical Report, prepared by PanGeo Incorporated, dated May 2019
Exhibit 11: Preliminary Technical Information Report (TIR) prepared by Contour Engineering, LLC,
dated August 2022
Exhibit 12: Traffic Impact Analysis (TIA), dated October 4, 2022, prepared by Transportation
Engineering Northwest
Exhibit 13: Street Standards Modification
Exhibit 14: Public Comments and City Response
Exhibit 15: Advisory Notes
D. Environmental Impacts
The Proposal was circulated and reviewed by various City Departments and Divisions to determine whether the
applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction
with the proposed development. Staff reviewers have identified that the proposal is likely to have the following
probable impacts:
1. Earth
Impacts: A Geotechnical Report, prepared by PanGeo Incorporated, dated May 2019 (Exhibit 10) was
included with the submitted application materials. According to the Geotech Report, the topography
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Environmental Review Committee
LUA22-000424, SA-H, ECF, MOD, MOD
Report of January 23, 2023 Page 3 of 5
ERC_TA_Benson_Petro_v1
of the site slopes down from east to west, with approximately eight (8) feet of elevation changes over
approximately 300 feet. Subsurface exploration was done through the drilling of eight (8) borings
(identified as PG1-PG8) throughout the site. The borings were drilled to a maximum depth of sixteen
(16) feet below existing grade. Borings PG-1, PG-2, and PG-5-PG8 were located within existing paved
areas and asphalt was encountered in the first two (2) to five (5) inches. Borings PG-3 and PG-4
occurred outside of paved areas and an approximately six (6) inch layer of topsoil was encountered.
Below the asphalt at locations PG-1, PG-5, PG-7, and PG-8 two and a half (2.5) to four and a half (4.5)
feet of fill was encountered. Below the fill and in area where no fill was encountered the soils consisted
of medium dense to very dense silty fine to medium sand with gravel (Vashon Till) to a depth of
approximately ten (10) to fourteen (14) feet below grade. Perched ground water was encountered
throughout the Vashon Till. Borings PG-4 and PG-6 were terminated within the Vashon Till layer. All
other borings encountered a hard sandy silt with gravel classified as the Renton Formation) below the
Vashon Till to the termination of the boring depth. Light ground water seepage was encountered at
approximately four (4) feet below grade. The geotech report indicated that this was likely perched
ground water that has developed in lenses of highly permeable soil within the weathered till formation.
As previously discussed, the native soils underlying the site consist of Vashon till, a medium dense to
very dense deposit comprised of clay, silt, sand, and gravel. Till is generally not a suitable receptor soil
for infiltration due to the high fines content and density. Therefore the report concluded that surface
water runoff on the project site should be managed with non-infiltration alternatives.
The report included recommendations regarding seismic design, building foundations, floor slabs,
retaining wall design, cut and fill slopes, and earthwork considerations. It is anticipated that the City’s
adopted building codes and erosion control measures would adequately mitigate any potential impacts
that could occur during project construction, therefore no further SEPA mitigation measures are
recommended.
Mitigation Measures: None recommended
Nexus: N/A
2. Water
a. Storm Water
Impacts: A Preliminary Technical Information Report (TIR) prepared by Contour Engineering, LLC,
dated August 2022 was submitted with the land use application materials. The project would be
subject to the 2022 City of Renton Surface Water Design Manual (RSWDM). Based on the City’s
flow control map, the site falls within the Flow Control Duration Standard area matching Forested
Site Conditions. The site falls within the Black River Drainage Basin. Existing surface water runoff
is collected and conveyed via catch basins to an existing underground storm drainage system, that
collects and conveys stormwater runoff from the existing buildings and parking lot off-site to the
south, to the storm system in SE Petrovitsky RD. From there, it travels north along Benson DR S,
and then along SE 174th Street. There is no existing on-site detention system.
To comply with the flow control requirements of the RSWDM, stormwater runoff would be
tightlined to or collected by onsite catch basins, which would direct the water to an underground
detention vault. Stormwater discharged from the vault would be routed through a water quality
device and pump system before being discharged off site into the public stormwater system in
Benson Dr. S.
Staff received comments from the Washington State Department of Ecology (DOE) (Exhibit 14)
requesting additional information regarding the proposed dewatering procedures to the
implemented onsite. The dewatering procedures would be reviewed at the time of Construction
Permit review and would be regulated through the City’s adopted 2022 City of Renton Surface
Water Design Manual; therefore, no further mitigation is recommended at this time.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Environmental Review Committee
LUA22-000424, SA-H, ECF, MOD, MOD
Report of January 23, 2023 Page 4 of 5
ERC_TA_Benson_Petro_v1
It is anticipated that the City’s adopted 2022 City of Renton Surface Water Design Manual would
adequately mitigate impacts from surface water runoff, therefore no further mitigation is
recommended.
Mitigation Measures: None recommended
Nexus: N/A
3. Environmental Health
a. Environmental Health Hazards
Impacts: Staff received comments from DOE (Exhibit 14), that the site is located on a Confirmed
and Contaminated Sites List (CSCSL) and a Leaking Underground Storage Tanks List (LUST). As such,
contaminated soils or groundwater may be located on the project site. DOE recommends that a
contingency mitigation plan be in place to address potential contaminated soil or groundwater
handling and disposal, hazardous waste operations, worker training, health and safety, and
potential contamination remediation.
To address the comments received from the Department of Ecology, staff recommends, as a SEPA
mitigation measure, that the applicant implement a contingency mitigation plan to address
potential contaminated soil or groundwater handling and disposal, hazardous waste operations,
worker training, health and safety, and potential contamination remediation.
Mitigation Measures: The applicant shall implement a contingency mitigation plan to address
potential contaminated soil or groundwater handling and disposal, hazardous waste operations,
worker training, health and safety, and potential contamination remediation.
Nexus: Renton Comprehensive Plan Policy U-32: Work to protect surface and groundwater
resources from pollutants entering the storm drainage system and SEPA Environmental
Regulations
4. Historic and Cultural Preservation
Impacts: Staff received an email from the Duwamish Tribe (Exhibit 14), which stated that they have no
substantive comments at this time and that they believe there is a moderately low risk that
archeological resources could be encountered on the project site during construction. The tribe
requests that an Inadvertent Discovery Plan (IDP) be put in place and that if archeological resources
are encountered during project construction, that they be notified. Staff recommends, as a SEPA
Mitigation Measure, that an Inadvertent Discovery Plan (IDP) be implemented during project
construction for any archeological resources encountered on the project site.
Mitigation Measures: An Inadvertent Discovery Plan (IDP) shall be implemented during project
construction for any archeological resources encountered on the project site.
Nexus: SEPA Environmental Regulations
5. Transportation
Impacts: A Traffic Impact Analysis (TIA), dated October 4, 2022, prepared by Transportation
Engineering Northwest (Exhibit 12) was included with the project application materials. The proposed
development site has frontage on SE Petrovitsky Road and on Benson Dr. S (SR 515). Access to the site
is proposed via one driveway curb off of SE Petrovitsky Rd and one curb cut off of Benson Dr S. A
modification (Exhibit 16) to the City’s frontage improvement requirements was included with the
application to enable the project to comply with the City’s Transportation Improvement Plan (TIP)
instead of the frontage improvements required in the City’s adopted Street Standards (RMC 4-6-060).
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Environmental Review Committee
LUA22-000424, SA-H, ECF, MOD, MOD
Report of January 23, 2023 Page 5 of 5
ERC_TA_Benson_Petro_v1
According to the TIA, the proposed project is estimated to generate 1,085 net new weekday daily trips,
with 71 net new trips occurring during the weekday AM peak hour (37 entering, 34 exiting), and 104
net new trips occurring during the weekday PM peak hour (52 entering, 52 exiting).
The TIA also included level of service (LOS) analyses for future year 2024 weekday AM and PM peak
hour conditions at four signalized off-site study intersections (106th Pl SE and SE Carr Rd, Benson Dr S
and Benson Rd S, Benson Dr S and SE Petrovitsky Rd, and 108th Ave SE and SE 180th St). All study
intersections are expected to operate at a LOS E or better, which is an acceptable level, during the
weekday AM and PM peak hours in 2024 without or with the proposed project.
It is anticipated that any new trips generated by the proposal would be adequately mitigated through
the payment of a Traffic Impact Fee, therefore no further mitigation is recommended.
Mitigation Measures: None recommended
Nexus: N/A
E. Comments of Reviewing Departments
The proposal has been circulated to City Department and Division Reviewers. Where applicable, their
comments have been incorporated into the text of this report and/or “Advisory Notes to Applicant.”
✓ Copies of all Review Comments are contained in the Official File and may be attached to this report.
The Environmental Determination decision will become final if the decision is not appealed within the 14-day
appeal period (RCW 43.21.C.075(3); WAC 197-11-680).
Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in
writing on or before 5:00 p.m. on February 6, 2023. Appeals must be submitted electronically to the City Clerk at
cityclerk@rentonwa.gov or delivered to City Hall 1st floor Lobby Hub Monday through Friday. The appeal fee,
normally due at the time an appeal is submitted, will be collected at a future date if your appeal is submitted
electronically. The appeal submitted in person may be paid on the first floor in our Finance Department. Appeals
to the Hearing Examiner are governed by RMC 4-8-110 and additional information regarding the appeal process
may be obtained from the City Clerk’s Office, cityclerk@rentonwa.gov.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
CITY OF RENTON
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
STAFF REPORT TO THE ENVIRONMENTAL REVIEW COMMITTEE
EXHIBITS
Project Name:
TA Benson Petro, LLC
Land Use File Number:
LUA22-000424, SA-H, ECF, MOD, MOD
Date of Meeting
January 23, 2023
Staff Contact
Jill Ding
Senior Planner
Project Contact/Applicant
Alicia Baker
Tekin & Associates, LLC
2600 Dallas Parkway, Suite 370,
Frisco, TX 75034
Project Location
17426 Benson Dr SE, 10828 &
10810 SE Petrovitsky Rd
The following exhibits are included with the ERC Report:
Exhibit 1: Environmental Review Committee (ERC) Report
Exhibit 2: Site Plan
Exhibit 3: Landscape Plan
Exhibit 4: 7Eleven Plan Set
Exhibit 5: Chase Bank Plan Set
Exhibit 6: Fuel Canopy Elevations
Exhibit 7: Utility Plan
Exhibit 8: Conceptual Grading Plan
Exhibit 9: Drainage Plan
Exhibit 10: Geotechnical Report, prepared by PanGeo Incorporated, dated May 2019
Exhibit 11: Preliminary Technical Information Report (TIR) prepared by Contour Engineering, LLC, dated
August 2022
Exhibit 12: Traffic Impact Analysis (TIA), dated October 4, 2022, prepared by Transportation Engineering
Northwest
Exhibit 13: Street Standards Modification
Exhibit 14: Public Comments and City Response
Exhibit 15: Advisory Notes
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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L
A
N
D
S
C
A
P
E
B
U
F
F
E
R
15'-0" RESIDENTIAL BUFFER
8'-0" PLANTING STRIP
PETROVISKY ROAD
BE
N
S
O
N
D
R
I
V
E
S
ITEM NO. 11 - ACCESS / UTIL.
EASEMENT, REC. NO. 8308170960
12'-0" SIDEWALK
1 INCH = 20 FT.
WHEN PRINTED @ 24X36"
100 FT50010
9
LS
LS
10
'
-
0
"
L
A
N
D
S
C
A
P
E
B
U
F
F
E
R
LS
10
4'
SETBACK
1,000 SF
PUBLIC
PLAZA
R
2
5
'
-
0
"
2'-0" BACK OF WALK
CURB
LINE
8'-
0
"
S
I
D
E
W
A
L
K
8'-
0
"
P
L
A
N
T
I
N
G
S
T
R
I
P
2'-
0
"
B
A
C
K
O
F
W
A
L
K
R5
5
'
-
0
"
12
'
-
0
"
8'-
0
"
11
'
-
0
"
8'-0"8'-0"13'-0"
162'-8 1/2"
9'-
0
"
28'-0"
10'-0"
LS
LS
LS
LS
2'
10
'
-
0
"
55'-7 1/2"
MONUMENT
SIGN
7
SPLIT TANK
DIESEL/GASOLINE
19'-10 1/2"
5
DUMPSTER
ON
E
WA
Y
7
DO
N
O
T
E
N
T
E
R
6
7-11
4,188 SF
11 STALLS REQ'D
(2.5/1000SF)
9'-
0
"
9'-
0
"
9'-
0
"
20'-0"16'-0"24'-0"73'-0"
SIDEWALK
ENTRY
BANK
2,860 SF
8 STALLS REQ'D
(2.5/1000 SF)
c
10'-0" SETBACK
12
'
-
0
"
8'-
0
"
11
'
-
0
"
2'
10
'
-
0
"
20'-10 5/8"4'-0"9'-6"
5'-
0
"
67
'
-
3
"
5'-
0
"
24
'
-
0
"
8'-4"
10'-0"
60
'
-
1
0
"
ATM
R25'-
0
"
R2
5
'
-
0
"
LS
20'-0"
AL
T
E
R
N
A
T
E
LO
A
D
I
N
G
Z
O
N
E
12
'
X
6
0
'
36'-0"
10
LS
LS
LS
28'-0"
60
'
-
0
"
ST
R
E
E
T
W
I
D
T
H
EXISTING CURB LINE
80'-0"
STREET WIDTH
EXISTING
CURB LINE
R18
'
-
0
"
SITE AREA: 72,980 SF, 1.68 ACRES
BUILDING AREAS:
BANK: 2,850 SF FOOTPRINT
7-11: 4,188 SF FOOTPRINT
7-11 CANOPY: 2,900 SF FOOTPRINT
TOTAL ALL BUILDINGS = 9,838 SF
R35
'
-
0
"
12
1
'
-
6
"
24
'
-
0
"
8'-
6
"
9'-0"
c
8'x8'
BIKE RACK
AREA
LOT COVERAGE: 78%
SF OF ALL LANDSCAPING: 15,491 SF
ALLOWED AND PROPOSED BUILDING HEIGHT:
BUILDING HEIGHT ALLOWED: 50'-0"
BUILDING HEIGHT PROPOSED:
BANK = 32'-0"
7-11 = 23'-0"
BUILDING SETBACKS REQUIRED BY CODE:
FRONT: 15'-0" REQUIRED - 29'-0" PROPOSED
REAR: 15'-0" REQUIRED - 15'-0" PROPOSED AT RESIDENTIAL ADJACENCY
SIDE: 0'-0" REQUIRED - 10'-0" PROPOSED LANDSCAPE BUFFER
PARKING ANALYSIS:
PARKING RATIO PER USE:
BANK: 2.5 STALLS/ 1,000 SF
RETAIL: 2.5 STALLS/ 1,000 SF
STANDARD STALLS: 9'X20' @ 90 DEGREES
COMPACT STALLS: 8'-6"X16' @ 90 DEGREES
COMPACT STALL RATIO: 30% OF 44 PROPOSED STALLS = 13 ALLOWED; 7 COMPACT STALLS
PROVIDED
44 PARKING STALLS TOTAL - 4 OF WHICH ARE ADA
*SEE SITE PLAN FOR NUMBER OF HANDICAP STALLS, COMPACT, EMPLOYEE AND/OR
GUEST PARKING STALLS; LOCATION AND SIZE OF CURB CUTS; TRAFFIC FLOW,
LOADING AND MANEUVERING AREAS AND INGRESS AND EGRESS; WHEEL STOPS,
LOADING AND STACKING SPACE; BICYCLE RACKS AND CARPOOL PARKING SPACES.
SF OF INTERIOR PARKING LOT LANDSCAPING: 1,450 SF
5 20 30 70
c
c
c
c
LS
LS
LS
SID
E
W
A
L
K
ALTERNATE TANK
LOCATION
PR
O
P
O
S
E
D
P
R
O
P
.
L
I
N
E
4 ISLAND STACKED
36' X 53' CANOPY
3+1DSL 3+1DSL
C-STORE SIGNAGE*:
122FT STREET FRONTAGE
183SF SIGN ALLOWED
1 SIGN @ STREET FRONTAGE
BANK SIGNAGE*:
300FT STREET FRONTAGE
164FT @ 176th - 246SF SIGN
136FT @ BENSON - 204SF SIGN
MAX. 300SF TOTAL SIGN ALLOWED
1 SIGN PER STREET FRONTAGE
*1.5 SF PER 1.0 LINEAL FOOT OF STREET FRONTAGE
UP TO 300 SF; MAXIMUM 1/2 OF ALLOWED SF ON
EACH FACE.
62
'
-
0
"
24
'
-
0
"
47
'
-
0
"
24
'
-
4
"
20
'
-
0
"
10
'
-
0
"
11'-0"11'-0"
5'-0"
8'-0"
8'-
0
"
20
'
-
0
"
31'-0"
MONUMENT
SIGN
9'-6"10'-0"5'-6"
20'-0"
DRIVE
UP ATM
THRU
ONLY
DO NOT ENTER
SECURITY
PLANTERS
5'
5'-6"
7-11CHASE
BANK PARCEL:
33,215 SF
C-STORE PARCEL:
39,765 SF
8'-0"
34
'
-
6
"
TO
B
L
D
G
F
A
C
E
2'-0" BACK OF WALK
PROPERTY
LINE
PR
O
P
E
R
T
Y
L
I
N
E
PROPERTY LINE
15
'
-
0
"
5'-0"
2'-6"
ROW
15' BLDG
SETBACK PMU FLOORSPINNER:SUNGLASSESGLOVESUMBRELLASMCOBAG STAND
SPINNER
EMPL.
BUN DRAWERWASTE
A
FEM -
C
H
I
P
S
MAGNUSHSS
4' CAN
D
Y
R
A
C
K
2' CANDY
R
A
C
K
4' CAND
Y
R
A
C
K
CIG'S
CIG'S
ITP
OTP
HSSMAGNUS
S
15'-0"
3110 RUSTON WAY, SUITE D, TACOMA, WA 98402
Ph: 253-272-4214 FAX: 253-272-4218
Sheet:
PROJECT:
DATE:SCALE:DRAWN BY: JW
JON GRAVES
ARCHITECTS & PLANNERS
BENSON DRIVE S. & PETROVISKY RD. SE
RENTON, WA
SKETCH TITLE:CHASE BANK and 7-11 PRELIM SITE PLAN
2022-11-21 1" = 40'-0"
opt8
EXHIBIT 2 RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
TREE #3
EX. 12" JAPANESEMAPLE TO BE REMOVED
TREE #2EX. 10"COTTONWOOD TO BE
REMOVED
TREE #1
EX. 7" BLACKLOCUST TO BEREMOVED
TREE #4EX. 10" ENGLISHYEW TO BE REMOVED
TREE #5
EX. 12" ENGLISHYEW TO BE REMOVED
TREE #7EX. 12" COTTONWOODTO BE REMOVED
TREE #8EX. 14"
COTTONWOOD TO BEREMOVED
ITEM NO. 11 - ACCESS / UTIL.EASEMENT, REC. NO. 8308170960
SETBACK
1,000 SF
PUBLIC
PLAZA
CURBLINE
MONUMENT
SIGN
DUMPSTER
ON
E
WA
Y
DO
N
O
T
E
N
T
E
R
ENTRY
BANK
2,850 SF
c
ATM
AL
T
E
R
N
A
T
E
LO
A
D
I
N
G
Z
O
N
E
12
'
X
6
0
'
EXISTING CURB LINE
c
8'x8'BIKE RACKAREA
3'x
2
0
'
BI
K
E
R
A
C
K
c
c
c
c
ALTERNATE TANK
LOCATION
PR
O
P
O
S
E
D
P
R
O
P
.
L
I
N
E
3+1DSL 3+1DSL
MONUMENT SIGN
DRIVE
UP ATM
THRU
ONLY
DO NOT ENTER
SECURITY
PLANTERS
7-11CHASE
COMMON NAMEBOTANICAL NAME
DECIDUOUS TREES
SIZE & SPACING
TREE REPLACEMETN LEGEND
CERCIDIPHYLLUM JAPONICUM KATSURA TREE
SKYROCKET JUNIPERJUNIPERUS SCOPULORUM 'SKYROCKET'
2" CALIPER, 30' O.C., 5' GRAFT
6'-8' HEIGHT, 3' O.C SPACING
QTY
BETULA UTILIS VAR. JACQUEMONTII JACQUEMONTII BIRCH 2" CALIPER, 30' O.C., 5' GRAFT
EVERGREEN TREES
STYRAX JAPONICUS 'PINK CHIMES PINK CHIMES JAPANESE SNOWBELL 2" CALIPER, 30' O.C., 5' GRAFT
LEYLAND CYPRESSCUPRESSUS × LEYLANDII 6'-8' HEIGHT, 6' O.C SPACING
LAGERSTROEMIA INDICA X FAURIEI MUSKOGEE CRAPE MYRTLE 2" CALIPER, 5' GRAFT4
7
9
7
42
18
C
SIZE
SMALL
LARGE
SMALL
MEDIUM
SMALL
SMALL
C C C C
EXISTING TREE TO BE REMOVEDX
X X X
X X
X XX
Graphic Scale: 1" = 20'-0"
0 10' 20'40'80'
DATE:
NUMBER:
PROJECT:Benson and Petr. Redevelop
December 16, 2022
LLA0365.22
TITLE:
DESIGN: EJW
DRAWN: EJWCHECKED: MJL
SHEET:
SCALE:
Be
n
s
o
n
a
n
d
P
e
t
r
o
v
i
t
s
k
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Re
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o
p
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t
17
4
2
6
B
e
n
s
o
n
D
r
i
v
e
S
o
u
t
h
Re
n
t
o
n
,
W
A
9
8
0
0
5
PROJECT ADDRESS:
21
1
1
S
o
u
t
h
C
S
t
r
e
e
t
,
T
a
c
o
m
a
,
W
A
9
8
4
0
2
25
3
-
6
7
8
-
4
1
7
3
|
E
r
i
c
@
L
y
o
n
L
A
.
c
o
m
DRAWING SET:
Pe
r
m
i
t
S
e
t
REVISIONS:
REV 1:
REV 2:REV 3:
Know what's below.before you dig.Call
R
REVIEW SET
NOT FOR
CONSTRUCTION
TR1.00
TREE RETENTION
PLAN
EXHIBIT 3
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
TREE #3EX. 12" JAPANESEMAPLE TO BE REMOVED
TREE #2EX. 10"
COTTONWOOD TO BEREMOVED
TREE #1EX. 7" BLACKLOCUST TO BE
REMOVED
TREE #4
EX. 10" ENGLISHYEW TO BE REMOVED
TREE #5EX. 12" ENGLISHYEW TO BE REMOVED
TREE #6
EX. 12" COTTONWOODTO BE REMOVED
TREE #7EX. 12" COTTONWOOD
TO BE REMOVED
TREE #8EX. 14"
COTTONWOOD TO BEREMOVED
SE 176TH STREET
BE
N
S
O
N
D
R
I
V
E
S
ITEM NO. 11 - ACCESS / UTIL.
EASEMENT, REC. NO. 8308170960
SETBACK
1,000 SF
PUBLICPLAZA
CURB
LINE
MONUMENT
SIGN
DUMPSTER
ON
E
WA
Y
DO
N
O
T
E
N
T
E
R
ENTRY
BANK2,850 SF
c
ATM
AL
T
E
R
N
A
T
E
LO
A
D
I
N
G
Z
O
N
E
12
'
X
6
0
'
EXISTING CURB LINE
EXISTINGCURB LINE
c
8'x8'BIKE RACKAREA
3'x
2
0
'
BIK
E
R
A
C
K
c
c
c
c
ALTERNATE TANK
LOCATION
PR
O
P
O
S
E
D
P
R
O
P
.
L
I
N
E
3+1DSL 3+1DSL
MONUMENT SIGN
DRIVEUP ATM
THRUONLY
DO NOT ENTER
SECURITY
PLANTERS
7-11CHASE
LANDSCAPE NOTES AND SOIL QUALITY
1.LANDSCAPE AREAS SHOULD BE DEEP-TILLED TO A DEPTH OF AT LEAST TWELVE (12) INCHES TO FACILITATE DEEP WATER
PENETRATION AND SOIL OXYGENATION. PROVIDE SOIL AMENDMENTS ENCOURAGED TO IMPROVE WATER DRAINAGE, MOISTURE
PENETRATION OR WATER-HOLDING CAPACITY. FOR ALL NEWLY LANDSCAPED AREAS ORGANIC MATTER SHOULD BE
INCORPORATED TO A DEPTH OF FOUR (4) TO SIX (6) INCHES TO FACILITATE DEEP WATER PENETRATION AND SOIL OXYGENATION.
3.IMPORTED TOPSOIL SHALL BE 3-WAY MIX.
4.CONTRACTOR SHALL PROVIDE 2" DEPTH FINE COMPOST MULCH THROUGHOUT LANDSCAPE PLANTING AREAS.
2.CONTRACTOR SHALL PROVIDE 9" DEPTH IMPORTED TOPSOIL AT ALL LANDSCAPE PLANTING AREAS.
CONTRACTOR SHALL GUARANTEE ALL PLANT MATERIALS FOR A PERIOD OF (1) ONE YEAR AFTER APPROVAL BY
OWNER OR OWNER'S REPRESENTATIVE.
5.
TREES PLANTED FIVE FEET OR LESS FROM PAVED SURFACES SHALL BE PLANTED WITH ROOT CONTROL BARRIER.6.
STREET TREES
30' O.C., TYP.
COMMON NAMEBOTANICAL NAME
DECIDUOUS TREES
SIZE & SPACING
PLANT LEGEND
SHRUBS
GROUNDCOVER
PRUNUS LAUROCERASUS 'OTTO LUYKEN'OTTO LUYKEN ENGLISH LAUREL
ARCTOSTPYLLOS UVA-URSI KINNIKINNICK 1 GALLON, 30" O.C. SPACING
CERCIDIPHYLLUM JAPONICUM KATSURA TREE
SKYROCKET JUNIPERJUNIPERUS SCOPULORUM 'SKYROCKET'
2" CALIPER, 30' O.C., 5' GRAFT
6'-8' HEIGHT, 3' O.C SPACING
QTY
PHORMIUM 'APRICOT QUEEN'APRICOT QUEEN FLAX
2 GALLON, 3' O.C. SPACING
3 GALLON, 4' O.C. SPACING
BERBERIS THUNBERGII 'ROSE GLOW'ROSE GLOW JAPANESE BARBERRY 3 GALLON, 4' O.C. SPACING
2 GALLON, 3' O.C. SPACINGCALAMAGROSTIS 'KARL FOERSTER'KARL FOERSTER FEATHER REED GRASS
BETULA UTILIS VAR. JACQUEMONTII JACQUEMONTII BIRCH
1 GALLON, 36" O.C. SPACINGPENNISETUM SETACEUM 'RUBRUM'PURPLE FOUNTAIN GRASS
CAREX TESTACEA ORANGE SEDGE 1 GALLON, 30" O.C. SPACING
WEIGELA FLORIDA 'ALEXANDRA'WINE AND ROSES WEIGALA 2 GALLON, 4' O.C. SPACING
HYDRANGEA MACRO 'ALL SUMMER BEAUTY'ALL SUMMER BEAUTY HYDRANGEA 2 GALLON, 4' O.C. SPACING
2" CALIPER, 30' O.C., 5' GRAFT
SITE LEGEND
EVERGREEN TREES
STYRAX JAPONICUS 'PINK CHIMES PINK CHIMES JAPANESE SNOWBELL 2" CALIPER, 30' O.C., 5' GRAFT
LEYLAND CYPRESSCUPRESSUS × LEYLANDII 6'-8' HEIGHT, 6' O.C SPACING
RUDBECKIA HIRTA BLACK EYED SUSAN 1 GALLON, 30" O.C. SPACING
LAGERSTROEMIA INDICA X FAURIEI MUSKOGEE CRAPE MYRTLE 2" CALIPER, 5' GRAFT4
HYDROSEED MIXES
SPECIAL SUN MIXTURE BY COUNTRY GREEN TURF FARMS
PERENNIAL RYEGRASS
FINE FESCUE
80%
20%
8 LBS PER 1000 SQ. FT.
CALLUNA VULGARIS 'FIREFLY'FIREFLY SCOTCH HEATHER 1 GALLON, 30" O.C. SPACING
NANDINA DOMESTICA 'MOON BAY'MOON BAY HEAVENLY BAMBOO 2 GALLON, 4' O.C. SPACING
6' BENCH WITH (3) BACKRESTS
VECTOR SEATING SYSTEM BY FORMS + SURFACES (412-781-9003),
OR APPROVED EQUAL BY OWNER
SEAT MATERIAL: ALUMINUM SLATS. BENCHES: POWDER COATED, SILVER TEXTURE
BENCHES: SURFACE MOUNTED TO CONCRETE PAVING. PROVIDE NEOPRENE GASKETS AT SEPARATIONBETWEEN CONCRETE PAVING AND BENCH.
CONFIRM COLOR, MATERIALS AND EXACT LOCATION W/ OWNER PRIOR TO INSTALLATION.
7
9
7
42
18
53
59
10
11
26
32
83
16
288
31
34
68
C
C C C C
PARKING LOT LANDSCAPING REQUIREMENTS
PARKING LANDSCAPING MINUMUM (44 STALLS X15 SF) = 660 SF
TOTAL PARKING LOT LANDSCAPING PROPOSED = 2.920 SF
Graphic Scale: 1" = 20'-0"
0 10' 20'40'80'
DATE:
NUMBER:
PROJECT:Benson and Petr. Redevelop
December 16, 2022
LLA0365.22
TITLE:
DESIGN: EJW
DRAWN: EJWCHECKED: MJL
SHEET:
SCALE:
Be
n
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a
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P
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Re
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17
4
2
6
B
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S
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Re
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PROJECT ADDRESS:
21
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c
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DRAWING SET:
Pe
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m
i
t
S
e
t
REVISIONS:
REV 1:
REV 2:REV 3:
Know what's below.before you dig.Call
R
REVIEW SET
NOT FOR
CONSTRUCTION
L1.00
LANDSCAPE
PLAN
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
PLANT IMAGES
DATE:
NUMBER:
PROJECT:Benson and Petr. Redevelop
December 16, 2022
LLA0365.22
TITLE:
DESIGN: EJW
DRAWN: EJWCHECKED: MJL
SHEET:
SCALE:
Be
n
s
o
n
a
n
d
P
e
t
r
o
v
i
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s
k
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Re
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p
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17
4
2
6
B
e
n
s
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v
e
S
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u
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Re
n
t
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,
W
A
9
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0
0
5
PROJECT ADDRESS:
21
1
1
S
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u
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C
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e
t
,
T
a
c
o
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a
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A
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0
2
25
3
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7
8
-
4
1
7
3
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E
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i
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@
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L
A
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c
o
m
DRAWING SET:
Pe
r
m
i
t
S
e
t
REVISIONS:
REV 1:
REV 2:REV 3:
Know what's below.before you dig.Call
R
REVIEW SET
NOT FOR
CONSTRUCTION
L1.01
PLANT IMAGES
AND TREECALCS.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
BE
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2
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2
2
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1
2 2
2
2
22
3
3
3
3
3
3
4
4
1
1
1
1
1
FIBER CEMENT PANELS
FIBER CEMENT PANELS
FIBER CEMENT PANELS
ALUMINUM REVEALS
4’-6” WIDE LIGHT WEIGHT METAL CANOPY
FIBER CEMENT PANELS W / REVEALS
FIBER CEMENT BOARD / BATTEN SIDING
FIBER CEMENT BOARD / BATTEN SIDING
FIBER CEMENT BOARD / BATTEN SIDING
4’-6” WIDE LIGHT WEIGHT METAL CANOPY 4’-6” WIDE LIGHT WEIGHT METAL CANOPY
4’-6” WIDE LIGHT WEIGHT METAL CANOPY
STOREFRONT WINDOW
PREFENISHED METAL PARAPET CAP, TYP.
PREFENISHED METAL PARAPET CAP, TYP.
FIBER CEMENT PANELS
FIBER CEMENT PANELS
TOP OF PARAPET
TOP OF PARAPET
TOP OF PARAPET
TOP OF PARAPET
TOP OF PARAPET
TOP OF WINDOW
BOTTOM OF ENTRY
BOTTOM OF CANOPY
FINISHED FLOOR
FINISHED FLOOR
NORTH ELEVATION
FAUX STONE
SOUTH ELEVATION
SCALE: 1/8” = 1’-0” WHEN PRINTED @ 11”X17”
METAL DOORFAUX STOREFRONT FENESTRATION ALUMINUM STOREFRONT
ALUMINUM STOREFRONT
0’4’8’16’32’
EXHIBIT 4
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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SCALE: 1/8” = 1’-0” WHEN PRINTED @ 11”X17”
TOP OF PARAPET
TOP OF PARAPET
TOP OF PARAPET
TOP OF PARAPET
BOTT OF CANOPYAPET
BOTT OF CANOPYAPET
TOP OF PARAPET
TOP OF PARAPET
FINISHED FLOOR
FINISHED FLOOR
0’4’8’16’32’
FIBER CEMENT BOARD / BATTEN SIDING
FIBER CEMENT BOARD / BATTEN SIDING
PREFENISHED METAL PARAPET CAP, TYP.
PREFENISHED METAL PARAPET CAP, TYP.
4’-6” WIDE LIGHT WEIGHT METAL CANOPY
4’-6” WIDE LIGHT WEIGHT METAL CANOPY
4’-6” WIDE LIGHT WEIGHT METAL CANOPY4’-6” WIDE LIGHT WEIGHT METAL CANOPY
4’-6” WIDE LIGHT WEIGHT METAL CANOPY
DECORATIVE WALL SCONCE
FAUX STOREFRONT FENESTRATION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
1/8" = 1'-0" WHEN PRINTED @ 11X17"
052 5 10 25FT15
7-11
4,188 SF
11 STALLS REQ'D
(2.5/1000SF)
PMU FLOORSPINNER:SUNGLASSESGLOVESUMBRELLASMCO
BAG STAND
SPINNER
EMPL.
BUN DRAWERWASTE
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3110 RUSTON WAY, SUITE D, TACOMA, WA 98402
Ph: 253-272-4214 FAX: 253-272-4218
Sheet:
PROJECT:
DATE:SCALE:DRAWN BY: JW
JON GRAVES
ARCHITECTS & PLANNERS
BENSON DRIVE S. & PETROVISKY RD. SE
RENTON, WA
SKETCH TITLE:7-11 FLOOR PLAN PRELIM 7-11 FLOOR PLAN
2022-11-21 1/8" = 1'-0"
opt8
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
LAO
57"x30"
6'
-
2
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H
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(STREET FACING)
LIVING ROOM
ATM 1
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BOOTH 2
BOOTH 1
CONFERENCE 3PCS 4PCS 5
PCS 6
PCS 7
PCS 8
COPY RM EQUIP/ WORK RM
MANUAL
TELLERSTATION
ENTRANCE 1
(PARKING)
10
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VESTIBULE 1
VESTIBULE 2
43'-0"
66
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-
4
"
A2.0
1
A2.0
2
A2.1
1
11/09/2022
CBR22002.0
PROJECT INFORMATION BLOCK
JOB #
DATE:
DRAWN BY:
CHECKED BY:
MODEL
SHEET TITLE
SHEET NUMBER
ISSUE DATE DESCRIPTION
ARCHITECT/ ENGINEER OF RECORD
PM
AS
ISSUED FOR PRE-APP11/09/22
DRAWING STANDARDS v20.5
These drawings and specifications are the confidential and proprietary property
of JP Morgan Chase and shall not be copied or reproduced without written
authorization. The contract documents were prepared for use on this specific
site in conjunction with its issue date and are not suitable for use on a different
site or at a later time. Use of these drawings for reference or example on
another project requires the services of properly licensed architects and
engineers. Reproduction of the contract documents for reuse on another
project is not authorized.
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6930 Destiny Drive, #100
Rocklin, CA. 95677
PROPOSED
FLOOR PLAN
A1.01
A1.0 1/4 = 1'-0"
PROPOSED FLOOR PLAN
EXHIBIT 5
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lobby HoursMon - Sat Sun
Drive-up HoursMon - Sat
Sun
9:00 - 5:00Closed
9:00 - 5:00
Closed
Lobby HoursMon - Sat Sun
Drive-up HoursMon - Sat
Sun
9:00 - 5:00Closed
9:00 - 5:00
Closed
ADDRESS
T.O. SLAB
0'-0"
T.O. PARAPET
+ 19'-4"
T.O. PARAPET
+ 21'-6"
B.O. OVERHANG
+ 10'-0"
RC-1 FC-1 ST-4
RC-1FC-2
FC-2
FC-1
ACM-1
A-1A-2 A-8A-3
A-6
A-4
Lobby HoursMon - Sat
Sun
Drive-up HoursMon - SatSun
9:00 - 5:00
Closed
9:00 - 5:00Closed
Lobby HoursMon - Sat
Sun
Drive-up HoursMon - SatSun
9:00 - 5:00
Closed
9:00 - 5:00Closed
ADDRESS
T.O. SLAB
0'-0"
T.O. PARAPET
+ 19'-4"
T.O. PARAPET
+ 21'-6"
T.O. WINDOW
+ 10'-0"
T.O. PARAPET
+ 17'-10"
FC-2 RC-1 FC-1 ST-4
ACM-1
A-1A-1 A-2
A-3
A-5
A-6A-4
TOWER AT ANGLE
1
A2.0 1/4"=1'-0"
EAST ELEVATION (FRONT)
11/09/2022
CBR22002.0
PROJECT INFORMATION BLOCK
JOB #
DATE:
DRAWN BY:
CHECKED BY:
MODEL
SHEET TITLE
SHEET NUMBER
ISSUE DATE DESCRIPTION
ARCHITECT/ ENGINEER OF RECORD
PM
AS
ISSUED FOR PRE-APP11/09/22
DRAWING STANDARDS v20.5
These drawings and specifications are the confidential and proprietary property
of JP Morgan Chase and shall not be copied or reproduced without written
authorization. The contract documents were prepared for use on this specific
site in conjunction with its issue date and are not suitable for use on a different
site or at a later time. Use of these drawings for reference or example on
another project requires the services of properly licensed architects and
engineers. Reproduction of the contract documents for reuse on another
project is not authorized.
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6930 Destiny Drive, #100
Rocklin, CA. 95677
2
A2.0 1/4"=1'-0"
SOUTH ELEVATION (SIDE)PROPOSED
EXTERIOR
ELEVATIONS
A2.0
EXTERIOR FINISH MATERIALS
ST-4
CAST STONE- ROCKFACE FIELD UNITS
MANUFACTURER CORONADO STONE PRODUCTS
PRODUCT MANUFACTURED STONE VENEER
COLOR CREAM
FINISH CHISELED LIMESTONE
SIZE 24" WIDE x 12" HIGH x 1" THICK
GROUT 1/4" NOMINAL JOINTS WITH FULL SMOOTH TOOLED NATURAL
OFF-WHITE PORTLAND CEMENT GROUT
NOTES
RUNNING BOND MANUFACTURED THIN STONE FIELD-CUT
TO MAX. LENGTHS POSSIBLE WITH BUTTED AND LAPPED
INSIDE AND OUTSIDE CORNERS UTILIZING
MANUFACTURER'S FABRICATED RETURN CORNER PIECES-
MITERED CORNERS ARE NOT ACCEPTABLE- PLACE
CONTROL JOINTS AS RECOMMENDED BY THE
MANUFACTURER- REFER TO WALL SECTIONS AND DETAILS
FC-1
FIBER CEMENT PANEL- DARK
MANUFACTURER NICHIHA FIBER CEMENT
PRODUCT VINTAGEWOOD AWP 1818 (AVAILABLE AS AWP 3030 FOR
NON-PROTOTYPICAL PROJECTS)
COLOR BARK
SIZE 18" NOMINAL x 72" NOMINAL AND 120" NOMINAL
NOTES INCLUDE 3.5" MANUFACTURED CORNERS AND
MANUFACTURER'S "ESSENTIAL" FLASHING SYSTEM.
FC-2
FIBER CEMENT PANEL- LIGHT
MANUFACTURER NICHIHA FIBER CEMENT
PRODUCT VINTAGEWOOD AWP 3030 (AVAILABLE AS AWP 1818 FOR
NON-PROTOTYPICAL PROJECTS)
COLOR ASH
SIZE 18" NOMINAL x 72" NOMINAL AND 120" NOMINAL
NOTES INCLUDE 3.5" MANUFACTURED CORNERS AND
MANUFACTURER'S "ESSENTIAL" FLASHING SYSTEM.
RC-1
ROOF COPING
MANUFACTURER PETERSEN ALUMINUM / PAC-CLAD
PRODUCT PAC-CONTINUOUS
COLOR AGED BRONZE
ACM-1
ALUMINUM COMPOSITE MATERIAL
MANUFACTURER ALCOA ARCHITECTURAL PRODUCTS
PRODUCT REYNOBOND
COLOR DURAGLOSS 5000 CHASE PROGRAM "CHASE SILVER"
EXTERIOR ELEVATION KEYNOTES
A-1 BLACK ANODIZED STOREFRONT SYSTEM - CLEAR GLAZING
A-2 CLEAR ANODIZED STOREFRONT SYSTEM - CLEAR GLAZING
A-3 ACM METAL PANEL
A-4
ENTRANCE CANOPY:
SHOP FABRICATED SITE-ASSEMBLED PRE-FINISHED BLACK CUSTOM ALUMINUM
CANOPY UNIT WITH PREPPED ELECTRICAL OPENINGS AND INTEGRAL
DRAINAGE SYSTEM FASTENDED TO BUILDING STRUCTURE- MAPES
ARCHITECTURAL CANOPIES SUPER LUMIDECK WITH FLAT SOFFIT AND 12"
FASCIA, OR APPROVED EQUAL
A-5 METAL SUN SCREEN
A-6 SIGNAGE BY SIGN VENDOR, UNDER SEPARATE PERMIT.
A-7 HOLLOW METAL DOOR
A-8 SURFACE-MOUNT DECORATIVE LIGHT FIXTURE
A-9 SURFACE-MOUNT EMERGENCY LIGHT FIXTURE
A-10 GAS METER
A-11 ELECTRICAL EQUIPMENT
EPT-2
EXTERIOR PAINT
MANUFACTURER SHERWIN-WILLIAMS
PRODUCT METALATEX ACRYLIC SEMI-GLOSS
COLOR SW 7036 ACCESSIBLE BEIGE
FINSH SEMI-GLOSS
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lobby HoursMon - Sat Sun
Drive-up HoursMon - SatSun
9:00 - 5:00Closed
9:00 - 5:00Closed
Lobby HoursMon - Sat Sun
Drive-up HoursMon - SatSun
9:00 - 5:00Closed
9:00 - 5:00Closed
ADDRESS
T.O. SLAB
0'-0"
T.O. PARAPET
+ 17'-6"
T.O. PARAPET
+ 19'-4"
T.O. STOREFRONT
+ 10'-0"
ST-4RC-1 FC-1 FC-2RC-1
A-1 A-1
A-6A-6 A-4
A-8
TOWER AT ANGLE
T.O. SLAB
0'-0"
T.O. PARAPET
+ 19'-4"
T.O. PARAPET
+ 21'-6"
B.O. OVERHANG
+ 10'-0"
ST-4RC-1
RC-1
FC-1FC-1
A-1 A-7
EPT-2
A-11 A-10A-9A-8
PROPOSED
EXTERIOR
ELEVATIONS
A2.1
1
A2.1 1/4"=1'-0"
WEST ELEVATION (REAR)
11/09/2022
CBR22002.0
PROJECT INFORMATION BLOCK
JOB #
DATE:
DRAWN BY:
CHECKED BY:
MODEL
SHEET TITLE
SHEET NUMBER
ISSUE DATE DESCRIPTION
ARCHITECT/ ENGINEER OF RECORD
PM
AS
ISSUED FOR PRE-APP11/09/22
DRAWING STANDARDS v20.5
These drawings and specifications are the confidential and proprietary property
of JP Morgan Chase and shall not be copied or reproduced without written
authorization. The contract documents were prepared for use on this specific
site in conjunction with its issue date and are not suitable for use on a different
site or at a later time. Use of these drawings for reference or example on
another project requires the services of properly licensed architects and
engineers. Reproduction of the contract documents for reuse on another
project is not authorized.
PR
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6930 Destiny Drive, #100
Rocklin, CA. 95677
2
A2.1 1/4"=1'-0"
NORTH ELEVATION (SIDE)
EXTERIOR FINISH MATERIALS
ST-4
CAST STONE- ROCKFACE FIELD UNITS
MANUFACTURER CORONADO STONE PRODUCTS
PRODUCT MANUFACTURED STONE VENEER
COLOR CREAM
FINISH CHISELED LIMESTONE
SIZE 24" WIDE x 12" HIGH x 1" THICK
GROUT 1/4" NOMINAL JOINTS WITH FULL SMOOTH TOOLED NATURAL
OFF-WHITE PORTLAND CEMENT GROUT
NOTES
RUNNING BOND MANUFACTURED THIN STONE FIELD-CUT
TO MAX. LENGTHS POSSIBLE WITH BUTTED AND LAPPED
INSIDE AND OUTSIDE CORNERS UTILIZING
MANUFACTURER'S FABRICATED RETURN CORNER PIECES-
MITERED CORNERS ARE NOT ACCEPTABLE- PLACE
CONTROL JOINTS AS RECOMMENDED BY THE
MANUFACTURER- REFER TO WALL SECTIONS AND DETAILS
FC-1
FIBER CEMENT PANEL- DARK
MANUFACTURER NICHIHA FIBER CEMENT
PRODUCT VINTAGEWOOD AWP 1818 (AVAILABLE AS AWP 3030 FOR
NON-PROTOTYPICAL PROJECTS)
COLOR BARK
SIZE 18" NOMINAL x 72" NOMINAL AND 120" NOMINAL
NOTES INCLUDE 3.5" MANUFACTURED CORNERS AND
MANUFACTURER'S "ESSENTIAL" FLASHING SYSTEM.
FC-2
FIBER CEMENT PANEL- LIGHT
MANUFACTURER NICHIHA FIBER CEMENT
PRODUCT VINTAGEWOOD AWP 3030 (AVAILABLE AS AWP 1818 FOR
NON-PROTOTYPICAL PROJECTS)
COLOR ASH
SIZE 18" NOMINAL x 72" NOMINAL AND 120" NOMINAL
NOTES INCLUDE 3.5" MANUFACTURED CORNERS AND
MANUFACTURER'S "ESSENTIAL" FLASHING SYSTEM.
RC-1
ROOF COPING
MANUFACTURER PETERSEN ALUMINUM / PAC-CLAD
PRODUCT PAC-CONTINUOUS
COLOR AGED BRONZE
ACM-1
ALUMINUM COMPOSITE MATERIAL
MANUFACTURER ALCOA ARCHITECTURAL PRODUCTS
PRODUCT REYNOBOND
COLOR DURAGLOSS 5000 CHASE PROGRAM "CHASE SILVER"
EXTERIOR ELEVATION KEYNOTES
A-1 BLACK ANODIZED STOREFRONT SYSTEM - CLEAR GLAZING
A-2 CLEAR ANODIZED STOREFRONT SYSTEM - CLEAR GLAZING
A-3 ACM METAL PANEL
A-4
ENTRANCE CANOPY:
SHOP FABRICATED SITE-ASSEMBLED PRE-FINISHED BLACK CUSTOM ALUMINUM
CANOPY UNIT WITH PREPPED ELECTRICAL OPENINGS AND INTEGRAL
DRAINAGE SYSTEM FASTENDED TO BUILDING STRUCTURE- MAPES
ARCHITECTURAL CANOPIES SUPER LUMIDECK WITH FLAT SOFFIT AND 12"
FASCIA, OR APPROVED EQUAL
A-5 METAL SUN SCREEN
A-6 SIGNAGE BY SIGN VENDOR, UNDER SEPARATE PERMIT.
A-7 HOLLOW METAL DOOR
A-8 SURFACE-MOUNT DECORATIVE LIGHT FIXTURE
A-9 SURFACE-MOUNT EMERGENCY LIGHT FIXTURE
A-10 GAS METER
A-11 ELECTRICAL EQUIPMENT
EPT-2
EXTERIOR PAINT
MANUFACTURER SHERWIN-WILLIAMS
PRODUCT METALATEX ACRYLIC SEMI-GLOSS
COLOR SW 7036 ACCESSIBLE BEIGE
FINSH SEMI-GLOSS
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
FUEL CANOPY FASCIA SIGNS
3'
-
0
"
3'
-
0
"
NORTHEAST
SOUTH WEST
88'38'
24”
10’-6”
25”
26”
25”
26”
EXHIBIT 6RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Geotechnical & Earthquake
Engineering Consultants
GEOTECHNICAL REPORT
BENSON DRIVE SOUTH AND
SOUTHEAST PETROVITSKY ROAD
Renton, Washington
PROJECT NO. 19-122
May 2019
Prepared for:
TA Renton BP, LLC
EXHIBIT 10
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
________________________________________________
3213 Eastlake Avenue East, Suite B
Seattle, WA 98102
T. (206) 262-0370
F. (206) 262-0374
Geotechnical & Earthquake
Engineering Consultants
May 13, 2019
PanGEO Project No. 19-122
Ms. Michelle Woodward
TA Renton BP, LLC
2600 North Dallas Parkway, Suite 370
Frisco, Texas 75234
Subject: Geotechnical Report
Proposed Retail Development
Benson Drive South and Southeast Petrovitsky Road
Renton, Washington
Dear Ms. Woodward:
As requested, PanGEO, Inc. is pleased to present this geotechnical report to assist the
project team with the design and construction of the proposed retail development located
in the northeast corner of the intersection of Benson Drive South and Southeast Petrovitsky
Road in Renton, Washington.
In preparing this report, we observed and logged the drilling of eight test borings at the site
and conducted our engineering analyses. In summary, our test borings encountered up to
about 4 feet of fill overlying glacially consolidated soils and highly weathered bedrock.
In our opinion, the proposed buildings may be supported on spread footings bearing on
competent native soils or on structural fill placed on competent native soils.
We appreciate the opportunity to be of service. Should you have any questions, please do
not hesitate to call.
Sincerely,
Scott D. Dinkelman, LEG
Senior Engineering Geologist
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
19-122 Benson Drive and Petrovitsky Road Page 1 PanGEO, Inc.
TABLE OF CONTENTS
Section Page
1.0 GENERAL .................................................................................................................1
2.0 SITE AND PROJECT DESCRIPTION .....................................................................1
3.0 SUBSURFACE EXPLORATIONS ...........................................................................3 3.1 SITE GEOLOGY ................................................................................................3 3.2 SUBSURFACE EXPLORATION ...........................................................................3 3.3 SOIL CONDITIONS............................................................................................4 3.4 GROUNDWATER ..............................................................................................5
4.0 INFILTRATION CONSIDERATIONS ....................................................................6
5.0 GEOTECHNICAL RECOMMENDATIONS ...........................................................6 5.1 SEISMIC DESIGN PARAMETERS ........................................................................6 5.2 BUILDING FOUNDATIONS ................................................................................7
5.2.1 Lateral Resistance ...........................................................................8
5.2.2 Perimeter Footing Drains ...............................................................8
5.2.3 Footing Subgrade Preparation .......................................................9 5.3 FLOORS SLABS ................................................................................................9 5.4 RETAINING WALL DESIGN PARAMETERS ........................................................10
5.4.1 Lateral Earth Pressures ..................................................................10
5.4.2 Surcharge ........................................................................................10
5.4.3 Lateral Resistance ...........................................................................10
5.4.4 Wall Drainage .................................................................................11
5.4.5 Wall Backfill....................................................................................11 5.5 PERMANENT CUT AND FILL SLOPES ................................................................11
6.0 EARTHWORK CONSIDERATIONS .......................................................................12 6.1 STRIPPING, CLEARING AND SUBGRADE PREPARATION ....................................12 6.2 PERCHED SEEPAGE CONTROL .........................................................................12 6.3 TEMPORARY EXCAVATIONS AND SHORING .....................................................13 6.4 MATERIAL REUSE ...........................................................................................13 6.5 STRUCTURAL FILL AND COMPACTION .............................................................13 6.6 WET WEATHER CONSTRUCTION .....................................................................14 6.7 EROSION CONSIDERATIONS .............................................................................15
7.0 ADDITIONAL SERVICES .......................................................................................16
8.0 CLOSURE .................................................................................................................16
9.0 REFERENCES ...........................................................................................................18
ATTACHMENTS:
Figure 1 Vicinity Map
Figure 2 Site and Exploration Plan
Appendix A Boring Logs
Figures A-1 and A-1a Terms and Symbols for Boring and Test Pit Logs
Figures A-2 to A-9 Logs of Test Borings PG-1 through PG-8
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GEOTECHNICAL REPORT
PROPOSED RETAIL DEVELOPMENT
BENSON DRIVE SOUTH AND SOUTHEAST PETROVITSKY ROAD
RENTON, WASHINGTON
1.0 GENERAL
As requested, PanGEO is pleased to present this geotechnical report for the proposed retail
development to be located northeast corner of the Benson Drive South and Southeast
Petrovitsky Road in Renton, Washington. This study was performed in general accordance
with our mutually agreed scope of services outlined in our proposal dated April 12, 2019.
Our scope of services included reviewing readily available geologic and geotechnical data,
drilling eight borings, conducting a site reconnaissance, and preparing this report.
2.0 SITE AND PROJECT DESCRIPTION
The subject is comprised of three separate parcels located at 17426 Benson Drive South,
10810 Southeast Petrovitsky Road and 10828 Southeast Petrovitsky Road in the northeast
corner of the intersection of Benson Drive South and Southeast Petrovitsky Road in
Renton, Washington. The approximate location of the site is shown on Figure 1, Vicinity
Map.
The three parcels have an aggregate area of approximately 1.67 acres. The layout of the
site is shown on Figure 2, Site and Exploration Plan. Plate 1, below shows an aerial view
of the site. The approximately L-shaped property is bordered to the northwest by a two-
story office building, to the north by a single-story church, to the east by two single-story
office buildings, to the west by Benson Drive South, and to the south by Southeast
Petrovitsky Road. The site slopes down from east to west, with about 8 feet of elevation
change across the approximate 300-foot length of the site.
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Plate 1: Aerial view
of the site.
Benson Drive is
along the left side of
photo. Southeast
Petrovitsky Road is
along the bottom.
(Bing Maps)
Plate 2: View from
northwest corner of
the site looking site to
the south-southeast.
The site is currently developed with three one-story buildings that are vacant or being used
as offices. We understand it is planned to demolish the existing structures and redevelop
the site with a bank building, a convenience store with a detached fueling island, and three
retail buildings. The proposed development layout is shown on Figure 2.
The proposed buildings will be one-story in height and will be constructed at or near
existing site grades and we anticipate cuts and fills of less than five feet will be required to
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achieve construction subgrade elevations. The proposed buildings will be surrounded by
asphalt paved parking and drive areas.
The conclusions and recommendations in this report are based on our understanding of the
proposed development, which is in turn based on the project information provided. If the
above project description is incorrect, or the project information changes, we should be
consulted to review the recommendations contained in this study and make modifications,
if needed. In any case PanGEO should be retained to provide a review of the final design
to confirm that our geotechnical recommendations have been correctly interpreted and
adequately implemented in the construction documents.
3.0 SUBSURFACE EXPLORATIONS
3.1 SITE GEOLOGY
General geologic information for the project area was obtained by reviewing the Geologic
Map of the Renton Quadrangle, King County, Washington (Mullineaux, 1965) and the
Geologic Map of the Tacoma 1:100,000-scale Quadrangle, Washington (Schuster et al,
2015). Based on our review, the geologic units in the vicinity of the site consist of Vashon
till – Geologic Map Unit Qgt, with Renton Formation sedimentary units mapped nearby –
Geologic Map Unit Ec2pg.
Vashon till is described as consisting of an unsorted deposit (diamict) of clay, silt, sand and
gravel that has been glacially transported and deposited. This soil has been directly
deposited by a glacier and overridden by several thousand feet of glacial ice and is typically
dense to very dense.
The Renton Formation sedimentary unit is locally classified as part of the Puget Group and
described as an interbedded sedimentary rock consisting of sandstone, siltstone, shale,
claystone, carbonaceous shale and coal beds. This unit is considered the bedrock unit in
this area.
3.2 SUBSURFACE EXPLORATION
We drilled and logged eight borings at the site on April 23, 2019. The borings were drilled
using a track-mounted EC95 drill rig owned and operated by Boretec Drilling, Inc. under
subcontract to PanGEO and were logged by a geologist with our firm. The borings were
drilled to a maximum depth of about 16 feet below existing grade. The approximate boring
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locations were located in the field by measuring from property corners and site features
and are shown on Figure 2, Site and Exploration Plan.
Standard Penetration Tests (SPT) were performed at 2½- to 5-foot depth intervals using a
standard, 2-inch diameter split-spoon sampler. The sampler was advanced with a 140-
pound drop hammer falling a distance of 30 inches for each strike, in general accordance
with ASTM D1586, Standard Test Method for Penetration Test and Split Barrel Sampling
of Soils.
The soils were logged in general accordance with ASTM D2487 Standard Practice for
Classification of Soils for Engineering Purposes and the system summarized on Figure A-
1 and Figure A-1a, Terms and Symbols for Boring and Test Pit Logs.
3.3 SOIL CONDITIONS
For a detailed description of the subsurface conditions encountered at each exploration
location, please refer to our boring logs provided in Appendix A. The stratigraphic contacts
indicated on the boring logs represent the approximate depth to boundaries between soil
units. Actual transitions between soil units may be more gradual or occur at different
elevations. The descriptions of groundwater conditions and depths are likewise
approximate. The following is a generalized description of the soils encountered in the
borings.
Asphalt: Test borings PG-1, PG-2, PG-5, PG-6, PG-7 and PG-8 were located in
asphalt paved parking and drive areas. At these locations we encountered between
two and five inches of asphalt surfacing.
Topsoil: Borings PG-3 and PG-4 were located outside of paved areas. In these areas,
we encountered a surficial layer of topsoil comprised of about six inches of silty sand
with organics and roots.
Fill: Below the asphalt at the locations of PG-1, PG-5, PG-7 and PG-8, we
encountered fill. The fill generally consisted of a few inches of gravel over sandy silt
with varying amounts of gravel and cobbles. This unit ranged from 2½ to 4½ feet
thick. The approximate fill thicknesses are identified on the boring logs and on Figure
2.
Weathered Vashon Till (Qgt): The native soil below the fill and in areas where fill
was not encountered consists of medium dense to very dense silty fine to medium sand
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with gravel and which we classified as Vashon Till. At the base of this unit, from
approximately 10 to 14 feet below grade, the till graded to dense to very dense.
Perched groundwater was encountered throughout this unit.
The Vashon till encountered at our boring locations is consistent with the geologic
mapping of this area. Test borings PG-4 and PG-6 were terminated in this unit.
Renton Formation (Ec2pg): With the exception of borings PG-4 and PG-6, all of our
other test borings encountered a hard sandy silt with gravel below the weathered
Vashon Till. We classified the hard silt as the Renton Formation (bedrock). The
Renton Formation was identifiable with the increase in coal fragments present in the
samples. This unit is highly weathered to a residual soil (relative weathering RVI) at
the top and graded to less weathered with depth.
The Renton Formation encountered at our boring locations is consistent with the upper
unit of the Puget Group mapping of the region. In test boring PG-1 this unit was only
slightly weathered at approximately 13 feet (relative weathering RII) and in test boring
PG-7 this unit was highly weathered at approximately 15 feet (relative weathering
RIV). Test borings PG-2, PG-3, PG-5, and PG-8 terminated in the residual soil
(relative weathering RVI) portion of this unit.
Our subsurface descriptions are based on the conditions encountered at the time of our
exploration. Soil conditions between our exploration locations may vary from those
encountered. The nature and extent of variations between our exploratory locations may
not become evident until construction. If variations do appear, PanGEO should be
requested to reevaluate the recommendations in this report and to modify or verify them in
writing prior to proceeding with earthwork and construction.
3.4 GROUNDWATER
Increased soil moisture and light groundwater seepage was encountered beginning at
approximately 4 feet below grade during drilling. This moisture is likely perched
groundwater that has developed in lenses of highly permeable soil within the weathered till
formation. If seepage is encountered, we anticipate seepage rates will be light to moderate.
Groundwater levels will change depending on the season, amount of rainfall, surface water
runoff, and other factors. Generally, the water level is higher and seepage rates are greater
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in the wetter, winter months (typically October through May). During periods of
significant precipitation, perched groundwater may also be present at the fill-till contacts.
4.0 INFILTRATION CONSIDERATIONS
The native soils underlying the site consist of Vashon till, a medium dense to very dense
deposit comprised of clay, silt, sand, and gravel. Till is generally not a suitable receptor
soil for infiltration due to the high fines content and density. Where loosened by
weathering infiltration rates of about ½ inch per hour may be obtained. Where
unweathered, infiltration rates are typically less than 0.1 inch per hour. Perched
groundwater, which can limit infiltration, also develops in till soils during wet season at
the transition from weathered to unweathered soils.
The site is also underlain by a surficial layer of fill. Fill soils are not suitable for infiltration
due to their variable nature and the potential for them to consolidate we wetted, changing
their infiltration characteristics over time.
In summary, it is our opinion that non-infiltration alternatives should be considered to
manage the surface runoff at the site.
5.0 GEOTECHNICAL RECOMMENDATIONS
5.1 SEISMIC DESIGN PARAMETERS
The 2015 International Building Code (IBC) seismic design section provides a basis for
seismic design of structures. Table 1 below provides seismic design parameters for the site
that are in conformance with the 2015 IBC, which specifies a design earthquake having a
2% probability of occurrence in 50 years (return interval of 2,475 years), and the 2008
USGS seismic hazard maps.
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Table 1 – Seismic Design Parameters
The spectral response accelerations were obtained from the USGS Earthquake Hazards
Program Interpolated Probabilistic Ground Motion website (2008 data) for the project
latitude and longitude.
Liquefaction Potential: Liquefaction is a process that can occur when soils lose shear
strength for short periods of time during a seismic event. Ground shaking of sufficient
strength and duration results in the loss of grain-to-grain contact and an increase in pore
water pressure, causing the soil to behave as a fluid. Soils with a potential for liquefaction
are typically cohesionless, predominately silt and sand sized, must be loose, and be below
the groundwater table. The site is predominantly underlain by very dense silty sand with
gravel and hard sandy silt without a defined groundwater table. Based on these conditions,
in our opinion the liquefaction potential of the site is negligible and design considerations
related to soil liquefaction are not necessary for this project.
5.2 BUILDING FOUNDATIONS
Based on the subsurface conditions encountered at the site and our understanding of the
planned development, it is our opinion the proposed buildings may be supported on
conventional footings. The footings should bear on the medium dense to very dense,
undisturbed native soil below the fill, or on properly compacted structural fill placed on
undisturbed native soil.
We encountered up to about 4½ feet of fill at our test boring locations. If fill is encountered
at the foundation subgrade elevation, the fill should be overexcavated and replaced with
properly compacted structural fill. The overexcavation width should extend at least one
foot beyond the width of the foundation elements.
Site
Class
Spectral
Acceleration
at 0.2 sec.
[g]
SS
Spectral
Acceleration
at 1.0 sec.
[g]
S1
Site
Coefficients
Design Spectral
Response
Parameters
Control Periods
[sec.]
Fa Fv SDS SD1 TO TS
C 1.396 0.520 1.000 1.300 0.931 0.451 0.096 0.484
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Exterior foundation elements should be placed at a minimum depth of 18 inches below
final exterior grade. Interior spread foundations should be placed at a minimum depth of
12 inches below the top of concrete slabs.
A maximum allowable soil bearing pressure of 3,000 pounds per square foot (psf) should
be used for sizing foundation elements bearing on dense to very dense native soil, or on
structural fill. PanGEO should be retained to determine the adequacy of footing subgrade
during construction.
The recommended allowable soil bearing pressure is for dead plus live loads. For
allowable stress design, the recommended bearing pressure may be increased by one-third
for transient loading, such as wind or seismic forces. Continuous and individual spread
footings should have minimum widths of 18 and 24 inches, respectively.
Footings designed and constructed in accordance with the above recommendations should
experience total settlement of less than one inch and differential settlement of less than ½
inch. Most of the anticipated settlement should occur during construction as dead loads
are applied.
5.2.1 Lateral Resistance
Lateral loads on the structure may be resisted by passive earth pressure developed against
the embedded portion of the foundation system and by frictional resistance between the
bottom of the foundation and the supporting subgrade soils. For footings bearing on the
dense to very dense silty sand, a frictional coefficient of 0.35 may be used to evaluate
sliding resistance developed between the concrete and the subgrade soil. Passive soil
resistance may be calculated using an equivalent fluid weight of 350 pcf, assuming
foundations are backfilled with structural fill. The above values include a factor of safety
of 1.5. Unless covered by pavements or slabs, the passive resistance in the upper 12 inches
of soil should be neglected.
5.2.2 Perimeter Footing Drains
Footing drains should be installed around the perimeter of the buildings, at or just below
the invert of the footings. Under no circumstances should roof downspout drain lines be
connected to the footing drain systems. Roof downspouts must be separately tightlined to
appropriate discharge locations. Cleanouts should be installed at strategic locations to
allow for periodic maintenance of the footing drain and downspout tightline systems.
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5.2.3 Footing Subgrade Preparation
At our boring locations, we encountered 2½ to 4½ feet of fill. The fill is variable and would
not be suitable for direct support of foundation loads. If fill is encountered at the foundation
subgrade elevation, the fill should be overexcavated and replaced with structural fill. The
overexcavation width should extend at least one half the overexcavation depth beyond the
width of the foundation elements.
All footing subgrade should be properly prepared and in a dense and unyielding condition
prior to setting forms and placing reinforcing steel. Any loose or softened soil should be
removed from the footing excavations. The adequacy of the footing subgrade soils should
be verified by a representative of PanGEO, prior to placing forms or rebar.
5.3 FLOORS SLABS
The floor slabs for the proposed building may be constructed using conventional concrete
slab-on-grade floor construction. The floor slab should be supported on competent native
soil or on structural fill. Any over-excavations, if needed, should be backfilled with
structural fill.
If the existing fill is encountered in slab-on-grade areas, the fill should be removed to a
depth of 12 inches below the capillary break, the surface compacted to the requirements of
structural fill, and the grade restored using structural fill.
Interior concrete slab-on-grade floors should be underlain by a capillary break consisting
of at least of 4 inches of pea gravel or compacted ¾-inch, clean crushed rock (less than 3
percent fines). The capillary break material should meet the gradational requirements
provided in Table 2, next page.
Table 2 – Capillary Break Gradation
The capillary break should be placed on the subgrade that has been compacted to a dense
and unyielding condition.
Sieve Size Percent Passing
¾-inch 100
No. 4 0 – 10
No. 100 0 – 5
No. 200 0 – 3
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A 10-mil polyethylene vapor barrier should also be placed directly below the slab.
Construction joints should be incorporated into the floor slab to control cracking.
5.4 RETAINING WALL DESIGN PARAMETERS
Retaining walls, if needed, should be designed to resist the lateral earth pressures exerted
by the soils behind the wall. Proper drainage provisions should also be provided behind
the walls to intercept and remove groundwater that may be present behind the wall. Our
geotechnical recommendations for the design and construction of retaining walls are
presented below.
5.4.1 Lateral Earth Pressures
Cantilever walls should be designed for an equivalent fluid pressure of 35 pcf for a level
backfill condition behind the walls assuming the walls are free to rotate. If the walls are
restrained at the top from free movement, such as basement walls with a floor diaphragm,
an equivalent fluid pressure of 45 pcf should be used for a level backfill condition behind
the walls. Permanent walls should be designed for an additional uniform lateral pressure
of 7H psf for seismic loading, where H corresponds to the buried depth of the wall.
The recommended lateral pressures assume the backfill behind the walls consists of a free
draining and properly compacted fill with adequate drainage provisions.
5.4.2 Surcharge
Surcharge loads, where present, should also be included in the design of retaining walls.
We recommend a lateral load coefficient of 0.3 be used to compute the lateral pressure on
the wall face resulting from surcharge loads located within a horizontal distance of one-
half the wall height.
5.4.3 Lateral Resistance
Lateral forces from seismic loading and unbalanced lateral earth pressures may be resisted
by a combination of passive earth pressures acting against the embedded portions of the
foundations and by friction acting on the base of the wall foundation. Passive resistance
values may be determined using an equivalent fluid weight of 350 pcf. This value includes
a factor of safety of 1.5, assuming the footing is backfilled with structural fill. A friction
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coefficient of 0.35 may be used to determine the frictional resistance at the base of the
footings. The coefficient includes a factor of safety of 1.5.
5.4.4 Wall Drainage
Provisions for wall drainage should consist of a 4-inch diameter perforated drainpipe
placed behind and at the base of the wall footings, embedded in 12 to 18 inches of clean
crushed rock or pea gravel wrapped with a layer of filter fabric. A minimum 18-inch wide
zone of free draining granular soils (i.e. pea gravel or washed rock) is recommended to be
placed adjacent to the wall for the full height of the wall. Alternatively, a composite
drainage material, such as Miradrain 6000, may be used in lieu of the clean crushed rock
or pea gravel. The drainpipe at the base of the wall should be graded to direct water to a
suitable outlet.
5.4.5 Wall Backfill
Wall backfill should consist of imported, free draining granular material or a soil meeting
the requirements of Gravel Borrow as defined in Section 9-03.14(1) of the WSDOT
Standard Specifications for Road, Bridge, and Municipal Construction (WSDOT 2014).
In areas where space is limited between the wall and the face of excavation, pea gravel may
be used as backfill without compaction.
In our opinion, the predominately silty sand and sandy silt soils underlying the site are not
suitable for use as wall backfill.
Wall backfill should be moisture conditioned to within about 3 percent of optimum
moisture content, placed in loose, horizontal lifts less than 8 inches in thickness, and
systematically compacted to a dense and relatively unyielding condition and to at least 95
percent of the maximum dry density, as determined using test method ASTM D1557.
Within 5 feet of the wall, the backfill should be compacted with hand-operated equipment
to at least 90 percent of the maximum dry density.
5.5 PERMANENT CUT AND FILL SLOPES
Based on the anticipated soil that will be exposed in the planned excavation, we
recommend permanent cut and fill slopes be constructed no steeper than 2H:1V
(Horizontal:Vertical).
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6.0 EARTHWORK CONSIDERATIONS
6.1 STRIPPING, CLEARING AND SUBGRADE PREPARATION
Foundation and pavement areas, and areas to receive structural fill, should be stripped and
cleared of surface vegetation, organic matter, existing pavements, and other deleterious
materials. In no case should stripped materials be used as structural fill nor should they be
mixed with materials to be used as structural fill. Outside of construction areas, the existing
site pavement may be left in-place to provide an all-weather construction surface.
In areas where existing foundations, slab-on-grade floors, and pavements are removed, it may
be possible to crush the existing materials for re-use as structural fill. Materials reclaimed by
crushing to be re-used as structural fill should have a maximum particle size of four inches
and should be mixed with soil to provide a well-graded fill material.
Existing underground utilities to be abandoned should be plugged or removed so they do not
provide a conduit for water and cause soil saturation and stability problems.
Following the stripping operation and excavations necessary to achieve construction
subgrade elevations, the ground surface where structural fill, or pavements are to be placed
should be observed by PanGEO. Proofrolling using a fully loaded dump truck should be
performed to identify soft or unstable areas.
Soft or yielding areas identified during proofrolling should be moisture conditioned as
needed and re-compacted in place. If soft areas are still yielding after re-compaction, they
should be overexcavated and replaced with structural fill to a depth that will provide a stable
pavement base. The optional use of a geotextile subgrade stabilization fabric, such as
Mirafi 600X, or an equivalent product placed directly on the over-excavated surface may
help to bridge excessively unstable areas.. Overexcavated areas should be and backfilled
with WSDOT 9-03.9(3) Crushed Surfacing Base Course, or WSDOT 9-03.14 (1) Gravel
Borrow (WSDOT, 2018) compacted to the requirements of structural fill. The subgrade
preparation should be observed by an individual experienced with earthwork construction,
to verify the adequacy of the prepared subgrade.
6.2 PERCHED SEEPAGE CONTROL
Perched groundwater was encountered in our borings at four to eleven feet below grade.
The seepage encountered appeared to be perched and likely develops during the wet
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season. Groundwater seepage may be encountered in site excavations, especially deep
excavations, such as for underground utility trenches.
Where seepage is encountered, the base of the excavation should be sloped to one or more
shallow sump pits. The collected water can then be pumped from these pits to a positive
and permanent discharge point. The spacing of the sumps should be determined during
construction based on field observations at the time of construction.
Where loose soils are encountered in conjunction with groundwater seepage the excavation
subgrade bottom may become soft. In these areas, remedial measures such as
overexcavating soft soils or tamping quarry spalls into the base of the excavation may be
required.
6.3 TEMPORARY EXCAVATIONS AND SHORING
Temporary excavations should be constructed in accordance with Part N of WAC
(Washington Administrative Code) 296-155. The contractor is responsible for maintaining
safe excavation slopes and/or shoring. It is our opinion temporary excavations in the fill
soils and underlying native soils may be cut at a maximum 1H:1V inclination.
Temporary excavations should be evaluated in the field during construction based on actual
observed soil conditions. If seepage is encountered, excavation slope inclinations may
need to be reduced. During wet weather, the temporary slopes may need to be flattened to
reduce potential erosion or should be covered with plastic sheeting.
6.4 MATERIAL REUSE
The native soils underlying the site are moisture sensitive, and will become disturbed and
soft when exposed to inclement weather conditions. We do not recommend reusing the
native soils as structural fill. If it is planned to use the native soil in non-structural areas,
the excavated soil should be stockpiled and protected with plastic sheeting to prevent it
from becoming saturated by precipitation or runoff.
6.5 STRUCTURAL FILL AND COMPACTION
Structural fill, should be free of organic and inorganic debris, be near the optimum moisture
content and be capable of being compacted to the recommendations provided below. The
site soils are relatively fine grained and, in our opinion will not be suitable for re-use as
structural fill and an imported structural fill will be needed. Fill for use during wet weather
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should consist of a well graded soil free of organic material with less than 5 percent fines
(silt and clay sized particles passing the U.S. 200 sieve).
Structural fill should be moisture conditioned to within about 3 percent of optimum
moisture content, placed in loose, horizontal lifts less than 8 inches in thickness, and
compacted to at least 95 percent maximum density, determined using ASTM D1557
(Modified Proctor). The procedure to achieve proper density of a compacted fill depends
on the size and type of compacting equipment, the number of passes, thickness of the lifts
being compacted, and certain soil properties. If the excavation to be backfilled is
constricted and limits the use of heavy equipment, smaller equipment can be used, but the
lift thickness will need to be reduced to achieve the required relative compaction.
Generally, loosely compacted soils are a result of poor construction technique or improper
moisture content. Soils with high fines contents are particularly susceptible to becoming
too wet and coarse-grained materials easily become too dry, for proper compaction. Silty
or clayey soils with a moisture content too high for adequate compaction should be dried
as necessary, or moisture conditioned by mixing with drier materials, or other methods.
6.6 WET WEATHER CONSTRUCTION
The wet season in Western Washington typically extends from October through May.
Earthwork during the wet season requires planning and may require the use of imported
wet weather fill materials that can increase earthwork costs. General recommendations
relative to earthwork performed in wet weather or in wet conditions are presented below.
The following procedures are best management practices recommended for use in wet
weather construction:
• Earthwork should be performed in small areas to minimize subgrade exposure
to wet weather. Excavation or the removal of unsuitable soil should be followed
promptly by the placement and compaction of clean structural fill. The size and
type of construction equipment used may have to be limited to prevent soil
disturbance.
• During wet weather, the allowable fines content of the structural fill should be
reduced to no more than 5 percent by weight based on the portion passing the
0.75-inch sieve. The fines should be non-plastic.
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 15 PanGEO, Inc.
• The ground surface within the construction area should be graded to promote
run-off of surface water and to prevent the ponding of water.
• Geotextile silt fences should be installed at strategic locations around the site to
control erosion and the movement of soil.
• Excavation slopes and soils stockpiled on site should be covered with plastic
sheeting.
6.7 EROSION CONSIDERATIONS
Surface runoff can be controlled during construction by careful grading practices.
Typically, this includes the construction of shallow, upgrade perimeter ditches or low
earthen berms in conjunction with silt fences to collect runoff and prevent water from
entering excavations or to prevent runoff from the construction area leaving the immediate
work site. Temporary erosion control may require the use of hay bales on the downhill
side of the project to prevent water from leaving the site and potential storm water detention
to trap sand and silt before the water is discharged to a suitable outlet. All collected water
should be directed under control to a positive and permanent discharge system.
Permanent control of surface water should be incorporated in the final grading design.
Adequate surface gradients and drainage systems should be incorporated into the design
such that surface runoff is collected and directed away from the structure to a suitable
outlet. Potential issues associated with erosion may also be reduced by establishing
vegetation within disturbed areas immediately following grading operations.
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 16 PanGEO, Inc.
7.0 ADDITIONAL SERVICES
To confirm that our recommendations are properly incorporated into the design and
construction of the proposed development, PanGEO should be retained to conduct a review
of the final project plans and specifications, and to monitor the construction of geotechnical
elements. PanGEO can provide you a cost estimate for construction monitoring services
at a later date.
8.0 CLOSURE
We have prepared this report for TA Renton BP, LLC and the project design team.
Recommendations contained in this report are based on a site reconnaissance, a subsurface
exploration program, review of pertinent subsurface information, and our understanding of
the project. The study was performed using a mutually agreed-upon scope of services.
Variations in soil conditions may exist between the locations of the explorations and the
actual conditions underlying the site. The nature and extent of soil variations may not be
evident until construction occurs. If any soil conditions are encountered at the site that are
different from those described in this report, we should be notified immediately to review
the applicability of our recommendations. Additionally, we should also be notified to
review the applicability of our recommendations if there are any changes in the project
scope.
The scope of our work does not include services related to construction safety precautions.
Our recommendations are not intended to direct the contractors’ methods, techniques,
sequences or procedures, except as specifically described in our report for consideration in
design. Additionally, the scope of our services specifically excludes the assessment of
environmental characteristics, particularly those involving hazardous substances. We are
not mold consultants nor are our recommendations to be interpreted as being preventative
of mold development. A mold specialist should be consulted for all mold-related issues.
This report has been prepared for planning and design purposes for specific application to
the proposed project in accordance with the generally accepted standards of local practice
at the time this report was written. No warranty, express or implied, is made.
This report may be used only by the client and for the purposes stated, within a reasonable
time from its issuance. Land use, site conditions (both off and on-site), or other factors
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 17 PanGEO, Inc.
including advances in our understanding of applied science, may change over time and
could materially affect our findings. Therefore, this report should not be relied upon after
24 months from its issuance. PanGEO should be notified if the project is delayed by more
than 24 months from the date of this report so that we may review the applicability of our
conclusions considering the time lapse.
It is the client’s responsibility to see that all parties to this project, including the designer,
contractor, subcontractors, etc., are made aware of this report in its entirety. The use of
information contained in this report for bidding purposes should be done at the contractor’s
option and risk. Any party other than the client who wishes to use this report shall notify
PanGEO of such intended use and for permission to copy this report. Based on the intended
use of the report, PanGEO may require that additional work be performed and that an
updated report be reissued. Noncompliance with any of these requirements will release
PanGEO from any liability resulting from the use this report.
Sincerely,
PanGEO, Inc.
Scott D. Dinkelman, LEG, LHG Siew L Tan, P.E.
Senior Engineering Geologist Principal Geotechnical Engineer
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 18 PanGEO, Inc.
9.0 REFERENCES
International Code Council, 2015, International Building Code (IBC), 2015.
Mullineaux, D.R., 1965, Geologic Map of the Renton Quadrangle, King County,
Washington – U.S. Geological Survey Geologic, Quadrangle Map GQ-405, scale
1:24,000.
Schuster, J.E., Cabibbo, A.A., Schilter, J.F., and Hubert I.J., 2015, Geologic Map of the
Tacoma 1:100,000-scale Quadrangle, Washington – Washington Division of Geology
and Earth Resources, Map Series 2015-03, scale 1:100,000.
WSDOT, 2018, Standard Specifications for Road, Bridge and Municipal Construction, M
41-10.
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Figure No.Project No.19-122
Proposed Retail Development
Benson Drive South and
Southeast Petrovitsky Road
Renton, WA 1
Base Map: Google Maps
VICINITY MAP
Approx. Scale:
Not to Scale
19-122 Fig 1 - Vicinity Map.grf 4/30/19 (14:00) SPS
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Project No. Figure No.
SITE AND EXPLORATION PLAN
19-122 219
-
1
2
2
F
i
g
2
S
i
t
e
&
E
x
p
l
o
r
a
t
i
o
n
P
l
a
n
.
g
r
f
5
/
9
/
1
9
S
P
S
LEGEND:
Approx. Scale
(feet)
Note: Site plan modified from ALTA/NSPS Land Title Survey, prepared by Terrane dated January 11, 2019
Proposed Retail Development
Benson Drive South and
Southeast Petrovitsky Road
Renton, WA
Approximate Boring Locations,
PanGEO, Inc., April 2019
(Approximate Thickness of Fill)
Approximate Proposed
Developments
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APPENDIX A
BORING LOGS
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MOISTURE CONTENT
2-inch OD Split Spoon, SPT
(140-lb. hammer, 30" drop)
3.25-inch OD Spilt Spoon
(300-lb hammer, 30" drop)
Non-standard penetration
test (see boring log for details)
Thin wall (Shelby) tube
Grab
Rock core
Vane Shear
Dusty, dry to the touch
Damp but no visible water
Visible free water
Terms and Symbols for
Boring and Test Pit Logs
Density
SILT / CLAY
GRAVEL (<5% fines)
GRAVEL (>12% fines)
SAND (<5% fines)
SAND (>12% fines)
Liquid Limit < 50
Liquid Limit > 50
Breaks along defined planes
Fracture planes that are polished or glossy
Angular soil lumps that resist breakdown
Soil that is broken and mixed
Less than one per foot
More than one per foot
Angle between bedding plane and a planenormaltocoreaxis
Very Loose
Loose
Med. Dense
Dense
Very Dense
SPT
N-values
Approx. Undrained Shear
Strength (psf)
<4
4 to 10
10 to 30
30 to 50
>50
<2
2 to 4
4 to 8
8 to 15
15 to 30
>30
SPT
N-values
Units of material distinguished by color and/orcomposition frommaterial unitsabove andbelow
Layers of soil typically 0.05 to 1mm thick, max. 1 cm
Layer of soil that pinches out laterally
Alternating layers of differing soil material
Erratic, discontinuous deposit of limited extent
Soil with uniform color and composition throughout
Approx. Relative
Density (%)
Gravel
Layered:
Laminated:
Lens:
Interlayered:
Pocket:
Homogeneous:
Highly Organic Soils
#4 to #10 sieve (4.5 to 2.0 mm)
#10 to #40 sieve (2.0 to 0.42 mm)
#40 to #200 sieve (0.42 to 0.074 mm)
0.074 to 0.002 mm
<0.002 mm
UNIFIED SOIL CLASSIFICATION SYSTEM
MAJOR DIVISIONS GROUP DESCRIPTIONS
Notes:
MONITORING WELL
<15
15 - 35
35 - 65
65 - 85
85 - 100
GW
GP
GM
GC
SW
SP
SM
SC
ML
CL
OL
MH
CH
OH
PT
TEST SYMBOLS
50%or more passing #200 sieve
Groundwater Level at time of drilling (ATD)Static Groundwater Level
Cement / Concrete Seal
Bentonite grout / seal
Silica sand backfill
Slotted tip
Slough
<250
250 - 500
500 - 1000
1000 - 2000
2000 - 4000
>4000
RELATIVE DENSITY / CONSISTENCY
Fissured:
Slickensided:
Blocky:
Disrupted:
Scattered:
Numerous:
BCN:
COMPONENT DEFINITIONS
Dry
Moist
Wet
1. Soil exploration logs contain material descriptions based on visual observation and field tests using a systemmodified from the Uniform Soil Classification System (USCS). Where necessary laboratory tests have beenconducted (as noted in the "Other Tests" column), unit descriptions may include a classification. Please refer to thediscussions in the report text for a more complete description of the subsurface conditions.
2. The graphic symbols given above are not inclusive of all symbols that may appear on the borehole logs.Other symbols may be used where field observations indicated mixed soil constituents or dual constituent materials.
COMPONENT SIZE / SIEVE RANGE COMPONENT SIZE / SIEVE RANGE
SYMBOLS
Sample/In Situ test types and intervals
Silt and Clay
Consistency
SAND / GRAVEL
Very Soft
Soft
Med. Stiff
Stiff
Very Stiff
Hard
Phone: 206.262.0370
Bottom of BoringBoulder:
Cobbles:
Gravel
Coarse Gravel:
Fine Gravel:
Sand
Coarse Sand:
Medium Sand:
Fine Sand:
Silt
Clay
> 12 inches
3 to 12 inches
3 to 3/4 inches
3/4 inches to #4 sieve
Atterberg Limit Test
Compaction Tests
Consolidation
Dry Density
Direct Shear
Fines Content
Grain Size
Permeability
Pocket Penetrometer
R-value
Specific Gravity
Torvane
Triaxial Compression
Unconfined Compression
Sand
50% or more of the coarsefraction passing the #4 sieve.Use dual symbols (eg. SP-SM)for 5% to 12% fines.
for In Situ and Laboratory Testslisted in "Other Tests" column.
50% or more of the coarsefraction retained on the #4sieve. Use dual symbols (eg.GP-GM) for 5% to 12% fines.
DESCRIPTIONS OF SOIL STRUCTURES
Well-graded GRAVEL
Poorly-graded GRAVEL
Silty GRAVEL
Clayey GRAVEL
Well-graded SAND
Poorly-graded SAND
Silty SAND
Clayey SAND
SILT
Lean CLAY
Organic SILT or CLAY
Elastic SILT
Fat CLAY
Organic SILT or CLAY
PEAT
ATT
Comp
Con
DD
DS
%F
GS
Perm
PP
R
SG
TV
TXC
UCC
LO
G
KE
Y
09
-
1
1
8
LO
G
.
G
P
J
P
A
N
G
E
O
.
G
D
T
11
/12
/1
3
Figure A-1
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Terms and Symbols for
Boring and Test Pit Logs
Phone: 206.262.0370LO
G
KE
Y
09
-
1
1
8
LO
G
.
G
P
J
P
A
N
G
E
O
.
G
D
T
11
/12
/1
3
Figure A-1a
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 4 inches of asphalt over gravel.
Medium dense, moist, brown, silty SAND; trace gravel and cobbles.
[FILL].
- Inflated blows due to cobble at approximately 2.5 feet.
Medium dense to dense, wet to very moist, grey brown to light brown,
silty fine SAND; trace gravel, trace iron-oxide staining.
- Groundwater at approximately 5 feet during drilling.
[WEATHERED VASHON TILL - Qgt].
Hard, very moist to moist, grey-brown to blue-grey, sandy SILT; trace
gravel, trace iron oxide staining in fragments.
- Relative Weathering: Residual Soil RVI.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Slightly Weathered RII.
Boring terminated at about 13.5 feet below grade. Groundwater
observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
31
22
24
8
9
9
19
32
50/6
19
41
50/2
45
50/6
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-2
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
13.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 404 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-1
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
>>
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 5 inches of asphalt over gravel.
Medium dense, moist, brown, silty SAND; trace gravel.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 4 feet.
Medium dense, wet to very moist, blue-grey, silty fine SAND; tracegravel.
- Hydrocarbon odor in Sample S-2.
Very dense, moist, light brown, silty fine SAND; trace gravel, trace
iron-oxide staining in gravel.
- Perched groundwater at approximately 11 feet.
Hard, moist, light grey, sandy SILT; trace gravel, laminated, traceiron-oxide staining.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
- Coarse sand pocket at approximately 13 feet.
Boring terminated at about 13.3 feet below grade. Perched
groundwater observed at about 4 feet and 11 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
8
8
7
4
4
7
18
23
34
24
25
50/5
37
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-3
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
13.3ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 402 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-2
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 6 inches of topsoil, concrete rubble near surface.
Medium dense, very moist to wet, brown to grey-brown, silty fine tomedium SAND; trace gravel, iron-oxide staining.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 6 feet.
Hard, moist, light grey, sandy SILT; trace gravel, laminated.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Sand-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 15.9 feet below grade. Perchedgroundwater observed at about 6 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
2
6
11
5
7
10
7
12
13
4
6
10
31
50/3
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-4
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.9ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 408 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-3
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 6 inches of topsoil, concrete rubble near surface.
Medium dense, very moist, grey to light brown, silty fine to mediumSAND; trace gravel.
[WEATHERED VASHON TILL - Qgt].
Medium dense to dense, very moist to wet, brown to grey-brown, silty
fine SAND with gravel; trace coarse sand pockets, laminated,iron-oxide staining in gravels.
- Perched groundwater at approximately 9 feet.
Boring terminated at about 11.5 feet below grade. Perched
groundwater observed at about 9 feet at time of drilling.
S-1
S-2
S-3
S-4
2
9
12
8
7
7
8
6
6
9
15
32
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-5
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 408 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-4
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 5 inches of asphalt over gravel.
Very loose, moist, grey to orange-brown, GRAVEL with silt; traceiron-oxide staining.
[FILL].
Medium dense, very moist to wet, light brown to light-grey, silty fine
SAND; trace gravel, coarse sand pockets.
- Perched groundwater at approximately 5 feet.
[WEATHERED VASHON TILL - Qgt].
Hard, moist, grey-brown, sandy SILT; trace gravel, iron-oxide stainingin gravel.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Sand-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 11.5 feet below grade. Perchedgroundwater observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
3
1
3
6
6
7
5
6
8
17
20
22
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-6
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 407 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-5
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 2 inches of asphalt over gravel.
Very loose, moist, grey to grey-brown, silty SAND; trace gravel, traceiron-oxide staining.
[WEATHERED VASHON TILL - Qgt].
- Manganese staining.
Medium dense, very moist to wet, grey-brown, silty SAND; trace
gravel, trace iron-oxide staining, slightly laminated.
- Perched groundwater at approximately 6 feet.
Very dense, moist, grey-brown, silty SAND; trace gravel, trace
iron-oxide staining in gravel.
- Large gravel crushed in tip of splitspoon at approximately 10 feet.
Boring terminated at about 11.5 feet below grade. Perched
groundwater observed at about 6 feet at time of drilling.
S-1
S-2
S-3
S-4
4
1
3
6
11
16
31
28
50/5
23
36
36
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-7
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 410 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-6
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 4 inches of asphalt over gravel.
Medium dense, moist, dark grey to brown, silty SAND; trace gravel.
[FILL].
Medium dense, very moist to wet , grey-brown, silty fine to medium
SAND; trace gravel, coarse sand pockets, trace iron-oxide staining,slightly laminated.
- Perched groundwater at approximately 5 feet.
[WEATHERED VASHON TILL - Qgt].
Hard, very moist to moist, grey-brown to grey, sandy SILT with gravel;iron-oxide staining in gravel, slightly laminated.
- Relative Weathering: Residual Soil RVI.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Highly Weathered RIV.
Boring terminated at about 15.8 feet below grade. Perchedgroundwater observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
8
9
8
5
10
9
5
12
10
14
19
27
29
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-8
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.8ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 409 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-7
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 5 inches of asphalt over gravel.
Medium dense, moist, grey to grey-brown, silty fine to medium SAND;trace gravel, iron-oxide staining, appears reworked.
[FILL].
Medium dense, very moist to wet, grey-brown, silty fine to medium
SAND; trace gravel, trace coarse sand pockets, trace iron-oxidestaining, slightly laminated.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 6 feet.
- Perched groundwater at approximately 10 feet.
Hard, very moist, grey-brown to grey, sandy SILT with gravel; trace
coarse sand pockets.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 15.8 feet below grade. Perched
groundwater observed at about 6 feet and 10 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
7
11
14
8
6
6
10
10
10
5
6
6
30
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-9
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.8ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 411 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-8
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
PROPOSED DETENTION
VAULT
CB #1, TYPE 1
RIM=404.73
IE 12"∅=401.73 (E)
CB #2, TYPE 1
RIM=405.27
IE 12"∅=401.55 (W,S)
CB #4, TYPE 1
RIM=404.23
IE 12"∅=399.33 (W,E)
CB #6, TYPE 1
RIM=401.78±
IE 12"∅=397.16± (S,E,N) (IE PER GIS)69 LF 12"∅ ADS N-12 @ 0.5% MIN
47 LF 12"∅ ADS N-12@0.5% MIN
12 LF 12"∅ ADS N-12 @ 0.5% MIN
92 LF 12"∅ ADS N-12 @ 0.5% MIN
TRENCH DRAIN
OIL WATER
SEPARATOR
44 LF 12"∅ ADS N-12 @ 0.5% MIN
CB #3, TYPE 2 48"∅
RIM=404.81
IE 12"∅=399.09 (N,W,E,S)
CB #5, TYPE 1
RIM=402.69
IE 12"∅=399.69 (E)
33 LF 12"∅ ADS N-12 @ 0.5% MIN
73 LF 12"∅ ADS N-12@0.5% MIN
RIGHT OF WAY
DEDICATION
RIGHT OF WAY
DEDICATION
PR
E
L
I
M
I
N
A
R
Y
1 INCH = 20 FEET (22"x34")
GRAPHIC SCALE
40200
1 INCH = 40 FEET (11"x17")
PR
E
L
I
M
I
N
A
R
Y
D
R
A
I
N
A
G
E
CO
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DE
S
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DA
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BY
CO
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T
:
SH
E
E
T
T
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E
:
CL
I
E
N
T
:
REV.
WMRTS
DESIGNER:
ENGINEER:
DRAWN:
DATE:
REVISED:
PROJECT:
DWG NAME:
SHEET
OF
Ph
o
n
e
:
2
5
3
-
8
5
7
-
5
4
5
4
~
F
a
x
:
2
5
3
-
5
0
9
-
0
0
4
4
~
i
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c
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:
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9
8
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:
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S
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1
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3
2
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~
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K
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&
A
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S
,
L
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C
26
0
0
D
A
L
L
A
S
P
A
R
K
W
A
Y
,
S
U
I
T
E
3
7
0
FR
I
S
C
O
,
T
E
X
A
S
7
5
0
3
4
MI
C
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L
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W
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W
A
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PH
O
N
E
:
(4
6
9
)
4
5
8
-
0
4
8
5
BENSON-PETROVITSKY
A PORTION OF SECTION 29, TOWNSHIP 23, RANGE 05, W.M.,
CITY OF RENTON, KING COUNTY, WASHINGTON
J. RAUSCH
B. ALLEN
J. RAUSCH
29 23 N 03 E
2022.10.25
19-045
19-045-C
C2
2 4
CALL 811 AT LEAST 48
HOURS BEFORE YOU DIG
VERIFICATION NOTE
ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE
IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY
CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS
WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER
IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED.
PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING
TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF
THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION
ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY
CONFLICTS ARE IDENTIFIED.
DETENTION VAULT NOTES
UNDERGROUND DETENTION VAULT WILL BE DESIGNED WITH PAVEMENT
SURFACE SO TO MEET OR EXCEED THE LOADING REQUIREMENTS OF FIRE
TRUCKS AND APPARATUS.
PUMP SYSTEM WILL BE DESIGNED TO MATCH STREAM DURATION FLOW RATES.
VAULT STATISTICS:
VAULT BOTTOM ELEVATION:394.00'
TOP OF SEDIMENT STORAGE:394.50'
DESIGN WATER SURFCE:401.50' (7' LIVE STORAGE)
VAULT INSIDE TOP ELEVATION:402.00' (0.5' FREEBOARD)
VAULT STORAGE VOLUME @401.50:27,000 CF
CONTROL STRUCTURE STATISTICS
TOP OF RISER ELEVATION:401.50
RISER DIAMETER:18"
RESTRICTOR PLATE ORIFICE DIAMETER:0.6"
RESTRICTOR PLATE ORIFICE HEIGHT:394.50
ORIFICE #2 DIAMETER:0.25"
ORIFICE #2 HEIGHT:397.50
ORIFICE #3 DIAMETER:0.125"
ORIFICE #3 HEIGHT:399.50
OUTLET CONTROL STRUCTURE
BAYFILTER WATER QUALITY DEVICE
2-CHAMBER PUMP SYSTEM
DETENTION VAULT
27,000 CF LIVE STORAGE
50.0'
78
.
0
'
EX. 12" STORM MAIN
EXHIBIT 9
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
EXISTING WATER MAIN
EX. 8" SANITARY SEWER MAIN
EXISTING FIRE HYDRANT
NEEDS TO BE RELOCATED
EXISTING WATER MAIN
PROPOSED SIDE
SEWER CONNECTION
PROPOSED WATER SERVICE
PROPOSED WATER
SERVICE
PROPOSED SIDE
SEWER CONNECTION
RELOCATED
FIRE HYDRANT
PR
E
L
I
M
I
N
A
R
Y
1 INCH = 20 FEET (22"x34")
GRAPHIC SCALE
40200
1 INCH = 40 FEET (11"x17")
GE
N
E
R
A
L
I
Z
E
D
U
T
I
L
I
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Y
P
L
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DE
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CO
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T
:
SH
E
E
T
T
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L
E
:
CL
I
E
N
T
:
REV.
WMRTS
DESIGNER:
ENGINEER:
DRAWN:
DATE:
REVISED:
PROJECT:
DWG NAME:
SHEET
OF
Ph
o
n
e
:
2
5
3
-
8
5
7
-
5
4
5
4
~
F
a
x
:
2
5
3
-
5
0
9
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4
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:
(4
6
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4
5
8
-
0
4
8
5
BENSON-PETROVITSKY
A PORTION OF SECTION 29, TOWNSHIP 23, RANGE 05, W.M.,
CITY OF RENTON, KING COUNTY, WASHINGTON
J. RAUSCH
B. ALLEN
J. RAUSCH
29 23 N 03 E
2022.10.25
19-045
19-045-C
C4
4 4
CALL 811 AT LEAST 48
HOURS BEFORE YOU DIG
VERIFICATION NOTE
ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE
IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY
CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS
WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER
IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED.
PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING
TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF
THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION
ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY
CONFLICTS ARE IDENTIFIED.
EXHIBIT 7
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
GRADE BREAK
GRADE BREAK
GRADE BREAK
2.
0
0
%
2.
0
0
%
CHASE BANK
FF=406.00 7-11 STORE
FF=407.15
RIGHT OF WAY
DEDICATION
RIGHT OF WAY
DEDICATION
410
404
4
0
6
4
0
8
406
408
408
40
6
4
0
6
4
0
8
402.69 404.23 404.81
405.27
404.73
402.81 403.46 404.72404.70
404.82405.02
405.68
405.45
405.27
405.94
406.52406.31
406.49 407.00
407.08
406.09
407.49
407.74 407.81 408.14 408.26
405.98 406.13
406.18 406.29 406.84
406.64 406.91
407.11 407.73
407.63
407.55
408.15
408.03
407.72
407.76 407.94
409.07408.77
408.77
409.28407.89
407.58
407.51407.47
407.46
407.51
407.64407.30
407.10
406.83406.74
405.71
405.83
406.45
406.34406.59
405.81
405.53
405.53
405.48
405.28
404.91
404.51
405.03
405.71405.25
405.75
408.11407.51406.41
407.13
407.13
406.03
406.03
407.88
407.49
405.91 405.71
406.00
407.01
PR
E
L
I
M
I
N
A
R
Y
1 INCH = 20 FEET (22"x34")
GRAPHIC SCALE
40200
1 INCH = 40 FEET (11"x17")
CO
N
C
E
P
T
U
A
L
G
R
A
D
I
N
G
EL
E
V
A
T
I
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N
S
A
N
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P
L
A
N
DE
S
C
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T
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V
I
S
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BY
CO
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T
A
C
T
:
SH
E
E
T
T
I
T
L
E
:
CL
I
E
N
T
:
REV.
WMRTS
DESIGNER:
ENGINEER:
DRAWN:
DATE:
REVISED:
PROJECT:
DWG NAME:
SHEET
OF
Ph
o
n
e
:
2
5
3
-
8
5
7
-
5
4
5
4
~
F
a
x
:
2
5
3
-
5
0
9
-
0
0
4
4
~
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BENSON-PETROVITSKY
A PORTION OF SECTION 29, TOWNSHIP 23, RANGE 05, W.M.,
CITY OF RENTON, KING COUNTY, WASHINGTON
J. RAUSCH
B. ALLEN
J. RAUSCH
29 23 N 03 E
2022.10.25
19-045
19-045-C
C3
3 4
CALL 811 AT LEAST 48
HOURS BEFORE YOU DIG
VERIFICATION NOTE
ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE
IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY
CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS
WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER
IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED.
PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING
TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF
THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION
ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY
CONFLICTS ARE IDENTIFIED.
EXHIBIT 8
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
PRELIMINARY TECHNICAL
INFORMATION REPORT
FOR
BENSON-PETROVITSKY
REDVELOPMENT
CITY OF RENTON, KING COUNTY, WASHINGTON
AUGUST 2022
Prepared For:
TA Acquisitions LLC2600 N Dallas Parkway, Ste 370
Frisco, TX 75034
Prepared By:James Rausch,E.I.T., Design Engineer
Approved By:
Brett M. Allen, P.E., Principal EngineerPO Box 949
Gig Harbor, WA 98335
(253) 857-5454
Project #19-045
I hereby state that this Technical Information Report for Benson-Petrovitsky Redevelopment has been prepared by me or under my
supervision and meets the standard of care and expertise that is usual and customary in this community of professional engineers.
I understand that the City of Renton does not and will not assume liability for the sufficiency, suitability or performance of drainage
facilities prepared by Contour Engineering LLC.This analysis is based on data and records either supplied to, or obtained by,
Contour Engineering, LLC. These documents are referenced within the text of the analysis. The analysis has been prepared
utilizing procedures and practices within the standard accepted practices of the industry.
EXHIBIT 11
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
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TABLE OF CONTENTS
PAGE
1.0 PROJECT OVERVIEW..................................................................................................................................2
1.1 PURPOSE AND SCOPE......................................................................................................................................2
1.2 PROJECT DESCRIPTION ...................................................................................................................................2
1.3 EXISTING CONDITIONS SUMMARY..................................................................................................................3
1.4 DEVELOPED CONDITIONS ...............................................................................................................................4
2.0 CONDITIONS AND REQUIREMENTS SUMMARY...............................................................................5
3.0 OFFSITE ANALYSIS (LEVEL 2 DOWNSTREAM).................................................................................7
3.1 DEFINE AND MAP STUDY AREA .....................................................................................................................7
3.2 REVIEW ALL AVAILABLE INFORMATION OF THE STUDY AREA......................................................................7
3.3 FIELD INSPECT THE STUDY AREA...................................................................................................................7
3.4 EXISTING AND PREDICTED DRAINAGE AND WATER QUALITY ISSUES ............................................................7
4.0 FLOW CONTROL, LOW IMPACT DEVELOPMENT (LID) AND WATER QUALITY FACILITY
ANALYSIS AND DESIGN........................................................................................................................................8
4.1 EXISTING SITE HYDROLOGY...........................................................................................................................8
4.2 DEVELOPED SITE HYDROLOGY ......................................................................................................................8
4.3 PERFORMANCE STANDARDS...........................................................................................................................8
4.4 FLOW CONTROL SYSTEM................................................................................................................................8
4.5 WATER QUALITY SYSTEM..............................................................................................................................9
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN..............................................................................9
6.0 SPECIAL REPORTS AND STUDIES .........................................................................................................9
7.0 OTHER PERMITS..........................................................................................................................................9
8.0 CSWPP PLAN ANALYSIS AND DESIGN ................................................................................................9
9.0 BOND QUANTITIES, FACILITY SUMMARIES & DECLARATION OF COVENANT.....................9
10.0 OPERATIONS AND MAINTENANCE MANUAL .................................................................................9
Appendix A General Exhibits
Appendix B Downstream Analysis
Appendix C Flow Control and Water Quality Calculations
Appendix D Geotechnical Report (By PanGEO)
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1.0 PROJECT OVERVIEW
1.1 Purpose and Scope
This Preliminary Technical Information Report accompanies the Benson-Petrovitsky
redevelopment preliminary site plan review application.The site is located at 12055 Slater
Avenue NE in Kirkland, Washington and is located within the northwest quarter of Section
28, Township 26 North, Range 5 East, W.M.See Appendix A for Vicinity Map.
The 2022 City of Renton Surface Water Design Manual,(RSWDM)establishes the
design methodology and design criteria used for this project.
1.2 Project Description
The proposed project includes the construction of a Chase Bank and 7-Eleven gas station.
The proposed Chase Bank is approximately 2,850 SF of floor space.The proposed 7-
Eleven is approximately 4,088 SF of floor space.The project will include new curb and
gutter, sidewalks,illumination, and lane widening along the frontage of Benson DR S and
SE Petrovitsky RD
Currently, stormwater is being collected and conveyed in a series of catch basins and
discharged directly offsite from the subject property with no mitigation.To meet flow
control requirements, a detention vault with a storage volume of approximately 27,000
CF is proposed under the parking lot.
The following is a description of pertinent site information associated with the proposed
project:
Site Address –17426 Benson Dr S, Renton, WA 98055
Parcel Number –2923059110, 2923059095, 2923059017
Site Area –73,002 SF (Prior to ROW dedications), 63,843 SF (Post)
Zoning –CA, Commercial Arterial
Maps and exhibits of the site location can be found in Appendix A.
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1.3 Existing Conditions Summary
Pre-Developed Conditions
The site is developed and currently includes a disused towing facility, abandoned fire
station, and associated paved parking and storage lots.There is no existing on-site
detention system under the current condition.
Topography
The site generally slopes down from southeast to northwest --SE Petrovitsky Rd is
sloping down from east to west, and Benson Dr S is sloping down from south to north,
around the subject parcels. Slopes onsite generally range from 2-5% in the parking
areas.
Groundcover
There is little vegetation on the developed portions of the parcels –but there is a clump
of trees in the areas between parking lots.
Soils
The USDA Natural Resource Conservation Service (NRCS) Web Soil Survey indicates that
the site is underlain by Arents Alderwood Material,6 to 15 percent slopes (AmC). This
gravelly sandy loam is moderately well drained.See Appendix A for a copy of the NRCS
Web Soil Survey map for the site area.
Per the geotechnical report prepared by PanGEO, the native soils under the site consist
of Vashon till –a dense composite of clay, silt, sand, and gravel. PanGEO recommends
alternative stormwater solutions from infiltration due to these soils. See Appendix D for
the geotechnical report.
Adjacent Land Uses
The site is bounded as follows:
North:Commercial buildings (incl church and lodgings)
South:SE Petrovitsky Road
East:Commercial buildings
West:Benson Drive S
Drainage Patterns
Currently, stormwater is being collected and discharged to the public storm mains in
Benson Dr S and SE Petrovitsky RD. It is conveyed in the city system northwest beyond
the site.
Critical and Sensitive Areas
The site does not have any known critical or sensitive areas.
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1.4 Developed Conditions
Developed Site Description
The developed site will consist of a covered gas fueling island, 7-Eleven, and Chase Bank
with associated parking and drive aisles, as well as widened frontage features with
sidewalks and street illumination.Stormwater will runoff from impervious frontage
features and be tightlined to or collected by catch basins on-site, which will be directed
to an 8’ detention vault with a volume of 27,000 CF. The stormwater will then be routedthrough a water quality device and pump system, before being discharged off-site intoBenson Drive S.
Surface Coverage Type Area
Total Developed Parcel Area:63,843 SF (1.465 AC)
Proposed Roof Area 9,144 SF
Proposed Sidewalk Area:4,841 SF
Pavement Area:33,720 SF
Pervious Area:16,138 SF
The site meets the requirements for a ‘Full Drainage Review’ and Flow Control BMPs have
been implemented as feasible and applicable to the site based on the existing site
constraints of the parcel size/shape, topography and native soils.
This project is required to implement Flow Control BMP’s per the Large Lot BMPRequirements. Below is the list of BMP’s which are required to be assessed –infeasibilitycriteria is presented for all of these BMP’s.
1.Full Dispersion is infeasible due to the required impervious area to be dispersedbeing over the 15% of the site.
2.Infiltration BMP’s are infeasible due to the underlying native soils on site –per the
geotechnical report by PanGEO, the site soils are comprised of Vashon Till, and
cannot support infiltration BMP’s.
3.Basic dispersion is infeasible for this site due to a lack of any location with which
to disperse on-site.
Therefore, the proposed runoff is being delivered to the city conveyance system via atightlined pipe system. Flow control is being provided by an on-site detention system.
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2.0 CONDITIONS AND REQUIREMENTS SUMMARY
According to Figure 1.1.2.A in the 202 RSWDM, the project will be subjected to a Full
Drainage Review. Projects subject to full drainage review are required to demonstrate
that they are compliant with all nine core requirements discussed in Section 1.2 of the
2022 RSWDM and all five special requirements in Section 1.3 of the 2022 RSWDM.
Core Requirement #1 Discharge at a natural location
The existing stormwater drainage discharge locations will be maintained.
Core Requirement #2 Offsite Analysis
The drainage system of this property will not be impacted by offsite flows –all offsite
flows are being routed around the on-site stormwater management system. Offsite
analysis is presented in 3.0 Offsite Analysis (Level 1 Downstream)
Core Requirement #3 Flow Control
Flow control is provided by a detention vault with a combined volume of 27,000 CF. See
4.4 Flow Control System for more information.
Core Requirement #4 Conveyance System
Conveyance analysis will be provided with the final TIR.
Core Requirement #5 Erosion and Sediment Control
A Construction Stormwater Pollution Prevention Plan (CSWPPP) is included with this
submittal and is under a separate cover.
Core Requirement #6 Maintenance and Operations
An On-site Stormwater Management Operations and Maintenance Manual is included in
this submittal and is provided under a separate cover.This system will be privately
maintained.
Core Requirement #7 Financial Guarantees and Liability
Does not apply for this project.
Core Requirement #8 Water Quality
This project is in the basic water quality treatment area, but is fully commercial uses.
Therefore, the enhanced water quality treatment menu is used. A modular wetland is
proposed post-detention to provide enhanced treatment.See Section 4.5 Water
Quality System for more info.
Core Requirement #9 Flow Control BMPs
Flow control BMP’s are not implemented for this project –A detention vault has been
designed for detain and release flow control.
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Special Requirement #1 Other Adopted Area-Specific Requirements
No other area-specific requirements are identified.
Special Requirement #2 Floodplain/Floodway Analysis
No flood hazard areas are located on or adjacent to the project site.
Special Requirement #3 Flood Protection Facilities
No flood protection facilities are proposed or required.
Special Requirement #4 Source Control
Source control BMP’s will be implemented as detailed in the O&M Manual, to be
provided with the final SSP.
Special Requirement #5 Oil Control
Oil control is not required for this project, but an oil-water separator is provided for the
runoff from the fuel pumps.
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3.0 OFFSITE ANALYSIS (LEVEL 2 DOWNSTREAM)
3.1 Define and Map Study Area
The parcel contains an underground storm drainage system that collects and conveys
stormwater runoff from the existing buildings and parking lot off-site to the south, to the
storm system in SE Petrovitsky RD. From there, it travels north along Benson DR S, and
then along SE 174th Street. It is conveyed until it is discharged into a forested area on
Parcel 810630TR-B per City of Renton GIS.This forested parcel is approximately 2,000
feet (0.38 miles) downstream from the site.
3.2 Review All Available Information of the Study Area
All available information regarding existing and potential water quality, runoff volumes
and rates, flooding and stream bank erosion problems within the study area have been
reviewed.Reviewed material included NRSC soil information,and City of Renton GIS.
See Appendix A for the delineated study area.
3.3 Field Inspect the Study Area
The field inspection of the site was conducted on 8/4/2022. There were no recognizable
issues with the roadway drainage systems, and any birdcage manholes found along the
way appeared to be free of debris and clogging. The downstream path was tracked
from the project site to parcel 810630TR-B and appears fully functional.
3.4 Existing and Predicted Drainage and Water Quality Issues
There are no predicted downstream drainage concerns. Enhanced treatment and oil
control is being provided on site, but there are no known water quality concerns in the
city system.
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4.0 FLOW CONTROL,LOW IMPACT DEVELOPMENT (LID)AND WATER
QUALITY FACILITY ANALYSIS AND DESIGN
4.1 Existing Site Hydrology
The parcel contains an underground storm drainage system that collects and conveys
stormwater runoff from the existing buildings and parking lot off-site to the south, to the
storm system in SE Petrovitsky RD. From there, it travels north along Benson DR S, and
then along SE 174th Street. It is conveyed until it is discharged into a forested area on
Parcel 810630TR-B per City of Renton GIS.This forested parcel is approximately 2,000
feet (0.38 miles) downstream from the site.
4.2 Developed Site Hydrology
See Section 1.4,Developed Conditions. See also the Plan Exhibits in Appendix B.
4.3 Performance Standards
The 2022 City of Renton Surface Water Design Manual established the methodology
and design criteria used for this project.
4.4 Flow Control System
A detention vault with a volume of 27,000 CF is proposed for this project.It is located
under the parking lot in front of the proposed Chase Bank.It discharges to the city
storm system via a pump system.See the design information for this vault below.
Stormwater Vault
Vault Bottom Elevation =394.00
Top of Sediment Storage =394.50
Design Water Surface =401.50 (7’depth)
Vault Inside Top Elevation =402.00 (0.5’ freeboard)
Vault Design Storage Volume (@401.50)=27,000 CF
Control Structure
Top of Riser Elev.=401.50
Riser Diameter = 18”
Restrictor Plate Orifice Diameter = 0.6”
Restrictor Plate Orifice Height = 394.50
Orifice #2 Diameter =0.25”
Orifice #2 Height = 397.50
Orifice #3 Diameter = 0.125”
Orifice #3 Height = 399.50
See Appendix C for WWHM calculations associated with the detention vault.
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4.5 Water Quality System
Basic treatment is required for this project.Basic treatment is being provided for the
stormwater being discharged from the detention vault by one Bayfilter water quality
system.Since water quality is proposed downstream from detention,the full 2-year
release rate from the detention facility from WWHM is being utilized to size the facility.
The two year release rate is 0.02 CFS –so a treatment rate of 8.976 GPM is required.
One Bayfilter 522 cartridge has the capacity for 22.5 GPM treatment, so one cartridge is
fulfilling this requirement.
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN
A downstream conveyance system analysis has been conducted and is included inSection 3.0 Offsite Analysis
6.0 SPECIAL REPORTS AND STUDIES
No special reports or studies are required for this project.
7.0 OTHER PERMITS
A demolition permit will be required for the existing improvements.
8.0 CSWPP PLAN ANALYSIS AND DESIGN
The full submittal will include CSWPPP and TESC plans meeting this requirement.
9.0 BOND QUANTITIES,FACILITY SUMMARIES &DECLARATION OF
COVENANT
Bond quantities are not required for this project.
10.0 OPERATIONS AND MAINTENANCE MANUAL
The full submittal will include an Operations and Maintenance Manual is included with
this submittal.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
APPENDIX A
General Exhibits
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Soil Map—King County Area, Washington
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
8/2/2022
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Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84
0 35 70 140 210
Feet
0 10 20 40 60
Meters
Map Scale: 1:734 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
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MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: King County Area, Washington
Survey Area Data: Version 17, Aug 23, 2021
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Jul 25, 2020—Jul 27,
2020
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Soil Map—King County Area, Washington
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
8/2/2022
Page 2 of 3
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Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
AmB Arents, Alderwood material, 0
to 6 percent slopes
0.4 17.8%
AmC Arents, Alderwood material, 6
to 15 percent slopes
1.9 82.2%
Totals for Area of Interest 2.3 100.0%
Soil Map—King County Area, Washington
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
8/2/2022
Page 3 of 3
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King County Area, Washington
AmC—Arents, Alderwood material, 6 to 15 percent slopes
Map Unit Setting
National map unit symbol: 1hmsq
Elevation: 50 to 660 feet
Mean annual precipitation: 35 to 60 inches
Mean annual air temperature: 50 degrees F
Frost-free period: 150 to 200 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Arents, alderwood material, and similar soils:100 percent
Estimates are based on observations, descriptions, and transects of
the mapunit.
Description of Arents, Alderwood Material
Setting
Landform:Till plains
Parent material:Basal till
Typical profile
H1 - 0 to 26 inches: gravelly sandy loam
H2 - 26 to 60 inches: very gravelly sandy loam
Properties and qualities
Slope:6 to 15 percent
Depth to restrictive feature:20 to 40 inches to densic material
Drainage class:Moderately well drained
Capacity of the most limiting layer to transmit water (Ksat):Very low
to moderately low (0.00 to 0.06 in/hr)
Depth to water table:About 16 to 36 inches
Frequency of flooding:None
Frequency of ponding:None
Available water supply, 0 to 60 inches: Very low (about 2.3 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4s
Hydrologic Soil Group: B/D
Hydric soil rating: No
Data Source Information
Soil Survey Area: King County Area, Washington
Survey Area Data: Version 17, Aug 23, 2021
Map Unit Description: Arents, Alderwood material, 6 to 15 percent slopes---King County Area,
Washington
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
8/2/2022
Page 1 of 1
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
10
'
-
0
"
F
U
L
L
Y
L
A
N
D
S
C
A
P
E
B
U
F
F
E
R
9
7
5
7
6
c
10
c
c
c
c
c
ALTERNATE TANK
LOCATION
PR
O
P
O
S
E
D
P
R
O
P
.
L
I
N
E
4 ISLAND STACKED36' X 53' CANOPY
3+1DSL 3+1DSL
GRAPHIC SCALE
1 INCH = 50 FEET (8.5x11)
0 25 50 100
PHYSICAL ADDRESS: 4706 97TH ST NW, SUITE 100
GIG HARBOR, WA 98332
MAILING ADDRESS: P.O. BOX 949,
GIG HARBOR, WA 98335
PHONE: (253) 857-5454
EXHIBIT NO.
DATE:
PROJECT:
DRAWN BY:J. RAUSCH
19-045
2022.08.02
1
BASIN MAP
BENSON & PETROVITSKY
CITY OF RENTON, KING COUNTY, WASHINGTON
BASIN AREAS
PAVEMENT AREA=33,720 SF
ROOF AREA=9,144 SF
SIDEWALK AREA=4,841 SF
PERVIOUS AREA=16,138 SF
TOTAL SITE AREA=63,843 SF
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
APPENDIX B
Downstream Analysis
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
9,028
752
WGS_1984_Web_Mercator_Auxiliary_Sphere
City of Renton Print map Template
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable.
THIS MAP IS NOT TO BE USED FOR NAVIGATION
Notes
None
Legend
512 0 256 512 Feet
Information Technology - GIS
RentonMapSupport@Rentonwa.gov
08/08/2022
City and County Labels
Parcels
City and County Boundary
<all other values>
Renton
Water Gravity Pipe
Water Main
Water Main - Other System
Pump Station
Discharge Point
Surface Water Main
Culvert
Open Drains
Facility Outline
Streets
Parks
Waterbodies
2021.sid
Red: Band_1
Green: Band_2
Blue: Band_3
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
APPENDIX C
Flow Control and Water Quality Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
WWHM2012
PROJECT REPORT
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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General Model Information
Project Name:19-045-Detention
Site Name:
Site Address:
City:
Report Date:8/4/2022
Gage:Seatac
Data Start:1948/10/01
Data End:2009/09/30
Timestep:15 Minute
Precip Scale:1.000
Version Date:2021/08/18
Version:4.2.18
POC Thresholds
Low Flow Threshold for POC1:50 Percent of the 2 Year
High Flow Threshold for POC1:50 Year
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Landuse Basin Data
Predeveloped Land Use
Basin 1
Bypass:No
GroundWater:No
Pervious Land Use acre
C, Forest, Flat 1.465
Pervious Total 1.465
Impervious Land Use acre
Impervious Total 0
Basin Total 1.465
Element Flows To:
Surface Interflow Groundwater
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Mitigated Land Use
Basin 1
Bypass:No
GroundWater:No
Pervious Land Use acre
C, Lawn, Flat 0.37
Pervious Total 0.37
Impervious Land Use acre
ROADS FLAT 0.822
ROOF TOPS FLAT 0.162
SIDEWALKS FLAT 0.111
Impervious Total 1.095
Basin Total 1.465
Element Flows To:
Surface Interflow Groundwater
Vault 2 Vault 2
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Routing Elements
Predeveloped Routing
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Mitigated Routing
Vault 2
Width:30 ft.
Length:130 ft.
Depth:8 ft.
Discharge Structure
Riser Height:7 ft.
Riser Diameter:18 in.
Orifice 1 Diameter:0.6 in.Elevation:0 ft.
Orifice 2 Diameter:0.25 in.Elevation:3 ft.
Orifice 3 Diameter:0.125 in.Elevation:5 ft.
Element Flows To:
Outlet 1 Outlet 2
Vault Hydraulic Table
Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs)
0.0000 0.089 0.000 0.000 0.000
0.0889 0.089 0.008 0.002 0.000
0.1778 0.089 0.015 0.004 0.000
0.2667 0.089 0.023 0.005 0.000
0.3556 0.089 0.031 0.005 0.000
0.4444 0.089 0.039 0.006 0.000
0.5333 0.089 0.047 0.007 0.000
0.6222 0.089 0.055 0.007 0.000
0.7111 0.089 0.063 0.008 0.000
0.8000 0.089 0.071 0.008 0.000
0.8889 0.089 0.079 0.009 0.000
0.9778 0.089 0.087 0.009 0.000
1.0667 0.089 0.095 0.010 0.000
1.1556 0.089 0.103 0.010 0.000
1.2444 0.089 0.111 0.010 0.000
1.3333 0.089 0.119 0.011 0.000
1.4222 0.089 0.127 0.011 0.000
1.5111 0.089 0.135 0.012 0.000
1.6000 0.089 0.143 0.012 0.000
1.6889 0.089 0.151 0.012 0.000
1.7778 0.089 0.159 0.013 0.000
1.8667 0.089 0.167 0.013 0.000
1.9556 0.089 0.175 0.013 0.000
2.0444 0.089 0.183 0.014 0.000
2.1333 0.089 0.191 0.014 0.000
2.2222 0.089 0.199 0.014 0.000
2.3111 0.089 0.206 0.014 0.000
2.4000 0.089 0.214 0.015 0.000
2.4889 0.089 0.222 0.015 0.000
2.5778 0.089 0.230 0.015 0.000
2.6667 0.089 0.238 0.016 0.000
2.7556 0.089 0.246 0.016 0.000
2.8444 0.089 0.254 0.016 0.000
2.9333 0.089 0.262 0.016 0.000
3.0222 0.089 0.270 0.017 0.000
3.1111 0.089 0.278 0.017 0.000
3.2000 0.089 0.286 0.018 0.000
3.2889 0.089 0.294 0.018 0.000
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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3.3778 0.089 0.302 0.019 0.000
3.4667 0.089 0.310 0.019 0.000
3.5556 0.089 0.318 0.019 0.000
3.6444 0.089 0.326 0.020 0.000
3.7333 0.089 0.334 0.020 0.000
3.8222 0.089 0.342 0.020 0.000
3.9111 0.089 0.350 0.020 0.000
4.0000 0.089 0.358 0.021 0.000
4.0889 0.089 0.366 0.021 0.000
4.1778 0.089 0.374 0.021 0.000
4.2667 0.089 0.382 0.022 0.000
4.3556 0.089 0.390 0.022 0.000
4.4444 0.089 0.397 0.022 0.000
4.5333 0.089 0.405 0.022 0.000
4.6222 0.089 0.413 0.023 0.000
4.7111 0.089 0.421 0.023 0.000
4.8000 0.089 0.429 0.023 0.000
4.8889 0.089 0.437 0.023 0.000
4.9778 0.089 0.445 0.024 0.000
5.0667 0.089 0.453 0.024 0.000
5.1556 0.089 0.461 0.024 0.000
5.2444 0.089 0.469 0.025 0.000
5.3333 0.089 0.477 0.025 0.000
5.4222 0.089 0.485 0.025 0.000
5.5111 0.089 0.493 0.025 0.000
5.6000 0.089 0.501 0.026 0.000
5.6889 0.089 0.509 0.026 0.000
5.7778 0.089 0.517 0.026 0.000
5.8667 0.089 0.525 0.026 0.000
5.9556 0.089 0.533 0.027 0.000
6.0444 0.089 0.541 0.027 0.000
6.1333 0.089 0.549 0.027 0.000
6.2222 0.089 0.557 0.027 0.000
6.3111 0.089 0.565 0.028 0.000
6.4000 0.089 0.573 0.028 0.000
6.4889 0.089 0.581 0.028 0.000
6.5778 0.089 0.588 0.028 0.000
6.6667 0.089 0.596 0.029 0.000
6.7556 0.089 0.604 0.029 0.000
6.8444 0.089 0.612 0.029 0.000
6.9333 0.089 0.620 0.029 0.000
7.0222 0.089 0.628 0.082 0.000
7.1111 0.089 0.636 0.617 0.000
7.2000 0.089 0.644 1.434 0.000
7.2889 0.089 0.652 2.405 0.000
7.3778 0.089 0.660 3.417 0.000
7.4667 0.089 0.668 4.357 0.000
7.5556 0.089 0.676 5.128 0.000
7.6444 0.089 0.684 5.680 0.000
7.7333 0.089 0.692 6.045 0.000
7.8222 0.089 0.700 6.457 0.000
7.9111 0.089 0.708 6.796 0.000
8.0000 0.089 0.716 7.118 0.000
8.0889 0.089 0.724 7.427 0.000
8.1778 0.000 0.000 7.723 0.000
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Analysis Results
POC 1
+ Predeveloped x Mitigated
Predeveloped Landuse Totals for POC #1
Total Pervious Area:1.465
Total Impervious Area:0
Mitigated Landuse Totals for POC #1
Total Pervious Area:0.37
Total Impervious Area:1.095
Flow Frequency Method:Log Pearson Type III 17B
Flow Frequency Return Periods for Predeveloped. POC #1
Return Period Flow(cfs)
2 year 0.043072
5 year 0.067647
10 year 0.081573
25 year 0.096327
50 year 0.105457
100 year 0.113223
Flow Frequency Return Periods for Mitigated. POC #1
Return Period Flow(cfs)
2 year 0.020247
5 year 0.028103
10 year 0.034328
25 year 0.04347
50 year 0.051286
100 year 0.060034
Annual Peaks
Annual Peaks for Predeveloped and Mitigated. POC #1
Year Predeveloped Mitigated
1949 0.042 0.017
1950 0.053 0.022
1951 0.095 0.029
1952 0.030 0.015
1953 0.024 0.021
1954 0.037 0.018
1955 0.059 0.017
1956 0.047 0.025
1957 0.038 0.018
1958 0.043 0.020
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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1959 0.037 0.018
1960 0.064 0.025
1961 0.036 0.022
1962 0.023 0.015
1963 0.031 0.020
1964 0.041 0.022
1965 0.029 0.023
1966 0.028 0.020
1967 0.059 0.022
1968 0.037 0.019
1969 0.036 0.019
1970 0.029 0.021
1971 0.032 0.020
1972 0.071 0.027
1973 0.032 0.024
1974 0.035 0.020
1975 0.047 0.017
1976 0.034 0.019
1977 0.004 0.015
1978 0.030 0.021
1979 0.018 0.014
1980 0.067 0.029
1981 0.027 0.020
1982 0.051 0.024
1983 0.046 0.019
1984 0.028 0.015
1985 0.017 0.015
1986 0.075 0.021
1987 0.066 0.024
1988 0.026 0.017
1989 0.017 0.015
1990 0.138 0.025
1991 0.083 0.026
1992 0.032 0.021
1993 0.033 0.015
1994 0.011 0.013
1995 0.048 0.023
1996 0.101 0.028
1997 0.084 0.083
1998 0.019 0.016
1999 0.079 0.027
2000 0.033 0.021
2001 0.006 0.012
2002 0.036 0.022
2003 0.047 0.018
2004 0.060 0.027
2005 0.043 0.018
2006 0.051 0.026
2007 0.102 0.125
2008 0.132 0.027
2009 0.065 0.023
Ranked Annual Peaks
Ranked Annual Peaks for Predeveloped and Mitigated. POC #1
Rank Predeveloped Mitigated
1 0.1381 0.1252
2 0.1322 0.0829
3 0.1025 0.0290
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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4 0.1009 0.0288
5 0.0948 0.0277
6 0.0844 0.0274
7 0.0831 0.0273
8 0.0791 0.0268
9 0.0747 0.0267
10 0.0706 0.0260
11 0.0669 0.0256
12 0.0660 0.0255
13 0.0649 0.0255
14 0.0641 0.0254
15 0.0603 0.0243
16 0.0592 0.0238
17 0.0586 0.0238
18 0.0528 0.0234
19 0.0515 0.0228
20 0.0510 0.0226
21 0.0479 0.0224
22 0.0472 0.0223
23 0.0471 0.0219
24 0.0466 0.0218
25 0.0461 0.0216
26 0.0432 0.0214
27 0.0428 0.0213
28 0.0423 0.0211
29 0.0407 0.0209
30 0.0380 0.0209
31 0.0371 0.0207
32 0.0367 0.0204
33 0.0365 0.0202
34 0.0365 0.0197
35 0.0362 0.0197
36 0.0357 0.0197
37 0.0348 0.0196
38 0.0341 0.0195
39 0.0334 0.0192
40 0.0333 0.0191
41 0.0321 0.0188
42 0.0321 0.0183
43 0.0315 0.0181
44 0.0309 0.0180
45 0.0299 0.0176
46 0.0299 0.0175
47 0.0295 0.0175
48 0.0291 0.0173
49 0.0285 0.0170
50 0.0280 0.0167
51 0.0268 0.0158
52 0.0261 0.0154
53 0.0242 0.0154
54 0.0225 0.0154
55 0.0191 0.0152
56 0.0181 0.0151
57 0.0170 0.0149
58 0.0169 0.0148
59 0.0112 0.0137
60 0.0060 0.0133
61 0.0041 0.0121
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Duration Flows
The Facility PASSED
Flow(cfs)Predev Mit Percentage Pass/Fail
0.0215 17562 15503 88 Pass
0.0224 16164 12429 76 Pass
0.0232 14964 9180 61 Pass
0.0241 13858 6451 46 Pass
0.0249 12816 5108 39 Pass
0.0258 11813 3662 30 Pass
0.0266 10900 2843 26 Pass
0.0275 10123 1794 17 Pass
0.0283 9388 1176 12 Pass
0.0292 8733 511 5 Pass
0.0300 8145 160 1 Pass
0.0309 7593 154 2 Pass
0.0317 7063 150 2 Pass
0.0326 6590 148 2 Pass
0.0334 6147 144 2 Pass
0.0343 5777 143 2 Pass
0.0351 5435 138 2 Pass
0.0359 5101 137 2 Pass
0.0368 4808 134 2 Pass
0.0376 4524 131 2 Pass
0.0385 4254 126 2 Pass
0.0393 4017 122 3 Pass
0.0402 3784 120 3 Pass
0.0410 3546 119 3 Pass
0.0419 3337 114 3 Pass
0.0427 3138 112 3 Pass
0.0436 2952 112 3 Pass
0.0444 2785 106 3 Pass
0.0453 2597 104 4 Pass
0.0461 2449 101 4 Pass
0.0470 2304 97 4 Pass
0.0478 2160 93 4 Pass
0.0487 2025 91 4 Pass
0.0495 1900 91 4 Pass
0.0504 1790 86 4 Pass
0.0512 1688 83 4 Pass
0.0521 1585 83 5 Pass
0.0529 1483 79 5 Pass
0.0537 1381 77 5 Pass
0.0546 1292 73 5 Pass
0.0554 1218 72 5 Pass
0.0563 1154 70 6 Pass
0.0571 1098 66 6 Pass
0.0580 1048 61 5 Pass
0.0588 997 59 5 Pass
0.0597 930 51 5 Pass
0.0605 883 45 5 Pass
0.0614 837 40 4 Pass
0.0622 789 37 4 Pass
0.0631 743 35 4 Pass
0.0639 713 32 4 Pass
0.0648 668 29 4 Pass
0.0656 630 28 4 Pass
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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0.0665 595 23 3 Pass
0.0673 565 22 3 Pass
0.0682 539 21 3 Pass
0.0690 497 17 3 Pass
0.0699 473 16 3 Pass
0.0707 434 14 3 Pass
0.0715 399 14 3 Pass
0.0724 366 14 3 Pass
0.0732 348 14 4 Pass
0.0741 323 14 4 Pass
0.0749 296 11 3 Pass
0.0758 272 11 4 Pass
0.0766 256 11 4 Pass
0.0775 235 11 4 Pass
0.0783 217 9 4 Pass
0.0792 195 9 4 Pass
0.0800 180 9 5 Pass
0.0809 158 9 5 Pass
0.0817 145 7 4 Pass
0.0826 129 6 4 Pass
0.0834 119 4 3 Pass
0.0843 109 4 3 Pass
0.0851 97 4 4 Pass
0.0860 91 4 4 Pass
0.0868 82 4 4 Pass
0.0877 76 4 5 Pass
0.0885 69 4 5 Pass
0.0894 61 4 6 Pass
0.0902 54 4 7 Pass
0.0910 48 4 8 Pass
0.0919 41 4 9 Pass
0.0927 38 4 10 Pass
0.0936 33 3 9 Pass
0.0944 27 3 11 Pass
0.0953 22 3 13 Pass
0.0961 21 3 14 Pass
0.0970 20 3 15 Pass
0.0978 19 3 15 Pass
0.0987 17 3 17 Pass
0.0995 13 3 23 Pass
0.1004 12 3 25 Pass
0.1012 9 3 33 Pass
0.1021 4 3 75 Pass
0.1029 3 3 100 Pass
0.1038 3 3 100 Pass
0.1046 3 3 100 Pass
0.1055 3 3 100 Pass
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
APPENDIX D
Geotechnical Report (By PanGEO, Dated May 2019)
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Geotechnical & Earthquake
Engineering Consultants
GEOTECHNICAL REPORT
BENSON DRIVE SOUTH AND
SOUTHEAST PETROVITSKY ROAD
Renton, Washington
PROJECT NO. 19-122
May 2019
Prepared for:
TA Renton BP, LLC
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
________________________________________________
3213 Eastlake Avenue East, Suite B
Seattle, WA 98102
T. (206) 262-0370
F. (206) 262-0374
Geotechnical & Earthquake
Engineering Consultants
May 13, 2019
PanGEO Project No. 19-122
Ms. Michelle Woodward
TA Renton BP, LLC
2600 North Dallas Parkway, Suite 370
Frisco, Texas 75234
Subject: Geotechnical Report
Proposed Retail Development
Benson Drive South and Southeast Petrovitsky Road
Renton, Washington
Dear Ms. Woodward:
As requested, PanGEO, Inc. is pleased to present this geotechnical report to assist the
project team with the design and construction of the proposed retail development located
in the northeast corner of the intersection of Benson Drive South and Southeast Petrovitsky
Road in Renton, Washington.
In preparing this report, we observed and logged the drilling of eight test borings at the site
and conducted our engineering analyses. In summary, our test borings encountered up to
about 4 feet of fill overlying glacially consolidated soils and highly weathered bedrock.
In our opinion, the proposed buildings may be supported on spread footings bearing on
competent native soils or on structural fill placed on competent native soils.
We appreciate the opportunity to be of service. Should you have any questions, please do
not hesitate to call.
Sincerely,
Scott D. Dinkelman, LEG
Senior Engineering Geologist
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
19-122 Benson Drive and Petrovitsky Road Page 1 PanGEO, Inc.
TABLE OF CONTENTS
Section Page
1.0 GENERAL .................................................................................................................1
2.0 SITE AND PROJECT DESCRIPTION .....................................................................1
3.0 SUBSURFACE EXPLORATIONS ...........................................................................3 3.1 SITE GEOLOGY ................................................................................................3 3.2 SUBSURFACE EXPLORATION ...........................................................................3 3.3 SOIL CONDITIONS............................................................................................4 3.4 GROUNDWATER ..............................................................................................5
4.0 INFILTRATION CONSIDERATIONS ....................................................................6
5.0 GEOTECHNICAL RECOMMENDATIONS ...........................................................6 5.1 SEISMIC DESIGN PARAMETERS ........................................................................6 5.2 BUILDING FOUNDATIONS ................................................................................7
5.2.1 Lateral Resistance ...........................................................................8
5.2.2 Perimeter Footing Drains ...............................................................8
5.2.3 Footing Subgrade Preparation .......................................................9 5.3 FLOORS SLABS ................................................................................................9 5.4 RETAINING WALL DESIGN PARAMETERS ........................................................10
5.4.1 Lateral Earth Pressures ..................................................................10
5.4.2 Surcharge ........................................................................................10
5.4.3 Lateral Resistance ...........................................................................10
5.4.4 Wall Drainage .................................................................................11
5.4.5 Wall Backfill....................................................................................11 5.5 PERMANENT CUT AND FILL SLOPES ................................................................11
6.0 EARTHWORK CONSIDERATIONS .......................................................................12 6.1 STRIPPING, CLEARING AND SUBGRADE PREPARATION ....................................12 6.2 PERCHED SEEPAGE CONTROL .........................................................................12 6.3 TEMPORARY EXCAVATIONS AND SHORING .....................................................13 6.4 MATERIAL REUSE ...........................................................................................13 6.5 STRUCTURAL FILL AND COMPACTION .............................................................13 6.6 WET WEATHER CONSTRUCTION .....................................................................14 6.7 EROSION CONSIDERATIONS .............................................................................15
7.0 ADDITIONAL SERVICES .......................................................................................16
8.0 CLOSURE .................................................................................................................16
9.0 REFERENCES ...........................................................................................................18
ATTACHMENTS:
Figure 1 Vicinity Map
Figure 2 Site and Exploration Plan
Appendix A Boring Logs
Figures A-1 and A-1a Terms and Symbols for Boring and Test Pit Logs
Figures A-2 to A-9 Logs of Test Borings PG-1 through PG-8
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GEOTECHNICAL REPORT
PROPOSED RETAIL DEVELOPMENT
BENSON DRIVE SOUTH AND SOUTHEAST PETROVITSKY ROAD
RENTON, WASHINGTON
1.0 GENERAL
As requested, PanGEO is pleased to present this geotechnical report for the proposed retail
development to be located northeast corner of the Benson Drive South and Southeast
Petrovitsky Road in Renton, Washington. This study was performed in general accordance
with our mutually agreed scope of services outlined in our proposal dated April 12, 2019.
Our scope of services included reviewing readily available geologic and geotechnical data,
drilling eight borings, conducting a site reconnaissance, and preparing this report.
2.0 SITE AND PROJECT DESCRIPTION
The subject is comprised of three separate parcels located at 17426 Benson Drive South,
10810 Southeast Petrovitsky Road and 10828 Southeast Petrovitsky Road in the northeast
corner of the intersection of Benson Drive South and Southeast Petrovitsky Road in
Renton, Washington. The approximate location of the site is shown on Figure 1, Vicinity
Map.
The three parcels have an aggregate area of approximately 1.67 acres. The layout of the
site is shown on Figure 2, Site and Exploration Plan. Plate 1, below shows an aerial view
of the site. The approximately L-shaped property is bordered to the northwest by a two-
story office building, to the north by a single-story church, to the east by two single-story
office buildings, to the west by Benson Drive South, and to the south by Southeast
Petrovitsky Road. The site slopes down from east to west, with about 8 feet of elevation
change across the approximate 300-foot length of the site.
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Plate 1: Aerial view
of the site.
Benson Drive is
along the left side of
photo. Southeast
Petrovitsky Road is
along the bottom.
(Bing Maps)
Plate 2: View from
northwest corner of
the site looking site to
the south-southeast.
The site is currently developed with three one-story buildings that are vacant or being used
as offices. We understand it is planned to demolish the existing structures and redevelop
the site with a bank building, a convenience store with a detached fueling island, and three
retail buildings. The proposed development layout is shown on Figure 2.
The proposed buildings will be one-story in height and will be constructed at or near
existing site grades and we anticipate cuts and fills of less than five feet will be required to
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achieve construction subgrade elevations. The proposed buildings will be surrounded by
asphalt paved parking and drive areas.
The conclusions and recommendations in this report are based on our understanding of the
proposed development, which is in turn based on the project information provided. If the
above project description is incorrect, or the project information changes, we should be
consulted to review the recommendations contained in this study and make modifications,
if needed. In any case PanGEO should be retained to provide a review of the final design
to confirm that our geotechnical recommendations have been correctly interpreted and
adequately implemented in the construction documents.
3.0 SUBSURFACE EXPLORATIONS
3.1 SITE GEOLOGY
General geologic information for the project area was obtained by reviewing the Geologic
Map of the Renton Quadrangle, King County, Washington (Mullineaux, 1965) and the
Geologic Map of the Tacoma 1:100,000-scale Quadrangle, Washington (Schuster et al,
2015). Based on our review, the geologic units in the vicinity of the site consist of Vashon
till – Geologic Map Unit Qgt, with Renton Formation sedimentary units mapped nearby –
Geologic Map Unit Ec2pg.
Vashon till is described as consisting of an unsorted deposit (diamict) of clay, silt, sand and
gravel that has been glacially transported and deposited. This soil has been directly
deposited by a glacier and overridden by several thousand feet of glacial ice and is typically
dense to very dense.
The Renton Formation sedimentary unit is locally classified as part of the Puget Group and
described as an interbedded sedimentary rock consisting of sandstone, siltstone, shale,
claystone, carbonaceous shale and coal beds. This unit is considered the bedrock unit in
this area.
3.2 SUBSURFACE EXPLORATION
We drilled and logged eight borings at the site on April 23, 2019. The borings were drilled
using a track-mounted EC95 drill rig owned and operated by Boretec Drilling, Inc. under
subcontract to PanGEO and were logged by a geologist with our firm. The borings were
drilled to a maximum depth of about 16 feet below existing grade. The approximate boring
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locations were located in the field by measuring from property corners and site features
and are shown on Figure 2, Site and Exploration Plan.
Standard Penetration Tests (SPT) were performed at 2½- to 5-foot depth intervals using a
standard, 2-inch diameter split-spoon sampler. The sampler was advanced with a 140-
pound drop hammer falling a distance of 30 inches for each strike, in general accordance
with ASTM D1586, Standard Test Method for Penetration Test and Split Barrel Sampling
of Soils.
The soils were logged in general accordance with ASTM D2487 Standard Practice for
Classification of Soils for Engineering Purposes and the system summarized on Figure A-
1 and Figure A-1a, Terms and Symbols for Boring and Test Pit Logs.
3.3 SOIL CONDITIONS
For a detailed description of the subsurface conditions encountered at each exploration
location, please refer to our boring logs provided in Appendix A. The stratigraphic contacts
indicated on the boring logs represent the approximate depth to boundaries between soil
units. Actual transitions between soil units may be more gradual or occur at different
elevations. The descriptions of groundwater conditions and depths are likewise
approximate. The following is a generalized description of the soils encountered in the
borings.
Asphalt: Test borings PG-1, PG-2, PG-5, PG-6, PG-7 and PG-8 were located in
asphalt paved parking and drive areas. At these locations we encountered between
two and five inches of asphalt surfacing.
Topsoil: Borings PG-3 and PG-4 were located outside of paved areas. In these areas,
we encountered a surficial layer of topsoil comprised of about six inches of silty sand
with organics and roots.
Fill: Below the asphalt at the locations of PG-1, PG-5, PG-7 and PG-8, we
encountered fill. The fill generally consisted of a few inches of gravel over sandy silt
with varying amounts of gravel and cobbles. This unit ranged from 2½ to 4½ feet
thick. The approximate fill thicknesses are identified on the boring logs and on Figure
2.
Weathered Vashon Till (Qgt): The native soil below the fill and in areas where fill
was not encountered consists of medium dense to very dense silty fine to medium sand
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with gravel and which we classified as Vashon Till. At the base of this unit, from
approximately 10 to 14 feet below grade, the till graded to dense to very dense.
Perched groundwater was encountered throughout this unit.
The Vashon till encountered at our boring locations is consistent with the geologic
mapping of this area. Test borings PG-4 and PG-6 were terminated in this unit.
Renton Formation (Ec2pg): With the exception of borings PG-4 and PG-6, all of our
other test borings encountered a hard sandy silt with gravel below the weathered
Vashon Till. We classified the hard silt as the Renton Formation (bedrock). The
Renton Formation was identifiable with the increase in coal fragments present in the
samples. This unit is highly weathered to a residual soil (relative weathering RVI) at
the top and graded to less weathered with depth.
The Renton Formation encountered at our boring locations is consistent with the upper
unit of the Puget Group mapping of the region. In test boring PG-1 this unit was only
slightly weathered at approximately 13 feet (relative weathering RII) and in test boring
PG-7 this unit was highly weathered at approximately 15 feet (relative weathering
RIV). Test borings PG-2, PG-3, PG-5, and PG-8 terminated in the residual soil
(relative weathering RVI) portion of this unit.
Our subsurface descriptions are based on the conditions encountered at the time of our
exploration. Soil conditions between our exploration locations may vary from those
encountered. The nature and extent of variations between our exploratory locations may
not become evident until construction. If variations do appear, PanGEO should be
requested to reevaluate the recommendations in this report and to modify or verify them in
writing prior to proceeding with earthwork and construction.
3.4 GROUNDWATER
Increased soil moisture and light groundwater seepage was encountered beginning at
approximately 4 feet below grade during drilling. This moisture is likely perched
groundwater that has developed in lenses of highly permeable soil within the weathered till
formation. If seepage is encountered, we anticipate seepage rates will be light to moderate.
Groundwater levels will change depending on the season, amount of rainfall, surface water
runoff, and other factors. Generally, the water level is higher and seepage rates are greater
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in the wetter, winter months (typically October through May). During periods of
significant precipitation, perched groundwater may also be present at the fill-till contacts.
4.0 INFILTRATION CONSIDERATIONS
The native soils underlying the site consist of Vashon till, a medium dense to very dense
deposit comprised of clay, silt, sand, and gravel. Till is generally not a suitable receptor
soil for infiltration due to the high fines content and density. Where loosened by
weathering infiltration rates of about ½ inch per hour may be obtained. Where
unweathered, infiltration rates are typically less than 0.1 inch per hour. Perched
groundwater, which can limit infiltration, also develops in till soils during wet season at
the transition from weathered to unweathered soils.
The site is also underlain by a surficial layer of fill. Fill soils are not suitable for infiltration
due to their variable nature and the potential for them to consolidate we wetted, changing
their infiltration characteristics over time.
In summary, it is our opinion that non-infiltration alternatives should be considered to
manage the surface runoff at the site.
5.0 GEOTECHNICAL RECOMMENDATIONS
5.1 SEISMIC DESIGN PARAMETERS
The 2015 International Building Code (IBC) seismic design section provides a basis for
seismic design of structures. Table 1 below provides seismic design parameters for the site
that are in conformance with the 2015 IBC, which specifies a design earthquake having a
2% probability of occurrence in 50 years (return interval of 2,475 years), and the 2008
USGS seismic hazard maps.
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Table 1 – Seismic Design Parameters
The spectral response accelerations were obtained from the USGS Earthquake Hazards
Program Interpolated Probabilistic Ground Motion website (2008 data) for the project
latitude and longitude.
Liquefaction Potential: Liquefaction is a process that can occur when soils lose shear
strength for short periods of time during a seismic event. Ground shaking of sufficient
strength and duration results in the loss of grain-to-grain contact and an increase in pore
water pressure, causing the soil to behave as a fluid. Soils with a potential for liquefaction
are typically cohesionless, predominately silt and sand sized, must be loose, and be below
the groundwater table. The site is predominantly underlain by very dense silty sand with
gravel and hard sandy silt without a defined groundwater table. Based on these conditions,
in our opinion the liquefaction potential of the site is negligible and design considerations
related to soil liquefaction are not necessary for this project.
5.2 BUILDING FOUNDATIONS
Based on the subsurface conditions encountered at the site and our understanding of the
planned development, it is our opinion the proposed buildings may be supported on
conventional footings. The footings should bear on the medium dense to very dense,
undisturbed native soil below the fill, or on properly compacted structural fill placed on
undisturbed native soil.
We encountered up to about 4½ feet of fill at our test boring locations. If fill is encountered
at the foundation subgrade elevation, the fill should be overexcavated and replaced with
properly compacted structural fill. The overexcavation width should extend at least one
foot beyond the width of the foundation elements.
Site
Class
Spectral
Acceleration
at 0.2 sec.
[g]
SS
Spectral
Acceleration
at 1.0 sec.
[g]
S1
Site
Coefficients
Design Spectral
Response
Parameters
Control Periods
[sec.]
Fa Fv SDS SD1 TO TS
C 1.396 0.520 1.000 1.300 0.931 0.451 0.096 0.484
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Exterior foundation elements should be placed at a minimum depth of 18 inches below
final exterior grade. Interior spread foundations should be placed at a minimum depth of
12 inches below the top of concrete slabs.
A maximum allowable soil bearing pressure of 3,000 pounds per square foot (psf) should
be used for sizing foundation elements bearing on dense to very dense native soil, or on
structural fill. PanGEO should be retained to determine the adequacy of footing subgrade
during construction.
The recommended allowable soil bearing pressure is for dead plus live loads. For
allowable stress design, the recommended bearing pressure may be increased by one-third
for transient loading, such as wind or seismic forces. Continuous and individual spread
footings should have minimum widths of 18 and 24 inches, respectively.
Footings designed and constructed in accordance with the above recommendations should
experience total settlement of less than one inch and differential settlement of less than ½
inch. Most of the anticipated settlement should occur during construction as dead loads
are applied.
5.2.1 Lateral Resistance
Lateral loads on the structure may be resisted by passive earth pressure developed against
the embedded portion of the foundation system and by frictional resistance between the
bottom of the foundation and the supporting subgrade soils. For footings bearing on the
dense to very dense silty sand, a frictional coefficient of 0.35 may be used to evaluate
sliding resistance developed between the concrete and the subgrade soil. Passive soil
resistance may be calculated using an equivalent fluid weight of 350 pcf, assuming
foundations are backfilled with structural fill. The above values include a factor of safety
of 1.5. Unless covered by pavements or slabs, the passive resistance in the upper 12 inches
of soil should be neglected.
5.2.2 Perimeter Footing Drains
Footing drains should be installed around the perimeter of the buildings, at or just below
the invert of the footings. Under no circumstances should roof downspout drain lines be
connected to the footing drain systems. Roof downspouts must be separately tightlined to
appropriate discharge locations. Cleanouts should be installed at strategic locations to
allow for periodic maintenance of the footing drain and downspout tightline systems.
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5.2.3 Footing Subgrade Preparation
At our boring locations, we encountered 2½ to 4½ feet of fill. The fill is variable and would
not be suitable for direct support of foundation loads. If fill is encountered at the foundation
subgrade elevation, the fill should be overexcavated and replaced with structural fill. The
overexcavation width should extend at least one half the overexcavation depth beyond the
width of the foundation elements.
All footing subgrade should be properly prepared and in a dense and unyielding condition
prior to setting forms and placing reinforcing steel. Any loose or softened soil should be
removed from the footing excavations. The adequacy of the footing subgrade soils should
be verified by a representative of PanGEO, prior to placing forms or rebar.
5.3 FLOORS SLABS
The floor slabs for the proposed building may be constructed using conventional concrete
slab-on-grade floor construction. The floor slab should be supported on competent native
soil or on structural fill. Any over-excavations, if needed, should be backfilled with
structural fill.
If the existing fill is encountered in slab-on-grade areas, the fill should be removed to a
depth of 12 inches below the capillary break, the surface compacted to the requirements of
structural fill, and the grade restored using structural fill.
Interior concrete slab-on-grade floors should be underlain by a capillary break consisting
of at least of 4 inches of pea gravel or compacted ¾-inch, clean crushed rock (less than 3
percent fines). The capillary break material should meet the gradational requirements
provided in Table 2, next page.
Table 2 – Capillary Break Gradation
The capillary break should be placed on the subgrade that has been compacted to a dense
and unyielding condition.
Sieve Size Percent Passing
¾-inch 100
No. 4 0 – 10
No. 100 0 – 5
No. 200 0 – 3
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A 10-mil polyethylene vapor barrier should also be placed directly below the slab.
Construction joints should be incorporated into the floor slab to control cracking.
5.4 RETAINING WALL DESIGN PARAMETERS
Retaining walls, if needed, should be designed to resist the lateral earth pressures exerted
by the soils behind the wall. Proper drainage provisions should also be provided behind
the walls to intercept and remove groundwater that may be present behind the wall. Our
geotechnical recommendations for the design and construction of retaining walls are
presented below.
5.4.1 Lateral Earth Pressures
Cantilever walls should be designed for an equivalent fluid pressure of 35 pcf for a level
backfill condition behind the walls assuming the walls are free to rotate. If the walls are
restrained at the top from free movement, such as basement walls with a floor diaphragm,
an equivalent fluid pressure of 45 pcf should be used for a level backfill condition behind
the walls. Permanent walls should be designed for an additional uniform lateral pressure
of 7H psf for seismic loading, where H corresponds to the buried depth of the wall.
The recommended lateral pressures assume the backfill behind the walls consists of a free
draining and properly compacted fill with adequate drainage provisions.
5.4.2 Surcharge
Surcharge loads, where present, should also be included in the design of retaining walls.
We recommend a lateral load coefficient of 0.3 be used to compute the lateral pressure on
the wall face resulting from surcharge loads located within a horizontal distance of one-
half the wall height.
5.4.3 Lateral Resistance
Lateral forces from seismic loading and unbalanced lateral earth pressures may be resisted
by a combination of passive earth pressures acting against the embedded portions of the
foundations and by friction acting on the base of the wall foundation. Passive resistance
values may be determined using an equivalent fluid weight of 350 pcf. This value includes
a factor of safety of 1.5, assuming the footing is backfilled with structural fill. A friction
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coefficient of 0.35 may be used to determine the frictional resistance at the base of the
footings. The coefficient includes a factor of safety of 1.5.
5.4.4 Wall Drainage
Provisions for wall drainage should consist of a 4-inch diameter perforated drainpipe
placed behind and at the base of the wall footings, embedded in 12 to 18 inches of clean
crushed rock or pea gravel wrapped with a layer of filter fabric. A minimum 18-inch wide
zone of free draining granular soils (i.e. pea gravel or washed rock) is recommended to be
placed adjacent to the wall for the full height of the wall. Alternatively, a composite
drainage material, such as Miradrain 6000, may be used in lieu of the clean crushed rock
or pea gravel. The drainpipe at the base of the wall should be graded to direct water to a
suitable outlet.
5.4.5 Wall Backfill
Wall backfill should consist of imported, free draining granular material or a soil meeting
the requirements of Gravel Borrow as defined in Section 9-03.14(1) of the WSDOT
Standard Specifications for Road, Bridge, and Municipal Construction (WSDOT 2014).
In areas where space is limited between the wall and the face of excavation, pea gravel may
be used as backfill without compaction.
In our opinion, the predominately silty sand and sandy silt soils underlying the site are not
suitable for use as wall backfill.
Wall backfill should be moisture conditioned to within about 3 percent of optimum
moisture content, placed in loose, horizontal lifts less than 8 inches in thickness, and
systematically compacted to a dense and relatively unyielding condition and to at least 95
percent of the maximum dry density, as determined using test method ASTM D1557.
Within 5 feet of the wall, the backfill should be compacted with hand-operated equipment
to at least 90 percent of the maximum dry density.
5.5 PERMANENT CUT AND FILL SLOPES
Based on the anticipated soil that will be exposed in the planned excavation, we
recommend permanent cut and fill slopes be constructed no steeper than 2H:1V
(Horizontal:Vertical).
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6.0 EARTHWORK CONSIDERATIONS
6.1 STRIPPING, CLEARING AND SUBGRADE PREPARATION
Foundation and pavement areas, and areas to receive structural fill, should be stripped and
cleared of surface vegetation, organic matter, existing pavements, and other deleterious
materials. In no case should stripped materials be used as structural fill nor should they be
mixed with materials to be used as structural fill. Outside of construction areas, the existing
site pavement may be left in-place to provide an all-weather construction surface.
In areas where existing foundations, slab-on-grade floors, and pavements are removed, it may
be possible to crush the existing materials for re-use as structural fill. Materials reclaimed by
crushing to be re-used as structural fill should have a maximum particle size of four inches
and should be mixed with soil to provide a well-graded fill material.
Existing underground utilities to be abandoned should be plugged or removed so they do not
provide a conduit for water and cause soil saturation and stability problems.
Following the stripping operation and excavations necessary to achieve construction
subgrade elevations, the ground surface where structural fill, or pavements are to be placed
should be observed by PanGEO. Proofrolling using a fully loaded dump truck should be
performed to identify soft or unstable areas.
Soft or yielding areas identified during proofrolling should be moisture conditioned as
needed and re-compacted in place. If soft areas are still yielding after re-compaction, they
should be overexcavated and replaced with structural fill to a depth that will provide a stable
pavement base. The optional use of a geotextile subgrade stabilization fabric, such as
Mirafi 600X, or an equivalent product placed directly on the over-excavated surface may
help to bridge excessively unstable areas.. Overexcavated areas should be and backfilled
with WSDOT 9-03.9(3) Crushed Surfacing Base Course, or WSDOT 9-03.14 (1) Gravel
Borrow (WSDOT, 2018) compacted to the requirements of structural fill. The subgrade
preparation should be observed by an individual experienced with earthwork construction,
to verify the adequacy of the prepared subgrade.
6.2 PERCHED SEEPAGE CONTROL
Perched groundwater was encountered in our borings at four to eleven feet below grade.
The seepage encountered appeared to be perched and likely develops during the wet
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season. Groundwater seepage may be encountered in site excavations, especially deep
excavations, such as for underground utility trenches.
Where seepage is encountered, the base of the excavation should be sloped to one or more
shallow sump pits. The collected water can then be pumped from these pits to a positive
and permanent discharge point. The spacing of the sumps should be determined during
construction based on field observations at the time of construction.
Where loose soils are encountered in conjunction with groundwater seepage the excavation
subgrade bottom may become soft. In these areas, remedial measures such as
overexcavating soft soils or tamping quarry spalls into the base of the excavation may be
required.
6.3 TEMPORARY EXCAVATIONS AND SHORING
Temporary excavations should be constructed in accordance with Part N of WAC
(Washington Administrative Code) 296-155. The contractor is responsible for maintaining
safe excavation slopes and/or shoring. It is our opinion temporary excavations in the fill
soils and underlying native soils may be cut at a maximum 1H:1V inclination.
Temporary excavations should be evaluated in the field during construction based on actual
observed soil conditions. If seepage is encountered, excavation slope inclinations may
need to be reduced. During wet weather, the temporary slopes may need to be flattened to
reduce potential erosion or should be covered with plastic sheeting.
6.4 MATERIAL REUSE
The native soils underlying the site are moisture sensitive, and will become disturbed and
soft when exposed to inclement weather conditions. We do not recommend reusing the
native soils as structural fill. If it is planned to use the native soil in non-structural areas,
the excavated soil should be stockpiled and protected with plastic sheeting to prevent it
from becoming saturated by precipitation or runoff.
6.5 STRUCTURAL FILL AND COMPACTION
Structural fill, should be free of organic and inorganic debris, be near the optimum moisture
content and be capable of being compacted to the recommendations provided below. The
site soils are relatively fine grained and, in our opinion will not be suitable for re-use as
structural fill and an imported structural fill will be needed. Fill for use during wet weather
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 14 PanGEO, Inc.
should consist of a well graded soil free of organic material with less than 5 percent fines
(silt and clay sized particles passing the U.S. 200 sieve).
Structural fill should be moisture conditioned to within about 3 percent of optimum
moisture content, placed in loose, horizontal lifts less than 8 inches in thickness, and
compacted to at least 95 percent maximum density, determined using ASTM D1557
(Modified Proctor). The procedure to achieve proper density of a compacted fill depends
on the size and type of compacting equipment, the number of passes, thickness of the lifts
being compacted, and certain soil properties. If the excavation to be backfilled is
constricted and limits the use of heavy equipment, smaller equipment can be used, but the
lift thickness will need to be reduced to achieve the required relative compaction.
Generally, loosely compacted soils are a result of poor construction technique or improper
moisture content. Soils with high fines contents are particularly susceptible to becoming
too wet and coarse-grained materials easily become too dry, for proper compaction. Silty
or clayey soils with a moisture content too high for adequate compaction should be dried
as necessary, or moisture conditioned by mixing with drier materials, or other methods.
6.6 WET WEATHER CONSTRUCTION
The wet season in Western Washington typically extends from October through May.
Earthwork during the wet season requires planning and may require the use of imported
wet weather fill materials that can increase earthwork costs. General recommendations
relative to earthwork performed in wet weather or in wet conditions are presented below.
The following procedures are best management practices recommended for use in wet
weather construction:
• Earthwork should be performed in small areas to minimize subgrade exposure
to wet weather. Excavation or the removal of unsuitable soil should be followed
promptly by the placement and compaction of clean structural fill. The size and
type of construction equipment used may have to be limited to prevent soil
disturbance.
• During wet weather, the allowable fines content of the structural fill should be
reduced to no more than 5 percent by weight based on the portion passing the
0.75-inch sieve. The fines should be non-plastic.
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 15 PanGEO, Inc.
• The ground surface within the construction area should be graded to promote
run-off of surface water and to prevent the ponding of water.
• Geotextile silt fences should be installed at strategic locations around the site to
control erosion and the movement of soil.
• Excavation slopes and soils stockpiled on site should be covered with plastic
sheeting.
6.7 EROSION CONSIDERATIONS
Surface runoff can be controlled during construction by careful grading practices.
Typically, this includes the construction of shallow, upgrade perimeter ditches or low
earthen berms in conjunction with silt fences to collect runoff and prevent water from
entering excavations or to prevent runoff from the construction area leaving the immediate
work site. Temporary erosion control may require the use of hay bales on the downhill
side of the project to prevent water from leaving the site and potential storm water detention
to trap sand and silt before the water is discharged to a suitable outlet. All collected water
should be directed under control to a positive and permanent discharge system.
Permanent control of surface water should be incorporated in the final grading design.
Adequate surface gradients and drainage systems should be incorporated into the design
such that surface runoff is collected and directed away from the structure to a suitable
outlet. Potential issues associated with erosion may also be reduced by establishing
vegetation within disturbed areas immediately following grading operations.
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 16 PanGEO, Inc.
7.0 ADDITIONAL SERVICES
To confirm that our recommendations are properly incorporated into the design and
construction of the proposed development, PanGEO should be retained to conduct a review
of the final project plans and specifications, and to monitor the construction of geotechnical
elements. PanGEO can provide you a cost estimate for construction monitoring services
at a later date.
8.0 CLOSURE
We have prepared this report for TA Renton BP, LLC and the project design team.
Recommendations contained in this report are based on a site reconnaissance, a subsurface
exploration program, review of pertinent subsurface information, and our understanding of
the project. The study was performed using a mutually agreed-upon scope of services.
Variations in soil conditions may exist between the locations of the explorations and the
actual conditions underlying the site. The nature and extent of soil variations may not be
evident until construction occurs. If any soil conditions are encountered at the site that are
different from those described in this report, we should be notified immediately to review
the applicability of our recommendations. Additionally, we should also be notified to
review the applicability of our recommendations if there are any changes in the project
scope.
The scope of our work does not include services related to construction safety precautions.
Our recommendations are not intended to direct the contractors’ methods, techniques,
sequences or procedures, except as specifically described in our report for consideration in
design. Additionally, the scope of our services specifically excludes the assessment of
environmental characteristics, particularly those involving hazardous substances. We are
not mold consultants nor are our recommendations to be interpreted as being preventative
of mold development. A mold specialist should be consulted for all mold-related issues.
This report has been prepared for planning and design purposes for specific application to
the proposed project in accordance with the generally accepted standards of local practice
at the time this report was written. No warranty, express or implied, is made.
This report may be used only by the client and for the purposes stated, within a reasonable
time from its issuance. Land use, site conditions (both off and on-site), or other factors
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 17 PanGEO, Inc.
including advances in our understanding of applied science, may change over time and
could materially affect our findings. Therefore, this report should not be relied upon after
24 months from its issuance. PanGEO should be notified if the project is delayed by more
than 24 months from the date of this report so that we may review the applicability of our
conclusions considering the time lapse.
It is the client’s responsibility to see that all parties to this project, including the designer,
contractor, subcontractors, etc., are made aware of this report in its entirety. The use of
information contained in this report for bidding purposes should be done at the contractor’s
option and risk. Any party other than the client who wishes to use this report shall notify
PanGEO of such intended use and for permission to copy this report. Based on the intended
use of the report, PanGEO may require that additional work be performed and that an
updated report be reissued. Noncompliance with any of these requirements will release
PanGEO from any liability resulting from the use this report.
Sincerely,
PanGEO, Inc.
Scott D. Dinkelman, LEG, LHG Siew L Tan, P.E.
Senior Engineering Geologist Principal Geotechnical Engineer
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Geotechnical Report
Proposed Retail Development: Benson Drive S and SE Petrovitsky Road, Renton, WA
May 13, 2019
19-122 Benson Drive and Petrovitsky Road Page 18 PanGEO, Inc.
9.0 REFERENCES
International Code Council, 2015, International Building Code (IBC), 2015.
Mullineaux, D.R., 1965, Geologic Map of the Renton Quadrangle, King County,
Washington – U.S. Geological Survey Geologic, Quadrangle Map GQ-405, scale
1:24,000.
Schuster, J.E., Cabibbo, A.A., Schilter, J.F., and Hubert I.J., 2015, Geologic Map of the
Tacoma 1:100,000-scale Quadrangle, Washington – Washington Division of Geology
and Earth Resources, Map Series 2015-03, scale 1:100,000.
WSDOT, 2018, Standard Specifications for Road, Bridge and Municipal Construction, M
41-10.
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Figure No.Project No.19-122
Proposed Retail Development
Benson Drive South and
Southeast Petrovitsky Road
Renton, WA 1
Base Map: Google Maps
VICINITY MAP
Approx. Scale:
Not to Scale
19-122 Fig 1 - Vicinity Map.grf 4/30/19 (14:00) SPS
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Project No. Figure No.
SITE AND EXPLORATION PLAN
19-122 219
-
1
2
2
F
i
g
2
S
i
t
e
&
E
x
p
l
o
r
a
t
i
o
n
P
l
a
n
.
g
r
f
5
/
9
/
1
9
S
P
S
LEGEND:
Approx. Scale
(feet)
Note: Site plan modified from ALTA/NSPS Land Title Survey, prepared by Terrane dated January 11, 2019
Proposed Retail Development
Benson Drive South and
Southeast Petrovitsky Road
Renton, WA
Approximate Boring Locations,
PanGEO, Inc., April 2019
(Approximate Thickness of Fill)
Approximate Proposed
Developments
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APPENDIX A
BORING LOGS
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MOISTURE CONTENT
2-inch OD Split Spoon, SPT
(140-lb. hammer, 30" drop)
3.25-inch OD Spilt Spoon
(300-lb hammer, 30" drop)
Non-standard penetration
test (see boring log for details)
Thin wall (Shelby) tube
Grab
Rock core
Vane Shear
Dusty, dry to the touch
Damp but no visible water
Visible free water
Terms and Symbols for
Boring and Test Pit Logs
Density
SILT / CLAY
GRAVEL (<5% fines)
GRAVEL (>12% fines)
SAND (<5% fines)
SAND (>12% fines)
Liquid Limit < 50
Liquid Limit > 50
Breaks along defined planes
Fracture planes that are polished or glossy
Angular soil lumps that resist breakdown
Soil that is broken and mixed
Less than one per foot
More than one per foot
Angle between bedding plane and a planenormaltocoreaxis
Very Loose
Loose
Med. Dense
Dense
Very Dense
SPT
N-values
Approx. Undrained Shear
Strength (psf)
<4
4 to 10
10 to 30
30 to 50
>50
<2
2 to 4
4 to 8
8 to 15
15 to 30
>30
SPT
N-values
Units of material distinguished by color and/orcomposition frommaterial unitsabove andbelow
Layers of soil typically 0.05 to 1mm thick, max. 1 cm
Layer of soil that pinches out laterally
Alternating layers of differing soil material
Erratic, discontinuous deposit of limited extent
Soil with uniform color and composition throughout
Approx. Relative
Density (%)
Gravel
Layered:
Laminated:
Lens:
Interlayered:
Pocket:
Homogeneous:
Highly Organic Soils
#4 to #10 sieve (4.5 to 2.0 mm)
#10 to #40 sieve (2.0 to 0.42 mm)
#40 to #200 sieve (0.42 to 0.074 mm)
0.074 to 0.002 mm
<0.002 mm
UNIFIED SOIL CLASSIFICATION SYSTEM
MAJOR DIVISIONS GROUP DESCRIPTIONS
Notes:
MONITORING WELL
<15
15 - 35
35 - 65
65 - 85
85 - 100
GW
GP
GM
GC
SW
SP
SM
SC
ML
CL
OL
MH
CH
OH
PT
TEST SYMBOLS
50%or more passing #200 sieve
Groundwater Level at time of drilling (ATD)Static Groundwater Level
Cement / Concrete Seal
Bentonite grout / seal
Silica sand backfill
Slotted tip
Slough
<250
250 - 500
500 - 1000
1000 - 2000
2000 - 4000
>4000
RELATIVE DENSITY / CONSISTENCY
Fissured:
Slickensided:
Blocky:
Disrupted:
Scattered:
Numerous:
BCN:
COMPONENT DEFINITIONS
Dry
Moist
Wet
1. Soil exploration logs contain material descriptions based on visual observation and field tests using a systemmodified from the Uniform Soil Classification System (USCS). Where necessary laboratory tests have beenconducted (as noted in the "Other Tests" column), unit descriptions may include a classification. Please refer to thediscussions in the report text for a more complete description of the subsurface conditions.
2. The graphic symbols given above are not inclusive of all symbols that may appear on the borehole logs.Other symbols may be used where field observations indicated mixed soil constituents or dual constituent materials.
COMPONENT SIZE / SIEVE RANGE COMPONENT SIZE / SIEVE RANGE
SYMBOLS
Sample/In Situ test types and intervals
Silt and Clay
Consistency
SAND / GRAVEL
Very Soft
Soft
Med. Stiff
Stiff
Very Stiff
Hard
Phone: 206.262.0370
Bottom of BoringBoulder:
Cobbles:
Gravel
Coarse Gravel:
Fine Gravel:
Sand
Coarse Sand:
Medium Sand:
Fine Sand:
Silt
Clay
> 12 inches
3 to 12 inches
3 to 3/4 inches
3/4 inches to #4 sieve
Atterberg Limit Test
Compaction Tests
Consolidation
Dry Density
Direct Shear
Fines Content
Grain Size
Permeability
Pocket Penetrometer
R-value
Specific Gravity
Torvane
Triaxial Compression
Unconfined Compression
Sand
50% or more of the coarsefraction passing the #4 sieve.Use dual symbols (eg. SP-SM)for 5% to 12% fines.
for In Situ and Laboratory Testslisted in "Other Tests" column.
50% or more of the coarsefraction retained on the #4sieve. Use dual symbols (eg.GP-GM) for 5% to 12% fines.
DESCRIPTIONS OF SOIL STRUCTURES
Well-graded GRAVEL
Poorly-graded GRAVEL
Silty GRAVEL
Clayey GRAVEL
Well-graded SAND
Poorly-graded SAND
Silty SAND
Clayey SAND
SILT
Lean CLAY
Organic SILT or CLAY
Elastic SILT
Fat CLAY
Organic SILT or CLAY
PEAT
ATT
Comp
Con
DD
DS
%F
GS
Perm
PP
R
SG
TV
TXC
UCC
LO
G
KE
Y
09
-
1
1
8
LO
G
.
G
P
J
P
A
N
G
E
O
.
G
D
T
11
/12
/1
3
Figure A-1
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Terms and Symbols for
Boring and Test Pit Logs
Phone: 206.262.0370LO
G
KE
Y
09
-
1
1
8
LO
G
.
G
P
J
P
A
N
G
E
O
.
G
D
T
11
/12
/1
3
Figure A-1a
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 4 inches of asphalt over gravel.
Medium dense, moist, brown, silty SAND; trace gravel and cobbles.
[FILL].
- Inflated blows due to cobble at approximately 2.5 feet.
Medium dense to dense, wet to very moist, grey brown to light brown,
silty fine SAND; trace gravel, trace iron-oxide staining.
- Groundwater at approximately 5 feet during drilling.
[WEATHERED VASHON TILL - Qgt].
Hard, very moist to moist, grey-brown to blue-grey, sandy SILT; trace
gravel, trace iron oxide staining in fragments.
- Relative Weathering: Residual Soil RVI.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Slightly Weathered RII.
Boring terminated at about 13.5 feet below grade. Groundwater
observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
31
22
24
8
9
9
19
32
50/6
19
41
50/2
45
50/6
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-2
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
13.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 404 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-1
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
>>
>>
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- Approximately 5 inches of asphalt over gravel.
Medium dense, moist, brown, silty SAND; trace gravel.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 4 feet.
Medium dense, wet to very moist, blue-grey, silty fine SAND; tracegravel.
- Hydrocarbon odor in Sample S-2.
Very dense, moist, light brown, silty fine SAND; trace gravel, trace
iron-oxide staining in gravel.
- Perched groundwater at approximately 11 feet.
Hard, moist, light grey, sandy SILT; trace gravel, laminated, traceiron-oxide staining.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
- Coarse sand pocket at approximately 13 feet.
Boring terminated at about 13.3 feet below grade. Perched
groundwater observed at about 4 feet and 11 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
8
8
7
4
4
7
18
23
34
24
25
50/5
37
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-3
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
13.3ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 402 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-2
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
>>
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- Approximately 6 inches of topsoil, concrete rubble near surface.
Medium dense, very moist to wet, brown to grey-brown, silty fine tomedium SAND; trace gravel, iron-oxide staining.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 6 feet.
Hard, moist, light grey, sandy SILT; trace gravel, laminated.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Sand-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 15.9 feet below grade. Perchedgroundwater observed at about 6 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
2
6
11
5
7
10
7
12
13
4
6
10
31
50/3
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-4
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.9ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 408 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-3
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 6 inches of topsoil, concrete rubble near surface.
Medium dense, very moist, grey to light brown, silty fine to mediumSAND; trace gravel.
[WEATHERED VASHON TILL - Qgt].
Medium dense to dense, very moist to wet, brown to grey-brown, silty
fine SAND with gravel; trace coarse sand pockets, laminated,iron-oxide staining in gravels.
- Perched groundwater at approximately 9 feet.
Boring terminated at about 11.5 feet below grade. Perched
groundwater observed at about 9 feet at time of drilling.
S-1
S-2
S-3
S-4
2
9
12
8
7
7
8
6
6
9
15
32
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-5
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 408 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-4
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 5 inches of asphalt over gravel.
Very loose, moist, grey to orange-brown, GRAVEL with silt; traceiron-oxide staining.
[FILL].
Medium dense, very moist to wet, light brown to light-grey, silty fine
SAND; trace gravel, coarse sand pockets.
- Perched groundwater at approximately 5 feet.
[WEATHERED VASHON TILL - Qgt].
Hard, moist, grey-brown, sandy SILT; trace gravel, iron-oxide stainingin gravel.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Sand-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 11.5 feet below grade. Perchedgroundwater observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
3
1
3
6
6
7
5
6
8
17
20
22
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-6
Ot
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t
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Sa
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p
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N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
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)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
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Bl
o
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/
6
i
n
.
~ 407 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-5
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 2 inches of asphalt over gravel.
Very loose, moist, grey to grey-brown, silty SAND; trace gravel, traceiron-oxide staining.
[WEATHERED VASHON TILL - Qgt].
- Manganese staining.
Medium dense, very moist to wet, grey-brown, silty SAND; trace
gravel, trace iron-oxide staining, slightly laminated.
- Perched groundwater at approximately 6 feet.
Very dense, moist, grey-brown, silty SAND; trace gravel, trace
iron-oxide staining in gravel.
- Large gravel crushed in tip of splitspoon at approximately 10 feet.
Boring terminated at about 11.5 feet below grade. Perched
groundwater observed at about 6 feet at time of drilling.
S-1
S-2
S-3
S-4
4
1
3
6
11
16
31
28
50/5
23
36
36
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-7
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
11.5ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 410 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-6
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 4 inches of asphalt over gravel.
Medium dense, moist, dark grey to brown, silty SAND; trace gravel.
[FILL].
Medium dense, very moist to wet , grey-brown, silty fine to medium
SAND; trace gravel, coarse sand pockets, trace iron-oxide staining,slightly laminated.
- Perched groundwater at approximately 5 feet.
[WEATHERED VASHON TILL - Qgt].
Hard, very moist to moist, grey-brown to grey, sandy SILT with gravel;iron-oxide staining in gravel, slightly laminated.
- Relative Weathering: Residual Soil RVI.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Highly Weathered RIV.
Boring terminated at about 15.8 feet below grade. Perchedgroundwater observed at about 5 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
8
9
8
5
10
9
5
12
10
14
19
27
29
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-8
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.8ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 409 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-7
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
- Approximately 5 inches of asphalt over gravel.
Medium dense, moist, grey to grey-brown, silty fine to medium SAND;trace gravel, iron-oxide staining, appears reworked.
[FILL].
Medium dense, very moist to wet, grey-brown, silty fine to medium
SAND; trace gravel, trace coarse sand pockets, trace iron-oxidestaining, slightly laminated.
[WEATHERED VASHON TILL - Qgt].
- Perched groundwater at approximately 6 feet.
- Perched groundwater at approximately 10 feet.
Hard, very moist, grey-brown to grey, sandy SILT with gravel; trace
coarse sand pockets.
[RESIDUAL SOIL/RENTON FORMATION - Ec2pg].
- Gravel-sized coal fragments.
- Relative Weathering: Residual Soil RVI.
Boring terminated at about 15.8 feet below grade. Perched
groundwater observed at about 6 feet and 10 feet at time of drilling.
S-1
S-2
S-3
S-4
S-5
7
11
14
8
6
6
10
10
10
5
6
6
30
50/4
Remarks: Borings drilled using an EC 95 track mounted drill rig. Standard penetration test
(SPT) sampler driven with a 140 lb safety hammer. Hammer operated with a rope andcathead mechanism. Surface elevations (NAVD88) estimated from ALTA/NSPS LandTitle Survey by Terrane dated January 11, 2019.
0
2
4
6
8
10
12
14
16
18
20
The stratification lines represent approximate boundaries. The transition may be gradual.
MATERIAL DESCRIPTION
Figure A-9
Ot
h
e
r
T
e
s
t
s
Sa
m
p
l
e
N
o
.
Completion Depth:
Date Borehole Started:
Date Borehole Completed:
Logged By:
Drilling Company:
De
p
t
h
,
(
f
t
)
Proposed Retail Development
19-122
Benson Drive South and Southeast Petrovitsky, Renton, WA
Northing: , Easting:
15.8ft
4/23/19
4/23/19
S. Scott
Boretec 1
Sheet 1 of 1
Project:
Job Number:
Location:
Coordinates:
Sy
m
b
o
l
Sa
m
p
l
e
T
y
p
e
Bl
o
w
s
/
6
i
n
.
~ 411 ft
N/A
HSA
SPT
Surface Elevation:
Top of Casing Elev.:
Drilling Method:
Sampling Method:
LOG OF TEST BORING PG-8
N-Value
0
Moisture LL
50
PL
RQD Recovery
100
>>
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson-Petrovitsky Retail
PRE22-000218
Renton, WA
Traffic Impact Analysis
October 4, 2022
Prepared for:
TA Benson Petro, LLC
2600 Dallas Parkway, Suite 370
Frisco, TX 75034
Prepared by:
TENW
Transportation Engineering NorthWest
11400 SE 8th Street, Suite 200
Bellevue, WA 98004
Office: (425) 889-6747
EXHIBIT 12
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page i
Table of Contents
FINDINGS/CONCLUSIONS ......................................................................................................1
INTRODUCTION......................................................................................................................2
Project Description................................................................................................................2
Project Approach..................................................................................................................2
Primary Data and Information Sources ......................................................................................3
EXISTING CONDITIONS...........................................................................................................6
Study Area..........................................................................................................................6
Roadway Network ...............................................................................................................6
Transit Service......................................................................................................................7
Non-Motorized Transportation Facilities ....................................................................................7
Collision History...................................................................................................................7
Traffic Volumes.....................................................................................................................8
Intersection Levels of Service .................................................................................................11
FUTURE CONDITIONS ............................................................................................................13
Planned Transportation Improvements .....................................................................................13
Project Trip Generation........................................................................................................13
Project Trip Distribution and Assignment ..................................................................................13
Future Traffic Volumes..........................................................................................................14
Future Level of Service .........................................................................................................23
Site Access Assessment........................................................................................................23
MITIGATION.........................................................................................................................25
Appendices
Appendix A – Detailed Collision History
Appendix B – Peak Hour Turning Movement Counts
Appendix C – Level of Service (LOS) Calculations
Appendix D – Trip Generation Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page ii
List of Figures and Tables
Figure 1 Project Site Vicinity .......................................................................................................4
Figure 2 Preliminary Site Plan .....................................................................................................5
Figure 3 2022 Existing AM Peak Hour Traffic Volumes....................................................................9
Figure 4 2022 Existing PM Peak Hour Traffic Volumes ..................................................................10
Figure 5 Peak Hour Project Trip Distribution (Inbound)....................................................................15
Figure 6 Peak Hour Project Trip Distribution (Outbound) .................................................................16
Figure 7 AM Peak Hour Project Trip Assignment...........................................................................17
Figure 8 PM Peak Hour Project Trip Assignment ...........................................................................18
Figure 9 2024 No Action AM Peak Hour Traffic Volumes..............................................................19
Figure 10 2024 No Action PM Peak Hour Traffic Volumes ............................................................20
Figure 11 2024 With Project AM Peak Hour Traffic Volumes.........................................................21
Figure 12 2024 With Project PM Peak Hour Traffic Volumes..........................................................22
Table 1 Existing Roadway Network Summary – Project Site Vicinity ..................................................7
Table 2 Collision Data Summary, January 1, 2019, to December 31, 2021.....................................8
Table 3 LOS Criteria for Signalized and Stop-Controlled Intersections1 ............................................11
Table 4 Existing 2022 Weekday Peak Hour LOS Summary ..........................................................12
Table 5 Trip Generation Summary............................................................................................13
Table 6 Project Trip Distribution................................................................................................14
Table 7 Year 2024 Weekday Peak Hour LOS Summary..............................................................23
Table 8 Year 2024 With Project Site Access Peak Hour LOS & Queue Summary..............................24
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 1
FINDINGS/CONCLUSIONS
This Traffic Impact Analysis (TIA) has been prepared for the proposed Benson-Petrovitsky Retail project
located on the northeast corner of Benson Dr S (108th Ave SE) and SE Petrovitsky Rd (SE Carr Rd) in
Renton, WA.
Project Proposal. The proposed Benson-Petrovitsky Retail project will include up to 4,088 square
feet (SF) of building area for a convenience market with gasoline pumps (8 vehicle fueling positions
(VFPs)) and a 2,850 SF bank with a drive-thru ATM lane. The existing site is vacant. Vehicular access
to/from the proposed development would be provided by two right-in right-out only driveways; one
on Benson Dr S and one on SE Petrovitsky Rd. The project is anticipated to be occupied by 2024.
Trip Generation. The proposed project is estimated to generate 1,085 net new weekday daily
trips, with 71 net new trips occurring during the weekday AM peak hour (37 entering, 34 exiting),
and 104 net new trips occurring during the weekday PM peak hour (52 entering, 52 exiting).
Future Year LOS. LOS analyses were conducted for future year 2024 weekday AM and PM peak
hour conditions at four signalized off-site study intersections. All study intersections are expected to
operate at acceptable levels during the weekday AM and PM peak hours in 2024 without or with
the proposed project.
Site Access Analysis. All controlled movements at the two site access driveways on Benson Dr S
and SE Petrovitsky Rd are expected to operate at LOC C or better in 2024 with minimal queueing.
Mitigation.
Transportation Impact Fees. To mitigate long-term traffic impacts, the City of Renton requires payment
of a traffic impact fee. The City’s currently adopted 2021-2022 impact fee rate is $139.77 per SF
for a drive-in bank and $65,313.08 per pump for a gas station with convenience store. Final
transportation impact fees will be paid based on the current impact fee rate at the time of building
permit issuance less any applicable transportation impact fee credit. Based on preliminary
correspondence with the City of Renton, the project will be eligible for transportation impact fee credit
for a portion of the frontage improvements being required on SE Petrovitsky Rd and Benson Dr S per
City Transportation Improvement Program (TIP) Project #31.
Frontage Improvements. The City has requested that the Benson-Petrovitsky Retail project dedicate
right-of-way and construct street improvements along the project frontages on both Benson Dr S and
SE Petrovitsky Rd. This will include a westbound right-turn lane along the SE Petrovitsky Rd frontage
and a complementary northbound receiving lane on the Benson Dr S frontage that will turn into a
merge lane north of the intersection. These improvements are part of the City’s planned improvements
for the Carr Road corridor (City TIP #31), and thus a portion of the construction costs would be
eligible for credit against the City transportation impact fees.
Access Improvements. The Benson-Petrovitsky Retail project will construct c-curbing on SE Petrovitsky
Rd to restrict the proposed site access on SE Petrovitsky Rd to right-in, right-out (RIRO) movements only.
Off-Site Improvements. Based on the results of the analysis, the existing transportation facilities are
anticipated to accommodate the additional traffic generated by the proposed project. Therefore, no
project-specific off-site transportation improvements are proposed.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 2
INTRODUCTION
This Traffic Impact Analysis (TIA) has been prepared for the proposed Benson-Petrovitsky Retail project
located on the northeast corner of Benson Dr S (108th Ave SE) and SE Petrovitsky Rd (SE Carr Rd) in
Renton, WA as shown in the Figure 1 Vicinity Map.
Project Description
The proposed Benson-Petrovitsky Retail project will include up to 4,088 square feet (SF) of building
area for a convenience market with gasoline pumps (8 vehicle fueling positions (VFPs)) and a 2,850
SF bank with a drive-thru ATM lane. The existing site is vacant.
Vehicular access to/from the proposed development would be provided by two right-in right-out only
driveways; one on Benson Dr S and one on SE Petrovitsky Rd. The project is anticipated to be
occupied by 2024. A preliminary site plan is provided in Figure 2.
Project Approach
The specific scope of work used in the evaluation of the traffic impacts of the proposed Benson-
Petrovitsky Retail were confirmed through scoping discussions with the City of Renton. To analyze the
traffic impacts from the project, the following tasks were undertaken:
Assessed existing conditions through field reconnaissance and reviewed existing planning
documents.
Described and assessed existing transportation conditions in the area.
Documented the latest 3-year collision history at off-site study intersections.
Documented existing (2022) traffic volumes and intersection levels of service (LOS) at off-site
study intersections during the weekday AM and PM peak hours.
Documented future planned transportation improvements in the project vicinity.
Developed trip generation estimates for weekday daily, AM, and PM peak hour conditions
based on the proposed land use.
Documented trip distribution and assignment of weekday AM and PM peak hour project-
generated traffic.
Documented traffic forecasts and assumptions for year 2024 conditions at off-site study
intersections without and with the proposed development.
Analyzed weekday AM and PM peak hour LOS for future year 2024 conditions without and
with the proposed development at off-site study intersections.
Assessed operations at the proposed site access locations, including LOS and queuing during
weekday AM and PM peak hour conditions.
Documented proposed traffic mitigation.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 3
Primary Data and Information Sources
2022 AM and PM peak hour traffic counts collected by IDAX.
City of Renton Comprehensive Plan Transportation Element, Adopted June 22, 2015
(Amended Dec. 10, 2018)
City of Renton 2022 - 2027 Six-Year Transportation Improvement Program.
Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition, 2021.
Highway Capacity Manual (HCM 6th Edition), 2016.
Washington State Department of Transportation (WSDOT) Collision Data, 2019-2021.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 4
Figure 1 Project Site Vicinity
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 5
Figure 2 Preliminary Site Plan
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 6
EXISTING CONDITIONS
Study Area
The existing transportation study area and roadway network providing access to the Benson-
Petrovitsky Retail site is shown on Figure 1. The off-site study intersections evaluated in this
transportation analysis were identified and agreed upon by the City of Renton as part of the traffic
scoping process. The four signalized off-site study intersections are as follows (see also Figure 3):
1. 106th Pl SE / SE Carr Rd
2. Benson Dr S / Benson Rd S
3. Benson Dr S (108th Ave SE/SR 515) / SE Petrovitsky Rd (SE Carr Rd)
4. 108th Ave SE / SE 180th St
Roadway Network
The primary anticipated travel routes to and from the Benson-Petrovitsky Retail site in the City of Renton
include SE Petrovitsky Rd (SE Carr Rd) and Benson Dr (108th Ave SE/SR 515).
Table 1 describes the existing characteristics of these roadways in terms of orientation, arterial
classification, posted speed limits, number of lanes, presence of street parking, pedestrian facilities,
and bicycle facilities. The relationship of these roadways to the project site is shown on Figure 1.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 7
Table 1
Existing Roadway Network Summary – Project Site Vicinity
Roadway Orientation Classification
Speed
Limit
(mph)
Number
Travel
Lanes
Street
Parking Sidewalks
Bicycle
Facilities
SE Petrovitsky
Rd (SE Carr Rd)
East/
West
Principal
Arterial 35 mph 5 None Both Sides None
Benson Dr S
(108th Ave SE
(SR 515)
North/
South
Principal
Arterial 40 mph 5 None Both Sides None
Transit Service
Public transportation in the immediate project vicinity is served by King County Metro. The closest
transit stops are located on SE Petrovitsky Rd across the street from the proposed project and on the
southeast corner of the Benson Dr S (108th Ave SE/SR 515)/SE Petrovitsky Rd (SE Carr Rd)
intersection. These stops provide access to King County Metro Transit routes 160 and 906.
Route 167 provides service between Renton and the University District. Weekday service currently
runs from 6:00 AM to 7:45 AM with approximately 30 minute headways.
DART Route 906 provides service between Fairwood, Valley Medical Center, Southcenter, and the
Tukwila Station. Weekday service currently runs from 4:45 AM to 10:45 PM with approximately 30
minute headways.
Non-Motorized Transportation Facilities
Non-motorized transportation facilities in the immediate project vicinity include sidewalks on both
sides of SE Petrovitsky Rd (SE Carr Rd) and Benson Dr S (108th Ave SE/SR 515). Crosswalks and
pedestrian push buttons are also provided at all signalized intersections in the project vicinity. No
bike lanes are provided along SE Petrovitsky Rd (SE Carr Rd) or Benson Dr S (108th Ave SE/SR
515).
Collision History
Historic collisions at the study intersections were analyzed for the three-year period from 2019 to
2021. Collision data was provided by WSDOT. Summaries of the total and yearly average collisions
during this period are provided in Table 2. The detailed collision history is included in Appendix A.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 8
Table 2
Collision Data Summary, January 1, 2019, to December 31, 2021
Study Intersection 20
1
9
20
2
0
20
2
1
3-Year
Total
Collisions
Avg.
Annual
Collisions
Est.
AWDT1
Collisions
per
MEV2
1. 106th Pl SE / SE Carr Rd 1 2 1 4 1.3 21,860 0.17
2. Benson Dr S / Benson Rd S 3 0 5 8 2.7 23,400 0.31
3. Benson Dr S (108th Ave SE/SR 515) / SE
Petrovitsky Rd (SE Carr Rd)
4 6 3 13 4.3 41,170 0.29
4. 108th Ave SE / SE 180th St 2 3 1 6 2.0 24,140 0.23
Source: WSDOT Collision Records.
1 AWDT = Average Weekday Daily Traffic. Estimated daily volumes are based on 2022 PM peak hour volumes and a K-factor of 10.
2 MEV = Million Entering Vehicles.
Intersection collision rates over 1.0 collision per MEV generally warrant further review to determine if
any patterns exist. Based on the collision data, none of the study intersections have a rate that exceeds
1.0 collision per MEV.
Traffic Volumes
Existing weekday AM and PM peak hour traffic volumes at the four off-site study intersections were
based on counts collected in August 2022. The AM peak hour represents the highest one-hour time
period between 7:00 and 9:00 AM. The PM peak hour represents the highest one-hour time period
between 4:00 and 6:00 PM. Figures 3 and 4 illustrate the existing 2022 weekday AM and PM
peak hour traffic volumes at the study intersections. Appendix B includes the existing AM and PM
peak hour traffic count sheets.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 9
Figure 3 2022 Existing AM Peak Hour Traffic Volumes
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Figure 4 2022 Existing PM Peak Hour Traffic Volumes
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Intersection Levels of Service
Existing weekday AM and PM peak hour level of service (LOS) analyses were conducted at the four
off-site study intersections. LOS generally refers to the degree of congestion on a roadway or
intersection. It is a measure of vehicle operating speed, travel time, travel delays, and driving comfort.
A letter scale from A to F generally describes intersection LOS. At signalized intersections, LOS A
represents free-flow conditions (motorists experience little or no delays), and LOS F represents forced-
flow conditions where motorists experience an average delay in excess of 80 seconds per vehicle.
The LOS reported for signalized intersections represents the average control delay (sec/veh) and can
be reported for the overall intersection, for each approach, and for each lane group (additional v/c
ratio criteria apply to lane group LOS only). The LOS reported at stop-controlled intersections is based
on the average control delay and can be reported for each controlled minor approach, controlled
minor lane group, and controlled major-street movement (and for the overall intersection at all-way
stop controlled intersections).
Table 3 outlines the current HCM 6th Edition LOS criteria for signalized and stop-controlled
intersections based on these methodologies.
Table 3
LOS Criteria for Signalized and Stop-Controlled Intersections1
SIGNALIZED INTERSECTIONS UNSIGNALIZED INTERSECTIONS
LOS by Volume-to
Capacity (V/C) Ratio2
LOS by Volume-to
Capacity (V/C) Ratio3
Control Delay
(sec/veh) 1.0 > 1.0
Control Delay
(sec/veh) 1.0 > 1.0
10 A F 10 A F
> 10 to 20 B F > 10 to 15 B F
> 20 to 35 C F > 15 to 25 C F
> 35 to 55 D F > 25 to 35 D F
> 55 to 80 E F > 35 to 50 E F
> 80 F F > 50 F F
1 Source: Highway Capacity Manual (6th Edition), Transportation Research Board, 2016.
2 For approach-based and intersection-wide assessments at signals, LOS is defined solely by control delay.
3 For two-way stop controlled intersections, the LOS criteria apply to each lane on a given approach and to each approach on the minor street. LOS is not calculated for major-street approaches or for the intersection as a whole at two-way stop
controlled intersections. For approach-based and intersection-wide assessments at all-way stop controlled intersections,
LOS is solely defined by control delay.
Level of service calculations at the off-site study intersections were calculated using Synchro 11 traffic
analysis software. Existing signal timing used in the analysis was provided by the City of Renton.
Based on the City of Renton and WSDOT’s LOS standards, the LOS standard is LOS E at all study
intersections because the Transportation Element of the City’s Comprehensive Plan specifies a
minimum standard of LOS E for the SE Carr Road and the State Route (SR) 515 (Benson Dr S)
corridors.
The 2022 existing weekday AM and PM peak hour LOS analysis results at the off-site study
intersections are summarized in Table 4. The 2022 existing detailed LOS worksheets are included
in Appendix C.
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Table 4
Existing 2022 Weekday Peak Hour LOS Summary
AM Peak Hour PM Peak Hour
Signalized Study Intersection LOS
Delay
(sec)LOS
Delay
(sec)
1. 106th Pl SE / SE Carr Rd B 10.4 B 13.6
2. Benson Dr S / Benson Rd S B 12.0 B 10.2
3. Benson Dr S (SR 515) / SE Petrovitsky Rd E 55.1 D 53.3
4. 108th Ave SE / SE 180th St B 10.4 B 16.6
As shown in Table 4, all four signalized study intersections currently operate at LOS E or better during
the weekday AM and PM peak hours.
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FUTURE CONDITIONS
Planned Transportation Improvements
This section documents the known planned transportation improvements in the study area. Based on
a review of the City of Renton’s 2022-2027 Transportation Improvement Program (TIP), there is one
planned improvement in the vicinity of the proposed project:
TIP #31: Carr Road Improvements (Davis Ave S to 109th Ave SE)
Description:
Potential roadway improvements are still being identified but may include roadway
realignment/widening at several locations to address geometric deficiencies, widening to
5-lane roadway (2 lanes westbound, 3 lanes eastbound), and bicycle lanes on new
alignment. The project is in the planning stage.
Project Trip Generation
The trip generation estimates for the proposed Benson-Petrovitsky Retail project were based on
methodology documented in the Institute of Transportation Engineers (ITE) Trip Generation Manual,
11th Edition (2021) for Land Use Code (LUC) 945 (Convenience Store/Gas Station), and LUC 912
(Drive-In Bank). Adjustments were made to the trip generation estimates to account for pass-by trips.
Pass-by Trips are trips that are made by vehicles that are already on the adjacent streets and make
intermediate stops at the commercial uses on route to a primary destination (i.e. on the way from
work to home). The pass-by trips estimated in the trip generation calculations were based on studies
included in the appendices of the ITE Trip Generation Manual, 11th Edition (2021).
The resulting net new weekday daily, AM peak hour, and PM peak hour trip generation estimates
for the proposed project are summarized in Table 5. Detailed trip generation calculations are
included in Appendix D.
Table 5
Trip Generation Summary
Net New Trips Generated
Weekday Time Period In Out Total
Daily 543 542 1,085
AM Peak Hour 37 34 71
PM Peak Hour 52 52 104
Project Trip Distribution and Assignment
The distribution and assignment of the new weekday AM and PM peak hour trips generated by the
proposed Benson-Petrovitsky Retail project was estimated based on existing and anticipated travel
patterns in the vicinity of the site and confirmed by City of Renton staff as part of the traffic scoping
for the project. Table 6 summarizes the resulting general trip distribution patterns.
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Table 6
Project Trip Distribution
Route (Direction)Trip Distribution
Benson Dr S (north)25%
108th Ave SE (south)25%
SE Carr Rd (west)25%
SE Petrovitsky Rd (east)25%
TOTAL 100%
The estimated Benson-Petrovitsky Retail peak hour inbound project trip distribution is illustrated in
Figure 5 and the outbound project trip distribution is illustrated in Figure 6. Based on the trip
distribution percentages shown in Table 6 and Figures 5 and 6, the net new weekday AM and PM
peak hour project trips were assigned to the streets in the project vicinity. The resulting assignment of
the net new AM and PM peak hour net new project trips is shown in Figures 7 and 8, respectively.
Future Traffic Volumes
The proposed Benson-Petrovitsky Retail project is anticipated to be occupied by 2024.
Year 2024 No Action (without project) peak hour traffic volumes were estimated by applying a 1.5
percent annual background growth rate to the existing volumes (confirmed by City Staff as part of
traffic scoping). In addition, the City confirmed that there are no significant pipeline projects in the
vicinity that needed to be included in the No Action traffic volumes.
The resulting future 2024 No Action AM and PM peak hour traffic volumes are shown in Figures 9
and 10. The 2024 With Project traffic volumes were determined by adding the trip assignment from
the proposed development (shown in Figures 7 and 8) to the future 2024 No Action traffic volumes.
The resulting 2024 With Project AM and PM peak hour traffic volumes at the off-site study
intersections and proposed site access driveways are shown in Figures 11 and 12.
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Figure 5 Peak Hour Project Trip Distribution (Inbound)
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Figure 6 Peak Hour Project Trip Distribution (Outbound)
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Figure 7 AM Peak Hour Project Trip Assignment
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Figure 8 PM Peak Hour Project Trip Assignment
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Figure 9 2024 No Action AM Peak Hour Traffic Volumes
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Figure 10 2024 No Action PM Peak Hour Traffic Volumes
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Figure 11 2024 With Project AM Peak Hour Traffic Volumes
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Figure 12 2024 With Project PM Peak Hour Traffic Volumes
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Future Level of Service
Future year 2024 Level of Service (LOS) analyses were conducted at the four off-site study intersections
for weekday AM and PM peak hour No Action (without project) conditions and With Project
conditions. Existing intersection geometry was assumed at all study intersections except Benson Dr
S/SE Petrovitsky Rd as there are no planned improvements identified to be completed by 2024.
However, at Benson Dr S/SE Petrovitsky Rd, the with-project intersection geometry assumes a
westbound right-turn lane and a complementary northbound receiving lane that will turn into a merge
lane are constructed as part of the Benson-Petrovitsky Retail project.
Existing signal timing plans provided by the City of Renton and WSDOT were used in the analysis
except at Benson Dr S/SE Petrovitsky Rd where the with-project timing was optimized with the
planned improvements (cycle length was left the same as existing). The 2024 weekday AM and PM
peak hour LOS results at the study intersections without and with the proposed project are summarized
in Table 7. The LOS worksheets are included in Appendix C.
Table 7
Year 2024 Weekday Peak Hour LOS Summary
No Action With Project
Signalized Study Intersection LOS
Delay
(sec)LOS
Delay
(sec)
AM PEAK HOUR
1. 106th Pl SE / SE Carr Rd B 10.4 B 10.4
2. Benson Dr S / Benson Rd S B 12.5 B 12.6
3. Benson Dr S (108th Ave SE) / Petrovitsky Rd (SE Carr Rd)E 61.1 E 69.9
4. 108th Ave SE / SE 180th St B 10.5 B 11.0
PM PEAK HOUR
1. 106th Pl SE / SE Carr Rd B 13.7 B 13.7
2. Benson Dr S / Benson Rd S B 10.3 B 10.3
3. Benson Dr S (108th Ave SE) / SE Petrovitsky Rd (SE Carr
Rd)
E 59.0 E 63.0
4. 108th Ave SE / SE 180th St B 17.2 B 18.1
As shown in Table 7, all four signalized study intersections are expected to operate at acceptable
levels of service (LOS E or better) during the weekday AM and PM peak hours in 2024 with or
without the proposed Benson-Petrovitsky Retail project.
Site Access Assessment
Vehicular access to/from the proposed Benson-Petrovitsky Retail project is proposed via two right-in
right-out only driveways; one on Benson Dr S and one on SE Petrovitsky Rd. To assess the operations
of the site access locations, level of service (LOS) and queuing were analyzed.
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LOS and Queuing Analysis at Site Access
The LOS and queue calculations were conducted using Synchro 11 software based on methodology
outlined in the latest edition of the Highway Capacity Manual (6th Edition). The reported queues are
estimated 95th percentile queues that are exceeded only 5 percent of the time.
Table 8 summarizes the results of the 2024 with project LOS and queue analyses at the site access
driveways. The LOS and queue calculation sheets are included in Appendix C.
Table 8
Year 2024 With Project Site Access Peak Hour LOS & Queue Summary
AM Peak Hour PM Peak Hour
Site Access Controlled Movements LOS
Delay
(sec)
95th %
Queue
(ft)1 LOS
Delay
(sec)
95th %
Queue
(ft)1
A. Site Access Driveway / Benson Dr S
Westbound Right-Turn (exiting)C 18.2 <25’B 12.5 <25’
B. Site Access Driveway / SE Petrovitsky Rd
Southbound Right-Turn (exiting)B 14.4 <25’B 12.9 25’
1 Queues are 95th percentile queues. < 25’ indicates 95th percentile queue statistically less than 1 vehicle.
As shown in Table 8, all controlled movements at the two site access driveways are expected to
operate at LOS C or better with minimal queueing in 2024 during the weekday AM and PM peak
hours.
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MITIGATION
The following measures are identified to mitigate transportation impacts of the proposed Benson-Petrovitsky
Retail project.
Transportation Impact Fees. To mitigate long-term traffic impacts, the City of Renton requires payment
of a traffic impact fee. The City’s currently adopted 2021-2022 impact fee rate is $139.77 per SF
for a drive-in bank and $65,313.08 per pump for a gas station with convenience store. Final
transportation impact fees will be paid based on the current impact fee rate at the time of building
permit issuance less any applicable transportation impact fee credit. Based on preliminary
correspondence with the City of Renton, the project will be eligible for transportation impact fee credit
for a portion of the frontage improvements being required on SE Petrovitsky Rd and Benson Dr S per
City Transportation Improvement Program (TIP) Project #31.
Frontage Improvements. The City has requested that the Benson-Petrovitsky Retail project dedicate
right-of-way and construct street improvements along the project frontages on both Benson Dr S and
SE Petrovitsky Rd. This will include a westbound right-turn lane along the SE Petrovitsky Rd frontage
and a complementary northbound receiving lane on the Benson Dr S frontage that will turn into a
merge lane north of the intersection. These improvements are part of the City’s planned improvements
for the Carr Road corridor (City TIP #31), and thus a portion of the construction costs would be
eligible for credit against the City transportation impact fees.
Access Improvements. The Benson-Petrovitsky Retail project will construct c-curbing on SE Petrovitsky
Rd to restrict the proposed site access on SE Petrovitsky Rd to right-in, right-out (RIRO) movements only.
Off-Site Improvements. Based on the results of the analysis, the existing transportation facilities are
anticipated to accommodate the additional traffic generated by the proposed project. Therefore, no
project-specific off-site transportation improvements are proposed.
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Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix A
Detailed Collision History
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OFFICER REPORTED CRASHES THAT OCCURRED at OR in the vicinity of MULTIPLE INTERSECTIONS & ROAD SEGMENTS IN THE CITY OF RENTON
01/01/2017 - Avail 2022 See 2nd tab below for road info
JURISDICTION
PRIMARY
TRAFFICWAY
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NUMBER
INTERSECTING
TRAFFICWAY
DIST
FROM
REF
POINT
MI
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FT
COMP
DIR
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REF
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REFERENCE POINT
NAME MILEPOST DATE MOST SEVERE INJURY TYPE
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S VEHICLE 1 TYPE VEHICLE 2 TYPE FIRST COLLISION TYPE / OBJECT STRUCK VEHICLE 1 ACTION VEHICLE 2 ACTION
VEHICLE 1
COMPASS
DIRECTION FROM
VEHICLE 1
COMPASS
DIRECTION TO
VEHICLE 2
COMPASS
DIRECTION FROM
VEHICLE 2
COMPASS
DIRECTION TO
City Street SE PETROVITSKY RD 10900 109TH AVE SE 10/14/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Left Turn Going Straight Ahead South West West East
City Street SE PETROVITSKY RD 0 109TH AVE SE 01/28/2019 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead West East West East
City Street SE PETROVITSKY RD 0 111TH AVE SE 06/28/2019 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - one stopped - head-on Going Straight Ahead Stopped for Traffic East West Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 11022 111TH AVE SE 10/14/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Left Turn Making Left Turn East South South West
City Street SE PETROVITSKY RD 11196 113TH PL SE 10/12/2021 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead East West East West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 09/14/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead West East North South
City Street SE PETROVITSKY RD 11518 116TH AVE SE 12/12/2021 Suspected Minor Injury 1 0 2 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Making Left Turn West East South West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 09/23/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead West North East West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 11/12/2020 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign West East Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 0 116TH AVE SE 06/26/2019 Suspected Serious Injury 2 0 3 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Left Turn Going Straight Ahead South West West East
City Street SE PETROVITSKY RD 11518 116TH AVE SE 11/15/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Going Straight Ahead West East North South
City Street SE PETROVITSKY RD 0 116TH AVE SE 07/29/2019 Possible Injury 1 0 4 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Stopped for Traffic East West Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 11600 116TH AVE SE 09/21/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead East West North South
State Route 515 5.14 02/23/2020 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - one left turn - one straight Making Left Turn Going Straight Ahead North East North South
State Route 515 5.14 06/17/2020 No Apparent Injury 0 0 3 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead South North South North
State Route 515 5.14 11/13/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Stopped at Signal or Stop Sign East West North Vehicle Stopped
State Route 515 5.14 05/28/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Truck Tractor From same direction - both going straight - both moving - rear-end Changing Lanes Going Straight Ahead East West East West
State Route 515 5.14 09/23/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign South North Vehicle Stopped Vehicle Stopped
State Route 515 5.14 04/03/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Same direction -- both turning left -- both moving -- sideswipe Making Left Turn Making Left Turn West North West North
State Route 515 5.14 05/11/2019 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead West East South North
State Route 515 5.14 07/20/2019 Suspected Minor Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Right Turn Stopped for Traffic South East Vehicle Stopped Vehicle Stopped
State Route 515 5.14 08/11/2021 No Apparent Injury 0 0 3 0 0 Passenger Car Passenger Car From same direction - both going straight - one stopped - sideswipe Going Straight Ahead Stopped at Signal or Stop Sign East West Vehicle Stopped Vehicle Stopped
State Route 515 5.14 03/03/2020 Suspected Minor Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign Vehicle Stopped Vehicle Stopped
State Route 515 5.14 07/10/2019 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Making Left Turn East West North East
State Route 515 5.14 09/05/2021 Suspected Minor Injury 2 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From opposite direction - one left turn - one straight Going Straight Ahead Making Left Turn North South South West
State Route 515 5.15 02/15/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Right Turn Stopped at Signal or Stop Sign East North South West
State Route 515 5.22 03/31/2019 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Making Right Turn Going Straight Ahead West South North South
State Route 515 5.23 07/25/2020 Suspected Minor Injury 2 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Making Right Turn Slowing North South West East
State Route 515 5.29 03/16/2021 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 01/21/2019 Possible Injury 2 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 11/07/2021 Unknown 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - all others Making U-Turn Making Left Turn
State Route 515 5.29 01/07/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - rear-end Starting in Traffic Lane Starting in Traffic Lane Vehicle Stopped South Vehicle Stopped South
State Route 515 5.29 07/29/2019 Possible Injury 2 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - all others Making U-Turn Going Straight Ahead South South South North
State Route 515 5.29 03/31/2021 Suspected Serious Injury 1 0 2 0 0 Passenger Car Truck (Flatbad,Van,etc) From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 06/21/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Right Turn Going Straight Ahead East North South North
State Route 515 5.29 10/08/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign Southeast Northwest Southeast Vehicle Stopped
Under 23 U.S. Code § 148 and 23 U.S. Code § 407, safety data, reports, surveys, schedules, lists compiled or collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential crash sites, hazardous roadway conditions, or railway-highway crossings are not subject to discovery or admitted into evidence in a Federal or State court proceeding or considered for other purposes in
any action for damages arising from any occurrence at a location mentioned or addressed in such reports, surveys, schedules, lists, or
WSDOT - Transportation Data, GIS and Modeling Office
Crash Data and Reporting Branch - KM 08/31/2022 1 of 1
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OFFICER REPORTED CRASHES THAT OCCURRED at OR in the vicinity of THE FOLLOWING INTERSECTIONS IN THE CITY OF RENTON
01/01/2018 - available 2022
JURISDICTION
PRIMARY
TRAFFICWAY
BLOCK
NUMBER
INTERSECTING
TRAFFICWAY
DIST
FROM
REF
POINT
MI
or
FT
COMP
DIR
FROM
REF
POINT
REFERENCE
POINT NAME MILEPOST DATE MOST SEVERE INJURY TYPE
#
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B
I
K
E
S VEHICLE 1 TYPE VEHICLE 2 TYPE FIRST COLLISION TYPE / OBJECT STRUCK VEHICLE 1 ACTION VEHICLE 2 ACTION
VEHICLE 1
COMPASS
DIRECTION FROM
VEHICLE 1
COMPASS
DIRECTION
TO
VEHICLE 2
COMPASS
DIRECTION FROM
VEHICLE 2
COMPASS
DIRECTION TO
City Street 106TH PL SE 18564 SE CARR RD 11/14/2021 Suspected Minor Injury 1 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Going Straight Ahead East West South North
City Street SE CARR RD 0 106TH PL SE 03/09/2019 Possible Injury 1 0 2 0 0 Motorcycle Pickup,Panel Truck or Vanette under 10,000 lb Vehicle overturned Going Straight Ahead Changing Lanes West East West East
City Street SE CARR RD 0 106TH PL SE 05/08/2020 Possible Injury 4 0 4 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead Northeast Southwest Southeast Northwest
City Street SE CARR RD 10622 106TH PL SE 10/06/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Left Turn Going Straight Ahead North East East West
State Route 515 4.88 10/08/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - rear-end Going Straight Ahead Slowing North South North South
State Route 515 4.88 04/05/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - both moving - rear-end Going Straight Ahead Changing Lanes South North South North
State Route 515 4.88 05/07/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign North South Vehicle Stopped Vehicle Stopped
State Route 515 4.88 12/02/2021 Suspected Minor Injury 1 0 1 0 1 Pickup,Panel Truck or Vanette under 10,000 lb Vehicle Strikes Pedalcyclist Going Straight Ahead South North
State Route 515 4.88 02/05/2020 Suspected Serious Injury 3 0 4 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign North South Vehicle Stopped Vehicle Stopped
State Route 515 4.88 01/24/2020 Possible Injury 1 0 1 0 1 Passenger Car Vehicle Strikes Pedalcyclist Going Straight Ahead South North
Under 23 U.S. Code § 148 and 23 U.S. Code § 407, safety data, reports, surveys, schedules, lists compiled or
collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential crash sites,
hazardous roadway conditions, or railway-highway crossings are not subject to discovery or admitted into evidence
in a Federal or State court proceeding or considered for other purposes in any action for damages arising from any
occurrence at a location mentioned or addressed in such reports, surveys, schedules, lists, or data.
WSDOT - Transportation Data, GIS and Modeling Office
Crash Data and Reporting Branch - JB 08/30/2022 1 of 1
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Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix B
Peak Hour Turning Movement Counts
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
0
4
2
0
8
4
3
22
145001432
2 7
Peak Hour 54 33 4 1 92 0 1
1 0 0 1 6 7Count Total 103 62 4 3 172 0
3 0 00000008:45 AM 17 12 0 0 29
0 0 2 1 0 1
2
8:30 AM 12 9 0 1 22 0 0 0
0 0 0 1 3 2
0 0
8:15 AM 12 9 1 0 22 0 0
1 0 0 1 0 0
0 0 1
8:00 AM 13 10 1 1 25 0
0 0 0 0 0 1
0 0 2
0
7:30 AM 18 7 0 0 25 0 0 0
0 0 0 0 0 0
0 15 0
EB WB NB SB Total East
7:45 AM 11 7 2 0 20
0 0 2
-3%0%HV%0%6%12%0%-
0 1
7:15 AM 9 4 0 1 14 0 0
0 0 0 0 0 0
West North South
7:00 AM 11 4 0
0
71 20 63 0 35 1141014825210
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
3%-0%9%0%6%0%4%10%
Peak
Hour
All 1 16 444
51 0 130 33 107 0
0 0 1 0 92 03120202
14 1,576 0
HV 0 1 53 0 0
Count Total 1 33 884 86 0 30 1,596 58 25 38 3,072 0
442 1,57631205660919315012
6 1 9 371 1,542
8:45 AM 0 9 153 19
7 0 13 4 15 0
383 1,576
8:30 AM 0 6 128 11 0 1 170
5 21 0 14 2 2041885022
8 5 5 380 1,569
8:15 AM 1 5 99 15
4 0 17 9 15 0
408 1,496
8:00 AM 0 1 123 8 0 5 180
4 10 0 5 1 2042327019
8 3 5 405 0
7:45 AM 0 5 109 10
5 0 13 2 17 0
376 0
7:30 AM 0 5 113 8 0 1 225
5 15 0 6 3 5042215019
6 4 4 307 0
7:15 AM 0 1 83 9
3 0 15 1 2 07:00 AM 0 1 76 6 0 2 187
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 1.7%0.83
TOTAL 5.8%0.97
TH RT
WB 3.8%0.88
NB 2.6%0.80
Peak Hour: 7:30 AM 8:30 AM
HV %:PHF
EB 10.8%0.95
0
0
0
0 0 0
000
0
1
0
2
5
3 4
N
106th Pl SE
SE Carr Rd
SE Carr Rd
Dr
i
v
e
w
a
y
SE Carr Rd
10
6
t
h
P
l
S
E
1,576TEV:
0.97PHF:
14 11 35
60 57
0
21
825
14
860
5420
632071
15
4
66
0
41
444
16
502
911 1
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 1 0
000 0 1 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 1 0
0 0 0
0
THLT
1000000
1 00000
0 0
0 0
Peak Hour
0 0Count Total
0
100000000
0 1
8:45 AM
0 0 0 0
1
8:30 AM
0000000
1 1
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
92 0
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One Hour
0 2 0 0 1 00031202
RTTHLT RTTHLTRT
0 1 2 172 0
Peak Hour 0 1 53 0
5 0 2 0 2 0Count Total 0 1 100 2 0 0 57
29 98000000009300
0 0 1 22 89
8:45 AM 0 0 16 1
0 0 0 0 0 0
22 92
8:30 AM 0 0 12 0 0 0 9
0 1 0 0 0 0008100
0 1 0 25 84
8:15 AM 0 0 12 0
1 0 0 0 1 0
20 74
8:00 AM 0 0 13 0 0 0 9
0 0 0 0 0 0007002
0 0 0 25 0
7:45 AM 0 0 11 0
0 0 0 0 0 0
14 0
7:30 AM 0 1 17 0 0 0 7
0 0 0 0 0 1004000
0 0 0 15 0
7:15 AM 0 0 8 1
0 0 0 0 0 0
TH RT
7:00 AM 0 0 11 0 0 0 4
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
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Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
4
8
7
6
8
4
5
4
46
218000850
3 13
Peak Hour 13 17 4 2 36 0 0
0 0 0 0 14 16Count Total 25 33 7 3 68 0
0 0 20000025:45 PM 2 6 1 1 10
0 0 3 1 0 1
2
5:30 PM 4 5 2 0 11 0 0 0
0 0 0 2 0 0
0 3
5:15 PM 3 4 0 0 7 0 0
0 0 0 0 1 4
4 0 1
5:00 PM 4 2 1 1 8 0
0 0 0 0 0 1
4 0 2
0
4:30 PM 4 4 1 0 9 0 0 0
0 0 0 3 2 3
1 11 0
EB WB NB SB Total East
4:45 PM 1 3 0 0 4
0 0 1
-4%0%HV%-0%1%1%-
0 2
4:15 PM 3 3 2 0 8 0 0
0 0 0 0 1 1
West North South
4:00 PM 4 6 0
0
77 34 117 0 51 61168060580310
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
1%-0%2%3%2%0%3%3%
Peak
Hour
All 0 22 952
57 0 165 72 227 0
0 0 1 1 36 01610301
33 2,186 0
HV 0 0 11 2 0
Count Total 1 48 1,837 297 0 103 1,118 99 124 65 4,213 0
567 2,1868300916602115211019
13 25 4 538 2,102
5:45 PM 0 6 248 41
7 0 17 13 28 0
536 2,092
5:30 PM 0 4 236 35 0 9 147
7 28 0 18 10 80131365020
11 10 15 545 2,067
5:15 PM 0 7 239 45
8 0 21 6 31 0
483 2,027
5:00 PM 0 5 229 47 0 17 145
9 33 0 10 21 5091377026
8 8 6 528 0
4:45 PM 0 7 182 37
7 0 19 7 26 0
511 0
4:30 PM 0 8 256 33 0 11 139
13 27 0 13 18 110101238029
17 16 10 505 0
4:15 PM 0 5 229 25
4 0 14 9 24 04:00 PM 1 6 218 34 0 13 139
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 1.4%0.86
TOTAL 1.6%0.96
TH RT
WB 2.5%0.91
NB 1.8%0.98
Peak Hour: 5:00 PM 6:00 PM
HV %:PHF
EB 1.1%0.97
0
0
0
0 0 0
000
0
0
0
0
8
5 8
N
106th Pl SE
SE Carr Rd
SE Carr Rd
Dr
i
v
e
w
a
y
SE Carr Rd
10
6
t
h
P
l
S
E
2,186TEV:
0.96PHF:
33 61 51
14
5 87
0
31
580
60
671
1,1200
11
73477
22
8
28
9
0
168
952
22
1,142
690 0
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
36 0
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One Hour
0 1 0 0 1 10016103
RTTHLT RTTHLTRT
0 2 1 68 0
Peak Hour 0 0 11 2
1 0 5 0 2 0Count Total 0 0 23 2 0 1 31
10 36000010005101
0 0 0 11 30
5:45 PM 0 0 1 1
0 0 1 0 1 0
7 28
5:30 PM 0 0 4 0 0 0 5
0 0 0 0 0 0004000
0 0 1 8 29
5:15 PM 0 0 2 1
0 0 1 0 0 0
4 32
5:00 PM 0 0 4 0 0 0 2
0 0 0 0 0 0003000
0 0 0 9 0
4:45 PM 0 0 1 0
0 0 1 0 0 0
8 0
4:30 PM 0 0 4 0 0 0 4
0 1 0 0 0 0003001
0 1 0 11 0
4:15 PM 0 0 3 0
0 0 0 0 0 0
TH RT
4:00 PM 0 0 4 0 0 1 5
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
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to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
2
0
1
0
0
0
0
2
5
30000012
2 0
Peak Hr 0 9 41 24 74 0 0
0 0 0 0 0 3Count Total 0 18 100 33 151 0
2 0 00000008:45 AM 0 3 19 4 26
0 0 0 0 0 0
0
8:30 AM 0 3 18 1 22 0 0 0
0 0 0 0 0 0
0 0
8:15 AM 0 2 11 2 15 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 0 1 11 2 14 0
0 0 0 0 0 0
0 1 0
0
7:30 AM 0 1 8 5 14 0 0 0
0 0 0 0 0 0
8 26 0
EB WB NB SB Total East
7:45 AM 0 5 7 5 17
0 0 0
--2%HV%-----
1 0
7:15 AM 0 1 10 6 17 0 0
0 0 0 0 0 1
West North South
7:00 AM 0 2 16
9
0 1,325 275 0 32 340002490530
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
4%-0%7%-3%4%-0%
Peak
Hour
All 0 0 0
86 1 0 2,536 541 0
0 0 24 0 74 000002912
0 2,274 0
HV 0 0 0 0 0
Count Total 0 0 0 0 0 451 0 61 765 0 4,441 0
560 2,1672766901313400620600
5 95 0 529 2,185
8:45 AM 0 0 0 0
12 0 0 305 53 0
560 2,246
8:30 AM 0 0 0 0 0 59 0
324 73 0 8 104 00420900
3 92 0 518 2,258
8:15 AM 0 0 0 0
6 1 0 306 71 0
578 2,274
8:00 AM 0 0 0 0 0 39 0
339 51 0 4 100 00750900
11 92 0 590 0
7:45 AM 0 0 0 0
21 0 0 323 82 0
572 0
7:30 AM 0 0 0 0 0 61 0
321 78 0 9 85 006301600
8 63 0 534 0
7:15 AM 0 0 0 0
7 0 0 342 64 07:00 AM 0 0 0 0 0 50 0
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
SB 6.5%0.89
TOTAL 3.3%0.96
TH RTUTLTTHRTUTLT
WB 3.0%0.90
NB 2.6%0.99
Peak Hour: 7:00 AM 8:00 AM
HV %:PHF
EB --
Date: 09/01/2022
Peak Hour Count Period: 7:00 AM 9:00 AMN
SR 515 (Benson Dr S)
Benson Rd S
Benson Rd S
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
2,274TEV:
0.96PHF:
34
0
32
37
2
1,
3
7
8
0
53
249 302
3070
27
5
1,
3
2
5
1,
6
0
0
58
9
0
0 0
00
0
0
2
0
1 0
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0Count Total 0 0 0 0 0 0 0 0
0000000
0 0
8:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
8:30 AM 0 0 0 0 0 0
0 0 0 0 0 08:15 AM 0 0 0 0 0
0 0 0 0 0 0
0
8:00 AM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
7:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
7:30 AM 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0
7:15 AM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
7:00 AM 0 0 0 0
Westbound Northbound Southbound
LT TH RT LT TH RT LT
74 0
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastbound
29 12 0 0 24 0090000
0 33 0 151 0
Peak Hour 0 0 0 0
0 0 0 77 23 0Count Total 0 0 0 0 0 18 0
26 771540040030000
0 1 0 22 68
8:45 AM 0 0 0 0
0 0 0 17 1 0
15 60
8:30 AM 0 0 0 0 0 3 0
9 2 0 0 2 0020000
0 2 0 14 62
8:15 AM 0 0 0 0
0 0 0 7 4 0
17 74
8:00 AM 0 0 0 0 0 1 0
7 0 0 0 5 0050000
0 5 0 14 0
7:45 AM 0 0 0 0
0 0 0 4 4 0
17 0
7:30 AM 0 0 0 0 0 1 0
7 3 0 0 6 0010000
0 8 0 26 0
7:15 AM 0 0 0 0
0 0 0 11 5 0
TH RT
7:00 AM 0 0 0 0 0 2 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
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to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
1
0
0
2
0
3
1
7
30000003
5 0
Peak Hr 0 2 10 14 26 0 0
0 0 0 0 1 1Count Total 0 4 20 20 44 0
1 0 00000005:45 PM 0 0 2 3 5
0 0 1 0 2 0
0
5:30 PM 0 1 1 1 3 0 0 0
0 0 0 0 0 0
2 0
5:15 PM 0 1 2 1 4 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 0 0 3 1 4 0
0 0 0 0 0 0
0 0 0
0
4:30 PM 0 1 4 5 10 0 0 0
0 0 0 0 0 1
1 6 0
EB WB NB SB Total East
4:45 PM 0 1 0 4 5
0 0 0
--1%HV%-----
0 0
4:15 PM 0 0 3 4 7 0 0
0 0 0 0 0 0
West North South
4:00 PM 0 0 5
2
0 629 283 0 49 1,088002720190
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
2%-2%1%-1%1%-0%
Peak
Hour
All 0 0 0
39 0 0 1,250 519 0
0 1 13 0 26 0000055
0 2,340 0
HV 0 0 0 0 0
Count Total 0 0 0 0 1 494 0 86 2,081 0 4,470 0
524 2,131160560823601590400
13 238 0 518 2,194
5:45 PM 0 0 0 0
4 0 0 154 63 0
539 2,289
5:30 PM 0 0 0 0 0 46 0
166 61 0 6 244 00570500
11 244 0 550 2,340
5:15 PM 0 0 0 0
7 0 0 140 65 0
587 2,339
5:00 PM 0 0 0 0 0 83 0
169 63 0 10 285 00540600
15 275 0 613 0
4:45 PM 0 0 0 0
1 0 0 169 80 0
590 0
4:30 PM 0 0 0 0 0 73 0
151 75 0 13 284 00620500
10 275 0 549 0
4:15 PM 0 0 0 0
7 0 0 141 56 04:00 PM 0 0 0 0 0 60 0
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
SB 1.2%0.96
TOTAL 1.1%0.95
TH RTUTLTTHRTUTLT
WB 0.7%0.81
NB 1.1%0.92
Peak Hour: 4:15 PM 5:15 PM
HV %:PHF
EB --
Date: 09/01/2022
Peak Hour Count Period: 4:00 PM 6:00 PMN
SR 515 (Benson Dr S)
Benson Rd S
Benson Rd S
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
2,340TEV:
0.95PHF:
1,
0
8
8
49
1,
1
3
7
64
8
0
19
272 291
3320
28
3
62
9
91
2
1,
3
6
0
0
0 0
00
0
0
3
0
0 0
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0Count Total 0 0 0 0 0 0 0 0
0000000
0 0
5:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
5:30 PM 0 0 0 0 0 0
0 0 0 0 0 05:15 PM 0 0 0 0 0
0 0 0 0 0 0
0
5:00 PM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
4:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
4:30 PM 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0
4:15 PM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
4:00 PM 0 0 0 0
Westbound Northbound Southbound
LT TH RT LT TH RT LT
26 0
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastbound
5 5 0 1 13 0020000
1 19 0 44 0
Peak Hour 0 0 0 0
0 0 0 13 7 0Count Total 0 0 0 0 0 4 0
5 16200030000000
0 1 0 3 16
5:45 PM 0 0 0 0
0 0 0 0 1 0
4 23
5:30 PM 0 0 0 0 0 1 0
2 0 0 0 1 0010000
0 1 0 4 26
5:15 PM 0 0 0 0
0 0 0 3 0 0
5 28
5:00 PM 0 0 0 0 0 0 0
0 0 0 0 4 0010000
0 5 0 10 0
4:45 PM 0 0 0 0
0 0 0 2 2 0
7 0
4:30 PM 0 0 0 0 0 1 0
0 3 0 1 3 0000000
0 1 0 6 0
4:15 PM 0 0 0 0
0 0 0 4 1 0
TH RT
4:00 PM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
4
4
2
1
2
0
7
10
30
54000010
6 13
Peak Hour 60 30 39 30 159 0 0
0 0 0 0 5 6Count Total 109 54 86 51 300 0
2 2 30000038:45 AM 20 8 10 6 44
0 0 2 1 1 3
0
8:30 AM 11 9 18 9 47 0 0 0
0 0 0 0 0 0
0 1
8:15 AM 17 9 8 12 46 0 0
0 0 0 0 0 1
0 0 1
8:00 AM 13 11 14 8 46 0
0 0 0 0 0 0
0 0 2
2
7:30 AM 17 6 10 4 37 0 0 0
0 0 0 0 1 1
5 25 0
EB WB NB SB Total East
7:45 AM 13 4 7 6 30
0 0 0
0%5%3%HV%-10%11%16%-
2 1
7:15 AM 9 4 11 1 25 0 0
0 0 0 0 0 1
West North South
7:00 AM 9 3 8
3
166 1,026 51 0 126 2834301116722946
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
4%-6%4%23%5%3%3%2%
Peak
Hour
All 0 167 331
545 15 340 2,029 112 0
0 7 10 13 159 020708292
56 3,332 0
HV 0 16 37 7 0
Count Total 0 309 664 77 0 212 1,311 241 535 108 6,498 0
833 3,2352012203479904217951746
33 74 18 793 3,271
8:45 AM 0 34 115 14
67 1 55 234 18 0
826 3,332
8:30 AM 0 38 95 11 0 28 121
261 16 0 38 79 1503214356345
33 63 16 783 3,299
8:15 AM 0 41 87 10
57 0 38 246 15 0
869 3,263
8:00 AM 0 45 89 13 0 21 147
251 10 0 27 86 1403019490135
28 55 11 854 0
7:45 AM 0 41 82 8
91 2 48 268 10 0
793 0
7:30 AM 0 40 73 12 0 28 188
263 9 0 20 56 1501718475035
28 43 10 747 0
7:15 AM 0 41 75 3
58 1 38 305 12 07:00 AM 0 29 48 6 0 14 155
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 6.5%0.88
TOTAL 4.8%0.96
TH RT
WB 2.8%0.86
NB 3.1%0.95
Peak Hour: 7:30 AM 8:30 AM
HV %:PHF
EB 11.1%0.92
0
0
0
0 0 0
000
0
0
0
0
4
1 0
N
SR 515 (108th Ave SE)
SE Carr Rd
SE Petrovitsky
Rd
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE Carr Rd
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
3,332TEV:
0.96PHF:
56 28
3
12
6
46
5
1,
4
8
7
0
294
672
111
1,077
5080
51
1,
0
2
6
16
6
1,
2
4
9
44
3
6
43
331
167
541
894 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
159 0
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One Hour
29 2 0 7 10 130320708
RTTHLT RTTHLTRT
13 19 19 300 0
Peak Hour 0 16 37 7
14 0 21 52 13 0Count Total 0 27 66 16 0 6 34
44 183320132016105
2 4 3 47 169
8:45 AM 0 6 11 3
3 0 4 9 5 0
46 159
8:30 AM 0 1 7 3 0 2 4
7 0 0 0 3 9015301
3 5 0 46 138
8:15 AM 0 6 10 1
2 0 3 9 2 0
30 117
8:00 AM 0 1 10 2 0 1 8
5 0 0 2 2 2012102
2 0 2 37 0
7:45 AM 0 5 6 2
1 0 2 8 0 0
25 0
7:30 AM 0 4 11 2 0 0 5
6 2 0 1 0 0002203
2 2 1 25 0
7:15 AM 0 3 5 1
1 0 1 5 2 0
TH RT
7:00 AM 0 1 6 2 0 0 2
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
18
23
13
3
8
4
9
15
93
36130111184
11 42
Peak Hour 14 20 11 11 56 0 0
0 0 1 1 26 14Count Total 28 37 29 20 114 0
4 2 60000035:45 PM 2 7 3 0 12
1 1 4 2 0 3
1
5:30 PM 5 6 5 4 20 0 0 0
0 0 0 0 2 1
1 3
5:15 PM 2 4 2 5 13 0 0
0 0 0 0 4 0
0 0 2
5:00 PM 5 3 1 2 11 0
0 0 0 0 0 1
1 5 4
12
4:30 PM 5 3 5 2 15 0 0 0
0 0 0 7 3 1
1 19 0
EB WB NB SB Total East
4:45 PM 2 3 3 4 12
0 0 3
0%3%1%HV%-1%1%7%-
1 11
4:15 PM 3 2 5 2 12 0 0
0 0 0 0 4 2
West North South
4:00 PM 4 9 5
3
169 530 140 0 277 91172013749718119
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
0%-0%1%0%1%2%3%2%
Peak
Hour
All 0 132 1,020
356 38 336 1,102 287 0
0 1 10 0 56 01430560
32 4,117 0
HV 0 1 8 5 0
Count Total 2 300 1,843 180 0 303 935 554 1,779 76 8,091 0
1,031 4,11712429069203803014450442
72 250 7 1,039 4,040
5:45 PM 0 25 282 21
40 5 37 141 39 0
1,014 4,006
5:30 PM 0 26 257 17 0 28 120
139 41 0 70 206 704011537440
66 252 10 1,033 3,985
5:15 PM 0 44 258 13
54 6 50 126 31 0
954 3,974
5:00 PM 0 37 223 21 0 39 118
148 43 0 53 201 804311742950
78 214 11 1,005 0
4:45 PM 0 36 176 28
52 4 40 138 20 0
993 0
4:30 PM 1 48 235 24 0 37 103
158 42 0 75 229 110399737047
71 224 14 1,022 0
4:15 PM 1 37 194 26
44 6 30 128 42 04:00 PM 0 47 218 30 0 47 121
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 0.9%0.93
TOTAL 1.4%0.99
TH RT
WB 2.5%0.91
NB 1.3%0.96
Peak Hour: 5:00 PM 6:00 PM
HV %:PHF
EB 1.1%0.93
0
0
0
0 0 1
000
0
0
0
4
13
8 11
N
SR 515 (108th Ave SE)
SE Carr Rd
SE Petrovitsky
Rd
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE Carr Rd
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
4,117TEV:
0.99PHF:
32 91
1
27
7
1,
2
2
0
84
3
0
181
497
137
815
1,4370
14
0
53
0
16
9
85
8
1,
1
3
9
19
72
1,020
132
1,224
698 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
1010000
1 00000
0 0
0 0
Peak Hour
1 0Count Total
0
100000000
1 1
5:45 PM
0 0 0 1
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
56 0
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One Hour
6 0 0 1 10 00314305
RTTHLT RTTHLTRT
2 18 0 114 0
Peak Hour 0 1 8 5
5 0 12 17 0 0Count Total 0 1 17 10 0 5 27
12 56100000014202
1 3 0 20 56
5:45 PM 0 0 1 1
0 0 1 4 0 0
13 51
5:30 PM 0 1 2 2 0 1 5
1 0 0 0 5 0003101
0 2 0 11 50
5:15 PM 0 0 1 1
0 0 1 0 0 0
12 58
5:00 PM 0 0 4 1 0 1 2
2 0 0 0 4 0002101
0 2 0 15 0
4:45 PM 0 0 1 1
1 0 3 2 0 0
12 0
4:30 PM 0 0 4 1 0 0 2
3 0 0 1 1 0011002
0 1 0 19 0
4:15 PM 0 0 2 1
0 0 1 4 0 0
TH RT
4:00 PM 0 0 2 2 0 1 8
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
2
5
2
0
5
7
0
22
143000713
3 6
Peak Hour 4 2 48 25 79 0 0
0 1 0 1 9 4Count Total 8 3 86 37 134 0
0 0 00010108:45 AM 1 1 8 7 17
0 0 3 1 2 1
2
8:30 AM 1 0 13 8 22 0 0 0
0 0 0 2 0 1
0 0
8:15 AM 3 2 10 4 19 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 0 0 17 7 24 0
0 0 0 0 0 2
2 0 2
1
7:30 AM 2 0 12 1 15 0 0 0
0 0 0 0 1 0
3 13 0
EB WB NB SB Total East
7:45 AM 0 0 8 6 14
0 0 1
-1%4%HV%-0%0%6%-
0 0
7:15 AM 1 0 8 1 10 0 0
0 0 0 0 1 0
West North South
7:00 AM 0 0 10
2
101 1,166 7 41 3 3656805050
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
29%2%0%6%6%4%40%-0%
Peak
Hour
All 0 52 1
10 0 192 2,410 12 74
1 0 23 1 79 00001452
17 1,831 0
HV 0 0 0 4 0
Count Total 0 97 4 110 0 5 0 8 636 27 3,585 0
430 1,77125612019380002019
0 102 3 464 1,831
8:45 AM 0 16 1 13
2 0 20 279 1 16
435 1,815
8:30 AM 0 17 0 24 0 0 0
270 3 8 0 84 60400024
1 71 5 442 1,822
8:15 AM 0 16 0 20
1 0 19 309 1 8
490 1,814
8:00 AM 0 12 1 13 0 1 0
308 2 9 2 108 30002038
2 69 1 448 0
7:45 AM 0 7 0 11
1 0 27 318 3 6
442 0
7:30 AM 0 11 1 9 0 0 0
324 0 3 1 65 00001027
1 44 1 434 0
7:15 AM 0 10 1 10
1 0 18 346 1 47:00 AM 0 8 0 10 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 5.9%0.87
TOTAL 4.3%0.93
TH RT
WB 20.0%0.63
NB 3.8%0.92
Peak Hour: 7:45 AM 8:45 AM
HV %:PHF
EB 3.3%0.74
0
0
0
0 0 0
000
0
0
0
3
3
1 7
N
SR 515 (108th Ave SE)
SE 180th St
Driveway
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE 180th St
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
1,831TEV:
0.93PHF:
17 36
5
3
42
6
1,
2
6
4
41
5
0
5
10
110
7
1,
1
6
6
10
1
1,
2
7
4
43
8
0
68
1
52
121
118 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
1 00010
0 0
0 0
Peak Hour
0 0Count Total
0
110010000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
79 0
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One Hour
45 2 1 0 23 1020001
RTTHLT RTTHLTRT
0 33 3 134 0
Peak Hour 0 0 0 4
1 0 3 81 2 1Count Total 0 1 0 7 0 2 0
17 82700061000101
0 8 0 22 79
8:45 AM 0 0 0 1
0 0 1 12 0 0
19 72
8:30 AM 0 0 0 1 0 0 0
8 2 1 0 2 1020000
0 7 0 24 63
8:15 AM 0 0 0 3
0 0 0 17 0 0
14 52
8:00 AM 0 0 0 0 0 0 0
8 0 0 0 6 0000000
0 1 0 15 0
7:45 AM 0 0 0 0
0 0 1 11 0 0
10 0
7:30 AM 0 1 0 1 0 0 0
8 0 0 0 1 0000000
0 2 1 13 0
7:15 AM 0 0 0 1
0 0 0 10 0 0
TH RT
7:00 AM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
1
0
1
0
2
2
2
9
31000101
1 3
Peak Hour 2 2 9 14 27 0 0
0 0 0 0 4 1Count Total 2 3 23 27 55 0
1 0 10000005:45 PM 0 0 2 2 4
0 0 2 0 0 0
1
5:30 PM 0 1 3 5 9 0 0 0
0 0 0 0 0 1
0 0
5:15 PM 0 0 1 3 4 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 1 0 2 3 6 0
0 0 0 0 0 1
0 0 0
1
4:30 PM 1 0 5 4 10 0 0 0
0 0 0 0 0 0
4 9 0
EB WB NB SB Total East
4:45 PM 0 2 1 4 7
0 0 0
-0%1%HV%-0%-1%-
0 0
4:15 PM 0 0 4 2 6 0 0
0 0 0 0 1 0
West North South
4:00 PM 0 0 5
0
91 756 1 96 2 1,03124207180
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
100%0%0%1%0%1%0%0%25%
Peak
Hour
All 0 147 0
11 0 173 1,523 1 196
0 0 14 0 27 0020081
32 2,414 0
HV 0 0 0 2 0
Count Total 0 272 0 479 0 7 1 5 2,083 58 4,809 0
607 2,396193025127160000025
2 242 3 578 2,366
5:45 PM 0 33 0 53
2 0 23 177 0 29
616 2,414
5:30 PM 0 32 0 68 0 0 0
183 0 25 0 272 70402018
0 250 5 595 2,358
5:15 PM 0 33 0 72
4 0 27 195 0 23
577 2,413
5:00 PM 0 28 0 61 0 1 1
178 0 25 2 244 100002021
0 265 10 626 0
4:45 PM 0 47 0 48
0 0 25 200 1 23
560 0
4:30 PM 0 39 0 61 0 2 0
201 0 17 0 224 70001019
0 315 10 650 0
4:15 PM 0 34 0 57
0 0 15 196 0 294:00 PM 0 26 0 59 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 1.2%0.95
TOTAL 1.1%0.96
TH RT
WB 12.5%0.67
NB 1.1%0.94
Peak Hour: 4:30 PM 5:30 PM
HV %:PHF
EB 0.5%0.93
0
0
0
0 0 0
000
0
0
0
1
1
0 1
N
SR 515 (108th Ave SE)
SE 180th St
Driveway
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE 180th St
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
2,414TEV:
0.96PHF:
32 1,
0
3
1
2
1,
1
6
1
1,
0
0
7
96
8
1
7
16
30
1
75
691
84
8
1,
2
8
0
0
242
0
147
389
124 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
27 0
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One Hour
8 1 0 0 14 0000200
RTTHLT RTTHLTRT
2 25 0 55 0
Peak Hour 0 0 0 2
3 0 0 22 1 0Count Total 0 0 0 2 0 0 0
4 23200020000000
2 3 0 9 26
5:45 PM 0 0 0 0
1 0 0 3 0 0
4 27
5:30 PM 0 0 0 0 0 0 0
1 0 0 0 3 0000000
0 3 0 6 29
5:15 PM 0 0 0 0
0 0 0 2 0 0
7 32
5:00 PM 0 0 0 1 0 0 0
1 0 0 0 4 0000200
0 4 0 10 0
4:45 PM 0 0 0 0
0 0 0 4 1 0
6 0
4:30 PM 0 0 0 1 0 0 0
4 0 0 0 2 0000000
0 4 0 9 0
4:15 PM 0 0 0 0
0 0 0 5 0 0
TH RT
4:00 PM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix C
Level of Service (LOS) Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Existing 2022 AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 444 41 14 825 21 71 20 63 35 11 14
Future Volume (vph) 17 444 41 14 825 21 71 20 63 35 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 10% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 44.5
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 444 41 14 825 21 71 20 63 35 11 14
Future Volume (veh/h) 17 444 41 14 825 21 71 20 63 35 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 1986 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 458 42 14 851 22 73 21 65 36 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 10 3 0 3 0 9 0
Cap, veh/h 36 971 89 37 1358 35 446 79 243 373 117 149
Arrive On Green 0.02 0.35 0.35 0.02 0.35 0.35 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2770 253 2034 3927 102 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 247 253 14 427 446 73 0 86 36 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1527 2034 1972 2057 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.6 4.6 0.2 6.4 6.4 1.6 0.0 1.5 0.9 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.6 4.6 0.2 6.4 6.4 2.1 0.0 1.5 2.4 0.0 0.5
Prop In Lane 1.00 0.17 1.00 0.05 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 524 535 37 682 711 446 0 322 373 0 267
V/C Ratio(X) 0.50 0.47 0.47 0.38 0.63 0.63 0.16 0.00 0.27 0.10 0.00 0.09
Avail Cap(c_a), veh/h 846 5380 5492 1086 7092 7397 712 0 646 598 0 535
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.2 9.0 9.0 17.3 9.7 9.7 13.0 0.0 12.5 13.6 0.0 12.1
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.3 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.0 1.0 0.1 1.9 2.0 0.4 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.0 9.2 9.2 19.6 10.1 10.1 13.0 0.0 12.7 13.6 0.0 12.2
LnGrp LOS C A A B B B B A B B A B
Approach Vol, veh/h 518 887 159 61
Approach Delay, s/veh 9.7 10.2 12.9 13.0
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 18.3 11.5 5.6 18.5 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 8.4 4.1 2.2 6.6 4.4
Green Ext Time (p_c), s 0.0 3.7 0.3 0.0 2.0 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 249 53 1325 275 32 340
Future Volume (vph) 249 53 1325 275 32 340
Satd. Flow (prot) 3403 0 3504 0 1769 3306
Flt Permitted 0.960 0.095
Satd. Flow (perm) 3403 0 3504 0 177 3306
Satd. Flow (RTOR) 12 54
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 4% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 314 0 1666 0 33 354
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 12.5 47.2 48.2 48.2
Actuated g/C Ratio 0.17 0.66 0.67 0.67
v/c Ratio 0.52 0.72 0.28 0.16
Control Delay 30.5 10.1 12.7 4.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 30.5 10.1 12.7 4.8
LOS C B B A
Approach Delay 30.5 10.1 5.5
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 71.7
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.72
Intersection Signal Delay: 12.0 Intersection LOS: B
Intersection Capacity Utilization 64.5% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Future Volume (vph) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 10% 11% 16% 3% 3% 2% 0% 5% 3% 4% 6% 4% 23%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 162
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Future Volume (veh/h) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1540 1525 1451 1973 1973 1988 1826 1856 1841 1811 1841 1559
Adj Flow Rate, veh/h 174 345 45 116 700 306 173 1069 53 131 295 58
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 10 11 16 3 3 2 5 3 4 6 4 23
Cap, veh/h 193 948 123 140 797 348 224 1179 58 176 967 188
Arrive On Green 0.13 0.37 0.37 0.07 0.31 0.31 0.07 0.34 0.34 0.05 0.33 0.33
Sat Flow, veh/h 1466 2579 334 1879 2535 1108 3374 3418 169 3346 2920 566
Grp Volume(v), veh/h 174 193 197 116 518 488 173 551 571 131 175 178
Grp Sat Flow(s),veh/h/ln 1466 1449 1464 1879 1874 1769 1687 1763 1825 1673 1749 1738
Q Serve(g_s), s 16.8 13.9 14.2 8.7 37.6 37.6 7.2 42.8 42.8 5.5 10.7 11.0
Cycle Q Clear(g_c), s 16.8 13.9 14.2 8.7 37.6 37.6 7.2 42.8 42.8 5.5 10.7 11.0
Prop In Lane 1.00 0.23 1.00 0.63 1.00 0.09 1.00 0.33
Lane Grp Cap(c), veh/h 193 533 538 140 589 556 224 608 629 176 579 576
V/C Ratio(X) 0.90 0.36 0.37 0.83 0.88 0.88 0.77 0.91 0.91 0.74 0.30 0.31
Avail Cap(c_a), veh/h 240 650 657 235 796 751 1092 706 730 268 579 576
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 61.5 33.1 33.2 65.6 46.7 46.7 66.0 44.8 44.9 67.1 35.7 35.8
Incr Delay (d2), s/veh 26.7 0.3 0.3 4.7 8.0 8.4 2.1 13.7 13.4 2.3 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 7.7 5.0 5.1 4.4 18.6 17.7 3.2 20.6 21.3 2.4 4.6 4.7
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 88.2 33.4 33.5 70.2 54.6 55.0 68.1 58.5 58.2 69.4 35.9 36.0
LnGrp LOS F C C E D E E E E E D D
Approach Vol, veh/h 564 1122 1295 484
Approach Delay, s/veh 50.3 56.4 59.7 45.0
Approach LOS D E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 13.1 55.0 16.7 58.8 15.0 53.1 24.4 51.2
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 7.5 44.8 10.7 16.2 9.2 13.0 18.8 39.6
Green Ext Time (p_c), s 0.1 4.7 0.1 1.9 0.3 1.1 0.1 5.6
Intersection Summary
HCM 6th Ctrl Delay 55.1
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Future Volume (vph) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 6% 40% 0% 0% 1% 4% 29% 2% 0% 6% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 72
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Future Volume (veh/h) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1717 1307 1900 1900 1885 1841 1470 1900 1811 1811
Adj Flow Rate, veh/h 56 1 73 5 0 5 109 1254 8 3 392 18
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 6 40 0 0 1 4 29 0 6 6
Cap, veh/h 257 3 127 139 26 67 141 2134 14 7 1756 80
Arrive On Green 0.09 0.09 0.09 0.09 0.00 0.09 0.08 0.60 0.60 0.00 0.52 0.52
Sat Flow, veh/h 1443 39 1441 469 290 759 1795 3562 23 1810 3349 153
Grp Volume(v), veh/h 57 0 73 10 0 0 109 615 647 3 201 209
Grp Sat Flow(s),veh/h/ln 1482 0 1441 1517 0 0 1795 1749 1836 1810 1721 1782
Q Serve(g_s), s 0.0 0.0 2.7 0.0 0.0 0.0 3.3 12.0 12.0 0.1 3.5 3.5
Cycle Q Clear(g_c), s 1.7 0.0 2.7 1.7 0.0 0.0 3.3 12.0 12.0 0.1 3.5 3.5
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 261 0 127 232 0 0 141 1047 1100 7 902 934
V/C Ratio(X) 0.22 0.00 0.57 0.04 0.00 0.00 0.77 0.59 0.59 0.41 0.22 0.22
Avail Cap(c_a), veh/h 498 0 379 473 0 0 277 4332 4550 279 4263 4415
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 23.7 0.0 24.1 23.0 0.0 0.0 24.9 6.8 6.8 27.4 7.1 7.1
Incr Delay (d2), s/veh 0.4 0.0 4.0 0.1 0.0 0.0 8.6 0.8 0.7 32.3 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.7 0.0 1.0 0.1 0.0 0.0 1.6 2.9 3.0 0.1 0.9 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 24.1 0.0 28.1 23.1 0.0 0.0 33.5 7.6 7.6 59.7 7.2 7.2
LnGrp LOS C A C C A A C A A E A A
Approach Vol, veh/h 130 10 1371 413
Approach Delay, s/veh 26.4 23.1 9.6 7.6
Approach LOS C C A A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 38.5 10.9 9.8 34.4 10.9
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 14.0 4.7 5.3 5.5 3.7
Green Ext Time (p_c), s 0.0 19.0 0.3 0.1 3.7 0.0
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Existing 2022 PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 22 952 168 60 580 31 77 34 117 51 61 33
Future Volume (vph) 22 952 168 60 580 31 77 34 117 51 61 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 3% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 63.3
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 22 952 168 60 580 31 77 34 117 51 61 33
Future Volume (veh/h) 22 952 168 60 580 31 77 34 117 51 61 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2091 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 23 992 175 62 604 32 80 35 122 53 64 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 3 4 0 1 0 2 3
Cap, veh/h 45 1258 222 115 1835 97 325 75 263 265 203 108
Arrive On Green 0.03 0.45 0.45 0.06 0.48 0.48 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2801 494 2034 3836 203 1345 391 1362 1143 1054 560
Grp Volume(v), veh/h 23 584 583 62 312 324 80 0 157 53 0 98
Grp Sat Flow(s),veh/h/ln 1669 1651 1644 2034 1986 2052 1345 0 1753 1143 0 1614
Q Serve(g_s), s 0.7 16.0 16.1 1.6 5.2 5.2 2.9 0.0 4.2 2.3 0.0 2.8
Cycle Q Clear(g_c), s 0.7 16.0 16.1 1.6 5.2 5.2 5.7 0.0 4.2 6.5 0.0 2.8
Prop In Lane 1.00 0.30 1.00 0.10 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 45 741 738 115 950 982 325 0 338 265 0 311
V/C Ratio(X) 0.51 0.79 0.79 0.54 0.33 0.33 0.25 0.00 0.46 0.20 0.00 0.31
Avail Cap(c_a), veh/h 252 3143 3130 729 4194 4333 674 0 793 562 0 730
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 25.5 12.5 12.5 24.4 8.6 8.6 20.8 0.0 19.0 21.9 0.0 18.4
Incr Delay (d2), s/veh 3.3 0.7 0.7 1.5 0.1 0.1 0.1 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 4.7 4.7 0.7 1.7 1.8 0.9 0.0 1.6 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 28.7 13.2 13.2 25.8 8.6 8.6 21.0 0.0 19.3 22.0 0.0 18.6
LnGrp LOS C B B C A A C A B C A B
Approach Vol, veh/h 1190 698 237 151
Approach Delay, s/veh 13.5 10.2 19.9 19.8
Approach LOS B B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.4 31.4 15.2 8.0 29.8 15.2
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.7 7.2 7.7 3.6 18.1 8.5
Green Ext Time (p_c), s 0.0 2.5 0.7 0.0 5.8 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.6
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 272 19 629 283 49 1088
Future Volume (vph) 272 19 629 283 49 1088
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.265
Satd. Flow (perm) 3532 0 3464 0 484 3503
Satd. Flow (RTOR) 4 108
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 306 0 960 0 52 1145
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.2 24.7 25.8 25.8
Actuated g/C Ratio 0.23 0.51 0.54 0.54
v/c Ratio 0.37 0.52 0.20 0.61
Control Delay 17.2 8.4 9.3 9.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 17.2 8.4 9.3 9.8
LOS B A A A
Approach Delay 17.2 8.4 9.8
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 48
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.61
Intersection Signal Delay: 10.2 Intersection LOS: B
Intersection Capacity Utilization 55.4% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Future Volume (vph) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 3% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 143.5
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Future Volume (veh/h) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1973 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 133 1030 73 138 502 183 171 535 141 280 920 32
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 3 2 3 1 0 1 1 0
Cap, veh/h 128 1131 80 165 1039 376 222 740 194 339 1049 36
Arrive On Green 0.08 0.38 0.38 0.09 0.39 0.39 0.06 0.26 0.26 0.10 0.30 0.30
Sat Flow, veh/h 1593 3008 213 1893 2687 974 3428 2799 734 3483 3530 123
Grp Volume(v), veh/h 133 544 559 138 349 336 171 341 335 280 467 485
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1874 1786 1714 1791 1742 1742 1791 1861
Q Serve(g_s), s 10.5 42.6 42.6 9.4 18.4 18.6 6.4 22.7 22.9 10.3 32.5 32.5
Cycle Q Clear(g_c), s 10.5 42.6 42.6 9.4 18.4 18.6 6.4 22.7 22.9 10.3 32.5 32.5
Prop In Lane 1.00 0.13 1.00 0.55 1.00 0.42 1.00 0.07
Lane Grp Cap(c), veh/h 128 597 613 165 725 691 222 473 461 339 532 553
V/C Ratio(X) 1.04 0.91 0.91 0.84 0.48 0.49 0.77 0.72 0.73 0.83 0.88 0.88
Avail Cap(c_a), veh/h 128 685 703 260 915 872 274 498 485 704 717 745
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 60.3 38.8 38.9 58.9 30.3 30.4 60.4 43.8 43.9 58.1 43.8 43.8
Incr Delay (d2), s/veh 91.5 14.8 14.5 7.0 0.4 0.4 7.8 4.5 4.8 2.0 8.7 8.4
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 7.5 18.7 19.2 4.8 8.3 8.0 3.0 10.5 10.3 4.6 15.3 15.9
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 151.8 53.6 53.4 66.0 30.7 30.8 68.2 48.3 48.7 60.1 52.5 52.2
LnGrp LOS F D D E C C E D D E D D
Approach Vol, veh/h 1236 823 847 1232
Approach Delay, s/veh 64.1 36.6 52.5 54.1
Approach LOS E D D D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 18.3 40.2 17.4 55.3 14.0 44.5 16.0 56.7
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 12.3 24.9 11.4 44.6 8.4 34.5 12.5 20.6
Green Ext Time (p_c), s 0.4 2.5 0.1 4.6 0.1 4.5 0.0 3.8
Intersection Summary
HCM 6th Ctrl Delay 53.3
HCM 6th LOS D
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Future Volume (vph) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 81.7
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Future Volume (veh/h) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 153 0 252 7 1 8 95 788 1 2 1074 33
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 342 0 323 118 38 81 126 1967 2 5 1665 51
Arrive On Green 0.21 0.00 0.21 0.21 0.21 0.21 0.07 0.54 0.54 0.00 0.47 0.47
Sat Flow, veh/h 1112 0 1516 198 179 378 1810 3671 5 1810 3547 109
Grp Volume(v), veh/h 153 0 252 16 0 0 95 384 405 2 542 565
Grp Sat Flow(s),veh/h/ln 1112 0 1516 756 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 10.7 0.1 0.0 0.0 3.5 8.7 8.7 0.1 15.8 15.8
Cycle Q Clear(g_c), s 9.8 0.0 10.7 9.9 0.0 0.0 3.5 8.7 8.7 0.1 15.8 15.8
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 342 0 323 237 0 0 126 960 1010 5 840 875
V/C Ratio(X) 0.45 0.00 0.78 0.07 0.00 0.00 0.76 0.40 0.40 0.41 0.65 0.65
Avail Cap(c_a), veh/h 657 0 675 546 0 0 515 2366 2490 594 2445 2546
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 25.1 0.0 25.4 21.8 0.0 0.0 31.3 9.4 9.4 34.1 13.8 13.8
Incr Delay (d2), s/veh 0.9 0.0 4.1 0.1 0.0 0.0 8.9 0.4 0.4 45.9 1.2 1.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.3 0.0 4.1 0.2 0.0 0.0 1.8 2.8 2.9 0.1 5.5 5.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 26.0 0.0 29.5 21.9 0.0 0.0 40.2 9.8 9.8 80.0 15.0 15.0
LnGrp LOS C A C C A A D A A F B B
Approach Vol, veh/h 405 16 884 1109
Approach Delay, s/veh 28.2 21.9 13.0 15.1
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 42.2 20.6 10.3 37.6 20.6
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 10.7 12.7 5.5 17.8 11.9
Green Ext Time (p_c), s 0.0 8.3 1.7 0.2 14.4 0.0
Intersection Summary
HCM 6th Ctrl Delay 16.6
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 No Action AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 457 41 14 850 22 71 20 63 36 11 14
Future Volume (vph) 17 457 41 14 850 22 71 20 63 36 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 10% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 45.2
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 457 41 14 850 22 71 20 63 36 11 14
Future Volume (veh/h) 17 457 41 14 850 22 71 20 63 36 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 1986 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 471 42 14 876 23 73 21 65 37 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 10 3 0 3 0 9 0
Cap, veh/h 36 992 88 37 1383 36 442 78 241 369 116 148
Arrive On Green 0.02 0.36 0.36 0.02 0.35 0.35 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2778 247 2034 3926 103 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 253 260 14 440 459 73 0 86 37 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1528 2034 1972 2057 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.7 4.7 0.2 6.7 6.7 1.6 0.0 1.5 1.0 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.7 4.7 0.2 6.7 6.7 2.1 0.0 1.5 2.5 0.0 0.5
Prop In Lane 1.00 0.16 1.00 0.05 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 534 546 37 695 725 442 0 319 369 0 265
V/C Ratio(X) 0.50 0.47 0.48 0.38 0.63 0.63 0.17 0.00 0.27 0.10 0.00 0.09
Avail Cap(c_a), veh/h 836 5317 5431 1073 7008 7308 704 0 638 590 0 529
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.4 9.0 9.0 17.5 9.7 9.7 13.2 0.0 12.7 13.8 0.0 12.3
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.3 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.0 1.1 0.1 2.0 2.1 0.4 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.3 9.2 9.2 19.9 10.1 10.1 13.2 0.0 12.9 13.8 0.0 12.4
LnGrp LOS C A A B B B B A B B A B
Approach Vol, veh/h 531 913 159 62
Approach Delay, s/veh 9.6 10.2 13.0 13.2
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 18.7 11.5 5.7 18.9 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 8.7 4.1 2.2 6.7 4.5
Green Ext Time (p_c), s 0.0 3.9 0.3 0.0 2.0 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 257 55 1365 283 33 350
Future Volume (vph) 257 55 1365 283 33 350
Satd. Flow (prot) 3403 0 3504 0 1769 3306
Flt Permitted 0.960 0.088
Satd. Flow (perm) 3403 0 3504 0 164 3306
Satd. Flow (RTOR) 12 54
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 4% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 325 0 1717 0 34 365
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 13.1 49.8 50.9 50.9
Actuated g/C Ratio 0.17 0.66 0.68 0.68
v/c Ratio 0.54 0.73 0.31 0.16
Control Delay 32.2 10.4 14.2 4.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 32.2 10.4 14.2 4.8
LOS C B B A
Approach Delay 32.2 10.4 5.6
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 74.9
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.73
Intersection Signal Delay: 12.5 Intersection LOS: B
Intersection Capacity Utilization 66.1% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Future Volume (vph) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 10% 11% 16% 3% 3% 2% 0% 5% 3% 4% 6% 4% 23%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 166.1
Natural Cycle: 115
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Future Volume (veh/h) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1540 1525 1451 1973 1973 1988 1826 1856 1841 1811 1841 1559
Adj Flow Rate, veh/h 179 355 46 119 721 316 178 1101 55 135 304 60
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 10 11 16 3 3 2 5 3 4 6 4 23
Cap, veh/h 196 966 124 142 808 354 226 1187 59 178 973 189
Arrive On Green 0.13 0.37 0.37 0.08 0.32 0.32 0.07 0.35 0.35 0.05 0.33 0.33
Sat Flow, veh/h 1466 2581 332 1879 2533 1110 3374 3417 171 3346 2918 568
Grp Volume(v), veh/h 179 198 203 119 533 504 178 568 588 135 181 183
Grp Sat Flow(s),veh/h/ln 1466 1449 1464 1879 1874 1768 1687 1763 1825 1673 1749 1738
Q Serve(g_s), s 18.5 15.2 15.5 9.6 41.6 41.6 8.0 47.6 47.6 6.1 11.8 12.1
Cycle Q Clear(g_c), s 18.5 15.2 15.5 9.6 41.6 41.6 8.0 47.6 47.6 6.1 11.8 12.1
Prop In Lane 1.00 0.23 1.00 0.63 1.00 0.09 1.00 0.33
Lane Grp Cap(c), veh/h 196 542 548 142 598 564 226 612 634 178 583 579
V/C Ratio(X) 0.91 0.37 0.37 0.84 0.89 0.89 0.79 0.93 0.93 0.76 0.31 0.32
Avail Cap(c_a), veh/h 225 609 615 220 745 703 1022 661 684 251 583 579
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 65.6 34.8 34.9 70.0 49.7 49.7 70.5 48.2 48.2 71.7 38.0 38.1
Incr Delay (d2), s/veh 32.6 0.3 0.3 9.0 10.6 11.2 2.3 18.4 18.0 4.6 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 8.7 5.5 5.6 5.0 21.1 20.0 3.5 23.6 24.4 2.7 5.1 5.2
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 98.2 35.1 35.2 79.0 60.4 61.0 72.8 66.6 66.3 76.3 38.2 38.3
LnGrp LOS F D D E E E E E E E D D
Approach Vol, veh/h 580 1156 1334 499
Approach Delay, s/veh 54.6 62.5 67.3 48.6
Approach LOS D E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 13.6 58.8 17.6 63.4 15.8 56.7 26.0 55.0
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 8.1 49.6 11.6 17.5 10.0 14.1 20.5 43.6
Green Ext Time (p_c), s 0.1 3.6 0.1 2.0 0.3 1.0 0.1 5.4
Intersection Summary
HCM 6th Ctrl Delay 61.1
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Future Volume (vph) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 6% 40% 0% 0% 1% 4% 29% 2% 0% 6% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 73.7
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Future Volume (veh/h) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1717 1307 1900 1900 1885 1841 1470 1900 1811 1811
Adj Flow Rate, veh/h 58 1 75 5 0 5 112 1291 8 3 404 19
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 6 40 0 0 1 4 29 0 6 6
Cap, veh/h 254 3 129 136 25 67 145 2172 13 7 1783 84
Arrive On Green 0.09 0.09 0.09 0.09 0.00 0.09 0.08 0.61 0.61 0.00 0.53 0.53
Sat Flow, veh/h 1448 37 1440 462 281 743 1795 3563 22 1810 3345 157
Grp Volume(v), veh/h 59 0 75 10 0 0 112 633 666 3 207 216
Grp Sat Flow(s),veh/h/ln 1485 0 1440 1486 0 0 1795 1749 1837 1810 1721 1782
Q Serve(g_s), s 0.0 0.0 2.9 0.0 0.0 0.0 3.5 12.7 12.7 0.1 3.7 3.7
Cycle Q Clear(g_c), s 1.9 0.0 2.9 1.9 0.0 0.0 3.5 12.7 12.7 0.1 3.7 3.7
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 258 0 129 227 0 0 145 1066 1120 7 917 949
V/C Ratio(X) 0.23 0.00 0.58 0.04 0.00 0.00 0.77 0.59 0.59 0.41 0.23 0.23
Avail Cap(c_a), veh/h 480 0 365 452 0 0 266 4167 4377 269 4100 4245
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 24.6 0.0 25.0 23.9 0.0 0.0 25.8 6.8 6.8 28.5 7.1 7.1
Incr Delay (d2), s/veh 0.4 0.0 4.1 0.1 0.0 0.0 8.4 0.8 0.7 32.4 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.8 0.0 1.1 0.1 0.0 0.0 1.7 3.1 3.2 0.1 1.0 1.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 25.0 0.0 29.1 24.0 0.0 0.0 34.2 7.6 7.6 60.8 7.3 7.3
LnGrp LOS C A C C A A C A A E A A
Approach Vol, veh/h 134 10 1411 426
Approach Delay, s/veh 27.3 24.0 9.7 7.7
Approach LOS C C A A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 40.4 11.1 10.1 36.0 11.1
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 14.7 4.9 5.5 5.7 3.9
Green Ext Time (p_c), s 0.0 20.2 0.3 0.1 3.8 0.0
Intersection Summary
HCM 6th Ctrl Delay 10.5
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 No Action PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 23 981 168 60 598 32 77 34 117 53 61 34
Future Volume (vph) 23 981 168 60 598 32 77 34 117 53 61 34
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 3% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 64.6
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 23 981 168 60 598 32 77 34 117 53 61 34
Future Volume (veh/h) 23 981 168 60 598 32 77 34 117 53 61 34
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2091 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 24 1022 175 62 623 33 80 35 122 55 64 35
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 3 4 0 1 0 2 3
Cap, veh/h 47 1287 220 114 1860 98 321 75 263 262 201 110
Arrive On Green 0.03 0.46 0.46 0.06 0.49 0.49 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2816 481 2034 3836 203 1344 391 1362 1143 1042 570
Grp Volume(v), veh/h 24 599 598 62 322 334 80 0 157 55 0 99
Grp Sat Flow(s),veh/h/ln 1669 1651 1646 2034 1986 2052 1344 0 1753 1143 0 1612
Q Serve(g_s), s 0.8 16.8 16.9 1.6 5.4 5.4 3.0 0.0 4.3 2.4 0.0 2.9
Cycle Q Clear(g_c), s 0.8 16.8 16.9 1.6 5.4 5.4 5.8 0.0 4.3 6.8 0.0 2.9
Prop In Lane 1.00 0.29 1.00 0.10 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 47 755 752 114 963 995 321 0 338 262 0 311
V/C Ratio(X) 0.51 0.79 0.80 0.55 0.33 0.34 0.25 0.00 0.46 0.21 0.00 0.32
Avail Cap(c_a), veh/h 245 3064 3056 710 4088 4224 654 0 773 546 0 711
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 26.1 12.6 12.6 25.0 8.6 8.6 21.4 0.0 19.5 22.5 0.0 18.9
Incr Delay (d2), s/veh 3.2 0.7 0.7 1.5 0.1 0.1 0.1 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 4.9 5.0 0.8 1.8 1.9 0.9 0.0 1.7 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 29.3 13.3 13.3 26.5 8.7 8.7 21.5 0.0 19.8 22.6 0.0 19.1
LnGrp LOS C B B C A A C A B C A B
Approach Vol, veh/h 1221 718 237 154
Approach Delay, s/veh 13.6 10.2 20.4 20.3
Approach LOS B B C C
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.5 32.4 15.5 8.0 30.9 15.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.8 7.4 7.8 3.6 18.9 8.8
Green Ext Time (p_c), s 0.0 2.6 0.7 0.0 6.0 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.7
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 280 20 648 292 50 1121
Future Volume (vph) 280 20 648 292 50 1121
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.254
Satd. Flow (perm) 3532 0 3464 0 464 3503
Satd. Flow (RTOR) 4 108
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 316 0 989 0 53 1180
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.4 25.7 26.8 26.8
Actuated g/C Ratio 0.23 0.52 0.54 0.54
v/c Ratio 0.38 0.53 0.21 0.62
Control Delay 17.9 8.4 9.5 9.9
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 17.9 8.4 9.5 9.9
LOS B A A A
Approach Delay 17.9 8.4 9.9
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 49.3
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.62
Intersection Signal Delay: 10.3 Intersection LOS: B
Intersection Capacity Utilization 56.5% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Future Volume (vph) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 3% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 146.9
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Future Volume (veh/h) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1973 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 137 1062 75 142 517 188 176 552 145 288 948 33
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 3 2 3 1 0 1 1 0
Cap, veh/h 120 1140 81 168 1063 385 224 751 197 344 1065 37
Arrive On Green 0.08 0.38 0.38 0.09 0.40 0.40 0.07 0.27 0.27 0.10 0.30 0.30
Sat Flow, veh/h 1593 3009 212 1893 2688 973 3428 2801 733 3483 3530 123
Grp Volume(v), veh/h 137 561 576 142 360 345 176 352 345 288 481 500
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1874 1786 1714 1791 1743 1742 1791 1861
Q Serve(g_s), s 10.5 47.0 47.1 10.3 19.9 20.1 7.0 24.9 25.1 11.3 35.6 35.6
Cycle Q Clear(g_c), s 10.5 47.0 47.1 10.3 19.9 20.1 7.0 24.9 25.1 11.3 35.6 35.6
Prop In Lane 1.00 0.13 1.00 0.54 1.00 0.42 1.00 0.07
Lane Grp Cap(c), veh/h 120 602 619 168 741 707 224 480 468 344 540 562
V/C Ratio(X) 1.14 0.93 0.93 0.85 0.49 0.49 0.79 0.73 0.74 0.84 0.89 0.89
Avail Cap(c_a), veh/h 120 646 664 245 863 823 259 480 468 664 677 703
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 64.2 41.4 41.4 62.4 31.4 31.5 64.0 46.3 46.4 61.5 46.3 46.3
Incr Delay (d2), s/veh 123.8 19.3 19.1 11.5 0.4 0.4 10.9 5.4 5.8 2.1 11.3 10.9
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 8.4 21.3 21.8 5.5 9.1 8.7 3.4 11.6 11.4 5.0 17.2 17.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 188.0 60.7 60.5 73.9 31.8 31.9 74.9 51.7 52.1 63.6 57.6 57.2
LnGrp LOS F E E E C C E D D E E E
Approach Vol, veh/h 1274 847 873 1269
Approach Delay, s/veh 74.3 38.9 56.6 58.8
Approach LOS E D E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 19.2 42.8 18.3 58.6 14.6 47.4 16.0 60.9
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 13.3 27.1 12.3 49.1 9.0 37.6 12.5 22.1
Green Ext Time (p_c), s 0.4 2.4 0.1 3.6 0.0 4.3 0.0 3.9
Intersection Summary
HCM 6th Ctrl Delay 59.0
HCM 6th LOS E
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Future Volume (vph) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 85.9
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Future Volume (veh/h) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 157 0 259 7 1 8 98 811 1 2 1106 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 328 0 327 108 36 71 129 2000 2 5 1688 52
Arrive On Green 0.22 0.00 0.22 0.22 0.22 0.22 0.07 0.54 0.54 0.00 0.48 0.48
Sat Flow, veh/h 1055 0 1516 165 167 331 1810 3671 5 1810 3547 109
Grp Volume(v), veh/h 157 0 259 16 0 0 98 396 416 2 558 582
Grp Sat Flow(s),veh/h/ln 1055 0 1516 663 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 11.6 0.1 0.0 0.0 3.8 9.3 9.3 0.1 17.0 17.0
Cycle Q Clear(g_c), s 11.2 0.0 11.6 11.3 0.0 0.0 3.8 9.3 9.3 0.1 17.0 17.0
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 328 0 327 215 0 0 129 976 1027 5 852 888
V/C Ratio(X) 0.48 0.00 0.79 0.07 0.00 0.00 0.76 0.41 0.41 0.41 0.65 0.66
Avail Cap(c_a), veh/h 612 0 644 493 0 0 492 2259 2377 567 2334 2431
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 26.5 0.0 26.6 22.8 0.0 0.0 32.7 9.5 9.5 35.7 14.3 14.3
Incr Delay (d2), s/veh 1.1 0.0 4.4 0.1 0.0 0.0 8.7 0.4 0.4 46.0 1.2 1.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.5 0.0 4.4 0.2 0.0 0.0 1.9 3.0 3.2 0.1 6.0 6.3
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 27.6 0.0 31.0 23.0 0.0 0.0 41.4 9.9 9.9 81.7 15.5 15.5
LnGrp LOS C A C C A A D A A F B B
Approach Vol, veh/h 416 16 910 1142
Approach Delay, s/veh 29.7 23.0 13.3 15.6
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 44.6 21.5 10.6 39.6 21.5
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 11.3 13.6 5.8 19.0 13.3
Green Ext Time (p_c), s 0.0 8.7 1.7 0.2 15.1 0.0
Intersection Summary
HCM 6th Ctrl Delay 17.2
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 With Project AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 466 41 14 873 38 71 20 63 36 11 14
Future Volume (vph) 17 466 41 14 873 38 71 20 63 36 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 5% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 46.2
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 466 41 14 873 38 71 20 63 36 11 14
Future Volume (veh/h) 17 466 41 14 873 38 71 20 63 36 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 2061 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 480 42 14 900 39 73 21 65 37 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 5 3 0 3 0 9 0
Cap, veh/h 36 1024 89 37 1399 61 434 77 238 362 115 146
Arrive On Green 0.02 0.37 0.37 0.02 0.36 0.36 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2783 243 2034 3850 167 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 257 265 14 461 478 73 0 86 37 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1529 2034 1972 2045 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.8 4.9 0.2 7.1 7.1 1.6 0.0 1.5 1.0 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.8 4.9 0.2 7.1 7.1 2.1 0.0 1.5 2.5 0.0 0.5
Prop In Lane 1.00 0.16 1.00 0.08 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 551 563 37 717 743 434 0 315 362 0 261
V/C Ratio(X) 0.50 0.47 0.47 0.38 0.64 0.64 0.17 0.00 0.27 0.10 0.00 0.10
Avail Cap(c_a), veh/h 820 5215 5331 1053 6874 7127 690 0 626 577 0 519
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.7 8.9 8.9 17.8 9.7 9.7 13.5 0.0 13.0 14.1 0.0 12.6
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.4 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.1 1.1 0.1 2.1 2.2 0.5 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.6 9.1 9.1 20.2 10.1 10.1 13.6 0.0 13.2 14.2 0.0 12.7
LnGrp LOS C A A C B B B A B B A B
Approach Vol, veh/h 540 953 159 62
Approach Delay, s/veh 9.5 10.2 13.4 13.6
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 19.3 11.5 5.7 19.5 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 9.1 4.1 2.2 6.9 4.5
Green Ext Time (p_c), s 0.0 4.1 0.2 0.0 2.1 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 261 55 1370 286 33 356
Future Volume (vph) 261 55 1370 286 33 356
Satd. Flow (prot) 3431 0 3504 0 1769 3306
Flt Permitted 0.960 0.087
Satd. Flow (perm) 3431 0 3504 0 162 3306
Satd. Flow (RTOR) 12 55
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 3% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 329 0 1725 0 34 371
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 13.1 50.5 51.6 51.6
Actuated g/C Ratio 0.17 0.67 0.68 0.68
v/c Ratio 0.54 0.73 0.31 0.16
Control Delay 32.6 10.4 14.5 4.7
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 32.6 10.4 14.5 4.7
LOS C B B A
Approach Delay 32.6 10.4 5.5
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 75.7
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.73
Intersection Signal Delay: 12.6 Intersection LOS: B
Intersection Capacity Utilization 66.4% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Future Volume (vph) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 345 1369 229
Travel Time (s) 10.7 6.7 23.3 3.9
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 9% 11% 16% 3% 3% 2% 0% 5% 3% 4% 5% 3% 22%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 169.7
Natural Cycle: 135
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Future Volume (veh/h) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1555 1525 1451 1973 1973 1988 1826 1856 1841 1826 1856 1574
Adj Flow Rate, veh/h 193 351 46 117 764 312 176 1129 54 150 316 60
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 9 11 16 3 3 2 5 3 4 5 3 22
Cap, veh/h 209 999 130 138 839 342 221 1175 56 190 989 186
Arrive On Green 0.14 0.39 0.39 0.07 0.32 0.32 0.07 0.34 0.34 0.06 0.33 0.33
Sat Flow, veh/h 1481 2577 335 1879 2594 1058 3374 3425 164 3374 2962 556
Grp Volume(v), veh/h 193 196 201 117 552 524 176 581 602 150 186 190
Grp Sat Flow(s),veh/h/ln 1481 1449 1463 1879 1874 1778 1687 1763 1826 1687 1763 1755
Q Serve(g_s), s 21.3 15.8 16.1 10.2 46.6 46.7 8.5 53.3 53.4 7.3 13.0 13.3
Cycle Q Clear(g_c), s 21.3 15.8 16.1 10.2 46.6 46.7 8.5 53.3 53.4 7.3 13.0 13.3
Prop In Lane 1.00 0.23 1.00 0.60 1.00 0.09 1.00 0.32
Lane Grp Cap(c), veh/h 209 562 568 138 607 575 221 605 626 190 589 586
V/C Ratio(X) 0.93 0.35 0.35 0.85 0.91 0.91 0.80 0.96 0.96 0.79 0.32 0.32
Avail Cap(c_a), veh/h 211 566 571 205 692 656 950 614 636 235 589 586
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 70.1 35.8 35.9 75.6 53.6 53.6 76.1 53.2 53.2 77.0 41.0 41.1
Incr Delay (d2), s/veh 40.8 0.3 0.3 12.7 14.6 15.3 2.5 26.5 26.1 10.7 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 10.4 5.7 5.9 5.4 24.3 23.2 3.7 27.7 28.6 3.4 5.7 5.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 110.9 36.1 36.2 88.3 68.1 68.9 78.6 79.7 79.3 87.7 41.2 41.3
LnGrp LOS F D D F E E E E E F D D
Approach Vol, veh/h 590 1193 1359 526
Approach Delay, s/veh 60.6 70.4 79.4 54.5
Approach LOS E E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 14.8 62.2 18.2 70.1 16.3 60.7 28.8 59.5
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 9.3 55.4 12.2 18.1 10.5 15.3 23.3 48.7
Green Ext Time (p_c), s 0.1 1.3 0.1 2.0 0.3 1.0 0.0 4.7
Intersection Summary
HCM 6th Ctrl Delay 69.9
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Future Volume (vph) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 5% 40% 0% 0% 1% 4% 29% 2% 0% 7% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 78.9
Natural Cycle: 90
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Future Volume (veh/h) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1732 1307 1900 1900 1885 1841 1470 1900 1796 1811
Adj Flow Rate, veh/h 58 1 91 5 0 5 112 1301 8 3 398 19
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 5 40 0 0 1 4 29 0 7 6
Cap, veh/h 265 4 146 140 26 75 145 2166 13 7 1761 84
Arrive On Green 0.10 0.10 0.10 0.10 0.00 0.10 0.08 0.61 0.61 0.00 0.53 0.53
Sat Flow, veh/h 1436 35 1454 490 256 745 1795 3563 22 1810 3315 158
Grp Volume(v), veh/h 59 0 91 10 0 0 112 638 671 3 204 213
Grp Sat Flow(s),veh/h/ln 1471 0 1454 1491 0 0 1795 1749 1837 1810 1706 1767
Q Serve(g_s), s 0.0 0.0 3.5 0.0 0.0 0.0 3.6 13.3 13.3 0.1 3.8 3.8
Cycle Q Clear(g_c), s 1.9 0.0 3.5 1.9 0.0 0.0 3.6 13.3 13.3 0.1 3.8 3.8
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 268 0 146 241 0 0 145 1063 1116 7 906 938
V/C Ratio(X) 0.22 0.00 0.63 0.04 0.00 0.00 0.77 0.60 0.60 0.41 0.23 0.23
Avail Cap(c_a), veh/h 466 0 357 439 0 0 259 4045 4248 261 3947 4086
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 24.7 0.0 25.5 24.0 0.0 0.0 26.6 7.1 7.1 29.3 7.4 7.4
Incr Delay (d2), s/veh 0.4 0.0 4.3 0.1 0.0 0.0 8.4 0.8 0.7 32.4 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.8 0.0 1.3 0.1 0.0 0.0 1.7 3.3 3.5 0.1 1.0 1.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 25.2 0.0 29.8 24.1 0.0 0.0 35.0 7.9 7.9 61.8 7.5 7.5
LnGrp LOS C A C C A A D A A E A A
Approach Vol, veh/h 150 10 1421 420
Approach Delay, s/veh 28.0 24.1 10.0 7.9
Approach LOS C C B A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 41.4 11.9 10.3 36.8 11.9
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 15.3 5.5 5.6 5.8 3.9
Green Ext Time (p_c), s 0.0 20.6 0.3 0.1 3.8 0.0
Intersection Summary
HCM 6th Ctrl Delay 11.0
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 13
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 0 26 1513 56 0 505
Future Volume (vph) 0 26 1513 56 0 505
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Link Speed (mph) 25 40 40
Link Distance (ft) 254 229 577
Travel Time (s) 6.9 3.9 9.8
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 3% 4% 3% 3% 6%
Shared Lane Traffic (%)
Sign Control Stop Free Free
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 14
Intersection
Int Delay, s/veh 0.2
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Vol, veh/h 0 26 1513 56 0 505
Future Vol, veh/h 0 26 1513 56 0 505
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free
RT Channelized - None - None - None
Storage Length - 0 - - - -
Veh in Median Storage, # 0 - 0 - - 0
Grade, % 0 - 0 - - 0
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 3 4 3 3 6
Mvmt Flow 0 28 1645 61 0 549
Major/Minor Minor1 Major1 Major2
Conflicting Flow All - 853 0 0 - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - 6.96 - - - -
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - 3.33 - - - -
Pot Cap-1 Maneuver 0 300 - - 0 -
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - 300 - - - -
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach WB NB SB
HCM Control Delay, s 18.2 0 0
HCM LOS C
Minor Lane/Major Mvmt NBT NBR WBLn1 SBT
Capacity (veh/h) - - 300 -
HCM Lane V/C Ratio - - 0.094 -
HCM Control Delay (s) - - 18.2 -
HCM Lane LOS - - C -
HCM 95th %tile Q(veh) - - 0.3 -
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 15
Lane Group EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Volume (vph) 0 533 1095 24 0 50
Future Volume (vph) 0 533 1095 24 0 50
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Grade (%) 3% -3% 0%
Link Speed (mph) 35 35 30
Link Distance (ft) 345 853 191
Travel Time (s) 6.7 16.6 4.3
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 9% 3% 3% 3% 3%
Shared Lane Traffic (%)
Sign Control Free Free Stop
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 16
Intersection
Int Delay, s/veh 0.4
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 533 1095 24 0 50
Future Vol, veh/h 0 533 1095 24 0 50
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - - 0
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 3 -3 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 9 3 3 3 3
Mvmt Flow 0 579 1190 26 0 54
Major/Minor Major1 Major2 Minor2
Conflicting Flow All - 0 - 0 - 608
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - - - - - 6.96
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - - - - - 3.33
Pot Cap-1 Maneuver 0 - - - 0 436
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - - - - 436
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach EB WB SB
HCM Control Delay, s 0 0 14.4
HCM LOS B
Minor Lane/Major Mvmt EBT WBT WBR SBLn1
Capacity (veh/h) - - - 436
HCM Lane V/C Ratio - - - 0.125
HCM Control Delay (s) - - - 14.4
HCM Lane LOS - - - B
HCM 95th %tile Q(veh) - - - 0.4
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 With Project PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 23 994 168 60 639 61 77 34 117 53 61 34
Future Volume (vph) 23 994 168 60 639 61 77 34 117 53 61 34
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 2% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 65.1
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 23 994 168 60 639 61 77 34 117 53 61 34
Future Volume (veh/h) 23 994 168 60 639 61 77 34 117 53 61 34
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2106 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 24 1035 175 62 666 64 80 35 122 55 64 35
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 2 4 0 1 0 2 3
Cap, veh/h 47 1300 219 113 1787 172 319 75 262 260 201 110
Arrive On Green 0.03 0.46 0.46 0.06 0.49 0.49 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2822 476 2034 3659 351 1344 391 1362 1143 1042 570
Grp Volume(v), veh/h 24 605 605 62 361 369 80 0 157 55 0 99
Grp Sat Flow(s),veh/h/ln 1669 1651 1647 2034 1986 2024 1344 0 1753 1143 0 1612
Q Serve(g_s), s 0.8 17.1 17.2 1.6 6.2 6.3 3.0 0.0 4.4 2.5 0.0 2.9
Cycle Q Clear(g_c), s 0.8 17.1 17.2 1.6 6.2 6.3 5.9 0.0 4.4 6.8 0.0 2.9
Prop In Lane 1.00 0.29 1.00 0.17 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 47 761 759 113 970 989 319 0 337 260 0 310
V/C Ratio(X) 0.52 0.80 0.80 0.55 0.37 0.37 0.25 0.00 0.47 0.21 0.00 0.32
Avail Cap(c_a), veh/h 243 3034 3028 703 4048 4126 647 0 765 539 0 704
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 26.3 12.6 12.6 25.3 8.8 8.8 21.6 0.0 19.7 22.7 0.0 19.1
Incr Delay (d2), s/veh 3.2 0.7 0.7 1.5 0.1 0.1 0.2 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 5.0 5.1 0.8 2.1 2.1 0.9 0.0 1.7 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 29.6 13.3 13.4 26.8 8.9 8.9 21.8 0.0 20.1 22.9 0.0 19.3
LnGrp LOS C B B C A A C A C C A B
Approach Vol, veh/h 1234 792 237 154
Approach Delay, s/veh 13.7 10.3 20.6 20.6
Approach LOS B B C C
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.5 32.8 15.6 8.1 31.3 15.6
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.8 8.3 7.9 3.6 19.2 8.8
Green Ext Time (p_c), s 0.0 3.0 0.7 0.0 6.1 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.7
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 285 20 656 297 50 1129
Future Volume (vph) 285 20 656 297 50 1129
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.248
Satd. Flow (perm) 3532 0 3464 0 453 3503
Satd. Flow (RTOR) 4 109
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 321 0 1004 0 53 1188
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.6 26.5 27.6 27.6
Actuated g/C Ratio 0.23 0.53 0.55 0.55
v/c Ratio 0.39 0.53 0.21 0.62
Control Delay 18.4 8.4 9.5 9.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 18.4 8.4 9.5 9.8
LOS B A A A
Approach Delay 18.4 8.4 9.8
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 50.2
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.62
Intersection Signal Delay: 10.3 Intersection LOS: B
Intersection Capacity Utilization 57.0% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Future Volume (vph) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 345 1369 237
Travel Time (s) 10.7 6.7 23.3 4.0
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 2% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 147.2
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Future Volume (veh/h) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1988 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 164 1049 74 140 591 186 174 598 143 314 966 32
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 2 2 3 1 0 1 1 0
Cap, veh/h 121 1131 80 166 1103 346 222 757 181 370 1083 36
Arrive On Green 0.08 0.38 0.38 0.09 0.39 0.39 0.06 0.26 0.26 0.11 0.31 0.31
Sat Flow, veh/h 1593 3010 212 1893 2821 886 3428 2861 682 3483 3536 117
Grp Volume(v), veh/h 164 554 569 140 395 382 174 374 367 314 489 509
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1889 1818 1714 1791 1752 1742 1791 1863
Q Serve(g_s), s 10.5 46.3 46.4 10.1 22.4 22.4 6.9 26.9 27.0 12.3 36.2 36.2
Cycle Q Clear(g_c), s 10.5 46.3 46.4 10.1 22.4 22.4 6.9 26.9 27.0 12.3 36.2 36.2
Prop In Lane 1.00 0.13 1.00 0.49 1.00 0.39 1.00 0.06
Lane Grp Cap(c), veh/h 121 597 613 166 739 711 222 474 464 370 549 571
V/C Ratio(X) 1.36 0.93 0.93 0.85 0.54 0.54 0.78 0.79 0.79 0.85 0.89 0.89
Avail Cap(c_a), veh/h 121 648 665 246 871 839 260 474 464 666 678 705
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 64.1 41.5 41.5 62.4 32.5 32.5 63.9 47.4 47.4 60.9 45.9 45.9
Incr Delay (d2), s/veh 206.1 18.6 18.3 10.7 0.4 0.5 10.5 8.4 8.8 2.1 11.6 11.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 11.1 20.9 21.4 5.3 10.3 9.9 3.3 12.9 12.7 5.5 17.5 18.2
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 270.1 60.1 59.8 73.1 33.0 33.0 74.4 55.8 56.2 63.0 57.5 57.2
LnGrp LOS F E E E C C E E E E E E
Approach Vol, veh/h 1287 917 915 1312
Approach Delay, s/veh 86.7 39.1 59.5 58.7
Approach LOS F D E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 20.2 42.2 18.1 58.1 14.5 48.0 16.0 60.2
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 14.3 29.0 12.1 48.4 8.9 38.2 12.5 24.4
Green Ext Time (p_c), s 0.5 2.2 0.1 3.8 0.0 4.3 0.0 4.4
Intersection Summary
HCM 6th Ctrl Delay 63.0
HCM 6th LOS E
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Future Volume (vph) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 84
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Future Volume (veh/h) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 157 0 289 7 1 8 98 825 1 2 1091 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 350 0 354 117 37 84 129 1959 2 5 1648 51
Arrive On Green 0.23 0.00 0.23 0.23 0.23 0.23 0.07 0.53 0.53 0.00 0.46 0.46
Sat Flow, veh/h 1080 0 1516 202 158 360 1810 3671 4 1810 3546 110
Grp Volume(v), veh/h 157 0 289 16 0 0 98 402 424 2 551 574
Grp Sat Flow(s),veh/h/ln 1080 0 1516 721 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 13.3 0.1 0.0 0.0 3.9 10.0 10.0 0.1 17.5 17.6
Cycle Q Clear(g_c), s 11.3 0.0 13.3 11.4 0.0 0.0 3.9 10.0 10.0 0.1 17.5 17.6
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 350 0 354 238 0 0 129 956 1005 5 833 867
V/C Ratio(X) 0.45 0.00 0.82 0.07 0.00 0.00 0.76 0.42 0.42 0.41 0.66 0.66
Avail Cap(c_a), veh/h 594 0 627 473 0 0 478 2197 2311 552 2270 2364
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 26.0 0.0 26.8 22.4 0.0 0.0 33.6 10.4 10.4 36.7 15.3 15.3
Incr Delay (d2), s/veh 0.9 0.0 4.7 0.1 0.0 0.0 8.7 0.4 0.4 46.1 1.3 1.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.5 0.0 5.1 0.2 0.0 0.0 1.9 3.4 3.5 0.1 6.4 6.6
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 26.9 0.0 31.4 22.5 0.0 0.0 42.4 10.8 10.8 82.8 16.6 16.5
LnGrp LOS C A C C A A D B B F B B
Approach Vol, veh/h 446 16 924 1127
Approach Delay, s/veh 29.9 22.5 14.1 16.6
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 44.9 23.2 10.8 39.8 23.2
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 12.0 15.3 5.9 19.6 13.4
Green Ext Time (p_c), s 0.0 8.9 1.7 0.2 14.7 0.0
Intersection Summary
HCM 6th Ctrl Delay 18.1
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 13
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 0 24 857 81 0 1299
Future Volume (vph) 0 24 857 81 0 1299
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Link Speed (mph) 25 40 40
Link Distance (ft) 296 237 582
Travel Time (s) 8.1 4.0 9.9
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 3% 1% 3% 3% 1%
Shared Lane Traffic (%)
Sign Control Stop Free Free
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 14
Intersection
Int Delay, s/veh 0.1
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Vol, veh/h 0 24 857 81 0 1299
Future Vol, veh/h 0 24 857 81 0 1299
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free
RT Channelized - None - None - None
Storage Length - 0 - - - -
Veh in Median Storage, # 0 - 0 - - 0
Grade, % 0 - 0 - - 0
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 3 1 3 3 1
Mvmt Flow 0 26 932 88 0 1412
Major/Minor Minor1 Major1 Major2
Conflicting Flow All - 510 0 0 - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - 6.96 - - - -
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - 3.33 - - - -
Pot Cap-1 Maneuver 0 506 - - 0 -
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - 506 - - - -
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach WB NB SB
HCM Control Delay, s 12.5 0 0
HCM LOS B
Minor Lane/Major Mvmt NBT NBR WBLn1 SBT
Capacity (veh/h) - - 506 -
HCM Lane V/C Ratio - - 0.052 -
HCM Control Delay (s) - - 12.5 -
HCM Lane LOS - - B -
HCM 95th %tile Q(veh) - - 0.2 -
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 15
Lane Group EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Volume (vph) 0 1492 829 23 0 79
Future Volume (vph) 0 1492 829 23 0 79
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Grade (%) 3% -3% 0%
Link Speed (mph) 35 35 25
Link Distance (ft) 345 853 219
Travel Time (s) 6.7 16.6 6.0
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 1% 3% 3% 3% 3%
Shared Lane Traffic (%)
Sign Control Free Free Stop
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 16
Intersection
Int Delay, s/veh 0.4
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 1492 829 23 0 79
Future Vol, veh/h 0 1492 829 23 0 79
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - - 0
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 3 -3 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 1 3 3 3 3
Mvmt Flow 0 1622 901 25 0 86
Major/Minor Major1 Major2 Minor2
Conflicting Flow All - 0 - 0 - 463
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - - - - - 6.96
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - - - - - 3.33
Pot Cap-1 Maneuver 0 - - - 0 543
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - - - - 543
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach EB WB SB
HCM Control Delay, s 0 0 12.9
HCM LOS B
Minor Lane/Major Mvmt EBT WBT WBR SBLn1
Capacity (veh/h) - - - 543
HCM Lane V/C Ratio - - - 0.158
HCM Control Delay (s) - - - 12.9
HCM Lane LOS - - - B
HCM 95th %tile Q(veh) - - - 0.6
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix D
Trip Generation Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson/Petrovitsky (Renton)
Trip Generation Estimate
TENW Project No. 5922
ITE
Land Use Units 1,2 LUC 2 In Out Trip Rate 2 In Out Total
WEEKDAY DAILY
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%265.12 1,061 1,060 2,121
Pass-by 3 58%-615 -615 -1,230
446 445 891
Drive-In Bank 2,850 SF 912 50%50%100.35 143 143 286
Pass-by 3 32%-46 -46 -92
97 97 194
0 0 0
Gross Daily Trips = 1,204 1,203 2,407
Less Pass-by Trips =-661 -661 -1,322
Net New Daily Trips = 543 542 1,085
WEEKDAY AM PEAK HOUR
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%16.06 64 64 128
Pass-by 60%-38 -39 -77
26 25 51
Drive-In Bank 2,850 SF 912 58%42%9.95 16 12 28
Pass-by 29%-5 -3 -8
11 9 20
Gross AM Peak Hour Trips = 80 76 156
Less Pass-by Trips =-43 -42 -85
Net New AM Peak Hour Trips = 37 34 71
WEEKDAY PM PEAK HOUR
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%18.42 74 73 147
Pass-by 56%-41 -41 -82
33 32 65
Drive-In Bank 2,850 SF 912 50%50%21.01 30 30 60
Pass-by 35%-11 -10 -21
19 20 39
Gross PM Peak Hour Trips = 104 103 207
Less Pass-by Trips =-52 -51 -103
Net New PM Peak Hour Trips = 52 52 104
Notes:
1. SF = Square Feet, VFP = Vehicle Fueling Positions
2. Land Use Codes, trip rates/equations, and pass-by trip percentages based on Institute of Transportation Engineers, Trip Generation Manual, 11th edition.
3. Daily pass-by assumed to be average of AM and PM peak hour pass-by.
Benson/Petrovitsky (Renton)
Weekday Trip Generation Summary
Directional Distribution Trips Generated
8/5/2022
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
Transportation Planning | Design | Traffic Impact & Operations
11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747
MEMORANDUM
DATE: October 28, 2022
TO: Jill Ding
City of Renton
FROM: Amy Wasserman / Jeff Schramm
TENW
SUBJECT: Street Modification Request
Benson-Petrovitsky Retail (PRE22-000218)
TENW Project #2022-257
This memorandum documents the street modification request prepared for the proposed Benson-Petrovitsky
Retail project located on the northeast corner of Benson Drive S (SR 515) and SE Petrovitsky Road (SE 176th
St) in Renton. The purpose of this document is to present the proposed improvements to Benson Drive S and
SE Petrovitsky Road as part of a formal street modification request to the City of Renton.
Project Description
The project site is located on three adjacent parcels (#2923059110, #2923059095, and
#2923059017) on the northeast corner of the intersection of Benson Drive S (SR 515) and SE Petrovitsky
Road (SE 176th Street) in Renton as shown in the Attachment A vicinity map. The proposed project would
consist of up to 4,088 square feet (SF) of building area for a convenience market with gasoline pumps (8
vehicle fueling positions (VPDs)) and a 2,850 SF bank with a drive-thru ATM lane.
Vehicular access to the site would be provided by two right-in right-out (RIRO) only driveways; one each on
SE Petrovitsky Road and Benson Drive S. A preliminary site plan is included in Attachment B.
Street Modification Justification
The proposed roadway design and frontage improvements on SE Petrovitsky Road and Benson Drive S
deviate from the standards outlined in the City of RentonÊs Municipal Code (RMC) 4-6-060. However, the
proposed design is consistent with the planned improvements included in the City of RentonÊs 2022-2027
Transportation Improvement Program (TIP) for the Carr Road corridor (City TIP #31) and also identified in the
preliminary (pre-30%) design plans for the intersection improvements prepared by the CityÊs Transportation
Division in 2014/2015. Due to the proposed frontage design being required by the City, a street
modification is required to allow a modification to the standard frontage design along both roads.
Additionally, all of the conditions identified by the City of Renton as required project mitigation on the SE
Petrovitsky Road and Benson Drive S frontages are being met with the design of the Benson-Petrovitsky Retail
project as further described next.
EXHIBIT 13
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 2
SE Petrovitsky Road (176th St SE)
SE Petrovitsky Road (176th St SE) is a five lane Principal Arterial. Per Renton Municipal Code (RMC) 4-6-
060, minimum ROW width required on a five-lane principal arterial is 103 feet (half-street ROW=51.5 feet).
Based on existing survey, the existing half street ROW width on the site frontage is approximately as follows:
o 42.0 feet along parcel #2923059110
o 30.0 feet along parcel #2923059095
o 42.0 feet along parcel #2923059017
Street frontage improvements on the north side of SE Petrovitsky Road identified in the CityÊs Transportation
Division preliminary plan for TIP #31 include roadway widening to provide an additional 11-foot wide right-
turn only lane, 0.5-foot-wide curb, 8-foot-wide landscaped planter, 12-foot wide sidewalk, and a 2-foot clear
area from back of sidewalk to the new ROW line.
These street and frontage improvements identified by the City Transportation Division to be provided by the
developer will require varying ROW dedication along the frontage of the 3 parcels. Subject to final survey,
the ROW dedication width on the site frontage is anticipated to be as follows to provide a total future half-
street public ROW of 61.5 feet along the Benson-Petrovitsky Retail project frontage:
o 19.5 feet along parcel #2923059110
o 31.5 feet along parcel #2923059095
o 19.5 feet along parcel #2923059017
A street section showing and labelling the existing ROW line, centerline of ROW, ROW dedication,
centerline of pavement, pavement width, showing and labelling all the street frontage elements and widths is
provided in Attachment B and will be included with the land use application.
Benson Drive S (108th Ave SE/ SR 515)
Benson Drive S (108th Ave SE/ SR 515) is a Principal Arterial. Per Renton Municipal Code (RMC) 4-6-060,
the minimum ROW width required on a five-lane principal arterial is 103 feet (half-street ROW = 51.5 feet).
Based on existing survey, the existing half street ROW width on the Benson Drive S site frontage is
approximately 45 feet.
Street frontage improvements on the east side of Benson Drive S identified per RMC 4-6-060 and also
included in the CityÊs Transportation Division preliminary plan for TIP #31 include roadway widening to
provide an 11-foot-wide acceleration lane, 0.5-foot-wide curb, 8-foot-wide landscaped planter, 8-foot-wide
sidewalk, and 2-foot clear width from the back of sidewalk to the new ROW line.
The street and frontage improvements identified by the City Transportation Division to be provided by the
developer will require a ROW dedication of 17.5-ft and the total future half-street public ROW would be
62.5 feet along the Benson-Petrovitsky Retail project frontage.
A street section showing and labelling the existing ROW line, centerline of ROW, ROW dedication,
centerline of pavement, pavement width, showing and labelling all the street frontage elements and widths is
provided in Attachment B and will be included with the land use application.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 3
Compliance with Decision Criteria
The street and frontage improvements to be constructed on SE Petrovitsky Road and Benson Drive S by the
Benson-Petrovitsky Retail project would meet all of the following decision criteria outlined in Renton Municipal
Code (RMC) 4-9-250-D-2 related to a modification request:
A) Substantially implements the policy direction of the policies and objectives of the Comprehensive Plan
Land Use Element and the Community Design Element and the proposed modification is the minimum
adjustment necessary to implement these policies and objectives;
B) Will meet the objectives and safety, function, appearance, environmental protection and
maintainability intended by the Code requirements, based upon sound engineering judgement;
C) Will not be injurious to other property(ies) in the vicinity;
D) Conforms to the intent and purpose of the Code;
E) Can be shown to be justified and required for the use and situation intended
F) Will not create adverse impacts to other property(ies) in the vicinity.
Conclusion
The applicant for the proposed Benson-Petrovitsky Retail project requests the CityÊs approval of street
modifications for the SE Petrovitsky Road and Benson Drive S frontage improvements associated with the
Benson-Petrovitsky Retail project since the street and frontage improvements being constructed by the project
on both SE Petrovitsky Road and Benson Drive S are being required by the City as part of a planned TIP
project for the Carr Road corridor (TIP #31).
If you have any questions regarding the information presented in this memo, please contact me at
amy@tenw.com.
Attachments
c: Michelle Woodward, Tekin & Associates
Jeff Schramm, Principal TENW
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 4
ATTACHMENT A
Site Vicinity
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
ATTACHMENT B
Site Plan with Street Sections
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
RIGHT OF WAY
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BENSON AND PETROVITSKY REDEVELOPMENT
A PORTION OF SECTION 29, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M.,
CITY OF RENTON, KING COUNTY, WASHINGTON
J. RAUSCH
B. ALLEN
J. RAUSCH
29 23N 05E
2022.10.25
19-045
19-045-C
C1
1 4
CALL 811 AT LEAST 48
HOURS BEFORE YOU DIG
VERIFICATION NOTE
ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE
IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY
CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS
WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER
IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED.
PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING
TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF
THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION
ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY
CONFLICTS ARE IDENTIFIED.
GENERAL SITE INFORMATION
SITE ADDRESS:17,426 BENSON DRIVE S, RENTON, WA 98005
PARCEL#:2923059110, 2923059095, 2923059017
ON-SITE PROJECT AREA: 73,002 SF (1.68 ACRES)
TOTAL NEW+REPLACED IMPERVIOUS AREA:47,705 SF (1.10 ACRES)
TA ACQUISITIONS LLC
2600 N DALLAS PARKWAY, SUITE 370
FRISCO, TEXAS 75034
OWNER/APPLICANT
JOHN GRAVES ARCHITECTS & PLANNERS
3110 RUSTON WAY, SUITE D
TACOMA, WA 98402
PHONE: 253-272-4214
ARCHITECT
CONTOUR ENGINEERING LLC
4706 97TH ST NW, SUITE 100
GIG HARBOR, WA 98332
PHONE: (253) 857-5454
CIVIL ENGINEER
PROPOSED 7-11
4,178SF
PROPOSED
CHASE BANK
2,860 SF
DIESEL/GASOLINE TANKS
FUEL PUMPS
PROPOSED ATM
7.5'
PLANTER
8.0' SIDEWALK
1.5%
2.0' TO ROW
0.5' CURB
EX
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54.0' PUBLIC RIGHT OF WAY 45' EXISTING PUBLIC RIGHT OF WAY
33.0'±33.0'±21.0'
C BENSON CROSS SECTION
NOT TO SCALE
AC1
C
C1
11.0' ACCELERATION
LANE
5.5'
PLANTER
12.0' SIDEWALK
1.5%
2.0' TO ROW
0.5' CURB EX
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EXISTING 42.0' PUBLIC RIGHT OF WAY
28.0'±33.0'±9.0'
A PETROVITSKY CROSS SECTION
NOT TO SCALE
11.0' RIGHT
TURN LANE
2.0'EXISTING CURB
TO BE REMOVED
19.5' ROW
DEDICATION VARIES
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EXISTING CURB
TO BE REMOVED
17.5' ROW DEDICATION
2.0'
MATCH EXISTING
PAVEMENT SECTION
EXISTING 42.0' PUBLIC RIGHT OF WAY
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±
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'
MATCH EXISTING
PAVEMENT SECTIONLANE LINE
SAWCUT LINE
LANE LINE SAWCUT LINE
5.5 ±
2.5 ±
62.5' PROPOSED PUBLIC RIGHT OF WAY
75' ± PROPOSED PAVEMENT WIDTH
72' ± PROPOSED PAVEMENT WIDTH
61.5' PROPOSED PUBLIC RIGHT OF WAY
2.5'
PLANTER
0.5'
PLANTER
8.0'
PLANTER
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2.0' TO ROW
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EXISTING 42.0' PUBLIC RIGHT OF WAY
28.0'±33.0'±9.0'
B PETROVITSKY CROSS SECTION
NOT TO SCALE
9.0' RIGHT
TURN LANE
2.0'EXISTING CURB
TO BE REMOVED
31.5' ROW DEDICATION VARIES
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61.5' PROPOSED PUBLIC RIGHT OF WAY
BC1 AC1
2.0' RIGHT
TURN LANE
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
From: Michael Sippo
Sent: Thursday, January 5, 2023 1:33 PM
To: Jill Ding
Cc: McColloch, Duffy
Subject: RE: [EXTERNAL] City of Renton LUA Acceptance: TA Benson Petro, LUA22-
000424, ECF, SA-H, MOD, MOD
Jill,
Yes, that will be ok if the applicant directly contacts WSDOT.
Duffy,
Welcome to the project, just ask that you cc me on any correspondence with the applicant. Regarding
your comment on the ICE it may be prudent that we set up a quick meeting to discuss the City’s planned
improvements at that corner.
Thanks!
MICHAEL S. SIPPO, Civil Engineer III
City of Renton | CED | Development Engineering Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425) 430-7298| msippo@rentonwa.gov
From: Jill Ding <JDing@Rentonwa.gov>
Sent: Thursday, January 5, 2023 1:27 PM
To: Michael Sippo <MSippo@Rentonwa.gov>
Subject: FW: [EXTERNAL] City of Renton LUA Acceptance: TA Benson Petro, LUA22-000424, ECF, SA-H,
MOD, MOD
Mike,
See the comments below from WSDOT, should I go ahead and have the applicant contact WSDOT
directly?
JILL DING, Senior Planner
City of Renton | CED | Planning Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425) 430-6598 | jding@rentonwa.gov
From: CityClerk <CityClerk@Rentonwa.gov>
Sent: Thursday, January 5, 2023 1:24 PM
To: Jennifer Cisneros <JCisneros@Rentonwa.gov>; Jill Ding <JDing@Rentonwa.gov>
EXHIBIT 14
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Cc: Vanessa Dolbee <VDolbee@Rentonwa.gov>
Subject: FW: [EXTERNAL] City of Renton LUA Acceptance: TA Benson Petro, LUA22-000424, ECF, SA-H,
MOD, MOD
FYI
Jason A. Seth, MMC
City Clerk/Public Records Officer
Office: 425-430-6502
Cell: 206-635-6100
Mondays: 8 am – 9 pm - City Hall
Tues-Fri: 7 am to 4 pm - Work From Home
rentonwa.gov/cityclerk
All correspondence received at this email address is subject to Washington State’s Public Records Act –
RCW 42.56.
From: McColloch, Duffy <McCollD@wsdot.wa.gov>
Sent: Thursday, January 5, 2023 1:07 PM
To: CityClerk <CityClerk@Rentonwa.gov>
Subject: RE: [EXTERNAL] City of Renton LUA Acceptance: TA Benson Petro, LUA22-000424, ECF, SA-H,
MOD, MOD
WSDOT has the following comments on this notice and TIA, attached and below.
1. See attached TIA.
2. Any impacts to SR 515 that are under WSDOT approval jurisdiction needs reviewed and will lead
to a developer agreement as the formal approval document. I can be the point of contact if I can
be put in touch directly with the developer.
Thanks,
Duffy McColloch, PE 206-440-4713
Local Agency/Developer Services Engineer
WSDOT – NW Region Development Services
From: Jennifer Cisneros <JCisneros@Rentonwa.gov>
Sent: Thursday, December 22, 2022 11:31 AM
To: glen.stamant@muckleshoot.nsn.us; Laura.murphy@muckleshoot.nsn.us; sepacenter@dnr.wa.gov;
Planning@TukwilaWA.gov; jgreene@kingcounty.gov; steveo@newcastlewa.gov;
andy.swayne@pse.com; sepa@pscleanair.org; Jim.Ishimaru@kingcounty.gov; McColloch, Duffy
<McCollD@wsdot.wa.gov>; egeorge@kentwa.gov; Madura, Jalaine <Jalaine.Madura@seattle.gov>;
'katherine.fischer@kingcounty.gov' <katherine.fischer@kingcounty.gov>; SEPA@dahp.wa.gov;
R4Splanning@dfw.wa.gov; NWS.Compliance@usace.army.mil; culturalpreservation@duwamishtribe.org
Cc: Jill Ding <JDing@Rentonwa.gov>; Margarette Bravo <MBravo@rentonwa.gov>
CAUTION: This email originated from outside the City of Renton. Do not click links, reply or open
attachments unless you know the content is safe.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Subject: [EXTERNAL] City of Renton LUA Acceptance: TA Benson Petro, LUA22-000424, ECF, SA-H, MOD,
MOD
WARNING: This email originated from outside of WSDOT. Please use caution with links and attachments.
Hello,
Please see attached and linked documents below for City of Renton LUA acceptance for the following
project:
TA Benson Petro
LUA22-000424, ECF, SA-H, MOD, MOD
Related studies linked below:
Traffic Impact Analysis
As the project progresses, more information will be available by request and through our online Public
Notice of Land Use Applications Map.
Regards,
JENNY CISNEROS, Planning Technician
City of Renton | CED | Planning Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425) 430-6583 | jcisneros@rentonwa.gov
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson-Petrovitsky Retail
PRE22-000218
Renton, WA
Traffic Impact Analysis
October 4, 2022
Prepared for:
TA Benson Petro, LLC
2600 Dallas Parkway, Suite 370
Frisco, TX 75034
Prepared by:
TENW
Transportation Engineering NorthWest
11400 SE 8th Street, Suite 200
Bellevue, WA 98004
Office: (425) 889-6747
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page i
Table of Contents
FINDINGS/CONCLUSIONS ......................................................................................................1
INTRODUCTION......................................................................................................................2
Project Description................................................................................................................2
Project Approach..................................................................................................................2
Primary Data and Information Sources ......................................................................................3
EXISTING CONDITIONS...........................................................................................................6
Study Area..........................................................................................................................6
Roadway Network ...............................................................................................................6
Transit Service......................................................................................................................7
Non-Motorized Transportation Facilities ....................................................................................7
Collision History...................................................................................................................7
Traffic Volumes.....................................................................................................................8
Intersection Levels of Service .................................................................................................11
FUTURE CONDITIONS ............................................................................................................13
Planned Transportation Improvements .....................................................................................13
Project Trip Generation........................................................................................................13
Project Trip Distribution and Assignment ..................................................................................13
Future Traffic Volumes..........................................................................................................14
Future Level of Service .........................................................................................................23
Site Access Assessment........................................................................................................23
MITIGATION.........................................................................................................................25
Appendices
Appendix A – Detailed Collision History
Appendix B – Peak Hour Turning Movement Counts
Appendix C – Level of Service (LOS) Calculations
Appendix D – Trip Generation Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page ii
List of Figures and Tables
Figure 1 Project Site Vicinity .......................................................................................................4
Figure 2 Preliminary Site Plan .....................................................................................................5
Figure 3 2022 Existing AM Peak Hour Traffic Volumes....................................................................9
Figure 4 2022 Existing PM Peak Hour Traffic Volumes ..................................................................10
Figure 5 Peak Hour Project Trip Distribution (Inbound)....................................................................15
Figure 6 Peak Hour Project Trip Distribution (Outbound) .................................................................16
Figure 7 AM Peak Hour Project Trip Assignment...........................................................................17
Figure 8 PM Peak Hour Project Trip Assignment ...........................................................................18
Figure 9 2024 No Action AM Peak Hour Traffic Volumes..............................................................19
Figure 10 2024 No Action PM Peak Hour Traffic Volumes ............................................................20
Figure 11 2024 With Project AM Peak Hour Traffic Volumes.........................................................21
Figure 12 2024 With Project PM Peak Hour Traffic Volumes..........................................................22
Table 1 Existing Roadway Network Summary – Project Site Vicinity ..................................................7
Table 2 Collision Data Summary, January 1, 2019, to December 31, 2021.....................................8
Table 3 LOS Criteria for Signalized and Stop-Controlled Intersections1 ............................................11
Table 4 Existing 2022 Weekday Peak Hour LOS Summary ..........................................................12
Table 5 Trip Generation Summary............................................................................................13
Table 6 Project Trip Distribution................................................................................................14
Table 7 Year 2024 Weekday Peak Hour LOS Summary..............................................................23
Table 8 Year 2024 With Project Site Access Peak Hour LOS & Queue Summary..............................24
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 1
FINDINGS/CONCLUSIONS
This Traffic Impact Analysis (TIA) has been prepared for the proposed Benson-Petrovitsky Retail project
located on the northeast corner of Benson Dr S (108th Ave SE) and SE Petrovitsky Rd (SE Carr Rd) in
Renton, WA.
Project Proposal. The proposed Benson-Petrovitsky Retail project will include up to 4,088 square
feet (SF) of building area for a convenience market with gasoline pumps (8 vehicle fueling positions
(VFPs)) and a 2,850 SF bank with a drive-thru ATM lane. The existing site is vacant. Vehicular access
to/from the proposed development would be provided by two right-in right-out only driveways; one
on Benson Dr S and one on SE Petrovitsky Rd. The project is anticipated to be occupied by 2024.
Trip Generation. The proposed project is estimated to generate 1,085 net new weekday daily
trips, with 71 net new trips occurring during the weekday AM peak hour (37 entering, 34 exiting),
and 104 net new trips occurring during the weekday PM peak hour (52 entering, 52 exiting).
Future Year LOS. LOS analyses were conducted for future year 2024 weekday AM and PM peak
hour conditions at four signalized off-site study intersections. All study intersections are expected to
operate at acceptable levels during the weekday AM and PM peak hours in 2024 without or with
the proposed project.
Site Access Analysis. All controlled movements at the two site access driveways on Benson Dr S
and SE Petrovitsky Rd are expected to operate at LOC C or better in 2024 with minimal queueing.
Mitigation.
Transportation Impact Fees. To mitigate long-term traffic impacts, the City of Renton requires payment
of a traffic impact fee. The City’s currently adopted 2021-2022 impact fee rate is $139.77 per SF
for a drive-in bank and $65,313.08 per pump for a gas station with convenience store. Final
transportation impact fees will be paid based on the current impact fee rate at the time of building
permit issuance less any applicable transportation impact fee credit. Based on preliminary
correspondence with the City of Renton, the project will be eligible for transportation impact fee credit
for a portion of the frontage improvements being required on SE Petrovitsky Rd and Benson Dr S per
City Transportation Improvement Program (TIP) Project #31.
Frontage Improvements. The City has requested that the Benson-Petrovitsky Retail project dedicate
right-of-way and construct street improvements along the project frontages on both Benson Dr S and
SE Petrovitsky Rd. This will include a westbound right-turn lane along the SE Petrovitsky Rd frontage
and a complementary northbound receiving lane on the Benson Dr S frontage that will turn into a
merge lane north of the intersection. These improvements are part of the City’s planned improvements
for the Carr Road corridor (City TIP #31), and thus a portion of the construction costs would be
eligible for credit against the City transportation impact fees.
Access Improvements. The Benson-Petrovitsky Retail project will construct c-curbing on SE Petrovitsky
Rd to restrict the proposed site access on SE Petrovitsky Rd to right-in, right-out (RIRO) movements only.
Off-Site Improvements. Based on the results of the analysis, the existing transportation facilities are
anticipated to accommodate the additional traffic generated by the proposed project. Therefore, no
project-specific off-site transportation improvements are proposed.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
TENW October 4, 2022
Page 2
INTRODUCTION
This Traffic Impact Analysis (TIA) has been prepared for the proposed Benson-Petrovitsky Retail project
located on the northeast corner of Benson Dr S (108th Ave SE) and SE Petrovitsky Rd (SE Carr Rd) in
Renton, WA as shown in the Figure 1 Vicinity Map.
Project Description
The proposed Benson-Petrovitsky Retail project will include up to 4,088 square feet (SF) of building
area for a convenience market with gasoline pumps (8 vehicle fueling positions (VFPs)) and a 2,850
SF bank with a drive-thru ATM lane. The existing site is vacant.
Vehicular access to/from the proposed development would be provided by two right-in right-out only
driveways; one on Benson Dr S and one on SE Petrovitsky Rd. The project is anticipated to be
occupied by 2024. A preliminary site plan is provided in Figure 2.
Project Approach
The specific scope of work used in the evaluation of the traffic impacts of the proposed Benson-
Petrovitsky Retail were confirmed through scoping discussions with the City of Renton. To analyze the
traffic impacts from the project, the following tasks were undertaken:
Assessed existing conditions through field reconnaissance and reviewed existing planning
documents.
Described and assessed existing transportation conditions in the area.
Documented the latest 3-year collision history at off-site study intersections.
Documented existing (2022) traffic volumes and intersection levels of service (LOS) at off-site
study intersections during the weekday AM and PM peak hours.
Documented future planned transportation improvements in the project vicinity.
Developed trip generation estimates for weekday daily, AM, and PM peak hour conditions
based on the proposed land use.
Documented trip distribution and assignment of weekday AM and PM peak hour project-
generated traffic.
Documented traffic forecasts and assumptions for year 2024 conditions at off-site study
intersections without and with the proposed development.
Analyzed weekday AM and PM peak hour LOS for future year 2024 conditions without and
with the proposed development at off-site study intersections.
Assessed operations at the proposed site access locations, including LOS and queuing during
weekday AM and PM peak hour conditions.
Documented proposed traffic mitigation.
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Primary Data and Information Sources
2022 AM and PM peak hour traffic counts collected by IDAX.
City of Renton Comprehensive Plan Transportation Element, Adopted June 22, 2015
(Amended Dec. 10, 2018)
City of Renton 2022 - 2027 Six-Year Transportation Improvement Program.
Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition, 2021.
Highway Capacity Manual (HCM 6th Edition), 2016.
Washington State Department of Transportation (WSDOT) Collision Data, 2019-2021.
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Figure 1 Project Site Vicinity
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Figure 2 Preliminary Site Plan
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EXISTING CONDITIONS
Study Area
The existing transportation study area and roadway network providing access to the Benson-
Petrovitsky Retail site is shown on Figure 1. The off-site study intersections evaluated in this
transportation analysis were identified and agreed upon by the City of Renton as part of the traffic
scoping process. The four signalized off-site study intersections are as follows (see also Figure 3):
1. 106th Pl SE / SE Carr Rd
2. Benson Dr S / Benson Rd S
3. Benson Dr S (108th Ave SE/SR 515) / SE Petrovitsky Rd (SE Carr Rd)
4. 108th Ave SE / SE 180th St
Roadway Network
The primary anticipated travel routes to and from the Benson-Petrovitsky Retail site in the City of Renton
include SE Petrovitsky Rd (SE Carr Rd) and Benson Dr (108th Ave SE/SR 515).
Table 1 describes the existing characteristics of these roadways in terms of orientation, arterial
classification, posted speed limits, number of lanes, presence of street parking, pedestrian facilities,
and bicycle facilities. The relationship of these roadways to the project site is shown on Figure 1.
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Table 1
Existing Roadway Network Summary – Project Site Vicinity
Roadway Orientation Classification
Speed
Limit
(mph)
Number
Travel
Lanes
Street
Parking Sidewalks
Bicycle
Facilities
SE Petrovitsky
Rd (SE Carr Rd)
East/
West
Principal
Arterial 35 mph 5 None Both Sides None
Benson Dr S
(108th Ave SE
(SR 515)
North/
South
Principal
Arterial 40 mph 5 None Both Sides None
Transit Service
Public transportation in the immediate project vicinity is served by King County Metro. The closest
transit stops are located on SE Petrovitsky Rd across the street from the proposed project and on the
southeast corner of the Benson Dr S (108th Ave SE/SR 515)/SE Petrovitsky Rd (SE Carr Rd)
intersection. These stops provide access to King County Metro Transit routes 160 and 906.
Route 167 provides service between Renton and the University District. Weekday service currently
runs from 6:00 AM to 7:45 AM with approximately 30 minute headways.
DART Route 906 provides service between Fairwood, Valley Medical Center, Southcenter, and the
Tukwila Station. Weekday service currently runs from 4:45 AM to 10:45 PM with approximately 30
minute headways.
Non-Motorized Transportation Facilities
Non-motorized transportation facilities in the immediate project vicinity include sidewalks on both
sides of SE Petrovitsky Rd (SE Carr Rd) and Benson Dr S (108th Ave SE/SR 515). Crosswalks and
pedestrian push buttons are also provided at all signalized intersections in the project vicinity. No
bike lanes are provided along SE Petrovitsky Rd (SE Carr Rd) or Benson Dr S (108th Ave SE/SR
515).
Collision History
Historic collisions at the study intersections were analyzed for the three-year period from 2019 to
2021. Collision data was provided by WSDOT. Summaries of the total and yearly average collisions
during this period are provided in Table 2. The detailed collision history is included in Appendix A.
Route 167 starts at
the South Renton
Park and Ride,
which is not in this
vicinity.
Route 160 (as
mentioned in the
paragraph section)
does stop in the
vicinity.
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Table 2
Collision Data Summary, January 1, 2019, to December 31, 2021
Study Intersection 20
1
9
20
2
0
20
2
1
3-Year
Total
Collisions
Avg.
Annual
Collisions
Est.
AWDT1
Collisions
per
MEV2
1. 106th Pl SE / SE Carr Rd 1 2 1 4 1.3 21,860 0.17
2. Benson Dr S / Benson Rd S 3 0 5 8 2.7 23,400 0.31
3. Benson Dr S (108th Ave SE/SR 515) / SE
Petrovitsky Rd (SE Carr Rd)
4 6 3 13 4.3 41,170 0.29
4. 108th Ave SE / SE 180th St 2 3 1 6 2.0 24,140 0.23
Source: WSDOT Collision Records.
1 AWDT = Average Weekday Daily Traffic. Estimated daily volumes are based on 2022 PM peak hour volumes and a K-factor of 10.
2 MEV = Million Entering Vehicles.
Intersection collision rates over 1.0 collision per MEV generally warrant further review to determine if
any patterns exist. Based on the collision data, none of the study intersections have a rate that exceeds
1.0 collision per MEV.
Traffic Volumes
Existing weekday AM and PM peak hour traffic volumes at the four off-site study intersections were
based on counts collected in August 2022. The AM peak hour represents the highest one-hour time
period between 7:00 and 9:00 AM. The PM peak hour represents the highest one-hour time period
between 4:00 and 6:00 PM. Figures 3 and 4 illustrate the existing 2022 weekday AM and PM
peak hour traffic volumes at the study intersections. Appendix B includes the existing AM and PM
peak hour traffic count sheets.
WSDOT usually categorizes crashes by severity
instead of using MEV to prioritize reducing fatal
and serious injury crashes. Suggest adding a
column for that for discussion.
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Figure 3 2022 Existing AM Peak Hour Traffic Volumes
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Figure 4 2022 Existing PM Peak Hour Traffic Volumes
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Intersection Levels of Service
Existing weekday AM and PM peak hour level of service (LOS) analyses were conducted at the four
off-site study intersections. LOS generally refers to the degree of congestion on a roadway or
intersection. It is a measure of vehicle operating speed, travel time, travel delays, and driving comfort.
A letter scale from A to F generally describes intersection LOS. At signalized intersections, LOS A
represents free-flow conditions (motorists experience little or no delays), and LOS F represents forced-
flow conditions where motorists experience an average delay in excess of 80 seconds per vehicle.
The LOS reported for signalized intersections represents the average control delay (sec/veh) and can
be reported for the overall intersection, for each approach, and for each lane group (additional v/c
ratio criteria apply to lane group LOS only). The LOS reported at stop-controlled intersections is based
on the average control delay and can be reported for each controlled minor approach, controlled
minor lane group, and controlled major-street movement (and for the overall intersection at all-way
stop controlled intersections).
Table 3 outlines the current HCM 6th Edition LOS criteria for signalized and stop-controlled
intersections based on these methodologies.
Table 3
LOS Criteria for Signalized and Stop-Controlled Intersections1
SIGNALIZED INTERSECTIONS UNSIGNALIZED INTERSECTIONS
LOS by Volume-to
Capacity (V/C) Ratio2
LOS by Volume-to
Capacity (V/C) Ratio3
Control Delay
(sec/veh) 1.0 > 1.0
Control Delay
(sec/veh) 1.0 > 1.0
10 A F 10 A F
> 10 to 20 B F > 10 to 15 B F
> 20 to 35 C F > 15 to 25 C F
> 35 to 55 D F > 25 to 35 D F
> 55 to 80 E F > 35 to 50 E F
> 80 F F > 50 F F
1 Source: Highway Capacity Manual (6th Edition), Transportation Research Board, 2016.
2 For approach-based and intersection-wide assessments at signals, LOS is defined solely by control delay.
3 For two-way stop controlled intersections, the LOS criteria apply to each lane on a given approach and to each approach on the minor street. LOS is not calculated for major-street approaches or for the intersection as a whole at two-way stop
controlled intersections. For approach-based and intersection-wide assessments at all-way stop controlled intersections,
LOS is solely defined by control delay.
Level of service calculations at the off-site study intersections were calculated using Synchro 11 traffic
analysis software. Existing signal timing used in the analysis was provided by the City of Renton.
Based on the City of Renton and WSDOT’s LOS standards, the LOS standard is LOS E at all study
intersections because the Transportation Element of the City’s Comprehensive Plan specifies a
minimum standard of LOS E for the SE Carr Road and the State Route (SR) 515 (Benson Dr S)
corridors.
The 2022 existing weekday AM and PM peak hour LOS analysis results at the off-site study
intersections are summarized in Table 4. The 2022 existing detailed LOS worksheets are included
in Appendix C.
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Table 4
Existing 2022 Weekday Peak Hour LOS Summary
AM Peak Hour PM Peak Hour
Signalized Study Intersection LOS
Delay
(sec)LOS
Delay
(sec)
1. 106th Pl SE / SE Carr Rd B 10.4 B 13.6
2. Benson Dr S / Benson Rd S B 12.0 B 10.2
3. Benson Dr S (SR 515) / SE Petrovitsky Rd E 55.1 D 53.3
4. 108th Ave SE / SE 180th St B 10.4 B 16.6
As shown in Table 4, all four signalized study intersections currently operate at LOS E or better during
the weekday AM and PM peak hours.
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FUTURE CONDITIONS
Planned Transportation Improvements
This section documents the known planned transportation improvements in the study area. Based on
a review of the City of Renton’s 2022-2027 Transportation Improvement Program (TIP), there is one
planned improvement in the vicinity of the proposed project:
TIP #31: Carr Road Improvements (Davis Ave S to 109th Ave SE)
Description:
Potential roadway improvements are still being identified but may include roadway
realignment/widening at several locations to address geometric deficiencies, widening to
5-lane roadway (2 lanes westbound, 3 lanes eastbound), and bicycle lanes on new
alignment. The project is in the planning stage.
Project Trip Generation
The trip generation estimates for the proposed Benson-Petrovitsky Retail project were based on
methodology documented in the Institute of Transportation Engineers (ITE) Trip Generation Manual,
11th Edition (2021) for Land Use Code (LUC) 945 (Convenience Store/Gas Station), and LUC 912
(Drive-In Bank). Adjustments were made to the trip generation estimates to account for pass-by trips.
Pass-by Trips are trips that are made by vehicles that are already on the adjacent streets and make
intermediate stops at the commercial uses on route to a primary destination (i.e. on the way from
work to home). The pass-by trips estimated in the trip generation calculations were based on studies
included in the appendices of the ITE Trip Generation Manual, 11th Edition (2021).
The resulting net new weekday daily, AM peak hour, and PM peak hour trip generation estimates
for the proposed project are summarized in Table 5. Detailed trip generation calculations are
included in Appendix D.
Table 5
Trip Generation Summary
Net New Trips Generated
Weekday Time Period In Out Total
Daily 543 542 1,085
AM Peak Hour 37 34 71
PM Peak Hour 52 52 104
Project Trip Distribution and Assignment
The distribution and assignment of the new weekday AM and PM peak hour trips generated by the
proposed Benson-Petrovitsky Retail project was estimated based on existing and anticipated travel
patterns in the vicinity of the site and confirmed by City of Renton staff as part of the traffic scoping
for the project. Table 6 summarizes the resulting general trip distribution patterns.
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Table 6
Project Trip Distribution
Route (Direction)Trip Distribution
Benson Dr S (north)25%
108th Ave SE (south)25%
SE Carr Rd (west)25%
SE Petrovitsky Rd (east)25%
TOTAL 100%
The estimated Benson-Petrovitsky Retail peak hour inbound project trip distribution is illustrated in
Figure 5 and the outbound project trip distribution is illustrated in Figure 6. Based on the trip
distribution percentages shown in Table 6 and Figures 5 and 6, the net new weekday AM and PM
peak hour project trips were assigned to the streets in the project vicinity. The resulting assignment of
the net new AM and PM peak hour net new project trips is shown in Figures 7 and 8, respectively.
Future Traffic Volumes
The proposed Benson-Petrovitsky Retail project is anticipated to be occupied by 2024.
Year 2024 No Action (without project) peak hour traffic volumes were estimated by applying a 1.5
percent annual background growth rate to the existing volumes (confirmed by City Staff as part of
traffic scoping). In addition, the City confirmed that there are no significant pipeline projects in the
vicinity that needed to be included in the No Action traffic volumes.
The resulting future 2024 No Action AM and PM peak hour traffic volumes are shown in Figures 9
and 10. The 2024 With Project traffic volumes were determined by adding the trip assignment from
the proposed development (shown in Figures 7 and 8) to the future 2024 No Action traffic volumes.
The resulting 2024 With Project AM and PM peak hour traffic volumes at the off-site study
intersections and proposed site access driveways are shown in Figures 11 and 12.
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Figure 5 Peak Hour Project Trip Distribution (Inbound)
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Figure 6 Peak Hour Project Trip Distribution (Outbound)
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Figure 7 AM Peak Hour Project Trip Assignment
are any trips heading east? table 6 says
25% but i do not see any heading east on
SE Petrovitsky Rd.
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Figure 8 PM Peak Hour Project Trip Assignment
where are these 13 trips
going that are continuing
straight? there is no left
out of the access
why are 25% u-turning
here? are they coming
from the driveway at mall
area?
why are 75% of exiting
trips heading west?
are any trips heading east? table 6 says
25% but i do not see any heading east on
SE Petrovitsky Rd.
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Figure 9 2024 No Action AM Peak Hour Traffic Volumes
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Figure 10 2024 No Action PM Peak Hour Traffic Volumes
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Figure 11 2024 With Project AM Peak Hour Traffic Volumes
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Figure 12 2024 With Project PM Peak Hour Traffic Volumes
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Future Level of Service
Future year 2024 Level of Service (LOS) analyses were conducted at the four off-site study intersections
for weekday AM and PM peak hour No Action (without project) conditions and With Project
conditions. Existing intersection geometry was assumed at all study intersections except Benson Dr
S/SE Petrovitsky Rd as there are no planned improvements identified to be completed by 2024.
However, at Benson Dr S/SE Petrovitsky Rd, the with-project intersection geometry assumes a
westbound right-turn lane and a complementary northbound receiving lane that will turn into a merge
lane are constructed as part of the Benson-Petrovitsky Retail project.
Existing signal timing plans provided by the City of Renton and WSDOT were used in the analysis
except at Benson Dr S/SE Petrovitsky Rd where the with-project timing was optimized with the
planned improvements (cycle length was left the same as existing). The 2024 weekday AM and PM
peak hour LOS results at the study intersections without and with the proposed project are summarized
in Table 7. The LOS worksheets are included in Appendix C.
Table 7
Year 2024 Weekday Peak Hour LOS Summary
No Action With Project
Signalized Study Intersection LOS
Delay
(sec)LOS
Delay
(sec)
AM PEAK HOUR
1. 106th Pl SE / SE Carr Rd B 10.4 B 10.4
2. Benson Dr S / Benson Rd S B 12.5 B 12.6
3. Benson Dr S (108th Ave SE) / Petrovitsky Rd (SE Carr Rd)E 61.1 E 69.9
4. 108th Ave SE / SE 180th St B 10.5 B 11.0
PM PEAK HOUR
1. 106th Pl SE / SE Carr Rd B 13.7 B 13.7
2. Benson Dr S / Benson Rd S B 10.3 B 10.3
3. Benson Dr S (108th Ave SE) / SE Petrovitsky Rd (SE Carr
Rd)
E 59.0 E 63.0
4. 108th Ave SE / SE 180th St B 17.2 B 18.1
As shown in Table 7, all four signalized study intersections are expected to operate at acceptable
levels of service (LOS E or better) during the weekday AM and PM peak hours in 2024 with or
without the proposed Benson-Petrovitsky Retail project.
Site Access Assessment
Vehicular access to/from the proposed Benson-Petrovitsky Retail project is proposed via two right-in
right-out only driveways; one on Benson Dr S and one on SE Petrovitsky Rd. To assess the operations
of the site access locations, level of service (LOS) and queuing were analyzed.
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LOS and Queuing Analysis at Site Access
The LOS and queue calculations were conducted using Synchro 11 software based on methodology
outlined in the latest edition of the Highway Capacity Manual (6th Edition). The reported queues are
estimated 95th percentile queues that are exceeded only 5 percent of the time.
Table 8 summarizes the results of the 2024 with project LOS and queue analyses at the site access
driveways. The LOS and queue calculation sheets are included in Appendix C.
Table 8
Year 2024 With Project Site Access Peak Hour LOS & Queue Summary
AM Peak Hour PM Peak Hour
Site Access Controlled Movements LOS
Delay
(sec)
95th %
Queue
(ft)1 LOS
Delay
(sec)
95th %
Queue
(ft)1
A. Site Access Driveway / Benson Dr S
Westbound Right-Turn (exiting)C 18.2 <25’B 12.5 <25’
B. Site Access Driveway / SE Petrovitsky Rd
Southbound Right-Turn (exiting)B 14.4 <25’B 12.9 25’
1 Queues are 95th percentile queues. < 25’ indicates 95th percentile queue statistically less than 1 vehicle.
As shown in Table 8, all controlled movements at the two site access driveways are expected to
operate at LOS C or better with minimal queueing in 2024 during the weekday AM and PM peak
hours.
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MITIGATION
The following measures are identified to mitigate transportation impacts of the proposed Benson-Petrovitsky
Retail project.
Transportation Impact Fees. To mitigate long-term traffic impacts, the City of Renton requires payment
of a traffic impact fee. The City’s currently adopted 2021-2022 impact fee rate is $139.77 per SF
for a drive-in bank and $65,313.08 per pump for a gas station with convenience store. Final
transportation impact fees will be paid based on the current impact fee rate at the time of building
permit issuance less any applicable transportation impact fee credit. Based on preliminary
correspondence with the City of Renton, the project will be eligible for transportation impact fee credit
for a portion of the frontage improvements being required on SE Petrovitsky Rd and Benson Dr S per
City Transportation Improvement Program (TIP) Project #31.
Frontage Improvements. The City has requested that the Benson-Petrovitsky Retail project dedicate
right-of-way and construct street improvements along the project frontages on both Benson Dr S and
SE Petrovitsky Rd. This will include a westbound right-turn lane along the SE Petrovitsky Rd frontage
and a complementary northbound receiving lane on the Benson Dr S frontage that will turn into a
merge lane north of the intersection. These improvements are part of the City’s planned improvements
for the Carr Road corridor (City TIP #31), and thus a portion of the construction costs would be
eligible for credit against the City transportation impact fees.
Access Improvements. The Benson-Petrovitsky Retail project will construct c-curbing on SE Petrovitsky
Rd to restrict the proposed site access on SE Petrovitsky Rd to right-in, right-out (RIRO) movements only.
Off-Site Improvements. Based on the results of the analysis, the existing transportation facilities are
anticipated to accommodate the additional traffic generated by the proposed project. Therefore, no
project-specific off-site transportation improvements are proposed.
These changes would
require an ICE per Design
Manual section
1300.05(2) and a
channelization plan
reviewed and approved
by WSDOT. In general,
these elements are not in
line with WSDOT's goal
for pedestrian safety and
comfort and would need
to be addressed through
the ICE process.
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Appendix A
Detailed Collision History
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OFFICER REPORTED CRASHES THAT OCCURRED at OR in the vicinity of MULTIPLE INTERSECTIONS & ROAD SEGMENTS IN THE CITY OF RENTON
01/01/2017 - Avail 2022 See 2nd tab below for road info
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NAME MILEPOST DATE MOST SEVERE INJURY TYPE
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K
E
S VEHICLE 1 TYPE VEHICLE 2 TYPE FIRST COLLISION TYPE / OBJECT STRUCK VEHICLE 1 ACTION VEHICLE 2 ACTION
VEHICLE 1
COMPASS
DIRECTION FROM
VEHICLE 1
COMPASS
DIRECTION TO
VEHICLE 2
COMPASS
DIRECTION FROM
VEHICLE 2
COMPASS
DIRECTION TO
City Street SE PETROVITSKY RD 10900 109TH AVE SE 10/14/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Left Turn Going Straight Ahead South West West East
City Street SE PETROVITSKY RD 0 109TH AVE SE 01/28/2019 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead West East West East
City Street SE PETROVITSKY RD 0 111TH AVE SE 06/28/2019 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - one stopped - head-on Going Straight Ahead Stopped for Traffic East West Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 11022 111TH AVE SE 10/14/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Left Turn Making Left Turn East South South West
City Street SE PETROVITSKY RD 11196 113TH PL SE 10/12/2021 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead East West East West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 09/14/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead West East North South
City Street SE PETROVITSKY RD 11518 116TH AVE SE 12/12/2021 Suspected Minor Injury 1 0 2 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Making Left Turn West East South West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 09/23/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead West North East West
City Street SE PETROVITSKY RD 11518 116TH AVE SE 11/12/2020 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign West East Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 0 116TH AVE SE 06/26/2019 Suspected Serious Injury 2 0 3 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Left Turn Going Straight Ahead South West West East
City Street SE PETROVITSKY RD 11518 116TH AVE SE 11/15/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Going Straight Ahead West East North South
City Street SE PETROVITSKY RD 0 116TH AVE SE 07/29/2019 Possible Injury 1 0 4 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Stopped for Traffic East West Vehicle Stopped Vehicle Stopped
City Street SE PETROVITSKY RD 11600 116TH AVE SE 09/21/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead East West North South
State Route 515 5.14 02/23/2020 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - one left turn - one straight Making Left Turn Going Straight Ahead North East North South
State Route 515 5.14 06/17/2020 No Apparent Injury 0 0 3 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - both moving - sideswipe Changing Lanes Going Straight Ahead South North South North
State Route 515 5.14 11/13/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Stopped at Signal or Stop Sign East West North Vehicle Stopped
State Route 515 5.14 05/28/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Truck Tractor From same direction - both going straight - both moving - rear-end Changing Lanes Going Straight Ahead East West East West
State Route 515 5.14 09/23/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign South North Vehicle Stopped Vehicle Stopped
State Route 515 5.14 04/03/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Same direction -- both turning left -- both moving -- sideswipe Making Left Turn Making Left Turn West North West North
State Route 515 5.14 05/11/2019 Possible Injury 1 0 2 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead West East South North
State Route 515 5.14 07/20/2019 Suspected Minor Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Right Turn Stopped for Traffic South East Vehicle Stopped Vehicle Stopped
State Route 515 5.14 08/11/2021 No Apparent Injury 0 0 3 0 0 Passenger Car Passenger Car From same direction - both going straight - one stopped - sideswipe Going Straight Ahead Stopped at Signal or Stop Sign East West Vehicle Stopped Vehicle Stopped
State Route 515 5.14 03/03/2020 Suspected Minor Injury 1 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign Vehicle Stopped Vehicle Stopped
State Route 515 5.14 07/10/2019 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Going Straight Ahead Making Left Turn East West North East
State Route 515 5.14 09/05/2021 Suspected Minor Injury 2 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From opposite direction - one left turn - one straight Going Straight Ahead Making Left Turn North South South West
State Route 515 5.15 02/15/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Right Turn Stopped at Signal or Stop Sign East North South West
State Route 515 5.22 03/31/2019 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Making Right Turn Going Straight Ahead West South North South
State Route 515 5.23 07/25/2020 Suspected Minor Injury 2 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car Entering at angle Making Right Turn Slowing North South West East
State Route 515 5.29 03/16/2021 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 01/21/2019 Possible Injury 2 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 11/07/2021 Unknown 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From opposite direction - all others Making U-Turn Making Left Turn
State Route 515 5.29 01/07/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - rear-end Starting in Traffic Lane Starting in Traffic Lane Vehicle Stopped South Vehicle Stopped South
State Route 515 5.29 07/29/2019 Possible Injury 2 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - all others Making U-Turn Going Straight Ahead South South South North
State Route 515 5.29 03/31/2021 Suspected Serious Injury 1 0 2 0 0 Passenger Car Truck (Flatbad,Van,etc) From opposite direction - one left turn - one straight Making Left Turn Going Straight Ahead North East South North
State Route 515 5.29 06/21/2021 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Making Right Turn Going Straight Ahead East North South North
State Route 515 5.29 10/08/2021 Possible Injury 1 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign Southeast Northwest Southeast Vehicle Stopped
Under 23 U.S. Code § 148 and 23 U.S. Code § 407, safety data, reports, surveys, schedules, lists compiled or collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential crash sites, hazardous roadway conditions, or railway-highway crossings are not subject to discovery or admitted into evidence in a Federal or State court proceeding or considered for other purposes in
any action for damages arising from any occurrence at a location mentioned or addressed in such reports, surveys, schedules, lists, or
WSDOT - Transportation Data, GIS and Modeling Office
Crash Data and Reporting Branch - KM 08/31/2022 1 of 1
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
OFFICER REPORTED CRASHES THAT OCCURRED at OR in the vicinity of THE FOLLOWING INTERSECTIONS IN THE CITY OF RENTON
01/01/2018 - available 2022
JURISDICTION
PRIMARY
TRAFFICWAY
BLOCK
NUMBER
INTERSECTING
TRAFFICWAY
DIST
FROM
REF
POINT
MI
or
FT
COMP
DIR
FROM
REF
POINT
REFERENCE
POINT NAME MILEPOST DATE MOST SEVERE INJURY TYPE
#
I
N
J
#
F
A
T
#
V
E
H
#
P
E
D
S
#
B
I
K
E
S VEHICLE 1 TYPE VEHICLE 2 TYPE FIRST COLLISION TYPE / OBJECT STRUCK VEHICLE 1 ACTION VEHICLE 2 ACTION
VEHICLE 1
COMPASS
DIRECTION FROM
VEHICLE 1
COMPASS
DIRECTION
TO
VEHICLE 2
COMPASS
DIRECTION FROM
VEHICLE 2
COMPASS
DIRECTION TO
City Street 106TH PL SE 18564 SE CARR RD 11/14/2021 Suspected Minor Injury 1 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb Entering at angle Going Straight Ahead Going Straight Ahead East West South North
City Street SE CARR RD 0 106TH PL SE 03/09/2019 Possible Injury 1 0 2 0 0 Motorcycle Pickup,Panel Truck or Vanette under 10,000 lb Vehicle overturned Going Straight Ahead Changing Lanes West East West East
City Street SE CARR RD 0 106TH PL SE 05/08/2020 Possible Injury 4 0 4 0 0 Passenger Car Passenger Car Entering at angle Going Straight Ahead Going Straight Ahead Northeast Southwest Southeast Northwest
City Street SE CARR RD 10622 106TH PL SE 10/06/2020 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car Entering at angle Making Left Turn Going Straight Ahead North East East West
State Route 515 4.88 10/08/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Passenger Car From same direction - both going straight - both moving - rear-end Going Straight Ahead Slowing North South North South
State Route 515 4.88 04/05/2020 No Apparent Injury 0 0 2 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - both moving - rear-end Going Straight Ahead Changing Lanes South North South North
State Route 515 4.88 05/07/2019 No Apparent Injury 0 0 2 0 0 Passenger Car Pickup,Panel Truck or Vanette under 10,000 lb From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign North South Vehicle Stopped Vehicle Stopped
State Route 515 4.88 12/02/2021 Suspected Minor Injury 1 0 1 0 1 Pickup,Panel Truck or Vanette under 10,000 lb Vehicle Strikes Pedalcyclist Going Straight Ahead South North
State Route 515 4.88 02/05/2020 Suspected Serious Injury 3 0 4 0 0 Pickup,Panel Truck or Vanette under 10,000 lb Passenger Car From same direction - both going straight - one stopped - rear-end Going Straight Ahead Stopped at Signal or Stop Sign North South Vehicle Stopped Vehicle Stopped
State Route 515 4.88 01/24/2020 Possible Injury 1 0 1 0 1 Passenger Car Vehicle Strikes Pedalcyclist Going Straight Ahead South North
Under 23 U.S. Code § 148 and 23 U.S. Code § 407, safety data, reports, surveys, schedules, lists compiled or
collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential crash sites,
hazardous roadway conditions, or railway-highway crossings are not subject to discovery or admitted into evidence
in a Federal or State court proceeding or considered for other purposes in any action for damages arising from any
occurrence at a location mentioned or addressed in such reports, surveys, schedules, lists, or data.
WSDOT - Transportation Data, GIS and Modeling Office
Crash Data and Reporting Branch - JB 08/30/2022 1 of 1
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix B
Peak Hour Turning Movement Counts
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
0
4
2
0
8
4
3
22
145001432
2 7
Peak Hour 54 33 4 1 92 0 1
1 0 0 1 6 7Count Total 103 62 4 3 172 0
3 0 00000008:45 AM 17 12 0 0 29
0 0 2 1 0 1
2
8:30 AM 12 9 0 1 22 0 0 0
0 0 0 1 3 2
0 0
8:15 AM 12 9 1 0 22 0 0
1 0 0 1 0 0
0 0 1
8:00 AM 13 10 1 1 25 0
0 0 0 0 0 1
0 0 2
0
7:30 AM 18 7 0 0 25 0 0 0
0 0 0 0 0 0
0 15 0
EB WB NB SB Total East
7:45 AM 11 7 2 0 20
0 0 2
-3%0%HV%0%6%12%0%-
0 1
7:15 AM 9 4 0 1 14 0 0
0 0 0 0 0 0
West North South
7:00 AM 11 4 0
0
71 20 63 0 35 1141014825210
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
3%-0%9%0%6%0%4%10%
Peak
Hour
All 1 16 444
51 0 130 33 107 0
0 0 1 0 92 03120202
14 1,576 0
HV 0 1 53 0 0
Count Total 1 33 884 86 0 30 1,596 58 25 38 3,072 0
442 1,57631205660919315012
6 1 9 371 1,542
8:45 AM 0 9 153 19
7 0 13 4 15 0
383 1,576
8:30 AM 0 6 128 11 0 1 170
5 21 0 14 2 2041885022
8 5 5 380 1,569
8:15 AM 1 5 99 15
4 0 17 9 15 0
408 1,496
8:00 AM 0 1 123 8 0 5 180
4 10 0 5 1 2042327019
8 3 5 405 0
7:45 AM 0 5 109 10
5 0 13 2 17 0
376 0
7:30 AM 0 5 113 8 0 1 225
5 15 0 6 3 5042215019
6 4 4 307 0
7:15 AM 0 1 83 9
3 0 15 1 2 07:00 AM 0 1 76 6 0 2 187
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 1.7%0.83
TOTAL 5.8%0.97
TH RT
WB 3.8%0.88
NB 2.6%0.80
Peak Hour: 7:30 AM 8:30 AM
HV %:PHF
EB 10.8%0.95
0
0
0
0 0 0
000
0
1
0
2
5
3 4
N
106th Pl SE
SE Carr Rd
SE Carr Rd
Dr
i
v
e
w
a
y
SE Carr Rd
10
6
t
h
P
l
S
E
1,576TEV:
0.97PHF:
14 11 35
60 57
0
21
825
14
860
5420
632071
15
4
66
0
41
444
16
502
911 1
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 1 0
000 0 1 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 1 0
0 0 0
0
THLT
1000000
1 00000
0 0
0 0
Peak Hour
0 0Count Total
0
100000000
0 1
8:45 AM
0 0 0 0
1
8:30 AM
0000000
1 1
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
92 0
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One Hour
0 2 0 0 1 00031202
RTTHLT RTTHLTRT
0 1 2 172 0
Peak Hour 0 1 53 0
5 0 2 0 2 0Count Total 0 1 100 2 0 0 57
29 98000000009300
0 0 1 22 89
8:45 AM 0 0 16 1
0 0 0 0 0 0
22 92
8:30 AM 0 0 12 0 0 0 9
0 1 0 0 0 0008100
0 1 0 25 84
8:15 AM 0 0 12 0
1 0 0 0 1 0
20 74
8:00 AM 0 0 13 0 0 0 9
0 0 0 0 0 0007002
0 0 0 25 0
7:45 AM 0 0 11 0
0 0 0 0 0 0
14 0
7:30 AM 0 1 17 0 0 0 7
0 0 0 0 0 1004000
0 0 0 15 0
7:15 AM 0 0 8 1
0 0 0 0 0 0
TH RT
7:00 AM 0 0 11 0 0 0 4
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
4
8
7
6
8
4
5
4
46
218000850
3 13
Peak Hour 13 17 4 2 36 0 0
0 0 0 0 14 16Count Total 25 33 7 3 68 0
0 0 20000025:45 PM 2 6 1 1 10
0 0 3 1 0 1
2
5:30 PM 4 5 2 0 11 0 0 0
0 0 0 2 0 0
0 3
5:15 PM 3 4 0 0 7 0 0
0 0 0 0 1 4
4 0 1
5:00 PM 4 2 1 1 8 0
0 0 0 0 0 1
4 0 2
0
4:30 PM 4 4 1 0 9 0 0 0
0 0 0 3 2 3
1 11 0
EB WB NB SB Total East
4:45 PM 1 3 0 0 4
0 0 1
-4%0%HV%-0%1%1%-
0 2
4:15 PM 3 3 2 0 8 0 0
0 0 0 0 1 1
West North South
4:00 PM 4 6 0
0
77 34 117 0 51 61168060580310
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
1%-0%2%3%2%0%3%3%
Peak
Hour
All 0 22 952
57 0 165 72 227 0
0 0 1 1 36 01610301
33 2,186 0
HV 0 0 11 2 0
Count Total 1 48 1,837 297 0 103 1,118 99 124 65 4,213 0
567 2,1868300916602115211019
13 25 4 538 2,102
5:45 PM 0 6 248 41
7 0 17 13 28 0
536 2,092
5:30 PM 0 4 236 35 0 9 147
7 28 0 18 10 80131365020
11 10 15 545 2,067
5:15 PM 0 7 239 45
8 0 21 6 31 0
483 2,027
5:00 PM 0 5 229 47 0 17 145
9 33 0 10 21 5091377026
8 8 6 528 0
4:45 PM 0 7 182 37
7 0 19 7 26 0
511 0
4:30 PM 0 8 256 33 0 11 139
13 27 0 13 18 110101238029
17 16 10 505 0
4:15 PM 0 5 229 25
4 0 14 9 24 04:00 PM 1 6 218 34 0 13 139
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 1.4%0.86
TOTAL 1.6%0.96
TH RT
WB 2.5%0.91
NB 1.8%0.98
Peak Hour: 5:00 PM 6:00 PM
HV %:PHF
EB 1.1%0.97
0
0
0
0 0 0
000
0
0
0
0
8
5 8
N
106th Pl SE
SE Carr Rd
SE Carr Rd
Dr
i
v
e
w
a
y
SE Carr Rd
10
6
t
h
P
l
S
E
2,186TEV:
0.96PHF:
33 61 51
14
5 87
0
31
580
60
671
1,1200
11
73477
22
8
28
9
0
168
952
22
1,142
690 0
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
36 0
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One Hour
0 1 0 0 1 10016103
RTTHLT RTTHLTRT
0 2 1 68 0
Peak Hour 0 0 11 2
1 0 5 0 2 0Count Total 0 0 23 2 0 1 31
10 36000010005101
0 0 0 11 30
5:45 PM 0 0 1 1
0 0 1 0 1 0
7 28
5:30 PM 0 0 4 0 0 0 5
0 0 0 0 0 0004000
0 0 1 8 29
5:15 PM 0 0 2 1
0 0 1 0 0 0
4 32
5:00 PM 0 0 4 0 0 0 2
0 0 0 0 0 0003000
0 0 0 9 0
4:45 PM 0 0 1 0
0 0 1 0 0 0
8 0
4:30 PM 0 0 4 0 0 0 4
0 1 0 0 0 0003001
0 1 0 11 0
4:15 PM 0 0 3 0
0 0 0 0 0 0
TH RT
4:00 PM 0 0 4 0 0 1 5
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Carr Rd Driveway 106th Pl SE 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
2
0
1
0
0
0
0
2
5
30000012
2 0
Peak Hr 0 9 41 24 74 0 0
0 0 0 0 0 3Count Total 0 18 100 33 151 0
2 0 00000008:45 AM 0 3 19 4 26
0 0 0 0 0 0
0
8:30 AM 0 3 18 1 22 0 0 0
0 0 0 0 0 0
0 0
8:15 AM 0 2 11 2 15 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 0 1 11 2 14 0
0 0 0 0 0 0
0 1 0
0
7:30 AM 0 1 8 5 14 0 0 0
0 0 0 0 0 0
8 26 0
EB WB NB SB Total East
7:45 AM 0 5 7 5 17
0 0 0
--2%HV%-----
1 0
7:15 AM 0 1 10 6 17 0 0
0 0 0 0 0 1
West North South
7:00 AM 0 2 16
9
0 1,325 275 0 32 340002490530
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
4%-0%7%-3%4%-0%
Peak
Hour
All 0 0 0
86 1 0 2,536 541 0
0 0 24 0 74 000002912
0 2,274 0
HV 0 0 0 0 0
Count Total 0 0 0 0 0 451 0 61 765 0 4,441 0
560 2,1672766901313400620600
5 95 0 529 2,185
8:45 AM 0 0 0 0
12 0 0 305 53 0
560 2,246
8:30 AM 0 0 0 0 0 59 0
324 73 0 8 104 00420900
3 92 0 518 2,258
8:15 AM 0 0 0 0
6 1 0 306 71 0
578 2,274
8:00 AM 0 0 0 0 0 39 0
339 51 0 4 100 00750900
11 92 0 590 0
7:45 AM 0 0 0 0
21 0 0 323 82 0
572 0
7:30 AM 0 0 0 0 0 61 0
321 78 0 9 85 006301600
8 63 0 534 0
7:15 AM 0 0 0 0
7 0 0 342 64 07:00 AM 0 0 0 0 0 50 0
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
SB 6.5%0.89
TOTAL 3.3%0.96
TH RTUTLTTHRTUTLT
WB 3.0%0.90
NB 2.6%0.99
Peak Hour: 7:00 AM 8:00 AM
HV %:PHF
EB --
Date: 09/01/2022
Peak Hour Count Period: 7:00 AM 9:00 AMN
SR 515 (Benson Dr S)
Benson Rd S
Benson Rd S
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
2,274TEV:
0.96PHF:
34
0
32
37
2
1,
3
7
8
0
53
249 302
3070
27
5
1,
3
2
5
1,
6
0
0
58
9
0
0 0
00
0
0
2
0
1 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0Count Total 0 0 0 0 0 0 0 0
0000000
0 0
8:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
8:30 AM 0 0 0 0 0 0
0 0 0 0 0 08:15 AM 0 0 0 0 0
0 0 0 0 0 0
0
8:00 AM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
7:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
7:30 AM 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0
7:15 AM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
7:00 AM 0 0 0 0
Westbound Northbound Southbound
LT TH RT LT TH RT LT
74 0
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastbound
29 12 0 0 24 0090000
0 33 0 151 0
Peak Hour 0 0 0 0
0 0 0 77 23 0Count Total 0 0 0 0 0 18 0
26 771540040030000
0 1 0 22 68
8:45 AM 0 0 0 0
0 0 0 17 1 0
15 60
8:30 AM 0 0 0 0 0 3 0
9 2 0 0 2 0020000
0 2 0 14 62
8:15 AM 0 0 0 0
0 0 0 7 4 0
17 74
8:00 AM 0 0 0 0 0 1 0
7 0 0 0 5 0050000
0 5 0 14 0
7:45 AM 0 0 0 0
0 0 0 4 4 0
17 0
7:30 AM 0 0 0 0 0 1 0
7 3 0 0 6 0010000
0 8 0 26 0
7:15 AM 0 0 0 0
0 0 0 11 5 0
TH RT
7:00 AM 0 0 0 0 0 2 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
1
0
0
2
0
3
1
7
30000003
5 0
Peak Hr 0 2 10 14 26 0 0
0 0 0 0 1 1Count Total 0 4 20 20 44 0
1 0 00000005:45 PM 0 0 2 3 5
0 0 1 0 2 0
0
5:30 PM 0 1 1 1 3 0 0 0
0 0 0 0 0 0
2 0
5:15 PM 0 1 2 1 4 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 0 0 3 1 4 0
0 0 0 0 0 0
0 0 0
0
4:30 PM 0 1 4 5 10 0 0 0
0 0 0 0 0 1
1 6 0
EB WB NB SB Total East
4:45 PM 0 1 0 4 5
0 0 0
--1%HV%-----
0 0
4:15 PM 0 0 3 4 7 0 0
0 0 0 0 0 0
West North South
4:00 PM 0 0 5
2
0 629 283 0 49 1,088002720190
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
2%-2%1%-1%1%-0%
Peak
Hour
All 0 0 0
39 0 0 1,250 519 0
0 1 13 0 26 0000055
0 2,340 0
HV 0 0 0 0 0
Count Total 0 0 0 0 1 494 0 86 2,081 0 4,470 0
524 2,131160560823601590400
13 238 0 518 2,194
5:45 PM 0 0 0 0
4 0 0 154 63 0
539 2,289
5:30 PM 0 0 0 0 0 46 0
166 61 0 6 244 00570500
11 244 0 550 2,340
5:15 PM 0 0 0 0
7 0 0 140 65 0
587 2,339
5:00 PM 0 0 0 0 0 83 0
169 63 0 10 285 00540600
15 275 0 613 0
4:45 PM 0 0 0 0
1 0 0 169 80 0
590 0
4:30 PM 0 0 0 0 0 73 0
151 75 0 13 284 00620500
10 275 0 549 0
4:15 PM 0 0 0 0
7 0 0 141 56 04:00 PM 0 0 0 0 0 60 0
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
SB 1.2%0.96
TOTAL 1.1%0.95
TH RTUTLTTHRTUTLT
WB 0.7%0.81
NB 1.1%0.92
Peak Hour: 4:15 PM 5:15 PM
HV %:PHF
EB --
Date: 09/01/2022
Peak Hour Count Period: 4:00 PM 6:00 PMN
SR 515 (Benson Dr S)
Benson Rd S
Benson Rd S
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
2,340TEV:
0.95PHF:
1,
0
8
8
49
1,
1
3
7
64
8
0
19
272 291
3320
28
3
62
9
91
2
1,
3
6
0
0
0 0
00
0
0
3
0
0 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0Count Total 0 0 0 0 0 0 0 0
0000000
0 0
5:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
5:30 PM 0 0 0 0 0 0
0 0 0 0 0 05:15 PM 0 0 0 0 0
0 0 0 0 0 0
0
5:00 PM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
4:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
4:30 PM 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0
4:15 PM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
4:00 PM 0 0 0 0
Westbound Northbound Southbound
LT TH RT LT TH RT LT
26 0
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastbound
5 5 0 1 13 0020000
1 19 0 44 0
Peak Hour 0 0 0 0
0 0 0 13 7 0Count Total 0 0 0 0 0 4 0
5 16200030000000
0 1 0 3 16
5:45 PM 0 0 0 0
0 0 0 0 1 0
4 23
5:30 PM 0 0 0 0 0 1 0
2 0 0 0 1 0010000
0 1 0 4 26
5:15 PM 0 0 0 0
0 0 0 3 0 0
5 28
5:00 PM 0 0 0 0 0 0 0
0 0 0 0 4 0010000
0 5 0 10 0
4:45 PM 0 0 0 0
0 0 0 2 2 0
7 0
4:30 PM 0 0 0 0 0 1 0
0 3 0 1 3 0000000
0 1 0 6 0
4:15 PM 0 0 0 0
0 0 0 4 1 0
TH RT
4:00 PM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
0 Benson Rd S SR 515 (Benson Dr S)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
4
4
2
1
2
0
7
10
30
54000010
6 13
Peak Hour 60 30 39 30 159 0 0
0 0 0 0 5 6Count Total 109 54 86 51 300 0
2 2 30000038:45 AM 20 8 10 6 44
0 0 2 1 1 3
0
8:30 AM 11 9 18 9 47 0 0 0
0 0 0 0 0 0
0 1
8:15 AM 17 9 8 12 46 0 0
0 0 0 0 0 1
0 0 1
8:00 AM 13 11 14 8 46 0
0 0 0 0 0 0
0 0 2
2
7:30 AM 17 6 10 4 37 0 0 0
0 0 0 0 1 1
5 25 0
EB WB NB SB Total East
7:45 AM 13 4 7 6 30
0 0 0
0%5%3%HV%-10%11%16%-
2 1
7:15 AM 9 4 11 1 25 0 0
0 0 0 0 0 1
West North South
7:00 AM 9 3 8
3
166 1,026 51 0 126 2834301116722946
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
4%-6%4%23%5%3%3%2%
Peak
Hour
All 0 167 331
545 15 340 2,029 112 0
0 7 10 13 159 020708292
56 3,332 0
HV 0 16 37 7 0
Count Total 0 309 664 77 0 212 1,311 241 535 108 6,498 0
833 3,2352012203479904217951746
33 74 18 793 3,271
8:45 AM 0 34 115 14
67 1 55 234 18 0
826 3,332
8:30 AM 0 38 95 11 0 28 121
261 16 0 38 79 1503214356345
33 63 16 783 3,299
8:15 AM 0 41 87 10
57 0 38 246 15 0
869 3,263
8:00 AM 0 45 89 13 0 21 147
251 10 0 27 86 1403019490135
28 55 11 854 0
7:45 AM 0 41 82 8
91 2 48 268 10 0
793 0
7:30 AM 0 40 73 12 0 28 188
263 9 0 20 56 1501718475035
28 43 10 747 0
7:15 AM 0 41 75 3
58 1 38 305 12 07:00 AM 0 29 48 6 0 14 155
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 6.5%0.88
TOTAL 4.8%0.96
TH RT
WB 2.8%0.86
NB 3.1%0.95
Peak Hour: 7:30 AM 8:30 AM
HV %:PHF
EB 11.1%0.92
0
0
0
0 0 0
000
0
0
0
0
4
1 0
N
SR 515 (108th Ave SE)
SE Carr Rd
SE Petrovitsky
Rd
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE Carr Rd
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
3,332TEV:
0.96PHF:
56 28
3
12
6
46
5
1,
4
8
7
0
294
672
111
1,077
5080
51
1,
0
2
6
16
6
1,
2
4
9
44
3
6
43
331
167
541
894 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
159 0
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One Hour
29 2 0 7 10 130320708
RTTHLT RTTHLTRT
13 19 19 300 0
Peak Hour 0 16 37 7
14 0 21 52 13 0Count Total 0 27 66 16 0 6 34
44 183320132016105
2 4 3 47 169
8:45 AM 0 6 11 3
3 0 4 9 5 0
46 159
8:30 AM 0 1 7 3 0 2 4
7 0 0 0 3 9015301
3 5 0 46 138
8:15 AM 0 6 10 1
2 0 3 9 2 0
30 117
8:00 AM 0 1 10 2 0 1 8
5 0 0 2 2 2012102
2 0 2 37 0
7:45 AM 0 5 6 2
1 0 2 8 0 0
25 0
7:30 AM 0 4 11 2 0 0 5
6 2 0 1 0 0002203
2 2 1 25 0
7:15 AM 0 3 5 1
1 0 1 5 2 0
TH RT
7:00 AM 0 1 6 2 0 0 2
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
18
23
13
3
8
4
9
15
93
36130111184
11 42
Peak Hour 14 20 11 11 56 0 0
0 0 1 1 26 14Count Total 28 37 29 20 114 0
4 2 60000035:45 PM 2 7 3 0 12
1 1 4 2 0 3
1
5:30 PM 5 6 5 4 20 0 0 0
0 0 0 0 2 1
1 3
5:15 PM 2 4 2 5 13 0 0
0 0 0 0 4 0
0 0 2
5:00 PM 5 3 1 2 11 0
0 0 0 0 0 1
1 5 4
12
4:30 PM 5 3 5 2 15 0 0 0
0 0 0 7 3 1
1 19 0
EB WB NB SB Total East
4:45 PM 2 3 3 4 12
0 0 3
0%3%1%HV%-1%1%7%-
1 11
4:15 PM 3 2 5 2 12 0 0
0 0 0 0 4 2
West North South
4:00 PM 4 9 5
3
169 530 140 0 277 91172013749718119
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
0%-0%1%0%1%2%3%2%
Peak
Hour
All 0 132 1,020
356 38 336 1,102 287 0
0 1 10 0 56 01430560
32 4,117 0
HV 0 1 8 5 0
Count Total 2 300 1,843 180 0 303 935 554 1,779 76 8,091 0
1,031 4,11712429069203803014450442
72 250 7 1,039 4,040
5:45 PM 0 25 282 21
40 5 37 141 39 0
1,014 4,006
5:30 PM 0 26 257 17 0 28 120
139 41 0 70 206 704011537440
66 252 10 1,033 3,985
5:15 PM 0 44 258 13
54 6 50 126 31 0
954 3,974
5:00 PM 0 37 223 21 0 39 118
148 43 0 53 201 804311742950
78 214 11 1,005 0
4:45 PM 0 36 176 28
52 4 40 138 20 0
993 0
4:30 PM 1 48 235 24 0 37 103
158 42 0 75 229 110399737047
71 224 14 1,022 0
4:15 PM 1 37 194 26
44 6 30 128 42 04:00 PM 0 47 218 30 0 47 121
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 0.9%0.93
TOTAL 1.4%0.99
TH RT
WB 2.5%0.91
NB 1.3%0.96
Peak Hour: 5:00 PM 6:00 PM
HV %:PHF
EB 1.1%0.93
0
0
0
0 0 1
000
0
0
0
4
13
8 11
N
SR 515 (108th Ave SE)
SE Carr Rd
SE Petrovitsky
Rd
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE Carr Rd
SR
5
1
5
(B
e
n
s
o
n
D
r
S
)
4,117TEV:
0.99PHF:
32 91
1
27
7
1,
2
2
0
84
3
0
181
497
137
815
1,4370
14
0
53
0
16
9
85
8
1,
1
3
9
19
72
1,020
132
1,224
698 0
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
1010000
1 00000
0 0
0 0
Peak Hour
1 0Count Total
0
100000000
1 1
5:45 PM
0 0 0 1
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
56 0
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One Hour
6 0 0 1 10 00314305
RTTHLT RTTHLTRT
2 18 0 114 0
Peak Hour 0 1 8 5
5 0 12 17 0 0Count Total 0 1 17 10 0 5 27
12 56100000014202
1 3 0 20 56
5:45 PM 0 0 1 1
0 0 1 4 0 0
13 51
5:30 PM 0 1 2 2 0 1 5
1 0 0 0 5 0003101
0 2 0 11 50
5:15 PM 0 0 1 1
0 0 1 0 0 0
12 58
5:00 PM 0 0 4 1 0 1 2
2 0 0 0 4 0002101
0 2 0 15 0
4:45 PM 0 0 1 1
1 0 3 2 0 0
12 0
4:30 PM 0 0 4 1 0 0 2
3 0 0 1 1 0011002
0 1 0 19 0
4:15 PM 0 0 2 1
0 0 1 4 0 0
TH RT
4:00 PM 0 0 2 2 0 1 8
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE Carr Rd SE Petrovitsky Rd SR 515 (108th Ave SE)SR 515 (Benson Dr S)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
2
5
2
0
5
7
0
22
143000713
3 6
Peak Hour 4 2 48 25 79 0 0
0 1 0 1 9 4Count Total 8 3 86 37 134 0
0 0 00010108:45 AM 1 1 8 7 17
0 0 3 1 2 1
2
8:30 AM 1 0 13 8 22 0 0 0
0 0 0 2 0 1
0 0
8:15 AM 3 2 10 4 19 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 0 0 17 7 24 0
0 0 0 0 0 2
2 0 2
1
7:30 AM 2 0 12 1 15 0 0 0
0 0 0 0 1 0
3 13 0
EB WB NB SB Total East
7:45 AM 0 0 8 6 14
0 0 1
-1%4%HV%-0%0%6%-
0 0
7:15 AM 1 0 8 1 10 0 0
0 0 0 0 1 0
West North South
7:00 AM 0 0 10
2
101 1,166 7 41 3 3656805050
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
29%2%0%6%6%4%40%-0%
Peak
Hour
All 0 52 1
10 0 192 2,410 12 74
1 0 23 1 79 00001452
17 1,831 0
HV 0 0 0 4 0
Count Total 0 97 4 110 0 5 0 8 636 27 3,585 0
430 1,77125612019380002019
0 102 3 464 1,831
8:45 AM 0 16 1 13
2 0 20 279 1 16
435 1,815
8:30 AM 0 17 0 24 0 0 0
270 3 8 0 84 60400024
1 71 5 442 1,822
8:15 AM 0 16 0 20
1 0 19 309 1 8
490 1,814
8:00 AM 0 12 1 13 0 1 0
308 2 9 2 108 30002038
2 69 1 448 0
7:45 AM 0 7 0 11
1 0 27 318 3 6
442 0
7:30 AM 0 11 1 9 0 0 0
324 0 3 1 65 00001027
1 44 1 434 0
7:15 AM 0 10 1 10
1 0 18 346 1 47:00 AM 0 8 0 10 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 5.9%0.87
TOTAL 4.3%0.93
TH RT
WB 20.0%0.63
NB 3.8%0.92
Peak Hour: 7:45 AM 8:45 AM
HV %:PHF
EB 3.3%0.74
0
0
0
0 0 0
000
0
0
0
3
3
1 7
N
SR 515 (108th Ave SE)
SE 180th St
Driveway
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE 180th St
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
1,831TEV:
0.93PHF:
17 36
5
3
42
6
1,
2
6
4
41
5
0
5
10
110
7
1,
1
6
6
10
1
1,
2
7
4
43
8
0
68
1
52
121
118 0
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
1 00010
0 0
0 0
Peak Hour
0 0Count Total
0
110010000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
79 0
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One Hour
45 2 1 0 23 1020001
RTTHLT RTTHLTRT
0 33 3 134 0
Peak Hour 0 0 0 4
1 0 3 81 2 1Count Total 0 1 0 7 0 2 0
17 82700061000101
0 8 0 22 79
8:45 AM 0 0 0 1
0 0 1 12 0 0
19 72
8:30 AM 0 0 0 1 0 0 0
8 2 1 0 2 1020000
0 7 0 24 63
8:15 AM 0 0 0 3
0 0 0 17 0 0
14 52
8:00 AM 0 0 0 0 0 0 0
8 0 0 0 6 0000000
0 1 0 15 0
7:45 AM 0 0 0 0
0 0 1 11 0 0
10 0
7:30 AM 0 1 0 1 0 0 0
8 0 0 0 1 0000000
0 2 1 13 0
7:15 AM 0 0 0 1
0 0 0 10 0 0
TH RT
7:00 AM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
1
1
0
1
0
2
2
2
9
31000101
1 3
Peak Hour 2 2 9 14 27 0 0
0 0 0 0 4 1Count Total 2 3 23 27 55 0
1 0 10000005:45 PM 0 0 2 2 4
0 0 2 0 0 0
1
5:30 PM 0 1 3 5 9 0 0 0
0 0 0 0 0 1
0 0
5:15 PM 0 0 1 3 4 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 1 0 2 3 6 0
0 0 0 0 0 1
0 0 0
1
4:30 PM 1 0 5 4 10 0 0 0
0 0 0 0 0 0
4 9 0
EB WB NB SB Total East
4:45 PM 0 2 1 4 7
0 0 0
-0%1%HV%-0%-1%-
0 0
4:15 PM 0 0 4 2 6 0 0
0 0 0 0 1 0
West North South
4:00 PM 0 0 5
0
91 756 1 96 2 1,03124207180
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
100%0%0%1%0%1%0%0%25%
Peak
Hour
All 0 147 0
11 0 173 1,523 1 196
0 0 14 0 27 0020081
32 2,414 0
HV 0 0 0 2 0
Count Total 0 272 0 479 0 7 1 5 2,083 58 4,809 0
607 2,396193025127160000025
2 242 3 578 2,366
5:45 PM 0 33 0 53
2 0 23 177 0 29
616 2,414
5:30 PM 0 32 0 68 0 0 0
183 0 25 0 272 70402018
0 250 5 595 2,358
5:15 PM 0 33 0 72
4 0 27 195 0 23
577 2,413
5:00 PM 0 28 0 61 0 1 1
178 0 25 2 244 100002021
0 265 10 626 0
4:45 PM 0 47 0 48
0 0 25 200 1 23
560 0
4:30 PM 0 39 0 61 0 2 0
201 0 17 0 224 70001019
0 315 10 650 0
4:15 PM 0 34 0 57
0 0 15 196 0 294:00 PM 0 26 0 59 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
TotalUTLTTHRT
Date: 08/30/2022
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 1.2%0.95
TOTAL 1.1%0.96
TH RT
WB 12.5%0.67
NB 1.1%0.94
Peak Hour: 4:30 PM 5:30 PM
HV %:PHF
EB 0.5%0.93
0
0
0
0 0 0
000
0
0
0
1
1
0 1
N
SR 515 (108th Ave SE)
SE 180th St
Driveway
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
SE 180th St
SR
5
1
5
(
1
0
8
t
h
Av
e
S
E
)
2,414TEV:
0.96PHF:
32 1,
0
3
1
2
1,
1
6
1
1,
0
0
7
96
8
1
7
16
30
1
75
691
84
8
1,
2
8
0
0
242
0
147
389
124 0
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DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
27 0
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One Hour
8 1 0 0 14 0000200
RTTHLT RTTHLTRT
2 25 0 55 0
Peak Hour 0 0 0 2
3 0 0 22 1 0Count Total 0 0 0 2 0 0 0
4 23200020000000
2 3 0 9 26
5:45 PM 0 0 0 0
1 0 0 3 0 0
4 27
5:30 PM 0 0 0 0 0 0 0
1 0 0 0 3 0000000
0 3 0 6 29
5:15 PM 0 0 0 0
0 0 0 2 0 0
7 32
5:00 PM 0 0 0 1 0 0 0
1 0 0 0 4 0000200
0 4 0 10 0
4:45 PM 0 0 0 0
0 0 0 4 1 0
6 0
4:30 PM 0 0 0 1 0 0 0
4 0 0 0 2 0000000
0 4 0 9 0
4:15 PM 0 0 0 0
0 0 0 5 0 0
TH RT
4:00 PM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
SE 180th St Driveway SR 515 (108th Ave SE)SR 515 (108th Ave SE)15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
project.manager.wa@idaxdata.com
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix C
Level of Service (LOS) Calculations
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Existing 2022 AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 444 41 14 825 21 71 20 63 35 11 14
Future Volume (vph) 17 444 41 14 825 21 71 20 63 35 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 10% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 44.5
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 444 41 14 825 21 71 20 63 35 11 14
Future Volume (veh/h) 17 444 41 14 825 21 71 20 63 35 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 1986 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 458 42 14 851 22 73 21 65 36 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 10 3 0 3 0 9 0
Cap, veh/h 36 971 89 37 1358 35 446 79 243 373 117 149
Arrive On Green 0.02 0.35 0.35 0.02 0.35 0.35 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2770 253 2034 3927 102 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 247 253 14 427 446 73 0 86 36 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1527 2034 1972 2057 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.6 4.6 0.2 6.4 6.4 1.6 0.0 1.5 0.9 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.6 4.6 0.2 6.4 6.4 2.1 0.0 1.5 2.4 0.0 0.5
Prop In Lane 1.00 0.17 1.00 0.05 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 524 535 37 682 711 446 0 322 373 0 267
V/C Ratio(X) 0.50 0.47 0.47 0.38 0.63 0.63 0.16 0.00 0.27 0.10 0.00 0.09
Avail Cap(c_a), veh/h 846 5380 5492 1086 7092 7397 712 0 646 598 0 535
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.2 9.0 9.0 17.3 9.7 9.7 13.0 0.0 12.5 13.6 0.0 12.1
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.3 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.0 1.0 0.1 1.9 2.0 0.4 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.0 9.2 9.2 19.6 10.1 10.1 13.0 0.0 12.7 13.6 0.0 12.2
LnGrp LOS C A A B B B B A B B A B
Approach Vol, veh/h 518 887 159 61
Approach Delay, s/veh 9.7 10.2 12.9 13.0
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 18.3 11.5 5.6 18.5 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 8.4 4.1 2.2 6.6 4.4
Green Ext Time (p_c), s 0.0 3.7 0.3 0.0 2.0 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 249 53 1325 275 32 340
Future Volume (vph) 249 53 1325 275 32 340
Satd. Flow (prot) 3403 0 3504 0 1769 3306
Flt Permitted 0.960 0.095
Satd. Flow (perm) 3403 0 3504 0 177 3306
Satd. Flow (RTOR) 12 54
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 4% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 314 0 1666 0 33 354
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 12.5 47.2 48.2 48.2
Actuated g/C Ratio 0.17 0.66 0.67 0.67
v/c Ratio 0.52 0.72 0.28 0.16
Control Delay 30.5 10.1 12.7 4.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 30.5 10.1 12.7 4.8
LOS C B B A
Approach Delay 30.5 10.1 5.5
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 71.7
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.72
Intersection Signal Delay: 12.0 Intersection LOS: B
Intersection Capacity Utilization 64.5% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Future Volume (vph) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 10% 11% 16% 3% 3% 2% 0% 5% 3% 4% 6% 4% 23%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 162
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Future Volume (veh/h) 167 331 43 111 672 294 6 166 1026 51 126 283 56
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1540 1525 1451 1973 1973 1988 1826 1856 1841 1811 1841 1559
Adj Flow Rate, veh/h 174 345 45 116 700 306 173 1069 53 131 295 58
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 10 11 16 3 3 2 5 3 4 6 4 23
Cap, veh/h 193 948 123 140 797 348 224 1179 58 176 967 188
Arrive On Green 0.13 0.37 0.37 0.07 0.31 0.31 0.07 0.34 0.34 0.05 0.33 0.33
Sat Flow, veh/h 1466 2579 334 1879 2535 1108 3374 3418 169 3346 2920 566
Grp Volume(v), veh/h 174 193 197 116 518 488 173 551 571 131 175 178
Grp Sat Flow(s),veh/h/ln 1466 1449 1464 1879 1874 1769 1687 1763 1825 1673 1749 1738
Q Serve(g_s), s 16.8 13.9 14.2 8.7 37.6 37.6 7.2 42.8 42.8 5.5 10.7 11.0
Cycle Q Clear(g_c), s 16.8 13.9 14.2 8.7 37.6 37.6 7.2 42.8 42.8 5.5 10.7 11.0
Prop In Lane 1.00 0.23 1.00 0.63 1.00 0.09 1.00 0.33
Lane Grp Cap(c), veh/h 193 533 538 140 589 556 224 608 629 176 579 576
V/C Ratio(X) 0.90 0.36 0.37 0.83 0.88 0.88 0.77 0.91 0.91 0.74 0.30 0.31
Avail Cap(c_a), veh/h 240 650 657 235 796 751 1092 706 730 268 579 576
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 61.5 33.1 33.2 65.6 46.7 46.7 66.0 44.8 44.9 67.1 35.7 35.8
Incr Delay (d2), s/veh 26.7 0.3 0.3 4.7 8.0 8.4 2.1 13.7 13.4 2.3 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 7.7 5.0 5.1 4.4 18.6 17.7 3.2 20.6 21.3 2.4 4.6 4.7
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 88.2 33.4 33.5 70.2 54.6 55.0 68.1 58.5 58.2 69.4 35.9 36.0
LnGrp LOS F C C E D E E E E E D D
Approach Vol, veh/h 564 1122 1295 484
Approach Delay, s/veh 50.3 56.4 59.7 45.0
Approach LOS D E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 13.1 55.0 16.7 58.8 15.0 53.1 24.4 51.2
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 7.5 44.8 10.7 16.2 9.2 13.0 18.8 39.6
Green Ext Time (p_c), s 0.1 4.7 0.1 1.9 0.3 1.1 0.1 5.6
Intersection Summary
HCM 6th Ctrl Delay 55.1
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Future Volume (vph) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 6% 40% 0% 0% 1% 4% 29% 2% 0% 6% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 72
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Future Volume (veh/h) 52 1 68 5 0 5 101 1166 7 41 3 365 17
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1717 1307 1900 1900 1885 1841 1470 1900 1811 1811
Adj Flow Rate, veh/h 56 1 73 5 0 5 109 1254 8 3 392 18
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 6 40 0 0 1 4 29 0 6 6
Cap, veh/h 257 3 127 139 26 67 141 2134 14 7 1756 80
Arrive On Green 0.09 0.09 0.09 0.09 0.00 0.09 0.08 0.60 0.60 0.00 0.52 0.52
Sat Flow, veh/h 1443 39 1441 469 290 759 1795 3562 23 1810 3349 153
Grp Volume(v), veh/h 57 0 73 10 0 0 109 615 647 3 201 209
Grp Sat Flow(s),veh/h/ln 1482 0 1441 1517 0 0 1795 1749 1836 1810 1721 1782
Q Serve(g_s), s 0.0 0.0 2.7 0.0 0.0 0.0 3.3 12.0 12.0 0.1 3.5 3.5
Cycle Q Clear(g_c), s 1.7 0.0 2.7 1.7 0.0 0.0 3.3 12.0 12.0 0.1 3.5 3.5
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 261 0 127 232 0 0 141 1047 1100 7 902 934
V/C Ratio(X) 0.22 0.00 0.57 0.04 0.00 0.00 0.77 0.59 0.59 0.41 0.22 0.22
Avail Cap(c_a), veh/h 498 0 379 473 0 0 277 4332 4550 279 4263 4415
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 23.7 0.0 24.1 23.0 0.0 0.0 24.9 6.8 6.8 27.4 7.1 7.1
Incr Delay (d2), s/veh 0.4 0.0 4.0 0.1 0.0 0.0 8.6 0.8 0.7 32.3 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.7 0.0 1.0 0.1 0.0 0.0 1.6 2.9 3.0 0.1 0.9 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 24.1 0.0 28.1 23.1 0.0 0.0 33.5 7.6 7.6 59.7 7.2 7.2
LnGrp LOS C A C C A A C A A E A A
Approach Vol, veh/h 130 10 1371 413
Approach Delay, s/veh 26.4 23.1 9.6 7.6
Approach LOS C C A A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 38.5 10.9 9.8 34.4 10.9
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 14.0 4.7 5.3 5.5 3.7
Green Ext Time (p_c), s 0.0 19.0 0.3 0.1 3.7 0.0
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Existing 2022 PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 22 952 168 60 580 31 77 34 117 51 61 33
Future Volume (vph) 22 952 168 60 580 31 77 34 117 51 61 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 3% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 63.3
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 22 952 168 60 580 31 77 34 117 51 61 33
Future Volume (veh/h) 22 952 168 60 580 31 77 34 117 51 61 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2091 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 23 992 175 62 604 32 80 35 122 53 64 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 3 4 0 1 0 2 3
Cap, veh/h 45 1258 222 115 1835 97 325 75 263 265 203 108
Arrive On Green 0.03 0.45 0.45 0.06 0.48 0.48 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2801 494 2034 3836 203 1345 391 1362 1143 1054 560
Grp Volume(v), veh/h 23 584 583 62 312 324 80 0 157 53 0 98
Grp Sat Flow(s),veh/h/ln 1669 1651 1644 2034 1986 2052 1345 0 1753 1143 0 1614
Q Serve(g_s), s 0.7 16.0 16.1 1.6 5.2 5.2 2.9 0.0 4.2 2.3 0.0 2.8
Cycle Q Clear(g_c), s 0.7 16.0 16.1 1.6 5.2 5.2 5.7 0.0 4.2 6.5 0.0 2.8
Prop In Lane 1.00 0.30 1.00 0.10 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 45 741 738 115 950 982 325 0 338 265 0 311
V/C Ratio(X) 0.51 0.79 0.79 0.54 0.33 0.33 0.25 0.00 0.46 0.20 0.00 0.31
Avail Cap(c_a), veh/h 252 3143 3130 729 4194 4333 674 0 793 562 0 730
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 25.5 12.5 12.5 24.4 8.6 8.6 20.8 0.0 19.0 21.9 0.0 18.4
Incr Delay (d2), s/veh 3.3 0.7 0.7 1.5 0.1 0.1 0.1 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 4.7 4.7 0.7 1.7 1.8 0.9 0.0 1.6 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 28.7 13.2 13.2 25.8 8.6 8.6 21.0 0.0 19.3 22.0 0.0 18.6
LnGrp LOS C B B C A A C A B C A B
Approach Vol, veh/h 1190 698 237 151
Approach Delay, s/veh 13.5 10.2 19.9 19.8
Approach LOS B B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.4 31.4 15.2 8.0 29.8 15.2
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.7 7.2 7.7 3.6 18.1 8.5
Green Ext Time (p_c), s 0.0 2.5 0.7 0.0 5.8 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.6
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 272 19 629 283 49 1088
Future Volume (vph) 272 19 629 283 49 1088
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.265
Satd. Flow (perm) 3532 0 3464 0 484 3503
Satd. Flow (RTOR) 4 108
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 306 0 960 0 52 1145
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.2 24.7 25.8 25.8
Actuated g/C Ratio 0.23 0.51 0.54 0.54
v/c Ratio 0.37 0.52 0.20 0.61
Control Delay 17.2 8.4 9.3 9.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 17.2 8.4 9.3 9.8
LOS B A A A
Approach Delay 17.2 8.4 9.8
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 48
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.61
Intersection Signal Delay: 10.2 Intersection LOS: B
Intersection Capacity Utilization 55.4% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Future Volume (vph) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 3% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 143.5
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Future Volume (veh/h) 132 1020 72 137 497 181 19 169 530 140 277 911 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1973 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 133 1030 73 138 502 183 171 535 141 280 920 32
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 3 2 3 1 0 1 1 0
Cap, veh/h 128 1131 80 165 1039 376 222 740 194 339 1049 36
Arrive On Green 0.08 0.38 0.38 0.09 0.39 0.39 0.06 0.26 0.26 0.10 0.30 0.30
Sat Flow, veh/h 1593 3008 213 1893 2687 974 3428 2799 734 3483 3530 123
Grp Volume(v), veh/h 133 544 559 138 349 336 171 341 335 280 467 485
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1874 1786 1714 1791 1742 1742 1791 1861
Q Serve(g_s), s 10.5 42.6 42.6 9.4 18.4 18.6 6.4 22.7 22.9 10.3 32.5 32.5
Cycle Q Clear(g_c), s 10.5 42.6 42.6 9.4 18.4 18.6 6.4 22.7 22.9 10.3 32.5 32.5
Prop In Lane 1.00 0.13 1.00 0.55 1.00 0.42 1.00 0.07
Lane Grp Cap(c), veh/h 128 597 613 165 725 691 222 473 461 339 532 553
V/C Ratio(X) 1.04 0.91 0.91 0.84 0.48 0.49 0.77 0.72 0.73 0.83 0.88 0.88
Avail Cap(c_a), veh/h 128 685 703 260 915 872 274 498 485 704 717 745
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 60.3 38.8 38.9 58.9 30.3 30.4 60.4 43.8 43.9 58.1 43.8 43.8
Incr Delay (d2), s/veh 91.5 14.8 14.5 7.0 0.4 0.4 7.8 4.5 4.8 2.0 8.7 8.4
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 7.5 18.7 19.2 4.8 8.3 8.0 3.0 10.5 10.3 4.6 15.3 15.9
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 151.8 53.6 53.4 66.0 30.7 30.8 68.2 48.3 48.7 60.1 52.5 52.2
LnGrp LOS F D D E C C E D D E D D
Approach Vol, veh/h 1236 823 847 1232
Approach Delay, s/veh 64.1 36.6 52.5 54.1
Approach LOS E D D D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 18.3 40.2 17.4 55.3 14.0 44.5 16.0 56.7
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 12.3 24.9 11.4 44.6 8.4 34.5 12.5 20.6
Green Ext Time (p_c), s 0.4 2.5 0.1 4.6 0.1 4.5 0.0 3.8
Intersection Summary
HCM 6th Ctrl Delay 53.3
HCM 6th LOS D
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Future Volume (vph) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 81.7
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Future Volume (veh/h) 147 0 242 7 1 8 91 756 1 96 2 1031 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 153 0 252 7 1 8 95 788 1 2 1074 33
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 342 0 323 118 38 81 126 1967 2 5 1665 51
Arrive On Green 0.21 0.00 0.21 0.21 0.21 0.21 0.07 0.54 0.54 0.00 0.47 0.47
Sat Flow, veh/h 1112 0 1516 198 179 378 1810 3671 5 1810 3547 109
Grp Volume(v), veh/h 153 0 252 16 0 0 95 384 405 2 542 565
Grp Sat Flow(s),veh/h/ln 1112 0 1516 756 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 10.7 0.1 0.0 0.0 3.5 8.7 8.7 0.1 15.8 15.8
Cycle Q Clear(g_c), s 9.8 0.0 10.7 9.9 0.0 0.0 3.5 8.7 8.7 0.1 15.8 15.8
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 342 0 323 237 0 0 126 960 1010 5 840 875
V/C Ratio(X) 0.45 0.00 0.78 0.07 0.00 0.00 0.76 0.40 0.40 0.41 0.65 0.65
Avail Cap(c_a), veh/h 657 0 675 546 0 0 515 2366 2490 594 2445 2546
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 25.1 0.0 25.4 21.8 0.0 0.0 31.3 9.4 9.4 34.1 13.8 13.8
Incr Delay (d2), s/veh 0.9 0.0 4.1 0.1 0.0 0.0 8.9 0.4 0.4 45.9 1.2 1.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.3 0.0 4.1 0.2 0.0 0.0 1.8 2.8 2.9 0.1 5.5 5.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 26.0 0.0 29.5 21.9 0.0 0.0 40.2 9.8 9.8 80.0 15.0 15.0
LnGrp LOS C A C C A A D A A F B B
Approach Vol, veh/h 405 16 884 1109
Approach Delay, s/veh 28.2 21.9 13.0 15.1
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 42.2 20.6 10.3 37.6 20.6
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2022 Existing PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 10.7 12.7 5.5 17.8 11.9
Green Ext Time (p_c), s 0.0 8.3 1.7 0.2 14.4 0.0
Intersection Summary
HCM 6th Ctrl Delay 16.6
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 No Action AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 457 41 14 850 22 71 20 63 36 11 14
Future Volume (vph) 17 457 41 14 850 22 71 20 63 36 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 10% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 45.2
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 457 41 14 850 22 71 20 63 36 11 14
Future Volume (veh/h) 17 457 41 14 850 22 71 20 63 36 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 1986 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 471 42 14 876 23 73 21 65 37 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 10 3 0 3 0 9 0
Cap, veh/h 36 992 88 37 1383 36 442 78 241 369 116 148
Arrive On Green 0.02 0.36 0.36 0.02 0.35 0.35 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2778 247 2034 3926 103 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 253 260 14 440 459 73 0 86 37 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1528 2034 1972 2057 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.7 4.7 0.2 6.7 6.7 1.6 0.0 1.5 1.0 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.7 4.7 0.2 6.7 6.7 2.1 0.0 1.5 2.5 0.0 0.5
Prop In Lane 1.00 0.16 1.00 0.05 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 534 546 37 695 725 442 0 319 369 0 265
V/C Ratio(X) 0.50 0.47 0.48 0.38 0.63 0.63 0.17 0.00 0.27 0.10 0.00 0.09
Avail Cap(c_a), veh/h 836 5317 5431 1073 7008 7308 704 0 638 590 0 529
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.4 9.0 9.0 17.5 9.7 9.7 13.2 0.0 12.7 13.8 0.0 12.3
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.3 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.0 1.1 0.1 2.0 2.1 0.4 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.3 9.2 9.2 19.9 10.1 10.1 13.2 0.0 12.9 13.8 0.0 12.4
LnGrp LOS C A A B B B B A B B A B
Approach Vol, veh/h 531 913 159 62
Approach Delay, s/veh 9.6 10.2 13.0 13.2
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 18.7 11.5 5.7 18.9 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 8.7 4.1 2.2 6.7 4.5
Green Ext Time (p_c), s 0.0 3.9 0.3 0.0 2.0 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 257 55 1365 283 33 350
Future Volume (vph) 257 55 1365 283 33 350
Satd. Flow (prot) 3403 0 3504 0 1769 3306
Flt Permitted 0.960 0.088
Satd. Flow (perm) 3403 0 3504 0 164 3306
Satd. Flow (RTOR) 12 54
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 4% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 325 0 1717 0 34 365
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 13.1 49.8 50.9 50.9
Actuated g/C Ratio 0.17 0.66 0.68 0.68
v/c Ratio 0.54 0.73 0.31 0.16
Control Delay 32.2 10.4 14.2 4.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 32.2 10.4 14.2 4.8
LOS C B B A
Approach Delay 32.2 10.4 5.6
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 74.9
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.73
Intersection Signal Delay: 12.5 Intersection LOS: B
Intersection Capacity Utilization 66.1% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Future Volume (vph) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 10% 11% 16% 3% 3% 2% 0% 5% 3% 4% 6% 4% 23%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 166.1
Natural Cycle: 115
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Future Volume (veh/h) 172 341 44 114 692 303 6 171 1057 53 130 292 58
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1540 1525 1451 1973 1973 1988 1826 1856 1841 1811 1841 1559
Adj Flow Rate, veh/h 179 355 46 119 721 316 178 1101 55 135 304 60
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 10 11 16 3 3 2 5 3 4 6 4 23
Cap, veh/h 196 966 124 142 808 354 226 1187 59 178 973 189
Arrive On Green 0.13 0.37 0.37 0.08 0.32 0.32 0.07 0.35 0.35 0.05 0.33 0.33
Sat Flow, veh/h 1466 2581 332 1879 2533 1110 3374 3417 171 3346 2918 568
Grp Volume(v), veh/h 179 198 203 119 533 504 178 568 588 135 181 183
Grp Sat Flow(s),veh/h/ln 1466 1449 1464 1879 1874 1768 1687 1763 1825 1673 1749 1738
Q Serve(g_s), s 18.5 15.2 15.5 9.6 41.6 41.6 8.0 47.6 47.6 6.1 11.8 12.1
Cycle Q Clear(g_c), s 18.5 15.2 15.5 9.6 41.6 41.6 8.0 47.6 47.6 6.1 11.8 12.1
Prop In Lane 1.00 0.23 1.00 0.63 1.00 0.09 1.00 0.33
Lane Grp Cap(c), veh/h 196 542 548 142 598 564 226 612 634 178 583 579
V/C Ratio(X) 0.91 0.37 0.37 0.84 0.89 0.89 0.79 0.93 0.93 0.76 0.31 0.32
Avail Cap(c_a), veh/h 225 609 615 220 745 703 1022 661 684 251 583 579
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 65.6 34.8 34.9 70.0 49.7 49.7 70.5 48.2 48.2 71.7 38.0 38.1
Incr Delay (d2), s/veh 32.6 0.3 0.3 9.0 10.6 11.2 2.3 18.4 18.0 4.6 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 8.7 5.5 5.6 5.0 21.1 20.0 3.5 23.6 24.4 2.7 5.1 5.2
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 98.2 35.1 35.2 79.0 60.4 61.0 72.8 66.6 66.3 76.3 38.2 38.3
LnGrp LOS F D D E E E E E E E D D
Approach Vol, veh/h 580 1156 1334 499
Approach Delay, s/veh 54.6 62.5 67.3 48.6
Approach LOS D E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 13.6 58.8 17.6 63.4 15.8 56.7 26.0 55.0
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 8.1 49.6 11.6 17.5 10.0 14.1 20.5 43.6
Green Ext Time (p_c), s 0.1 3.6 0.1 2.0 0.3 1.0 0.1 5.4
Intersection Summary
HCM 6th Ctrl Delay 61.1
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Future Volume (vph) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 6% 40% 0% 0% 1% 4% 29% 2% 0% 6% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 73.7
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Future Volume (veh/h) 54 1 70 5 0 5 104 1201 7 42 3 376 18
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1717 1307 1900 1900 1885 1841 1470 1900 1811 1811
Adj Flow Rate, veh/h 58 1 75 5 0 5 112 1291 8 3 404 19
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 6 40 0 0 1 4 29 0 6 6
Cap, veh/h 254 3 129 136 25 67 145 2172 13 7 1783 84
Arrive On Green 0.09 0.09 0.09 0.09 0.00 0.09 0.08 0.61 0.61 0.00 0.53 0.53
Sat Flow, veh/h 1448 37 1440 462 281 743 1795 3563 22 1810 3345 157
Grp Volume(v), veh/h 59 0 75 10 0 0 112 633 666 3 207 216
Grp Sat Flow(s),veh/h/ln 1485 0 1440 1486 0 0 1795 1749 1837 1810 1721 1782
Q Serve(g_s), s 0.0 0.0 2.9 0.0 0.0 0.0 3.5 12.7 12.7 0.1 3.7 3.7
Cycle Q Clear(g_c), s 1.9 0.0 2.9 1.9 0.0 0.0 3.5 12.7 12.7 0.1 3.7 3.7
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 258 0 129 227 0 0 145 1066 1120 7 917 949
V/C Ratio(X) 0.23 0.00 0.58 0.04 0.00 0.00 0.77 0.59 0.59 0.41 0.23 0.23
Avail Cap(c_a), veh/h 480 0 365 452 0 0 266 4167 4377 269 4100 4245
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 24.6 0.0 25.0 23.9 0.0 0.0 25.8 6.8 6.8 28.5 7.1 7.1
Incr Delay (d2), s/veh 0.4 0.0 4.1 0.1 0.0 0.0 8.4 0.8 0.7 32.4 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.8 0.0 1.1 0.1 0.0 0.0 1.7 3.1 3.2 0.1 1.0 1.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 25.0 0.0 29.1 24.0 0.0 0.0 34.2 7.6 7.6 60.8 7.3 7.3
LnGrp LOS C A C C A A C A A E A A
Approach Vol, veh/h 134 10 1411 426
Approach Delay, s/veh 27.3 24.0 9.7 7.7
Approach LOS C C A A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 40.4 11.1 10.1 36.0 11.1
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 14.7 4.9 5.5 5.7 3.9
Green Ext Time (p_c), s 0.0 20.2 0.3 0.1 3.8 0.0
Intersection Summary
HCM 6th Ctrl Delay 10.5
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 No Action PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 23 981 168 60 598 32 77 34 117 53 61 34
Future Volume (vph) 23 981 168 60 598 32 77 34 117 53 61 34
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 3% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 64.6
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 23 981 168 60 598 32 77 34 117 53 61 34
Future Volume (veh/h) 23 981 168 60 598 32 77 34 117 53 61 34
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2091 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 24 1022 175 62 623 33 80 35 122 55 64 35
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 3 4 0 1 0 2 3
Cap, veh/h 47 1287 220 114 1860 98 321 75 263 262 201 110
Arrive On Green 0.03 0.46 0.46 0.06 0.49 0.49 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2816 481 2034 3836 203 1344 391 1362 1143 1042 570
Grp Volume(v), veh/h 24 599 598 62 322 334 80 0 157 55 0 99
Grp Sat Flow(s),veh/h/ln 1669 1651 1646 2034 1986 2052 1344 0 1753 1143 0 1612
Q Serve(g_s), s 0.8 16.8 16.9 1.6 5.4 5.4 3.0 0.0 4.3 2.4 0.0 2.9
Cycle Q Clear(g_c), s 0.8 16.8 16.9 1.6 5.4 5.4 5.8 0.0 4.3 6.8 0.0 2.9
Prop In Lane 1.00 0.29 1.00 0.10 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 47 755 752 114 963 995 321 0 338 262 0 311
V/C Ratio(X) 0.51 0.79 0.80 0.55 0.33 0.34 0.25 0.00 0.46 0.21 0.00 0.32
Avail Cap(c_a), veh/h 245 3064 3056 710 4088 4224 654 0 773 546 0 711
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 26.1 12.6 12.6 25.0 8.6 8.6 21.4 0.0 19.5 22.5 0.0 18.9
Incr Delay (d2), s/veh 3.2 0.7 0.7 1.5 0.1 0.1 0.1 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 4.9 5.0 0.8 1.8 1.9 0.9 0.0 1.7 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 29.3 13.3 13.3 26.5 8.7 8.7 21.5 0.0 19.8 22.6 0.0 19.1
LnGrp LOS C B B C A A C A B C A B
Approach Vol, veh/h 1221 718 237 154
Approach Delay, s/veh 13.6 10.2 20.4 20.3
Approach LOS B B C C
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.5 32.4 15.5 8.0 30.9 15.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.8 7.4 7.8 3.6 18.9 8.8
Green Ext Time (p_c), s 0.0 2.6 0.7 0.0 6.0 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.7
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 280 20 648 292 50 1121
Future Volume (vph) 280 20 648 292 50 1121
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.254
Satd. Flow (perm) 3532 0 3464 0 464 3503
Satd. Flow (RTOR) 4 108
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 316 0 989 0 53 1180
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.4 25.7 26.8 26.8
Actuated g/C Ratio 0.23 0.52 0.54 0.54
v/c Ratio 0.38 0.53 0.21 0.62
Control Delay 17.9 8.4 9.5 9.9
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 17.9 8.4 9.5 9.9
LOS B A A A
Approach Delay 17.9 8.4 9.9
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 49.3
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.62
Intersection Signal Delay: 10.3 Intersection LOS: B
Intersection Capacity Utilization 56.5% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Future Volume (vph) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 1198 1369 788
Travel Time (s) 10.7 23.3 23.3 13.4
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 3% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 146.9
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Future Volume (veh/h) 136 1051 74 141 512 186 20 174 546 144 285 939 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1973 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 137 1062 75 142 517 188 176 552 145 288 948 33
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 3 2 3 1 0 1 1 0
Cap, veh/h 120 1140 81 168 1063 385 224 751 197 344 1065 37
Arrive On Green 0.08 0.38 0.38 0.09 0.40 0.40 0.07 0.27 0.27 0.10 0.30 0.30
Sat Flow, veh/h 1593 3009 212 1893 2688 973 3428 2801 733 3483 3530 123
Grp Volume(v), veh/h 137 561 576 142 360 345 176 352 345 288 481 500
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1874 1786 1714 1791 1743 1742 1791 1861
Q Serve(g_s), s 10.5 47.0 47.1 10.3 19.9 20.1 7.0 24.9 25.1 11.3 35.6 35.6
Cycle Q Clear(g_c), s 10.5 47.0 47.1 10.3 19.9 20.1 7.0 24.9 25.1 11.3 35.6 35.6
Prop In Lane 1.00 0.13 1.00 0.54 1.00 0.42 1.00 0.07
Lane Grp Cap(c), veh/h 120 602 619 168 741 707 224 480 468 344 540 562
V/C Ratio(X) 1.14 0.93 0.93 0.85 0.49 0.49 0.79 0.73 0.74 0.84 0.89 0.89
Avail Cap(c_a), veh/h 120 646 664 245 863 823 259 480 468 664 677 703
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 64.2 41.4 41.4 62.4 31.4 31.5 64.0 46.3 46.4 61.5 46.3 46.3
Incr Delay (d2), s/veh 123.8 19.3 19.1 11.5 0.4 0.4 10.9 5.4 5.8 2.1 11.3 10.9
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 8.4 21.3 21.8 5.5 9.1 8.7 3.4 11.6 11.4 5.0 17.2 17.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 188.0 60.7 60.5 73.9 31.8 31.9 74.9 51.7 52.1 63.6 57.6 57.2
LnGrp LOS F E E E C C E D D E E E
Approach Vol, veh/h 1274 847 873 1269
Approach Delay, s/veh 74.3 38.9 56.6 58.8
Approach LOS E D E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 19.2 42.8 18.3 58.6 14.6 47.4 16.0 60.9
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 13.3 27.1 12.3 49.1 9.0 37.6 12.5 22.1
Green Ext Time (p_c), s 0.4 2.4 0.1 3.6 0.0 4.3 0.0 3.9
Intersection Summary
HCM 6th Ctrl Delay 59.0
HCM 6th LOS E
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Future Volume (vph) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 85.9
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Future Volume (veh/h) 151 0 249 7 1 8 94 779 1 99 2 1062 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 157 0 259 7 1 8 98 811 1 2 1106 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 328 0 327 108 36 71 129 2000 2 5 1688 52
Arrive On Green 0.22 0.00 0.22 0.22 0.22 0.22 0.07 0.54 0.54 0.00 0.48 0.48
Sat Flow, veh/h 1055 0 1516 165 167 331 1810 3671 5 1810 3547 109
Grp Volume(v), veh/h 157 0 259 16 0 0 98 396 416 2 558 582
Grp Sat Flow(s),veh/h/ln 1055 0 1516 663 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 11.6 0.1 0.0 0.0 3.8 9.3 9.3 0.1 17.0 17.0
Cycle Q Clear(g_c), s 11.2 0.0 11.6 11.3 0.0 0.0 3.8 9.3 9.3 0.1 17.0 17.0
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 328 0 327 215 0 0 129 976 1027 5 852 888
V/C Ratio(X) 0.48 0.00 0.79 0.07 0.00 0.00 0.76 0.41 0.41 0.41 0.65 0.66
Avail Cap(c_a), veh/h 612 0 644 493 0 0 492 2259 2377 567 2334 2431
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 26.5 0.0 26.6 22.8 0.0 0.0 32.7 9.5 9.5 35.7 14.3 14.3
Incr Delay (d2), s/veh 1.1 0.0 4.4 0.1 0.0 0.0 8.7 0.4 0.4 46.0 1.2 1.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.5 0.0 4.4 0.2 0.0 0.0 1.9 3.0 3.2 0.1 6.0 6.3
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 27.6 0.0 31.0 23.0 0.0 0.0 41.4 9.9 9.9 81.7 15.5 15.5
LnGrp LOS C A C C A A D A A F B B
Approach Vol, veh/h 416 16 910 1142
Approach Delay, s/veh 29.7 23.0 13.3 15.6
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 44.6 21.5 10.6 39.6 21.5
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 No Action PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 11.3 13.6 5.8 19.0 13.3
Green Ext Time (p_c), s 0.0 8.7 1.7 0.2 15.1 0.0
Intersection Summary
HCM 6th Ctrl Delay 17.2
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 With Project AM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 17 466 41 14 873 38 71 20 63 36 11 14
Future Volume (vph) 17 466 41 14 873 38 71 20 63 36 11 14
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 2 5 5 2 3 4 4 3
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Heavy Vehicles (%) 6% 12% 0% 0% 4% 5% 3% 0% 3% 0% 9% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 24.0 134.0 24.0 134.0 18.0 18.0 18.0 18.0
Total Split (%) 13.6% 76.1% 13.6% 76.1% 10.2% 10.2% 10.2% 10.2%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 46.2
Natural Cycle: 60
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 17 466 41 14 873 38 71 20 63 36 11 14
Future Volume (veh/h) 17 466 41 14 873 38 71 20 63 36 11 14
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1664 1575 1753 2136 2076 2061 1973 2018 1973 1753 1619 1753
Adj Flow Rate, veh/h 18 480 42 14 900 39 73 21 65 37 11 14
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Percent Heavy Veh, % 6 12 0 0 4 5 3 0 3 0 9 0
Cap, veh/h 36 1024 89 37 1399 61 434 77 238 362 115 146
Arrive On Green 0.02 0.37 0.37 0.02 0.36 0.36 0.18 0.18 0.18 0.18 0.18 0.18
Sat Flow, veh/h 1585 2783 243 2034 3850 167 1453 432 1336 1223 645 821
Grp Volume(v), veh/h 18 257 265 14 461 478 73 0 86 37 0 25
Grp Sat Flow(s),veh/h/ln 1585 1496 1529 2034 1972 2045 1453 0 1768 1223 0 1466
Q Serve(g_s), s 0.4 4.8 4.9 0.2 7.1 7.1 1.6 0.0 1.5 1.0 0.0 0.5
Cycle Q Clear(g_c), s 0.4 4.8 4.9 0.2 7.1 7.1 2.1 0.0 1.5 2.5 0.0 0.5
Prop In Lane 1.00 0.16 1.00 0.08 1.00 0.76 1.00 0.56
Lane Grp Cap(c), veh/h 36 551 563 37 717 743 434 0 315 362 0 261
V/C Ratio(X) 0.50 0.47 0.47 0.38 0.64 0.64 0.17 0.00 0.27 0.10 0.00 0.10
Avail Cap(c_a), veh/h 820 5215 5331 1053 6874 7127 690 0 626 577 0 519
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 17.7 8.9 8.9 17.8 9.7 9.7 13.5 0.0 13.0 14.1 0.0 12.6
Incr Delay (d2), s/veh 3.9 0.2 0.2 2.4 0.4 0.4 0.1 0.0 0.2 0.0 0.0 0.1
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.2 1.1 1.1 0.1 2.1 2.2 0.5 0.0 0.5 0.2 0.0 0.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 21.6 9.1 9.1 20.2 10.1 10.1 13.6 0.0 13.2 14.2 0.0 12.7
LnGrp LOS C A A C B B B A B B A B
Approach Vol, veh/h 540 953 159 62
Approach Delay, s/veh 9.5 10.2 13.4 13.6
Approach LOS A B B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.8 19.3 11.5 5.7 19.5 11.5
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 19.0 128.0 13.0 19.0 128.0 13.0
Max Q Clear Time (g_c+I1), s 2.4 9.1 4.1 2.2 6.9 4.5
Green Ext Time (p_c), s 0.0 4.1 0.2 0.0 2.1 0.1
Intersection Summary
HCM 6th Ctrl Delay 10.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 261 55 1370 286 33 356
Future Volume (vph) 261 55 1370 286 33 356
Satd. Flow (prot) 3431 0 3504 0 1769 3306
Flt Permitted 0.960 0.087
Satd. Flow (perm) 3431 0 3504 0 162 3306
Satd. Flow (RTOR) 12 55
Confl. Peds. (#/hr) 2
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 3% 0% 2% 4% 0% 7%
Shared Lane Traffic (%)
Lane Group Flow (vph) 329 0 1725 0 34 371
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 26.0 150.0 150.0 150.0
Total Split (%) 14.8% 85.2% 85.2% 85.2%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 13.1 50.5 51.6 51.6
Actuated g/C Ratio 0.17 0.67 0.68 0.68
v/c Ratio 0.54 0.73 0.31 0.16
Control Delay 32.6 10.4 14.5 4.7
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 32.6 10.4 14.5 4.7
LOS C B B A
Approach Delay 32.6 10.4 5.5
Approach LOS C B A
Intersection Summary
Cycle Length: 176
Actuated Cycle Length: 75.7
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.73
Intersection Signal Delay: 12.6 Intersection LOS: B
Intersection Capacity Utilization 66.4% ICU Level of Service C
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Future Volume (vph) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 345 1369 229
Travel Time (s) 10.7 6.7 23.3 3.9
Confl. Peds. (#/hr)4 4 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 9% 11% 16% 3% 3% 2% 0% 5% 3% 4% 5% 3% 22%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 29.0 70.0 24.0 67.0 52.0 52.0 63.0 17.0 28.0
Total Split (%) 16.5% 39.8% 13.6% 38.1% 29.5% 29.5% 35.8% 9.7% 15.9%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 169.7
Natural Cycle: 135
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Future Volume (veh/h) 185 337 44 112 733 300 6 169 1084 52 144 303 58
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1555 1525 1451 1973 1973 1988 1826 1856 1841 1826 1856 1574
Adj Flow Rate, veh/h 193 351 46 117 764 312 176 1129 54 150 316 60
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 9 11 16 3 3 2 5 3 4 5 3 22
Cap, veh/h 209 999 130 138 839 342 221 1175 56 190 989 186
Arrive On Green 0.14 0.39 0.39 0.07 0.32 0.32 0.07 0.34 0.34 0.06 0.33 0.33
Sat Flow, veh/h 1481 2577 335 1879 2594 1058 3374 3425 164 3374 2962 556
Grp Volume(v), veh/h 193 196 201 117 552 524 176 581 602 150 186 190
Grp Sat Flow(s),veh/h/ln 1481 1449 1463 1879 1874 1778 1687 1763 1826 1687 1763 1755
Q Serve(g_s), s 21.3 15.8 16.1 10.2 46.6 46.7 8.5 53.3 53.4 7.3 13.0 13.3
Cycle Q Clear(g_c), s 21.3 15.8 16.1 10.2 46.6 46.7 8.5 53.3 53.4 7.3 13.0 13.3
Prop In Lane 1.00 0.23 1.00 0.60 1.00 0.09 1.00 0.32
Lane Grp Cap(c), veh/h 209 562 568 138 607 575 221 605 626 190 589 586
V/C Ratio(X) 0.93 0.35 0.35 0.85 0.91 0.91 0.80 0.96 0.96 0.79 0.32 0.32
Avail Cap(c_a), veh/h 211 566 571 205 692 656 950 614 636 235 589 586
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 70.1 35.8 35.9 75.6 53.6 53.6 76.1 53.2 53.2 77.0 41.0 41.1
Incr Delay (d2), s/veh 40.8 0.3 0.3 12.7 14.6 15.3 2.5 26.5 26.1 10.7 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 10.4 5.7 5.9 5.4 24.3 23.2 3.7 27.7 28.6 3.4 5.7 5.8
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 110.9 36.1 36.2 88.3 68.1 68.9 78.6 79.7 79.3 87.7 41.2 41.3
LnGrp LOS F D D F E E E E E F D D
Approach Vol, veh/h 590 1193 1359 526
Approach Delay, s/veh 60.6 70.4 79.4 54.5
Approach LOS E E E D
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 14.8 62.2 18.2 70.1 16.3 60.7 28.8 59.5
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 11
Max Green Setting (Gmax), s 11.5 57.5 18.0 * 65 46.5 22.5 23.5 61.0
Max Q Clear Time (g_c+I1), s 9.3 55.4 12.2 18.1 10.5 15.3 23.3 48.7
Green Ext Time (p_c), s 0.1 1.3 0.1 2.0 0.3 1.0 0.0 4.7
Intersection Summary
HCM 6th Ctrl Delay 69.9
HCM 6th LOS E
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Future Volume (vph) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 3 3 3 3 1 7 7 1
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Heavy Vehicles (%) 0% 0% 5% 40% 0% 0% 1% 4% 29% 2% 0% 7% 6%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 20.0 20.0 20.0 20.0 20.0 14.0 142.0 14.0 14.0 142.0
Total Split (%) 11.4% 11.4% 11.4% 11.4% 11.4% 8.0% 80.7% 8.0% 8.0% 80.7%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 176
Actuated Cycle Length: 78.9
Natural Cycle: 90
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Future Volume (veh/h) 54 1 85 5 0 5 104 1210 7 57 3 370 18
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 0.99 0.99 0.99 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1732 1307 1900 1900 1885 1841 1470 1900 1796 1811
Adj Flow Rate, veh/h 58 1 91 5 0 5 112 1301 8 3 398 19
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 0 0 5 40 0 0 1 4 29 0 7 6
Cap, veh/h 265 4 146 140 26 75 145 2166 13 7 1761 84
Arrive On Green 0.10 0.10 0.10 0.10 0.00 0.10 0.08 0.61 0.61 0.00 0.53 0.53
Sat Flow, veh/h 1436 35 1454 490 256 745 1795 3563 22 1810 3315 158
Grp Volume(v), veh/h 59 0 91 10 0 0 112 638 671 3 204 213
Grp Sat Flow(s),veh/h/ln 1471 0 1454 1491 0 0 1795 1749 1837 1810 1706 1767
Q Serve(g_s), s 0.0 0.0 3.5 0.0 0.0 0.0 3.6 13.3 13.3 0.1 3.8 3.8
Cycle Q Clear(g_c), s 1.9 0.0 3.5 1.9 0.0 0.0 3.6 13.3 13.3 0.1 3.8 3.8
Prop In Lane 0.98 1.00 0.50 0.50 1.00 0.01 1.00 0.09
Lane Grp Cap(c), veh/h 268 0 146 241 0 0 145 1063 1116 7 906 938
V/C Ratio(X) 0.22 0.00 0.63 0.04 0.00 0.00 0.77 0.60 0.60 0.41 0.23 0.23
Avail Cap(c_a), veh/h 466 0 357 439 0 0 259 4045 4248 261 3947 4086
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 24.7 0.0 25.5 24.0 0.0 0.0 26.6 7.1 7.1 29.3 7.4 7.4
Incr Delay (d2), s/veh 0.4 0.0 4.3 0.1 0.0 0.0 8.4 0.8 0.7 32.4 0.2 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.8 0.0 1.3 0.1 0.0 0.0 1.7 3.3 3.5 0.1 1.0 1.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 25.2 0.0 29.8 24.1 0.0 0.0 35.0 7.9 7.9 61.8 7.5 7.5
LnGrp LOS C A C C A A D A A E A A
Approach Vol, veh/h 150 10 1421 420
Approach Delay, s/veh 28.0 24.1 10.0 7.9
Approach LOS C C B A
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 41.4 11.9 10.3 36.8 11.9
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 15
Max Green Setting (Gmax), s 8.5 136.5 * 15 8.5 136.5 14.0
Max Q Clear Time (g_c+I1), s 2.1 15.3 5.5 5.6 5.8 3.9
Green Ext Time (p_c), s 0.0 20.6 0.3 0.1 3.8 0.0
Intersection Summary
HCM 6th Ctrl Delay 11.0
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green.
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 13
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 0 26 1513 56 0 505
Future Volume (vph) 0 26 1513 56 0 505
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Link Speed (mph) 25 40 40
Link Distance (ft) 254 229 577
Travel Time (s) 6.9 3.9 9.8
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 3% 4% 3% 3% 6%
Shared Lane Traffic (%)
Sign Control Stop Free Free
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 14
Intersection
Int Delay, s/veh 0.2
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Vol, veh/h 0 26 1513 56 0 505
Future Vol, veh/h 0 26 1513 56 0 505
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free
RT Channelized - None - None - None
Storage Length - 0 - - - -
Veh in Median Storage, # 0 - 0 - - 0
Grade, % 0 - 0 - - 0
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 3 4 3 3 6
Mvmt Flow 0 28 1645 61 0 549
Major/Minor Minor1 Major1 Major2
Conflicting Flow All - 853 0 0 - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - 6.96 - - - -
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - 3.33 - - - -
Pot Cap-1 Maneuver 0 300 - - 0 -
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - 300 - - - -
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach WB NB SB
HCM Control Delay, s 18.2 0 0
HCM LOS C
Minor Lane/Major Mvmt NBT NBR WBLn1 SBT
Capacity (veh/h) - - 300 -
HCM Lane V/C Ratio - - 0.094 -
HCM Control Delay (s) - - 18.2 -
HCM Lane LOS - - C -
HCM 95th %tile Q(veh) - - 0.3 -
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 15
Lane Group EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Volume (vph) 0 533 1095 24 0 50
Future Volume (vph) 0 533 1095 24 0 50
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Grade (%) 3% -3% 0%
Link Speed (mph) 35 35 30
Link Distance (ft) 345 853 191
Travel Time (s) 6.7 16.6 4.3
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 9% 3% 3% 3% 3%
Shared Lane Traffic (%)
Sign Control Free Free Stop
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project AM Peak Hour Page 16
Intersection
Int Delay, s/veh 0.4
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 533 1095 24 0 50
Future Vol, veh/h 0 533 1095 24 0 50
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - - 0
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 3 -3 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 9 3 3 3 3
Mvmt Flow 0 579 1190 26 0 54
Major/Minor Major1 Major2 Minor2
Conflicting Flow All - 0 - 0 - 608
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - - - - - 6.96
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - - - - - 3.33
Pot Cap-1 Maneuver 0 - - - 0 436
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - - - - 436
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach EB WB SB
HCM Control Delay, s 0 0 14.4
HCM LOS B
Minor Lane/Major Mvmt EBT WBT WBR SBLn1
Capacity (veh/h) - - - 436
HCM Lane V/C Ratio - - - 0.125
HCM Control Delay (s) - - - 14.4
HCM Lane LOS - - - B
HCM 95th %tile Q(veh) - - - 0.4
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Future 2024 With Project PM Peak Hour
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 23 994 168 60 639 61 77 34 117 53 61 34
Future Volume (vph) 23 994 168 60 639 61 77 34 117 53 61 34
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 5% -6% -3% 5%
Storage Length (ft) 100 0 150 0 50 0 50 0
Storage Lanes 1 0 1 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 25 25
Link Distance (ft) 259 547 236 196
Travel Time (s) 5.0 10.7 6.4 5.3
Confl. Peds. (#/hr) 8 8 5 8 8 5
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 1% 1% 0% 3% 2% 4% 0% 1% 0% 2% 3%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Perm NA Perm NA
Protected Phases 1 6 5 2 4 8
Permitted Phases 4 8
Detector Phase 1 6 5 2 4 4 8 8
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 7.0 7.0 7.0 7.0
Minimum Split (s) 10.0 22.0 10.0 21.0 25.0 25.0 26.0 26.0
Total Split (s) 13.0 107.0 24.0 118.0 29.0 29.0 29.0 29.0
Total Split (%) 8.1% 66.9% 15.0% 73.8% 18.1% 18.1% 18.1% 18.1%
Yellow Time (s) 4.0 5.0 4.0 5.0 4.0 4.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.0 6.0 5.0 6.0 5.0 5.0 5.0 5.0
Lead/Lag Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes
Recall Mode None Min None Min None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 65.1
Natural Cycle: 65
Control Type: Actuated-Uncoordinated
Splits and Phases: 1: 106th Pl SE & SE Carr Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
1: 106th Pl SE & SE Carr Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 23 994 168 60 639 61 77 34 117 53 61 34
Future Volume (veh/h) 23 994 168 60 639 61 77 34 117 53 61 34
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 0.99 0.99 0.99 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1753 1738 1738 2136 2091 2106 1958 2018 2003 1753 1723 1708
Adj Flow Rate, veh/h 24 1035 175 62 666 64 80 35 122 55 64 35
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 1 1 0 3 2 4 0 1 0 2 3
Cap, veh/h 47 1300 219 113 1787 172 319 75 262 260 201 110
Arrive On Green 0.03 0.46 0.46 0.06 0.49 0.49 0.19 0.19 0.19 0.19 0.19 0.19
Sat Flow, veh/h 1669 2822 476 2034 3659 351 1344 391 1362 1143 1042 570
Grp Volume(v), veh/h 24 605 605 62 361 369 80 0 157 55 0 99
Grp Sat Flow(s),veh/h/ln 1669 1651 1647 2034 1986 2024 1344 0 1753 1143 0 1612
Q Serve(g_s), s 0.8 17.1 17.2 1.6 6.2 6.3 3.0 0.0 4.4 2.5 0.0 2.9
Cycle Q Clear(g_c), s 0.8 17.1 17.2 1.6 6.2 6.3 5.9 0.0 4.4 6.8 0.0 2.9
Prop In Lane 1.00 0.29 1.00 0.17 1.00 0.78 1.00 0.35
Lane Grp Cap(c), veh/h 47 761 759 113 970 989 319 0 337 260 0 310
V/C Ratio(X) 0.52 0.80 0.80 0.55 0.37 0.37 0.25 0.00 0.47 0.21 0.00 0.32
Avail Cap(c_a), veh/h 243 3034 3028 703 4048 4126 647 0 765 539 0 704
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 0.00 1.00
Uniform Delay (d), s/veh 26.3 12.6 12.6 25.3 8.8 8.8 21.6 0.0 19.7 22.7 0.0 19.1
Incr Delay (d2), s/veh 3.2 0.7 0.7 1.5 0.1 0.1 0.2 0.0 0.4 0.1 0.0 0.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 0.3 5.0 5.1 0.8 2.1 2.1 0.9 0.0 1.7 0.6 0.0 1.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 29.6 13.3 13.4 26.8 8.9 8.9 21.8 0.0 20.1 22.9 0.0 19.3
LnGrp LOS C B B C A A C A C C A B
Approach Vol, veh/h 1234 792 237 154
Approach Delay, s/veh 13.7 10.3 20.6 20.6
Approach LOS B B C C
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 6.5 32.8 15.6 8.1 31.3 15.6
Change Period (Y+Rc), s 5.0 6.0 5.0 5.0 6.0 5.0
Max Green Setting (Gmax), s 8.0 112.0 24.0 19.0 101.0 24.0
Max Q Clear Time (g_c+I1), s 2.8 8.3 7.9 3.6 19.2 8.8
Green Ext Time (p_c), s 0.0 3.0 0.7 0.0 6.1 0.4
Intersection Summary
HCM 6th Ctrl Delay 13.7
HCM 6th LOS B
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 1
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 285 20 656 297 50 1129
Future Volume (vph) 285 20 656 297 50 1129
Satd. Flow (prot) 3532 0 3464 0 1734 3503
Flt Permitted 0.955 0.248
Satd. Flow (perm) 3532 0 3464 0 453 3503
Satd. Flow (RTOR) 4 109
Confl. Peds. (#/hr) 3
Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95
Heavy Vehicles (%) 1% 0% 1% 2% 2% 1%
Shared Lane Traffic (%)
Lane Group Flow (vph) 321 0 1004 0 53 1188
Turn Type Perm NA Perm NA
Protected Phases 2 6
Permitted Phases 8 6
Detector Phase 8 2 6 6
Switch Phase
Minimum Initial (s) 7.0 7.0 7.0 7.0
Minimum Split (s) 28.5 37.0 12.0 12.0
Total Split (s) 42.0 118.0 118.0 118.0
Total Split (%) 26.3% 73.8% 73.8% 73.8%
Yellow Time (s) 4.5 5.0 4.0 4.0
All-Red Time (s) 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 6.0 5.0 5.0
Lead/Lag
Lead-Lag Optimize?
Recall Mode None Min Min Min
Act Effct Green (s) 11.6 26.5 27.6 27.6
Actuated g/C Ratio 0.23 0.53 0.55 0.55
v/c Ratio 0.39 0.53 0.21 0.62
Control Delay 18.4 8.4 9.5 9.8
Queue Delay 0.0 0.0 0.0 0.0
Total Delay 18.4 8.4 9.5 9.8
LOS B A A A
Approach Delay 18.4 8.4 9.8
Approach LOS B A A
Intersection Summary
Cycle Length: 160
Actuated Cycle Length: 50.2
Natural Cycle: 70
Control Type: Actuated-Uncoordinated
Maximum v/c Ratio: 0.62
Intersection Signal Delay: 10.3 Intersection LOS: B
Intersection Capacity Utilization 57.0% ICU Level of Service B
Analysis Period (min) 15
Splits and Phases: 2: Benson Dr S (SR 515)/Benson Dr S & Benson Rd S
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 8
Lane Group EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Future Volume (vph) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 6% -3% 0% 0%
Storage Length (ft) 250 0 150 0 275 0 350 0
Storage Lanes 1 0 1 0 2 0 2 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 35 35 40 40
Link Distance (ft) 547 345 1369 237
Travel Time (s) 10.7 6.7 23.3 4.0
Confl. Peds. (#/hr) 4 13 13 4 8 11 11 8
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Heavy Vehicles (%) 1% 1% 7% 2% 2% 2% 0% 3% 1% 0% 1% 1% 0%
Shared Lane Traffic (%)
Turn Type Prot NA Prot NA Prot Prot NA Prot NA
Protected Phases 7 4 3 8 5 5 2 1 6
Permitted Phases
Detector Phase 7 4 3 8 5 5 2 1 6
Switch Phase
Minimum Initial (s) 5.0 7.0 5.0 7.0 5.0 5.0 7.0 5.0 7.0
Minimum Split (s) 10.5 35.5 11.0 29.0 10.5 10.5 27.5 10.5 34.5
Total Split (s) 16.0 62.0 24.0 70.0 16.0 16.0 42.0 32.0 58.0
Total Split (%) 10.0% 38.8% 15.0% 43.8% 10.0% 10.0% 26.3% 20.0% 36.3%
Yellow Time (s) 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lag Lead Lead Lag Lead Lag
Lead-Lag Optimize? Yes Yes Yes Yes Yes Yes Yes Yes Yes
Recall Mode None Min None Min None None None None None
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 147.2
Natural Cycle: 95
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 9
Control Type: Actuated-Uncoordinated
Splits and Phases: 3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 10
Movement EBL EBT EBR WBL WBT WBR NBU NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Future Volume (veh/h) 162 1039 73 139 585 184 20 172 592 142 311 956 32
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 0.99 1.00 0.99 1.00 0.99 1.00 0.99
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1673 1673 1584 1988 1988 1988 1856 1885 1900 1885 1885 1900
Adj Flow Rate, veh/h 164 1049 74 140 591 186 174 598 143 314 966 32
Peak Hour Factor 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Percent Heavy Veh, % 1 1 7 2 2 2 3 1 0 1 1 0
Cap, veh/h 121 1131 80 166 1103 346 222 757 181 370 1083 36
Arrive On Green 0.08 0.38 0.38 0.09 0.39 0.39 0.06 0.26 0.26 0.11 0.31 0.31
Sat Flow, veh/h 1593 3010 212 1893 2821 886 3428 2861 682 3483 3536 117
Grp Volume(v), veh/h 164 554 569 140 395 382 174 374 367 314 489 509
Grp Sat Flow(s),veh/h/ln 1593 1589 1632 1893 1889 1818 1714 1791 1752 1742 1791 1863
Q Serve(g_s), s 10.5 46.3 46.4 10.1 22.4 22.4 6.9 26.9 27.0 12.3 36.2 36.2
Cycle Q Clear(g_c), s 10.5 46.3 46.4 10.1 22.4 22.4 6.9 26.9 27.0 12.3 36.2 36.2
Prop In Lane 1.00 0.13 1.00 0.49 1.00 0.39 1.00 0.06
Lane Grp Cap(c), veh/h 121 597 613 166 739 711 222 474 464 370 549 571
V/C Ratio(X) 1.36 0.93 0.93 0.85 0.54 0.54 0.78 0.79 0.79 0.85 0.89 0.89
Avail Cap(c_a), veh/h 121 648 665 246 871 839 260 474 464 666 678 705
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 64.1 41.5 41.5 62.4 32.5 32.5 63.9 47.4 47.4 60.9 45.9 45.9
Incr Delay (d2), s/veh 206.1 18.6 18.3 10.7 0.4 0.5 10.5 8.4 8.8 2.1 11.6 11.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 11.1 20.9 21.4 5.3 10.3 9.9 3.3 12.9 12.7 5.5 17.5 18.2
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 270.1 60.1 59.8 73.1 33.0 33.0 74.4 55.8 56.2 63.0 57.5 57.2
LnGrp LOS F E E E C C E E E E E E
Approach Vol, veh/h 1287 917 915 1312
Approach Delay, s/veh 86.7 39.1 59.5 58.7
Approach LOS F D E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 20.2 42.2 18.1 58.1 14.5 48.0 16.0 60.2
Change Period (Y+Rc), s 5.5 5.5 6.0 * 6 5.5 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
3: 108th Ave SE/Benson Dr S (SR 515) & SE Carr Rd/SE Petrovitsky Rd 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 11
Max Green Setting (Gmax), s 26.5 36.5 18.0 * 57 10.5 52.5 10.5 64.0
Max Q Clear Time (g_c+I1), s 14.3 29.0 12.1 48.4 8.9 38.2 12.5 24.4
Green Ext Time (p_c), s 0.5 2.2 0.1 3.8 0.0 4.3 0.0 4.4
Intersection Summary
HCM 6th Ctrl Delay 63.0
HCM 6th LOS E
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 12
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (vph) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Future Volume (vph) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900
Grade (%) 4% 0% 0% 0%
Storage Length (ft) 75 0 0 0 200 0 375 0
Storage Lanes 1 1 0 0 1 0 1 0
Taper Length (ft) 25 25 25 25
Right Turn on Red Yes Yes Yes Yes
Link Speed (mph) 25 25 40 40
Link Distance (ft) 267 208 342 1369
Travel Time (s) 7.3 5.7 5.8 23.3
Confl. Peds. (#/hr) 1 1 1 1 1 1
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Heavy Vehicles (%) 0% 0% 1% 0% 0% 25% 0% 1% 100% 0% 0% 1% 0%
Shared Lane Traffic (%)
Turn Type Perm NA Perm Perm NA Prot NA Prot Prot NA
Protected Phases 4 8 5 2 1 1 6
Permitted Phases 4 4 8
Detector Phase 4 4 4 8 8 5 2 1 1 6
Switch Phase
Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Minimum Split (s) 29.5 29.5 29.5 35.0 35.0 10.5 23.5 10.5 10.5 26.5
Total Split (s) 36.0 36.0 36.0 36.0 36.0 25.0 96.0 28.0 28.0 99.0
Total Split (%) 22.5% 22.5% 22.5% 22.5% 22.5% 15.6% 60.0% 17.5% 17.5% 61.9%
Yellow Time (s) 4.5 4.5 4.5 5.0 5.0 4.5 4.5 4.5 4.5 4.5
All-Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Lost Time (s) 5.5 5.5 6.0 5.5 5.5 5.5 5.5
Lead/Lag Lead Lag Lead Lead Lag
Lead-Lag Optimize?Yes Yes Yes Yes Yes
Recall Mode None None None None None None Min None None Min
Intersection Summary
Area Type: Other
Cycle Length: 160
Actuated Cycle Length: 84
Natural Cycle: 80
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 13
Control Type: Actuated-Uncoordinated
Splits and Phases: 4: 108th Ave SE & SE 180th St
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 14
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBU SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Future Volume (veh/h) 151 0 277 7 1 8 94 792 1 128 2 1047 33
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1806 1806 1791 1900 1900 1530 1900 1885 418 1900 1885 1900
Adj Flow Rate, veh/h 157 0 289 7 1 8 98 825 1 2 1091 34
Peak Hour Factor 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96
Percent Heavy Veh, % 0 0 1 0 0 25 0 1 100 0 1 0
Cap, veh/h 350 0 354 117 37 84 129 1959 2 5 1648 51
Arrive On Green 0.23 0.00 0.23 0.23 0.23 0.23 0.07 0.53 0.53 0.00 0.46 0.46
Sat Flow, veh/h 1080 0 1516 202 158 360 1810 3671 4 1810 3546 110
Grp Volume(v), veh/h 157 0 289 16 0 0 98 402 424 2 551 574
Grp Sat Flow(s),veh/h/ln 1080 0 1516 721 0 0 1810 1791 1884 1810 1791 1865
Q Serve(g_s), s 0.0 0.0 13.3 0.1 0.0 0.0 3.9 10.0 10.0 0.1 17.5 17.6
Cycle Q Clear(g_c), s 11.3 0.0 13.3 11.4 0.0 0.0 3.9 10.0 10.0 0.1 17.5 17.6
Prop In Lane 1.00 1.00 0.44 0.50 1.00 0.00 1.00 0.06
Lane Grp Cap(c), veh/h 350 0 354 238 0 0 129 956 1005 5 833 867
V/C Ratio(X) 0.45 0.00 0.82 0.07 0.00 0.00 0.76 0.42 0.42 0.41 0.66 0.66
Avail Cap(c_a), veh/h 594 0 627 473 0 0 478 2197 2311 552 2270 2364
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 26.0 0.0 26.8 22.4 0.0 0.0 33.6 10.4 10.4 36.7 15.3 15.3
Incr Delay (d2), s/veh 0.9 0.0 4.7 0.1 0.0 0.0 8.7 0.4 0.4 46.1 1.3 1.2
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.5 0.0 5.1 0.2 0.0 0.0 1.9 3.4 3.5 0.1 6.4 6.6
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 26.9 0.0 31.4 22.5 0.0 0.0 42.4 10.8 10.8 82.8 16.6 16.5
LnGrp LOS C A C C A A D B B F B B
Approach Vol, veh/h 446 16 924 1127
Approach Delay, s/veh 29.9 22.5 14.1 16.6
Approach LOS C C B B
Timer - Assigned Phs 1 2 4 5 6 8
Phs Duration (G+Y+Rc), s 5.7 44.9 23.2 10.8 39.8 23.2
Change Period (Y+Rc), s 5.5 5.5 * 6 5.5 5.5 6.0
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th Signalized Intersection Summary
4: 108th Ave SE & SE 180th St 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 15
Max Green Setting (Gmax), s 22.5 90.5 * 31 19.5 93.5 30.0
Max Q Clear Time (g_c+I1), s 2.1 12.0 15.3 5.9 19.6 13.4
Green Ext Time (p_c), s 0.0 8.9 1.7 0.2 14.7 0.0
Intersection Summary
HCM 6th Ctrl Delay 18.1
HCM 6th LOS B
Notes
User approved ignoring U-Turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 13
Lane Group WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Volume (vph) 0 24 857 81 0 1299
Future Volume (vph) 0 24 857 81 0 1299
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Link Speed (mph) 25 40 40
Link Distance (ft) 296 237 582
Travel Time (s) 8.1 4.0 9.9
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 3% 1% 3% 3% 1%
Shared Lane Traffic (%)
Sign Control Stop Free Free
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
5: Benson Dr S (SR 515) & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 14
Intersection
Int Delay, s/veh 0.1
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
Traffic Vol, veh/h 0 24 857 81 0 1299
Future Vol, veh/h 0 24 857 81 0 1299
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free
RT Channelized - None - None - None
Storage Length - 0 - - - -
Veh in Median Storage, # 0 - 0 - - 0
Grade, % 0 - 0 - - 0
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 3 1 3 3 1
Mvmt Flow 0 26 932 88 0 1412
Major/Minor Minor1 Major1 Major2
Conflicting Flow All - 510 0 0 - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - 6.96 - - - -
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - 3.33 - - - -
Pot Cap-1 Maneuver 0 506 - - 0 -
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - 506 - - - -
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach WB NB SB
HCM Control Delay, s 12.5 0 0
HCM LOS B
Minor Lane/Major Mvmt NBT NBR WBLn1 SBT
Capacity (veh/h) - - 506 -
HCM Lane V/C Ratio - - 0.052 -
HCM Control Delay (s) - - 12.5 -
HCM Lane LOS - - B -
HCM 95th %tile Q(veh) - - 0.2 -
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Lanes, Volumes, Timings
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 15
Lane Group EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Volume (vph) 0 1492 829 23 0 79
Future Volume (vph) 0 1492 829 23 0 79
Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900
Grade (%) 3% -3% 0%
Link Speed (mph) 35 35 25
Link Distance (ft) 345 853 219
Travel Time (s) 6.7 16.6 6.0
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Heavy Vehicles (%) 3% 1% 3% 3% 3% 3%
Shared Lane Traffic (%)
Sign Control Free Free Stop
Intersection Summary
Area Type: Other
Control Type: Unsignalized
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
HCM 6th TWSC
6: SE Petrovitsky Rd & Site Access 09/14/2022
Benson-Pretrovitsky Retail (Renton)Synchro 11 Report
2024 With Project PM Peak Hour Page 16
Intersection
Int Delay, s/veh 0.4
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 1492 829 23 0 79
Future Vol, veh/h 0 1492 829 23 0 79
Conflicting Peds, #/hr 0 0 0 0 0 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - - 0
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 3 -3 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 3 1 3 3 3 3
Mvmt Flow 0 1622 901 25 0 86
Major/Minor Major1 Major2 Minor2
Conflicting Flow All - 0 - 0 - 463
Stage 1 - - - - - -
Stage 2 - - - - - -
Critical Hdwy - - - - - 6.96
Critical Hdwy Stg 1 - - - - - -
Critical Hdwy Stg 2 - - - - - -
Follow-up Hdwy - - - - - 3.33
Pot Cap-1 Maneuver 0 - - - 0 543
Stage 1 0 - - - 0 -
Stage 2 0 - - - 0 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - - - - 543
Mov Cap-2 Maneuver - - - - - -
Stage 1 - - - - - -
Stage 2 - - - - - -
Approach EB WB SB
HCM Control Delay, s 0 0 12.9
HCM LOS B
Minor Lane/Major Mvmt EBT WBT WBR SBLn1
Capacity (veh/h) - - - 543
HCM Lane V/C Ratio - - - 0.158
HCM Control Delay (s) - - - 12.9
HCM Lane LOS - - - B
HCM 95th %tile Q(veh) - - - 0.6
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Traffic Impact AnalysisBenson-Petrovitsky Retail – Renton, WA
Appendix D
Trip Generation Calculations
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Benson/Petrovitsky (Renton)
Trip Generation Estimate
TENW Project No. 5922
ITE
Land Use Units 1,2 LUC 2 In Out Trip Rate 2 In Out Total
WEEKDAY DAILY
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%265.12 1,061 1,060 2,121
Pass-by 3 58%-615 -615 -1,230
446 445 891
Drive-In Bank 2,850 SF 912 50%50%100.35 143 143 286
Pass-by 3 32%-46 -46 -92
97 97 194
0 0 0
Gross Daily Trips = 1,204 1,203 2,407
Less Pass-by Trips =-661 -661 -1,322
Net New Daily Trips = 543 542 1,085
WEEKDAY AM PEAK HOUR
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%16.06 64 64 128
Pass-by 60%-38 -39 -77
26 25 51
Drive-In Bank 2,850 SF 912 58%42%9.95 16 12 28
Pass-by 29%-5 -3 -8
11 9 20
Gross AM Peak Hour Trips = 80 76 156
Less Pass-by Trips =-43 -42 -85
Net New AM Peak Hour Trips = 37 34 71
WEEKDAY PM PEAK HOUR
Proposed Uses:
Convenience Store (2-4k)/Gas Station 8 VFP 945 50%50%18.42 74 73 147
Pass-by 56%-41 -41 -82
33 32 65
Drive-In Bank 2,850 SF 912 50%50%21.01 30 30 60
Pass-by 35%-11 -10 -21
19 20 39
Gross PM Peak Hour Trips = 104 103 207
Less Pass-by Trips =-52 -51 -103
Net New PM Peak Hour Trips = 52 52 104
Notes:
1. SF = Square Feet, VFP = Vehicle Fueling Positions
2. Land Use Codes, trip rates/equations, and pass-by trip percentages based on Institute of Transportation Engineers, Trip Generation Manual, 11th edition.
3. Daily pass-by assumed to be average of AM and PM peak hour pass-by.
Benson/Petrovitsky (Renton)
Weekday Trip Generation Summary
Directional Distribution Trips Generated
8/5/2022
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From: Jill Ding
Sent: Friday, January 13, 2023 2:23 PM
To: preservationdept@duwamishtribe.org
Subject: FW: Party of Record/Public Comments 2022-12-22 01:15 PM(PST)
Submission Notification
Thank you for your comments, your comments have been included in the official file for consideration
by the decision maker. You have also been added as a party of record for this project.
Please let me know if you have additional questions.
Thanks,
JILL DING, Senior Planner
City of Renton | CED | Planning Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425) 430-6598 | jding@rentonwa.gov
From: Party of Record <POR@rentonwa.gov>
Sent: Thursday, December 22, 2022 1:28 PM
To: Jill Ding <JDing@Rentonwa.gov>
Cc: Margarette Bravo <MBravo@rentonwa.gov>
Subject: RE: Party of Record/Public Comments 2022-12-22 01:15 PM(PST) Submission Notification
Jill,
We have already received a comment below for LUA22-000424. I have uploaded it to Laserfiche as a pdf
in the additional documents folder and added this contact info to the party of record list.
JENNY CISNEROS, Planning Technician
Planning Customer Service
City of Renton | CED | Planning Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425)430-6583 | jcisneros@rentonwa.gov
From: notification@civiclive.com <notification@civiclive.com>
Sent: Thursday, December 22, 2022 1:15 PM
To: Party of Record <POR@rentonwa.gov>
Subject: Party of Record/Public Comments 2022-12-22 01:15 PM(PST) Submission Notification
Party of Record/Public Comments 2022-12-22 01:15 PM(PST) was submitted by Guest on 12/22/2022
4:15:15 PM (GMT-08:00) Canada/Pacific
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attachments unless you know the content is safe.
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Name Value
NameFile: LUA22-000424
Gender Mx.
Name Duwamish Tribe
Address: 4705 West Marginal Way SW
CityState: Seattle, WA
Email preservationdept@duwamishtribe.org
Phone 206 431 1582 ext 104
Party of Record Only
Comments
Thank you for the opportunity to review and comment. Based on the information
provided and our understanding of the project and its APE we have no substantive
comments to offer at this time. The DAHP WISAARD website predictive model
indicates that there is moderately low risk of encountering archaeological
resources. Therefore the Tribe would accept that an IDP be put in place. We also
request that if any archaeological work or monitoring is performed, we would like
notification. Cultural and archaeological resources are non-renewable and are
best discovered prior to ground disturbance. The Tribe would also like the
opportunity to be present if or when an archaeologist is on site in the event that
an artifact or cultural resource is encountered. Please be aware that if the scope
of the project or the parameters for defining the APE change, we reserve the right
to modify our current position. In addition, the Tribe recommends that native
vegetation be used only if there is any proposed landscaping.
Prefer US Mail
To view this form submission online, please follow the link below:
https://rentonwa.gov/form/one.aspx?objectId=19201448&contextId=17174246&returnto=submissions
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From: Jill Ding
Sent: Friday, January 13, 2023 2:25 PM
To: ECY RE NW SEPA (NWRO)
Cc: Song, Jing (ECY)
Subject: RE: ECY SEPA 202206299 - TA Benson Petro- Comments
Kelli,
Thank you for your comments, your comments have been included in the official file for consideration
by the decision maker. You have also been added as a party of record for this project. Please let me
know if you have any additional questions.
Thanks,
JILL DING, Senior Planner
City of Renton | CED | Planning Division
1055 S Grady Way | 6th Floor | Renton, WA 98057
Virtual Permit Center | Online Applications and Inspections
(425) 430-6598 | jding@rentonwa.gov
From: ECY RE NW SEPA (NWRO) <nwsepa@ECY.WA.GOV>
Sent: Thursday, January 5, 2023 7:59 AM
To: Jill Ding <JDing@Rentonwa.gov>
Cc: Song, Jing (ECY) <JISO461@ECY.WA.GOV>
Subject: ECY SEPA 202206299 - TA Benson Petro- Comments
Good Morning,
Thank you for the opportunity to comment on the TA Benson Petro project (Lead Agency File No(s).
LUA22-000424, PR22-000345). Ecology’s comments have been submitted via the online comment
portal. I’ve also attached a copy for your reference.
[ Statewide SEPA Register No. 202206299 ]
Kelli Price (she/her)
ERTS & SEPA Coordinator
15700 Dayton Ave N | Shoreline, WA 98133
Department of Ecology | Northwest Region
Desk: (206) 594-0014
NOTICE: This communication is a public record and may be subject to disclosure pursuant to the Public Records Act
(RCW 42.56).
CAUTION: This email originated from outside the City of Renton. Do not click links, reply or open
attachments unless you know the content is safe.
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STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
Northwest Region Office
PO Box 330316, Shoreline, WA 98133-9716 • 206-594-0000
January 5, 2023
Jill Ding, Senior Planner
CED Planning Division
City of Renton
1055 South Grady Way, 6th Floor
Renton, WA 98057
Re: TA Benson Petro
File# LUA22-000424/PR22-000345, Ecology SEPA# 202206299
Dear Jill Ding:
Thank you for the opportunity to provide comments on the State Environmental Policy Act
(SEPA) notice of application utilizing the optional determination of nonsignificance (ODNS/NOA)
process for the TA Benson Petro project. Based on review of the checklist associated with this
project, the Department of Ecology (Ecology) has the following comments:
Section B Environmental Elements, Subsection 3 Water, Subsection 7 Groundwater:
Groundwater occurs at approximately 8 feet below ground surface. Please provide the
maximum depth of excavation during the construction. Please specify if dewatering is
anticipated during the construction.
Section B Environmental Elements, Subsection 7 Environmental Health:
The proposed project is located on a site listed in the Model Toxics Control Act (MTCA)
Confirmed and Contaminated Sites List (CSCSL) and Leaking Underground Storage Tanks List
(LUST). Please add the following contaminated site information in the SEPA checklist:
• Site Name: Texaco Fairwood
• Facility Site ID: 3376675
• Cleanup Site ID: 7533
• LUST Site ID: 2063
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Jill Ding
January 5, 2023
Page 2
The SEPA checklist indicates that recent environmental assessment in 2019 did not find
petroleum contamination. However, based on historical information, it is possible that
potential contaminated soil or groundwater may be encountered during the construction.
Please have a contingency mitigation plan in place to address the contaminated soil or
groundwater handling and disposal, hazardous waste operations worker training, health and
safety, and potential contamination remediation.
Thank you for considering these comments from Ecology. If you have any questions or would
like to respond to these comments, please contact Jing Song from the Toxics Cleanup Program
at (425) 229-2565 or by email at jing.song@ecy.wa.gov.
Sincerely,
Kelli Price
SEPA Coordinator
Sent by email: Jill Ding, jding@rentonwa.gov
ecc: Jing Song, Ecology
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DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Page 1 of 2 LUA22-000424
ADVISORY NOTES TO APPLICANT
The following notes are supplemental information provided in conjunction with the administrative land use
action. Because these notes are provided as information only, they are not subject to the appeal process for
the land use action.
Planning:
(Contact: Jill Ding, 425-430-6598, jding@rentonwa.gov)
1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless
otherwise approved by the Development Services Division.
2. Commercial, multi-family, new single family and other nonresidential construction activities shall be
restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through
Friday. Work on Saturdays shall be restricted to the hours between nine o’clock (9:00) a.m. and eight
o’clock (8:00) p.m. No work shall be permitted on Sundays.
3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an
appropriate ground cover over any portion of the site that is graded or cleared of vegetation and where
no further construction work will occur within ninety (90) days. Alternative measures such as mulch,
sodding, or plastic covering as specified in the current King County Surface Water Management Design
Manual as adopted by the City of Renton may be proposed between the dates of November 1st and
March 31st of each year. The Development Services Division’s approval of this work is required prior to
final inspection and approval of the permit.
4. A National Permit Discharge Elimination System (NPDES) permit is required when more than one acre is
being cleared.
5. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or
fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the
area defined by the drip line of any tree to be retained.
6. The applicant shall erect and maintain six foot (6') high chain link temporary construction fencing around
the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be
placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on
each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups
of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the
applicant shall provide supervision whenever equipment or trucks are moving near trees.
Development Engineering:
(Contact: Michael Sippo, 425-430-7298, msippo@rentonwa.gov)
1. See Attached Development Engineering Memo dated January 18, 2023
Fire Authority:
(Contact: Corey Thomas, 425-276-9582, cthomas@rentonrfa.org)
1. Fire impact fees are applicable at the rate of $0.26 per square foot of commercial bank/office space
and $1.25 per square foot of retail space. No charge for gas station canopy. This fee is paid at time of
building permit issuance. Credit will be granted for the area of total buildings removed.
2. The preliminary fire flow is 2,000 gpm. A minimum of one hydrant is required within 150-feet of each
structure and one additional hydrant is required within 300-feet of each structure. A water availability
certificate is required from Soos Creek Water District. The water availability certificate that has been
EXHIBIT 15
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ADVISORY NOTES TO APPLICANT
Page 2 of 2 LUA22-000424
provided is not sufficient as it only shows 1,000 gpm available. Existing fire hydrants that meet these
criteria can be used to satisfy the requirements.
3. Approved fire alarm systems are required throughout all buildings of 3,000 square feet or more.
Separate plans and permits required by the fire department. Fully addressable and full detection is
required for the fire alarm system. Fire sprinklers are not required in the proposed buildings.
4. Fire department apparatus access roadways are required within 150-feet of all points on the building.
Fire lane signage required for the on-site roadways. Required turning radiuses are 25-feet inside and
45-feet outside. Roadways shall be a minimum of 20-feet wide. Roadways shall support a minimum of
a 30-ton vehicle and 75-psi point loading.
5. Separate plans and permits are required to be submitted to and obtained from the Renton Regional
Fire Authority for all new underground gasoline tanks and tank monitoring systems.
Technical Services:
(Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov)
1. None
Community Services:
(Contact: Erica Schmitz, 425-430-6614, eschmitz@rentonwa.gov)
1. None
Police:
(Contact: Cyndie Parks, 425-430-7521, cparks@rentonwa.gov)
1. See attached memo.
Building:
(Contact: Rob Shuey, 425-430-7235, rshuey@rentonwa.gov)
1. None
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DEPARTMENT OF COMMUNITY
& ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: 01/18/2023
TO: Jill Ding, Senior Planner
FROM: Michael Sippo, Civil Engineer III, Plan Review
SUBJECT: Benson & 176th Commercial Redevelopment
17426 108th Ave SE & 10810, 10828 SE Petrovitsky Rd
LUA22-000424
I have reviewed for the Benson & 176th (Petrovitsky) project located at parcel(s) 292305-9017,
9095, and 9110. The following comments are based on the land-use application submittal made
to the City of Renton by the applicant.
EXISTING CONDITIONS
The site is approximately 1.67 acres in size and is rectangular in shape with two lots fronting SE
Petrovitsky Rd extending approximately 300 feet to the north with the parcel fronting both 108th
Ave SE (Benson) and SE Petrovitsky Rd extending approximately 140 feet to the north. The site
is relatively flat and contains a vacant gas-station and vehicle service building at the corner of the
intersection and vacant buildings on the longer rectangular parcels. There is also an active cell-
tower array located on one of the vacant parcels. As mentioned previously, the existing vacant
commercial sites contain multiple buildings and is covered approximately 900 percent by
impervious areas such as parking, buildings and service areas with the remainder grass and a treed
areas located within the interior of the site’s existing lot lines. The site generally slopes from the
east to west and runoff is collected by an existing onsite conveyance system and routed to the
public conveyance systems on 108th Ave SE and SE Petrovitsky Rd.
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Page 2 of 10
WATER
1. The subject development is within the water service area of Soos Creek Water and Sewer
District.
2. The site is located outside of an Aquifer Protection Area.
SEWER
1. The subject development is within the water service area of Soos Creek Water and Sewer
District.
STORM
1. The site is located within the Black River – Panther Creek Drainage Basin and contains
only minor regulated slopes along the north side of the property. The site topography
slopes from the east to west. There is an existing unmapped conveyance system located
on the 3 parcels that connect to the City’s conveyance system in SE Petrovitsky Rd and
108th Ave SE. There is an existing 12-inch stormwater main in SE Petrovitsky Rd south of
the subject property frontage located along the north flowline of the existing roadway
that flows from east to west into the intersection and continues north along 108th Ave SE.
TRANSPORTATION
1. The proposed development fronts SE Petrovitsky Road (176th St SE) along the southern
property lines of the development for a length of approximately 290 feet. SE Petrovitsky
Road is a five lane Principal Arterial. Per the King County Assessor map, the existing half
street ROW width on the site frontage is approximately 30 feet and contains flush 8’
sidewalks on both sides.
2. The proposed development fronts 108th Ave SE (Benson Road/ SR 515) along the western
property line of the development for a length of approximately 140 feet. 108th Ave SE is
a six lane Principal Arterial. Per the King County Assessor map, the existing half street
ROW width on the site frontage is approximately 45 feet and contains flush 8’ sidewalks
on both sides
CODE REQUIREMENTS
WATER
1. A water availability certificate from Soos Creek Water and Sewer District is required as
part of the Land-Use Application.
a. A Certificate of Water Availability dated 8/8/2022 was provided with the Land-
Use Application.
b. The Certificate of Water Availability notes that the “Water service will require and
improvement to the water system of: Water main fronting south side of property
along SE Petrovitsky Rd. Final water requirements and layout will be based on
the final site development plan, road, storm, grading and fire marshal
requirements.”
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Page 3 of 10
c. The Certificate of Water Availability notes that “Service is subject to the following:
Other: Will require oil and water separator.”
d. Renton Regional Fire Authority commented on January 6, 2023 that: “The
preliminary fire flow is 2,000 gpm…The water availability certificate that has been
provided is not sufficient as it only shows 1,000 gmp available”. Accommodation
shall be made to ensure that the site contains the required fire flow prior to civil
construction permit approval.
2. A copy of the approved water plan Error! Reference source not found. shall be provided
to the City prior to approval of the Civil Construction Permit.
a. The number and locations of fire hydrants shall be determined by the Renton
Regional Fire Authority as part of the review of the project plans.
3. The site is located outside of an Aquifer Protection Area.
SEWER
1. A sewer availability certificate from Soos Creek Water and Sewer District is required as a
part of the Land-Use Application.
a. A Certificate of Sewer Availability dated 8/9/2022 was provided with the Land-
Use Application
2. A copy of the approved sewer plans from Error! Reference source not found. shall be
provided to the City prior to approval of the Civil Construction Permit.
a. The covered fuel pump dispensary areas shall be connected to an oil/water
separator that drains to the sanitary sewer.
b. A grease interceptor is required if there is a commercial kitchen. The grease
interceptor shall be sized based on drainage fixture units in accordance with
standards found in the latest edition of the Uniform Plumbing Code (UPC). The
grease interceptor shall drain by gravity to the sewer main.
c. The dedicated garbage/recycling area shall be covered and will be required to
drain to an approved oil/water separator that drains to the sanitary sewer.
3. If any of the existing buildings on the site are served by private on-site septic systems, the
septic systems shall be abandoned in accordance with King County Department of Health
regulations and Renton Municipal Code.
SURFACE WATER
1. The development is subject to a system development charge (SDC) for stormwater. The
2023 SDC for stormwater is $0.92 per square foot of new impervious surface area, but
not less than $2,300.00. The fee that is current will be charged at the time of
construction permit issuance.
2. A preliminary Drainage Plan and Technical Information Report (TIR), dated August, 2022,
was submitted by Contour Engineering, LLC with the Land Use Application. Based on the
City of Renton’s flow control map, the site falls under Flow Control Duration Standards
(Forested Site Conditions) and is located within the Black River drainage basin. The
development is subject to a Full Drainage Review in accordance with the 2022 Renton
Surface Water Design Manual (RSWDM). All nine core requirements and the six special
requirements have been discussed in the Technical Information Report. The detention,
water quality and conveyance shall be designed in accordance with the RSWDM that is
current at the time of the civil construction permit application. The applicant has
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Benson Petrovitsky Redevelopment– LUA22-000424
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Page 4 of 10
proposed to connect to the City of Renton’s storm drainage system located within 108th
Ave SE.
a. The development currently is showing a 27,000 cubic foot detention vault to meet
the flow control requirement. During the review of the final TIR the applicant will
need to ensure that flow control standards are being met as outlined in the 2022
RSWDM.
b. The applicant is proposing to use the modular wetland in order for the project to
meet the enhanced water quality requirements. The modular wetland is located
within the parking lot downstream of the detention system prior to connecting
into the City of Renton system located within 108th Ave SE.
c. On-site BMPs satisfying Core Requirement #9 will be required for the site. On-site
BMPs shall be evaluated in order of preference by feasibility as described in
Section C.1.3 of the 2022 RSWDM. All targeted impervious area to the maximum
extent feasible shall be conveyed to an On-site BMP.
i. The applicant is not currently proposing any mitigation for the site based
on the infeasibility criteria within the 2022 RSWDM. Final review of onsite
BMP feasibility will be reviewed during the civil construction permit
approval process.
d. The following stormwater improvements are required and shall be discussed or
revised within the TIR:
i. All Core Requirements and Special Requirements must be evaluated within
the TIR. The technical information report did not address Core
Requirement #6 and shall be evaluated during the civil construction permit
approval process.
ii. The technical information report noted that “oil control is not required for
this project, but an oil-water separator is provided for the runoff from the
fuel pumps.” Per Special Requirement #5 of the 2022 RSWDM notes that if
the proposed project develops a site that will have high-use characteristics
then oil control must be met. Additionally, high-use road intersections are
required to provide oil control. Since the site has an expected average
daily traffic count equal to or greater than 100 vehicles per 1,000 square
feet of gross building are and is subject to petroleum storage or transfer in
excess of 1,500 gallons per year, oil control for the entire site is applicable.
Also, City traffic studies from 2009 note that the ADT for the Benson-
Petrovitsky intersection is 29,000 trips which exceeds the minimum of
25,000 trips meeting the definition of high-use intersection. The applicant
shall evaluate utilizing oil controls per Special Requirement #5 during the
civil construction permit approval process. These oil control facilities will
be in addition to the oil control requirements of the covered fuel islands
and garbage/recycling areas.
3. Storm drainage improvements along all public street frontages are required to conform
to the City’s street and stormwater conveyance standards. Any new storm drain
installed on or off-site shall be designed and sized in accordance with standards found in
Chapter 4 of the 2022 RSWDM and shall account for the total upstream tributary area,
assuming developed conditions for onsite tributary areas and existing conditions for any
offsite tributary areas.
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Page 5 of 10
4. Effective June 22, 2022, the City of Renton has adopted the 2022 RSWDM, which is
based on the 2021 King County SWDM. Under the new 2022 RSWDM stormwater
requirements, on-site BMP sizing credits for modeling credits can no longer be used for
privately maintained on-site BMPs, with the exception of full dispersion and full
infiltration BMPs.”
5. A geotechnical report for the site was prepared by PanGEO, Inc. dated May 2019 and
was provided with the land-use submittal. The report includes information concerning
the soils, geology, drainage patterns, vegetation present, water table and soil
permeability, with recommendations of appropriate on-site BMP options with typical
designs for the site from the geotechnical engineer.
a. The geotech report should indicates that the site contains a fill layer consisting of
a few inches of gravel over sandy silt ranging from 2-1/2 to 4-1/2 feet. Below the
fill layer is a highly impermeable weathered Vashon till and Renton formation of
hard sandy silt with gravel below the till. Groundwater seepage was encountered
in portions of the test pits and indicative of perched locations of water due to the
perched till.
i. Due to the native soils underlying the site consisting of Vashon till, a
medium to very dense deposit comprised of clay, silt, sand, gravel, and
perched groundwater, the report determines that infiltration is infeasible
and non-infiltration alternatives should be considered to manage the
surface runoff at the site. Staff concurs with this recommendation and will
provide final review of infiltration options during the civil construction
permit process.
ii. Due to the presence of perched groundwater, the report recommends
where seepage is encountered, the base of the excavation should be
sloped to one or more shallow sump pits. Where loose soils are
encountered in conjunction with groundwater seepage, remedial measure
such as overexcavation of soft soils or tamping quarry spall into the base
of the excavation may be required.
6. Erosion control measures and construction stormwater pollution prevention measures
to meet the City requirements shall be proved for during the civil construction permit
process.
7. A Construction Stormwater General Permit from Department of Ecology will be required
since grading and clearing of the site exceeds one acre. A Stormwater Pollution
Prevention Plan (SWPPP) is required for this site.
8. The current Surface Water Standard Plans shall be used in all drainage plan
submittals. The current City of Renton Standard Details is available online in the City
of Renton website.
TRANSPORTATION
1. Street and frontage requirements: The proposed development site has frontage on SE
Petrovitsky Road (176th St SE) and on 108th Ave SE ( Benson Road/ SR 515).
a. SE Petrovitsky Road (176th St SE) is a five lane Principal Arterial. Per the King
County Assessor map, the existing half street ROW width on the site frontage is
approximately 30 feet. Per Renton Municipal Code (RMC) 4-6-060, the minimum
ROW width required on a five lane principal arterial is 103 feet.
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i. In 2013, the City’s Transportation Division prepared a preliminary corridor
safety project to provide intersection improvements at the intersection of
SE Petrovitsky Rd and S Benson Dr (SR 515). The safety plans require
street frontage improvements that include an additional 11-feet wide
right-turn only lane, a 0.5-foot wide curb, an 8-foot wide landscaped
planter, a 12-foot wide ped/ bike path, 2-foot clear area from back of the
path to the new ROW line and a pedestrian safety refuge island. The
street and frontage section requires varying ROW dedication along the
frontage of the 3 parcels. The ROW dedication width of approximately
33.5 feet (subject to final survey) in front of parcel 10810 SE Petrovitsky
Road and varying ROW dedication of the frontages of parcels 17426 108th
Ave SE and 10828 SE Petrovitsky Road are required to be provided by the
developer.
ii. The applicant has provided a street section showing and labelling the
existing ROW line, centerline of ROW, ROW dedication, centerline of
pavement, pavement width, showing and labelling all the street frontage
elements and widths with the land use application. Staff concurs that this
street section generally meets the intention of the corridor safety project
and will review in detail during the civil construction permit process.
iii. The applicant shall provide detailed design and survey information for the
taper lane transition beyond the project’s eastern extent incoming to the
right-turn lane. The design information shall include connections and
rebuilding of the existing sidewalks to provide safe transitions and
reconstruction of neighboring driveways meeting ADA requirements to the
extent that the taper lane matches to existing improvements.
iv. The City of Renton 2023-2028 Transportation Improvement Program,
adopted October 3, 2022 identifies the Carr Rd Improvements as TIP
candidate project #22-29 and extends through the intersection of Carr
Rd/Petrovitsky and Benson Rd (https://cdn5-
hosted.civiclive.com/UserFiles/Servers/Server_7922657/File/City%20Hall/
Public%20Works/Transportation%20Systems/Planning%20and%20Progra
mming/Transportation%20Improvement%20Program%20(TIP)%202018-
2023/2023-
2028%20Transportation%20Improvement%20Program%20(TIP).pdf). The
purpose of the project is to provide “improvements are necessary to
enhance vehicle traffic capacity and safety for vehicles, bicycles, and
pedestrians on this major east-west transportation corridor.” As such, the
frontage improvements, or a portion thereof, may be eligible for credits to
the transportation impact fees levied for the project. These credits will be
determined prior to the issuance of the civil construction and building
permits for the project based on cost estimates provided by the applicant
and reviewed by the City Administrator. RMC 4-1-190 (J) outlines the
criteria for awarding of credits for dedications, construction of
improvements, and past tax payment.
v. The access from SE Petrovitsky Rd will be restricted to right-in right-out
only access (no left turns). C-curbing will be required to be provided on SE
Petrovitsky Road to prevent left turns to and from the site access. Signage
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shall be provided interior to the site and on the driveway approach across
the street to the south indicating right-turn out only.
vi. A minimum intersection radius of 35 feet is required at the intersection SE
Petrovitsky Road (176th St SE) and on 108th Ave SE (Benson Road/ SR 515),
however, the applicant shall provide detailed auto-turn analysis during the
civil construction permit approval process demonstrating clearly that large
trucks can negotiate the turn without driving onto the curb, crossing
ramps and landscape strip. If the review shows deficiency, the radius shall
be increased to accommodate the large vehicles and the site plan adjusted
accordingly.
vii. The Washington State Department of Transportation (WSDOT) provided
comments during the land-use approval process. Primarily, the
intersection of SE Petrovitsky Rd and Benson Rd/SR 515) lies within
WSDOT’s jurisdiction for channelization and intersection control
operations. An Intersection Control Evaluation shall be reviewed and
approved by WSDOT prior to issuance of the civil construction permit. Any
changes resulting from WSDOT’s review shall be implemented in the final
civil construction design. A reduction in lane additions or elimination of
the right-turn and acceleration lanes shall not preclude the need for the
full right-of-way dedication as required in the sections above and below
for the programmed implementation of the corridor safety project in the
future.
b. 108th Ave SE (Benson Road/ SR 515) - is a Principal Arterial. Per King County
Assessor map, the existing half street ROW width on the site frontage is
approximately 45 feet. Per Renton Municipal Code (RMC) 4-6-060, the minimum
ROW width required on a six lane principal arterial is 113 feet.
i. In 2013, the City’s Transportation Division prepared a preliminary corridor
safety project to provide intersection improvements at the intersection of
SE Petrovitsky Rd and S Benson Dr (SR 515). The safety plans require
street frontage improvements that include an additional 11-feet wide
acceleration lane, a 0.5-foot wide curb, an 8-foot wide landscaped planter,
a 12-foot wide ped/ bike path, 2-foot clear area from back of the path to
the new ROW line, and a pedestrian refuge safety island. ROW
dedication of varying width is be required in front of parcel 2923059110 to
accommodate these frontage improvements. The Transportation Division
plan also includes driveway access for this parcel. ROW dedication and
street frontage improvements are required to be provided by the
developer.
ii. The applicant has provided a street section showing and labelling the
existing ROW line, centerline of ROW, ROW dedication, centerline of
pavement, pavement width, showing and labelling all the street frontage
elements and widths with the land use application. Staff concurs that this
street section generally meets the intention of the corridor safety project
and will review in detail during the civil construction permit process.
iii. The applicant shall provide detailed design and survey information for the
taper lane transition beyond the project’s northern extent past the
acceleration lane. The design information shall include connections and
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
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rebuilding of the existing sidewalks to provide safe transitions and
reconstruction of neighboring driveways meeting ADA requirements to the
extent that the taper lane matches to existing improvements.
iv. The access from 108th Ave SE will be restricted to right-in right-out only
access (no left turns). Signage shall be provided interior to the site
indicating right-turn out only.
v. The Washington State Department of Transportation (WSDOT) provided
comments during the land-use approval process. Primarily, the
intersection of SE Petrovitsky Rd and Benson Rd/SR 515) lies within
WSDOT’s jurisdiction for channelization and intersection control
operations. An Intersection Control Evaluation shall be reviewed and
approved by WSDOT prior to issuance of the civil construction permit. Any
changes resulting from WSDOT’s review shall be implemented in the final
civil construction design. A reduction in lane additions or elimination of
the right-turn and acceleration lanes shall not preclude the need for the
full right-of-way dedication as required in the sections above and below
for the programmed implementation of the corridor safety project in the
future.
2. The proposed intersection corridor safety improvements shall, at a minimum, require
the relocation of the traffic signal at the northeast corner of the SE Petrovitsky Rd/108th
Ave SE intersection.
a. The relocation will require that crosswalk striping and ADA upgrades be made to
the opposing intersections, including, but not limited to receiving ramps, push
button signals, underground conduits, utilities and junction boxes.
b. A pedestrian actuated signal to cross the exclusive right-turn lane shall be
installed between the sidewalk and pedestrian refuge island.
3. The applicant has requested a street modification in order to modify the ROW width
and/or street cross sections for 108th Ave SE and SE Petrovitsky Rd.
a. The City’s transportation group has determined and will support an alternative
standard to match the established standard street sections for 108th Ave SE, SE
Petrovitsky Rd and the intersection thereof as described in sections 1 & 2 above.
b. Therefore, staff is in support of the requested modification. The following are
conditions of the modification approval:
i. Alternative cross-sections as noted in sections 1 & 2 above shall be
implemented for the project pending final review and approval by City
Development Engineering, Transportation Department and WSDOT during
the civil construction permit approval process.
ii. In the event that, at this time, the WSDOT review and approval process
does not allow for the addition of the right-turn and acceleration lanes,
the project shall dedicate right-of-way as described in section 1 above for
the future programmed implementation of TIP Project #22-29. The traffic
signal shall be moved to a location conducive to accommodating the
addition of the right-turn and acceleration lanes.
4. On and off-site ADA (including the street frontages), curbing, sidewalk and parking
lot/drive-aisle improvements will be reviewed in conjunction with the civil construction
permit for the project and will require a grading plan consisting of spot elevations and
slopes showing that ADA and City specifications are being met.
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5. Property corner dedication meeting City code shall be provided.
6. Street lighting and street trees are required to meet current city standards. Final
lighting plans are required to be submitted with the civil construction permit application
and will be reviewed during the construction utility permit review.
7. Undergrounding of all existing and proposed utilities is required on all frontages per
RMC 4-6-090.
8. Paving and trench restoration will comply with the City’s Trench Restoration and
Overlay Requirements.
9. Refer to City code 4-4-080 regarding driveway regulations. Driveways shall be designed
in accordance with City standard plans 104.4 and 104.5.
a. The maximum width of any driveway shall not exceed 30-feet.
i. The driveways as shown on the preliminary engineering plans consisting of
curved radii entrances and exits do not meet City standard driveway
requirements. Final driveway configuration shall meet City standards and
will be reviewed and approved during the civil construction permit approval
process.
b. Driveways shall be located a minimum of 5-feet from property lines.
c. Maximum driveway slope is 8%
10. Parking lot construction shall be in accordance with City code 4-4-80 (G).
11. A traffic impact analysis dated October 4, 2022 was provided by TENW. The site
generated traffic volumes were calculated using data from the Institute of
Transportation Engineers (ITE) Trip Generation Manual, 11th Edition, (2021). The
analysis determined vehicular traffic generated from a proposed development exceeds
20 vehicles per hour in either the AM (6:00 – 9:00) or PM (3:00 – 6:00) peak periods and
provided a discussion on traffic circulation to and from the site and onsite traffic
circulation.
a. Based on the calculations provided, the proposed development would average
1,085 new daily vehicle trips. Weekday peak hour AM trips would generate 71
new vehicle trips, with 34 vehicles leaving and 37 vehicles entering the site.
Weekday peak hour PM trips would generate 104 new vehicle trips, with 52
vehicles entering and 52 vehicles exiting the site. As detailed in the report the
proposed project is not expected to lower the levels of service of the surrounding
intersections included in the traffic study.
i. Increased traffic created by the development will be mitigated by payment
of transportation impact fees, frontage and intersection improvements as
noted in sections 1 & 2 above, and access improvements as noted in
section 1 above.
b. Washington State Department of Transportation (WSDOT) provided comments on
the traffic impact analysis on January 5, 2023.
i. A revised traffic impact analysis addressing the WSDOT comments shall be
submitted to the City and WSDOT at the civil construction permit
application for review and approval. Additional mitigation may be
warranted as a result of the revised analysis.
ii. An Intersection Control Evaluation to be reviewed and approved by
WSDOT is required prior to issuance of the civil construction permit.
iii. WSDOT approval of all channelization and intersection improvements is
required prior to issuance of the civil construction permit.
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GENERAL COMMENTS
1. All existing and proposed utility lines and poles (i.e. power, electrical, phone, and cable
services, etc.) along property frontage and within the site must be underground. The
construction of these franchise utilities must be inspected and approved by a City of
Renton inspector.
2. Maximum exposed retaining wall height is 6-ft and shall be setback a minimum of 3-ft
from the right-of-way as outlined in RMC 4-4-040 – Fences, Hedges and Retaining Walls.
3. Adequate separation between utilities as well as other features shall be provided in
accordance with code requirements.
a. 7-ft minimum horizontal and 1-ft vertical separation between storm and other
utilities is required with the exception of water lines which require 10-ft horizontal
and 1.5-ft vertical.
b. The stormwater line should be minimum 5 feet away from any other structure or
wall or building.
c. Trench of any utility should not be in the zone of influence of the retaining wall or
of the building.
4. All civil construction permits for utility and street improvements will require separate plan
submittals. All utility plans shall confirm to the Renton Drafting Standards. A licensed Civil
Engineer shall prepare the civil plans. Please visit the Development Engineering Forms
page for the most up-to-date plan submittal requirements:
http://rentonwa.gov/business/default.aspx?id=42473
5. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on
separate sheets.
6. Fees quoted in this document reflect the fees applicable in the year 2023 only and will be
assessed based on the fee that is current at the time of the permit application or issuance,
as applicable to the permit type. Please visit www.rentonwa.gov for the current
development fee schedule.
7. A demo permit is required for the demolition of the existing buildings. The demo permit
shall be acquired through the building department.
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DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Project Location Map
SR_TA_Benson_Petro_HEX_FINAL
A. REPORT TO THE HEARING EXAMINER
Hearing Date: February 28, 2023
Project File Number: PR22-000345
Project Name: TA Benson Petro, LLC
Land Use File Number: LUA22-000424, SA-H, ECF, MOD, MOD
Project Manager: Jill Ding, Senior Planner
Owner/Applicant: TA Benson Petro, LLC, 2600 Dallas Parkway, Suite, 370, Frisco, TX 75034
Contact: Alicia Baker, Tekin & Associates, LLC, 2600 Dallas Parkway, Suite 370, Frisco, TX
75034
Project Location: 17426 Benson Dr SE, 10828 & 10810 SE Petrovitsky Rd
Project Summary: The applicant is requesting Hearing Examiner Site Plan Review, Environmental
(SEPA) Review, a Parking Modification, and a Street Standards Modification for the
construction of a new 4,088 sq. ft. convenience store, a 2,900 sq. ft. gas station
canopy, and a 2,850 sq. ft. bank. The project site is comprised of three (3) parcels
totaling approximately 72,980 sq. ft. (1.68 acres) in area and is located within the
Commercial Arterial (CA) zone and Urban Design District D. Access to the site is
proposed via one curb cut off of Benson Dr. SE/108th Ave SE and one curb cut off of
SE Petrovitsky Rd. Surface parking is proposed for 44 parking spaces. A parking
modification was requested to exceed the maximum number of parking spaces
permitted. A street standards modification was requested to vary from the code
required frontage improvements and instead comply with alternative plans that
have been adopted by the Transportation Division for the Benson/108th and
Petrovitsky frontages. Slopes with grades less than 25% are mapped on the
northeast corner of the project site. No other critical areas are mapped onsite.
Site Area: 1.68 acres
EXHIBIT 16
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 2 of 46
SR_TA_Benson_Petro_HEX_FINAL
B. EXHIBITS:
Exhibits 1-15: As shown in the Environmental Review Committee (ERC) Report
Exhibit 16: Staff Report to the Hearing Examiner
Exhibit 17: SEPA Determination of Non-Significance-Mitigated
Exhibit 18: Conceptual Lot Line Adjustment Layout
Exhibit 19: Street Modification Justification
Exhibit 20: Tree Retention and Tree Credit Worksheet
Exhibit 21: Arborist Report
Exhibit 22: Parking Analysis
Exhibit 23: Parking Modification Justification
Exhibit 24: Water Availability
Exhibit 25: Sewer Availability
Exhibit 26: Transportation Concurrency
C. GENERAL INFORMATION:
1. Owner(s) of Record: TA Benson Petro, LLC
2600 Dallas Parkway, Suite, 370
Frisco, TX 75034
2. Zoning Classification: Commercial Arterial (CA)
Urban Design District D
3. Comprehensive Plan Land Use Designation: Commercial Mixed Use (CMU)
4. Existing Site Use: The project site is developed with a former King County
Fire Station.
5. Critical Areas: Slopes with grades less than 25% are mapped on the
northeast corner of the project site, which are not
regulated as critical areas.
6. Neighborhood Characteristics:
a. North: Church Use, R-14 zone
b. East: Medical Office Use, CA zone
c. South: Office and Retail Uses, CA zone
d. West: Retail Use, CA zone
7. Site Area: 1.68 acres
D. HISTORICAL/BACKGROUND:
Action Land Use File No. Ordinance No. Date
Comprehensive Plan N/A 5758 06/22/2015
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 3 of 46
SR_TA_Benson_Petro_HEX_FINAL
Zoning N/A 5758 06/22/2015
Annexation N/A 5327 03/01/2008
E. PUBLIC SERVICES:
1. Existing Utilities
a. Water: The project site is located within the water service area of the Soos Creek Water and Sewer
District.
b. Sewer: The project site is located within the sewer service area of the Soos Creek Water and Sewer
District.
c. Surface/Storm Water: The site is located within the Black River – Panther Creek Drainage Basin. There
is an existing unmapped conveyance system located on the 3 parcels that connect to the City’s
conveyance system in SE Petrovitsky Rd and 108th Ave SE. There is an existing 12-inch stormwater
main in SE Petrovitsky Rd south of the subject property frontage located along the north flowline of
the existing roadway that flows from east to west into the intersection and continues north along
108th Ave SE.
2. Streets: The project site fronts SE Petrovitsky Road (176th St SE) along the southern property line. SE
Petrovitsky Road is a five lane Principal Arterial. Per the King County Assessor map, the existing half-street
ROW width on the site frontage is approximately 30 feet and contains flush 8’ sidewalks on both sides.
The project site fronts 108th Ave SE (Benson Road/ SR 515) along the western property line. 108th Ave SE
is a six-lane Principal Arterial. Per the King County Assessor map, the existing half-street ROW width on
the site frontage is approximately 45 feet and contains flush 8’-sidewalks on both sides.
3. Fire Protection: Renton Regional Fire Authority (RRFA)
F. APPLICABLE SECTIONS OF THE RENTON MUNICIPAL CODE:
1. Chapter 2 Land Use Districts
a. Section 4-2-020: Purpose and Intent of Zoning Districts
b. Section 4-2-060: Zoning Use Table – Uses Allowed in the Zoning Designations
c. Section 4-2-120: Commercial Development Standards
2. Chapter 3 Environmental Regulations and Overlay Districts
a. Section 4-3-100: Urban Design Regulations
3. Chapter 4 City-Wide Property Development Standards
4. Chapter 6 Streets and Utility Standards
a. Section 4-6-060: Street Standards
5. Chapter 9 Permits – Specific
a. Section 4-9-200: Master Plan and Site Plan Review
b. Section 4-9-070: Environmental Review Procedures
c. Section 4-9-250: Variances, Waivers, Modifications, and Alternates
6. Chapter 11 Definitions
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 4 of 46
SR_TA_Benson_Petro_HEX_FINAL
G. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN:
1. Land Use Element
H. FINDINGS OF FACT (FOF):
1. The Planning Division of the City of Renton accepted the above master application for review on December
21, 2022 and determined the application complete on December 22, 2022. The project complies with the
120-day review period.
2. The project site is located at 17426 Benson Dr SE, 10828 & 10810 SE Petrovitsky Rd.
3. The project site is developed with a former King County Fire Station.
4. Access to the site would be provided via one curb cut off of SE Petrovitsky Rd and one curb cut off of
Benson Dr SE.
5. The property is located within the Commercial & Mixed Use (CMU) Comprehensive Plan land use
designation.
6. The site is located within the Commercial Arterial (CA) zoning classification and within Design District D.
7. There are approximately eight (8) trees located on-site, all trees are proposed for removal.
8. Slopes with grades less than 25% are mapped on the northeast corner of the project site, which are not
regulated as critical areas.
9. Approximately 5,000 cubic yards of material would be cut on-site and approximately 2,500 cubic yards of
fill is proposed to be brought into the site.
10. The applicant is proposing to begin construction in fall of 2023 and end in winter of 2024.
11. Staff received three agency comment letter(s) (Exhibit 14) during the 14 day public comment period. To
address agency comments, SEPA mitigation measures regarding soil contaimination and archeological
resources were adopted by the Environmental Review Committee (ERC) and staff has requested that the
applicant complete an Intersection Control Evaluation (ICE) per comments received from WSDOT.
12. Pursuant to the City of Renton's Environmental Ordinance and SEPA (RCW 43.21C, 1971 as amended), on
January 23, 2023 the Environmental Review Committee issued a Determination of Non-Significance -
Mitigated (DNS-M) for the TA Benson Petro project (Exhibit 17). The DNS-M included two (2) mitigation
measures. A 14-day appeal period commenced on January 23, 2023 and ended on February 6, 2023. No
appeals of the threshold determination have been filed.
13. Based on an analysis of probable impacts from the proposal, the Environmental Review Committee (ERC)
issued the following mitigation measures with the Determination of Non-Significance – Mitigated:
1. The applicant shall implement a contingency mitigation plan to address potential contaminated
soil or groundwater handling and disposal, hazardous waste operations, worker training, health
and safety, and potential contamination remediation.
2. An Inadvertent Discovery Plan (IDP) shall be implemented during project construction for any
archeological resources encountered on the project site.
14. Representatives from various city departments have reviewed the application materials to identify and
address issues raised by the proposed development. These comments are contained in the official file,
and the essence of the comments has been incorporated into the appropriate sections of this report and
the Departmental Recommendation at the end of this report.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 5 of 46
SR_TA_Benson_Petro_HEX_FINAL
15. Comprehensive Plan Compliance: The site is designated Commercial & Mixed Use (CMU) on the City’s
Comprehensive Plan Map. The purpose of the CMU designation is to transform strip commercial
development into business districts through the intensification of uses and with cohesive site planning,
landscaping, signage, circulation, parking, and the provision of public amenity features. The proposal is
compliant with the following development standards if all conditions of approval are met:
Compliance Comprehensive Plan Analysis
✓ Goal L-BB: Maintain a high quality of life as Renton grows by ensuring that new
development is designed to be functional and attractive.
✓ Goal L-FF: Strengthen the visual identity of Renton and its Community Planning Areas
and neighborhoods through quality design and development.
✓ Policy L-47: Accommodate change in a way that maintains Renton’s livability and
natural beauty.
✓
Policy L-51: Include human-scale features such as pedestrian pathways, quality
landscaping, and public spaces that have discernible edges, entries, and borders to
create a distinctive sense of place in neighborhoods, commercial areas, and centers.
✓
Policy L-56: Complement the built environment with landscaping using native,
naturalized, and ornamental plantings that are appropriate for the situation and
circumstance and provide for respite, recreation, and sun/shade.
✓ Policy L-60: Improve the appearance of parking lots through landscaping and
screening.
16. Zoning Development Standard Compliance: The purpose of the Commercial Arterial Zone (CA) is to
evolve from “strip commercial” linear business districts to business areas characterized by enhanced site
planning and pedestrian orientation, incorporating efficient parking lot design, coordinated access,
amenities and boulevard treatment with greater densities. The CA Zone provides for a wide variety of
retail sales, services, and other commercial activities along high-volume traffic corridors. Residential uses
may be integrated into the zone through mixed-use buildings. The zone includes the designated Automall
District. The proposal is compliant with the following development standards, as outlined in RMC 4-2-
120.A, if all conditions of approval are met:
Compliance CA Zone Develop Standards and Analysis
✓
Use: Retail sales, vehicle fueling stations, and on-site services are outright permitted
use within the CA zone.
Staff Comment: The proposal is for a new 4,088-sq. ft. convenience store, a 2,900-sq. ft.
gas station canopy, and a 2,850-sq. ft. bank. The convenience store would be considered
a retail use and the bank would be considered an on-site service. The proposed retail
sales, vehicle fueling station, and on-site service uses are permitted uses within the CA
zone.
N/A
Density: The minimum density required in the CA zone is 10.0 dwelling units per net
acre. The maximum density permitted is 60 dwelling units per net acre in the City
Center and Highlands Community Planning Areas and 30 dwelling units per net acre in
the East Plateau and Kennydale Community Planning Areas. Net density is calculated
after the deduction of sensitive areas, areas intended for public right-of-way, and
private access easements.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 6 of 46
SR_TA_Benson_Petro_HEX_FINAL
Staff Comment: Not applicable, no residential development is proposed.
✓
Lot Dimensions: The minimum lot size required in the CA zone is 5,000 sq. ft. There are
no minimum lot width or depth requirements.
Staff Comment: The project site is comprised of three (3) parcels totaling approximately
72,980 sq. ft. (1.68 acres) in area, which exceeds the minimum lot size of 5,000 sq. ft.
The applicant included a conceptual lot line adjustment layout (Exhibit 18) that
consolidates the three (3) lots into two (2) lots and reconfigures the lot lines that would
be created at a later date via a separate lot line adjustment application process for
future development. The future configuration would create a Parcel A, which would
include the convenience store and gas station canopy and would total 40,285 sq. ft.
(0.92 acres) and a Parcel B would include the bank and would total 32,724 sq. ft. (0.75
acres). The existing and future lot configurations would exceed the 5,000 sq. ft.
minimum lot size required in the CA zone.
Compliant if
condition of
approval is
met
Setbacks: The minimum front yard and secondary front yard setback is 15 ft. The
minimum setback may be modified through the site plan review process if it can be
demonstrated to the Administrator’s satisfaction that the following criteria are met:
i. The perceived scale of the proposed structure that is created by the reduced
setback is compatible with the abutting structures and the surrounding
neighborhood; and
ii. The required street frontage landscaping identified in RMC 4-4-070F1 is
increased to 15 feet along all public street frontages with the exception of
walkways, driveways, programmed pedestrian plazas, and the area of reduced
setback; and
iii. Enhanced landscaping, such as increased caliper size of trees, increased
container size of shrubs, and/or increased quantity or diversity of plantings, is
provided within the public right-of-way on the street frontage abutting the
reduced setback; and
iv. The project includes a public art installation, subject to review and approval,
with a minimum monetary value of one percent (1%) of the assessed value of
the proposed structure, or when the Administrator determines that it is
impractical to install public art on site, payment of a fee-in-lieu may be
approved in an amount of money approximating one percent (1%) of the
assessed value of the proposed structure; and
v. The design of the proposed structure complies with all of the following
requirements:
a) Back of house facilities such as walk-in freezers, bathrooms, breakrooms,
storage rooms, or other rooms that do not contain windows, are not
located along any building facade that fronts a public street; and
b) Floor to ceiling transparent windows are provided for at least fifty percent
(50%) of the ground floor building facade that fronts a reduced setback;
and
c) The proposed structure includes design features such as step-backs of
upper levels, changes in roof plane, and changes in roof form/slope in a
manner that serves to reduce the apparent bulk of the proposed structure;
and
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 7 of 46
SR_TA_Benson_Petro_HEX_FINAL
d) Canopies or similar design features are provided along any building facade
that fronts a public street, with emphasis provided to the primary entry;
and
e) Structured parking is not located along any building facade that fronts a
reduced setback.
Alternatively, the minimum setback may be modified through the site plan review
process if it can be demonstrated to the Administrator’s satisfaction that the reduced
setback would result in the protection and preservation of Priority One trees, as
identified in RMC 4-4-130H1b, that would otherwise not practicably be retained
without reduction of the minimum setback.
A maximum front yard and secondary front yard setback of 20 ft. is required. The
maximum setback may be modified through the site plan review process if the
applicant can demonstrate that the proposed development meets the following
criteria:
i. Orients development to the pedestrian through measures such as providing
pedestrian walkways beyond those required by the Renton Municipal Code
(RMC), encouraging pedestrian amenities, and supporting alternatives to
single-occupant vehicle (SOV) transportation; and
ii. Creates a low-scale streetscape through measures such as fostering distinctive
architecture and mitigating the visual dominance of extensive and unbroken
parking along the street front; and
iii. Promotes safety and visibility through measures such as discouraging the
creation of hidden spaces, minimizing conflict between pedestrian and vehicle
traffic, and ensuring adequate setbacks to accommodate required parking
and/or access that could not be provided otherwise.
Alternatively, the maximum setback requirement may be modified if the applicant can
demonstrate that the above criteria cannot be met by addressing the following criteria.
However, all the above criteria that can be met shall be addressed in the site
development plan.
i. Due to factors including but not limited to the unique site design requirements
or physical site constraints such as critical areas or utility easements, the
maximum setback cannot be met; or
ii. One (1) or more of the above criteria would not be furthered or would be
impaired by compliance with the maximum setback; or
iii. Any function of the use which serves the public health, safety, or welfare would
be materially-impaired by the required setback.
There are no minimum side or rear yard setbacks, except 15 feet. if the lot abuts or is
adjacent to a lot zoned residential.
Staff Comment: The existing project site has three (3) underlying parcels. The proposed
layout of the new buildings and site improvements would result in encroachments over
the existing lot lines, which would not comply with the required setbacks. The applicant
has submitted a proposed lot line adjustment plan (Exhibit 18) that includes the
consolidation and reconfiguration of the proposed lot lines to reduce the number of
existing lots from three (3) to two (2) and would remove the proposed encroachments
and would ensure associated parking and landscaping improvements are located on the
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 8 of 46
SR_TA_Benson_Petro_HEX_FINAL
same parcel as the associated building. Staff recommends, as a condition of approval,
that a lot line adjustment or lot consolidation be submitted for review and approval to
the Current Planning Project manager at the time of Building Permit review and
recorded prior to the issuance of a Temporary or Final Certificate of Occupancy for the
first building constructed on the project site.
The two (2) existing easternmost parcels abut a residential zone to the north; therefore
a 15-foot setback would be required along the north property line of these parcels. The
parcel located at the northeast corner of the intersection of Benson Dr S and SE
Petrovitsky does not abut a residential zone; therefore no side or rear setbacks would
apply to this parcel. The primary entrance of the proposed bank building would have a
minimum front setback of approximately 12 feet at the intersection of Benson Dr S and
SE Petrovitsky Rd, which is less than the minimum 15-foot setback required. A rear
setback of approximately 24 feet would be provided to the north property line and an
approximate 83-foot side yard setback would be provided from the reconfigured east
property line. The applicant did not include a request to modify the front yard setback
as part of the master application and an analysis to determine compliance with
modification criteria was not performed nor was there an informal discussion to
preceding the application submittal to determine whether a modification to the
minimum setback would be supported. Therefore, staff recommends as a condition of
approval that the site plan be revised to provide the minimum required 15-foot front
and secondary front yard setback between the proposed bank building and the
intersection of Benson Dr S and SE Petrovitsky Rd. The revised site plan shall be
submitted to the Current Planning Project Manager for review and approval at the time
of Construction Permit review.
The proposed convenience store would maintain the required 15-foot setback from SE
Petrovitsky Rd, with a rear setback of approximately 181 feet from the north property
line, a 15-foot side yard setback from the east property line, and an approximately 29-
foot side yard setback from the west property line. The proposed convenience store
location would comply with the setback requirements of the CA zone.
The proposed gas station canopy would maintain an approximately 154-foot front
setback from SE Petrovitsky Rd, an 80-foot rear setback from the north property line, a
54-foot side yard setback from the east property line, and a 35-foot side yard setback
from the reconfigured west property line. The proposed gas station canopy would be
located behind the convenience store and would therefore not be subject to the
maximum 20-foot front yard setback requirements of the CA zone. The proposed gas
station canopy would comply with the setback requirements of the CA zone.
✓
Building Standards: The CA zone has a maximum building coverage 65% of total lot
area or 75% if parking is provided within the building or within an on-site parking
garage. The maximum building height permitted is 50 ft., except 70 ft. if the building is
mixed use.
Staff Comment: The proposed buildings do not include parking within the building,
therefore the project site would be limited to a maximum building coverage of 65% of
the total lot area. The proposed bank building would have a footprint of 2,850 sq. ft.,
the convenience store would have a footprint of 4,188sq. ft., and the gas station canopy
would have a footprint of 2,900 sq. ft. resulting in a total building footprint of 9,838 sq.
ft. which would result in a building coverage of thirteen percent (13%) on the 72,980 sq.
ft. project site, which is less than the 65% building coverage permitted in the CA zone.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 9 of 46
SR_TA_Benson_Petro_HEX_FINAL
The proposed bank and convenience store buildings would be one story with a height
of just under 22 feet and the gas station canopy would have a maximum height of
approximately 20 feet. All proposed buildings would have heights less than the 50-foot
height limit required for buildings that are not part of a mixed-use development
proposal.
Compliant if
conditions of
approval are
met
Landscaping: The City’s landscape regulations (RMC 4-4-070) require a 10-foot
landscape strip along all public street frontages. Minimum planting strip widths
between the curb and sidewalk are established according to the street development
standards of RMC 4-6-060. Street trees and, at a minimum, groundcover shall be
planted within planting strips pursuant to the following standards, provided there shall
be a minimum of one street tree planted per lot.
a. Trees shall be selected from the City’s Approved Street Tree List based on the
width of the planting strip and the presence or lack of overhead power lines;
provided, the Administrator and City arborist shall each retain the right to
reject any proposed cultivar regardless of whether or not the cultivar is on the
City’s Approved Street Tree List.
b. Street trees shall have a minimum caliper of two inches (2"), and be planted
pursuant to the standards promulgated by the City, which may require root
barriers, structured soils, or other measures to help prevent tree roots from
damaging infrastructure.
c. Street trees shall be planted in the center of the planting strip between the
curb and the sidewalk at the following intervals; provided, that, where right-
of-way is constrained, irregular intervals and slight increases or decreases may
be permitted or required. Additionally, trees shall be planted in locations that
meet required spacing distances from facilities located in the right-of-way
including, but not limited to, underground utilities, street lights, utility poles,
traffic signs, fire hydrants, and driveways; such spacing standards are identified
in the City’s Approved Tree List. Generally, the following spacing is required:
i. Small-sized maturing trees: thirty feet (30') on center;
ii. Medium-sized maturing trees: forty feet (40') on center; and
iii. Large-sized maturing trees: fifty feet (50') on center.
All parking lots shall have perimeter landscaping as follows:
Such landscaping shall be at least ten feet (10') in width as measured from the street
right-of-way. Standards for planting shall be as follows:
a. Trees shall be two inches (2") in diameter at breast height (dbh) for multi-
family, commercial, and industrial uses at an average minimum rate of one
tree per thirty (30) lineal feet of street frontage.
b. Shrubs at the minimum rate of one per twenty (20) square feet of landscaped
area. Up to fifty percent (50%) of shrubs may be deciduous.
c. Ground cover in sufficient quantities to provide at least ninety percent (90%)
coverage of the landscaped area within three (3) years of installation.
Surface parking lots with more than fourteen (14) stalls shall be landscaped as follows:
Surface parking lots with between 15 and 50 spaces shall provide 15 sf of landscaping
per parking space, 51 and 99 spaces shall provide 25 sf of landscaping per parking
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 10 of 46
SR_TA_Benson_Petro_HEX_FINAL
space, and 100 or more spaces shall provide 35 sf of landscaping per parking space.
Any interior parking lot landscaping area shall be sized to dimensions of at least eight
feet (8') by twelve feet (12'). Landscaping shall be dispersed throughout the parking
area and shall include a mixture of trees, shrubs, and groundcover as follows:
a. Trees shall be two inches (2") in diameter at breast height (dbh) for multi-
family, commercial, and industrial uses. At least one tree for every six (6)
parking spaces within the lot interior shall be planted.
b. Shrubs at the minimum rate of one per twenty (20) square feet of landscaped
area shall be planted. Up to fifty percent (50%) of shrubs may be deciduous.
c. Ground cover shall be planted in sufficient quantities to provide at least ninety
percent (90%) coverage of the landscaped area within three (3) years of
installation.
d. There shall be no more than fifty feet (50') between parking stalls and an
interior parking lot landscape area.
All of the landscaped area that is not planted with trees and shrubs or covered with a
tree grate must be planted in ground cover plants, which may include grasses. Mulch
must be confined to areas underneath plants and is not a substitute for ground cover
plants.
Ground cover plants, other than grasses, must be at least the four-inch (4") pot size,
provided such plants have well-developed roots and are not root bound or J-rooted;
alternative standards may be applied pursuant to RMC 4-4-070C. Area planted in
ground cover plants, other than grass seed or sod, must be planted in triangular
spacing. Ground cover plants must be planted at a density that will cover the entire
area within three (3) years.
All shrubs must be of sufficient size and number to meet the required standards within
three (3) years of planting. Shrubs must be at least a two (2) gallon container size at
planting. Shrubs shall be in beds that include a layer of mulch at least two inches (2")
in depth.
Broadleaf trees must be a minimum of two-inch (2") caliper. Conifer trees at the time
of planting must be fully branched and a minimum of six feet (6') in height.
Except for trees with a tree grate, trees shall include a mulch ring that has a depth of
at least three inches (3") and is at least three feet (3') in radius around the tree.
When a Commercial Zoned Lot or Use Is Abutting a Residential Zone, a fifteen-foot (15')
wide partially sight-obscuring landscaped visual barrier, or ten-foot (10') wide fully
sight-obscuring landscaped visual barrier, is required along the common property line.
A permanent built-in irrigation system with an automatic controller shall be installed,
used, and maintained in working order in all landscaped areas.
Staff Comment: A Conceptual Landscape and Tree Retention Plan (Exhibit 3) was
submitted with the land use application materials. The submitted landscape plan
includes an eight foot-(8’)wide street tree planting strip along the site’s Benson Dr S and
SE Petrovitsky Rd frontages. The proposed landscape strip would be planted with pink
chimes Japanese Snowbell trees and lawn.
The submitted landscape plan includes a ten-foot (10’) onsite landscape strip along the
site’s Benson Dr S and SE Petrovitsky Rd street frontages. The ten-foot (10’) onsite
landscape strip is proposed to be vegetated with primarily lawn along the public
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 11 of 46
SR_TA_Benson_Petro_HEX_FINAL
sidewalk, which does not meet the requirements of the landscaping regulations to
include a mix of trees, shrubs, and ground cover. In addition, it appears that the
landscape plan does not reflect the most up to date floor plan for the convenience store
and the landscape proposed along the convenience store frontage would obscure the
primary building entrance as shown on the submitted architectural elevations (Exhibit
4).
The submitted landscape plan includes landscaping within the proposed surface parking
lot. Based the proposal for a total of 44 parking spaces on the project site, a total of 660
sq. ft. of interior parking lot landscaping would be required. The applicant indicates that
the proposal would include a total of 2,920 sq. ft. of interior parking lot landscaping,
which would exceed the minimum 660 sq. ft. required. However, it appears that the
applicant is counting areas towards the interior parking lot landscaping which do not
meet the minimum eight feet by twelve feet (8’ x 12') dimensional requirements and
that not all parking spaces are within 50 feet of an interior parking lot landscaped area
that complies with these requirements.
A fifteen-foot (15’) wide landscape strip is proposed along the north end of the eastern
two parcels, abutting the Residential-14 (R-14) zone. However, it does not appear that
the entire fifteen feet (15’) is fully- landscaped.
Staff recommends, as a condition of approval, that a detailed landscape plan be
submitted at the time of Construction Permit review for review and approval by the
Current Planning Project Manager, the detailed landscape plan shall include, but not be
limited to:
a. A 10-foot onsite landscape strip along all street frontages incorporating a mix
of trees, shrubs, and ground cover, the portion of the street frontage
landscaping abutting the surface parking lot should be planted with primarily
evergreen trees and shrubs to provide a year round screen;
b. A revised layout of the street frontage landscaping to accommodate the correct
floor plan and main entrance for the convenience store;
c. Interior parking lot landscaping (i.e. tree islands with a minimum dimension of
eight feet by twelve feet (8’ x 12') at a rate of 15 sq. ft. per parking space
throughout the entire project site, interior lot landscaping that does not meet
this standards will not be credited toward the minimum required;
d. No parking space shall be more than 50 feet from an interior parking lot
landscaped tree island;
e. Trees shall be two inches (2") in diameter at breast height (dbh). At least one (1)
tree for every six (6) parking spaces within the parking lot interior shall be
planted and around the parking lot perimeter trees shall be planted at the
average minimum rate of one tree per 30 lineal feet of street frontage;
f. Shrubs at the minimum rate of one per 20 square feet of landscaped area shall
be planted. Up to fifty percent (50%) of shrubs may be deciduous;
g. Ground cover shall be planted in sufficient quantities to provide at least ninety
percent (90%) coverage of the landscaped area within three (3) years of
installation;
h. The entire fifteen-foot (15’) wide landscape strip along the Residential-14 (R-14)
zone shall be landscaped;
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 12 of 46
SR_TA_Benson_Petro_HEX_FINAL
i. The proposed plant palate shall be revised to replace Leyland cypress and
juniper species with native evergreen trees and shrubs (i.e. western red cedar,
Douglas fir, western hemlock, and/or Oregon grape).
Compliant if
condition of
approval is
met
Tree Retention: The City’s adopted Tree Retention and Land Clearing Regulations (4-4-
130) require the retention of 30 percent of trees in a commercial development. Tree
credit requirements shall apply at a minimum rate of thirty (30) credits per net acre.
Significant trees shall be retained in the following priority order:
Priority One: Landmark trees; significant trees that form a continuous canopy;
significant trees on slopes greater than twenty percent (20%); significant trees adjacent
to critical areas and their associated buffers; and significant trees over sixty feet (60')
in height or greater than eighteen inches (18") caliper.
Priority Two: Healthy tree groupings whose associated undergrowth can be preserved;
other significant native evergreen or deciduous trees; and other significant non-native
trees.
Priority Three: Alders and cottonwoods shall be retained when all other trees have
been evaluated for retention and are not able to be retained, unless the alders and/ or
cottonwoods are used as part of an approved enhancement project within a critical
area or its buffer.
Staff Comment: A Conceptual Landscaping and Tree Retention Plan (Exhibit 3), Tree
Retention and Tree Credit Worksheet (Exhibit 20), and an Arborist report prepared by
Washington Forestry Consultants, dated December 13, 2022 (Exhibit 21) were
submitted with the project application materials. There are eight (8) significant trees
identified on the project site, none of the existing trees were proposed for retention.
The City’s Tree Retention Regulations require the retention of thirty percent (30%) of
existing significant trees. Out of the existing eight (8) significant trees, the applicant
would be required to retain two (2) trees (8 * 0.30 = 2.4 or 2 trees). There are three (3)
trees located on the north end of the project site and two (2) of these trees appear to
be viable for retention as the parking proposed at this location would exceed the
maximum number of parking stalls permitted on the project site (see Parking discussion
below). If these trees were retained, the proposal would be compliance with the City’s
adopted Tree Retention Regulations. Staff recommends, as a condition of approval that
a Final Tree Retention Plan be submitted at the time of Construction Permit review for
review and approval by the Current Planning Project Manager. The Final Tree Retention
Plan shall include the retention of the two existing healthy trees identified on the north
end of the project site, unless it is determined infeasible by the Current Planning Project
Manager.
The City’s Tree Retention Regulations also require that a minimum tree density of 30
credits per net acre. The submitted Tree Retention and Credit Worksheet (Exhibit 20)
concluded that 50 tree credits would be required on the project site. Tree Credit
requirements are proposed to be satisfied through the planting of 38 small species
trees, 42 medium species trees, and 7 large species trees. It appears that the 9 street
trees proposed to be planted within the public right-of-way were included in the small
species trees tree credit calculation, these trees would not count towards the sites tree
density requirements as these trees would be located off-site within the public right-of-
way. After the deduction of the street trees, the trees to be planted onsite would result
in a tree density of 63.25 credits (29 small species trees at 0.25 credits per tree + 42
medium species trees at 1 credit per tree + 7 large species trees at 2 credits per tree =
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 13 of 46
SR_TA_Benson_Petro_HEX_FINAL
63.25 credits), which exceeds the 50 tree credits required on the project site and would
satisfy the minimum tree density requirements.
Tree protection measures would be required during project construction in accordance
with RMC 4-4-130H.10, these measures would include the installation of a 6-foot high
chain link fence as well as signage identifying the trees as protected. The Conceptual
Grading Plan (Exhibit 8) shows some grading along the east property line abutting some
existing Douglas fir trees. To ensure that these trees are not damaged during project
construction, staff recommends, as a condition of approval that an arborist be present
onsite during any grading around the root zone of on or offsite protected trees.
Compliant if
condition of
approval is
met
Refuse and Recycling: In retail developments, a minimum of five (5) square feet per
every one thousand (1,000) square feet of building gross floor area shall be provided
for recyclables deposit areas and a minimum of ten (10) square feet per one thousand
(1,000) square feet of building gross floor area shall be provided for refuse deposit
areas. A total minimum area of one hundred (100) square feet shall be provided for
recycling and refuse deposit areas.
In office, educational and institutional developments, a minimum of two (2) square feet
per every one thousand (1,000) square feet of building gross floor area shall be
provided for recyclables deposit areas and a minimum of four (4) square feet per one
thousand (1,000) square feet of building gross floor area shall be provided for refuse
deposit areas. A total minimum area of one hundred (100) square feet shall be provided
for recycling and refuse deposit areas.
Outdoor refuse and recyclables deposit areas and collection points shall not be located
within fifty feet (50') of a lot zoned residential , except by approval through the site
development plan review process, or through the modification process if exempt from
site development plan review..
Staff Comment: The proposed bank building would have an area of 2,850 sq. ft. and the
convenience store would have an area of 4,188 sq. ft. The proposed bank building would
be required to provide 6 sq. ft. of recyclable deposit areas and 12 sq. ft. of refuse deposit
area or a total minimum of 100 sq. ft. of refuse and recycling deposit areas. The
proposed site plan (Exhibit 2) includes an approximately 160 sq. ft. service area for the
proposed bank building, which would exceed the 100 sq. ft. minimum requirement.
The proposed convenience store would be required to provide 21 sq. ft. of recyclable
deposit areas and 42 sq. ft. of refuse deposit areas or a total minimum area of 100 sq.
ft. of refuse and recycling deposit areas. The proposed site plan includes an
approximately 330 sq. ft. service area for the proposed convenience store, which would
exceed the minimum 100 sq. ft. requirement.
The location of the service areas is at the north end of the project site, approximately
15 feet from a residentially-zoned property and appears to be over the future proposed
property line. The proposed location would be acceptable, as the proposed nearby
residential zone is developed with a church and is not developed with a residential use.
However, the service area would not be permitted to be built over the future property
line. Staff recommends, as a condition of approval that the refuse and recyclable
deposit areas be amended such that they would not be located over the proposed future
property line. A revised site plan showing the amended refuse and recyclable deposit
areas shall be submitted at the time of Construction Permit review for review and
approval by the Current Planning Project Manager.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 14 of 46
SR_TA_Benson_Petro_HEX_FINAL
✓
Vehicular Access: A connection shall be provided for site-to-site vehicle access ways,
where topographically feasible, to allow a smooth flow of traffic across abutting CA lots
without the need to use a street. Access may comprise the aisle between rows of
parking stalls but is not allowed between a building and a public street.
Staff Comment: The proposal would include a lot line adjustment and lot consolidation
at a future date. The future lot lines noted on the submitted site plan (Exhibit 2) would
allow for site to site vehicular access between the bank building and convenience store
sites. There are existing landscaped barriers between the existing project site and the
abutting properties to the west and north that would preclude vehicular access to these
sites.
Compliant if
modification
is approved
Parking: Parking regulations require that retail sales provide a minimum and maximum
of 2.5 spaces per 1,000 square feet of net floor area. Bank uses require a minimum of
2.5 spaces per 1,000 square feet of net floor area and are permitted a maximum of 5.0
spaces per 1,000 square feet of net floor area. For uses with a drive-through (drive-
through ATM), the drive-through facility shall be so located that sufficient on-site
vehicle stacking space is provided for the handling of motor vehicles using such facility
during peak business hours. Typically 5.0 stacking spaces per window are required
unless otherwise determined by the Administrator. Stacking spaces cannot obstruct
required parking spaces or ingress/egress within the site or extend into the public right-
of-way.
Standard parking stall dimensions are 9 feet by 20 feet, compact stall dimensions are 8
½ feet by 16 feet. Compact spaces shall not account for more than thirty percent (30%)
of all onsite parking spaces. For parking lots with 300-400 parking spaces, a total of
eight (8) of those spaces shall be designated as Accessible per the Americans with
Disabilities Act (ADA).
Staff Comment: According to the submitted site plan (Exhibit 2), the proposed bank
building would have an area of 2,850 sq. ft. and the convenience store would have an
area of 4,188 sq. ft. Based on a total floor area of 2,850 sq. ft. for the bank use, the
proposal would be required to provide a minimum of seven (7) spaces and would be
permitted a maximum of fourteen (14) spaces. Based on a total floor area of 4,188 sq.
ft. for the retail use (convenience store), the proposal would be required to provide a
minimum and a maximum of 10 spaces. A total of 17 minimum parking spaces would
be required and a maximum of 24 parking spaces would be permitted for the proposed
entire project. The submitted site plan includes a total of 44 parking spaces (19 spaces
would be on the bank parcel and 25 spaces would be on the convenience store parcel),
which would exceed the maximum total of 24 spaces permitted on the project site. The
applicant submitted a Parking Analysis (Exhibit 22) and a Parking Modification request
(Exhibit 23) justifying the additional parking provided. See further parking modification
discussion below under FOF 18.
The proposed site plan (Exhibit 2) include the five (5) minimum required stacking spaces
for the drive-through ATM. In addition, the site plan (Exhibit 2) included stall dimensions
and aisle widths. The standard stalls would have a width of nine feet (9’) and a depth
of 20 feet, the compact stalls would have a width if eight feet, 6 inches (8’-6”) and a
depth of 16 feet, and the minimum proposed aisle width would be 24 feet. The proposed
parking spaces would comply with the dimensional requirements outlined in the
Parking Regulations.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 15 of 46
SR_TA_Benson_Petro_HEX_FINAL
Compliant if
condition of
approval is
met.
Bicycle Parking: The number of bicycle parking spaces shall be equal to ten percent
(10%) of the number of required off-street vehicle parking spaces.
Bicycle parking facilities shall include a rack that is permanently affixed to the ground
and supports the bicycle at two (2) or more points, including at least one point on the
frame. The user shall be able to lock the bicycle with a U-shaped lock or cable lock.
Bicycle racks that only support a bicycle front or rear wheel are not permitted. Bicycle
racks shall be installed to provide adequate maneuvering space and ensure that the
requisite number of bicycle parking spaces remain accessible; and
Each bicycle parking space shall be at least two feet (2') by six feet (6'), with no less
than an overhead clearance of seven feet (7'). A maneuvering area of five feet (5') shall
separate rows of bicycle parking spaces. Where the bicycle parking is abutting the
sidewalk, only the maneuvering area may extend into the right-of-way.
Areas set aside for bicycle parking shall be clearly marked and reserved for bicycle
parking only.
Bicycle parking shall not impede or create a hazard to pedestrians or vehicles. Parking
areas shall be located so as to not conflict with vehicle vision clearance standards.
Bicycle parking shall be conveniently located with respect to the street right-of-way
and must be within fifty feet (50') of at least one main building entrance, as measured
along the most direct pedestrian access route.
Whenever possible, bicycle parking shall be incorporated into the building design and
coordinate with the design of the street furniture when it is provided.
Bicycle parking shall be visible to cyclists from street sidewalks or building entrances,
so that it provides sufficient security from theft and damage.
Bicycle parking shall be at least as well lit as vehicle parking for security.
Staff Comment: Based on a minimum requirement for 17 total parking spaces noted
above, a total of two (2) bicycle parking spaces would be required for the proposed
project. An eight foot by eight foot (8’ x 8’) bicycling parking area is identified on the
submitted site plan (Exhibit 2), however a detail of the bicycle parking was not provided.
To ensure compliance with the bicycle parking requirements, staff recommends, as a
condition of approval that a bicycle parking detail be submitted at the time of Building
Permit Review for review and approval by the Current Planning Project Manager
demonstrating that the proposal would comply with the bicycle parking requirements
as required in RMC 4-4-080F.11.
N/A
Fences and Retaining Walls: A maximum of eight feet (8') anywhere on the lot provided
the fence, retaining wall or hedge does not stand in or in front of any required
landscaping or pose a traffic vision hazard.
There shall be a minimum three-foot (3') landscaped setback at the base of retaining
walls abutting public rights-of-way.
Staff Comment: No fences or retaining walls were shown on the submitted site plan
application materials. Any proposed fences or retaining walls would be required to
comply with the above standards.
Compliant if
conditions of
Screening and Storage: All on-site surface mounted utility equipment shall be screened
from public view. Screening shall consist of equipment cabinets enclosing the utility
equipment, solid fencing or a wall of a height at least as high as the equipment it
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 16 of 46
SR_TA_Benson_Petro_HEX_FINAL
approval are
met
screens, or a landscaped visual barrier allowing for reasonable access to equipment.
Equipment cabinets, fencing, and walls shall be made of materials and/or colors
compatible with building materials.
All operating equipment located on the roof of any building shall be enclosed so as to
be screened from public view.
Outdoor storage must be screened from adjacent or abutting properties and public
rights-of-way. Outdoor storage uses shall provide sight-obscuring fences or solid walls
a minimum of six feet (6') in height, berming, and/or landscaping as determined by the
Administrator to achieve adequate visual or acoustical screening.
Staff Comment: Any proposed surface mounted or rooftop mounted utility equipment
shall be screened from public view. Staff was unable to determine if new surface or roof
mounted utility equipment is proposed. Staff recommends, as a condition of approval
that a screening detail be provided for any proposed surface or roof mounted utility
equipment be submitted to the Current Planning Project Manager for review and
approval. The screening detail for surface mounted utility equipment that includes cross
sections of the utility and screening shall be provided at the time of Construction Permit
review and the screening detail for any roof-mounted utility equipment shall be
provided at the time of Building Permit review.
17. Design Standards: The project site is located within Design District ‘D’. The following table contains project
elements intended to comply with the standards of the Design District ‘D’ Standards and guidelines, as
outlined in RMC 4-3-100.E:
Compliance Design District Guideline and Standard Analysis
1. SITE DESIGN AND BUILDING LOCATION:
Intent: To ensure that buildings are located in relation to streets and other buildings so that the Vision
of the City of Renton can be realized for a high-density urban environment; so that businesses enjoy
visibility from public rights-of-way; and to encourage pedestrian activity.
a. Building Location and Orientation:
Intent: To ensure visibility of businesses and to establish active, lively uses along sidewalks and
pedestrian pathways. To organize buildings for pedestrian use and so that natural light is available to
other structures and open space. To ensure an appropriate transition between buildings, parking areas,
and other land uses; and increase privacy for residential uses.
Guidelines: Developments shall enhance the mutual relationship of buildings with each other, as well
as with the roads, open space, and pedestrian amenities while working to create a pedestrian oriented
environment. Lots shall be configured to encourage variety and so that natural light is available to
buildings and open space. The privacy of individuals in residential uses shall be provided for.
✓
Standard: The availability of natural light (both direct and reflected) and direct sun
exposure to nearby buildings and open space (except parking areas) shall be
considered when siting structures.
Staff Comment: The proposed structures would be one story with heights of 22 feet
and 20 feet and are not anticipated to adversely impact sun exposure to open spaces
or nearby buildings.
✓ Standard: Buildings shall be oriented to the street with clear connections to the
sidewalk.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 17 of 46
SR_TA_Benson_Petro_HEX_FINAL
Staff Comment: As shown on the submitted architectural elevations (Exhibits 4 & 5),
the primary façade of the bank building and convenience store would be oriented
towards the public street. As shown on the submitted site plan (Exhibit 2) clear
connections would be provided between the primary building entries and the public
sidewalk.
✓
Standard: The front entry of a building shall be oriented to the street or a landscaped
pedestrian-only courtyard.
Staff Comment: The primary façade of the convenience store would be oriented
towards SE Petrovitsky Rd and the primary entrance of the bank would be oriented
towards the public plaza proposed at the intersection of Benson Dr S and SE Petrovitsky
Rd.
N/A
Standard: Buildings with residential uses located at the street level shall be:
a. Set back from the sidewalk a minimum of ten feet (10') and feature substantial
landscaping between the sidewalk and the building; or
b. Have the ground floor residential uses raised above street level for residents’
privacy.
Staff Comment: Not applicable, no residential uses are proposed under this application.
b. Building Entries:
Intent: To make building entrances convenient to locate and easy to access, and ensure that building
entries further the pedestrian nature of the fronting sidewalk and the urban character of the district.
Guidelines: Primary entries shall face the street, serve as a focal point, and allow space for social
interaction. All entries shall include features that make them easily identifiable while reflecting the
architectural character of the building. The primary entry shall be the most visually prominent entry.
Pedestrian access to the building from the sidewalk, parking lots, and/or other areas shall be provided
and shall enhance the overall quality of the pedestrian experience on the site.
✓
Standard: A primary entrance of each building shall be located on the facade facing a
street, shall be prominent, visible from the street, connected by a walkway to the
public sidewalk, and include human-scale elements.
Staff Comment: The convenience store’s primary façade would be oriented toward SE
Petrovitsky Road with direct pedestrian sidewalk access to the building’s primary entry.
Storefront entry doors with coordinated glazing, transoms and articulations will wrap
the SW corner of the building providing visibility from both SE Petrovitsky Rd and the
intersection of SE Petrovitsky Rd and Benson Dr S. Parapet heights at the SW corner,
weather protection (canopies), area and accent lighting and signage will also help to
define the primary entry.
The proposed bank would have its primary facade oriented towards the public plaza
proposed at the intersection of SE Petrovitsky Rd and Benson Dr S. The bank’s primary
façade would include storefront entry doors and glazing, flatwork, landscaping and
street/plaza amenities to enhance pedestrian access from the street corner plaza while
maintaining high visibility from the street, creating a safe and attractive environment
for pedestrians and users of the street corner plaza.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 18 of 46
SR_TA_Benson_Petro_HEX_FINAL
✓
Standard: A primary entrance of each building shall be made visibly prominent by
incorporating architectural features such as a facade overhang, trellis, large entry
doors, and/or ornamental lighting.
Staff Comment: As shown on the proposed building elevations (Exhibits 4 & 5), the
proposed primary building entrance of the convenience store and bank would be made
visibly prominent through the incorporation of storefront entry doors, glazing,
overhead weather protection and an increased parapet height over the entrance.
Compliant if
condition of
approval is
met
Standard Building entries from a street shall be clearly marked with canopies,
architectural elements, ornamental lighting, or landscaping and include weather
protection at least four and one-half feet (4-1/2') wide (illustration below). Buildings
that are taller than thirty feet (30') in height shall also ensure that the weather
protection is proportional to the distance above ground level.
Staff Comment: Building entries for both the convenience store and bank would be
clearly marked with lighting, landscaping, and weather protection. The architectural
elevations (Exhibit 4) for the proposed convenience store specify that the proposed
weather protection would comply with the four and one-half feet (4-1/2') width
requirement. There were no dimensions included on the weather protection proposed
for the bank building. Staff recommends as a condition of approval, that architectural
elevations be submitted at the time of building permit review including weather
protection with a minimum width of four and one-half feet (4-1/2') or the applicant
shall demonstrate compliance with the guideline of this section. The architectural
elevations shall be submitted to the Current Planning Project Manager for review and
approval.
✓
Standard: Building entries from a parking lot shall be subordinate to those related to
the street.
Staff Comment: As shown on the submitted architectural elevations (Exhibits 4 & 5) the
building entries facing the parking lot would be subordinate to the primary entrances
facing the street.
✓
Standard: Features such as entries, lobbies, and display windows shall be oriented to
a street or pedestrian-oriented space; otherwise, screening or decorative features
should be incorporated.
Staff Comment: As discussed above, the proposed primary building entries for both the
bank and convenience store would be oriented towards Benson Dr S and SE Petrovitsky
Rd.
✓
Standard: Multiple buildings on the same site shall direct views to building entries by
providing a continuous network of pedestrian paths and open spaces that incorporate
landscaping.
Staff Comment: Both buildings would have primary entrances oriented towards the
public street and secondary entrances oriented to the onsite surface parking.
Pedestrian walkway connections are proposed around the proposed buildings to direct
pedestrians to the building entries, in addition, sidewalks would be constructed within
the public right-of-way along the Benson Dr S and SE Petrovitsky Rd frontages.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 19 of 46
SR_TA_Benson_Petro_HEX_FINAL
A conceptual landscape plan (Exhibit 3) was included with the application materials
that includes landscaping between the proposed buildings and the public right-of-way,
as well as within the surface parking lot.
N/A
Standard: Ground floor residential units that are directly accessible from the street
shall include entries from front yards to provide transition space from the street or
entries from an open space such as a courtyard or garden that is accessible from the
street.
Staff Comment: Not applicable, no residential dwelling units are proposed.
c. Transition to Surrounding Development:
Intent: To shape redevelopment projects so that the character and value of Renton’s long-established,
existing neighborhoods are preserved.
Guidelines: Careful siting and design treatment shall be used to achieve a compatible transition where
new buildings differ from surrounding development in terms of building height, bulk and scale.
✓
Standard: At least one of the following design elements shall be used to promote a
transition to surrounding uses:
1. Building proportions, including step-backs on upper levels in accordance with
the surrounding planned and existing land use forms; or
2. Building articulation to divide a larger architectural element into smaller
increments; or
3. Roof lines, roof pitches, and roof shapes designed to reduce apparent bulk and
transition with existing development.
Additionally, the Administrator may require increased setbacks at the side or rear of a
building in order to reduce the bulk and scale of larger buildings and/or so that sunlight
reaches adjacent and/or abutting yards.
Staff Comment: The proposed convenience store and bank buildings will break up
monolithic expanses of wall using fenestration, articulation, material and color
changes, varied base treatments/ textures and related landscaping and accent lighting
fixtures/ sconces. Various parapet heights are also proposed to break up and lessen
the apparent height and mass of the convenience store and bank buildings.
d. Service Element Location and Design:
Intent: To reduce the potential negative impacts of service elements (i.e., waste receptacles, loading
docks) by locating service and loading areas away from high-volume pedestrian areas, and screening
them from view in high visibility areas.
Guidelines: Service elements shall be concentrated and located so that impacts to pedestrians and
other abutting uses are minimized. The impacts of service elements shall be mitigated with landscaping
and an enclosure with fencing that is made of quality materials. Service areas not adjacent to streets,
pathways, or pedestrian-oriented spaces are encouraged to implement vegetative screening in addition
to or as part of service enclosures.
✓
Standard: Service elements shall be located and designed to minimize the impacts on
the pedestrian environment and adjacent uses. Service elements shall be
concentrated and located where they are accessible to service vehicles and
convenient for tenant use.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 20 of 46
SR_TA_Benson_Petro_HEX_FINAL
Staff Comment: See previous discussion above under FOF 16 Development Standards:
Refuse and Recycling. The proposed service area location would be far removed from
proposed pedestrian area.
Compliant if
condition of
approval is
met
Standard: In addition to standard enclosure requirements, garbage, recycling
collection, and utility areas shall be enclosed on all sides, including the roof and
screened around their perimeter by a wall or fence and have self-closing doors.
Staff Comment: A screening detail for the proposed service area was not included with
the submitted application materials. Staff recommends, as a condition of approval,
that garbage, recycling collection, and utility areas shall be enclosed on all sides,
including the roof and screened around their perimeter by a wall or fence and have
self-closing doors. A screening detail shall be submitted to the Current Planning Project
Manager at the time of Building Permit review for review and approval.
Compliant if
condition of
approval is
met
Standard: Service enclosures shall be made of masonry, ornamental metal or wood,
or some combination of the three (3).
Staff Comment: As previously discussed above, a service area screening detail was not
included with the submitted application materials. Staff recommends, as a condition
of approval that the proposed service area screening be comprised of masonry,
ornamental metal, wood, or some combination of the three (3).
✓
Standard: If the service area is adjacent to a street, pathway, or pedestrian-oriented
space, a landscaped planting strip, minimum 3 feet wide, shall be located on 3 sides of
such facility.
Staff Comment: As previously discussed above, the proposed service area location
would be far removed from proposed pedestrian area and would be screened from the
abutting property to the north with a fifteen-foot (15’) wide landscaped strip.
e. Gateways:
Intent: To distinguish gateways as primary entrances to districts or to the City, special design features
and architectural elements at gateways should be provided. While gateways should be distinctive
within the context of the district, they should also be compatible with the district in form and scale.
Guidelines: Service elements shall be concentrated and located so that impacts to pedestrians and
other abutting uses are minimized. The impacts of service elements shall be mitigated with landscaping
and an enclosure with fencing that is made of quality materials.
N/A
Standard: Developments located at district gateways shall be marked with visually
prominent features.
Staff Comment: Not applicable, the project site is not located at a district gateway.
N/A
Standard: Gateway elements shall be oriented toward and scaled for both pedestrians
and vehicles.
Staff Comment: Not applicable, the project site is not located at a district gateway.
N/A
Standard: Visual prominence shall be distinguished by two (2) or more of the
following:
a. Public art;
b. Special landscape treatment;
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 21 of 46
SR_TA_Benson_Petro_HEX_FINAL
c. Open space/plaza;
d. Landmark building form;
e. Special paving, unique pedestrian scale lighting, or bollards;
f. Prominent architectural features (trellis, arbor, pergola, or gazebo);
g. Neighborhood or district entry identification (commercial signs do not
qualify).
Staff Comment: Not applicable, the project site is not located at a district gateway.
2. PARKING AND VEHICULAR ACCESS:
Intent: To provide safe, convenient access to the Urban Center and the Center Village; incorporate
various modes of transportation, including public mass transit, in order to reduce traffic volumes and
other impacts from vehicles; ensure sufficient parking is provided, while encouraging creativity in
reducing the impacts of parking areas; allow an active pedestrian environment by maintaining
contiguous street frontages, without parking lot siting along sidewalks and building facades; minimize
the visual impact of parking lots; and use access streets and parking to maintain an urban edge to the
district.
a. Surface Parking:
Intent: To maintain active pedestrian environments along streets by placing parking lots primarily in
back of buildings.
Guidelines: Surface parking shall be located and designed so as to reduce the visual impact of the
parking area and associated vehicles. Large areas of surface parking shall also be designed to
accommodate future infill development.
✓
Standard: Parking shall be located so that no surface parking is located between:
a. A building and the front property line; and/or
b. A building and the side property line (when on a corner lot).
Staff Comment: There is no parking located between the proposed convenience store
and bank buildings and the public street.
✓
Standard: Parking shall be located so that it is screened from surrounding streets by
buildings, landscaping, and/or gateway features as dictated by location.
Staff Comment: The surface parking would be screened from surrounding streets by
the proposed convenience store and bank building and as previously discussed above
under FOF 16, Zoning and Development Standards Compliance: Landscaping, by a
minimum 10-foot wide, perimeter parking lot landscape strip would be required
around the surface parking lot.
b. Structured Parking Garages:
Intent: To promote more efficient use of land needed for vehicle parking; encourage the use of
structured parking; physically and visually integrate parking garages with other uses; and reduce the
overall impact of parking garages.
Guidelines: Parking garages shall not dominate the streetscape; they shall be designed to be
complementary with adjacent and abutting buildings. They shall be sited to complement, not
subordinate, pedestrian entries. Similar forms, materials, and/or details to the primary building(s)
should be used to enhance garages.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 22 of 46
SR_TA_Benson_Petro_HEX_FINAL
N/A
Standard: Parking structures shall provide space for ground floor commercial uses
along street frontages at a minimum of seventy five percent (75%) of the building
frontage width.
Staff Comment: Not appliable, no structured parking is proposed.
N/A
Standard: The entire facade must feature a pedestrian-oriented facade. The
Administrator of the Department of Community and Economic Development may
approve parking structures that do not feature a pedestrian orientation in limited
circumstances. If allowed, the structure shall be set back at least six feet (6') from the
sidewalk and feature substantial landscaping. This landscaping shall include a
combination of evergreen and deciduous trees, shrubs, and ground cover. This setback
shall be increased to ten feet (10') when abutting a primary arterial and/or minor
arterial.
Staff Comment: Not appliable, no structured parking is proposed.
N/A
Standard: Public facing facades shall be articulated by arches, lintels, masonry trim, or
other architectural elements and/or materials.
Staff Comment: Not appliable, no structured parking is proposed.
N/A
Standard: The entry to the parking garage shall be located away from the primary
street, to either the side or rear of the building.
Staff Comment: Not appliable, no structured parking is proposed.
N/A
Standard: Parking garages at grade shall include screening or be enclosed from view
with treatment such as walls, decorative grilles, trellis with landscaping, or a
combination of treatments.
Staff Comment: Not appliable, no structured parking is proposed.
N/A
Standard: The Administrator of the Department of Community and Economic
Development or designee may allow a reduced setback where the applicant can
successfully demonstrate that the landscaped area and/or other design treatment
meets the intent of these standards and guidelines. Possible treatments to reduce the
setback include landscaping components plus one or more of the following integrated
with the architectural design of the building:
a. Ornamental grillwork (other than vertical bars);
b. Decorative artwork;
c. Display windows;
d. Brick, tile, or stone;
e. Pre-cast decorative panels;
f. Vine-covered trellis;
g. Raised landscaping beds with decorative materials; or
h. Other treatments that meet the intent of this standard...
Staff Comment: Not appliable, no structured parking is proposed.
c. Vehicular Access:
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 23 of 46
SR_TA_Benson_Petro_HEX_FINAL
Intent: To maintain a contiguous and uninterrupted sidewalk by minimizing, consolidating, and/or
eliminating vehicular access off streets.
Guidelines: Vehicular access to parking garages and parking lots shall not impede or interrupt
pedestrian mobility. The impacts of curb cuts to pedestrian access on sidewalks shall be minimized.
N/A
Standard: Access to parking lots and garages shall be from alleys, when available. If
not available, access shall occur at side streets.
Staff Comment: Not applicable, there are no alleys or side streets abutting the project
site. One driveway access off SE Petrovitsky Rd and one driveway access off of Benson
Dr S is proposed.
✓
Standard: The number of driveways and curb cuts shall be minimized for vehicular
access purposes, so that pedestrian circulation along the sidewalk is minimally
impeded.
Staff Comment: One driveway access off SE Petrovitsky Rd and one driveway access
off of Benson Dr S is proposed, which would reduce the potential conflicts between
pedestrians and vehicles on and around the project site.
3. PEDESTRIAN ENVIRONMENT:
Intent: To enhance the urban character of development in the Urban Center and the Center Village by
creating pedestrian networks and by providing strong links from streets and drives to building
entrances; make the pedestrian environment safer and more convenient, comfortable, and pleasant to
walk between businesses, on sidewalks, to and from access points, and through parking lots; and
promote the use of multi-modal and public transportation systems in order to reduce other vehicular
traffic.
a. Pedestrian Circulation:
Intent: To create a network of linkages for pedestrians to improve safety and convenience and enhance
the pedestrian environment.
Guidelines: The pedestrian environment shall be given priority and importance in the design of projects.
Sidewalks and/or pathways shall be provided and shall provide safe access to buildings from parking
areas. Providing pedestrian connections to abutting properties is an important aspect of connectivity
and encourages pedestrian activity and shall be considered. Pathways shall be easily identifiable to
pedestrians and drivers.
✓
Standard: A pedestrian circulation system of pathways that are clearly delineated and
connect buildings, open space, and parking areas with the sidewalk system and
abutting properties shall be provided.
a. Pathways shall be located so that there are clear sight lines, to increase safety.
b. Pathways shall be an all-weather or appropriate permeable walking surface
material, unless the applicant can demonstrate that the proposed surface is
appropriate for the anticipated number of users and complementary to the
design of the development.
Staff Comment: The proposed site plan (Exhibit 2) includes pedestrian walkways
around the convenience store and bank buildings. The proposed walkway around the
bank would range in width from four feet (4’) to 8 feet, four inches (8’4”) and the
minimum walkway width around the convenience store is eight feet (8’). The proposed
sidewalks would be paved and would compliment the design of the development.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 24 of 46
SR_TA_Benson_Petro_HEX_FINAL
N/A
Standard: Pathways within parking areas shall be provided and differentiated by
material or texture (i.e., raised walkway, stamped concrete, or pavers) from abutting
paving materials. Permeable materials are encouraged. The pathways shall be
perpendicular to the applicable building facade and no greater than one hundred fifty
feet (150') apart.
Staff Comment: Not applicable, the proposed surface parking areas are less than 150
feet in width; therefore pedestrian walkways through the parking lot would not be
required.
✓
Standard: Sidewalks and pathways along the facades of buildings shall be of sufficient
width to accommodate anticipated numbers of users. Specifically:
a. Sidewalks and pathways along the facades of mixed use and retail buildings
100 or more feet in width (measured along the facade) shall provide sidewalks
at least 12 feet in width. The walkway shall include an 8-foot minimum
unobstructed walking surface.
b. Interior pathways shall be provided and shall vary in width to establish a
hierarchy. The widths shall be based on the intended number of users; to be
no smaller than five feet (5') and no greater than twelve feet (12').
c. For all other interior pathways, the proposed walkway shall be of sufficient
width to accommodate the anticipated number of users.
Staff Comment: The submitted site plan (Exhibit 2) denotes the locations of pedestrian
walkways around the proposed buildings. There are not buildings facades greater than
100 feet in length; therefore criterion ‘a’ above would not be applicable. The proposed
walkways would vary in width from a minimum of five feet (5’) to ten feet (10’) and
would be of an appropriate width for the anticipated number of users.
N/A Standard: Mid-block connections between buildings shall be provided.
✓
Standard: Permeable pavement pedestrian circulation features shall be used where
feasible, consistent with the Surface Water Design Manual.
Staff Comment: See stormwater discussion below under FOF 20 Site Plan Review
Criteria.
b. Pedestrian Amenities:
Intent: To create attractive spaces that unify the building and street environments and are inviting and
comfortable for pedestrians; and provide publicly accessible areas that function for a variety of year-
round activities, under typical seasonal weather conditions.
Guidelines: The pedestrian environment shall be given priority and importance in the design of projects.
Amenities that encourage pedestrian use and enhance the pedestrian experience shall be included.
✓
Standard: Architectural elements that incorporate plants, particularly at building
entrances, in publicly accessible spaces and at facades along streets, shall be provided.
Staff Comment: As shown on the submitted site plan and landscape plan (Exhibits 2 &
3, respectively), there is a public plaza proposed at the intersection of Benson and
Petrovitsky that would incorporate pedestrian amenities including benches, pavement
treatment, as well as landscaping. In addition, areas adjacent to primary building
entrances would incorporate weather protection, and landscaping.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 25 of 46
SR_TA_Benson_Petro_HEX_FINAL
Complaint if
condition of
approval is
met
Standard: Amenities such as outdoor group seating, benches, transit shelters,
fountains, and public art shall be provided.
a. Site furniture shall be made of durable, vandal- and weather-resistant
materials that do not retain rainwater and can be reasonably maintained over
an extended period of time.
b. Site furniture and amenities shall not impede or block pedestrian access to
public spaces or building entrances.
Staff Comment: A pedestrian plaza is proposed at the intersection of Benson and
Petrovitsky. There appears to be benches shown on the submitted landscape plan
(Exhibit 3) within the plaza area, however no site furniture details were included with
the submitted materials. Staff recommends, as a condition of approval, that proposed
amenity details, including outdoor seating should be provided at the time of
Construction Permit application for review and approval by the Current Planning
Project Manager. Site furniture shall be made of durable, vandal- and weather-
resistant materials that do not retain rainwater and can be reasonably maintained
over an extended period of time.
Compliant if
condition of
approval is
met
Standard: Pedestrian overhead weather protection in the form of awnings, marquees,
canopies, or building overhangs shall be provided. These elements shall be a minimum
of four and one-half feet (4-1/2') wide along at least seventy five percent (75%) of the
length of the building facade facing the street, a maximum height of fifteen feet (15')
above the ground elevation, and no lower than eight feet (8') above ground level.
Staff Comment: Overhead weather protection is proposed over the building entries and
along the street facing façades, however staff was unable to verify that the proposed
weather protection would comprise seventy five percent (75%) of the façade. Staff
recommends, as a condition of approval, that the applicant demonstrate that the
weather protection proposed comprise seventy five percent (75%) of the street facing
façades. A revised site plan and building elevations demonstrating compliance with
this requirement shall be submitted to the Current Planning Project Manager at the
time of Building Permit review for review and approval.
4. RECREATION AREAS AND COMMON OPEN SPACE:
Intent: To ensure that areas for both passive and active recreation are available to residents, workers,
and visitors and that these areas are of sufficient size for the intended activity and in convenient
locations. To create usable and inviting open space that is accessible to the public; and to promote
pedestrian activity on streets particularly at street corners.
Guidelines: Developments located at street intersections should provide pedestrian-oriented space at
the street corner to emphasize pedestrian activity (illustration below). Recreation and common open
space areas are integral aspects of quality development that encourage pedestrians and users. These
areas shall be provided in an amount that is adequate to be functional and usable; they shall also be
landscaped and located so that they are appealing to users and pedestrians
N/A
Standard: All mixed use residential and attached housing developments of ten (10) or
more dwelling units shall provide common opens space and/or recreation areas.
a. At minimum, fifty (50) square feet per unit shall be provided.
b. The location, layout, and proposed type of common space or recreation area
shall be subject to approval by the Administrator.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 26 of 46
SR_TA_Benson_Petro_HEX_FINAL
c. Open space or recreation areas shall be located to provide sun and light
exposure to the area and located so that they are aggregated to provide
usable area(s) for residents.
d. For projects with more than one hundred (100) dwelling units, vegetated low
impact development facilities may be used in required or provided open space
where feasible and designed consistent with the Surface Water Design
Manual. Such facilities shall be counted towards no more than fifty percent
(50%) of the required open space.
e. At least one of the following shall be provided in each open space and/or
recreation area (the Administrator may require more than one of the
following elements for developments having more than one hundred (100)
units):
i. Courtyards, plazas, pea patches, or multi-purpose open spaces;
ii. Upper level common decks, patios, terraces, or roof gardens. Such spaces
above the street level must feature views or amenities that are unique to
the site and are provided as an asset to the development;
iii. Pedestrian corridors dedicated to passive recreation and separate from
the public street system;
iv. Recreation facilities including, but not limited to, tennis/sports courts,
swimming pools, exercise areas, game rooms, or other similar facilities; or
v. Children’s play spaces that are centrally located near a majority of
dwelling units and visible from surrounding units. They shall also be
located away from hazardous areas such as garbage dumpsters, drainage
facilities, and parking areas.
f. The following shall not be counted toward the common open space or
recreation area requirement:
i. Required landscaping, driveways, parking, or other vehicular use areas.
ii. Required yard setback areas. Except for areas that are developed as
private or semi-private (from abutting or adjacent properties) courtyards,
plazas or passive use areas containing landscaping and fencing sufficient
to create a fully usable area accessible to all residents of the development.
iii. Private decks, balconies, and private ground floor open space.
iv. Other required landscaping and sensitive area buffers without common
access links, such as pedestrian trails.
Staff Comment: Not applicable, the proposal does not include residential development.
N/A
Standard: All buildings and developments with over thirty thousand (30,000) square
feet of nonresidential uses (excludes parking garage floorplate areas) shall provide
pedestrian-oriented space.
a. The pedestrian-oriented space shall be provided according to the following
formula: 1% of the site area + 1% of the gross building area, at minimum.
b. The pedestrian-oriented space shall include all of the following:
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 27 of 46
SR_TA_Benson_Petro_HEX_FINAL
i. Visual and pedestrian access (including barrier-free access) to the abutting
structures from the public right-of-way or a nonvehicular courtyard; and
ii. Paved walking surfaces of either concrete or approved unit paving; and
iii. On-site or building-mounted lighting providing at least four (4) foot-
candles (average) on the ground; and
iv. At least three (3) lineal feet of seating area (bench, ledge, etc.) or one
individual seat per sixty (60) square feet of plaza area or open space.
c. The following areas shall not count as pedestrian-oriented space:
i. The minimum required walkway. However, where walkways are widened
or enhanced beyond minimum requirements, the area may count as
pedestrian-oriented space if the Administrator determines such space
meets the definition of pedestrian-oriented space.
ii. Areas that abut landscaped parking lots, chain link fences, blank walls,
and/or dumpsters or service areas.
d. Outdoor storage (shopping carts, potting soil bags, firewood, etc.) is
prohibited within pedestrian-oriented space.
Staff Comment: Not applicable, the proposal does not include more than 30,000 sq. ft.
of non-residential uses.
✓
Standard: Public plazas shall be provided at intersections identified in the Commercial
Arterial Zone Public Plaza Locations Map and as listed below:
a. Benson Area: Benson Drive S./108th Avenue S.E. and S.E. 176th.
b. Bronson Area: Intersections with Bronson Way North at:
i. Factory Avenue N./Houser Way S.;
ii. Garden Avenue N.; and
iii. Park Avenue N. and N. First Street.
c. Cascade Area: Intersection of 116th Avenue S.E. and S.E. 168th Street.
d. Northeast Fourth Area: Intersections with N.E. Fourth at:
i. Duvall Avenue N.E.;
ii. Monroe Avenue N.E.; and
iii. Union Avenue N.E.
e. Grady Area: Intersections with Grady Way at:
i. Lind Avenue S.W.;
ii. Rainier Avenue S.;
iii. Shattuck Avenue S.; and
iv. Talbot Road S.
f. Puget Area: Intersection of S. Puget Drive and Benson Road S.
g. Rainier Avenue Area: Intersections with Rainier Avenue S. at:
i. Airport Way/Renton Avenue S.;
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 28 of 46
SR_TA_Benson_Petro_HEX_FINAL
ii. S. Second Street;
iii. S. Third Street/S.W. Sunset Boulevard;
iv. S. Fourth Street; and
v. S. Seventh Street.
h. North Renton Area: Intersections with Park Avenue N. at:
i. N. Fourth Street; and
ii. N. Fifth Street.
i. Northeast Sunset Area: Intersections with N.E. Sunset Boulevard at:
i. Duvall Avenue N.E.; and
ii. Union Avenue N.E.
Staff Comment: The project site is located at the northeast corner of the intersection
of Benson Dr. S and SE Petrovitsky Rd and is required to provide a public plaza. The
submitted application materials include a public plaza.
✓
Standard: The plaza shall measure no less than one thousand (1,000) square feet with
a minimum dimension of twenty feet (20') on one side abutting the sidewalk.
Staff Comment: As shown on the submitted landscape plan (Exhibit 3), the proposed
plaza would have a minimum dimension of 20 feet and a total area of approximately
1,000 sq. ft.
Compliant if
condition of
approval is
met
Standard: The public plaza must be landscaped consistent with RMC 4-4-070, including
at minimum street trees, decorative paving, pedestrian-scaled lighting, and seating.
Vegetated low impact development facilities may be used in the plaza where feasible
and designed consistent with the Surface Water Design Manual. Such facilities shall
count towards no more than fifty percent (50%) of the plaza requirement.
Staff Comment: The proposed plaza would be paved and landscaped with street trees,
however details regarding pedestrian-scaled lighting, and seating were not provided.
Staff recommends, as a condition of approval, that plaza details be provided to the
Current Planning Project Manager at the time of Construction Permit application for
review and approval. The detailed plan for the plaza shall include street trees,
decorative paving, pedestrian-scaled lighting, and seating.
5. BUILDING ARCHITECTURAL DESIGN:
Intent: To encourage building design that is unique and urban in character, comfortable on a human
scale, and uses appropriate building materials that are suitable for the Pacific Northwest climate. To
discourage franchise retail architecture.
a. Building Character and Massing:
Intent: To ensure that buildings are not bland and visually appear to be at a human scale; and ensure
that all sides of a building, that can be seen by the public, are visually interesting.
Guidelines: Building facades shall be modulated and/or articulated to reduce the apparent size of
buildings, break up long blank walls, add visual interest, and enhance the character of the
neighborhood. Articulation, modulation, and their intervals should create a sense of scale important to
residential buildings.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 29 of 46
SR_TA_Benson_Petro_HEX_FINAL
Compliant if
condition of
approval is met
Standard: All building facades shall include modulation or articulation at intervals of
no more than forty feet (40').
Staff Comment: As shown on the submitted site plan (Exhibit 2) and architectural
elevations (Exhibits 4 & 5), the proposed convenience store would include modulation
and articulation around all facades. The north elevation of the proposed bank building
does not include any modulation or articulation, however all other sides of the building
would. Staff recommends, as a condition of approval, that the architectural elevation
of the north façade of the proposed bank building be amended to include modulation
and articulation to break up the façade. The revised elevations shall be submitted to
the Current Planning Project Manager for review and approval at the time of Building
Permit review.
✓
Standard: Modulations shall be a minimum of two feet (2') deep, sixteen feet (16') in
height, and eight feet (8') in width.
Staff Comment: The proposed modulations would comply with the minimum two-foot
(2’) depth, sixteen-foot (16’) height, and eight-foot (8’) width requirements.
N/A
Standard: Buildings greater than one hundred sixty feet (160') in length shall provide
a variety of modulations and articulations to reduce the apparent bulk and scale of the
facade; or provide an additional special feature such as a clock tower, courtyard,
fountain, or public gathering area.
Staff Comment: No applicable, none of the proposed buildings exceed one 160 feet in
length.
b. Ground-Level Details:
Intent: To ensure that buildings are visually interesting and reinforce the intended human-scale
character of the pedestrian environment; and ensure that all sides of a building within near or distant
public view have visual interest.
Guidelines: The use of material variations such as colors, brick, shingles, stucco, and horizontal wood
siding is encouraged. The primary building entrance should be made visibly prominent by incorporating
architectural features such as a facade overhang, trellis, large entry doors, and/or ornamental lighting
(illustration below). Detail features should also be used, to include things such as decorative entry
paving, street furniture (benches, etc.), and/or public art.
✓
Standard: Human-scaled elements such as a lighting fixtures, trellis, or other
landscape features shall be provided along the facade’s ground floor.
Staff Comment: The proposal includes human scaled elements such as glazing, large
entry doors, weather protection, material variation and color, and landscaping.
Compliant if
conditions of
approval are
met
Standard: On any facade visible to the public, transparent windows and/or doors are
required to comprise at least 50 percent of the portion of the ground floor facade that
is between 4 feet and 8 feet above ground (as measured on the true elevation).
Staff Comment: Architectural elevations and floor plans (Exhibits 4 and 5, respectively)
were included with the submittal and show the locations of proposed glazing and it
appears the proposed glazing would largely comply with the intent of this standard.
The north elevation of the proposed bank building includes one (1) window that would
provide natural light into the staff lounge, the remainder of this façade would
encapsulate a data center and restroom that would preclude the proposal from
complying with this standard. To mitigate for the lack of glazing proposed along the
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 30 of 46
SR_TA_Benson_Petro_HEX_FINAL
north façade of the bank building, staff recommends reducing the width of the
driveway abutting the north façade of the bank building and incorporating a four-foot
(4’) wide landscaped strip between the north building façade and the sidewalk to
provide visual interest in lieu of glazing. This landscaped area shall be planted with a
combination of trees, shrubs, and evergreen ground cover. A revised site and
landscape plan showing this landscape area shall be submitted to the Current Planning
Project Manager for review and approval at the time of Construction Permit review.
The south and west elevations of the proposed convenience store include a “faux
storefront fenestration” in lieu of the required glazing and do not appear to provide
the required fifty percent (50%) transparent windows and/or doors along 50 percent
of the portion of the ground floor facade that is between 4 feet and 8 feet above
ground. Staff recommends, as a condition of approval, that revised elevations for the
proposed convenience store be provided to the Current Planning Project Manager for
review and approval at the time of Building Permit review. The revised elevations shall
demonstrate that the south, west, and north elevations provide the required fifty
percent (50%) transparent windows and/or doors along 50 percent (50%) of the
portion of the ground floor facade that is between 4 feet and 8 feet above ground. The
east elevation of the proposed convenience store would not include glazing, however
this façade would be oriented towards the fifteen-foot (15’) wide landscape strip
proposed along the east property line and would not be visible to the public, therefore
the convenience store elevations would comply with the intent of this standards.
N/A
Standard: Upper portions of building facades shall have clear windows with visibility
into and out of the building. However, screening may be applied to provide shade and
energy efficiency. The minimum amount of light transmittance for windows shall be
50 percent.
Staff Comment: The existing building is one story and does not include upper level
windows.
N/A Standard: Display windows shall be designed for frequent change of merchandise,
rather than permanent displays.
✓
Standard: Where windows or storefronts occur, they must principally contain clear
glazing.
Staff Comment: According to the submitted architectural elevations, the glazing
proposed would be clear.
✓
Standard: Tinted and dark glass, highly reflective (mirror-type) glass and film are
prohibited.
Staff Comment: According to the submitted architectural elevations, the proposal
does not include tinted or reflective glazing.
✓
Standard: Untreated blank walls visible from public streets, sidewalks, or interior
pedestrian pathways are prohibited. A wall (including building facades and retaining
walls) is considered a blank wall if:
a. It is a ground floor wall or portion of a ground floor wall over 6 feet in height,
has a horizontal length greater than 15 feet, and does not include a window,
door, building modulation or other architectural detailing; or
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 31 of 46
SR_TA_Benson_Petro_HEX_FINAL
b. Any portion of a ground floor wall has a surface area of 400 square feet or
greater and does not include a window, door, building modulation or other
architectural detailing.
Staff Comment: As shown on the submitted architectural elevations for the bank
(Exhibit 4) and convenience store (Exhibit 5), the east and north elevation of the
proposed bank include untreated blank walls. Staff has previously recommended
additional landscaping along the north elevation to provide screening, which would
comply with the intent of this standard. Additional treatment for the blank wall
proposed along the east elevation would also be required. See further discussion
below.
The south, north, and east elevations of the proposed convenience store would have
areas of untreated blank walls. As previously discussed above, the east façade would
be screened via a proposed fifteen-foot (15’) wide landscape strip, which would comply
with the intent of this standard. Additional treatment of the blank walls proposed on
the convenience store’s south and north elevations would be required, see further
discussion below.
Compliant if
condition of
approval is
met
Standard: If blank walls are required or unavoidable, blank walls shall be treated with
one or more of the following:
a. A planting bed at least five feet in width containing trees, shrubs, evergreen
ground cover, or vines adjacent to the blank wall;
b. Trellis or other vine supports with evergreen climbing vines;
c. Architectural detailing such as reveals, contrasting materials, or other special
detailing that meets the intent of this standard;
d. Artwork, such as bas-relief sculpture, mural, or similar; or
e. Seating area with special paving and seasonal planting.
Staff Comment: As previously discussed above, the east and north elevation of the
proposed bank and the south and north elevations of the proposed convenience store
would have areas of untreated blank walls. Staff recommends, as a condition of
approval, that the untreated blank walls along east and north elevation of the
proposed bank and the south and north elevations of the proposed convenience store
be treated with a planting bed at least five feet (5’) in width containing trees, shrubs,
evergreen ground cover, or vines adjacent to the blank wall; trellis or other vine
supports with evergreen climbing vines; architectural detailing such as reveals,
contrasting materials, or other special detailing that meets the intent of this standard;
artwork, such as bas-relief sculpture, mural, or similar; or seating area with special
paving and seasonal planting.
c. Building Roof Lines:
Intent: To ensure that roof forms provide distinctive profiles and interest consistent with an urban
project and contribute to the visual continuity of the district.
Guidelines: Building roof lines shall be varied and include architectural elements to add visual interest
to the building.
✓ Standard: Buildings shall use at least one of the following elements to create varied
and interesting roof profiles:
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 32 of 46
SR_TA_Benson_Petro_HEX_FINAL
a. Extended parapets;
b. Feature elements projecting above parapets;
c. Projected cornices;
d. Pitched or sloped roofs
e. Buildings containing predominantly residential uses shall have pitched roofs
with a minimum slope of one to four (1:4) and shall have dormers or
interesting roof forms that break up the massiveness of an uninterrupted
sloping roof.
Staff Comment: As shown on the proposed elevations (Exhibits 4 and 5), the proposed
convenience store and bank buildings will feature varying parapet and canopy heights
to break up the apparent mass of the building. In addition, as shown on the elevation
for the proposed gas station canopy (Exhibit 6), a sloped roof is proposed to add visual
interest.
d. Building Materials:
Intent: To ensure high standards of quality and effective maintenance over time; encourage the use of
materials that reduce the visual bulk of large buildings; and encourage the use of materials that add
visual interest to the neighborhood.
Guidelines: Building materials are an important and integral part of the architectural design of a
building that is attractive and of high quality. Material variation shall be used to create visual appeal
and eliminate monotony of facades. This shall occur on all facades in a consistent manner. High quality
materials shall be used. If materials like concrete or block walls are used they shall be enhanced to
create variation and enhance their visual appeal.
✓
Standard: All sides of buildings visible from a street, pathway, parking area, or open
space shall be finished on all sides with the same building materials, detailing, and
color scheme, or if different, with materials of the same quality.
Staff Comment: As shown on the submitted architectural elevations (Exhibits 4, 5 and
6) for the convenience store, bank, and gas station canopy, respectively, all elevations
visible from the street or parking area would be finished on the same sides with the
same building materials. The finishes proposed on the convenience store would include
faux stone, fiber cement board/batten siding, fiber cement panels, metal canopies, and
prefinished metal parapet caps. The finishes proposed on the bank building would
include stone, fiber cement panels, and metal canopies. The finishes proposed on the
gas station canopy would include stone work around the columns.
✓
Standard: All buildings shall use material variations such as colors, brick or metal
banding, patterns or textural changes.
Staff Comment: As previously discussed above the material finishes on the proposed
buildings would include a variety of colors, patterns and textures.
✓
Standard: Materials, individually or in combination, shall have texture, pattern, and
be detailed on all visible facades.
Staff Comment: As previously discussed above, the architectural elevations (Exhibits 4,
5, and 6) for the bank, convenience store, and gas station canopy, respectively, include
finished that would provide a variety of texture, pattern and color variation along each
façade as well as between buildings within the proposed development.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 33 of 46
SR_TA_Benson_Petro_HEX_FINAL
Compliant if
condition of
approval is
met
Standard: Materials shall be durable, high quality, and consistent with more
traditional urban development, such as brick, integrally colored concrete masonry,
pre-finished metal, stone, steel, glass and cast-in-place concrete.
Staff Comment: To ensure that the proposed materials are of high quality, staff
recommends, as a condition of approval, that a materials board be submitted to the
Current Planning Project Manager for review and approval at the time of Building
Permit application.
N/A Standard: If concrete is used, walls shall be enhanced by techniques such as texturing,
reveals, and/or coloring with a concrete coating or admixture.
✓
Standard: If concrete block walls are used, they shall be enhanced with integral color,
textured blocks and colored mortar, decorative band pattern and/or shall incorporate
other masonry materials.
Staff Comment: As shown on the submitted elevations (Exhibit 4 and 5) the proposed
bank would include a textured stone veneer and the convenience store would include
a faux stone finish that would add variety and texture to the proposed facades.
✓
Standard: All buildings shall use material variations such as colors, brick or metal
banding, patterns, or textural changes.
Staff Comment: See previous discussion above.
6. SIGNAGE: In addition to the City’s standard sign regulations, developments within Urban Design
Districts C and D are also subject to the additional sign restrictions found in RMC 4-4-100G, urban design
sign area regulations. Modifications to the standard requirements found in RMC 4-4-100G are possible
for those proposals that can comply with the Design District criteria found in RMC 4-3-100F,
Modification of Minimum Standards. For proposals unable to meet the modification criteria, a variance
is required.
✓
Standard: Signage shall be an integral part of the design approach to the building.
Staff Comment: A sign package was not included with the submitted application
materials however the location of proposed monument signage was shown on the
submitted site plan (Exhibit 2) and conceptual wall signs were shown on the building
elevations (Exhibit 4, 5, and 6). The proposed wall signs would be integrated into the
proposed design of the buildings, with prominent wall signs over the building
entrances.
N/A
Standard: In mixed use and multi-use buildings, signage shall be coordinated with the
overall building design.
Staff Comment: Not applicable, the proposal does not include at mixed use or multi-
use building.
✓
Standard: Corporate logos and signs shall be sized appropriately for their location.
Staff Comment: The proposed wall signs appear to be proportionate to the size of the
wall on which they are located.
Compliance
not yet
demonstrated
Standard: Entry signs shall be limited to the name of the larger development.
Staff Comment: A sign package including the entry signs was not included with the
submitted application materials.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 34 of 46
SR_TA_Benson_Petro_HEX_FINAL
✓
Standard: Alteration of trademarks notwithstanding, corporate signage should not be
garish in color nor overly lit, although creative design, strong accent colors, and
interesting surface materials and lighting techniques are encouraged.
Staff Comment: The proposed signage shown on the submitted elevations (Exhibits 4,
5, and 6) does not appear to be garish in nature.
Compliance
not yet
demonstrated
Standard: Front-lit, ground-mounted monument signs are the preferred type of
freestanding sign.
Staff Comment: Sign details for the monument signs were not included with the project
application materials.
N/A
Standard: Blade type signs, proportional to the building facade on which they are
mounted, are encouraged on pedestrian-oriented streets.
Staff Comment: Not applicable, no blade signs were shown on the submitted
elevations.
Compliance
not yet
demonstrated
Standard: All of the following are prohibited:
a. Pole signs;
b. Roof signs; and
c. Back-lit signs with letters or graphics on a plastic sheet (can signs or
illuminated cabinet signs). Exceptions: Back-lit logo signs less than ten (10)
square feet are permitted as area signs with only the individual letters back-
lit (see illustration, subsection G8 of this Section).
Staff Comment: A formal sign package was not included with the submitted application
materials. Compliance with these requirements would be verified at the time of formal
sign permit review.
Compliance
not yet
demonstrated
Standard: Freestanding ground-related monument signs, with the exception of
primary entry signs, shall be limited to five feet (5') above finished grade, including
support structure.
Staff Comment: A formal sign package was not included with the submitted application
materials. Compliance with these requirements would be verified at the time of formal
sign permit review.
Compliance
not yet
demonstrated
Standard: Freestanding signs shall include decorative landscaping (ground cover
and/or shrubs) to provide seasonal interest in the area surrounding the sign.
Alternately, signage may incorporate stone, brick, or other decorative materials as
approved by the Director.
Staff Comment: A formal sign package was not included with the submitted application
materials. Compliance with these requirements would be verified at the time of formal
sign permit review.
7. LIGHTING:
Intent: To ensure safety and security; provide adequate lighting levels in pedestrian areas such as
plazas, pedestrian walkways, parking areas, building entries, and other public places; and increase the
visual attractiveness of the area at all times of the day and night.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 35 of 46
SR_TA_Benson_Petro_HEX_FINAL
18. Modification Analysis: The applicant is requesting a modification from RMC 4-4-080 in order to exceed the
maximum number of 24 permitted parking spaces to 44 spaces. The proposal is compliant with the
following modification criteria, pursuant to RMC 4-9-250.D.2, if all conditions of approval are met.
Therefore, staff is recommending approval of the requested modification:
Compliance Modification Criteria and Analysis
✓
a. Substantially implements the policy direction of the policies and objectives of the
Comprehensive Plan Land Use Element and the Community Design Element and
the proposed modification is the minimum adjustment necessary to implement
these policies and objectives.
Staff Comment: See FOF 15, Comprehensive Plan Analysis. The project site is located
within the Commercial and Mixed Use (CMU) land use designation, the purpose of this
designation includes supporting new commercial development that is more intensive
than what exists to create a vibrant district and increase employment opportunities.
The proposed development of the site with a bank, convenience store, and gas station
would increase the intensity of the development on the project site and would forward
the goals of the CMU land use designation and the requested parking modification
would support the intensification of the new commercial development.
Compliant if
condition of
approval is
met
b. Will meet the objectives and safety, function, appearance, environmental
protection and maintainability intended by the Code requirements, based upon
sound engineering judgment.
Staff Comment: A Parking Modification Justification (Exhibit 23) and a Parking Analysis
(Exhibit 22) were included with the submitted application materials. The applicant
contends that the additional parking is necessary for the convenience store as customer
Guidelines: Lighting that improves pedestrian safety and also that creates visual interest in the building
and site during the evening hours shall be provided.
Compliant if
condition of
approval is
met
Standard: Pedestrian-scale lighting shall be provided at primary and secondary
building entrances. Examples include sconces on building facades, awnings with down-
lighting and decorative street lighting.
Staff Comment: A lighting plan was not included with the submitted application
materials, therefore staff was unable to verify compliance with this requirement. Staff
recommends, as a condition of approval, that a lighting plan and light fixture details
be provided to the Current Planning Project Manager for review and approval at the
time of Building Permit review.
Compliance
not yet
demonstrated
Standard: Accent lighting shall also be provided on building facades (such as sconces)
and/or to illuminate other key elements of the site such as gateways, specimen
trees, other significant landscaping, water features, and/or artwork.
Staff Comment: See discussion above.
Compliance
not yet
demonstrated
Standard: Downlighting shall be used in all cases to assure safe pedestrian and
vehicular movement, unless alternative pedestrian scale lighting has been approved
administratively or is specifically listed as exempt from provisions located in RMC 4-
4-075, Lighting, Exterior On-Site (i.e., signage, governmental flags, temporary holiday
or decorative lighting, right-of-way-lighting, etc.).
Staff Comment: See discussion above.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 36 of 46
SR_TA_Benson_Petro_HEX_FINAL
volumes peak on Fridays during the morning, noon, and afternoon times. To
accommodate the peak customer volumes, the parking analysis concludes that as many
as 18 parking spaces could be anticipated for customer use and five (5) parking spaces
would be anticipated for employee use resulting in a total parking demand of 23 spaces
and two (2) additional ADA spaces for the convenience store.
According to the submitted Parking Analysis (Exhibit 22), the bank would have peak
customer hours daily between 11:00 am and 1:30 pm where 18-19 customers visit each
half hour (not including ATM transactions which can account for an additional 8-10
customers), which equates to a peak parking demand of 20 spaces during peak times.
In addition, to serve these customers, the bank would have up to 10 employees working
at peak times, requiring a total parking demand of 30 spaces during peak times.
As noted above, the peak parking demand for each use would only potentially overlap
during mid-day on Fridays, the applicant anticipates that the total proposed shared
spaces would adequately accommodate the parking needs on the site even during most
peak times.
As previously discussed above under FOF 16 Development Standards: Tree Retention,
staff is recommending a reduction in some of the provide parking to accommodate tree
retention. Landscaping, pedestrian connections, and screening will be provided
throughout the proposed parking areas, consistent with the City development
standards and urban design regulations. In addition, the proposed surface parking
would largely be screened from the public view by the proposed convenience store and
bank buildings and landscaping. To further mitigate for the proposed additional
expanse of asphalt that would be generated by the additional parking spaces, staff
recommends, as a condition of approval, that a mix of large maturing evergreen and
deciduous trees be planted within the interior parking lot landscaped areas. A detailed
landscape plan showing the large maturing evergreen and deciduous trees shall be
submitted to the Current Planning Project Manager at the time of Construction Permit
Review for review and approval.
✓
c. Will not create substantial adverse impacts to other property(ies) in the vicinity.
Staff Comment: There are no identified adverse impacts to other properties from the
requested modification to provide additional parking. It is anticipated that the
additional parking would accommodate parking needs onsite during peak parking
demand periods.
✓
d. Conforms to the intent and purpose of the Code.
Staff Comment: See comments under criterion ‘b’.
✓
e. Can be shown to be justified and required for the use and situation intended.
Staff Comment: See comments under criterion ‘b’.
19. Modification Analysis: The applicant is requesting a modification from RMC 4-6-060 in order to comply
with the design included in the City of Renton’s 2022-2027 Transportation Improvement Program (TIP) for
the Carr Road corridor (City TIP #31) and also identified in the preliminary (pre-30%) design plans for the
intersection improvements prepared by the City’s Transportation Division in 2014/2015. Due to the
proposed frontage design being required by the City, a street modification is required to allow a
modification to the standard frontage design along both roads. The proposal is compliant with the
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 37 of 46
SR_TA_Benson_Petro_HEX_FINAL
following modification criteria, pursuant to RMC 4-9-250.D.2, if all conditions of approval are met.
Therefore, staff is recommending approval of the requested modification:
Compliance Modification Criteria and Analysis
✓
a. Substantially implements the policy direction of the policies and objectives of the
Comprehensive Plan Land Use Element and the Community Design Element and
the proposed modification is the minimum adjustment necessary to implement
these policies and objectives.
Staff Comment: See FOF 16, Comprehensive Plan Analysis. The proposed design is
consistent with the design included in the City of Renton’s 2022-2027 Transportation
Improvement Program (TIP) for the Carr Road corridor (City TIP #31) and also the design
proposed in the preliminary (pre-30%) design plans for the intersection improvements
prepared by the City’s Transportation Division in 2014/2015.
✓
b. Will meet the objectives and safety, function, appearance, environmental
protection and maintainability intended by the Code requirements, based upon
sound engineering judgment.
Staff Comment: As noted above, the proposed modification would meet the objectives
of function and maintainability intended by the code requirements as it would comply
with alternative plans developed by the City’s Public Works Transportation Section, that
deviate from the City’s adopted street standards. The City’s Public Works
Transportation Division have reviewed the Benson Dr S and SE Petrovitsky rights-of-way
and have determined that a modified street section is more suitable along the frontage
of the project site as specified in the adopted TIP as well as the design plans for the
intersection improvements.
SE Petrovitsky Road (176th St SE) is a five lane Principal Arterial. Per RMC 4-6-060,
minimum ROW width required on a five-lane principal arterial is 103 feet (half-street
ROW=51.5 feet) and would result in an approximate dedication ranging from 30 feet to
42 feet along the project frontage. Street frontage improvements on the north side of
SE Petrovitsky Road identified in the City’s Transportation Division preliminary plan for
TIP #31 include roadway widening to provide an additional 11-foot wide right-turn only
lane, 0.5-foot-wide curb, 8-foot-wide landscaped planter, 12-foot wide sidewalk, and a
2-foot clear area from back of sidewalk to the new ROW line. These street and frontage
improvements identified by the City Transportation Division to be provided by the
applicant would require varying ROW dedication along the frontage of the 3 parcels
(approximate dedication would range from 19.5 feet to 31.5 feet).
Benson Drive S (108th Ave SE/ SR 515) is a Principal Arterial. Per RMC 4-6-060, the
minimum ROW width required on a five-lane principal arterial is 103 feet (half-street
ROW = 51.5 feet). Based on existing survey, the existing half street ROW width on the
Benson Drive S site frontage is approximately 45 feet. Street frontage improvements on
the east side of Benson Drive S identified per RMC 4-6-060 and also included in the City’s
Transportation Division preliminary plan for TIP #31 include roadway widening to
provide an 11-foot-wide acceleration lane, 0.5-foot-wide curb, 8-foot-wide landscaped
planter, 8-foot-wide sidewalk, and 2-foot clear width from the back of sidewalk to the
new ROW line. The street and frontage improvements identified by the City
Transportation Division to be provided by the applicant would require a ROW dedication
of approximately 17.5-ft.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 38 of 46
SR_TA_Benson_Petro_HEX_FINAL
✓
c. Will not create substantial adverse impacts to other property(ies) in the vicinity.
Staff Comment: There are no identified adverse impacts to other properties from the
requested modification. New frontage improvements would be installed along the
subject property’s abutting ROW.
✓
d. Conforms to the intent and purpose of the Code.
Staff Comment: See comments under criterion ‘b’.
✓
e. Can be shown to be justified and required for the use and situation intended.
Staff Comment: See comments under criterion ‘b’.
20. Site Plan Review: Pursuant to RMC 4-9-200.B, Site Plan Review is required for development in the CA
zoning classification when it is not exempt from Environmental (SEPA) Review. For Master Plan
applications compliance with the review criteria for Site Plans are analyzed at a general level of detail to
ensure nothing would preclude the development of the Site Plan. Given Site Plan applications are
evaluated for compliance with the specific requirements of the RMC 4-9-200.E.3 the following table
contains project elements intended to comply with level of detail needed for Site Plan requests:
Compliance Site Plan Criteria and Analysis
Compliant if
conditions of
approval are
met
a. Comprehensive Plan Compliance and Consistency.
Staff Comment: See previous discussion under FOF 15, Comprehensive Plan Analysis.
Compliant if
conditions of
approval are
met
b. Zoning Compliance and Consistency.
Staff Comment: See discussion under FOF 16, Zoning Development Standard
Compliance.
Compliant if
conditions of
approval are
met
c. Design Regulation Compliance and Consistency.
Staff Comment: See discussion under FOF 17, Design District Review.
N/A d. Planned action ordinance and Development agreement Compliance and
Consistency.
✓
e. Off-site Impacts.
Structures: Restricting overscale structures and overconcentration of development
on a particular portion of the site.
Staff Comment: See FOF 17, Design District Review: Building Character and Massing.
Circulation: Providing desirable transitions and linkages between uses, streets,
walkways and adjacent properties.
Staff Comment: The proposal would provide pedestrian connections between the
primary building entrance and the public sidewalk within the public right-of-way. In
addition, pedestrian walkways are proposed around the buildings with connections to
the surface parking lot, providing safe and efficient access for pedestrians. Vehicular
access to the site is proposed via one curb cut off of Benson Dr. S and one curb cut off
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 39 of 46
SR_TA_Benson_Petro_HEX_FINAL
of SE Petrovitsky Rd, which would minimize the vehicular access to and from the site
and provide fewer interruptions to the public sidewalk.
Utilities, Loading and Storage Areas: Locating, designing and screening storage
areas, utilities, rooftop equipment, loading areas, and refuse and recyclables to
minimize views from surrounding properties. Locate utilities underground
consistent with RMC 4-6-090.
Staff Comment: See FOF 16, Zoning Development Standard: Screening and Outdoor
Storage.
Views: Recognizing the public benefit and desirability of maintaining visual
accessibility to attractive natural features.
Staff Comment: The proposal includes the construction of single-story buildings and
would not adversely impact existing views of surrounding development.
Landscaping: Using landscaping to provide transitions between development and
surrounding properties to reduce noise and glare, maintain privacy, and generally
enhance the appearance of the project.
Staff Comment: See discussion under FOF 16, Zoning Development Standard:
Landscaping.
Lighting: Designing and/or placing exterior lighting and glazing in order to avoid
excessive brightness or glare to adjacent properties and streets.
Staff Comment: A lighting plan was not provided with the application; therefore staff
recommended that a lighting plan be provided at the time of building permit review
(See Lighting discussion under FOF 17, Design Review: Lighting).
✓
f. On-site Impacts.
Structure Placement: Provisions for privacy and noise reduction by building
placement, spacing and orientation.
Staff Comment: The proposed buildings are single-story commercial buildings, in
addition landscaping is proposed around the site perimeter reducing any potential
adverse privacy impacts on surrounding properties. The proposed bank and
convenience store would be situated close to the public right-of-way, reducing any
potential noise impact from these uses on surrounding properties.
Structure Scale: Consideration of the scale of proposed structures in relation to
natural characteristics, views and vistas, site amenities, sunlight, prevailing winds,
and pedestrian and vehicle needs.
Staff Comment: The proposal includes the construction of single-story buildings and
would not adversely impact existing views of surrounding development. As previously
discussed above, a modification was requested to exceed the maximum number of
parking spaces permitted on the project site (see Modification discussion in FOF 18),
therefore it is anticipated that the vehicular needs for the proposed development would
be met.
Natural Features: Protection of the natural landscape by retaining existing
vegetation and soils, using topography to reduce undue cutting and filling, and
limiting impervious surfaces.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 40 of 46
SR_TA_Benson_Petro_HEX_FINAL
Staff Comment: See previous discussion above under FOF 16, Zoning Development
Standard Compliance: Tree Retention.
Reducing Parking Impervious Areas: Design parking areas to minimize impervious
surfaces, including but not limited to: (1) breaking up parking areas and directing
stormwater flows to multiple low impact development features such as
bioretention areas; (2) locating parking near trees to provide storm water uptake;
(3) retaining or adding vegetation to parking areas; (4) placing existing parking that
exceeds maximum parking ratios in permeable pavement designed consistent with
the Surface Water Design Manual in RMC 4-6-030; and (5) using other low impact
development techniques consistent with RMC 4-6-030
Staff Comment: See FOF 16, Zoning Development Standard: Landscaping and further
discussion below regarding stormwater.
Landscaping: Use of landscaping to soften the appearance of parking areas, to
provide shade and privacy where needed, to define and enhance open spaces, and
generally to enhance the appearance of the project. Landscaping also includes the
design and protection of planting areas so that they are less susceptible to damage
from vehicles or pedestrian movements.
Staff Comment: See FOF 16, Zoning Development Standard: Landscaping.
✓
g. Access and Circulation.
Location and Consolidation: Providing access points on side streets or frontage
streets rather than directly onto arterial streets and consolidation of ingress and
egress points on the site and, when feasible, with adjacent properties.
Staff Comment: Vehicular access to the site is proposed via one curb cut off of Benson
Dr. S and one curb cut off of SE Petrovitsky Rd, which would minimize the vehicular
access to and from the site and provide fewer interruptions to the public sidewalk.
Internal Circulation: Promoting safety and efficiency of the internal circulation
system, including the location, design and dimensions of vehicular and pedestrian
access points, drives, parking, turnarounds, walkways, bikeways, and emergency
access ways.
Staff Comment: The proposal would provide pedestrian connections between the
primary building entrance and the public sidewalk within the public right-of-way. In
addition, pedestrian walkways are proposed around the buildings with connections to
the surface parking lot, providing safe and efficient access for pedestrians. Vehicular
access to the site is proposed via one curb cut off of Benson Dr. S and one curb cut off
of SE Petrovitsky Rd, which would minimize the vehicular access to and from the site
and provide fewer interruptions to the public sidewalk.
The existing and proposed vehicular and pedestrian circulation would be safe and
efficient and provide adequate access for emergency vehicles.
Loading and Delivery: Separating loading and delivery areas from parking and
pedestrian areas.
Staff Comment: The proposed buildings do not include separate locating and deliver
areas.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 41 of 46
SR_TA_Benson_Petro_HEX_FINAL
Transit and Bicycles: Providing transit, carpools and bicycle facilities and access.
Staff Comment: Per RMC 4-4-080F.11.a bicycle parking spaces are required at 10% of
the number of required off-street parking spaces, see previous discussion under FOF 16,
Zoning Development Standards: Bicycle Parking. There are existing transit stops located
on SE Benson Dr. S and SE Petrovitsky Rd., in addition the King County Rapid Ride I-Line
project is proposed and Benson Dr. S and would have transit stops within the vicinity of
the project site.
Pedestrians: Providing safe and attractive pedestrian connections between parking
areas, buildings, public sidewalks and adjacent properties.
Staff Comment: The proposal would provide pedestrian connections between the
primary building entrance and the public sidewalk within the public right-of-way. In
addition, pedestrian walkways are proposed around the buildings with connections to
the surface parking lot, providing safe and efficient access for pedestrians.
✓
h. Open Space: Incorporating open spaces to serve as distinctive project focal points
and to provide adequate areas for passive and active recreation by the
occupants/users of the site.
Staff Comment: As previously discussed above, a public plaza is proposed at the
intersection of Benson and Petrovitsky (see FOF 17, Design District Compliance:
Recreation Areas and Common Open Space), in addition landscaping is proposed within
and around the perimeter for the project site.
✓
i. Views and Public Access: When possible, providing view corridors to shorelines and
Mt. Rainier, and incorporating public access to shorelines
Staff Comment: The proposal includes the construction of single-story buildings, which
would not block view corridors to shorelines or Mt. Rainier. The public access
requirement to shorelines is not applicable to the proposal as there are not shorelines
within the vicinity of the proposal.
N/A
j. Natural Systems: Arranging project elements to protect existing natural systems
where applicable.
Staff Comment: Not applicable, there are not critical areas mapped on the project site.
✓
k. Services and Infrastructure: Making available public services and facilities to
accommodate the proposed use:
Police and Fire.
Staff Comment: Police and Fire Prevention staff indicated that sufficient resources exist
to furnish services to the proposed development; if the applicant provides Code required
improvements and fees. A Fire Impact Fee, based on a rate of $0.26 per square foot of
commercial bank/office space and $1.25 per square foot of retail space would be
applicable to the proposal. There is no fire impact fee applicable to the gas station
canopy. This fee is assessed and paid at time of building permit issuance.
Water and Sewer.
Staff Comment: The subject development is within the water service area of Soos Creek
Water and Sewer District. A Certificate of Water Availability dated 8/8/2022 (Exhibit
24) was provided with the application materials. The Certificate of Water Availability
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 42 of 46
SR_TA_Benson_Petro_HEX_FINAL
notes that the “Water service will require and improvement to the water system of:
Water main fronting south side of property along SE Petrovitsky Rd. Final water
requirements and layout will be based on the final site development plan, road, storm,
grading and fire marshal requirements.” A copy of the final approved water plans from
Soos Creek Water and Sewer District shall be provided to the City prior to the issuance
of a Civil Construction Permit.
The subject development is within the sewer service area of Soos Creek Water and
Sewer District. A Certificate of Sewer Availability dated 8/9/2022 (Exhibit 25) was
provided with the application materials. A copy of the approved sewer plans from Soos
Creek Water and Sewer District shall be provided to the City prior to approval of the Civil
Construction Permit. If any of the existing buildings on the site are served by private on-
site septic systems, the septic systems shall be abandoned in accordance with King
County Department of Health regulations and Renton Municipal Code.
Drainage.
Staff Comment: A Preliminary Technical Information Report (TIR) prepared by Contour
Engineering, LLC, dated August 2022 was submitted with the land use application
materials. The project would be subject to the 2022 City of Renton Surface Water Design
Manual (RSWDM). Based on the City’s flow control map, the site falls within the Flow
Control Duration Standard area matching Forested Site Conditions. The site falls within
the Black River Drainage Basin. Existing surface water runoff is collected and conveyed
via catch basins to an existing underground storm drainage system, that collects and
conveys stormwater runoff from the existing buildings and parking lot off-site to the
south, to the storm system in SE Petrovitsky RD. From there, it travels north along
Benson DR S, and then along SE 174th Street. There is no existing on-site detention
system.
To comply with the flow control requirements of the RSWDM, stormwater runoff would
be tightlined to or collected by onsite catch basins, which would direct the water to an
underground detention vault. Stormwater discharged from the vault would be routed
through a water quality device and pump system before being discharged off site into
the public stormwater system in Benson Dr. S.
The development is subject to a system development charge (SDC) for stormwater. The
2023 SDC for stormwater is $0.92 per square foot of new impervious surface area, but
not less than $2,300.00. The fee that is current would be assessed and charged at the
time of construction permit issuance.
Transportation.
Staff Comment: The proposed development site has frontage on SE Petrovitsky Road
(176th St SE) and on Benson Dr. S (108th Ave SE / SR 515). Frontage improvements
would be required along both street frontages, a modification to the City’s street
frontage requirements was requested, see previous Modification discussion above
under FOF 19. Access to the site will be limited to right-in right out on both SE
Petrovitsky and 108th Ave SE/Benson Dr S.
A Traffic Impact Analysis (TIA), dated October 4, 2022, prepared by Transportation
Engineering Northwest (Exhibit 12) was included with the project application materials.
According to the TIA, the proposed project is estimated to generate 1,085 net new
weekday daily trips, with 71 net new trips occurring during the weekday AM peak hour
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 43 of 46
SR_TA_Benson_Petro_HEX_FINAL
(37 entering, 34 exiting), and 104 net new trips occurring during the weekday PM peak
hour (52 entering, 52 exiting).
The TIA also included level of service (LOS) analyses for future year 2024 weekday AM
and PM peak hour conditions at four (4) signalized off-site study intersections (106th Pl
SE and SE Carr Rd, Benson Dr S and Benson Rd S, Benson Dr S and SE Petrovitsky Rd, and
108th Ave SE and SE 180th St). All study intersections are expected to operate at a LOS
E or better, which is an acceptable level, during the weekday AM and PM peak hours in
2024 without or with the proposed project.
Transportation Concurrency (Exhibit 26) was completed for the proposed project, The
proposed project passes the City of Renton Traffic Concurrency Test per RMC 4-6-070.D.
A Transportation Impact Fee, for a combination convenience store and gas station
would be applicable to the proposal. For informational purposes, the 2023 fee is based
on a rate of $157.10 per square foot of drive-in bank and $73,411.90 per pump. This fee
will likely change in subsequent years and will be assessed and paid at time of building
permit issuance.
N/A l. Phasing: The applicant is not requesting any additional phasing.
✓
m. Stormwater: Providing optimal locations of stormwater infiltrating low impact
development facilities. Avoiding placement of buildings or impervious areas on
soils with infiltration capability to the maximum extent practicable.
Staff Comment: A Geotechnical Report, prepared by PanGeo Incorporated, dated May
2019 (Exhibit 10) was included with the submitted application materials. According to
the Geotech Report, the native soils underlying the site consist of Vashon till, a medium
dense to very dense deposit comprised of clay, silt, sand, and gravel. Till is generally
not a suitable receptor soil for infiltration due to the high fines content and density.
Therefore, the report concluded that surface water runoff on the project site should be
managed with non-infiltration alternatives.
I. CONCLUSIONS:
1. The subject site is located in the Commercial & Mixed Use (CMU) Comprehensive Plan designation and
complies with the goals and policies established with this designation, see FOF 15.
2. The subject site is located in the Commercial Arterial (CA) zoning designation and complies with the zoning
and development standards established with this designation provided the applicant complies with City
Code and conditions of approval, see FOF 16.
3. The proposed TA Benson Petro Project complies with the Urban Design Regulation provided the applicant
complies with City Code and conditions of approval, see FOF 17.
4. The proposed TA Benson Petro Project complies with the Parking Modification criteria provided the
applicant complies with City Code and conditions of approval, see FOF 18.
5. The proposed TA Benson Petro Project complies with the Street Standards Modification criteria provided
the applicant complies with City Code and conditions of approval, see FOF 19.
6. The proposed TA Benson Petro Project complies with the site plan review criteria as established by City
Code provided all advisory notes and conditions are complied with, see FOF 20.
7. There are adequate public services and facilities to accommodate the proposed TA Benson Petro Project,
see FOF 20.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 44 of 46
SR_TA_Benson_Petro_HEX_FINAL
8. Key features, which are integral to this project include the proposed public plaza, primary building entries
fronting on the public street, the glazing proposed along the south and east facades of the bank building,
and the stone façade proposed on the convenience store and bank facades.
J. RECOMMENDATION:
Staff recommends approval of the TA Benson Petro, LLC Site Plan, Parking Modification, and Street Standards
Modification, File No. LUA22-000424, SA-H, ECF, MOD, MOD, as depicted in (Exhibit 2), subject to the following
conditions:
1. The applicant shall comply with the mitigation measures issued as part of the Determination of Non-
Significance Mitigated, dated January 23, 2023:
a. The applicant shall implement a contingency mitigation plan to address potential contaminated
soil or groundwater handling and disposal, hazardous waste operations, worker training, health
and safety, and potential contamination remediation.
b. An Inadvertent Discovery Plan (IDP) shall be implemented during project construction for any
archeological resources encountered on the project site.
2. A lot line adjustment or lot consolidation shall be submitted for review and approval to the Current
Planning Project manager at the time of Building Permit review and recorded prior to the issuance of a
Temporary or Final Certificate of Occupancy for the first building constructed on the project site.
3. The site plan shall be revised to provide the minimum required 15-foot front and secondary front yard
setback between the proposed bank building and the intersection of Benson Dr S and SE Petrovitsky Rd.
The revised site plan shall be submitted to the Current Planning Project Manager for review and approval
at the time of Construction Permit review.
4. A detailed landscape plan shall be submitted at the time of Construction Permit review for review and
approval by the Current Planning Project Manager, the detailed landscape plan shall include, but not be
limited to:
a. A 10-foot onsite landscape strip along all street frontages incorporating a mix of trees, shrubs,
and ground cover, the portion of the street frontage landscaping abutting the surface parking lot
should be planted with primarily evergreen trees and shrubs to provide a year round screen;
b. A revised layout of the street frontage landscaping to accommodate the correct floor plan and
main entrance for the convenience store;
c. Interior parking lot landscaping (i.e. tree islands with a minimum dimension of eight feet by twelve
feet (8’ x 12') at a rate of 15 sq. ft. per parking space throughout the entire project site, interior
lot landscaping that does not meet this standards will not be credited toward the minimum
required;
d. No parking space shall be more than 50 feet from an interior parking lot landscaped tree island;
e. Trees shall be two inches (2") in diameter at breast height (dbh). At least one (1) tree for every six
(6) parking spaces within the parking lot interior shall be planted and around the parking lot
perimeter trees shall be planted at the average minimum rate of one (1) tree per 30 lineal feet of
street frontage;
f. Shrubs at the minimum rate of one per 20 square feet of landscaped area shall be planted. Up to
fifty percent (50%) of shrubs may be deciduous;
g. Ground cover shall be planted in sufficient quantities to provide at least ninety percent (90%)
coverage of the landscaped area within three (3) years of installation;
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 45 of 46
SR_TA_Benson_Petro_HEX_FINAL
h. The entire fifteen-foot (15’) wide landscape strip along the Residential-14 (R-14) zone shall be
landscaped;
i. The proposed plant palate shall be revised to replace Leyland cypress and juniper species with
native evergreen trees and shrubs (i.e. western red cedar, Douglas fir, western hemlock, and/or
Oregon grape).
5. A Final Tree Retention Plan shall be submitted at the time of Construction Permit review for review and
approval by the Current Planning Project Manager. The Final Tree Retention Plan shall include the
retention of the two (2) existing healthy trees identified on the north end of the project site, unless it is
determined infeasible by the Current Planning Project Manager.
6. An arborist shall be present onsite during any grading around the root zone of on or offsite protected
trees.
7. The refuse and recyclable deposit areas shall be amended such that they would not be located over the
proposed future property line. A revised site plan showing the amended refuse and recyclable deposit
areas shall be submitted at the time of Construction Permit review for review and approval by the Current
Planning Project Manager.
8. A bicycle parking detail shall be submitted at the time of Building Permit Review for review and approval
by the Current Planning Project Manager demonstrating that the proposal would comply with the bicycle
parking requirements as required in RMC 4-4-080F.11.
9. A screening detail shall be provided for any proposed surface or roof mounted utility equipment be
submitted to the Current Planning Project Manager for review and approval. The screening detail for
surface mounted utility equipment that includes cross sections of the utility and screening shall be
provided at the time of Construction Permit review and the screening detail for any roof-mounted utility
equipment shall be provided at the time of Building Permit review.
10. Revised architectural elevations shall be submitted at the time of building permit review including
weather protection with a minimum width of four and one-half feet (4-1/2') or the applicant shall
demonstrate compliance with the guideline of this section. The architectural elevations shall be submitted
to the Current Planning Project Manager for review and approval.
11. Garbage, recycling collection, and utility areas shall be enclosed on all sides, including the roof and
screened around their perimeter by a wall or fence and have self-closing doors. A screening detail shall be
submitted to the Current Planning Project Manager at the time of Building Permit review for review and
approval.
12. The proposed service area screening shall be comprised of masonry, ornamental metal, wood, or some
combination of the three (3).
13. Site amenity details, including outdoor seating shall be provided at the time of Construction Permit
application for review and approval by the Current Planning Project Manager. Site furniture shall be made
of durable, vandal- and weather-resistant materials that do not retain rainwater and can be reasonably
maintained over an extended period of time.
14. The applicant shall demonstrate that the weather protection proposed comprise seventy five percent
(75%) of the street facing façades. A revised site plan and building elevations demonstrating compliance
with this requirement shall be submitted to the Current Planning Project Manager at the time of Building
Permit review for review and approval.
15. Plaza details shall be provided to the Current Planning Project Manager at the time of Construction Permit
application for review and approval. The detailed plan for the plaza shall include street trees, decorative
paving, pedestrian-scaled lighting, and seating.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
City of Renton Department of Community & Economic Development
TA Benson Petro, LLC
Staff Report to the Hearing Examiner
LUA22-000424, SA-H, ECF, MOD, MOD
Report of February 28, 2023 Page 46 of 46
SR_TA_Benson_Petro_HEX_FINAL
16. The architectural elevation of the north façade of the proposed bank building shall be amended to include
modulation and articulation to break up the façade. Revised architectural elevations shall be submitted
to the Current Planning Project Manager for review and approval at the time of Building Permit review.
17. The width of the driveway abutting the north façade of the bank building shall be reduced by four feet
(4’) and a four-foot (4’) wide landscaped strip shall be included between the north building façade and
the sidewalk. This landscaped area shall be planted with a combination of trees, shrubs, and evergreen
ground cover. A revised site and landscape plan showing this landscape area shall be submitted to the
Current Planning Project Manager for review and approval at the time of Construction Permit review.
18. Revised elevations for the proposed convenience store shall be provided to the Current Planning Project
Manager for review and approval at the time of Building Permit review. The revised elevations shall
demonstrate that the south, west, and north elevations provide the required fifty percent (50%)
transparent windows and/or doors along 50 percent of the portion of the ground floor facade that is
between 4 feet and 8 feet above ground or demonstrate compliance with the guidelines of this section.
19. The untreated blank walls along east and north elevation of the proposed bank and the south and north
elevations of the proposed convenience store shall be treated with a planting bed at least five feet (5’) in
width containing trees, shrubs, evergreen ground cover, or vines adjacent to the blank wall; trellis or other
vine supports with evergreen climbing vines; architectural detailing such as reveals, contrasting materials,
or other special detailing that meets the intent of this standard; artwork, such as bas-relief sculpture,
mural, or similar; or seating area with special paving and seasonal planting.
20. A materials board shall be submitted to the Current Planning Project Manager for review and approval at
the time of Building Permit application.
21. A lighting plan and light fixture details shall be provided to the Current Planning Project Manager for
review and approval at the time of Building Permit review.
22. A mix of large maturing evergreen and deciduous trees shall be planted within the interior parking lot
landscaped areas. A detailed landscape plan showing the large maturing evergreen and deciduous trees
shall be submitted to the Current Planning Project Manager at the time of Construction Permit Review for
review and approval.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
CITY OF RENTON
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
STAFF REPORT TO THE HEARING EXAMINER
EXHIBITS
Project Name:
TA Benson Petro, LLC
Land Use File Number:
LUA22-000424, SA-H, ECF, MOD, MOD
Date of Hearing
February 28, 2023
Staff Contact
Jill Ding
Senior Planner
Project Contact/Applicant
Alicia Baker
Tekin & Associates, LLC
2600 Dallas Parkway, Suite
370, Frisco, TX 75034
Project Location
17426 Benson Dr SE,
10828 & 10810 SE
Petrovitsky Rd
The following exhibits are included with the Staff Report to the Hearing Examiner:
Exhibits 1-15: As shown in the Environmental Review Committee (ERC) Report
Exhibit 16: Staff Report to the Hearing Examiner
Exhibit 17: SEPA Determination of Non-Significance-Mitigated
Exhibit 18: Conceptual Lot Line Adjustment Layout
Exhibit 19: Street Modification Justification
Exhibit 20: Tree Retention and Tree Credit Worksheet
Exhibit 21: Arborist Report
Exhibit 22: Parking Analysis
Exhibit 23: Parking Modification Justification
Exhibit 24: Water Availability
Exhibit 25: Sewer Availability
Exhibit 26: Transportation Concurrency
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT
Planning Division
1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2
www.rentonwa.gov
Anyone that would like to be informed of future actions or would like to become a party of record on this
proposal must fill out our online form at https://cutt.ly/SQvBak4 or complete this form and return to: City of
Renton, CED Planning Division, 1055 So. Grady Way, Renton, WA 98057.
Name/File No.: PR22-000345 TA Benson Petro/LUA22-000424
Name: ____________________________________ Email: _________________________ Phone#:__________________
Mailing Address: ____________________________________________ City/State/Zip: ___________________________
Notice will be sent via email, unless a hard copy is specifically requested. Check box to receive via US Mail
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE - MITIGATED (DNS-M)
POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION
DNS-M: The City of Renton Environmental Review Committee (ERC) has determined that the proposed action has
probable significant impacts that can be mitigated through mitigation measures. This DNS-M is issued after using the
optional DNS process in WAC 197-11-355. There is no further comment period.
DATE OF NOTICE OF ENVIRONMENTAL
DETERMINATION:
January 23, 2023
PROJECT NAME/NUMBER: PR22-000345 TA Benson Petro / LUA22-000424, SA-H, ECF,
MOD, MOD
PROJECT LOCATION: 17426 108th Ave SE (APN 2923059017) 10828/10810 SE
Petrovitsky Rd/ (APN 2923059110, 2923059095)
APPLICANT/PROJECT CONTACT
PERSON:
Alicia Baker/abaker@tekindevelopment.com/Tekin & Associates, LLC, 2600
Dallas Parkway, Suite 370, Frisco, TX 35034,
LOCATION WHERE APPLICATION MAY
BE REVIEWED:
Applicant documents are available online through the City of Renton
Document Center website. See also https://cutt.ly/30JF7zZ
PROJECT DESCRIPTION: The applicant is requesting Hearing Examiner Site Plan Review, Environmental
(SEPA) Review, a Parking Modification, and a Street Standards Modification for the construction of a new 4,088 sq. ft.
convenience store, a 2,900 sq. ft. gas station canopy, and a 2,850 sq. ft. bank. The project site is comprised of three
parcels totaling approximately 72,980 sq. ft. (1.68 acres) in area and is located within the Commercial Arterial (CA) zone
and Urban Design District D. Access to the site is proposed via one curb cut off of Benson Dr. SE and one curb cut off of
SE Petrovitsky Rd. Surface parking is proposed for 44 parking spaces. A parking modification was requested to exceed
the maximum number of parking spaces permitted. A street standards modification was requested to vary from the code
required frontage improvements and instead comply with alternative plans that have been adopted by the
Transportation Division for the Benson and Petrovitsky frontages. Slopes with grades less than 25% are mapped on the
northeast corner of the project site. No other critical areas are mapped onsite.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on February 6, 2023.
Appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov or delivered to City Hall 1st floor
Lobby Hub Monday through Friday. The appeal fee, normally due at the time an appeal is submitted, will be collected
at a future date if your appeal is submitted electronically. The appeal submitted in person may be paid on the first floor
in our Finance Department. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and additional information
regarding the appeal process may be obtained from the City Clerk’s Office, cityclerk@rentonwa.gov.
PUBLIC HEARING: If the Environmental Determination is appealed, a public hearing will be set and all parties notified.
NOTICE EXHIBIT 17
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
ENVIRONMENTAL (SEPA) DETERMINATION OF
NON-SIGNIFICANCE - MITIGATED (DNS-M)
Project File Numbers: LUA22-000424, SA-H, ECF, MOD, MOD
Project Name: TA Benson Petro, LLC
Applicant: Alicia Baker, Tekin & Associates, LLC, 2600 Dallas Parkway, Suite 370, Frisco, TX 75034
Project Location: 17426 Benson Dr SE, 10828 & 10810 SE Petrovitsky Rd
Project Description: The applicant is requesting Hearing Examiner Site Plan Review, Environmental (SEPA)
Review, a Parking Modification, and a Street Standards Modification for the construction of a new 4,088 sq. ft.
convenience store, a 2,900 sq. ft. gas station canopy, and a 2,850 sq. ft. bank. The project site is comprised of three
parcels totaling approximately 72,980 sq. ft. (1.68 acres) in area and is located within the Commercial Arterial (CA) zone
and Urban Design District D. Access to the site is proposed via one curb cut off of Benson Dr. SE and one curb cut off of
SE Petrovitsky Rd. Surface parking is proposed for 44 parking spaces. A parking modification was requested to exceed the
maximum number of parking spaces permitted. A street standards modification was requested to vary from the code
required frontage improvements and instead comply with alternative plans that have been adopted by the
Transportation Division for the Benson and Petrovitsky frontages. Slopes with grades less than 25% are mapped on the
northeast corner of the project site. No other critical areas are mapped onsite.
Lead Agency: City of Renton
Environmental Review Committee
Department of Community & Economic Development
Date of Decision: January 23, 2023
Mitigation Measures:
1. The applicant shall implement a contingency mitigation plan to address potential contaminated soil or
groundwater handling and disposal, hazardous waste operations, worker training, health and safety, and
potential contamination remediation.
2. An Inadvertent Discovery Plan (IDP) shall be implemented during project construction for any archeological
resources encountered on the project site.
The City of Renton Environmental Review Committee has determined that probable significant environmental impacts
from the proposed project can be mitigated. An Environmental Impact Statement (EIS) is not required under RCW
43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their
authority of Section 4-9-070D Renton Municipal Code. These conditions are necessary to mitigate environmental impacts
identified during the environmental review process. Because other agencies of jurisdiction may be involved, the lead
agency will not act on this proposal for fourteen (14) days.
Appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov or delivered to City Hall 1st floor
Lobby Hub Monday through Friday. The appeal fee, normally due at the time an appeal is submitted, will be collected at
a future date if your appeal is submitted electronically. The appeal submitted in person may be paid on the first floor in
our Finance Department. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and additional information
regarding the appeal process may be obtained from the City Clerk’s Office, cityclerk@rentonwa.gov.
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Environmental Review Committee Determination
January 23, 2023
Page 2 of 3
SIGNATURES:
Martin Pastucha, Administrator
Public Works, Chair
Date Anjela Barton, Fire Marshal
Renton Regional Fire Authority
Date
Kelly Beymer, Administrator
Parks and Recreation Department
Date Chip Vincent, Administrator Date
Community and Economic Development
DocuSign Envelope ID: AA4FA6BA-AA72-4A92-A78C-D1916105F712
1/23/2023 | 3:36 PM PST
1/23/2023 | 1:24 PM PST
1/23/2023 | 2:00 PM PST
1/23/2023 | 1:53 PM PST
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
EXHIBIT 18
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
WASHINGTON FORESTRY CONSULTANTS, INC.
FORESTRY AND VEGETATION MANAGEMENT SPECIALISTS W F C I
O: 360/943-1723
C: 360/561-4407 9136 Yelm Hwy SE Olympia, WA 98513
URBAN/RURAL FORESTRY • TREE APPRAISAL • TREE RISK ASSESSMENT RIGHT-OF-WAYS • VEGETATION MANAGEMENT • FOREST/TREE MGT. PLANS • EXPERT TESTIMONY Member of International Society of Arboriculture and Society of American Foresters
-Preliminary Tree Protection Plan-
BENSON – PETROVITSKY PROJECT
Benson Drive SE & Petrovitsky Road Renton, WA 98055
Prepared for: Contour, Engineering, LLC
Prepared by: Washington Forestry Consultants, Inc.
Date of Report: December 13, 2022
Introduction
The project proponent is planning to redevelop three parcels totaling 1.67-acres at the corner of Benson Drive SE and Petrovitsky Road in Renton. The proponent has retained WFCI to:
•Evaluate and inventory all trees on the site pursuant to the requirements of the City of
Renton Tree Protection Ordinance.
•Make recommendations for retention of significant trees, along with required protectionand cultural measures.
Observations
Methodology
WFCI has evaluated all trees 6 inches diameter at breast height (DBH) and larger in the proposed project area, and assessed their potential to be incorporated into the new project. Red alder and black cottonwood 8 inches and larger DBH were evaluated. To be a significant tree, it must have
a condition rating of Fair or better. Trees rated as Poor, Very Poor, or Dead or are defective,
diseased and/or in decline and are not long-term trees and are not considered to be significant trees. All off-site trees with driplines or root protection zones (RPZ’s) encroaching the site were assessed as well.
EXHIBIT 21
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 2
The tree evaluation phase used methodology developed by Nelda Matheny and Dr. James Clark in their 1998 publication Trees and Development: A Technical Guide to Preservation of Trees
during Land Development. Site Description The site consists of three parcels totaling 1.67-acres. Parcels numbers are 2923059017,
2923059095, and 2923059110. There are three abandoned buildings on the site. The topography
of the site is flat and the entire site has been previously paved over. The project area is bordered by a church to the north; a commercial building to the east; Petrovitsky Road to the south; and Benson Drive SE and a commercial business to the west.
Soils Description According to the USDA Natural Resource Conservation Service soil survey the two soil types on the project area are vairants of the Arents - Alderwood material.
These soil types are a moderately deep, moderately well drained soil found on glacial till plains.
It is formed in ablation till overlying basal till. A weakly cemented hardpan is at a depth of 20 to 40 inches. Permeability is moderately rapid above the hardpan and very slow in the pan. Available water capacity is low. The effective rooting depth for trees is 20-40 inches. A perched seasonal high-water table is at a depth of 18-36 inches from November to March. The potential for
windthrow of trees is moderate under normal conditions. New trees require irrigation for
establishment. In areas where grading brings the Alderwood hardpan nearer to the surface, the hardpan must be fractured under new trees to provide soil volume for root development and to
improve drainage around the tree.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 3
Figure 1. Benson – Petrovitsky Project Soils Map.
AmB – Arents - Alderwood material 0 – 6%
AmC – Arents - Alderwood material 6 – 15% Existing Tree Conditions There are a total of 8 trees in the project area. The size of trees ranges from 7 inches to 14 inches
in diameter at breast height (DBH). Tree species include black locust (Robinia pseudoacacia),
black cottonwood (Populus trichocarpa), Japanese maple (Acer palmatum), and English yew (Taxus baccata). Tree conditions on the site range from ‘Very Poor’ to ‘Fair,’ with most trees (75%) described as
being in ‘Fair’ condition. Three of the trees were planted as part of the landscape. The remaining
five trees naturally reseeded the site after it was abandoned and are growing through the pavement. Generally, trees on this site are not quality save trees because they are considered invasive or undesirable species around development.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 4
Table 1: List of Trees on the Benson - Petrovitsky Project Area.
Tree # Species DBH (in.) Condition Dripline (feet) Tree Units
Save Based on Condition Alone? Yes or No
Diameter of Root Protection Zone (feet)
Project Plan. Save or Remove
Comment
1 Black Locust 7 Fair 18 4 Yes 6 Remove
2 Cottonwood 10 Fair 16 5 Yes 6 Remove
3 Japanese Maple 11, 12 Poor 13 7 No Remove Stem decay
4 English Yew 10 Fair 8 5 Yes 6 Remove
5 English Yew 12 Fair 6 6 Yes 6 Remove
6 Cottonwood 12 Very Poor 10 6 No Remove
7 Cottonwood 12 Fair 20 6 Yes 6 Remove
8 Cottonwood 14 Fair 20 6 Yes 7 Remove
In summary, only 6 of the 8 significant sized trees could be potentially retained on this site when
only tree health is considered. Only the English yews should be considered for retention. The understory vegetation throughout most of the parcel is broadleaf weeds. Himalayan blackberry (Rubus armeniacus) is also abundant on the parcel.
Photo 1: View of typical trees in the project area.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 5
Off-site Impacts
There are thirteen trees offsite trees along the east property line that have root protection zones
(RPZ) and driplines that extend onto the Benson – Petrovitsky site. The following table is a list of the trees indicating their distance to the property line, amount of overhanging dripline and minimum root protection zone radius on the Benson – Petrovitsky site. These trees were numbered in the field and their relative locations are shown in Attachment 2.
Table 2: Summary of Off-site Trees on Benson – Petrovitsky Project.
Tree # Species DBH (in.) Distance from property line
RPZ on Project Parcel (ft.)
Dripline Over Project Parcel (ft.)
9 Douglas-fir 26 6 7 20
10 Douglas-fir 25 6 7 17
11 Bigleaf Maple 10 5 0 15 12 Douglas-fir 18 6 3 11
13 Bigleaf Maple 8,10 1 5 15
14 Douglas-fir 20 6 4 13
15 Bigleaf Maple 6 – 10 8 0 12
16 Douglas-fir 21 6 5 13
17 Douglas-fir 18 6 3 12
18 Douglas-fir 23 6 6 17
19 Douglas-fir 18 6 3 19
20 Douglas-fir 19 6 4 14
21 Douglas-fir 24 6 6 12
Based on our initial assessment of the offsite trees the impacts from grading will be insignificant.
There will be minor incursion into the RPZ of the trees, but tree health and stability will not be
compromised. Trees with driplines that overhang the parcel will need to be side pruned to achieve clearance on the project parcel. Discussion Potential for Tree Retention
Only 6 of the 8 trees are considered significant. The location of the 6 healthy trees makes retention
impossible based on the proposed site plan. Black locust and cottonwood are both a species not recommended for retention around developments. The trees not planted as landscape are growing through cracks in the asphalt and in the footprints of demolished buildings. No trees onsite are recommended to save.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 6
Tree Density Calculations
Title 4-4-130H of the Renton Municipal Code (RMC) requires 30% of the significant trees on the site to be retained. There are a total of 8 significant sized trees on the parcel, 6 of which are healthy
long-term trees. A total of 2 significant trees will need to be retained in the project area to meet
the requirement. Additionally, RMC requires a minimum tree credit density of 30 tree credits per acre of net developable acreage. A total of 50.0 tree credits will need to be retained on the 1.67-acre site.
The following is a summary of the projected tree density requirements:
Total # of Significant Trees 8 Trees # of Unhealthy Significant Trees 2 Trees # of Healthy Significant Trees 6 Tree
Minimum # of Significant Trees Required to be Saved 2 Tree # of Significant Trees Planned to be Saved 0 Trees Shortfall of Significant Tree Requirement -2 Tree
Net Developable Acres: 1.67 Acres Required Tree Credit Density (1.67 Acres x 30 Credits/Acre): 50.0 Tree Credits Proposed Tree Retention:
Developed Areas (0 trees) 0.0 Tree Credits Shortfall of Tree Credit Requirement: -50.0 Tree Credits By retaining 0 of the significant trees on the site, this plan falls short of the minimum significant
tree retention requirement by 2 trees. Required tree credit retention falls short of the minimum tree credits by 50.0 credits. An additional 45 tree credits will be required to replace the 30% significant tree shortfall. When the required number of protected trees cannot be retained, replacement trees, with at least a two-inch (2") caliper deciduous or an evergreen at least six feet (6') tall, shall be planted based on the tree credit value of each protected tree removed. A fee in
lieu of tree planting, the cost of which can be determined by the City of Renton can also substitute
for tree replacement if replanting on-site is not feasible. Recommendations
Tree Protection Measures
Off-site edge trees must be protected during construction by a temporary chain-link fence (Attachment 7), located at the property line. Placards shall be placed on the fencing every 50 feet indicating the words, "NO TRESPASSING - Protected Trees". The individual tree RPZ is the dripline (6 feet minimum), unless otherwise delineated by WFCI in the field. If approved, the silt-
fence could double as the tree protection fence for select off-site trees.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 7
Tree protection fences should be placed around the edge of the root protection zone (RPZ). The
fence should be erected after logging but prior to the start of clearing. The fences should be
maintained until the start of the landscape installation. There should be no equipment activity (including rototilling) within the root protection zone. No irrigation lines, trenches, or other utilities should be installed within the RPZ. Cuts or fills should
impact no more than 20% of a tree’s root system. If topsoil is added to the root zone of a protected
tree, the depth should not exceed 2 inches of a sandy loam or loamy fine sand topsoil and should not cover more than 20% of the root system. If roots are encountered outside the RPZ during construction, they should be cut cleanly with a
saw and covered immediately with moist soil. Noxious vegetation within the root protection zone
should be removed by hand. If a proposed save tree must be impacted by grading or fills more than allowed for by WFCI in the tree list, then the tree should be re-evaluated by WFCI to determine if the tree can be saved with mitigating measures, or if the tree should be removed.
Pruning and Thinning
Pruning should be done to coincide with land clearing, to facilitate clean-up and while access to the trees is available (before houses are constructed). All individual trees to be saved near or within developed areas should have their crowns raised to
provide a minimum of 8 feet of ground clearance over sidewalks and landscape areas, 15 feet over
parking lots or streets, and at least 10 feet of building clearance. Care will need to be taken to avoid trespass when pruning offsite trees. This is best achieved by getting cooperation and permission from the tree owner. If no permission is obtained, then legally one cannot prune beyond the property line – ground to sky.
All pruning should be done according to the ANSI A300 standards for proper pruning, and be completed by an International Society of Arboriculture Certified Arborist®, or be supervised by a Certified Arborist®.
Conclusions and Timeline for Activity
1. No significant trees are proposed to be retained on the site. 2. The final, approved tree protection plan map should be included in the construction drawings
for bid and construction of the project and should be labeled as such. 3. Stake and heavily flag the clearing limits. 4. Contact WFCI to attend pre-job conference and discuss tree protection issues with contractors. WFCI can verify all trees to be saved and/or removed are adequately marked. 5. Conduct logging. Complete necessary hazard tree removals and invasive plant removals from
the tree protection areas. No equipment should enter the tree protection areas during logging. 6. Before land clearing is complete, do all necessary pruning on off-site trees to provided clearances.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 8
7. Contact WFCI to inspect the tree tracts after logging, but prior to land clearing to identify any additional hazard trees that should be removed.
8. Install tree protection fences along the 'limits of construction'. The fences should be located at
the limits of construction or at the dripline of the save tree or as otherwise specified by WFCI. Maintain fences throughout construction. 9. Complete clearing of the project. 10. Do not excavate stumps within 10’ of trees to be saved. These should be individually
evaluated by WFCI to determine the method of removal.
11. Complete grading and construction of the project. 12. Contact WFCI to final inspect the tree protection areas after grading. Summary
The City of Renton Municipal Code calls for 2 of the healthy, significant trees and 50.0 tree credits be retained on the site. Based on the current site plan, no existing trees will be retained because all healthy, significant trees are under the footprint of proposed improvements. Fifty tree credits
are required to replace the shortfall. An additional 45 tree credits will be required to replace the
30% significant tree requirement. Thirteen offsite trees will require coordination with the neighboring property owner to achieve clearances.
Please give us a call if you have any questions. Respectfully submitted, Washington Forestry Consultants, Inc.
Galen M. Wright, ACF, ASCA Joshua Sharpes ISA Bd. Certified Master Arborist PN-129BU Professional Forester Certified Forester No. 44 ISA Certified Arborist®, ISA Tree Risk Assessor Qualified Municipal Specialist, PN- 5939AM ASCA Tree and Plant Appraisal Qualified ISA Tree Risk Assessor Qualified
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 9
Attachment 1. Aerial Photo of Benson - Petrovitsky Project Area
(King County iMap 2021)
Project Area Boundary
Healthy Tree
Unhealthy Tree
Offsite Tree
1 2 3
4 5
6
7 8
21
20
19
18
17
9
10
11
12
13
14
15
16
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 10
Attachment 2. Benson – Petrovitsky Project Site Plan
Project Boundary
Tree Protection Fence Location
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 11
Attachment 3. Individual Tree Rating Key for Tree Condition
RATING SYMBOL DEFINITION
Very Good VG • Balanced crown that is characteristic of the species
• Normal lateral and terminal branch growth rates for the species and soil type
• Stem sound, normal bark vigor
• No root problems
• No insect or disease problems
• Long-term, attractive tree Good G • Crown lacking symmetry but nearly balanced
• Normal lateral and terminal branch growth rates for the species and
soil type
• Minor twig dieback O.K.
• Stem sound, normal bark vigor
• No root problems
• No or minor insect or disease problems – insignificant
• Long-term tree
Fair F • Crown lacking symmetry due to branch loss
• Slow lateral and terminal branch growth rates for the species and soil type
• Minor and major twig dieback – starting to decline
• Stem partly unsound, slow diameter growth and low bark vigor
• Minor root problems
• Minor insect or disease problems
• Short-term tree 10-30 years
RATING SYMBOL DEFINITION
Poor P • Major branch loss – unsymmetrical crown
• Greatly reduced growth
• Several structurally import dead or branch scaffold branches
• Stem has bark loss and significant decay with poor bark vigor
• Root damage
• Insect or disease problems – remedy required
• Short-term tree 1-10 years
Very Poor VP • Lacking adequate live crown for survival and growth
• Severe decline
• Minor and major twig dieback
• Stem unsound, bark sloughing, previous stem or large branch failures, very poor bark vigor
• Severe root problems or disease
• No or minor insect or disease problems
• Mortality expected within the next few years Dead DEAD • Dead
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 12
Cultural Care Needs:
ABBRV. ACTIVITY DESCRIPTION
CC Crown Cleaning Pruning of dead, dying, diseased, damaged, or defective branches over 1/2 inch in diameter –includes removal of dead tops
CT Crown Thinning Pruning of branches described in crown cleaning, plus thinning of up to 20% of the live branches over ½ inch diameter. Branch should be 1/3 to ½ the diameter of the lateral branch. Thinning should be well distributed throughout crown of tree, and should release healthy, long-term branches. RC Crown Reduction Reduction of the crown of a tree by pruning to lateral branches. Generally used to remove declining branches or to lighten end weight on long branches.
CR Crown Raising Pruning of lower branches to remove deadwood or to provide ground or building clearances. RMV Remove Remove tree due to decline or hazardous conditions that cannot be mitigated by pruning.
RS Remove Sprouts Remove basal sprouts from stem of tree.
Rep Replace Tree is small – is in decline or dead. Replace with suitable tree species. HT Hazard Tree Tree is hazardous and cannot be mitigated by pruning. Recommendation is to remove tree.
None No Work No work necessary at this time.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 13
Attachment 4. Description of Tree Evaluation Methodology The evaluation of the tree condition on this site included the visual assessment of:
1. Live-crown ratio, 2. Lateral and terminal branch growth rates, 3. Presence of dieback in minor and major scaffold branches and twigs, 4. Foliage color, 5. Stem soundness and other structural defects,
6. Visual root collar examination, 7. Presence of insect or disease problems. 8. Windfirmness if tree removal will expose this tree to failure. In cases where signs of internal defect or disease were suspected, a core sample was taken to look
for stain, decay, and diameter growth rates. Also, root collars were exposed to look for the presence of root disease. In all cases, the overall appearance of the tree was considered relative to its ability to add value to either an individual lot or the entire subdivision. Also, the scale of the tree and its proximity
to both proposed and existing houses was considered. Lastly, the potential for incorporation into the project design is evaluated, as well as potential site plan modifications that may allow otherwise removed tree(s) to be both saved and protected in the development.
Trees that are preserved in a development must be carefully selected to make sure that they can survive construction impacts, adapt to a new environment, and perform well in the landscape. Healthy, vigorous trees are better able to tolerate impacts such as root injury, changes in soils moisture regimes, and soil compaction than are low vigor trees.
Structural characteristics are also important in assessing suitability. Trees with significant decay and other structural defects that cannot be treated are likely to fail. Such trees should not be preserved in areas where damage to people or property could occur.
Trees that have developed in a forest stand are adapted to the close, dense conditions found in such stands. When surrounding trees are removed during clearing and grading, the remaining trees are exposed to extremes in wind, temperature, solar radiation, which causes sunscald, and other influences. Young, vigorous trees with well-developed crowns are best able to adapt to these changing site conditions.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 14
Attachment 5. Glossary of Forestry and Arboricultural Terminology
DBH: Diameter at Breast Height (measured 4.5 ft. above the ground line on the high side of the tree).
Live Crown Ratio: Ratio of live foliage on the stem of the tree. Example: A 100’ tall tree with
40 feet of live crown would have a 40% live crown ratio. Conifers with less than 30%
live crown ratio are generally not considered to be long-term trees in forestry.
Crown: Portion of a trees stem covered by live foliage.
Crown Position: Position of the crown with respect to other trees in the stand.
Dominant Crown Position: Receives light from above and from the sides.
Codominant Crown Position: Receives light from above and some from the sides.
Intermediate Crown Position: Receives little light from above and none from the sides. Trees
tend to be slender with poor live crown ratios.
Suppressed Crown Position: Receives no light from above and none from the sides. Trees
tend to be slender with poor live crown ratios.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 15
Attachment 6. Tree Protection Fence Detail
6 ft. Temporary Chain Link Fence
NO TRESPASSING - Protected Trees
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Benson – Petrovitsky Project – Preliminary Tree Protection Plan
Washington Forestry Consultants, Inc. Page 16
Attachment 7. Assumptions and Limiting Conditions
1) Any legal description provided to the Washington Forestry Consultants, Inc. is assumed to be correct. Any
titles and ownership's to any property are assumed to be good and marketable. No responsibility is assumed for matters legal in character. Any and all property is appraised or evaluated as though free and clear, under
responsible ownership and competent management.
2) It is assumed that any property is not in violation of any applicable codes, ordinances, statutes, or other governmental regulations, unless otherwise stated.
3) Care has been taken to obtain all information from reliable sources. All data has been verified insofar as
possible; however, Washington Forestry Consultants, Inc. can neither guarantee nor be responsible for the accuracy of information.
4) Washington Forestry Consultants, Inc. shall not be required to give testimony or to attend court by reason of this report unless subsequent contractual arrangements are made, including payment of an additional fee for such services as described in the fee schedule and contract of engagement.
5) Loss or alteration of any part of this report invalidated the entire report.
6) Possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person to whom it is addressed, without the prior expressed written or verbal consent of Washington Forestry Consultants, Inc.
7) Neither all or any part of the contents of this report, nor copy thereof, shall be conveyed by anyone, including the client, to the public through advertising, public relations, news, sales or other media, without the prior expressed written or verbal consent of Washington Forestry Consultants, Inc. -- particularly as to value conclusions, identity of Washington Forestry Consultants, Inc., or any reference to any professional society or to any initialed designation conferred upon Washington Forestry Consultants, Inc. as stated in its qualifications.
8) This report and any values expressed herein represent the opinion of Washington Forestry Consultants, Inc., and the fee is in no way contingent upon the reporting of a specified value, a stipulated result, the occurrence neither of a subsequent event, nor upon any finding in to reported. 9) Sketches, diagrams, graphs, and photographs in this report, being intended as visual aids, are not necessarily to scale and should not be construed as engineering or architectural reports or surveys. 10) Unless expressed otherwise: 1) information contained in this report covers only those items that were examined and reflects the condition of those items at the time of inspection; and 2) the inspection is limited to visual examination of accessible items without dissection, excavation, probing, or coring. There is no warranty or guarantee, expressed or implied, that problems or deficiencies of the tree or other plant or property in question may not arise in the future.
Note: Even healthy trees can fail under normal or storm conditions. The only way to eliminate all risk is to remove all trees within reach of all targets. Annual inspections by an ISA Certified Arborist or Certified Forester will reduce the potential of tree failures. It is impossible to predict with certainty that a tree will stand or fail, or the timing of the failure. It is considered an ‘Act of God’ when a tree fails, unless it is directly felled or pushed over by man’s actions.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 1 of 3
CITY OF RENTON Ι PERMIT CENTER
TREE RETENTION AND CREDIT WORKSHEET
TREE RETENTION REQUIREMENTS
A minimum retention of thirty percent (30%) of all significant trees (as defined in RMC 4-11-200) is required on site.
Please complete the form below to verify compliance with minimum tree retention requirements.
• Identify total number of trees 6-inch caliper or greater (or alder or
cottonwood trees 8-inch caliper or greater) on site: Trees
Trees
Trees
Trees
Trees
Trees Required
Trees Proposed
•Deductions – Certain trees are excluded from the retention calculation:
o Trees that are high-risk, as defined in RMC 4-11-200:
o Trees within existing and proposed public right-of-way:
o Trees within wetlands, streams, very high landslide hazards,
protected slopes, and associated buffers:
•Total remaining trees after deductions:
•Required tree retention (30%):
•Identify number of trees proposed for retention:
•Identify number of trees requested for replacement in lieu of retention
(skip page 3 if no tree replacement is requested):Trees
TREE CREDIT REQUIREMENTS
Tree credit requirements apply at a minimum rate of thirty (30) credits per net acre. Complete the form below to
determine minimum tree credit requirements.
•Gross area of property in square feet: Square Feet
•Deductions: Certain areas are excluded from tree credit calculation:
o Existing and proposed public right-of-way: Square Feet
o Wetlands, streams, very high landslide hazards, protected slopes,
and associated buffers: Square Feet
•Total excluded area:Square Feet
•Net land area (after deductions) in square feet:Square Feet
•Net land area (after deductions) in acres:Acres
•Required tree credits:Tree Credits Required
EXHIBIT 20
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
8
2
0
0
6
1.7999999999999998
0
1.7999999999999998
72745
0
72745
1.6699954086317723
50.099862258953166
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 2 of 3
TREE RETENTION AND CREDIT WORKSHEET
PROPOSED TREE CREDITS
Please complete the table below to calculate the total tree credits proposed for your project. Identify the quantity of trees
for each tree category, after deducting trees within excluded areas, as shown in the previous section.
TREE SIZE TREE CREDITS TREE QUANTITY TOTAL TREE CREDITS
RETAINED TREES
Preserved tree 6 – 9” caliper 4
Preserved tree 10 – 12” caliper 5
Preserved tree 12 – 15” caliper 6
Preserved tree 16 – 18” caliper 7
Preserved tree 19 – 21” caliper 8
Preserved tree 22 – 24” caliper 9
Preserved tree 25 – 28” caliper 10
Preserved tree 29 – 32” caliper 11
Preserved tree 33 – 36” caliper 12
Preserved tree 37” caliper and greater 13
NEW TREES
New small species tree (30' or less at maturity) 0.25
New medium species tree (30' to 50' at maturity)
1
New large species tree (50' or more at maturity) 2
TREE CREDITS PROPOSED:
38
42
7
65.5
0
0
0
0
0
0
0
0
0
0
9.5
42
14
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 3 of 3
TREE RETENTION AND CREDIT WORKSHEET
TREE REPLACEMENT JUSTIFICATION
Replacement may be authorized as an alternative to 30% retention provided the removal is the minimum necessary to
accomplish the desired purpose and provided the proposal meets one of the following options:
a. There are special circumstances related to the size, shape, topography, location, or surroundings of the subject
property; or
b. The strict application of the code would prevent reasonable use of property; or
c. The strict application of the code would prevent compliance with minimum density requirements of the zone; or
d. The project is a short plat with four (4) or fewer lots.
Please attach a written justification demonstrating compliance with the requirements and criteria as descripted above.
TREE REPLACEMENT QUANTITY
Tree replacement quantity is determined based on the credit value of the trees proposed for removal. Larger, higher
priority trees shall be used for calculation of tree replacement. Identify the quantity of each tree requested to be removed
in lieu of 30% retention, based on tree size. List the identification number of each tree, as indicated in the arborist report.
TREE SIZE TREE CREDITS TREE QUANTITY TREE INDENTIFICATION # TOTAL TREE CREDITS
Tree 37” caliper + 13
Tree 33 – 36” caliper 12
Tree 29 – 32” caliper 11
Tree 25 – 28” caliper 10
Tree 22 – 24” caliper 9
Tree 19 – 21” caliper 8
Tree 16 – 18” caliper 7
Tree 12 – 15” caliper 6
Tree 10 – 12” caliper 5
Tree 6 – 9” caliper 4
REPLACEMENT CREDITS REQUIRED:
TREE REPLACEMENT PLANTING
Identify the quantity of proposed new replacement trees (minimum size of 2-inch caliper). The total replacement credits
proposed should be equal to or greater than the replacement credits required, as shown in the previous section.
TREE SIZE TREE CREDITS TREE QUANTITY TOTAL TREE CREDITS
New small species tree (30' or less at maturity) 0.25
New medium species tree (30' to 50' at maturity)
1
New large species tree (50' or more at maturity) 2
REPLACEMENT CREDITS PROPOSED:
1
4
2
1
45
3
5, 6, 7, 8
2, 4
1
0
0
0
0
0
0
7
24
10
4
0
0
0
0
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
Transportation Planning | Design | Traffic Impact & Operations
11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747
MEMORANDUM
DATE: October 28, 2022
TO: Jill Ding
City of Renton
FROM: Amy Wasserman / Jeff Schramm
TENW
SUBJECT: Street Modification Request
Benson-Petrovitsky Retail (PRE22-000218)
TENW Project #2022-257
This memorandum documents the street modification request prepared for the proposed Benson-Petrovitsky
Retail project located on the northeast corner of Benson Drive S (SR 515) and SE Petrovitsky Road (SE 176th
St) in Renton. The purpose of this document is to present the proposed improvements to Benson Drive S and
SE Petrovitsky Road as part of a formal street modification request to the City of Renton.
Project Description
The project site is located on three adjacent parcels (#2923059110, #2923059095, and
#2923059017) on the northeast corner of the intersection of Benson Drive S (SR 515) and SE Petrovitsky
Road (SE 176th Street) in Renton as shown in the Attachment A vicinity map. The proposed project would
consist of up to 4,088 square feet (SF) of building area for a convenience market with gasoline pumps (8
vehicle fueling positions (VPDs)) and a 2,850 SF bank with a drive-thru ATM lane.
Vehicular access to the site would be provided by two right-in right-out (RIRO) only driveways; one each on
SE Petrovitsky Road and Benson Drive S. A preliminary site plan is included in Attachment B.
Street Modification Justification
The proposed roadway design and frontage improvements on SE Petrovitsky Road and Benson Drive S
deviate from the standards outlined in the City of RentonÊs Municipal Code (RMC) 4-6-060. However, the
proposed design is consistent with the planned improvements included in the City of RentonÊs 2022-2027
Transportation Improvement Program (TIP) for the Carr Road corridor (City TIP #31) and also identified in the
preliminary (pre-30%) design plans for the intersection improvements prepared by the CityÊs Transportation
Division in 2014/2015. Due to the proposed frontage design being required by the City, a street
modification is required to allow a modification to the standard frontage design along both roads.
Additionally, all of the conditions identified by the City of Renton as required project mitigation on the SE
Petrovitsky Road and Benson Drive S frontages are being met with the design of the Benson-Petrovitsky Retail
project as further described next.
EXHIBIT 27
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 2
SE Petrovitsky Road (176th St SE)
SE Petrovitsky Road (176th St SE) is a five lane Principal Arterial. Per Renton Municipal Code (RMC) 4-6-
060, minimum ROW width required on a five-lane principal arterial is 103 feet (half-street ROW=51.5 feet).
Based on existing survey, the existing half street ROW width on the site frontage is approximately as follows:
o 42.0 feet along parcel #2923059110
o 30.0 feet along parcel #2923059095
o 42.0 feet along parcel #2923059017
Street frontage improvements on the north side of SE Petrovitsky Road identified in the CityÊs Transportation
Division preliminary plan for TIP #31 include roadway widening to provide an additional 11-foot wide right-
turn only lane, 0.5-foot-wide curb, 8-foot-wide landscaped planter, 12-foot wide sidewalk, and a 2-foot clear
area from back of sidewalk to the new ROW line.
These street and frontage improvements identified by the City Transportation Division to be provided by the
developer will require varying ROW dedication along the frontage of the 3 parcels. Subject to final survey,
the ROW dedication width on the site frontage is anticipated to be as follows to provide a total future half-
street public ROW of 61.5 feet along the Benson-Petrovitsky Retail project frontage:
o 19.5 feet along parcel #2923059110
o 31.5 feet along parcel #2923059095
o 19.5 feet along parcel #2923059017
A street section showing and labelling the existing ROW line, centerline of ROW, ROW dedication,
centerline of pavement, pavement width, showing and labelling all the street frontage elements and widths is
provided in Attachment B and will be included with the land use application.
Benson Drive S (108th Ave SE/ SR 515)
Benson Drive S (108th Ave SE/ SR 515) is a Principal Arterial. Per Renton Municipal Code (RMC) 4-6-060,
the minimum ROW width required on a five-lane principal arterial is 103 feet (half-street ROW = 51.5 feet).
Based on existing survey, the existing half street ROW width on the Benson Drive S site frontage is
approximately 45 feet.
Street frontage improvements on the east side of Benson Drive S identified per RMC 4-6-060 and also
included in the CityÊs Transportation Division preliminary plan for TIP #31 include roadway widening to
provide an 11-foot-wide acceleration lane, 0.5-foot-wide curb, 8-foot-wide landscaped planter, 8-foot-wide
sidewalk, and 2-foot clear width from the back of sidewalk to the new ROW line.
The street and frontage improvements identified by the City Transportation Division to be provided by the
developer will require a ROW dedication of 17.5-ft and the total future half-street public ROW would be
62.5 feet along the Benson-Petrovitsky Retail project frontage.
A street section showing and labelling the existing ROW line, centerline of ROW, ROW dedication,
centerline of pavement, pavement width, showing and labelling all the street frontage elements and widths is
provided in Attachment B and will be included with the land use application.
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 3
Compliance with Decision Criteria
The street and frontage improvements to be constructed on SE Petrovitsky Road and Benson Drive S by the
Benson-Petrovitsky Retail project would meet all of the following decision criteria outlined in Renton Municipal
Code (RMC) 4-9-250-D-2 related to a modification request:
A) Substantially implements the policy direction of the policies and objectives of the Comprehensive Plan
Land Use Element and the Community Design Element and the proposed modification is the minimum
adjustment necessary to implement these policies and objectives;
B) Will meet the objectives and safety, function, appearance, environmental protection and
maintainability intended by the Code requirements, based upon sound engineering judgement;
C) Will not be injurious to other property(ies) in the vicinity;
D) Conforms to the intent and purpose of the Code;
E) Can be shown to be justified and required for the use and situation intended
F) Will not create adverse impacts to other property(ies) in the vicinity.
Conclusion
The applicant for the proposed Benson-Petrovitsky Retail project requests the CityÊs approval of street
modifications for the SE Petrovitsky Road and Benson Drive S frontage improvements associated with the
Benson-Petrovitsky Retail project since the street and frontage improvements being constructed by the project
on both SE Petrovitsky Road and Benson Drive S are being required by the City as part of a planned TIP
project for the Carr Road corridor (TIP #31).
If you have any questions regarding the information presented in this memo, please contact me at
amy@tenw.com.
Attachments
c: Michelle Woodward, Tekin & Associates
Jeff Schramm, Principal TENW
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
TENW October 28, 2022
Page 4
ATTACHMENT A
Site Vicinity
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Street Modification Request
Benson-Petrovitsky Retail (Renton)
ATTACHMENT B
Site Plan with Street Sections
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
RIGHT OF WAY
DEDICATION
RIGHT OF WAY
DEDICATION
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1 INCH = 20 FEET (22"x34")
GRAPHIC SCALE
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1 INCH = 40 FEET (11"x17")
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BENSON AND PETROVITSKY REDEVELOPMENT
A PORTION OF SECTION 29, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M.,
CITY OF RENTON, KING COUNTY, WASHINGTON
J. RAUSCH
B. ALLEN
J. RAUSCH
29 23N 05E
2022.10.25
19-045
19-045-C
C1
1 4
CALL 811 AT LEAST 48
HOURS BEFORE YOU DIG
VERIFICATION NOTE
ALL EXISTING UTILITIES IN THE CONSTRUCTION AREA SHALL BE
IDENTIFIED AND VERIFIED FOR DEPTH AND LOCATION PRIOR TO ANY
CONSTRUCTION ACTIVITIES SO TO IDENTIFY ANY POTENTIAL CONFLICTS
WITH PROPOSED CONSTRUCTION. CONTACT PROJECT ENGINEER
IMMEDIATELY IF ANY CONFLICTS ARE IDENTIFIED.
PRIOR TO ANY CONSTRUCTION ACTIVITIES, VERIFY EXISTING
TOPOGRAPHY IS CONSISTENT WITH WHAT IS SHOWN ON PLANS AND IF
THERE ARE ANY POTENTIAL CONFLICTS WITH PROPOSED CONSTRUCTION
ACTIVITIES. CONTACT PROJECT ENGINEER IMMEDIATELY IF ANY
CONFLICTS ARE IDENTIFIED.
GENERAL SITE INFORMATION
SITE ADDRESS:17,426 BENSON DRIVE S, RENTON, WA 98005
PARCEL#:2923059110, 2923059095, 2923059017
ON-SITE PROJECT AREA: 73,002 SF (1.68 ACRES)
TOTAL NEW+REPLACED IMPERVIOUS AREA:47,705 SF (1.10 ACRES)
TA ACQUISITIONS LLC
2600 N DALLAS PARKWAY, SUITE 370
FRISCO, TEXAS 75034
OWNER/APPLICANT
JOHN GRAVES ARCHITECTS & PLANNERS
3110 RUSTON WAY, SUITE D
TACOMA, WA 98402
PHONE: 253-272-4214
ARCHITECT
CONTOUR ENGINEERING LLC
4706 97TH ST NW, SUITE 100
GIG HARBOR, WA 98332
PHONE: (253) 857-5454
CIVIL ENGINEER
PROPOSED 7-11
4,178SF
PROPOSED
CHASE BANK
2,860 SF
DIESEL/GASOLINE TANKS
FUEL PUMPS
PROPOSED ATM
7.5'
PLANTER
8.0' SIDEWALK
1.5%
2.0' TO ROW
0.5' CURB
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54.0' PUBLIC RIGHT OF WAY 45' EXISTING PUBLIC RIGHT OF WAY
33.0'±33.0'±21.0'
C BENSON CROSS SECTION
NOT TO SCALE
AC1
C
C1
11.0' ACCELERATION
LANE
5.5'
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12.0' SIDEWALK
1.5%
2.0' TO ROW
0.5' CURB EX
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EXISTING 42.0' PUBLIC RIGHT OF WAY
28.0'±33.0'±9.0'
A PETROVITSKY CROSS SECTION
NOT TO SCALE
11.0' RIGHT
TURN LANE
2.0'EXISTING CURB
TO BE REMOVED
19.5' ROW
DEDICATION VARIES
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EXISTING CURB
TO BE REMOVED
17.5' ROW DEDICATION
2.0'
MATCH EXISTING
PAVEMENT SECTION
EXISTING 42.0' PUBLIC RIGHT OF WAY
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'
MATCH EXISTING
PAVEMENT SECTIONLANE LINE
SAWCUT LINE
LANE LINE SAWCUT LINE
5.5 ±
2.5 ±
62.5' PROPOSED PUBLIC RIGHT OF WAY
75' ± PROPOSED PAVEMENT WIDTH
72' ± PROPOSED PAVEMENT WIDTH
61.5' PROPOSED PUBLIC RIGHT OF WAY
2.5'
PLANTER
0.5'
PLANTER
8.0'
PLANTER
12.0' SIDEWALK
1.5%
2.0' TO ROW
0.5' CURB EX
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28.0'±33.0'±9.0'
B PETROVITSKY CROSS SECTION
NOT TO SCALE
9.0' RIGHT
TURN LANE
2.0'EXISTING CURB
TO BE REMOVED
31.5' ROW DEDICATION VARIES
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2.5 ±
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61.5' PROPOSED PUBLIC RIGHT OF WAY
BC1 AC1
2.0' RIGHT
TURN LANE
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
EXHIBIT 22
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Certificate :5110This certificate provides
information necessary to
evaluate development
proposals.
Applicant's Name:Alicia Baker
Proposed Use:Commercial building permit
Type:Commercial :
SOOS CREEK WATER AND SEWER DISTRICT
CERTIFICATE OF WATER AVAILABILITY
Location:Development:Lot: Block:
Address:Parcel:292305 9017
Information:Includes lots 292305 9095 & 292305 9110, Convenience store/gas
station/bank
a
b
Water main fronting south side of property along SE Petrovitsky Rd. Final water requirements and
layout will be based on the final site development plan, road, storm, grading and fire marshal
requirements
2.
1.
The water system is in conformance with a County approved water comprehensive plan.
The water system improvement will require a water comprehensive plan amendment.
The proposed project is within the corporate limits of the district, or has been granted Boundary Review
Board approval for extension of service outside the district or city, or is within the County approved
service area of a private water purveyor.
Annexation or Boundary Review Board approval will be necessary to provide service.
4.
Water will be provided by service connection only to an existing 8" water main, 8 feet from the site.
WATER PURVEYOR INFORMATION
Water service will require an improvement to the water system of:
Water is/or will be available at the rate of flow and duration indicated below at no less than 20 psi
measured at the nearest fire hydrant 5' feet from the building/property (or as marked on the attached
map):
a
Rate of Flow:1000 Duration:2
b Water system is not capable of providing fire flow.
Connection Charge:yes, currently connected under tap permit # 01537
Easement (s):
Other: Will require oil and water separator, see 1b
a
b
c
5. Service is subject to the following:
a
b
a
b
3.
gpm hours
Signature DateTitle
Agency Name Signatory Name
Service is subject to the applicants agreement to comply and perform to make such installation
and/or connections to the standards, regulations, requirements and conditions of this District and
such other agency or agencies having jurisdiction. This District is not representing that its
facilities will be extended or otherwise modified to make such service available to the applicant.
It is the responsibility of the applicant to make any required extension of facilities to serve their
property.
SOOS CREEK WATER & SEWER DISTRICT
I hereby certify that the above water purveyor information is true. This certification shall be valid for one
year from date of signature.
Date
Keely Hogan 8/8/2022
Soos CreekWater & Sewer District "rptAvailSingleParcelAddWater" 2/6/96
Cross Connection Control devices must be in conformance with state laws.
DE Dept Lead 8/8/22
EXHIBIT 24
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
Transportation Planning | Design | Traffic Impact & Operations
11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747
MEMORANDUM
DATE: September 16, 2022
TO: Jill Ding
City of Renton
FROM: Amy Wasserman
TENW
SUBJECT: Parking Modification Request
Benson-Petrovitsky Retail (PRE22-000218)
TENW Project #2022-257
This memorandum documents the parking modification request prepared for the proposed Benson-Petrovitsky
Retail project located on the northeast corner of Benson Drive S (SR 515) and SE Petrovitsky Road (SE 176th
St) in Renton. A parking modification request is allowed by Renton Municipal Code (RMC) 4-4-080 (F).
Project Description
The project site is located on three adjacent parcels on the northeast corner of the intersection of Benson Drive
S (SR 515) and SE Petrovitsky Road (SE 176th Street) in Renton as shown in the Attachment A vicinity map.
The proposed project would consist of up to 4,088 square feet (SF) of building area for a convenience market
with gasoline pumps (8 vehicle fueling positions (VPDs)) and a 2,850 SF bank with a drive-thru ATM lane.
Based on information provided by the applicant, tenants have been identified for each land use: Chase
would occupy the drive-in bank and 7-11 would occupy the convenience market/gas station.
Vehicular access to the site would be provided by two right-in right-out (RIRO) only driveways; one each on
SE Petrovitsky Road and Benson Drive S. A preliminary site plan is included in Attachment B.
City of Renton Code-Required Parking
Table 1 summarizes the minimum and maximum parking requirements for the Benson-Petrovitsky Retail uses
based on the City of RentonÊs Municipal Code (RMC) 4-4-080.
Table 1
City of Renton Municipal Code – Benson-Petrovitsky Retail Parking Demand
Building MINIMUM MAXIMUM
Use
Area
Size
Code Required
Parking Ratio1
Required
Parking (stalls)
Code Required
Parking Ratio1
Required
Parking (stalls)
Retail 2 4,100 SF 2.5 per 1,000 SF GFA 10 2.5 per 1,000 SF 10
Bank 2,850 SF 2.5 per 1,000 SF GFA 7 5 per 1,000 SF 14
TOTAL 17 24
1) City of Renton’s Municipal Code (RMC) 4-4-080.
2) RMC 4-4-080 (F) does not have specific parking requirements for convenience market/gas station uses. As a result, retail was
assumed for the proposed 7-11 gas station.
EXHIBIT 23
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
TENW September 16, 2022
Page 2
As shown in Table 1, the minimum and maximum required parking for the Benson-Petrovitsky Retail site would
be 17 and 24 parking stalls, respectively. Since more than the City code allowed maximum parking is
proposed by the project, a parking modification is proposed; this is described next.
Parking Modification Decision Criteria
The Benson-Petrovitsky Retail project is proposing to provide a total of 44 parking stalls, which is greater than
the maximum parking allowed based on the CityÊs code as described above (24 stalls).
Based on Renton Municipal Code (RMC) 4-4-080 (F), a parking modification request is required for
developments proposing greater than 25 percent of the maximum number of permitted parking spaces. The
parking modification request must be in accordance with RMC 4-9-250 (D) and provide justification for
meeting the following decision criteria:
Renton Municipal Code (RMC) 4-9-250 (D)
Decision Criteria: Whenever there are practical difficulties involved in carrying out the provisions of
this Title, the Department Administrator may grant modifications for individual cases provided he/she
shall first find that a specific reason makes the strict letter of this Code impractical, that the intent and
purpose of the governing land use designation of the Comprehensive Plan is met and that the
modification is in conformity with the intent and purpose of this Code, and that such modification:
A) Substantially implements the policy direction of the policies and objectives of the
Comprehensive Plan Land Use Element and the Community Design Element and the proposed
modification is the minimum adjustment necessary to implement these policies and objectives;
B) Will meet the objectives and safety, function, appearance, environmental protection and
maintainability intended by the Code requirements, based upon sound engineering
judgment;
C) Will not create substantial adverse impacts to other property(ies) in the vicinity;
D) Conforms to the intent and purpose of the Code; and
E) Can be shown to be justified and required for the use and situation intended; (Ord. 4517,
5-8-1995; Ord. 4802, 10-25-1999; Ord. 5100, 11-1-2004; Ord. 5137, 4-25-2005;
Ord. 5369, 4-14-2008; Ord. 5981, 10-12-2020)
This parking modification request prepared for the proposed Benson-Petrovitsky Retail project is justified
through parking demand calculations based on the Institute of Transportation Engineers (ITE) Parking
Generation Manual (5th Edition, 2019) and documentation of compliance with the decision criteria
established by the City of Renton through RMC 4-9-250 (D).
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
TENW September 16, 2022
Page 3
ITE Parking Generation Manual
Table 2 summarizes the parking demand calculations for the Benson-Petrovitsky Retail project based on the
Institute of Transportation Engineers (ITE) Parking Generation Manual (5th Edition, 2019):
Table 2
ITE Parking Generation – Benson-Petrovitsky Retail Parking Demand
ITE Peak Parking Demand1
Use Size
Peak Parking Demand
Ratio
Parking Demand
(stalls)
Super Convenience Market 2 4,100 SF 8.11 per 1,000 SF GFA 33
Drive-In Bank 2,850 SF 3.72 per 1,000 SF GFA 11
TOTAL 44
1) ITE Parking Generation Manual (5th Edition, 2019).
2) The ITE Parking Generation Manual does not include parking demand rates for convenience market/gas station uses.
As a result, Super Convenience Market (LUC 960) was assumed for the proposed 7-11 convenience market/gas station.
As shown in Table 2, using the ITE Parking Generation Manual to estimate the parking demand for the
proposed Benson-Petrovitsky Retail project results in a peak parking demand of 44 parking stalls which is
equal to the total parking supply proposed by the project.
Compliance with Decision Criteria
The following describes how the parking supply proposed with the Benson-Petrovitsky Retail project addresses
the decision criteria outlined in Renton Municipal Code (RMC) 4-9-250 (D):
A) Aligns with the Comprehensive Land Use Element and Community Design Element.
The proposed project is located within a Commercial Arterial Zone and is designated as a
Commercial Mixed Use site in the CityÊs Comprehensive Land Use Element. Unlike the Center Urban
and Center Downtown Zones, surface parking is not discouraged in the Commercial Arterial Zone.
Additionally, the CityÊs Comprehensive Land Use Element describes developments within a
Commercial Arterial Zone as „characterized by large surface parking in front of buildings.‰ As a
result, the Benson-Petrovitsky Retail project is expected to align with the CityÊs Comprehensive Land
Use Element and Community Design Element with the proposed parking supply.
B) Meets the objectives and safety, function, appearance, environmental protection and
maintainability intended by the Code requirements.
None of the objectives intended by the CityÊs parking code requirements are anticipated to be
impacted by increasing the parking supply for the Benson-Petrovitsky Retail project. Landscaping,
pedestrian connections, and screening will be provided throughout the proposed parking areas,
consistent with the City of RentonÊs Comprehensive Land Use Element. Additionally, the property
owner(s) will be responsible for maintaining the parking areas.
C) Not expected to create substantial adverse impacts to other properties in the vicinity.
Based on nationally recognized parking demand data and specific parking information provided by
the tenants, the proposed parking supply of 44 stalls would accommodate the estimated peak
parking demand of 44 stalls, and approval of this modification request is not expected to create
substantial adverse impacts to other properties in the vicinity. In fact, providing parking in the amount
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
TENW September 16, 2022
Page 4
to meet tenant demand would minimize impacts to other adjacent properties by eliminating potential
parking spillover if there is insufficient parking to meet demand.
D) Conforms to the intent and purpose of the Code.
The CityÊs maximum parking code requirements intend to limit the use of vehicular traffic to and from
a project site and promote alternative modes of transportation. However, the future tenants that will
occupy the Benson-Petrovitsky Retail project site are both designed for vehicular users (i.e., drive-in
bank and convenience market with gas station). As a result, the intent to reduce and promote alternate
modes of travel do not apply to this specific site given the land uses proposed with the project align
with the CityÊs Comprehensive Land Use Element.
E) Can be shown to be justified and required for the use and situation intended.
Based on the letters provided by the future tenants of the Benton-Petrovitsky Retail project (see
Attachment C), it is evident that the parking supply proposed with the project is justified and needed
to meet demand and minimize impacts to adjacent properties.
Conclusion
The applicant requests the CityÊs approval of a parking modification to provide a total parking supply of 44
stalls for the proposed Benson-Petrovitsky Retail project as follows:
· The proposed parking supply of 44 stalls would accommodate the estimated peak parking demand
of 44 stalls based on the ITE Parking Generation Manual.
· The proposed parking supply and enclosed parking modification request complies with the decision
criterion established by the City of Renton.
If you have any questions regarding the information presented in this memo, please contact me at (425) 250-
0579 or amy@tenw.com.
Attachments:
A. Project Site Vicinity
B. Preliminary Site Plan
C. Tenant Letters Justifying Parking Supply
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
ATTACHMENT A
Site Vicinity
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Parking Modification Request
Benson-Petrovitsky Retail (Renton)
ATTACHMENT B
Site Plan
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Certificate :6203This certificate provides
information necessary to
evaluate development
proposals.
Applicant's Name:Alicia Baker
Proposed Use:Commercial building permit
Type:Commercial
SOOS CREEK WATER AND SEWER DISTRICT
CERTIFICATE OF SEWER AVAILABILITY
Location:Lot: Block: Development:
Parcel:292305 9017 Address:10828 SE 176TH ST, RENTON
Information:Includes lots 292305 9095 & 292305 9110, convenience store/gas
station/bank
a
b Other (describe):
Connection Charge:yes
Easement (s):
Other: Lot 9110 currently connected under sewer permit # 06963
a
b
c
2.
1.
The sewer system is in conformance with a County approved sewer comprehensive plan.
The sewer system improvement will require a sewer comprehensive plan amendment.
3.The proposed project is within the corporate limits of the district, or has been granted Boundary
Review Board approval for extension of service outside the district or city.
Annexation or Boundary Review Board approval will be necessary to provide service, or sign a
Power of Attorney for annexation.
4.Service is subject to the following:
Sewer service will be provided by service connection only to an existing sewer main 20 feet from
the site and the sewer system has the capacity to serve the proposed area.
SEWER PURVEYOR INFORMATION
a
b
a
b
Signature DateTitle
Agency Name Signatory Name
SOOS CREEK WATER & SEWER DISTRICT
I hereby certify that the above sewer purveyor information is true. This certification shall be valid for one
year from date of signature.
Date
Keely Hogan 8/9/2022
Soos CreekWater & Sewer District "rptAvailSingleParcelAddSewer" 2/6/96
Service is subject to the applicants agreement to comply and perform to make such installation
and/or connections to the standards, regulations, requirements and conditions of this District
and such other agency or agencies having jurisdiction. This District is not representing that it's
facilities will be extended or otherwise modified to make such service available to the
applicant. It is the responsibility of the applicant to make any required extension of facilities to
serve their property.
DE Dept Lead 8/9/22
EXHIBIT 25
RECEIVED
12/21/2022 JDing
PLANNING DIVISION
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: January 23, 2023
TO: Jill Ding, Senior Planner
FROM: Brianne Bannwarth, Development Engineering Director
SUBJECT: Traffic Concurrency Test
TA Benson Petro
17426 108th Ave SE (APN 2923059017)
10828/10810 SE Petrovitsky Rd/ (APN 2923059110, 2923059095)
LUA22-000424
The applicant is requesting Hearing Examiner Site Plan Review, Environmental (SEPA) Review, a
Parking Modification, and a Street Standards Modification for the construction of a new 4,088
sq. ft. convenience store, a 2,900 sq. ft. gas station canopy, and a 2,850 sq. ft. bank. The project
site is comprised of three parcels totaling approximately 72,980 sq. ft. (1.68 acres) in area and is
located within the Commercial Arterial (CA) zone and Urban Design District D. Access to the site
is proposed via one curb cut off of Benson Dr. SE and one curb cut off of SE Petrovitsky Rd. Surface
parking is proposed for 44 parking spaces. A parking modification was requested to exceed the
maximum number of parking spaces permitted. A street standards modification was requested
to vary from the code required frontage improvements and instead comply with alternative plans
that have been adopted by the Transportation Division for the Benson and Petrovitsky frontages.
Slopes with grades less than 25% are mapped on the northeast corner of the project site. No
other critical areas are mapped onsite.
The proposed development would generate approximately 1,085 net new average weekday daily
trips. During the weekday AM peak hour, the project would generate approximately 71 net new
trips (37 inbound and 34 outbound). During the weekday PM peak hour, the project would
generate approximately 104 net new trips (52 inbound and 52 outbound). The proposed project
passes the City of Renton Traffic Concurrency Test per RMC 4-6-070.D as follows:
EXHIBIT 26
Docusign Envelope ID: 618A48A0-4F4E-49D2-9BF7-5D962380E2E5
Transportation Concurrency Test – TA Benson Petro
Page 2 of 3
January 23, 2023
Traffic Concurrency Test Criteria Pass
Implementation of citywide Transportation Plan Yes
Within allowed growth levels Yes
Project subject to transportation mitigation or impact fees Yes
Site specific street improvements to be completed by project Yes
Traffic Concurrency Test Passes
Evaluation of Test Criteria
Implementation of citywide Transportation Plan: The City’s investment in completion of the
forecast traffic improvements is greater than 100% of the scheduled expenditure through 2023.
Within allowed growth levels: The citywide traffic concurrency trip capacity for concurrency with
the city adopted model for 2023 is 2,369 trips. The trip balance provides sufficient capacity to
accommodate approximately 104 trips from this project. A resulting 2,265 trips are remaining.
Project subject to transportation mitigation or impact fees: The project will be subject to
transportation impact fees at time of building permit issuances for the project.
Site specific street improvements to be completed by project: The project will be required to
complete frontage street improvements prior to occupancy as well as provide the required right-
turn lane in the northbound direction of Petrovitsky and an acceleration lane eastbound on
Benson. Any additional off-site improvements identified through SEPA or land use approval will
also be completed prior to occupancy.
Background Information on Traffic Concurrency Test for Renton
The City of Renton Traffic Concurrency requirements for proposed development projects are
covered under Renton Municipal Code (RMC) 4-6-070. The specific concurrency test requirement
is covered in RMC 4-6-070.D, which is listed for reference:
D. CONCURRENCY REVIEW PROCESS:
1. Test Required: A concurrency test shall be conducted by the Department for each
nonexempt development activity. The concurrency test shall determine consistency with
the adopted Citywide Level of Service Index and Concurrency Management System
established in the Transportation Element of the Renton Comprehensive Plan, according
to rules and procedures established by the Department. The Department shall issue an
initial concurrency test result describing the outcome of the concurrency test.
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2. Written Finding Required: Prior to approval of any nonexempt development activity
permit application, a written finding of concurrency shall be made by the City as part of
the development permit approval. The finding of concurrency shall be made by the
decision maker with the authority to approve the accompanying development permits
required for a development activity. A written finding of concurrency shall apply only to
the specific land uses, densities, intensities, and development project described in the
application and development permit.
3. Failure of Test: If no reconsideration is requested, or if upon reconsideration a project
fails the concurrency test, the project application shall be denied by the decision maker
with the authority to approve the accompanying development activity permit application.
The Concurrency Management System established in the Transportation Element on page XI-65
of the Comprehensive Plan states the following:
Based upon the test of the citywide Transportation Plan, consideration of growth levels
included in the LOS-tested Transportation Plan, payment of a Transportation Mitigation
Fee, and an application of site-specific mitigation, development will have met City of
Renton concurrency requirements.
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