HomeMy WebLinkAboutERC_Determination_Fire_Station_15_Applicant_171103
November 3, 2017
Mary Jo Lux
Schreiber Starling Whitehead Architects
901 5th Avenue
Seattle, WA 98164
SUBJECT: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION
Fire Station 15, LUA17-000632, ECF, CU-H, SA-A, MOD
Dear Ms. Lux:
This letter is written on behalf of the Environmental Review Committee (ERC) to advise you that they have
completed their review of the subject project and have issued a threshold Determination of Non-Significance-
Mitigated with Mitigation Measures. Please refer to the enclosed ERC Report, for a list of the Mitigation
Measures.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on November 17,
2017, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA
98057. Appeals to the Examiner are governed by RMC 4-8-110 and information regarding the appeal process may be
obtained from the City Clerk’s Office, (425) 430-6510.
Also, a public hearing has been scheduled by the Hearing Examiner in the Council Chambers on the seventh floor of
City Hall on November 21, 2017 at 11:00 am to consider the Conditional Use Permit. The applicant or
representative(s) of the applicant is required to be present at the public hearing. A copy of the staff
recommendation will be mailed to you prior to the hearing. If the Environmental Determination is appealed, the
appeal will be heard as part of this public hearing.
If you have any further questions, please call me at (425) 430-7289.
For the Environmental Review Committee,
Clark H. Close
Senior Planner
Enclosure
cc: Michael Kirk, City of Renton / Applicant
J.D. Wilson, City of Renton / Party of Record
Abdoul Gafour, City of Renton / Party of Record
Eric Ott, City of Renton / Party of Record
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
ERC REPORT 17-000633
ENVIRONMENTAL REVIEW COMMITTEE REPORT
ERC MEETING DATE: October 30, 2017
Project Name: Fire Station 15
Project File Number: PR17000490
Land Use File Number: LUA17-000632, ECF, CU-H, SA-A, MOD
Project Manager: Clark H. Close, Senior Planner
Owner/Applicant: Michael Kirk, City of Renton Director of Facilities, 1055 S Grady Way, Renton,
WA 98057
Contact: Mary Jo Lux, Schreiber Starling Whitehead Architects, 901 5th Ave Seattle, WA
98164
Project Location: 1404 N 30th St, Renton, WA 98056
Project Summary: The applicant is requesting Administrative Site Plan Review, Hearing Examiner
Conditional Use Permit, State Environmental Policy Act (SEPA) Review, and a
street modification request for the construction of a new fire station (Fire
Station 15) in the Kennydale Neighborhood. The 1.09-acre site is located at 1404
N 30th St. The vacant parcel is currently a split zoned parcel. Approximately the
first 120 feet of the property from N 30th St is located within the Commercial
Neighborhood (CN) zoning classification and Residential High Density (RHD) land
use designation. The north portion of the property is located within the
Residential-6 (R-6) zoning classification and Residential Medium Density (RMD)
land use designation. Improvements to property include a new 7,497 square foot
fire station at the south part of the lot and a new water reservoir at the northern
portion of the lot. The two projects are proposing to share an access drive along
the west side of the property and a second driveway would be located closer to
the east property line for fire truck exiting. The site slopes from north to south
from approximately 226 feet to 208 feet (18 feet). The site is located within the
Wellhead Protection Area Zone 2. The two projects would be constructed in two
phases. Construction of the fire station would begin in February 2018 and end
on December 2018. Exterior improvements include parking, driveways,
landscaping, pedestrian sidewalks, and stormwater improvements. The
applicant has identified 21 significant trees onsite and proposes to retain one (1)
tree along the west side of the property.
The following reports have been submitted with the land use application:
Preliminary Technical Information Report, Arborist Tree Assessment, Trip
Generation Assessment, and Geotechnical Report.
Site Area: 47,538 SF (1.09 acres)
STAFF
RECOMMENDATION:
Staff Recommends that the Environmental Review Committee issue a
Determination of Non-Significance – Mitigated (DNS-M).
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 2 of 8
ERC REPORT 17-000632
Project Location Map:
PART ONE: PROJECT DESCRIPTION / BACKGROUND
The subject proposal is part of a multi-phased development proposal of the City of Renton parcel. The initial
phase would be the construction of Fire Station 15 (February 2018 – December 2018) followed by the
Kennydale reservoir (June 2018 – December 2019). The property was purchased by the City for a future fire
station and there is adequate space to locate both the fire station and reservoir on the same property
(Exhibits 3 and 4).
The applicant is requesting Environmental (SEPA) Review to construct a new 7,497 square foot
neighborhood single-story fire station at the southern portion of the property. At its furthest most limits,
the building measures 104 feet wide by approximately 87 feet deep and the tallest point of the building
would be less than 24 feet in height (Exhibits 7 and 9). The initial phase of site development would include
the construction of Fire Station 15, excluding the finish grading and paving of the west access drive and the
rear apron and parking. The final grading and paving of these areas are included in the Kennydale Reservoir
project to allow this portion of the site to serve as lay-down and assembly areas for the reservoir. The
stormwater systems for these areas would be constructed as part of phase one.
The fire station is proposed to be constructed in the Kennydale neighborhood on a city-owned parcel located
at 1404 N 30th St (Exhibit 2). The subject property is currently undeveloped and slopes gently upwards from
the southwest to the northeast, varying in elevation from approximately 208 feet to 226 feet with slopes
variation of one to eight percent (1-8%) with the steepest existing onsite slope of sixteen percent (16%) in a
small area of the parcel (Exhibit 6). Once completed, the fire station would provide improved response times
for fire and emergency services in the Kennydale neighborhood and the Renton Regional Fire Authority
service area, relieving some of the current load placed on Fire Stations 11, 12 and 16. The new building
would house a single engine company con sisting of three (3) firefighters. The fire station would be in use at
all times.
An estimated 2,050 cubic yards of material would be excavated during construction from this portion of the
site and approximately 350 cubic yards of fill material would be imported fill based on the geotechnical
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 3 of 8
ERC REPORT 17-000632
recommendations. The project site would be regraded to provide a level area for the new fire station and
associated parking. The fire station would be located on roughly 31,053 square feet of the southern portion
of the site and the reservoir would be constructed on the north 16,485 square feet of the northern portion
of the site. The southern portion of the site contains approximately six (6) significant trees.
PART TWO: 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 comply with the recommendations included in the Kennydale Fire Station 15
Geotechnical Engineering Report, prepared by HWA GeoSciences, Inc. (dated August 31, 2017),
or an updated report submitted at a later date.
C. Exhibits
Exhibit 1 Environmental Review Committee Report
Exhibit 2 Neighborhood Detail Map
Exhibit 3 Detailed Site Plan
Exhibit 4 Conceptual Project Rendering
Exhibit 5 Environmental Checklist
Exhibit 6 Topography Map
Exhibit 7 Architectural Elevations (A4.01, A4.02 and A4.03)
Exhibit 8 Color Building Elevations (P1.03, P1.04, P1.05, and P1.06)
Exhibit 9 Floor Plans (A3.01 and A3.02)
Exhibit 10 Tree Retention, Landscape, Irrigation Plans (L0.01, L1.01, L1.02, and L2.01)
Exhibit 11 Civil Construction Plan Set, Fire Station (12 Sheets – C1.01 – C4.2)
Exhibit 12 Construction Mitigation Description
Exhibit 13 Geotechnical Engineering Report, prepared by HWA GeoSciences, Inc., dated August
31, 2017
Exhibit 14 Preliminary Technical Information Report, prepared by LPD Engineering, PLLC, dated
September 22, 2017
Exhibit 15 Trip Generation Memorandum, prepared by Transpo Group, dated July 11, 2017
Exhibit 16 Tree Assessment Report (Level 2), prepared by Urban Forestry Services, Inc., dated
September 13, 2017
Exhibit 17 Advisory Notes to Applicant
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 4 of 8
ERC REPORT 17-000632
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: The applicant submitted a Geotechnical Engineering Report for the new single-story fire
station, prepared by HWA GeoScience, Inc. (HWA), dated August 31, 2017 (Exhibit 13). The
subsurface soils on the site consist of recessional outwash consisting of loose to medium dense,
clean to silty sand over dense, gray, silty sand over weathered till. In support of the fire station
design, HWA drilled three (3) exploratory borings (BH-4 through BH-6) to depths of 31.5 feet, 44
feet, and 31.5 feet below ground surface, respectively. Weathered till was encountered in boring
BH-5 below the recessional outwash sands. This unit consisted of very stiff sandy silt and medium
dense to dense, silty, gravelly sand. Previous explorations at the site to the north encountered
glacial till below the recessional outwash deposits (BH-1 and BH-2). Perched ground water seepage
was observed by the geotechnical engineer at the time of their field investigation in boring BH-5 at
a depth of 32.5 feet below ground surface. According to the report, the recessional outwash would
provide suitable bearing for the new fire station as most of the elastic settlement would occur
during construction. The report also found that liquefaction would not be a design consideration
based on the ground water elevations observed, given the materials that were saturated are dense
to very dense.
Because the upper 5 to 7 feet of outwash soils are relatively loose are not conducive to infiltration,
the geotechnical engineer is recommending that the applicant over-excavate the upper fine-
grained material (sandy silt soils) to the proposed floor subgrade level and then backfill the area
with free-draining granular material before compacting with at least four (4) coverages using a 10-
ton (minimum static weight) vibratory roller. Thus, the applicant proposes to backfill the site with
approximately 350 cubic yards of material such as pea gravel, excavate an estimated 2,050 cubic
yards of recessional outwash soils and grade portions of the site (Exhibit 5). The results of the
grading and grade changes, a 3-foot tall retaining wall would be constructed east of the fire station
building. The engineer is also recommending that the granular material placed underneath the
pervious pavement and/or bioretention pond not be compacted.
According to the report, the fire station should be designed and constructed with spread footing
foundations bearing on a layer of compacted structural fill placed over that native soils. In addition,
the geotechnical engineer is recommending that the individual footing subgrades should be
compacted with a backhoe-mounted vibratory plate compactor (hoepac).
The 2017 geotechnical report included specific recommendations for: site pre paration, seismicity,
foundations, retaining walls, utilities, below-grade structures, stormwater management,
earthwork, and pavement. As such, staff recommends a mitigation measure that the applicant shall
comply with the recommendations found in the Geotechnical Engineering Report completed by
HWA GeoSciences, Inc. for Kennydale Fire Station 15 (dated August 31, 2017) or an updated report
submitted at a later date.
Mitigation Measures: The applicant shall comply with the recommendations included in the
Kennydale Fire Station 15 Geotechnical Engineering Report, prepared by HWA GeoSciences, Inc.
(dated August 31, 2017), or an updated report submitted at a later date.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 5 of 8
ERC REPORT 17-000632
Nexus: SEPA Environmental Regulations, RMC 4-4-060 Grading, Excavation and Mining Regulations.
2. Air
Impacts: It is anticipated that some temporary air quality impacts could be associated with site
work and building construction required to develop this site. Project development impacts during
construction may include dust, resulting from grading and exhaust from construction vehicles. Dust
control would be mitigated through the use of temporary erosion control measures. A Temporary
Erosion and Sedimentation Control (TESC) plan and system would be developed and submitted to
the City in accordance with the City’s development regulations and with the Department of Ecology
(DOE) Construction Stormwater Pollution Prevention Plan (SWPPP) (Exhibits 11 and 12).
Following construction, vehicle emissions associated with the day to day operation of the fire
station are anticipated to be very low. No further site specific mitigation for the identified impacts
from typical vehicle and construction exhaust is required.
Mitigation Measures: No further mitigation recommended.
Nexus: Not applicable.
3. Water
a. Ground Water
Impacts: The project is located within the City of Renton Wellhead Protection Zone 2 area. The
overall purpose of the aquifer protection regulations is to protect aquifers used as potable water
supply sources by the City from contamination by hazardous materials. Some uses are restricted
that store, handle, treat, use, or produce substances that pose a hazard to groundwater quality.
The fire station parking lot is proposed to be permeable pavement that would have an underlying
layer of water quality treatment media such as treatment soil or sand filtering media. The asphalt
driveway accessing the parking lot and reservoir would be directed to a storm filter catch basin
system, with two (2) 18-inch filter cartridges.
Approximately 350 cubic yards of fill would be brought to the fire station site. Such fill would be
used for the structural needs of the building and would be obtained from approved local fill
sources. Since fill is proposed for project development, a fill source statement would be required to
be submitted to the City to ensure clean fill is used. The fill source statement shall be submitted
with the construction permit application. Impacts to the Wellhead Protection Area are not
anticipated as a result of the subject project, provided the City of Renton codes are complied with.
Mitigation Measures: No further mitigation recommended.
Nexus: Not applicable.
b. Storm Water
Impacts: A Technical Information Report (TIR), prepared by LPD Engineering, PLLC (dated
September 22, 2017), was submitted with the project application (Exhibit 14). The site is located in
the City’s Peak Rate Flow Control Standard (Existing Site Conditions) and the East Lake Washington
drainage basin. The proposed conditions would maintain the natural drainage patterns within its
basin. The TIR was completed in accordance with the standards found in the 2017 Renton Surface
Water Design Manual (RSWDM) and all nine core and six special requirements were addressed. The
TIR determined that full dispersion and full infiltration are infeasible.
According to the TIR, the project proposes approximately 8,965 square feet of pollution generat ing
impervious surface (PGIS). The project proposes to treat the PGIS from the shared driveway and
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 6 of 8
ERC REPORT 17-000632
the driveway from Fire Station 15 to N 30th St using a Stormfilter system. The Stormtank system,
Stormfilter or other water quality treatment facility, bioretention facility, pervious pavement, catch
basin, and stormwater conveyance on the site would be privately maintained. A Stormfilter system
is an acceptable treatment option for Basic Water Quality treatment however it is not acceptable
as a standalone option for Enhanced Basic Water Quality treatment. The plans and TIR should be
updated to show compliance the Enhanced Basic Water Quality treatment standard by providing an
Enhanced Basic Water Treatment facility per Section 6.1.2 unless exempted per Section 1.2.8.1 for
all PGIS on the site. Permeable pavement is proposed to be used in the fire station’s parking lot
area. Permeable pavement alone is not a water quality treatment facility.
Onsite stormwater management would be implemented via a bioretention pond and the
permeable pavement facility. The majority of the project site runoff would be routed to a shallow
detention facility, designed to store approximately 1,900 cubic feet, before being routed to an
existing catch basin inlet within N 30th St discharging to the 12-inch public storm main. The project
would be required to provide onsite flow control best management practices (BMP’s) to mitigate
the impacts of stormwater runoff generated by the new plus replaced impervious surface to the
maximum extent feasible. Since the project is larger than 22,000 square feet it would req uire the
large lot BMP requirements.
Mitigation Measures: No further mitigation recommended.
Nexus: Not applicable.
4. Vegetation
Impacts: A Level 2 Tree Assessment Report was prepared by Urban Forestry Services, Inc. (dated
September 13, 2017; Exhibit 16) and submitted with the land use application. The 1.09 acre site is
largely open lawn with a total of 32 fruit and ornamental trees . The predominant species, included
black locust (Robinia pseudoacacia), flowering plum (Prunus cerisifera form), and various fruit trees.
The tree structures range from fair to poor with many of the trees ranked with a present value of
low. None of the surveyed trees were considered hazardous.
According to the report, most of the trees are recommended for removal due to the construction
impacts. The significant trees range in size from 7.2 to 24 DBH. Many of the trees surveyed by the
arborist fall below Renton’s significant tree size thresholds to be considered for tree retention, as a
result there are only a total of 21 significant trees onsite. The applicant is required to retain 10
percent (10%) of the trees located within the commercial neighborhood portion and 30 percent
(30%) of the trees located within the residential portion of the site that are not located within the
proposed rights-of-way or access easements. Of the 21 significant trees within the project area, the
applicant is proposing to retain one (1) tree out of the required six (6) retention trees onsite. As a
result, the applicant is proposing to replant the site with 30 trees at 2-inch caliper in order to
comply with the Tree Retention requirements of the code.
During construction, trees required to be retained (i.e., protected trees, including off-site trees),
would be required to comply with the tree protection measures during construction per RMC 4-4-
130H.9. The eight central components of tree protection include defining and protecting the drip
line, erecting and maintaining a temporary six-foot-high chain link construction fence with placards
around the tree to be retained, protecting the tree from grade changes, keeping the area clear of
impervious surface material, restricting grading within the drip line, providing three inches (3”) of
bark mulch within the required fencing, retaining a certified arborist to ensure trees are protected
from development activities, and alternate protection/safeguards as necessary.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 7 of 8
ERC REPORT 17-000632
Additional landscaping would be incorporated into the project’s Landscape Plan to work in
conjunction with the retained tree (Exhibit 10). For example, a variety of trees plans and shrubs
would be planted along the buffer areas located along t he eastern portion of the site and portions
of the north and west borders of the fire station development. Preliminary buffer tree species
include western red cedar, red flowering currant and vine maple in order to minimize visual
impacts of the fire station on surrounding properties.
Mitigation Measures: No further mitigation recommended.
Nexus: Not applicable.
5. Environmental Health
a. Noise
Impacts: Noise impacts would primarily result from the construction of the proposed road
improvements and new structure improvements. The construction noise generated by the project
would be regulated through the City’s adopted noise level regulations per Chapter 8 -7, RMC. The
City’s noise regulations limit haul hours between 8:30 am to 3:30 pm, Monday through Friday
unless otherwise approved by the Development Services Division. Permitted work hours in or near
residential areas are restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock
(8:00) p.m. for commercial and other nonresidential construction activities from 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.
Noise impacts anticipated from the maintenance and operation of the fire station are anticipated
to be impacts that would be commonly associated with a fire station, such as siren noise (115 dBA).
These peak noise events would be short and infrequent, and they would not be expected to result
in exceedance of EPA or HUD 24-hour exposure levels. Based on the limited duration of fire station
siren noise and compliance with EPA and HUD 24 hour exposure levels additional noise mitigation
is not necessary.
Mitigation Measures: No further mitigation recommended.
Nexus: Not applicable.
6. Aesthetics
Impacts: The primary aesthetic goal of project architect was to create a successful civic building on
a prominent arterial that is clearly identifiable as a fire station. The proposed design seeks to unite
the “house apparatus” and “public” functions under a unifying gray metal sloping roof to define the
shape of the building while expressing the differing functions through modulat ions of form,
volume, material and transparency. Exterior materials, form and color were selected to emphasize
the functional elements of the program and their related volumes. The functions that have a
primary public connection and represent the operation al elements are the apparatus bays and the
lobby. These elements are also the most visually transparent. According to the architect, the design
includes the largest possible transparent sectional openings at the vehicle bifold doors and larger
window openings at the fire station office and full-transparent glazing at the public lobby along the
public facing façade. The building exterior also includes storefront windows, bay overhead doors,
red panel vertical siding, tan and taupe horizontal siding panels, gray metal columns, and a
mezzanine parapet (Exhibits 7 and 8).
Mitigation Measures: No further mitigation recommended.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
FIRE STATION 15 LUA17-000632, ECF, CU-H, SA-A, MOD
Report of October 30, 2017 Page 8 of 8
ERC REPORT 17-000632
Nexus: Not applicable.
7. Transportation
Impacts: A trip generation memorandum, prepared by Transpo Group (dated July 11, 2017) was
submitted for the proposed Renton Fire Station 15. The proposed use is considered a low generator
of vehicular traffic with approximately 46 daily vehicle trips. This would include 14 trips occurring
during the AM peak hour and 8 trips occurring during the PM peak hour. It is anticipated that
temporary impacts to traffic would result from the proposed project during construction.
The addition of a new fire station would provide improved fire and emergency service response
times in the Kennydale neighborhood and Renton Regional Fire Authority service area. This is
expected to relieve some of the current load placed on Fire Stations 11, 12 and 16. The station
would be in operation at all hours of the day every day of the week. Three employees are on-shift
at all times, with shifts extending for a full 24 hours. Shift changes occur daily at 8:00 a.m.
Fire station construction work is scheduled to begin February 2018 and end December 2018. The
proposed work hours of for the construction of the fire station are between seven o’clock (7:00)
a.m. and eight o’clock (8:00) p.m., Monday through Friday. Hauling hours are restricted to the
hours between eight-thirty (8:30) a.m. and three-thirty (3:30) p.m., Monday through Friday unless
otherwise approved in advance by a traffic control plan submitted by the contractor and approved
by the City (Exhibit 12). A traffic control plan would be needed during the construction of utility
improvements in N 30th St and Park Ave N.
Mitigation Measures: No further mitigation required.
Nexus: Not applicable.
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 listed under Exhibit 17 “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 together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way,
Renton, WA 98057, on or before 5:00 p.m. on November 17, 2017. RMC 4-8-110 governs appeals to the
Hearing Examiner and additional information regarding the appeal process may be obtained f rom the City
Clerk’s Office, Renton City Hall – 7th Floor, (425) 430-6510.
CITY OF RENTON
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
REPORT TO THE ENVIRONMENTAL REVIEW COMMITTEE
EXHIBITS
Project Name:
Fire Station 15
Project Number:
LUA17-000632, ECF, CU-H, SA-A, MOD
Date of Meeting
October 30, 2017
Staff Contact
Clark H. Close
Senior Planner
Project Contact
Mary Jo Lux, Schreiber
Starling Whitehead
Architects, 901 5th Ave
Seattle, WA 98164
Project Location
1404 N 30th St,
Renton, WA 98056
Exhibits:
Exhibit 1 Environmental Review Committee Report
Exhibit 2 Neighborhood Detail Map
Exhibit 3 Detailed Site Plan
Exhibit 4 Conceptual Project Rendering
Exhibit 5 Environmental Checklist
Exhibit 6 Topography Map
Exhibit 7 Architectural Elevations (A4.01, A4.02 and A4.03)
Exhibit 8 Color Building Elevations (P1.03, P1.04, P1.05, and P1.06)
Exhibit 9 Floor Plans (A3.01 and A3.02)
Exhibit 10 Tree Retention, Landscape, Irrigation Plans (L0.01, L1.01, L1.02, and L2.01)
Exhibit 11 Civil Construction Plan Set, Fire Station (12 Sheets – C1.01 – C4.2)
Exhibit 12 Construction Mitigation Description
Exhibit 13 Geotechnical Engineering Report, prepared by HWA GeoSciences, Inc., dated
August 31, 2017
Exhibit 14 Preliminary Technical Information Report, prepared by LPD Engineering, PLLC,
dated September 22, 2017
Exhibit 15 Trip Generation Memorandum, prepared by Transpo Group, dated July 11,
2017
Exhibit 16 Tree Assessment Report (Level 2), prepared by Urban Forestry Services, Inc.,
dated September 13, 2017
Exhibit 17 Advisory Notes to Applicant
N 30TH ST
N 31ST ST
N 32ND ST
N 29TH STBURNETT AVE NPARK AVE NKENNEWI
CK PL NEHIGHWAY 405HIGHWAY 405Fire Station 15
June, 2017 Neighborhood Detail Map P1.01
N Scale: 1" = 100'-0"P1.01
Neighborhood Detail Map1
2 2 1
222
226
224
223
218
2 1 7
216
214
213
209208
2132 12211209208
207
220
2 2 5
215
21013+00 14+00
Site Plan Legend
PROPERTY LINE
EXISTING TOPO LINES - SEE SURVEY
UTILITIES - SEE CIVIL
215
NON-PERMEABLE CONCRETE PAVING - SEE CIVIL
PERMEABLE CONCRETE PAVING - SEE CIVIL
ASPHALT PAVING - SEE CIVIL
Site Notes
1. Construction limits, spot elevations, grades and site utilities indicated for
reference only, see Civil drawings for requirements.
2. Paving indicated for reference only, see Civil and Landscape drawings
for requirements.
3. Landscaping indicated for reference only, see Landscape drawings for
requirements.
4. Electrical site utilities described for reference only, see Electrical
drawings for requirements.
5. Comply with City of Renton requirements for all W ork in ROW.
6. Provide construction fence at limits of construction. Minimum fence
height shall be six feet. Provide gates as necessary.
7. Field verify all relevant existing conditions and dimensions prior to the
start of Work. Notify Architect immediately of any discrepancies.
8. Protect all existing conditions to remain on site and adjacent to Work
area. Notify Architect of any damage to existing condtions to remain and
restore or replace to original condition.
9. Confirm all underground utility locations prior to the start of Work and
protect all existing conditions to remain.
10.Confirm locations of adjacent overhead utilites and protect all existing
conditions to remain.
A4.01 5
NORTH 30TH STREET
PROJECT
SEPARATION LINE
RETAINING
WALL
15' REAR SETBACK
10-FT LANDSCAPE BUFFERPATIO
SLIDING
SECURITY GATE
FLAGPOLE
RETAINING
WALL
PROPOSED FIRE
STATION #15
CONCRETE
RETAINING
WALL
FIRE HYDRANT
PATIO
FIREFIGHTER
ENTRANCE
GENERATOR
TRASH
ENCLOSURE
PROPERTY
LINE TYP
FUTURE ROW
ROAD EXTENSION
SETBACK
POST MOUNTED
KEY PAD
FENCE &
MAN GATE
40' - 0 5/8"11' - 0"11' - 0"156' - 11 3/4"
ROW CL
SIDEWALK
21' - 10 3/16"21' - 11 9/16"43' - 9 3/4"8' - 0 7/16"(E) UTILITY
POLE16' - 2"8' - 0"8' - 0"8' - 0"7' - 4"NEW FENCE
AT EAST
PROPERTY
LINE
NEW FENCE AT
WEST
PROPERTY LINE
NEW FENCE AT
NORTH
PROPERTY LINE
ADA
PARKING
SIGN
CONCRETE
APRON302' - 9 1/4"302' - 9 1/4"PARCEL: 334210-3245
ZONE: CN
PROPERTY
LINE / ZONE
CHANGE CN ZONER-6 ZONECN ZONEPROPOSED CN ZONE(CURRENT R-6 ZONE)LIGHT POLE-
SEE ELECT
CONCRETE
APRON
BIKE
RACK
PROPOSED
CONSTRUCTION
TRAILER
LOCATION
ENCLOSURE
SCREENINGFS #15RESERVOIRCONCRETE
CURB
RETAINING WALL
@ PROP LINE-
SEE CIVIL
TYPICAL CURB-
SEE CIVIL
SLIDING GATE
MOTOR
PUBLIC
PARKING
(E) STORM DRAIN
TO BE RELOCATED-
SEE CIVIL 30' - 0 5/8"7
G
15' - 0"52' - 0"LOCATE BUILDING AT
GRID INTERSECTION
G-7. SEE CIVIL
FDC
PROPOSED
RESERVOIR
10' - 0"
6"
16' - 0"
6"
6"6"24' - 0"20' - 0"4' - 6"
4' - 6"6"20' - 0"6"18' - 0"24' - 0"TYP
9' - 0"
AREA
SEPARATION
LINE
STEPPING STONES-
SEE LANDSCAPE
14' - 2 5/8"
38' - 6 13/16"
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No:
A1.01
Site Plan
Conditional Use
Permit
Fire Station 15
August 18, 2017
N Scale: 1" = 20'-0"A1.01
Site Plan2
.HQQ\GDOH)LUH6WDWLRQDQG5HVHUYRLU3URMHFW)LUH6WDWLRQ&RQFHSWXDO'HVLJQAerial View
First Floor
ELEV. = 0' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
Average Grade
ELEV. = 0' - 2 1/2"BUILDING HEIGHT = 23' - 6 1/2"= 212.0'
= 212.2'
= 235.75'
HORIZONTAL SIDING
PANEL- TAUPE
HORIZONTAL
SIDING PANEL- TAN
VERTICAL SIDING
PANEL- RED
HORIZONTAL
SIDING PANEL-
TAUPE
OVERHEAD
DOOR TYP
STOREFRONT
ROOF &
FASICA- GRAY
BOLLARD TYP
METAL
DOOR TYP
ANTENNAS- MOUNTED
TO SIDE OF WALL
6 5 4 3 27
13' - 0"5' - 0"23' - 0"40' - 0"10' - 0"7' - 3"5
A4.03
EXISTING
GRADE
AVERAGE GRADE
FALL PROTECTION
ANCHOR TYP
NEW GRADE
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.02
NEW GRADE
Average Grade
ELEV. = 0' - 2 1/2"CONCRETE
RETAINING WALL
HORIZONTAL SIDING
PANEL- TAUPE
VERTICAL SIDING
PANEL- RED
WINDOW TYP
ROOF &
FASCIA- GRAY
WINDOW
COLUMN- GRAY
BUILDING HEIGHT = 23' - 6 1/2"STOREFRONT
= 212.0'
= 212.2'
= 235.75'
ABCDEGHJF
2
A4.02
4
A4.02
3
A4.02
6"9' - 0"9' - 0"5' - 6"3' - 6"
1' - 6"
7' - 6"9' - 0"10' - 10"
5' - 8" 4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4"9' - 0"4' - 0"14' - 0"2' - 0"CONDUCTOR HEAD
& DOWNSPOUT TYP
EXISTING GRADEAVERAGE GRADE
HORIZONTAL
SIDING PANEL- TAN
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
Average Grade
ELEV. = 0' - 2 1/2"
= 212.0'
= 212.2'
= 235.75'BUILDING HEIGHT = 23' - 6 1/2"METAL
COLUMN- GRAY
ROOF &
FASCIA- GRAY
HORIZONTAL SIDING
PANEL- TAUPE
DOOR TYP
BIFOLD DOOR TYP
BOLLARD
TYP
WINDOW
TYP
STOREFRONT
HORIZONTAL
SIDING PANEL-
TAUPE
VERTICAL
SIDING PANEL -
RED
STRUCTURAL
FRAMING
ROOF &
FASCIA- GRAY
HORIZONTAL
SIDING PANEL-
TAN
VERTICAL SIDING
PANEL- RED
65432 7
13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
CLERESTORY
STOREFRONT
3' - 0"
5
A4.03
GUTTER TYP
FALL PROTECTION
ANCHOR TYP
EXISTING GRADE
NEW GRADE
First Floor
ELEV. = 0' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.02
Average Grade
ELEV. = 0' - 2 1/2"
HORIZONTAL
SIDING PANEL- TAN
ROOF- GRAY
BUILDING HEIGHT = 23' - 6 1/2"HORIZONTAL
SIDING PANEL-
TAUPE
WINDOW TYP
FASCIA &
GUTTER- GRAY
VERTICAL SIDING
PANEL- RED
HORIZONTAL SIDING
PANEL- TAUPE
STOREFRONT
VERTICAL SIDING
PANEL- RED
= 212.0'
= 212.2'
= 235.75'
A B C D E G H JF
2
A4.02
4
A4.02
9' - 0" 27' - 4" 5' - 0" 24' - 0" 5' - 0" 5' - 4" 4' - 6"5' - 8"
3
A4.02
FALL PROTECTION
ANCHOR TYP
NEW GRADE
EXISTING
GRADE
SMALLEST RECTANGLE
TO ENCLOSE ENTIRE
STRUCTURE
BUILDING FOOTPRINT
6' OFFSET
AVERAGE GRADE CALCUALTIONS
ORDINANCE NUMBER 5576
NORTH: (212.5+214.9) / 2 = 213.7
EAST: (214.9 + 213.5) / 2 = 214.2
SOUTH: (213.5 + 207.9) / 2 = 210.7
WEST: (207.9 + 212.5) / 2 = 210.2
848.8 / 4 = 212.2 = EXISTING AVG GRADE
ELEVATION
212.5'
ELEVATION
213.1'
ELEVATION
214.9'
ELEVATION
216.0'
ELEVATION
213.8'
ELEVATION
213.6'ELEVATION
207.9'
ELEVATION
208.0'
FS-15 BUILDING
6' - 0"6' - 0"6' - 0"6' - 0"First Floor
ELEV. = 0' - 0"
Average Grade
ELEV. = 0' - 2 1/2"
BUILDING
6' - 0"CONCRETE
RETAINING WALL
METAL SLAT
SWINGING GATES
TRASH / RECYCLE
BINS BEHIND GATES
6" 14' - 0" 6" 29' - 4"
METAL SLAT
ENCLOSURE 3' - 0"B
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No: 17-000172
A4.01
Exterior Elevations
Conditional Use
Permit
Fire Station 15
August 18, 2017
Scale: 1/8" = 1'-0"A4.01
Exterior Elevation - North1
Scale: 1/8" = 1'-0"A4.01
Exterior Elevation - East2
Scale: 1/8" = 1'-0"A4.01
Exterior Elevation - South (N 30th Street)3
Scale: 1/8" = 1'-0"A4.01
Exterior Elevation - West4
Scale: 1/8" = 1'-0"A4.01
Exterior Elevation - Trash Enclosure5
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Low Roof
ELEV. = 10' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
LOBBY STATION
OFFICE
OFFICER'S
OFFICE
65432 7
A5.01
1
A5.01
2
A5.01
3
A5.01
4
A5.01
5
APPARATUS
BAY
SHOPADA
RESTROOM
13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
5
A4.033' - 0"
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Mezzanine
ELEV. = 11' - 0"Low Roof
ELEV. = 10' - 0"
Mezzanine Roof
ELEV. = 19' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
65432 7
A5.01
6
13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
APPARATUS
BAY
BUNKER
GEARLAUNDRYSHOWER
MEZZANINE
DAY
ROOM
KITCHEN
A5.01
2
A5.01
1
5
A4.03
ROOFTOP
MECHANICAL
UNIT
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Low Roof
ELEV. = 10' - 0"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
65432 7
A5.01
1
A5.01
2
A5.01
10
13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
3' - 0"
DECON
APPARATUS
BAYFITNESSCORRIDORBUNK 2
5
A4.03
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Mezzanine
ELEV. = 11' - 0"Low Roof
ELEV. = 10' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.03
2
A4.03
3
A4.03
4
A4.03
65432 7
DINING HALL HALL ALCOVE
APPARATUS
BAY
HOSE
STORAGE
5
A4.03
MECHANICAL CHASE 4' - 0"4' - 0"13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
ROOFTOP
MECHANICAL UNIT
ON CONCRETE CURB
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No: 17-000172
A4.02
Building Sections
Conditional Use
Permit
Fire Station 15
August 18, 2017
Scale: 1/8" = 1'-0"A4.02
EW Section - Lobby1
Scale: 1/8" = 1'-0"A4.02
EW Section - Mezzanine2
Scale: 1/8" = 1'-0"A4.02
EW Section - Bunk Rooms4
Scale: 1/8" = 1'-0"A4.02
EW Section - Chase3
First Floor
ELEV. = 0' - 0"
Mezzanine
ELEV. = 11' - 0"Low Roof
ELEV. = 10' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.02
MEZZANINE
LAUNDRY
FITNESS
HALL HALL
ROOFTOP
MECHANICAL
UNIT ON CURB
ABCDEGHJF
A5.01
10
SIM
MEDICAL
OFFICER'S
OFFICE
5' - 0"
5' - 8" 4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4"9' - 0"
2
A4.02
4
A4.02 5' - 8 1/4"
3
A4.02
MECHANICAL
CHASE
First Floor
ELEV. = 0' - 0"
Low Roof
ELEV. = 10' - 0"
1
A4.02
BUNK 1 BUNK 2 BUNK 3
BUNK 4KITCHENDINING
ABCDEGHF
4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4" 9' - 0"
A5.01
5
SIM
A5.01
10
SIM
3' - 8"1' - 2"
ADA
RESTROOM
A5.02
3
A6.02
7
2
A4.02
4
A4.02
3
A4.02
First Floor
ELEV. = 0' - 0"
Low Roof
ELEV. = 10' - 0"
1
A4.02
CORRIDORLOBBY
ABCDEGHF
4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4" 9' - 0"
A5.01
10
SIMP2P2
A5.02
1
2
A4.02
4
A4.02
3
A4.02
3' - 0"1' - 2"
First Floor
ELEV. = 0' - 0"
Mezzanine
ELEV. = 11' - 0"
Mezzanine Parapet
ELEV. = 23' - 9"
1
A4.02
APPARATUS
BAY
ABCDEGHJF
5' - 0" 4' - 0" 1' - 11" 12' - 5"12"
A6.02
7
OPP
5' - 8" 4' - 6" 5' - 4" 5' - 0" 12' - 0" 12' - 0" 5' - 0"27' - 4" 9' - 0"
2
A4.02
4
A4.02
3
A4.02
A5.02
2
SIM
1' - 2"3' - 0"
First Floor
ELEV. = 0' - 0"
App Bay Roof
ELEV. = 21' - 0"
Low Roof
ELEV. = 10' - 0"
1
A4.02
BCDEGHF
2
A4.02
4
A4.02
3
A4.02
4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4"
1' - 2"3' - 2"5' - 6" 3' - 6" 1' - 6" 7' - 6" 9' - 0"6" 9' - 0"
BUNKER
GEARSHOP HOSE
STORAGE
DECON CUSTODIAL
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No: 17-000172
A4.03
Building Sections
Conditional Use
Permit
Fire Station 15
August 18, 2017
Scale: 1/8" = 1'-0"A4.03
NS Section- Mezzanine3
Scale: 1/8" = 1'-0"A4.03
NS Section- Station House1
Scale: 1/8" = 1'-0"A4.03
NS Section- Corridor2
Scale: 1/8" = 1'-0"A4.03
NS Section- App Bay4
Scale: 1/8" = 1'-0"A4.03
NS Section- Support5
Fire Station 15
June, 2017 North Elevation P1.03
Fire Station 15
June, 2017 East Elevation P1.04
Fire Station 15
June, 2017 South Elevation P1.05
Fire Station 15
June, 2017 West Elevation P1.06
UP
1
A4.02
1
A4.03
2
A4.03
3
A4.03
4
A4.03
A4.01
1
A4.012
A4.01
3
A4.01 4
STATION
OFFICE
103
APPARATUS
BAY
119
LOBBY
100
LAUNDRY
114
FITNESS
113
BUNK 4
112
BUNK 3
111
BUNK 2
110
BUNK 1
109
DECON
121
CUSTODIAL
120
HOSE
STORAGE
122
BUNKER
GEAR
123
DAY
ROOM
108
DINING
107
KITCHEN
106
PATIO
PATIO
SHOP
124
PANTRY
105
DOUBLE
CHECK VALVE
ASSEMBLY
SPRINKLER
RISER
COMM
117
ADA
RESTROOM
101
HALL
102A
OFFICER'S
OFFICE
104 8' - 1"14' - 7"4' - 8"3' - 2"1' - 10"24' - 0"2' - 4"2' - 8"5' - 4"CORRIDOR
102
HALL
102DHALL
102C
HALL
102B
LOCKERS
102E
ALCOVE
119A
100101 102-1102-2102B108-1107
109
110
111
112
102A
102D
123
103104117 114113-1124120108-2
102C
119-4119-3
ADA
SHOWER
115
SHOWER
116
1162' - 1"2' - 1 1/2"EQ3' - 0"EQ1' - 9"
3' - 0"
2' - 0"
3' - 0" 7' - 3" 3' - 0" 3' - 0"
2' - 0"
3' - 4" 4' - 8"
MIN
18"24"40"16"44"140"40"108"28"32"40"64"72"96"56"654
13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
32 7
A
B
5' - 8" 4' - 6" 5' - 4" 5' - 0" 24' - 0" 5' - 0" 27' - 4"9' - 0"C
D
E
G
H
J 3' - 0" 3' - 3" 11" 5' - 10" 7' - 8" 3' - 4" 2' - 11"2' - 1"1' - 7 1/2"F 2' - 8 1/2" 4' - 7"7' - 6" 7' - 0" 9' - 6"10' - 6"1' - 3"2' - 0"4' - 6"12"3' - 6"4" 3' - 4" 1' - 4" 23' - 0" 4' - 0" 14' - 0" 4' - 0" 14' - 0" 4' - 0"2' - 1"7' - 5"113-248" 24"
10' - 0"
4' - 6"1 5/8"106 2' - 1"1' - 0" 8' - 10" 8' - 10" 8' - 8" 2" 8' - 10"EQ3' - 0"EQEQ3' - 0"EQEQ3' - 0"EQ55"32 1/2"5' - 6"
2"
7 5/8"MIN18".3' - 6"
3' - 6"2"2"
11' - 0" 2' - 10"MIN18".4"11"3' - 0"11"3' - 0"2' - 0"
3' - 4" 4' - 8"
7 5/8"
INTERIOR
BOLLARD-
TYP OF (9)MIN18".MIN18".MIN18".LOCATE BUILDING AT
GRID INTERSECTION
G-7. SEE CIVIL
W4
W4
W4
W4
W4
W4
W2W2
W1 W1 W4
W4
W4
7 5/8"
W1
W4
P4
P2
P3
P3
P2
P2
P2
P2
P2
P2
P2
P2
P2
P1
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
W4
W4
W2A
W2
3"3"3"3"16' - 0"34' - 8"16' - 0"9' - 6" 5' - 6 1/2" 3' - 0"
MEDICAL
118
115
118
5' - 6" 12' - 0" 5' - 6"
11' - 0" 18' - 0"1 5/8"1 5/8"2
A4.02
4
A4.02
18"4' - 0" 14' - 0" 4' - 0" 14' - 0"
119-1 119-2
3
A4.02
5
A4.03
3"3"3"3"
W1
P2
P2
P1
P1
P2
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FEC
FE
2
A4.03
3
A4.03
MEZZANINE
201
MECHANICAL CHASE
CORRIDOR
BELOW APP BAY
BELOW
COMPRESSOR
543
C
D
E
F
4' - 5 3/8"
ALIGN MEZZANINE
SLAB W/ FACE OF
WALL BELOW
W5
P2
W1
P2
P2
2
A4.02 5' - 0"5' - 0"3
A4.02
Floor Plan Notes
1. Wood stud walls are dimensioned to face of stud UON
2. CMU walls are dimensioned to face of CMU UON
3. Dimensions noted as clear are from final finished surface to final
finished surface.
4. See Sheet A7.2 for interior partition types. Interior partitions to be
type P2 if not marked otherwise
5. See Sheet A6.1 for exterior wall types. Exterior wall types to match
elevations
6. See slab plans A2.1 & A2.2 as well as Structural drawings for
recessed slabs.
7. See Structural drawings for AESS (Architecturally Exposed
Structural Steel) members. All exposed steel structure including
columns, beams and metal deck shall be painted
8. Structural, Mechanical, and Electrical components identified on
architectural plans are for general information and are not
intended to fully describe such features - refer to Structural,
Mechanical, and Electrical drawings for a full description.
9. All conduit, piping, and ductwork to be concealed UON or in an
exposed ceiling space. Paint all exposed conduits, piping and
ductwork
10.Provide blocking and backing for wall-mounted materials,
accessories, equipment, and furnishings - Coordinate with all other
disciplines. See FF&E plans A3.2 for additional wall backing
locations.
Floor Plan Legend
DS Downspout- See
FEC Fire Extinguisher Cabinet- Recessed - See
TB-XX
MB-XX
Tackboard (TB) CFCI, Markerboard (MB) CFCI
& Flat screen monitor (FS) OFCI- See
Schedule on A9.1- Refer to interior elevations
for dimensioned locations
FE Fire Extinguisher- Wall Mounted
PB-XX
FS-XX
Floor drain & sump- See Mech-
2' x 2' square sump @ 1/8" per foot
FD
MW Microwave
DW Dishwasher
FEC Fire Extinguisher Cabinet
FE Fire Extinguisher - Wall Mounted
HR Hose Reel
AD Air Drop
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No: 17-000172
A3.01
Floor Plans
Conditional Use
Permit
Fire Station 15
August 18, 2017
N Scale: 1/8" = 1'-0"A3.01
First Floor Plan1
N Scale: 1/8" = 1'-0"A3.01
Mezzanine Plan2
UP
STATION
OFFICE
APPARATUS
BAY
LOBBY
LAUNDRY
FITNESS
BUNK 4
BUNK 3
BUNK 2
BUNK 1
DECON
CUSTODIAL
HOSE
STORAGE
BUNKER
GEAR
DAY
ROOM
DINING
KITCHEN
PATIO
PATIO
SHOPCHARGINGPANTRY
DOUBLE
CHECK VALVE
ASSEMBLY
SPRINKLER
RISER
COMM
ADA
RESTROOM
R R R R F
OFFICER'S
OFFICE
DW
MW
MURPHY BEDW
D
FUTURE
AID CAR
FS-15
ENGINE
LOCKERS
CORRIDOR1
A4.02
1
A4.03
2
A4.03
3
A4.03
4
A4.03
A4.01
1
A4.012
A4.01
3
A4.01 4
PHOTOS
HOSE RACK
(OFOI)
EXTRACTOR
(OFOI)
SOAP
DISPENSER
(OFOI)
DRYER
CABINET
(OFOI)
CHAIN
STORAGE
CLEAR AREA FOR
BI-FOLD DOORS
LOCKER-
TYP OF (20)5' - 0"4' - 6"LOCKERS
HR
HR
35 GALLON
SOAP (OFOI)
AD
AD
SHOWER
ADA
SHOWER
HALL
HALL
HALL
HALL
PROPOSED
HAM RADIO
LOCATION
BROCHURES65432 7
A
B
C
D
E
G
H
J 5' - 8"4' - 6"5' - 4"5' - 0"24' - 0"5' - 0"27' - 4"9' - 0"13' - 0" 5' - 0" 23' - 0"40' - 0"10' - 0"
F
DF
TV
TV
TV
TV
BOLLARD
TYP
12"24"TV
WALKWAY4' - 5"4' - 0"5' - 0"3' - 0"10' - 0"6' - 3"4' - 0"2' - 6"4' - 6"
3' - 6"
9' - 0"11' - 8 1/4"11' - 8 1/4"3' - 6"5' - 6"7' - 0"2' - 10"21' - 2"3' - 4"18"2' - 6"2' - 0"4' - 6 5/8"4' - 0"4' - 10"4' - 0"4' - 10"4' - 0"4' - 6 5/8"2' - 0"4' - 11 3/4"
MEDICAL
2
A4.02
4
A4.02
2' - 6" 2' - 6"1' - 3"3
A4.02
24" 24"
5
A4.03
6' - 9"ALERTING
FE
FEC
MEZZANINE
2
A4.03
3
A4.03
MECH CHASE
CORRIDOR
BELOW
APP BAY
BELOW
COMPRESSOR
543
C
D
E
F
2
A4.02
3
A4.02
5' - 0"24' - 0"5' - 0"5' - 0" 23' - 0"
Floor Plan Notes
1. Wood stud walls are dimensioned to face of stud UON
2. CMU walls are dimensioned to face of CMU UON
3. Dimensions noted as clear are from final finished surface to final
finished surface.
4. See Sheet A7.2 for interior partition types. Interior partitions to be
type P2 if not marked otherwise
5. See Sheet A6.1 for exterior wall types. Exterior wall types to match
elevations
6. See slab plans A2.1 & A2.2 as well as Structural drawings for
recessed slabs.
7. See Structural drawings for AESS (Architecturally Exposed
Structural Steel) members. All exposed steel structure including
columns, beams and metal deck shall be painted
8. Structural, Mechanical, and Electrical components identified on
architectural plans are for general information and are not
intended to fully describe such features - refer to Structural,
Mechanical, and Electrical drawings for a full description.
9. All conduit, piping, and ductwork to be concealed UON or in an
exposed ceiling space. Paint all exposed conduits, piping and
ductwork
10.Provide blocking and backing for wall-mounted materials,
accessories, equipment, and furnishings - Coordinate with all other
disciplines. See FF&E plans A3.2 for additional wall backing
locations.
Floor Plan Legend
DS Downspout- See
FEC Fire Extinguisher Cabinet- Recessed - See
TB-XX
MB-XX
Tackboard (TB) CFCI, Markerboard (MB) CFCI
& Flat screen monitor (FS) OFCI- See
Schedule on A9.1- Refer to interior elevations
for dimensioned locations
FE Fire Extinguisher- Wall Mounted
PB-XX
FS-XX
Floor drain & sump- See Mech-
2' x 2' square sump @ 1/8" per foot
FD
MW Microwave
DW Dishwasher
FEC Fire Extinguisher Cabinet
FE Fire Extinguisher - Wall Mounted
HR Hose Reel
AD Air Drop
Client Project No:
Date:
SSW Architects
Project No:
CAG-17-046
17001
COR Permit No: 17-000172
A3.02
FF&E Plans
Conditional Use
Permit
Fire Station 15
August 18, 2017
N Scale: 1/8" = 1'-0"A3.02
First Floor FF&E1
N Scale: 1/8" = 1'-0"A3.02
Mezzanine FF&E2
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2'-4"
INSIDE RIM
FLOWA
514"2'-0"INSIDE2'-012"OUTSIDEB 2'-0"2'-8"6'-9"5"5"7'-1"OUTSIDE RIM2'-4"INSIDE RIM2'-4"INSIDE RIM2'-4"INSIDE RIM2'-0"BBH
6"AAINLET STUB(OPTIONAL)OUTLET STUBOUTLET PIPEFROM FLOWKITFILTRATIONBAY INLETPERMANENT POOL LEVELACCESS COVERCONCRETE COLLARAND REBAR TO MEETHS20 IF APPLICABLE BYCONTRACTOROPTIONAL SLOPED LIDCORNER ELEVATIONSTO BE SPECIFIED BYENGINEERSTORMFILTERCARTRIDGE TYP.FLOWKIT TYP.CLEANOUTACCESS PLUGON WEIR WALLPERMANENTPOOL ELEVATIONCARTRIDGESUPPORT TYP.CATCHBASIN FOOT(TYP. OF 4)FINISHED GRADEWEIR WALLFLOATABLES BAFFLELIFTING EYE(TYP. OF 4)VANED INLET GRATE(SOLID COVEROPTIONAL)1'-0"COLLARPLAN VIEWSECTION A-ASECTION B-BCATCHBASIN FOOT(TYP. OF 4)FILTRATIONBAY INLET TYP.OUTLETINLETCONFIGURATIONSSTRUCTURE IDWATER QUALITY FLOW RATE (cfs)PEAK FLOW RATE (<1.8 cfs) RETURN PERIOD OF PEAK FLOW (yrs)CARTRIDGE FLOW RATE (gpm)MEDIA TYPE (CSF, PERLITE, ZPG, GAC, PHS)RIM ELEVATIONPIPE DATA:I.E.DIAMETERINLET STUBOUTLET STUBNOTES/SPECIAL REQUIREMENTS:2-CARTRIDGE DEEP CATCHBASINSTORMFILTER DATASLOPED LIDSOLID COVEROUTLETINLETOUTLETINLETINLETINLETSD #290.02490.13381007.5ZPG348.20'348.20'-346.30'8"NONOCARTRIDGE HEIGHTSPECIFIC FLOW RATE (gpm/sf)CARTRIDGE FLOW RATE (gpm)MINIMUM HYDRAULIC DROP (H)27"18"18" DEEP3.05'2.3'3.3'2 gpm/ft²22.51 gpm/ft²2 gpm/ft²1 gpm/ft²2 gpm/ft²1 gpm/ft²11.25157.5157.5STORMFILTER TREATMENT CAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. 2 CARTRIDGE CATCHBASIN HAS A MAXIMUMOF TWO CARTRIDGES. SYSTEM IS SHOWN WITH A 27" CARTRIDGE, AND IS ALSO AVAILABLE WITH AN 18" CARTRIDGE. STORMFILTER CATCHBASIN CONFIGURATIONSARE AVAILABLE WITH A DRY INLET BAY FOR VECTOR CONTROL.PEAK HYDRAULIC CAPACITY PER TABLE BELOW. IF THE SITE CONDITIONS EXCEED PEAK HYDRAULIC CAPACITY, AN UPSTREAM BYPASS STRUCTURE IS REQUIRED.CARTRIDGE SELECTIONINLET PERMANENT POOL LEVEL (A)1'-0"1'-0"2'-0"PEAK HYDRAULIC CAPACITY1.01.01.8OVERALL STRUCTURE HEIGHT (B)4'-9"3'-9"4'-9"OUTLETINLETCONFIGURATIONSSTRUCTURE IDWATER QUALITY FLOW RATE (cfs)PEAK FLOW RATE (<1.8 cfs) RETURN PERIOD OF PEAK FLOW (yrs)CARTRIDGE FLOW RATE (gpm)MEDIA TYPE (CSF, PERLITE, ZPG, GAC, PHS)RIM ELEVATIONPIPE DATA:I.E.DIAMETERINLET STUBOUTLET STUBNOTES/SPECIAL REQUIREMENTS:2-CARTRIDGE DEEP CATCHBASINSTORMFILTER DATASLOPED LIDSOLID COVEROUTLETINLETOUTLETINLETINLETINLETSD #260.02390.12491007.5ZPG347.22'347.22'-344.90'8"NONOPROEERALENGI
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Fire Station 15 Construction Mitigation Description
Proposed Construction Dates:
February 2018- December 2018
Proposed Hours of Construction:
Per 4-4-030 C.: 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. Actual hours within this time period
will vary dependent upon the contractor.
Haul hours shall be restricted to the hours between eight-thirty (8:30) a.m. and three-thirty
(3:30) p.m., Monday through Friday unless otherwise approved in advance by the
Development Services Division.
Proposed Hauling and Transportation Routes:
The hauling and transportation to the site will be from interstate freeway 405 to N 30th St.
the construction entrance will be at the southeast corner of the site. A second
construction entrance will be provided for the Reservoir project.
Measures to Minimize Dust, Traffic and Transportation Impacts:
The TESC system will be designed in accordance with the City of Renton Core Requirement
#5 and the Department of Ecology (DOE) Construction Stormwater Pollution Prevention
Plan (SWPPP).
TESC facilities will include:
· Stabilized construction entrance
· Silt fencing
· Catch basin inserts
· Tree protection as necessary
· Sediment tank as necessary (10,000 gallons minimum)
· Other miscellaneous sediment control facilities
·
Special Hours of Operation:
Fire Station 15
1404 N 30th St, Renton, WA
Technical Information Report
September 22, 2017
Prepared by:
LPD Engineering, PLLC
1932 1st Avenue
Suite 201
Seattle, WA 98101
Contact: Laurie J. Pfarr, P.E.
(206) 725-1211
Prepared for:
Schreiber Starling Whitehead
Architects
901 5th Avenue #3100
Seattle, WA 98164
Contact: Keith Schreiber, AIA
(206) 682-8300
12131 113th Avenue NE, Suite 203, Kirkland, WA 98034 | 425.821.3665 |
MEMORANDUM
Date: July 11, 2017 TG:1.16532.00
To: Keith Schreiber
From: Dan McKinney, Transpo Group
Subject: Renton Fire Station #15 Trip Generation
The purpose of this memorandum is to provide a trip generation assessment for the proposed
Renton Fire Station #15. Specifically, this document identifies daily and peak hour trip generation
associated with the fire station based on employees, visitors, and emergency calls.
Project Description
The proposed Fire Station #15 is located in the City of Renton at 1404 N 30th Street and consist of
one single building: a single-story fire station totaling approximately 7,500 gross square feet. Site
development includes an access drive, fire apparatus aprons (front and drive-thru rear aprons),
employee and public parking areas, pedestrian access walkways, and associated landscape
areas. The proposed schematic concept includes two apparatus bays in conformance with
program for height, width, and length. The bays have drive-through capability. Apparatus support
and station office functions are located directly adjacent to the apparatus bays. The western
component houses the dining/kitchen/day room with direct access to outside and the back of the
house includes training room functions, gear storage and bunking rooms.
The addition of a new fire station will provide improved response times for fire and emergency
services in the Kennydale neighborhood and the Renton Regional Fire Authority service area,
relieving some of the current load placed on Fire Stations 11, 12 and 16. The station will in
operation at all hours of the day every day of the week to provide emergency response to the local
area. Three employees are on-shift at all times, with shifts extending for a full 24 hours.
Trip Generation
The following section describes anticipated trip generation for Fire Station #15. Since rates for fire
stations are not published in the Institute of Transportation Engineers (ITE) Trip Generation (9th
Edition, 2012), the anticipated trip generation described below was estimated based on
information provided by the Renton Regional Fire Authority (RFA). Trips can be broken down into
three categories: fire station staff, visitors/miscellaneous trips, and emergency calls.
Fire Station Staff
Fire Station #15 will have capacity for three employees. Employees will work 24-hour shift periods,
with shift changes occurring daily at 8:00 a.m. Assuming two trips per employee (one inbound and
one outbound) per day, a total of 6 trips per day is expected. Since shift changes are anticipated to
occur during the AM peak hour, no PM peak hour employee-generated trips are expected.
Visitors and Miscellaneous Trips
In addition to employee-generated trips, visitor/miscellaneous trips are expected in the form of
public visits and any delivery or maintenance trips. As a result, a total of 20 non-employee trips
was estimated (10 entering and 10 exiting) during an average weekday. 20 percent of these trips
are expected to occur during the AM and PM peak periods, or 2 trips during the AM peak hour and
2 trips during the PM peak hour.
Title: Murray, Smith & Associates, Inc., - Kennydale 320 Zone Reservoir Project
Level 2, Basic Tree Assessment
Renton, Washington
Prepared for: Murray, Smith & Associates, Inc.
Attn: Jenna Anderson
601 Union St, Suite 622
Seattle, WA 98101
Prepared by: Urban Forestry Services, Inc.
Mr. Paul H. Thompson
ASCA Registered Consulting Arborist #509
ISA Certified Arborist® #PN-1838A
ISA Tree Risk Assessment Qualified
Date: September 13th, 2017
CONTENTS: Summary
Introduction
Findings and Recommendations
Method of Assessment
Tree Assessment Site Plan
Plan Overview
Plan North Area
Plan South Area
Tree Assessment Matrix
Definitions
Critical Root Zone Explanation
General Tree Protection Guidelines
Assumptions and Limitations
Summary
Of 32 trees assessed at 1404 N 30th St., Renton, Washington, 4 trees are recommended
for removal due to their poor condition, 30 trees are recommended for removal because of
construction impact, and 2 trees are recommended for protection, with one located offsite and
one onsite. Pruning is recommended for one of the retained trees onsite. Methods for
protecting the trees are enclosed. It is also recommended that an ISA Certified Arborist®
monitor the clearing and grading around the retained trees.
Introduction
As requested by Jenna Anderson of Murray, Smith & Associates, Inc., on October 5, 2016,
I assessed 32 trees for health, condition and risk of failure in a Level 2 Basic Assessment at
1404 N 30th St., Renton, WA 98056.
In addition to assessing the health, condition and risk of failure of the 32 trees, Urban
Forestry Services, Inc., was asked to complete this assessment to determine the impact of
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Page 1 of 2 LUA17-000632
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: Clark H. Close, 425-430-7289, cclose@rentonwa.gov)
1. RMC section 4-4-030C.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 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 (5 0'). 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.
7. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is responsible
for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007)
and /or your U.S. Fish and Wildlife Service permit.
Development Engineering:
(Contact: Ian Fitz-James, 425-430-7288, IFitz-James@rentonwa.gov)
1. See Attached Development Engineering Memo dated October 23, 2017.
Fire Authority:
(Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov)
1. Preliminary fire flow is 1,750 gpm. Two fire hydrants are required. One within 150-feet and one within
300-feet. One hydrant exists across the street. One new hydrant shall be provided and be within 50-
feet of the fire department connection for the fire sprinkler system.
ADVISORY NOTES TO APPLICANT
Page 2 of 2 LUA17-000632
2. Approved fire sprinkler and fire alarm systems are required throughout all the buildings. Direct outside
access is required to the fire sprinkler riser room. Fire alarm system is required to be fully addressable
and full detection is required. Separate plans and permits required by the fire department.
3. Fire department apparatus access roadways are required within 150 -feet of all points on the building.
Fire lane signage required for the on-site roadway. Required turning radius 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.
4. Separate plans and permits are required for any proposed fuel tanks for on -site generators.
Technical Services:
(Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov)
1. Reviewed, no comment.
Community Services:
(Contact: Leslie Betlach, 425-430-6619, lbetlach@rentonwa.gov)
1. Reviewed, no comment.
Police:
(Contact: Sandra Havlik, 425-430-7520, shavlik@rentonwa.gov)
1. Reviewed, no comment.
Building:
(Contact: Craig Burnell, 425-430-7290, cburnell@rentonwa.gov)
1. Recommendations of the geotechnical report must be followed as a condition of building permits.
2. Update geotechnical report to reflect 2015 International Code criteria.
K:\Projects\2017\PR17000490_FIRE STATION 15\LUA17-000632\08.Review Comments - Drafts\C_Civil Advisory Notes
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DEPARTMENT OF COMMUNITY
& ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: October 23, 2017
TO: Clark Close, Senior Planner
FROM: Ian Fitz-James, Civil Engineer III
SUBJECT: Utility and Transportation Comments for Fire Station 15
LUA17-000632
I have reviewed the application for Fire Station 15 located at 1404 N. 30th Street (KC Parcel
Number 3342103245): and have the following comments:
EXISTING CONDITIONS
The site is approximately 1.09 acres in size and is rectangular in shape. The southern 0.71 acres
of the site is the location of the proposed Fire Station 15. The northern 0.38 acres of the site is
the location of the proposed Kennydale Reservoir. The site is currently vacant with large grassy
areas and some trees. The existing conditions below apply to the whole parcel.
WATER: Water service is provided by the City of Renton. The site is in the Highlands service
area in the 435’ hydraulic pressure zone. The approximate static water pressure is 98 psi at a
ground elevation of 210’.
There is an existing 12” water main south of the site in N. 30th Street that can deliver 2,800
gallons per minute (gpm). Reference project file WTR2700456 in COR Maps for record drawings.
The site is served by an existing 3/4” domestic water service.
There are two existing fire hydrants in the vicinity of the site. One is located across N. 30th
Street from the site’s southwest corner (COR Facility ID HYD-N-00001). The other is located at
the southwest corner of N. 30th Street and Interstate 405 ramp approximately 215’ from the
site’s southeast corner.
SEWER: Sewer service is provided by the City of Renton. There is an existing 8” concrete sewer
flowing from east to west south of the site in N. 30th Street. There is also an existing 8” concrete
sewer flowing from north to south along the eastern boundary of the site. The sewer begins at
a manhole (COR Facility ID MH3489) approximately 130’ feet north of the site’s southeast corner
and connects to the sewer main in N. 30th Street mentioned above. Reference Project File
WWP2700179 in COR Maps for record drawings of both sewer mains.
STORM DRAINAGE: The project site is currently vacant. The site consists of grassy areas with
some trees scattered throughout. The site slopes gently from the northeast to the southwest.
There is no existing on-site conveyance system. There is an existing 12” piped conveyance
system that flows from east to west along N. 30th Street frontage. There are two type 1 catch
basins along the project frontage that drain to this conveyance system. One is near the site’s
Fire Station 15 – LUA17-00632
Page 2 of 8
October 23, 2017
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LU17000632_171023_v1.docx
southeast corner (COR Facility ID 134250). The other is located near the site’s southwest corner
(COR Facility ID 134231). The City does not have record drawings for this system.
STREETS: N. 30th Street south of the site is classified as a minor arterial street. The N. 30th
Street existing street section consists of a pavement width of approximately 42’ with a 13’ travel
lane in each direction and an 8’ parking lane on both sides of the street. A 0.5’ curb and a 5’
concrete sidewalk directly behind the curb exist along each side of the pavement. The existing
right of way width for N. 30th Street is approximately 60’ for the majority of the frontage per the
King County Assessor’s Map. The existing right of width for N. 30th Street adjacent to a portion
of the eastern frontage is 72’ per the King County Assessor’s Map.
WATER COMMENTS
1. The utility plan shows one new fire hydrant on private property. The hydrant is served
off of the new 16” water main that will be installed in the shared driveway to serve the
new Kennydale Reservoir north of the Fire Station. All fire hydrants on private property
shall be located in a public utility easement.
2. A fire sprinkler stub with a double detector check valve assembly (DDCVA) in an exterior
underground vault within private property per COR Std. Plan 360.2 is required. The
DDCVA may be installed in the building if it meets the conditions as shown on COR Std.
Plan 360.5 for the installation of a DDCVA inside a building.
The utility plan shows a 4” fire line connected to the new 16” water main that will serve
the new Kennydale Reservoir. The DDCVA is shown in a sprinkler riser room in the rear
of the building in the submitted architectural plans. A post indicator valve (PIV) per City
standards is required on the fire line. The fire sprinkler stub and appurtenance shall be
sized by a registered fire sprinkler designer / contractor. A Fire Department Connection
(FDC) is provided at the corner of the shared driveway and rear parking lot. The FDC is
within 50’ from the proposed fire hydrant.
Per COR Std. Plan 360.5, the DDCVA shall be within 50’ of the public water main
easement boundary or right of way line. The DDCVA as shown is 96’ from the water
main. This is not in compliance with COR Std. Plan 360.5. The plans submitted for
construction permit review shall be revised to show compliance.
3. The utility plan shows a 2” domestic water service and meter for domestic water use.
The service is connected to the new 16” water main that will serve the new Kennydale
Reservoir. The plan shows the meter on private property. The meter shall be located in
a public utility easement. A reduced pressure backflow assembly (RPBA) shall be
installed behind the meter within private property. The RPBA shall be installed in an
above ground heated enclosure per COR Std. Plan 350.2. The RPBA may be located
inside the building if a drainage outlet for the relief valve is provided and the location is
approved by the City Plan Reviewer and City Water Utility Department. The submitted
architectural plans do not show a location for the RPBA in the building.
Fire Station 15 – LUA17-00632
Page 3 of 8
October 23, 2017
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4. The utility plan shows the existing 3/4” water meter being relocated and reused for
irrigation service. The plan shows the meter located on private property in the garage
drive aisle. This meter should be located outside of the drive aisle and contained in a
public utility easement if on private property. A double check valve assembly (DCVA) on
private property is required behind the meter per COR Std. Plan 340.8.
5. Water system improvements shall be designed in accordance with Appendix J of the
City’s 2012 Water System Plan. Adequate horizontal and vertical separation between
new water mains and other existing and proposed utilities (sewer lines, storm drains,
gas lines, power and communication ducts) shall be provided for the operation and
maintenance of the water main. Retaining walls, rockeries, or similar structures cannot
be installed over the water main unless the water main is installed inside of a steel
casing.
6. The site is located within Zone 2 of the City’s Aquifer Protection Area.
7. Per RMC 4-1-180B-2b, City-owned properties are exempt from all system development
charges.
SEWER COMMENTS
1. The utility plan shows a new 6” side sewer connecting to the existing 8” sewer main
along the eastern property frontage. The new side sewer shall run at a slope of at least
2% from the building to the main.
2. The utility plan shows a new oil/water separator located outside of the building in the
garage drive aisle. All wastewater from the garage area shall be routed through this
oil/water separator. A specification for the oil/water separator should be included with
the construction plans. The oil/water separator shall be approved by the City Plan
Reviewer and City Wastewater Utility Department prior to construction permit issuance.
3. A 10’ utility easement will be required for the existing sewer main along the eastern
property line.
4. Per RMC 4-1-180B-2b, City-owned properties are exempt from all system development
charges.
STORM DRAINAGE COMMENTS
1. A drainage plan and Technical Information Report (TIR) prepared by LPD Engineering
dated September 22, 2017 were submitted to the City as part of the site plan submittal.
The site is located in the City’s Peak Rate Flow Control Standard (Existing Site
Conditions). The site is located in the East Lake Washington drainage basin. The TIR
was completed in accordance with the standards found in the 2017 Renton Surface
Water Design Manual (RSWDM). All nine core and six special requirements were
addressed.
Fire Station 15 – LUA17-00632
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The project proposes to route the majority of the on-site impervious surfaces to a
Brentwood Stormtank Detention system located between the Fire Station and N. 30th
Street to meet Core Requirement #3 – Flow Control Facilities. A flow control riser tee is
located downstream of the detention system. The TIR shows that the 2-yr and 100-year
peak runoff rates are matched but the 10-year runoff rate is not matched. Per Section
1.2.3.1 of the 2017 RSWDM, the developed peak discharge rates must match the
existing peak discharge rates for the 2-yr, 10-yr, and 100-yr return periods. The project
will be required to show compliance with this requirement at the time of construction
permit review to satisfy Core Requirement #3. The Stormtank system, Stormfilter or
other water quality treatment facility, bioretention facility, pervious pavement, catch
basin, and stormwater conveyance on the site will be private maintained. A recorded
stormwater covenant for maintenance of the stormwater facilities and on-site BMPs will
be required.
The Stormtank system as proposed does not meet the requirements for a detention
tank per Section 5.1.2 or a detention vault per Section 5.1.3. The revised TIR and
construction plans shall clearly show how the Stormtank system meets all of the
requirements of either a detention tank or detention vault. If not all of the
requirements can be met, a stormwater adjustment per Section 1.4 would have to be
submitted and approved prior to issuance of the construction permit. City staff would
not support an adjustment to omit requirements related to access, maintenance,
height, sediment storage, or ventilation.
A simple conveyance calculation was submitted in the TIR. The engineer shows that the
pipe segment that discharges stormwater from the site to the City’s piped stormwater
conveyance system can convey the 25-year flow from the entire site if it were
impervious. This conveyance calculation is shown to demonstrate compliance with Core
Requirement #4 – Conveyance System.
As the Fire Station will require a commercial building permit, Enhanced Basic Water
Quality treatment is required unless such treatment is waived or reduced by the area-
specific exceptions found in Section 1.2.8.1 to satisfy Core Requirement #8 – Water
Quality Facilities.
According to the TIR, the project proposes approximately 8,965 square feet of pollution
generating impervious surface (PGIS). The project proposes to treat the PGIS from the
shared driveway and the driveway from the Fire Station to N. 30th Street using a
Stormfilter system. A Stormfilter system is an acceptable treatment option for Basic
Water Quality treatment however it is not acceptable as a standalone option for
Enhanced Basic Water Quality treatment. The plans and TIR should be updated to show
compliance the Enhanced Basic Water Quality treatment standard by providing an
Enhanced Basic Water Treatment facility per Section 6.1.2 unless exempted per Section
1.2.8.1 for all PGIS on the site. PGIS with permeable pavement may be exempted for
the water quality standards if the Soil Treatment Exemption found in Section 1.2.8 is
met for the soils underneath the pavement. If this exemption is pursued a letter from a
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geotechnical engineer will be required stating that all of the criteria are met. Permeable
pavement alone is not a water quality treatment facility.
The TIR and plans do not show treatment of the drive apron on the north side of the
building. This area needs to be treated by an acceptable water quality facility. The
areas on the southern end of the shared driveway and the driveway between the Fire
Station and N. 30th Street that are not being treated by a water quality treatment facility
are less than 5,000 square feet in area.
The project is required to implement on-site BMPs per Section 1.2.9 to satisfy Core
Requirement #9 – On-Site BMPs. On-site BMPs need to be evaluated in order of
preference as required per Section 1.2.9.2.2. This evaluation should be included in the
updated TIR that is submitted for construction permit review. The TIR did not have
infiltration testing results from the geotechnical engineer when designing the on-site
BMPs proposed on the plan.
The TIR determined that full dispersion and full infiltration are infeasible. The updated
TIR should clearly explain how full infiltration is infeasible per Section 5.2. The TIR and
plans propose to use bioretention and permeable pavement for on-site BMPs. The
updated TIR and plans must clearly show how each of these BMPs are implemented to
the maximum extent feasible. After implementation of those BMPs to the maximum
extent feasible, the project must ensure that the minimum BMP implementation per
Section 1.2.9.2.2 #5 is met. For projects that will result in an impervious surface
coverage greater than 65% of the buildable portion of the site / lot, on-site BMPs must
be applied to 20% of the target impervious surfaces or to an impervious area equal to at
least 10% of the site/lot, whichever is less.
The updated TIR and plans should show compliance with all biorentenion design
standards per Section 2.6 and permeable pavement design standards per Section 2.7.
Bioretention with underdrains is not allowed for Core Requirement #9 unless approved
by a stormwater adjustment.
2. The drainage plan shows that the existing N. 30th Street flowline adjacent to the site will
remain in the same location. The storm drainage from the project will tie into the
existing 12” piped conveyance system along this flowline.
3. A geotechnical report evaluating site soil conditions was prepared by HWA Geosciences
dated August 31, 2017. Per the geotechnical report, the site is underlain by recessional
outwash soils. The outwash soils were classified as loose to medium dense. The report
notes that there is about 5-7’ of sandy silt soils with a high percentage of fines were
encountered. The report recommends that these soils are over-excavated and
backfilled with free-draining granular material such as pea gravel where pervious
pavement and the bioretention pond are proposed.
A pilot infiltration test (PIT) was performed on the site in the location of the proposed
bioretention pond. The PIT was performed at a depth of 7’. The report notes that
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cleaner sands are encountered at approximately 7’ below the surface. The two areas
were excavated to a depth of approximately 3’ below grade. Based on the test results,
the geotechnical engineer concluded that a long-term infiltration rate of 1.1 in/hour be
used for design assuming the upper 7 feet of soil (silty material) was removed.
5. Per RMC 4-1-180B-2b, City-owned properties are exempt from all system development
charges.
TRANSPORTATION/STREET COMMENTS
1. Transportation impact fees do not apply to this project.
2. N. 30th Street is classified as a minor arterial. Per RMC 4-6-060, the minimum right of
way width for a minor arterial with four lanes is 91’. The paved roadway section is 54’
consisting of 4 – 11’ travel lanes and 2 – 5’ bike lanes. A 0.5’ curb, 8’ planter, 8’
sidewalk, and 2’ clear from the back of sidewalk are required along each side of the
roadway. The King County Assessor’s Map shows a current right of way width of
approximately 60’ to 72’ for N. 30th Street adjacent to the site. A right of way dedication
of approximately 15.5’ would be required along the project frontage.
3. The applicant submitted a street modification request dated September 28, 2017 with
the land use application. The street modification request is to modify the minor arterial
street section per RMC 4-6-060 to a modified minor arterial street section. Specifically
the applicant requests a street section that keeps the current curb line in its existing
location along the northern frontage of N. 30th Street adjacent to the site with an 8’
planter, 8’ sidewalk, and 2’ clear from back of sidewalk. The applicant proposes a right
of way dedication of approximately 11’ along the project’s N. 30th Street frontage to
accommodate the modified minor arterial street section improvements. The applicant
also requested a waiver of installation of the frontage improvements. The applicant
proposes to keep the existing sidewalk in its current location.
City staff is recommending approval of the applicant’s street modification request.
Please see the Street and Driveway Modification Criteria and Analysis for a complete
summary of the request, staff analysis, and staff recommendation. City staff is not
recommending approval of the waiver of installation of frontage improvements. City
staff recommends that approximately 11’ of right of way be dedicated along the
project’s N. 30th Street frontage and frontage improvements in accordance with the
modified minor arterial street section be installed. The construction plans submitted for
construction permit review should be updated to show these improvements.
The applicant also proposes to modify the maximum driveway width from 30’ to 36’ for
the driveway from the Fire Station garage to N. 30th Street.
City staff is recommending approval of the applicant’s driveway modification request.
Please see the Street and Driveway Modification Criteria and Analysis for a complete
summary of the request, staff analysis, and staff recommendation.
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4. A shared driveway is proposed along the western property frontage to provide access to
the rear of the Fire Station and to the Kennydale Reservoir. The proposed shared
driveway meets all design standards found in RMC 4-6-060. The shared driveway is
approximately 197’ in length (before right of way dedication), has a pavement width of
16’ – 24’, and a grade of less than 15%. Where feasible, drainage from the shared
driveway will be captured by the site’s conveyance system and routed to the onsite
stormwater detention system.
5. The proposed driveway curb cut for the shared driveway is 20’ in width and is located 5’
from the adjacent property line. This meets the driveway width standards found in RMC
4-4-080. City staff recommends approval of a modification to the maximum driveway
width to 36’ for the driveway from the Fire Station garage to N. 30th Street. Please see
the Street and Driveway Modification Criteria and Analysis for a complete summary of
the request, staff analysis, and staff recommendation.
6. A Trip Generation Memo prepared by Transpo Group dated July 11, 2017 was submitted
to the City as part of the site plan submittal. The Institute of Transportation Engineers
(ITE) Trip Generation Manual 9th Edition does not publish trip generation rates for a fire
station. The memo looked at trip generation based upon staffing information from the
Renton Regional Fire Authority (RRFA), estimates on visitors and miscellaneous trips to
the site, and emergency call information from the RRFA.
The memo notes that the Fire Station will have the capacity for 3 employees. The
employees will work 24-hour shifts with shift change occurring daily at 8:00 AM per the
RRFA. Thus the memo assumes the Fire Station will generate a total of 6 trips per day
(one inbound and one outbound) for the employees in the peak AM hours (6:00 – 9:00).
The memo estimates visitors and miscellaneous trips to the Fire Station. There is
assumed to be 20 non-employee trips to the site (10 entering and 10 existing). 20
percent of these trips are expected to occur in the AM and PM peak hours. Thus, 4 total
trips are expected in each the AM and PM peak hours.
The memo also estimates that 20 emergency vehicle trips are expected to occur on an
average weekday. This is based on information provided by the RRFA regarding the
anticipated response calls that will be fielded by this station. 20 percent of these trips
are expected to occur in the AM and PM peak hours. Thus 4 total trips are expected in
each of the AM and PM peak hours.
The memo concludes that Fire Station 15 will generate 14 trips in the AM peak hours
(6:00 – 9:00) and 8 trips in the PM peak hours (3:00 – 6:00). The City requires a Traffic
Impact Analysis if new vehicular traffic exceeding 20 vehicles per hour in either the AM
or PM peak hours is generated by a development. As this project does not meet that
threshold, no further review is needed.
City staff is in agreement with the findings of this memo and will not require any further
studies.
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7. Street lighting per City standards is required along the N. 30th Street frontage. A street
lighting analysis and plan shall be submitted with the construction permit.
8. Advanced warning signs for the Fire Station along N. 30th Street per MUTCD standards
are required.
9. Paving and trench restoration within the City of Renton right of way shall comply with
the City’s Restoration and Overlay requirements.
GENERAL COMMENTS
1. All new utility lines (i.e. electrical, phone, and cable services, etc.) within the site must
be underground. The construction of these franchise utilities must be inspected and
approved by a City of Renton inspector.
2. Retaining walls that are 4’ or taller from bottom of footing and stormwater detention
vaults will require a separate building permit. Structural calculations and plans
prepared by a licensed engineer will be required as part of the building permit review.
3. All civil plans shall conform to the current City of Renton survey and drafting standards.
Current drafting standards can be found on the City of Renton website.
4. A separate plan submittal will be required for a construction permit for utility work and
street improvements. All plans shall be prepared by a licensed Civil Engineer in the
State of Washington.
5. Please see the City of Renton Development Engineering website for the Construction
Permit Application and Construction Permit Process and Submittal Requirements.
Please contact the City to schedule a construction permit intake meeting.
6. All plan review for the City is now paperless. Please see http://rentonwa.gov/paperless/
for more information.