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TECHNICAL INFORMATION REPORT
Honey Dew Elementary School
Safety Upgrades
800 Union Avenue NE
Renton, WA 98059
November 11, 2022
PREPARED FOR:
Renton School District – Capital Planning & Construction
Mike Cato
7812 South 124th Street
Seattle, WA 98178
PREPARED THROUGH:
Integrus Architecture
Johnny Hong
117 South Main Street, Suite 100
Seattle, WA 98104
PREPARED BY:
Jacobson Consulting Engineers
Sascha Eastman
206.426.2600
sascha@jacobsonengineers.com
i
Technical Information Report for
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
JCE Project No. C220033-0129
November 11, 2022
TABLE OF CONTENTS
1. PROJECT OVERVIEW ................................................................................................................................ 3
GENERAL DESCRIPTION .............................................................................................................................. 3
EXISTING CONDITIONS ................................................................................................................................. 3
PROPOSED DRAINAGE SYSTEM ................................................................................................................. 4
2. CONDITIONS AND REQUIREMENTS SUMMARY ......................................................................................... 6
CORE REQUIREMENT #1: DISCHARGE AT THE NATURAL LOCATION .................................................. 6
CORE REQUIREMENT #2: OFFSITE ANALYSIS ......................................................................................... 6
CORE REQUIREMENT #3: FLOW CONTROL FACILITIES.......................................................................... 7
CORE REQUIREMENT #4: CONVEYANCE SYSTEM .................................................................................. 7
CORE REQUIREMENT #5: CONSTRUCTION STORMWATER POLLUTION PREVENTION ................... 7
CORE REQUIREMENT #6: MAINTENANCE AND OPERATIONS ............................................................... 8
CORE REQUIREMENT #7: FINANCIAL GUARANTEES AND LIABIITY ...................................................... 8
CORE REQUIREMENT #8: WATER QUALITY FACILITIES ......................................................................... 8
CORE REQUIREMENT #9: ON-SITE BMPS .................................................................................................. 8
SPECIAL REQUIREMENT #1: OTHER ADOPTED AREA-SPECIFIC REQUIREMENTS ........................... 9
SPECIAL REQUIREMENT #2: FLOOD HAZARD AREA DELINEATION ..................................................... 9
SPECIAL REQUIREMENT #3: FLOOD PROTECTION FACILITIES ............................................................ 9
SPECIAL REQUIREMENT #4: SOURCE CONTROLS .................................................................................. 9
SPECIAL REQUIREMENT #5: OIL CONTROL .............................................................................................. 9
SPECIAL REQUIREMENT #6: AQUIFER PROTECTION AREA .................................................................. 9
3. OFFSITE ANALYSIS ................................................................................................................................ 10
FIELD INSPECTION ......................................................................................................................................10
DRAINAGE SYSTEM PROBLEM DESCRIPTIONS .....................................................................................10
UPSTREAM ANALYSIS .................................................................................................................................10
DOWNSTREAM ANALYSIS ..........................................................................................................................10
MITIGATION OF EXISTING OR POTENTIAL PROBLEMS .........................................................................10
4. FLOW CONTROL, LOW IMPACT DEVELOPMENT (LID), AND WATER QUALITY FACILITY ANALYSIS AND
DESIGN ......................................................................................................................................................... 11
FLOW CONTROL SYSTEM ..........................................................................................................................11
LOW IMPACT DEVELOPMENT (LID) ...........................................................................................................11
WATER QUALITY SYSTEM ..........................................................................................................................11
5. CONVEYANCE SYSTEM ANALYSIS AND DESIGN ...................................................................................... 12
6. SPECIAL REPORTS AND SUMMARY ........................................................................................................ 13
7. OTHER PERMITS ................................................................................................................................... 14
8. CSWPP ANALYSIS AND DESIGN ............................................................................................................. 15
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
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STANDARD REQUIREMENTS .....................................................................................................................15
9. BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT ....................................... 16
BOND QUANTITIES WORKSHEET..............................................................................................................16
FLOW CONROL AND WATER QUALITY FACILITY SUMMARY SHEET AND SKETCH .........................16
DECLARATION OF COVENANT FOR PRIVATELY MAINTAINED FLOW CONTROL AND WQ
FACILITIES .....................................................................................................................................................16
DECLARATION OF COVENANT FOR PRIVATELY MAINTAINED FLOW CONTROL BMP’S .................16
10. OPERATIONS AND MAINTENANCE MANUAL ........................................................................................... 17
11. FIGURES ............................................................................................................................................... 18
12. APPENDICES ......................................................................................................................................... 19
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1. PROJECT OVERVIEW
GENERAL DESCRIPTION
The following Drainage Report provides the design narrative and discussion for the Honey Dew Elementary School
Security Upgrades project scheduled to begin construction in the Summer of 2023. The storm water design for
the project was based on the requirements set forth in the 2022 City of Renton Water Design Manual (KCSWDM).
Honey Dew Elementary School is with the City of Renton jurisdictional limits at 800 Union Ave NE, Renton, WA
98059 (Parcel Numbers 1023059121 & 1023059007). The site is bordered on north side of the site by the Next
Door Church property, to the west is Union Ave NE, NE 8th Street to the south, and Bremerton Ave NE on the east
side of the school’s property. See Appendix A – Figure 1 Vicinity Map.
The proposed project consists of (2) two separate project areas, which we will refer to as Site Area ‘A’ on the west
side of the existing school building and Site Area ‘B’, which is the existing athletic field. Work in each project area
will consist of the following:
SITE AREA ‘A’
Work in Site Area ‘A’ will consist of replacing portions of existing concrete sidewalk adjacent to the ADA parking
stalls and crosswalk to main school entry with truncated dome patterns. Existing Crosswalk will also be removed
and replaced with new Thermoplastic striping. The (2) striped crosswalks at the parking lot entry and exit drives
will also be replaced with Thermoplastic striping.
The parking lot has some cracks that have formed over time and will introduce stormwater into cracks and below to
the asphalt base material and subgrade which could degrade the asphalt pavement to cause cracking and
alligatored pavement over time. Existing cracks will be neat sawcut and existing asphalt pavement sections
removed, subgrade compacted, then new asphalt pavement installed. The entire parking lot will then be cleaned,
seal coated, and restriped to match existing conditions.
As part of the security improvements to the site, existing concrete sidewalk will be sawcut and removed along the
bus drop-off and pick-up driveway adjacent to the school building, to install new security bollards. The security
bollards will provide security measures to parents, staff, and students to keep vehicles from “jumping” the curb
and driving onto the sidewalk.
SITE AREA ‘B’
Work in Site Area ‘B’ will consist of reconditioning the existing under-drained field by removing the top 3.5-inches
of sod, organics, and debris and then placing 3” of new sand and sod. The existing field section below consisting
of 4.5-inches to 7.5-inches of root zone and sand above the native subgrade, will remain. A new layer of sod will be
placed over the existing field. This portion of the project is considered maintenance to improve the drainage of the
existing field.
The in-field portions of the field will have organics removed/skimmed off, and any grass removed, then a new 4-
inch layer of in-field material will be added to the top for only the infield located in the NE corner of the athletic
field. The two infields located in the SW and SE corner of the athletic field will only be dressed up with less than
1-inch of infield mix as necessary. No additional work beyond what is described above, is proposed for the field.
EXISTING CONDITIONS
Honey Dew Elementary School is a developed campus consisting of single primary school building in the middle of
the campus, portable classroom buildings to the north, parking and drive areas on the west and south side of
building, hard surface play areas with covered play shelter and natural grass playfield to the east, and landscaping
around the property perimeter and in the parking lots. The main building is surrounded by low landscaping and
concrete sidewalks.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
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Storm water from the existing impervious roof areas on both the west and east sides of existing building are drained
via downspouts and tightlined to the south where they daylight to grass lined swales and drainage depressions
located behind the sidewalk along NE 8th Street. Storm water runoff from the parking lot hardscape on the west
side of the existing campus sheet slows to the SE and NW corners of the parking lot to trench drains installed at
the driveways, which also outfall to adjacent grass lined swales or depressions. The southeast parking lot that is
adjacent to the SW corner of the athletic field, sheet flows stormwater runoff to the right-of-way.
Storm water from the existing athletic field on the east side of campus, excluding the in-field areas which are not
under drained, is drained into the field drainage layer consisting of sod, root zone mix, and sand and is then
collected into underdrain pipes and conveyed south through a series of structures and pipes until it connects to the
existing storm system on the south side of NE 8th Street.
Table 1A below summarizes the land cover characteristics of the of the existing current Site Area ‘A’ (See Civil
Sheet C100 – Overall Demolition and TESC Plan).
TABLE 1A – PROJECT AREA EXISTING SITE CONDITIONS
Land Cover Area (square feet)
Impervious Area – Parking Lot,
Driveway, Concrete Sidewalks
1,444
*Total Project Area 1,444
% Impervious of Project Area 100.0%
Storm water from the existing athletic field on the east side of campus, excluding the in-field areas which are not
under drained, is drained into the field drainage layer consisting of sod, root zone mix, and sand and is then
collected into underdrain pipes and conveyed south through a series of structures and pipes until it connects to the
existing storm system on the south side of NE 8th Street.
Table 1B below summarizes the land cover characteristics of the of the existing current Site Area ‘B’ (See Civil
Sheet C100 – Overall Demolition and TESC Plan).
TABLE 1B – PROJECT SITE AREA ‘B’ EXISTING SITE COND ITIONS
Land Cover Area (square feet)
Impervious Area – Field with Perforated
Underdrains
208,580
Pervious Area – Infield with No
Perforated Underdrains
47,528
*Total Project Area 256,108
% Impervious of Project Area 100.0%
PROPOSED DRAINAGE SYSTEM
The storm water runoff for the disturbed areas on both the west and southeast parking lots and athletic field will
continue to drain uninterrupted in its natural current drainage course and conveyed off-site as described above in
Existing Conditions Section.
The project is not proposing any further storm drainage mitigation efforts as the project will install less than 2,000
square feet (sf) of new plus replaced impervious surface (see Table 2 below) and is therefore exempt from the
drainage review requirements set forth in the 2022 City of Renton SWDM Section 1.1.1. – see Figure 3 Project
Minimum Requirements Flow Chart, which is taken directly from Figure 1.1.2.A page 1-14 and Section 1.1.1 page
1-12 of the SWDM.
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Table 2 summarizes the land cover characteristics of the proposed project disturbed area (See Figure 2 – New +
Replaced Impervious Areas).
TABLE 2 – DEVELOPED PROJECT SITE CONDITIONS AREA BR EAKDOWN
Land Cover Area
(square
feet)
Impervious Area – Replaced Concrete Sidewalks 733
Impervious Area – Replaced Asphalt (Maintenance) *711
Total Impervious Area *733
Total Project (Disturbed) Area *733
% Impervious of Project Area 50.9%
*Note: Parking lot cracking/replacement scope is excluded from Area Breakdowns (Site Area ‘A’). Existing Athletic
Field with Underdrains (208,580 sf) is excluded from the area breakdowns as the field will only have existing sod
removed and replaced (Site Area ‘B’). See Figure 2 – New + Replaced Impervious Areas.
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2. CONDITIONS AND REQUIREMENTS SUMMARY
The proposed Honey Dew Elementary School – Safety Upgrades project will result in more than 7,000 square feet
of land disturbing activity with the parking lot improvements and field reconditioning efforts and will require Full
Drainage Review by the City of Renton as directed in Section 1.1.1 of the 2022 Renton Surface Water Design
Manual (RSWDM). See Figure 3 – Project Minimum Requirements Flow Chart for how the level of drainage review
was determined for this project.
This section of the report will address the (9) nine required minimum requirements and (6) six special
requirements for Full Drainage Review as set forth by Section 1.1.2.4 of the 2022 RSWDM.
CORE REQUIREMENT #1: DISCHARGE AT THE NATURAL LOCATION
All storm water runoff and surface water from a project must be discharged at the natural location so as not to be
diverted onto or away from downstream properties. The manner in which stormwater runoff and surface water are
discharged from the project site must not create a significant adverse impact to downhill properties or drainage
facilities (see "Discharge Requirements" below). Drainage facilities as described above means a constructed or
engineered feature that collects, conveys, stores, treats, or otherwise manages surface water or stormwater runoff.
“Drainage facility” includes, but is not limited to, a constructed or engineered stream, lake, wetland, or closed
depression, or a pipe, channel, ditch, gutter, flow control facility, flow control BMP, water quality facility, erosion
and sediment control facility, and any other structure and appurtenance that provides for drainage. Note: Projects
that do not discharge all project site runoff at the natural location will require an approved adjustment of this
requirement (see Section 1.4). CED may waive this adjustment, however, for projects in which only a small portion
of the project site does not discharge runoff at the natural location and the runoff from that portion is
unconcentrated and poses no significant adverse impact to downstream properties.
Runoff from the site currently sheet flows across the site and is collected in a series of drainage structures (trench
drains and catch basin for parking lot in Site Area ‘A’ and a perforated field underdrain system for the athletic field
in Site Area ‘B’ according to the survey and record drawings for the school campus. The proposed development
will not alter existing drainage patterns, and runoff from the site will continue to drain as it currently does today,
with either sheet flow or infiltration into the surrounding soils (field underdrain system).
CORE REQUIREMENT #2: OFFSITE ANALYSIS
All proposed projects must submit an offsite analysis report that assesses potential offsite drainage and water
quality impacts associated with development of the project site, and that proposes appropriate mitigation of those
impacts. The initial permit submittal shall include, at minimum, a Level 1 downstream analysis as described in
Section 1.2.2.1 of the RSWDM. If impacts are identified, the proposed projects shall meet any applicable
problem-specific requirements specified in Section 1.2.2.2 for mitigation of impacts to drainage problems and
Section 1.2.2.3 for mitigation of impacts to water quality problems.
We believe the project is exempt from performing an in-depth Offsite Level 1 Downstream Analysis as the project
adds less than 2,000 square feet of new impervious surface AND less than 3/4 acres of new pervious surface,
AND does not construct or modify a drainage pipe/ditch that is 12 inches or more in size/depth or that receives
runoff from a drainage pipe/ditch that is 12 inches or more in size/depth, AND does not contain or lie adjacent to a
landslide, steep slope, or erosion hazard area as defined in RMC 4-3-050. Additionally, there are no known
Drainage Complaints downstream or adjacent to project property that are related to the Honey Dew Elementary
School campus according to King County iMap.
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CORE REQUIREMENT #3: FLOW CONTROL FACILITIES
All proposed projects, including redevelopment projects, must provide onsite flow control facilities to
mitigate the impacts of storm and surface water runoff generated by new impervious surface, new
pervious surface, and replaced impervious surface targeted for flow mitigation as specified in the
following sections. Flow control facilities must be provided and designed to perform as specified by the
area-specific flow control facility requirement in Section 1.2.3.1 of the RSWDM and in accordance with the
applicable flow control facility implementation requirements in Section 1.2.3.2.
We believe the project is exempt from providing on-site flow control facilities as the project will create less than
5,000 square feet of new plus replaced impervious surface AND less than 3/4 acres of new pervious surface will
be added.
CORE REQUIREMENT #4: CONVEYANCE SYSTEM
All engineered conveyance system elements for proposed projects must be analyzed, designed, and constructed to
provide a minimum level of protection against overtopping, flooding, erosion, and structural failure as specified in
the following groups of requirements:
· "Conveyance Requirements for New Systems," Section 1.2.4.1
· "Conveyance Requirements for Existing Systems," Section 1.2.4.2
· "Conveyance System Implementation Requirements," Section 1.2.4.3
Not applicable as no new conveyance piping or systems will be installed as part of this project; any existing
conveyance piping or systems currently installed on-site will be protected and maintained during construction.
CORE REQUIREMENT #5: CONSTRUCTION STORMWATER POLLUTION PREVENTION
All proposed projects that will clear, grade, or otherwise disturb the site must provide erosion and sediment
controls to prevent, to the maximum extent practicable, the transport of sediment from the project site to
downstream drainage facilities, water resources, and adjacent properties. All proposed projects that will conduct
construction activities onsite or offsite must provide stormwater pollution prevention and spill controls to prevent,
reduce, or eliminate the discharge of pollutants to onsite or adjacent stormwater systems or watercourses. To
prevent sediment transport and pollutant discharges as well as other impacts related to land-disturbing and
construction activities, Erosion and Sediment Control (ESC) measures and Stormwater Pollution Prevention and
Spill Control (SWPPS) measures that are appropriate to the project site must be applied through a comprehensive
Construction Stormwater Pollution Prevention (CSWPP) plan as described in Sections 1.2.5.1 and 1.2.5.3 and
shall perform as described in Section 1.2.5.2. In addition, these measures, both temporary and permanent, shall
be implemented consistent with the requirements in Section 1.2.5.3 that apply to the proposed project.
In order to prevent erosion and trap sediments within the project site, the following BMPs will be implemented
approximately as indicated and noted on Sheets C100, C101, C102, and C110, and will include, but are not
limited to the following:
· Clearing limits will be marked by fencing or other means on the ground.
· Cleared areas will be seeded and mulched.
· Runoff will not be allowed to concentrate, and no water will be allowed to point discharge off the site.
· Interceptor ditches will be installed to collect construction runoff and direct it towards the sediment trap.
· Straw wattles will be placed along slope contours at the downslope limit of clearing or at the edge of each
construction work area.
· Mulch will be spread over all cleared areas of the site when they are not being worked. Mulch will consist
of air-dried straw and chipped site vegetation.
· Filter Fabric protection will be installed in existing storm drainage structures and remain until the site is
stabilized.
· Tree protection fencing will be placed around existing trees to be protected that are adjacent or close to
work limits.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
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CORE REQUIREMENT #6: MAINTENANCE AND OPERATIONS
Maintenance and operation of all drainage facilities is the responsibility of the applicant or property owner, except
those facilities for which the City assumes maintenance and operation as described below and in RMC 4-6-030.M.
Drainage facilities must be maintained and operated in accordance with the maintenance standards in Appendix A
of this manual, or other maintenance standards as approved by the City.
Not applicable as no new conveyance piping or systems will be installed as part of this project; any existing
conveyance piping or systems currently installed on-site will be protected and maintained during construction.
CORE REQUIREMENT #7: FINANCIAL GUARANTEES AND LIABIITY
In accordance with RMC 4-6-030, CED shall require all persons constructing any surface water facilities (including
flow control/water quality facilities, conveyance systems, erosion control, and road drainage), to post with the City
of Renton a bond, assignment of funds or certified check.
The applicant must also maintain liability insurance as described in this Core Requirement #7.
The owner of the proposed project, Renton School District (RSD), is a public agency and is not subject to bonding
requirements.
CORE REQUIREMENT #8: WATER QUALITY FACILITIES
All proposed projects, including redevelopment projects, must provide water quality (WQ) facilities to
treat the runoff from those new and replaced pollution-generating impervious surfaces and new
pollution-generating pervious surfaces targeted for treatment as specified in the following sections.
These facilities shall be selected from a menu of water quality facility options specified by the area-specific
facility requirements in Section 1.2.8.1 and implemented according to the applicable WQ
implementation requirements in Section 1.2.8.2.
No water quality facilities are proposed to be installed for this project, as the surface area for new plus replaced
pollution generating impervious surfaces (PGIS) will be below the threshold of 5,000 square feet. The project will
also create less than 3/4 acre of new pollution generating pervious surface area (PGPS). See Figure 2 – New +
Replaced Impervious Areas.
CORE REQUIREMENT #9: ON-SITE BMPS
All proposed projects, including redevelopment projects, must provide on-site flow control BMPs to
mitigate the impacts of storm and surface water runoff generated by new impervious surface, new
pervious surface, existing impervious surfaces, and replaced impervious surface targeted for mitigation
as specified in the following sections. On-site BMPs must be selected and applied according to the
basic requirements, procedures, and provisions detailed in this section and the design specifications for
each BMP in Appendix C, Section C.2.
The project will disturb more than 7,000 square feet of land but will create less than 2,000 square feet of new plus
replaced impervious surface area, and is allowed by code, to utilize basic dispersion of stormwater runoff on the
site. The athletic field work will disturb the largest area on-site as part of the field reconditioning efforts and will
continue to maintain sheet flow dispersion of the stormwater across the field, that is sloped at 1% or less, from
west to east, and is underdrained. As the stormwater will sheet flow across field, it will also percolate into the
ground until the stormwater is collected in perforated storm pipes and conveyed off-site to the existing storm
drainage system.
The athletic field is not installing NEW pervious surface area as most of the existing field section, including base,
sub-grade and existing underdrain storm pipes are not being disturbed as described in Section I of this report.
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SPECIAL REQUIREMENT #1: OTHER ADOPTED AREA-SPECIFIC REQUIREMENTS
The RSWDM is one of several adopted regulations in in the City of Renton that apply requirements for controlling
drainage on an area-specific basis. Other adopted area-specific regulations with requirements that have a
direct bearing on the drainage design of a proposed project are found in Section 1.3.1 of the RSWDM.
To the best of our knowledge, there are no adopted area-specific requirements in the area of the proposed project
site development that would impact the current Renton Surface Water Design Manual (RSWDM) requirements for
this project. Therefore, the project will adhere to the requirements set forth in the 2022 RSWDM.
SPECIAL REQUIREMENT #2: FLOOD HAZARD AREA DELINEATION
Flood hazard areas are composed of the 100-year floodplain, zero-rise flood fringe, zero-rise floodway, FEMA
floodway. If a proposed project contains or is adjacent to a flood hazard area as determined by CED, this special
requirement requires the project to determine those components that are applicable and delineate them on the
project’s site improvement plans and recorded maps.
To the best of our knowledge in reviewing both only FEMA Flood Insurance Rate Maps and the King County
iMap, the proposed project site area in not located within a 100-year floodplain.
SPECIAL REQUIREMENT #3: FLOOD PROTECTION FACILITIES
Flood protection facilities, such as levees and revetments, require a high level of confidence in their structural
integrity and performance. Proper analysis, design, and construction is necessary to protect against the potentially
catastrophic consequences if such facilities should fail.
To the best of our knowledge in reviewing both FEMA Flood Insurance Rate Maps and the King County iMap, the
proposed project site area is not located within a 100-year floodplain and not located adjacent to any rivers,
streams, creeks, or other water bodies, and does not have any existing flood protection facilities installed on the
existing property, nor are any new flood protection facilities proposed to be installed or warranted for this project.
SPECIAL REQUIREMENT #4: SOURCE CONTROLS
If a proposed project requires a commercial building or commercial site development permit then water quality
source controls applicable to the proposed project shall be applied as described below in accordance with the King
County Stormwater Pollution Prevention Manual and King County Code 9.12.
No structural improvements are proposed that will require source controls.
SPECIAL REQUIREMENT #5: OIL CONTROL
Projects proposing to develop or redevelop a high-use site must provide oil controls in addition to any other water
quality controls required by this manual. Such sites typically generate high concentrations of oil due to high traffic
turnover, on-site vehicle or heavy or stationary equipment use, some business operations, e.g., automotive
recycling, or the frequent transfer of liquid petroleum or coal derivative products.
The subject project is not considered a high-use site and therefore will not require oil controls to be installed.
SPECIAL REQUIREMENT #6: AQUIFER PROTECTION AREA
Aquifer Protection Area(s) (APA) are identified in the RMC 4-3-050. If a proposed project is located within the
APA, this special requirement requires the project to determine those components that are applicable and
delineate them on the project’s site improvements plans. APA zones are depicted in the Wellhead Protection Area
Zones layer of COR Maps (<https://maps.rentonwa.gov/Html5viewer/Index.html?viewer=cormaps>).
The subject project is not located in an aquifer protection area according to the online City of Renton COR Maps.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
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3. OFFSITE ANALYSIS
FIELD INSPECTION
A Site visit has been made to gather information about the existing campus, including, but not limited to, review of
parking lots on west and south sides of site, field, accessible paths, and security fencing around perimeter and
school building. This field visit took place February 3, 2022. Please refer to Downstream Analysis below for more
information.
DRAINAGE SYSTEM PROBLEM DESCRIPTIONS
There are no known drainage concerns or any existing drainage problems per review of the site with the Renton
School District and the King County iMap and City of Renton COR Maps ‘Drainage Complaints’ Layer. As such, no
drainage problems are anticipated to be present in the redevelopment as a result of any previous existing problems.
UPSTREAM ANALYSIS
The project is adjacent to an existing wetland located near the NE corner of the site located on the property to the
north (Parcel #102305TR-A). A stormwater pond on the Renton Church of Nazarene property (Parcel
#1023059078) located upstream and west of the wetland (unclassified on King County or Renton GIS sites) that
drains to the wetland, then from the wetland, stormwater appears to outfall to an 18-inch CPP storm conveyance
pipe that drains south through roughly the center of the field to the public storm drain system in NE 8th Street. The
proposed revisions to the field to replace the sod and sand base, to the best of our knowledge, does not appear to
impact the adjacent wetland or 18-inch storm conveyance pipe. See Figure 4 – Offsite Drainage.
DOWNSTREAM ANALYSIS
According to both the project’s record of survey and the City of Renton COR Maps website, stormwater from the
field on the east side of the campus, drains into the 18-inch public storm main in NE 8th Street, where the
stormwater is conveyed through a serious of 18-inch and 24-inch storm pipes, until the stormwater outfalls to a
private stormwater facility located approximately 700-ft south-southwest. From the parking lots, classroom
building, and covered play structure located on the western portion of the school’s campus, stormwater is collected
in a series of catch basins, trench drains, and ditches, that is conveyed to an existing 12-inch public storm main in
NE 8th Street. From the NE 8th Street, stormwater is conveyed through a series of 12-inch and 15-inch storm drain
pipes until out-falling the same private stormwater facility that the field drains located downstream roughly 700-ft
south of the school. See Figure 4 – Offsite Drainage.
MITIGATION OF EXISTING OR POTENTIAL PROBLEMS
The site is not within or near any FEMA flood zones, no existing problems are known, and no potential problems are
expected as a result of the proposed development.
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4. FLOW CONTROL, LOW IMPACT DEVELOPMENT (LID), AND WAT ER
QUALITY FACILITY ANALYSIS AND DESIGN
FLOW CONTROL SYSTEM
This project is not required to comply with Core Requirement #3 and also proposes less than 5,000 square-feet of
new plus replaced impervious surfaces and less than ¾ acre of new pervious surface, therefore flow control is not
proposed.
LOW IMPACT DEVELOPMENT (LID)
The project is not required to comply with Core Requirement #9 and also proposes less than 2,000 square-feet of
new plus replaced impervious surfaces and less than 7,000 square-feet of land disturbing activity, therefore flow
control BMPs are not proposed.
WATER QUALITY SYSTEM
The project is not required to comply with Core Requirement #8 and also proposes less than 5,000 square-feet of
new plus replaced pollution generating impervious surfaces and less than ¾ acre of new pollution generating
pervious surfaces, therefore water quality treatment is not proposed.
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5. CONVEYANCE SYSTEM ANALYSIS AND DESIGN
This section is Not Applicable as the project is not proposing installing any new storm drainage facilities and is not
modifying any existing drainage systems. discusses the criteria that will be used to analyze and design the
proposed storm conveyance system.
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6. SPECIAL REPORTS AND SUMMARY
No additional reports are included.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
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7. OTHER PERMITS
Building Permit #B22003956
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8. CSWPP ANALYSIS AND DESIGN
This section lists the requirements that were met when designing the TESC Plan for this site.
STANDARD REQUIREMENTS
Erosion/Sedimentation Plan shall include the following:
1. Clearing Limits – Construction limits are delineated or noted on the project erosion control plans and
shall be physically laid out on the project site.
2. Cover Measures – Contractor will use plastic sheeting, hydroseeding, and mulching to protect soils
from erosion. Gravel borrow or “hog fuel” may be used in areas of excessively moist soils that will support
building or traffic loads, if necessary.
3. Perimeter Protection – Temporary construction fencing will be used to delineate and protect the
project clearing limits and provide a secure site. Straw wattles will be used to prevent
sediment-laden water from discharging from the site.
4. Traffic Area Stabilization – The existing drive aisles and parking lot will be utilized for construction
access, staging, and laydown as needed. Additional gravel borrow or “hog fuel” may be used in areas of
excessively moist soils that will support traffic loads, if necessary.
5. Sediment Retention – Filter fabric protect will also be installed in all new area drain structures and
remain until the site is stabilized.
6. Surface Water Collection – Interceptor swales will be used in the appropriate areas of the site to
collect stormwater runoff, if necessary.
7. Dewatering Control – Dewatering is not necessary for this site; therefore, no dewatering control
measures are implemented.
8. Dust Control – Dry soils will be appropriately sprinkled with water to limit airborne dust during dry
weather.
9. Flow Control – Discharge will be restricted and will therefore serve as a flow control measure.
10. Control Pollutants – BMPs shall be implemented to prevent or treat contamination of stormwater runoff
by pH modifying sources. Carbon dioxide sparging, using dry ice or a gas diffuser as a source of CO2 will
be used as needed to adjust the pH level and prevent discharge of water with elevated pH levels to the
City’s Storm System. In addition, dust control will be implemented as needed to prevent fugitive dust
during the treatment process. In addition, all waste materials from the site will be removed in a manner
that does not cause contamination of stormwater.
11. Protect Existing and Proposed Flow Control BMPs – The native vegetation will be protected with silt
fencing and perimeter construction fencing.
12. Maintain BMPs – BMPs for the project will be monitored for effectiveness on a regular basis to
ensure they are repaired and replaced as necessary.
13. Manage the Project – The project will be phased to take weather and seasonal work limits into
account. The BMPs will be inspected, maintained, and repaired as needed to ensure their intended
performance.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
16
9. BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATIO N OF
COVENANT
BOND QUANTITIES WORKSHEET
A bond quantities worksheet has been completed and included in Appendix A.
FLOW CONROL AND WATER QUALITY FACILITY SUMMARY SHEET AND SKETCH
No flow control or water quality facilities are proposed with this project.
DECLARATION OF COVENANT FOR PRIVATELY MAINTAINED FLOW CONTROL AND WQ
FACILITIES
No flow control or water quality facilities are proposed with this project.
DECLARATION OF COVENANT FOR PRIVATELY MAINTAINED FLOW CONTROL BMP’S
No flow control or water quality BMPs are proposed with this project.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
17
10. OPERATIONS AND MAINTENANCE MANUAL
As stated in the King County Surface Water Design Manual (KCSWDM), the owner will maintain facilities. Sections
of the KCWSDM outlining the operations and maintenance of these facilities have been included in this section.
CITY OF RENTON SURFACE WATER DESIGN MANUAL
2022 City of Renton Surface Water Design Manual 6/22/2022
A-1
APPENDIX A
MAINTENANCE REQUIREMENTS FOR
STORMWATER FACILITIES AND ON-SITE
BMPS
This appendix contains the maintenance requirements for the following typical stormwater flow control
and water quality facilities and on-site BMPs (ctrl/click the title to follow the link):
No. 1 – Detention Ponds
No. 2 – Infiltration Facilities
No. 3 – Detention Tanks and Vaults
No. 4 – Control Structure/Flow Restrictor
No. 5 – Catch Basins and Manholes
No. 6 – Conveyance Pipes and Ditches
No. 7 – Debris Barriers (e.g., trash racks)
No. 8 – Energy Dissipaters
No. 9 – Fencing
No. 10 – Gates/Bollards/Access Barriers
No. 11 – Grounds (landscaping)
No. 12 – Access Roads
No. 13 – Basic Bioswale (grass)
No. 14 – Wet Bioswale
No. 15 – Filter Strip
No. 16 – Wetpond
No. 17 – Wetvault
No. 18 – Stormwater Wetland
No. 19 – Sand Filter Pond
No. 20 – Sand Filter Vault
No. 21 – Proprietary Facility Cartridge Filter Systems
No. 22 – Baffle Oil/Water Separator
No. 23 – Coalescing Plate Oil/Water Separator
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
6/22/2022 2022 City of Renton Surface Water Design Manual
A-2
No. 24 – Catch Basin Insert (not allowed in the city for oil control)
No. 25 – Drywell BMP
No. 26 – Gravel Filled Infiltration Trench BMP
No. 27 – Gravel Filled Dispersion Trench BMP
No. 28 – Native Vegetated Surface/Native Vegetated Landscape BMP
No. 29 – Perforated Pipe Connections BMP
No. 30 – Permeable Pavement BMP
No. 31 – Bioretention BMP
No. 32 – RainWater Harvesting BMP
No. 33 – Rock Pad BMP
No. 34 – Sheet Flow BMP
No. 35 – Splash Block BMP
No. 36 – Vegetated Roof BMP
No. 37 – Rain Garden BMP
No. 38 – Soil Amendment BMP
No. 39 – Retained Trees
No. 40 – Filterra System
No. 41 – Compost Amended Vegetated Filter Strip (CAVFS)
No. 42 – Media Filter Drain (MFD)
No. 43 – Compost-Amended Biofiltration Swale
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
6/22/2022 2022 City of Renton Surface Water Design Manual
A-10
NO. 5 – CATCH BASINS AND MANHOLES
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITION WHEN MAINTENANCE
IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Structure Sediment
accumulation
Sediment exceeds 60% of the depth from
the bottom of the catch basin to the invert
of the lowest pipe into or out of the catch
basin or is within 6 inches of the invert of
the lowest pipe into or out of the catch
basin.
Sump of catch basin contains no sediment.
Trash and debris Trash or debris of more than ½ cubic foot
which is located immediately in front of the
catch basin opening or is blocking capacity
of the catch basin by more than 10%.
No Trash or debris blocking or potentially
blocking entrance to catch basin.
Trash or debris in the catch basin that
exceeds 1/3 the depth from the bottom of
basin to invert the lowest pipe into or out of
the basin.
No trash or debris in the catch basin.
Dead animals or vegetation that could
generate odors that could cause
complaints or dangerous gases (e.g.,
methane).
No dead animals or vegetation present
within catch basin.
Deposits of garbage exceeding 1 cubic
foot in volume.
No condition present which would attract or
support the breeding of insects or rodents.
Damage to frame
and/or top slab
Corner of frame extends more than ¾ inch
past curb face into the street (If
applicable).
Frame is even with curb.
Top slab has holes larger than 2 square
inches or cracks wider than ¼ inch.
Top slab is free of holes and cracks.
Frame not sitting flush on top slab, i.e.,
separation of more than ¾ inch of the
frame from the top slab.
Frame is sitting flush on top slab.
Cracks in walls or
bottom
Cracks wider than ½ inch and longer than
3 feet, any evidence of soil particles
entering catch basin through cracks, or
maintenance person judges that catch
basin is unsound.
Catch basin is sealed and is structurally
sound.
Cracks wider than ½ inch and longer than
1 foot at the joint of any inlet/outlet pipe or
any evidence of soil particles entering
catch basin through cracks.
No cracks more than 1/4 inch wide at the
joint of inlet/outlet pipe.
Settlement/
misalignment
Catch basin has settled more than 1 inch
or has rotated more than 2 inches out of
alignment.
Basin replaced or repaired to design
standards.
Damaged pipe joints Cracks wider than ½-inch at the joint of the
inlet/outlet pipes or any evidence of soil
entering the catch basin at the joint of the
inlet/outlet pipes.
No cracks more than ¼-inch wide at the
joint of inlet/outlet pipes.
Contaminants and
pollution
Any evidence of contaminants or pollution
such as oil, gasoline, concrete slurries or
paint.
Materials removed and disposed of
according to applicable regulations. Source
control BMPs implemented if appropriate.
No contaminants present other than a
surface oil film.
Inlet/Outlet Pipe Sediment
accumulation
Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment.
Trash and debris Trash and debris accumulated in
inlet/outlet pipes (includes floatables and
non-floatables).
No trash or debris in pipes.
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
2022 City of Renton Surface Water Design Manual 6/22/2022
A-11
NO. 5 – CATCH BASINS AND MANHOLES
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITION WHEN MAINTENANCE
IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Inlet/Outlet Pipe
(cont.)
Damaged inlet/outlet
pipe
Cracks wider than ½-inch at the joint of the
inlet/outlet pipes or any evidence of soil
entering at the joints of the inlet/outlet
pipes.
No cracks more than ¼-inch wide at the
joint of the inlet/outlet pipe.
Metal Grates
(Catch Basins)
Unsafe grate opening Grate with opening wider than 7/8 inch. Grate opening meets design standards.
Trash and debris Trash and debris that is blocking more
than 20% of grate surface.
Grate free of trash and debris.
Damaged or missing
grate
Grate missing or broken member(s) of the
grate. Any open structure requires
urgent maintenance.
Grate is in place and meets design
standards.
Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in
place. Any open structure requires
urgent maintenance.
Cover/lid protects opening to structure.
Locking mechanism
not working
Mechanism cannot be opened by one
maintenance person with proper tools.
Bolts cannot be seated. Self-locking
cover/lid does not work.
Mechanism opens with proper tools.
Cover/lid difficult to
remove
One maintenance person cannot remove
cover/lid after applying 80 lbs. of lift.
Cover/lid can be removed and reinstalled
by one maintenance person.
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
2022 City of Renton Surface Water Design Manual 6/22/2022
A-15
NO. 9 – FENCING
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITIONS WHEN
MAINTENANCE IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Site Erosion or holes
under fence
Erosion or holes more than 4 inches high
and 12-18 inches wide permitting access
through an opening under a fence.
No access under the fence.
Wood Posts, Boards
and Cross Members
Missing or damaged
parts
Missing or broken boards, post out of
plumb by more than 6 inches or cross
members broken
No gaps on fence due to missing or broken
boards, post plumb to within 1½ inches,
cross members sound.
Weakened by rotting
or insects
Any part showing structural deterioration
due to rotting or insect damage
All parts of fence are structurally sound.
Damaged or failed
post foundation
Concrete or metal attachments
deteriorated or unable to support posts.
Post foundation capable of supporting
posts even in strong wind.
Metal Posts, Rails
and Fabric
Damaged parts Post out of plumb more than 6 inches. Post plumb to within 1½ inches.
Top rails bent more than 6 inches. Top rail free of bends greater than
1 inch.
Any part of fence (including post, top rails,
and fabric) more than 1 foot out of design
alignment.
Fence is aligned and meets design
standards.
Missing or loose tension wire. Tension wire in place and holding fabric.
Deteriorated paint or
protective coating
Part or parts that have a rusting or scaling
condition that has affected structural
adequacy.
Structurally adequate posts or parts with a
uniform protective coating.
Openings in fabric Openings in fabric are such that an 8-inch
diameter ball could fit through.
Fabric mesh openings within 50% of grid
size.
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
6/22/2022 2022 City of Renton Surface Water Design Manual
A-16
NO. 10 – GATES/BOLLARDS/ACCESS BARRIERS
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITIONS WHEN
MAINTENANCE IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Chain Link Fencing
Gate
Damaged or missing
members
Missing gate. Gates in place.
Broken or missing hinges such that gate
cannot be easily opened and closed by a
maintenance person.
Hinges intact and lubed. Gate is working
freely.
Gate is out of plumb more than 6 inches
and more than 1 foot out of design
alignment.
Gate is aligned and vertical.
Missing stretcher bar, stretcher bands, and
ties.
Stretcher bar, bands, and ties in place.
Locking mechanism
does not lock gate
Locking device missing, non-functioning or
does not link to all parts.
Locking mechanism prevents opening of
gate.
Openings in fabric Openings in fabric are such that an 8-inch
diameter ball could fit through.
Fabric mesh openings within 50% of grid
size.
Bar Gate Damaged or missing
cross bar
Cross bar does not swing open or closed,
is missing or is bent to where it does not
prevent vehicle access.
Cross bar swings fully open and closed
and prevents vehicle access.
Locking mechanism
does not lock gate
Locking device missing, non-functioning or
does not link to all parts.
Locking mechanism prevents opening of
gate.
Support post
damaged
Support post does not hold cross bar up. Cross bar held up preventing vehicle
access into facility.
Bollards Damaged or missing
bollards
Bollard broken, missing, does not fit into
support hole or hinge broken or missing.
No access for motorized vehicles to get
into facility.
Bollards do not lock Locking assembly or lock missing or
cannot be attached to lock bollard in place.
No access for motorized vehicles to get
into facility.
Boulders Dislodged boulders Boulders not located to prevent motorized
vehicle access.
No access for motorized vehicles to get
into facility.
Evidence of vehicles
circumventing
boulders
Motorized vehicles going around or
between boulders.
No access for motorized vehicles to get
into facility.
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
2022 City of Renton Surface Water Design Manual 6/22/2022
A-17
NO. 11 – GROUNDS (LANDSCAPING)
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITIONS WHEN
MAINTENANCE IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Site Trash and debris Any trash and debris which exceed 1 cubic
foot per 1,000 square feet (this is about
equal to the amount of trash it would take
to fill up one standard size office garbage
can). In general, there should be no visual
evidence of dumping.
Trash and debris cleared from site.
Noxious weeds Any noxious or nuisance vegetation which
may constitute a hazard to City personnel
or the public.
Noxious and nuisance vegetation removed
according to applicable regulations. No
danger of noxious vegetation where City
personnel or the public might normally be.
Contaminants and
pollution
Any evidence of contaminants or pollution
such as oil, gasoline, concrete slurries or
paint.
Materials removed and disposed of
according to applicable regulations. Source
control BMPs implemented if appropriate.
No contaminants present other than a
surface oil film.
Excessive growth of
grass/groundcover
Grass or groundcover exceeds 18 inches
in height.
Grass or groundcover mowed to a height
no greater than 6 inches.
Trees and Shrubs Hazard tree identified Any tree or limb of a tree identified as
having a potential to fall and cause
property damage or threaten human life. A
hazard tree identified by a qualified
arborist must be removed as soon as
possible.
No hazard trees in facility.
Damaged tree or
shrub identified
Limbs or parts of trees or shrubs that are
split or broken which affect more than 25%
of the total foliage of the tree or shrub.
Trees and shrubs with less than 5% of total
foliage with split or broken limbs.
Trees or shrubs that have been blown
down or knocked over.
No blown down vegetation or knocked over
vegetation. Trees or shrubs free of injury.
Trees or shrubs which are not adequately
supported or are leaning over, causing
exposure of the roots.
Tree or shrub in place and adequately
supported; dead or diseased trees
removed.
APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS
2022 City of Renton Surface Water Design Manual 6/22/2022
A-47
NO. 38 – SOIL AMENDMENT BMP
MAINTENANCE
COMPONENT
DEFECT OR
PROBLEM
CONDITIONS WHEN
MAINTENANCE IS NEEDED
RESULTS EXPECTED WHEN
MAINTENANCE IS PERFORMED
Soil Media Unhealthy vegetation Vegetation not fully covering ground
surface or vegetation health is poor.
Yellowing: possible Nitrogen (N)
deficiency. Poor growth: possible
Phosphorous (P) deficiency. Poor
flowering, spotting or curled leaves, or
weak roots or stems: possible Potassium
(K) deficiency.
Plants are healthy and appropriate for site
conditions
Inadequate soil
nutrients and
structure
In the fall, return leaf fall and shredded
woody materials from the landscape to the
site when possible
Soil providing plant nutrients and structure
Excessive vegetation
growth
Grass becomes excessively tall (greater
than 10 inches); nuisance weeds and other
vegetation start to take over.
Healthy turf- “grasscycle” (mulch-mow or
leave the clippings) to build turf health
Weeds Preventive maintenance Avoid use of pesticides (bug and weed
killers), like “weed & feed,” which damage
the soil
Fertilizer needed Where fertilization is needed (mainly turf
and annual flower beds), a moderate
fertilization program should be used which
relies on compost, natural fertilizers or
slow-release synthetic balanced fertilizers
Integrated Pest Management (IPM)
protocols for fertilization followed
Bare spots Bare spots on soil No bare spots, area covered with
vegetation or mulch mixed into the
underlying soil.
Compaction Poor infiltration due to soil compaction
To remediate compaction, aerate
soil, till to at least 8-inch depth, or
further amend soil with compost and
re-till
If areas are turf, aerate compacted
areas and top dress them with 1/4 to
1/2 inch of compost to renovate them
If drainage is still slow, consider
investigating alternative causes (e.g.,
high wet season groundwater levels,
low permeability soils)
Also consider site use and protection
from compacting activities
No soil compaction
Poor infiltration Soils become waterlogged, do not appear
to be infiltrating.
Facility infiltrating properly
Erosion/Scouring Erosion Areas of potential erosion are visible Causes of erosion (e.g., concentrate flow
entering area, channelization of runoff)
identified and damaged area stabilized
(regrade, rock, vegetation, erosion control
matting).For deep channels or cuts (over 3
inches in ponding depth), temporary
erosion control measures in place until
permanent repairs can be made
Grass/Vegetation Unhealthy vegetation Less than 75% of planted vegetation is
healthy with a generally good appearance.
Healthy vegetation. Unhealthy plants
removed/replaced. Appropriate vegetation
planted in terms of exposure, soil and soil
moisture.
Noxious Weeds Noxious weeds Listed noxious vegetation is present (refer
to current County noxious weed list).
No noxious weeds present.
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
18
11. FIGURES
FIGURE 1 – VICINITY MAP
FIGURE 2 – NEW + REPLACED IMPERVIOUS AREAS
FIGURE 3 – PROJECT MINIMUM REQUIREMENTS FLOW CHART
FIGURE 4 – OFFSITE DRAINAGE
255 S. King Street, Suite 800, Seattle, WA 98104 | 206.399.6233 | JACOBSONENGINEERS.COM
FIGURE 1: VICINITY MAP
SCALE: NTS
206.426.2600
Project Site
Project Sites
FIGURE 2: NEW + REPLACED IMPERVIOUS AREASNOTE:SHEET HAS BEENPRINTED TO BE 11X17AND NOT TO SCALE
FIGURE 2: NEW + REPLACED IMPERVIOUS AREAS(CONTINUED)NOTE:SHEET HAS BEENPRINTED TO BE 11X17AND NOT TO SCALE
FIGURE 2: NEW + REPLACED IMPERVIOUS AREAS(CONTINUED)NOTE:SHEET HAS BEENPRINTED TO BE 11X17AND NOT TO SCALE
SECTION 1.1 DRAINAGE REVIEW
6/22/2022 2022 City of Renton Surface Water Design Manual
1-14
FIGURE 1.1.2.A FLOW CHART FOR DETERMINING TYPE OF DRAINAGE REVIEW REQUIRED
FIGURE 3: PROJECT MINIMUM REQUIREMENT FLOW CHART
SECTION 1.1 DRAINAGE REVIEW
6/22/2022 2022 City of Renton Surface Water Design Manual
1-12
1.1.1 PROJECTS REQUIRING DRAINAGE REVIEW
Drainage review is required for any proposed project (except those proposing only maintenance)
that is subject to a City of Renton development permit or approval, including but not limited to
those listed at right, AND that meets any one of the following conditions:
1. The project adds or will result in 2,000 square feet5 or
more of new impervious surface, replaced impervious
surface, or new plus replaced impervious surface, OR
2. The project proposes 7,000 square feet5 or more of land
disturbing activity, OR
3. The project proposes to construct or modify a drainage
pipe/ditch that is 12 inches or more in size/depth, or
receives storm water runoff or surface water from a
drainage pipe/ditch that is 12 inches or more in
size/depth, OR
4. The project contains or is adjacent to a flood, erosion, or
steep slope hazard area as defined in RMC 4-3-050, or
projects located within a Landslide Hazard Drainage
Area or Aquifer Protection Area, OR
5. Condition #5 does not apply to the City,6 OR
6. The project is a redevelopment project proposing
$100,0007 or more of improvements to an existing high-
use site.
If drainage review is required for the proposed project, the
type of drainage review must be determined based on project
and site characteristics as described in Section 1.1.2. The type
of drainage review defines the scope of drainage requirements
that must be evaluated for compliance with this manual.
1.1.2 DRAINAGE REVIEW TYPES AND
REQUIREMENTS
For most projects resulting in 2,000 square feet or more of new plus replaced impervious surface, the full
range of core and special requirements contained in Sections 1.2 and 1.3 must be evaluated for compliance
through the drainage review process. However, for some types of projects, the scope of requirements
applied is narrowed to allow more efficient, customized review. Each of the following five drainage
review types tailors the review process and application of drainage requirements to a project’s size,
location, type of development, and anticipated impacts to the local and regional surface water system:
“Simplified Drainage Review,” Section 1.1.2.1
“Targeted Drainage Review,” Section 1.1.2.2
“Directed Drainage Review,” Section 1.1.2.3
“Full Drainage Review,” Section 1.1.2.4
“Large Project Drainage Review,” Section 1.1.2.5.
5 The thresholds for new impervious surface, replaced impervious surface, and land disturbing activity shall be applied by
project site and in accordance with the definitions of these surfaces and activities.
6 Footnote 6 is not used.
7 This is the “project valuation” as declared on the permit application submitted to CED. The dollar amount of this threshold may
be adjusted on an annual basis using the local consumer price index (CPI).
City of Renton Permits
and
Approvals
Building Permits/Combination
Building Permits
Construction Permits
Demolition Permits
Flood Control Zone Permits
Grading/Filling Permit
Land Use Permit
Mining, Excavation or Grading Permit
or License
Planned Urban Development
Rezones
Right-of-Way Permits
Right-of-Way Use Application
Site Plan Approvals
Shoreline Permits
Short Subdivision Developments
(Short Plat)
Special Permits
Subdivision Developments (Plats)
Temporary Permits when involving
land disturbance
Other City of Renton permits as
required
No (733 sf)
No
No
N/A
Not a high-use site
FIGURE 3: PROJECT MINIMUM REQUIREMENT FLOW CHART(CONTINUED)
Yes
255 S. King Street, Suite 800, Seattle, WA 98104 | 206.399.6233 | JACOBSONENGINEERS.COM
FIGURE 4: OFFSITE DRAINAGE
SCALE: NTS
206.426.2600
Project Sites
Stormwater Pond
Wetland
18"18"24"15"12"12"18"
Regional Stormwater
Facility
12"
HONEY DEW ELEMENTARY SCHOOL – SAFETY UPGRADES
19
12. APPENDICES
APPENDIX A – BOND QUANTITY WORKSHEET
Page 1 of 15
Ref 8-H Bond Quantity Worksheet INSTRUCTIONS
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
BOND QUANTITY WORKSHEET INSTRUCTIONS
1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200
This worksheet is intended to be a "working" copy of the bond quantity worksheet, which will be used throughout all phases of the project, from initial
submittal to project close-out approval.
Submit this workbook, in its entirety, as follows:
•(1) electronic copy (.xlsx format) and (1) hard copy of the entire workbook for civil construction permit submittal. Hard copies are to be included as part
of the Technical Information Report (TIR).
•(1) electronic copy (.xlsx format) and (1) hard copy of the entire workbook for final close-out submittal.
The following forms are to be completed by the engineer/developer/applicant as applicable to the project:
Section I: Project Information
•This section includes all pertinent information for the project
•This section must be completed in its entirety
•Information from this section auto-populates to all other relevant areas of the workbook
Section II: Bond Quantities Worksheets
•Section II contains a separate spreadsheet TAB for each of the following specialties:
•Section II.a EROSION CONTROL (Stabilization/Erosion Sediment Control (ESC))
•Section II.b TRANSPORTATION (Street and Site Improvements)
•Section II.c DRAINAGE (Drainage and Stormwater Facilities):
•Section II.d WATER - ONLY APPLICABLE IF WATER SERVICE IS PROVIDED BY CITY OF RENTON
•Section II.e SANITARY SEWER - ONLY APPLICABLE IF SEWER SERVICE IS PROVIDED BY CITY OF RENTON
•Complete the 'Quantity' columns for each of the appropriate section(s). Include existing Right-of-Way (ROW), Future Public Improvements and Private
Improvements.
•Note: Private improvements, with the exception of stormwater facilities, are not included in the bond amount calculation, but must be entered on the
form. Stormwater facilities (public and private) are required to be included in the bond amount.
•The 'Quantity Remaining' column is only to be used when a project is under construction. The City allows one (1) bond reduction during the life of the
project with the exception of the maintenance period reduction.
•Excel will auto-calculate and auto-populate the relevant fields and subtotals throughout the document. Only the 'Quantity' columns should need
completing.
•Additional items not included in the lists can be added under the "write-in" sections. Provide a complete description, cost estimate and unit of measure
for each write-in item.
•All unit prices include labor, equipment, materials, overhead, profit, and taxes.
The Bond Worksheet form will auto-calculate and auto-populate from the information provided in Section I and Section II.
Section III. Bond Worksheet
•This section calculates the required Permit Bond for construction permit issuance as well as the required Maintenance Bond for project close-out
submittals to release the permit bond on a project.
Page 2 of 15
Ref 8-H Bond Quantity Worksheet SECTION I PROJECT INFORMATION
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
PROJECT INFORMATION
1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200
Date Prepared: 11/8/2022 Project Phase 1 FOR APPROVAL
Prepared by:Engineer Stamp Required
(all cost estimates must have original wet stamp and signature)Name:Alan Jacobson
PE Registration No:43667
Firm Name:Jacobson Consulting Engineers
Firm Address:255 S King ST, Suite 800, Seattle, WA 98104
Phone No.(206) 426-2600
Email Address:alan@jacobsonengineers.com
Project Location and Description Project Owner Information
Project Name: Honey Dew ES - Saftey Upgrades Project Owner:Mike Cato c/o Rent School District
CED Plan # (LUA):##-######Phone:(206) 643-2887
CED Permit # (C):B22003956 Address: 7812 South 124th Street
Site Address:800 Union Ave, Renton, WA 98059 Seattle, WA 98178-4830
Street Intersection:Union Ave & NE 8th ST Addt'l Project Owner:Additional Project Owner
Parcel #(s):1023059007, 1023059121 Phone:Phone
Abbreviated Legal
Description:
S 1/2 OF S 1/2 OF SW 1/4 OF NW 1/4 LESS W 30 FT & S 30 FT FOR
RD DEED 2001016000504 LESS RD PER DEED 20081204000075
(Parcel 1023059007)
S 110 FT OF N 1/2 OF S 1/2 OF SW 1/4 OF NW 1/4 LESS CO RD
(Parcel 1023059121)
Address: Address
City, State, Zip
Clearing and Grading Utility Providers
Clearing and grading greater than or equal to 5,000 board feet of timber?
Yes/No:NO Water Service Provided by:CITY OF RENTON
If Yes, Provide Forest Practice Permit #:N/A Sewer Service Provided by: CITY OF RENTON
See Page 3 for PE Stamp & Signature.
Page 3 of 15
Ref 8-H Bond Quantity Worksheet SECTION I PROJECT INFORMATION
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
Estimated Civil Construction Permit - Construction Costs2
As outlined in City Ordinance No. 4345, 50% of the plan review and inspection fees are to be paid at Permit Submittal. The balance is due at Permit Issuance.
Significant changes or additional review cycles (beyond 3 cycles) during the review process may result in adjustments to the final review fees.
Water A $-
Wastewater (Sanitary Sewer)B $-
Stormwater (Drainage)C $1,101.00
Roadway (Erosion Control + Transportation)D $173,127.30
Total Estimated Construction Costs E
A + B + C + D $174,228.30
1 Select the current project status/phase from the following options:
For Approval - Preliminary Data Enclosed, pending approval from the City;
For Construction - Estimated Data Enclosed, Plans have been approved for contruction by the City;
Project Closeout - Final Costs and Quantities Enclosed for Project Close-out Submittal
2 All prices include labor, equipment, materials, overhead, profit, and taxes. City of Renton Sales Tax is:10.1%
Page 4 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.a EROSION_CONTROL
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR EROSION & SEDIMENT CONTROL
CED Permit #:B22003956
Description No.
Unit (A)
Reference #Price Unit Quantity Cost
Backfill & compaction-embankment ESC-1 $7.50 CY
Check dams, 4" minus rock ESC-2 SWDM 5.4.6.3 $90.00 Each
Catch Basin Protection ESC-3 $145.00 Each 12 1,740.00
Crushed surfacing 1 1/4" minus ESC-4 WSDOT 9-03.9(3)$110.00 CY
Ditching ESC-5 $10.50 CY
Excavation-bulk ESC-6 $2.30 CY
Fence, silt ESC-7 SWDM 5.4.3.1 $5.00 LF
Fence, Temporary (NGPE)ESC-8 $1.75 LF 240 420.00
Geotextile Fabric ESC-9 $3.00 SY
Hay Bale Silt Trap ESC-10 $0.60 Each
Hydroseeding ESC-11 SWDM 5.4.2.4 $0.90 SY
Interceptor Swale / Dike ESC-12 $1.15 LF
Jute Mesh ESC-13 SWDM 5.4.2.2 $4.00 SY
Level Spreader ESC-14 $2.00 LF
Mulch, by hand, straw, 3" deep ESC-15 SWDM 5.4.2.1 $2.90 SY
Mulch, by machine, straw, 2" deep ESC-16 SWDM 5.4.2.1 $2.30 SY
Piping, temporary, CPP, 6"ESC-17 $13.75 LF
Piping, temporary, CPP, 8"ESC-18 $16.00 LF
Piping, temporary, CPP, 12"ESC-19 $20.50 LF
Plastic covering, 6mm thick, sandbagged ESC-20 SWDM 5.4.2.3 $4.60 SY
Rip Rap, machine placed; slopes ESC-21 WSDOT 9-13.1(2)$51.00 CY
Rock Construction Entrance, 50'x15'x1'ESC-22 SWDM 5.4.4.1 $2,050.00 Each
Rock Construction Entrance, 100'x15'x1'ESC-23 SWDM 5.4.4.1 $3,675.00 Each
Sediment pond riser assembly ESC-24 SWDM 5.4.5.2 $2,525.00 Each
Sediment trap, 5' high berm ESC-25 SWDM 5.4.5.1 $22.00 LF
Sed. trap, 5' high, riprapped spillway berm section ESC-26 SWDM 5.4.5.1 $80.00 LF
Seeding, by hand ESC-27 SWDM 5.4.2.4 $1.15 SY
Sodding, 1" deep, level ground ESC-28 SWDM 5.4.2.5 $9.20 SY
Sodding, 1" deep, sloped ground ESC-29 SWDM 5.4.2.5 $11.50 SY
TESC Supervisor ESC-30 $125.00 HR 8 1,000.00
Water truck, dust control ESC-31 SWDM 5.4.7 $160.00 HR
WRITE-IN-ITEMS
Unit
Reference #Price Unit Quantity Cost
Straw Wattles SWDM D.2.1.2.5 $4.00 LF 1720 6,880.00
EROSION/SEDIMENT SUBTOTAL:10,040.00
SALES TAX @ 10.1%1,014.04
EROSION/SEDIMENT TOTAL:11,054.04
(A)
Page 5 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR STREET AND SITE IMPROVEMENTS
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
GENERAL ITEMS
Backfill & Compaction- embankment GI-1 $7.00 CY
Backfill & Compaction- trench GI-2 $10.25 CY
Clear/Remove Brush, by hand (SY)GI-3 $1.15 SY
Bollards - fixed GI-4 $275.00 Each 12 3,300.00
Bollards - removable GI-5 $520.00 Each 6 3,120.00
Clearing/Grubbing/Tree Removal GI-6 $11,475.00 Acre
Excavation - bulk GI-7 $2.30 CY 40 92.00
Excavation - Trench GI-8 $5.75 CY
Fencing, cedar, 6' high GI-9 $23.00 LF
Fencing, chain link, 4'GI-10 $44.00 LF
Fencing, chain link, vinyl coated, 6' high GI-11 $23.00 LF
Fencing, chain link, gate, vinyl coated, 20' GI-12 $1,600.00 Each
Fill & compact - common barrow GI-13 $28.75 CY 25 718.75
Fill & compact - gravel base GI-14 $31.00 CY
Fill & compact - screened topsoil GI-15 $44.75 CY
Gabion, 12" deep, stone filled mesh GI-16 $74.50 SY
Gabion, 18" deep, stone filled mesh GI-17 $103.25 SY
Gabion, 36" deep, stone filled mesh GI-18 $172.00 SY
Grading, fine, by hand GI-19 $2.90 SY 1450 4,205.00
Grading, fine, with grader GI-20 $2.30 SY 1450 3,335.00
Monuments, 3' Long GI-21 $1,025.00 Each
Sensitive Areas Sign GI-22 $8.00 Each
Sodding, 1" deep, sloped ground GI-23 $9.25 SY
Surveying, line & grade GI-24 $975.00 Day
Surveying, lot location/lines GI-25 $2,050.00 Acre
Topsoil Type A (imported)GI-26 $32.75 CY
Traffic control crew ( 2 flaggers )GI-27 $137.75 HR
Trail, 4" chipped wood GI-28 $9.15 SY
Trail, 4" crushed cinder GI-29 $10.25 SY
Trail, 4" top course GI-30 $13.75 SY
Conduit, 2"GI-31 $5.75 LF
Wall, retaining, concrete GI-32 $63.00 SF
Wall, rockery GI-33 $17.25 SF
SUBTOTAL THIS PAGE:14,770.75
(B)(C)(D)(E)
Page 6 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
ROAD IMPROVEMENT/PAVEMENT/SURFACING
AC Grinding, 4' wide machine < 1000sy RI-1 $34.50 SY
AC Grinding, 4' wide machine 1000-2000sy RI-2 $18.25 SY
AC Grinding, 4' wide machine > 2000sy RI-3 $11.50 SY
AC Removal/Disposal RI-4 $40.00 SY 711 28,440.00
Barricade, Type III ( Permanent )RI-5 $64.25 LF
Guard Rail RI-6 $34.50 LF
Curb & Gutter, rolled RI-7 $19.50 LF
Curb & Gutter, vertical RI-8 $14.25 LF 40 570.00
Curb and Gutter, demolition and disposal RI-9 $20.50 LF 55 1,127.50
Curb, extruded asphalt RI-10 $6.25 LF
Curb, extruded concrete RI-11 $8.00 LF
Sawcut, asphalt, 3" depth RI-12 $3.00 LF 1545 4,635.00
Sawcut, concrete, per 1" depth RI-13 $5.00 LF 267 1,335.00
Sealant, asphalt RI-14 $2.25 LF 1430 3,217.50
Shoulder, gravel, 4" thick RI-15 $17.25 SY
Sidewalk, 4" thick RI-16 $43.50 SY 600 26,100.00
Sidewalk, 4" thick, demolition and disposal RI-17 $37.00 SY 735 27,195.00
Sidewalk, 5" thick RI-18 $47.00 SY
Sidewalk, 5" thick, demolition and disposal RI-19 $46.00 SY
Sign, Handicap RI-20 $97.00 Each 2 194.00
Striping, per stall RI-21 $8.00 Each 64 512.00
Striping, thermoplastic, ( for crosswalk )RI-22 $3.50 SF 500 1,750.00
Striping, 4" reflectorized line RI-23 $0.55 LF 200 110.00
Additional 2.5" Crushed Surfacing RI-24 $4.15 SY
HMA 1/2" Overlay 1.5" RI-25 $16.00 SY
HMA 1/2" Overlay 2"RI-26 $20.75 SY
HMA Road, 2", 4" rock, First 2500 SY RI-27 $32.25 SY
HMA Road, 2", 4" rock, Qty. over 2500SY RI-28 $24.00 SY
HMA Road, 4", 6" rock, First 2500 SY RI-29 $51.75 SY
HMA Road, 4", 6" rock, Qty. over 2500 SY RI-30 $42.50 SY
HMA Road, 4", 4.5" ATB RI-31 $43.50 SY
Gravel Road, 4" rock, First 2500 SY RI-32 $17.25 SY
Gravel Road, 4" rock, Qty. over 2500 SY RI-33 $11.50 SY
Thickened Edge RI-34 $10.00 LF
SUBTOTAL THIS PAGE:95,186.00
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR STREET AND SITE IMPROVEMENTS
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 7 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
PARKING LOT SURFACING No.
2" AC, 2" top course rock & 4" borrow PL-1 $24.00 SY 80 1,920.00
2" AC, 1.5" top course & 2.5" base course PL-2 $32.00 SY
4" select borrow PL-3 $5.75 SY
1.5" top course rock & 2.5" base course PL-4 $16.00 SY
SUBTOTAL PARKING LOT SURFACING:1,920.00
(B)(C)(D)(E)
LANDSCAPING & VEGETATION No.
Street Trees LA-1
Median Landscaping LA-2
Right-of-Way Landscaping LA-3
Wetland Landscaping LA-4
SUBTOTAL LANDSCAPING & VEGETATION:
(B)(C)(D)(E)
TRAFFIC & LIGHTING No.
Signs TR-1
Street Light System ( # of Poles)TR-2
Traffic Signal TR-3
Traffic Signal Modification TR-4
SUBTOTAL TRAFFIC & LIGHTING:
(B)(C)(D)(E)
WRITE-IN-ITEMS
ADA Ramps WI-1 $1,500.00 EA 2 3,000.00
Sealcoat Parking Lot WI-2 $0.85 SF 35975 30,578.75
Wheel Stops WI-3 $250.00 EA 7 1,750.00
SUBTOTAL WRITE-IN ITEMS:35,328.75
STREET AND SITE IMPROVEMENTS SUBTOTAL:147,205.50
SALES TAX @ 10.1%14,867.76
STREET AND SITE IMPROVEMENTS TOTAL:162,073.26
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR STREET AND SITE IMPROVEMENTS
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 8 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR DRAINAGE AND STORMWATER FACILITIES
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
DRAINAGE (CPE = Corrugated Polyethylene Pipe, N12 or Equivalent) For Culvert prices, Average of 4' cover was assumed. Assume perforated PVC is same price as solid pipe.)
Access Road, R/D D-1 $30.00 SY
* (CBs include frame and lid)
Beehive D-2 $103.00 Each
Through-curb Inlet Framework D-3 $460.00 Each
CB Type I D-4 $1,725.00 Each
CB Type IL D-5 $2,000.00 Each
CB Type II, 48" diameter D-6 $3,500.00 Each
for additional depth over 4' D-7 $550.00 FT
CB Type II, 54" diameter D-8 $4,075.00 Each
for additional depth over 4'D-9 $570.00 FT
CB Type II, 60" diameter D-10 $4,225.00 Each
for additional depth over 4'D-11 $690.00 FT
CB Type II, 72" diameter D-12 $6,900.00 Each
for additional depth over 4'D-13 $975.00 FT
CB Type II, 96" diameter D-14 $16,000.00 Each
for additional depth over 4'D-15 $1,050.00 FT
Trash Rack, 12"D-16 $400.00 Each
Trash Rack, 15"D-17 $470.00 Each
Trash Rack, 18"D-18 $550.00 Each
Trash Rack, 21"D-19 $630.00 Each
Cleanout, PVC, 4"D-20 $170.00 Each
Cleanout, PVC, 6"D-21 $195.00 Each
Cleanout, PVC, 8"D-22 $230.00 Each
Culvert, PVC, 4" D-23 $11.50 LF
Culvert, PVC, 6" D-24 $15.00 LF
Culvert, PVC, 8" D-25 $17.00 LF
Culvert, PVC, 12" D-26 $26.00 LF
Culvert, PVC, 15" D-27 $40.00 LF
Culvert, PVC, 18" D-28 $47.00 LF
Culvert, PVC, 24"D-29 $65.00 LF
Culvert, PVC, 30" D-30 $90.00 LF
Culvert, PVC, 36" D-31 $150.00 LF
Culvert, CMP, 8"D-32 $22.00 LF
Culvert, CMP, 12"D-33 $33.00 LF
SUBTOTAL THIS PAGE:
(B)(C)(D)(E)
Page 9 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
DRAINAGE (Continued)
Culvert, CMP, 15"D-34 $40.00 LF
Culvert, CMP, 18"D-35 $47.00 LF
Culvert, CMP, 24"D-36 $64.00 LF
Culvert, CMP, 30"D-37 $90.00 LF
Culvert, CMP, 36"D-38 $150.00 LF
Culvert, CMP, 48"D-39 $218.00 LF
Culvert, CMP, 60"D-40 $310.00 LF
Culvert, CMP, 72"D-41 $400.00 LF
Culvert, Concrete, 8"D-42 $48.00 LF
Culvert, Concrete, 12"D-43 $55.00 LF
Culvert, Concrete, 15"D-44 $89.00 LF
Culvert, Concrete, 18"D-45 $100.00 LF
Culvert, Concrete, 24"D-46 $120.00 LF
Culvert, Concrete, 30"D-47 $145.00 LF
Culvert, Concrete, 36"D-48 $175.00 LF
Culvert, Concrete, 42"D-49 $200.00 LF
Culvert, Concrete, 48"D-50 $235.00 LF
Culvert, CPE Triple Wall, 6" D-51 $16.00 LF
Culvert, CPE Triple Wall, 8" D-52 $18.00 LF
Culvert, CPE Triple Wall, 12" D-53 $27.00 LF
Culvert, CPE Triple Wall, 15" D-54 $40.00 LF
Culvert, CPE Triple Wall, 18" D-55 $47.00 LF
Culvert, CPE Triple Wall, 24"D-56 $64.00 LF
Culvert, CPE Triple Wall, 30" D-57 $90.00 LF
Culvert, CPE Triple Wall, 36" D-58 $149.00 LF
Culvert, LCPE, 6"D-59 $69.00 LF
Culvert, LCPE, 8"D-60 $83.00 LF
Culvert, LCPE, 12"D-61 $96.00 LF
Culvert, LCPE, 15"D-62 $110.00 LF
Culvert, LCPE, 18"D-63 $124.00 LF
Culvert, LCPE, 24"D-64 $138.00 LF
Culvert, LCPE, 30"D-65 $151.00 LF
Culvert, LCPE, 36"D-66 $165.00 LF
Culvert, LCPE, 48"D-67 $179.00 LF
Culvert, LCPE, 54"D-68 $193.00 LF
SUBTOTAL THIS PAGE:
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR DRAINAGE AND STORMWATER FACILITIES
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 10 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
DRAINAGE (Continued)
Culvert, LCPE, 60"D-69 $206.00 LF
Culvert, LCPE, 72"D-70 $220.00 LF
Culvert, HDPE, 6"D-71 $48.00 LF
Culvert, HDPE, 8"D-72 $60.00 LF
Culvert, HDPE, 12"D-73 $85.00 LF
Culvert, HDPE, 15"D-74 $122.00 LF
Culvert, HDPE, 18"D-75 $158.00 LF
Culvert, HDPE, 24"D-76 $254.00 LF
Culvert, HDPE, 30"D-77 $317.00 LF
Culvert, HDPE, 36"D-78 $380.00 LF
Culvert, HDPE, 48"D-79 $443.00 LF
Culvert, HDPE, 54"D-80 $506.00 LF
Culvert, HDPE, 60"D-81 $570.00 LF
Culvert, HDPE, 72"D-82 $632.00 LF
Pipe, Polypropylene, 6"D-83 $96.00 LF
Pipe, Polypropylene, 8"D-84 $100.00 LF
Pipe, Polypropylene, 12"D-85 $100.00 LF
Pipe, Polypropylene, 15"D-86 $103.00 LF
Pipe, Polypropylene, 18"D-87 $106.00 LF
Pipe, Polypropylene, 24"D-88 $119.00 LF
Pipe, Polypropylene, 30"D-89 $136.00 LF
Pipe, Polypropylene, 36"D-90 $185.00 LF
Pipe, Polypropylene, 48"D-91 $260.00 LF
Pipe, Polypropylene, 54"D-92 $381.00 LF
Pipe, Polypropylene, 60"D-93 $504.00 LF
Pipe, Polypropylene, 72"D-94 $625.00 LF
Culvert, DI, 6"D-95 $70.00 LF
Culvert, DI, 8"D-96 $101.00 LF
Culvert, DI, 12"D-97 $121.00 LF
Culvert, DI, 15"D-98 $148.00 LF
Culvert, DI, 18"D-99 $175.00 LF
Culvert, DI, 24"D-100 $200.00 LF
Culvert, DI, 30"D-101 $227.00 LF
Culvert, DI, 36"D-102 $252.00 LF
Culvert, DI, 48"D-103 $279.00 LF
Culvert, DI, 54"D-104 $305.00 LF
Culvert, DI, 60"D-105 $331.00 LF
Culvert, DI, 72"D-106 $357.00 LF
SUBTOTAL THIS PAGE:
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR DRAINAGE AND STORMWATER FACILITIES
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 11 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
Specialty Drainage Items
Ditching SD-1 $10.90 CY
Flow Dispersal Trench (1,436 base+)SD-3 $32.00 LF
French Drain (3' depth)SD-4 $30.00 LF
Geotextile, laid in trench, polypropylene SD-5 $3.40 SY
Mid-tank Access Riser, 48" dia, 6' deep SD-6 $2,300.00 Each
Pond Overflow Spillway SD-7 $18.25 SY
Restrictor/Oil Separator, 12"SD-8 $1,320.00 Each
Restrictor/Oil Separator, 15"SD-9 $1,550.00 Each
Restrictor/Oil Separator, 18"SD-10 $1,950.00 Each
Riprap, placed SD-11 $48.20 CY
Tank End Reducer (36" diameter)SD-12 $1,375.00 Each
Infiltration pond testing SD-13 $143.00 HR
Permeable Pavement SD-14
Permeable Concrete Sidewalk SD-15
Culvert, Box __ ft x __ ft SD-16
SUBTOTAL SPECIALTY DRAINAGE ITEMS:
(B)(C)(D)(E)
STORMWATER FACILITIES (Include Flow Control and Water Quality Facility Summary Sheet and Sketch)
Detention Pond SF-1 Each
Detention Tank SF-2 Each
Detention Vault SF-3 Each
Infiltration Pond SF-4 Each
Infiltration Tank SF-5 Each
Infiltration Vault SF-6 Each
Infiltration Trenches SF-7 Each
Basic Biofiltration Swale SF-8 Each
Wet Biofiltration Swale SF-9 Each
Wetpond SF-10 Each
Wetvault SF-11 Each
Sand Filter SF-12 Each
Sand Filter Vault SF-13 Each
Linear Sand Filter SF-14 Each
Proprietary Facility SF-15 Each
Bioretention Facility SF-16 Each
SUBTOTAL STORMWATER FACILITIES:
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR DRAINAGE AND STORMWATER FACILITIES
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 12 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
WRITE-IN-ITEMS (INCLUDE ON-SITE BMPs)
Replace CB Grate to be ADA Compliant WI-1 $1,000.00 EA 1 1,000.00
WI-2
WI-3
WI-4
WI-5
WI-6
WI-7
WI-8
WI-9
WI-10
WI-11
WI-12
WI-13
WI-14
WI-15
SUBTOTAL WRITE-IN ITEMS:1,000.00
DRAINAGE AND STORMWATER FACILITIES SUBTOTAL:1,000.00
SALES TAX @ 10.1%101.00
DRAINAGE AND STORMWATER FACILITIES TOTAL:1,101.00
(B)(C)(D)(E)
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR DRAINAGE AND STORMWATER FACILITIES
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Page 13 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.d WATER
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR WATER
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Connection to Existing Watermain W-1 $3,400.00 Each
Ductile Iron Watermain, CL 52, 4 Inch Diameter W-2 $58.00 LF
Ductile Iron Watermain, CL 52, 6 Inch Diameter W-3 $65.00 LF
Ductile Iron Watermain, CL 52, 8 Inch Diameter W-4 $75.00 LF
Ductile Iron Watermain, CL 52, 10 Inch Diameter W-5 $80.00 LF
Ductile Iron Watermain, CL 52, 12 Inch Diameter W-6 $145.00 LF
Gate Valve, 4 inch Diameter W-7 $1,225.00 Each
Gate Valve, 6 inch Diameter W-8 $1,350.00 Each
Gate Valve, 8 Inch Diameter W-9 $1,550.00 Each
Gate Valve, 10 Inch Diameter W-10 $2,100.00 Each
Gate Valve, 12 Inch Diameter W-11 $2,500.00 Each
Fire Hydrant Assembly W-12 $5,000.00 Each
Permanent Blow-Off Assembly W-13 $1,950.00 Each
Air-Vac Assembly, 2-Inch Diameter W-14 $3,050.00 Each
Air-Vac Assembly, 1-Inch Diameter W-15 $1,725.00 Each
Compound Meter Assembly 3-inch Diameter W-16 $9,200.00 Each
Compound Meter Assembly 4-inch Diameter W-17 $10,500.00 Each
Compound Meter Assembly 6-inch Diameter W-18 $11,500.00 Each
Pressure Reducing Valve Station 8-inch to 10-inch W-19 $23,000.00 Each
WATER SUBTOTAL:
SALES TAX @ 10.1%
WATER TOTAL:
(B)(C)(D)(E)
Page 14 of 15
Ref 8-H Bond Quantity Worksheet SECTION II.e SANITARY SEWER
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
FOR SANITARY SEWER
CED Permit #:B22003956
Existing Future Public Private Quantity Remaining
(Bond Reduction)Right-of-Way Improvements Improvements
(B)(C)(D) (E)
Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost
Clean Outs SS-1 $1,150.00 Each
Grease Interceptor, 500 gallon SS-2 $9,200.00 Each
Grease Interceptor, 1000 gallon SS-3 $11,500.00 Each
Grease Interceptor, 1500 gallon SS-4 $17,200.00 Each
Side Sewer Pipe, PVC. 4 Inch Diameter SS-5 $92.00 LF
Side Sewer Pipe, PVC. 6 Inch Diameter SS-6 $110.00 LF
Sewer Pipe, PVC, 8 inch Diameter SS-7 $120.00 LF
Sewer Pipe, PVC, 12 Inch Diameter SS-8 $144.00 LF
Sewer Pipe, DI, 8 inch Diameter SS-9 $130.00 LF
Sewer Pipe, DI, 12 Inch Diameter SS-10 $150.00 LF
Manhole, 48 Inch Diameter SS-11 $6,900.00 Each
Manhole, 54 Inch Diameter SS-13 $6,800.00 Each
Manhole, 60 Inch Diameter SS-15 $7,600.00 Each
Manhole, 72 Inch Diameter SS-17 $10,600.00 Each
Manhole, 96 Inch Diameter SS-19 $16,000.00 Each
Pipe, C-900, 12 Inch Diameter SS-21 $205.00 LF
Outside Drop SS-24 $1,700.00 LS
Inside Drop SS-25 $1,150.00 LS
Sewer Pipe, PVC, ____ Inch Diameter SS-26
Lift Station (Entire System)SS-27 LS
SANITARY SEWER SUBTOTAL:
SALES TAX @ 10.1%
SANITARY SEWER TOTAL:
(B)(C)(D)(E)
Page 15 of 15
Ref 8-H Bond Quantity Worksheet SECTION III. BOND WORKSHEET
Unit Prices Updated: 01/07/2022
Version: 01/07/2022
Printed 11/8/2022
SITE IMPROVEMENT BOND QUANTITY WORKSHEET
BOND CALCULATIONS
1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200
Date:11/8/2022
Prepared by:Project Information
Name:Alan Jacobson Project Name: Honey Dew ES - Saftey Upgrades
PE Registration No:43667 CED Plan # (LUA):##-######
Firm Name:Jacobson Consulting Engineers CED Permit # (C):B22003956
Firm Address:255 S King ST, Suite 800, Seattle, WA 98104 Site Address:800 Union Ave, Renton, WA 98059
Phone No.(206) 426-2600 Parcel #(s):1023059007, 1023059121
Email Address:alan@jacobsonengineers.com Project Phase: FOR APPROVAL
CONSTRUCTION BOND AMOUNT */**
(prior to permit issuance)
MAINTENANCE BOND */**
(after final acceptance of construction)
Site Restoration/Erosion Sediment Control Subtotal (a)$11,054.04
Existing Right-of-Way Improvements Subtotal (b)$-(b)$-
Future Public Improvements Subtotal (c)$-
Stormwater & Drainage Facilities (Public & Private) Subtotal (d)$1,101.00 (d)$1,101.00
Bond Reduction: Existing Right-of-Way Improvements (Quantity
Remaining)2 (e)$-
Bond Reduction: Stormwater & Drainage Facilities (Quantity
Remaining)2 (f)$-
Site Restoration P
(a) x 100%
$11,054.04
Existing Right-of-Way and Storm Drainage Improvements R
((b x 150%) + (d x 100%))
$1,101.00
Maintenance Bond EST1
((b) + (c) + (d)) x 20%$220.20
Bond Reduction2 S
(e) x 150% + (f) x 100%
$-
Construction Permit Bond Amount 3 T
(P +R - S)
$12,155.04
Minimum Bond Amount is $10,000.00
1 Estimate Only - May involve multiple and variable components, which will be established on an individual basis by Development Engineering.
2 The City of Renton allows one request only for bond reduction prior to the maintenance period. Reduction of not more than 70% of the original bond amount, provided that the remaining 30% will
cover all remaining items to be constructed.
3 Required Bond Amounts are subject to review and modification by Development Engineering.
* Note: The word BOND as used in this document means any financial guarantee acceptable to the City of Renton.
** Note: All prices include labor, equipment, materials, overhead, profit, and taxes.