HomeMy WebLinkAboutRS_TIR_Skyhorse_210427_v1
Western Washington Division Eastern Washington Division
165 NE Juniper St., Ste 201, Issaquah, WA 98027 108 East 2nd Street, Cle Elum, WA 98922
Phone: (425) 392-0250 Fax: (425) 391-3055 Phone: (509) 674-7433 Fax: (509) 674-7419
www.EncompassES.net
TECHNICAL INFORMATION REPORT
For
Skyhorse Short Plat
16327 SE 132nd Street
Renton, WA 98059
December 10, 2019
Revised: October 27, 2020
10/10/10/10/27272727/2020/2020/2020/2020
Prepared by:
Samuel Salo
Encompass Engineering Job No. 14603
Prepared For:
Newfourth, LLC
14161 East Lake Kathleen Drive SE
Renton WA, 98059
DEVELOPMENT ENGINEERING
Nathan Janders 04/12/2021
SURFACE WATER UTILITY
jfarah 04/12/2021
Skyhorse Short Plat Technical Information Report
10/27/2020 Page i
Table of Contents
I. PROJECT OVERVIEW ................................................................................................................ 1
II. CONDITIONS AND REQUIREMENTS SUMMARY ...................................................................... 4
III. OFF-SITE ANALYSIS .................................................................................................................. 6
IV. FLOW CONTROL, LOW IMPACT DEVELOPMENT (LID) AND WATER QUALITY FACILITY
ANALYSIS AND DESIGN ........................................................................................................... 6
V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN ..................................................................... 11
VI. SPECIAL REPORTS AND STUDIES ............................................................................................ 17
VII. OTHER PERMITS ..................................................................................................................... 17
VIII. CSWPPP ANALYSIS AND DESIGN............................................................................................ 17
IX. BOND QUANTITIES and DECLARATION of COVENANT .......................................................... 17
X. OPERATION AND MAINTENANCE MANUAL .......................................................................... 17
List of Figures:
Figure 1 – TIR Worksheet
Figure 2 – Project Area
Figure 3 – Soils Map
Figure 4 – Drainage Basins, Subbasins and Site Characteristics
Figure 5 – Existing Conditions Map
Figure 6 – Developed Conditions Map
Appendix A
Geotechnical Engineering Study by Earth Solutions NW LLC dated July 13, 2016 revised August 24, 2017
Appendix B
Level II Downstream Drainage Analysis
Appendix C
· North Basin WWHM Output
o Vault Sizing
o Unmitigated Flows
· South Basin WWHM Output
o Vault Sizing
o Unmitigated Flows
Appendix D
Operations and Maintenance Manual
Appendix E
Bond Quantity Worksheet updated October 27, 2020
Appendix F
Facilities Summaries
Newfourth LLC
19244 39th Ave S
Seatac, WA 98188
Nicole Mecum
Skyhorse Short Plat
Encompass Engineering and Surveying
(425)392-0250
23
5
13, 14
4
12/10/2019
10/27/2020
4
12/10/2019
10/27/2020
4
4
4
4
16327 SE 132nd St
Renton, WA 98059
None
Yes Turbidity Monitoring
T.B.D.
N/A
City of Renton
May Creek and Lower Cedar River
AgC & Qvt 5-10%Low
Wetland and County Detention Pond
2
2 8/11/2016
Peak Rate Flow Control Standard
T.B.D.
T.B.D.
Detention Vault
4
Public
No
Yes
Enhanced Basic
None
None
None
N/A
No
2 detention/wetvaults
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Detention Vault
Permeable Pavement
Wetvault
10/27/2020
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 1
I. PROJECT OVERVIEW
Site Address: 16327 SE 132nd Street, Renton, WA 98059 (see Project Area)
King County Tax Parcel: 132305-9053, 145750-0023
Figure 2: Project Area
This project involves the development of two existing parcels with an area of 108,890 SF into 8
single-family lots and improve 26,337 SF of right-of-way. The total project area is 136,389 SF. The
existing parcels are located on the southwest and southeast corners of the intersection SE 132nd
Street and the unopened 164th Avenue SE right-of-way. The current zoning for the site is R-4, and
the site is surrounded by existing residential single-family homes. The two parcels are currently
vacant. The soils types on the site are classified as Alderwood gravelly sandy loam at 8-15% slopes
(see following soils map). A Geotechnical Engineering Study was prepared by Earth Solutions NW
LLC dated July 13, 2016 revised August 24, 2017. This study agrees with to soil classification (see
Appendix A).
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 2
Figure 3: Soils Map
Proposed Site Conditions
The proposed development will subdivide two existing parcels into 8 single-family residential lots
with a minimum lot size of 9,384 SF. The total project area of 136,389 SF has been broken down
into two separate drainage basins based on existing topography. Two developed basins (north
and south) are proposed to maintain the existing discharge points. (See Developed Basin Map).
The northern basin consists of Lot 1, Lot 8, Tract D and the northern portion of 164th Avenue SE
with frontage improvements and half street improvements on SE 132nd St. (Approximately 50,450
SF = 1.16 Acre). The south basin consists of lots 2-7 and Tracts A & C and the remaining portion
of 164th Ave SE with frontage improvements. (Approximately 85,939 SF = 1.97 Acre). A
combination detention water quality vault is proposed for each basin. See Section IV of this TIR
for more information on the sizing of these facilities.
The proposed impervious surface area will include new right-of-way improvements on both SE
132nd Street and 164th Avenue SE. The total road and sidewalk area modeled is 21,639 SF. 4,000
SF of impervious per lot is assumed.
Skyhorse Short Plat Technical Information Report
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II. CONDITIONS AND REQUIREMENTS SUMMARY
The 2017 City of Renton Surface Water Design Manual was utilized for this report per the
City of Renton requirements.
Core Requirements
Core Requirement #1: Discharge at the Natural Location
The project site is divided into two drainage basins by a ridgeline through the central
portion of the site. The proposed development runoff will follow existing drainage
patterns and will be routed to same discharge points as existing condition. Refer to the
Level II Downstream Analysis in Appendix B for a complete description of the existing
drainage paths.
Core Requirement #2: Offsite Analysis
A ridgeline through the project site divides it into two basins. The northern portion of the
site is within the May Creek Drainage Basin. The southern portion of the site is within the
Lower Cedar River Drainage Basin. A Level II Downstream Analysis has been prepared and
is included with the submittal package. No problems were identified downstream of the
project site.
Core Requirement #3: Flow Control Facilities
Two combination water quality and detention vaults are proposed for the site. WWHM
automatically sized these for the Flood Problem Flow Control Standard. The standard
includes flow control for duration matching forested (historical) conditions for the 2 year
through the 100-yr return frequencies. Stream Protection Duration Graphs are included
in Section IV of this TIR.
Core Requirement #4: Conveyance System
New on and off-site storm conveyance systems are proposed to convey stormwater to
the existing discharge locations. All new conveyance systems including diches/channels
will be designed with sufficient capacity to convey the 25-year peak flow, assuming
developed conditions for onsite tributary areas and existing conditions for any offsite
tributary areas. A backwater analysis has been performed for the storm systems upstream
of the vaults. A breakdown of this analysis is included in Section V of this TIR.
Core Requirement #5: Erosion and Sediment Control
A temporary erosion and sediment control (TESC) plan provides BMPs to be implemented
during construction has been prepared and is included as Sheet 4 of 18 of the engineering
planset.
Core Requirement #6: Maintenance and Operations
See Section X – Operation and Maintenance Manual
Core Requirement #7: Financial Guarantees and Liability
The owner will arrange for any financial guarantees and liabilities required by the
permit.
Core Requirement #8: Water Quality Facilities
Refer to Section IV of this TIR for Water Quality Analysis and Design
Core Requirement #9: Flow Control BMPs
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 5
Target impervious surface for Flow Control BMPs include new impervious surfaces, new
pervious surfaces, and replaced impervious surfaces, not already mitigated with an
approved on-site BMP or flow control facility per Section 1.2.9.1.A of the 2017 City of
Renton Surface Water Design Manual. This project proposes to route all surfaces to the
detention vault facilities, therefore no further BMPs are proposed at this time to meet
this requirement with the exception of soil amendment. This project proposes to amend
all pervious services per Section C.2.13. Individual lot infiltration BMPs will be designed
with the single-family building permits.
Full Dispersion: Infeasible
· There is not enough on-site area available for the required Native Growth Retention
Area (NGRA).
Full Infiltration: Infeasible
· The Geotechnical Engineering Study prepared by Earth Solutions Northwest
(Appendix A) states that full infiltration is infeasible at the site due dense soil
characteristics.
Limited Infiltration: Feasible
· The Geotechnical Engineering Study prepared by Earth Solutions Northwest
(Appendix A) states that limited infiltration is feasible. Limited Infiltration BMPs will
be designed for 10% of the individual lot areas with single-family building permits.
Rain Gardens: N/A
· The feasibility of rain gardens has not been evaluated as limited infiltration is
proposed for individual lot BMPs.
Bioretention: Infeasible
· The feasibility of bioretention has not been evaluated as limited infiltration is
proposed for individual lot BMPs.
Permeable Pavement: Feasible
· The Geotechnical Engineering Study prepared by Earth Solutions Northwest
(Appendix A) states that limited infiltration is feasible. Permeable pavement is
proposed for the 5,627 SF of sidewalk.
Basic Dispersion: Infeasible
· Site topography does not allow for dispersion downstream of the impervious surfaces
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 6
Pervious Surface BMPs
Soil Amendment: Feasible
· All disturbed, pervious areas of the project will meet soil amendment requirements
as detailed in Section C.2.13 of the RSWDM.
Special Requirements
Special Requirement #1: Other Adopted Area-Specific Requirements
Critical Drainage Area – N/A
Master Drainage Plan – N/A
Basin Plan – May Creek & Lower Cedar River Drainage Basin
Lake management Plan – N/A
Shared Facility Drainage Plan – N/A
Special Requirement #2: Flood Hazard Area Delineation
The limits of this project do not lie in a 100-year floodplain.
Special Requirement #3: Flood Protection Facilities
This special requirement is for Class 1 or 2 streams with an existing flood protection
facility. The site does not contain any streams and is therefore not applicable.
Special Requirement #4: Source controls
This project is a single-family residential project and this requirement is not applicable.
Special Requirement #5: Oil Control
This project is not considered high-use in need of oil control.
Special Requirement #6: Aquifer Protection Area
The project is not part of an Aquifer Protection Area.
III. OFF-SITE ANALYSIS
A Level II Downstream Analysis is included in Appendix B of this TIR.
IV. FLOW CONTROL, LOW IMPACT DEVELOPMENT (LID) AND WATER QUALITY
FACILITY ANALYSIS AND DESIGN
A detention vault for each basin has been sized using WWHM. This program automatically
sized the vaults as level 3 flow control facilities. The predeveloped basin areas were
modeled as forest. This analysis assumes 4,000 SF of impervious per lot in the developed
condition. This limit will be recorded on the face of the final short plat. The North TDA
includes Lot 1, Lot 8, Tract D and the Northern portion of 164th Avenue SE with frontage
improvements and half street improvements on SE 132nd St. The South TDA includes lots
2-7, Tracts A & C and the remaining portion of 164th Ave SE with frontage improvements.
All developed pervious are modeled as pasture due to the use of soil amendment BMPs
as outlined in the 2017 Renton SWDM Appendix C, Section C.2.1.1. The results of this
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 7
analysis are shown on the following page. See Stream Protection Duration Graphs and
Existing and Developed Conditions Maps on at the end of this section. Full WWHM output
is included in Appendix C.
North TDA
The Vault for the North TDA was sized with a storage volume of 0.243 Acre-Ft or 10,585 CU-FT.
The water quality volume for the North Vault is 0.0822 Acre-Ft or 3,581 CU-FT.
South TDA
The vault for the South TDA was sized with a storage volume of 0.381 Acre-FT or 16,596 CU-FT.
The water quality volume for the South Vault is 0.1498 Acre-FT or 6,525 CU-FT.
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 8
North Vault
Stream Protection Duration Graph
South Vault
Stream Protection Duration Graph
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 11
V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN
The systems upstream of the detention vaults were analyzed using the King County
Backwater program. The total Q for each basin was found using WWHM to determine the
25-year and 10-year flowrates. Snips of the WWHM flowrates are included below. The Q-
ratios were obtained by dividing the tributary area of each catch basin by the total
tributary area in each drainage basin. The total tributary area for the north basin is 50,450
SF. The total tributary area for the south basin is 85,939 SF. These values were then input
into the program along with the design parameters of each pipe. The maximum water
surface elevation of the northern vault is 461.35. The maximum water surface of the
southern vault is 459.55. It was concluded that the pipe networks could safely convey
runoff during the 100-year storm events with no resulting backwater problems. The
results of this analysis are included on the following pages. Full WWHM output for the
unmitigated flows are included in Appendix C.
North Basin Peak Flows South Basin Peak Flows
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 12
KCBW for North Basin CBs 3-6
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 13
KCBW for North Basin CBs 4 & 7
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 14
KCBW for North Basin CBs 8 & 10-12
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 15
KCBW for North Basin CBs 8 & 9
The project proposes on and off-site storm pipe conveyance systems to route storm water
to existing discharging locations. New conveyance systems will be designed with sufficient
capacity to convey and contain minimum of 100-year peak flow, assuming developed
conditions for onsite tributary areas and existing conditions for any offsite tributary areas.
Per the Manning’s Flow Control Calculator below, a 12” DI Pipe flowing at the minimum
of 0.5% can convey 2.91 CFS. This can safely convey the 100-year peak discharge of 0.5937
CFS from the northern basin. Per the same calculator, a 12” PVC Pipe flowing at the
minimum of 0.5% can convey 3.17 CFS. This can safely convey the 100-year peak discharge
of 0.9682 CFS from the southern basin. The flow control calculators are included on the
following page. WWHM outputs for the unmitigated flows are included in Appendix C.
note: pipe size was increased from 12" to 18"
starting at CB 17 as it was determined that this
CB is where future flows from the tributary
basin would start to enter the system. an 18"
line at 0.5% can convey approximately 8 CFS
which exceeds the estimated 100 yr flow from
the tributary basin assuming fully developed
conditions as estimated by staff.
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 16
Manning’s Flow Control Calculator for the North Basin
Manning’s Flow Control Calculator for the South Basin
Skyhorse Short Plat Technical Information Report
10/27/2020 Page 17
VI. SPECIAL REPORTS AND STUDIES
Geotechnical Engineering Report
Arborist Report
VII. OTHER PERMITS
Building permits will be required.
NPDES Permit
Approval from King County Water District 90
Right of Way use permit from King County
VIII. CSWPPP ANALYSIS AND DESIGN
A CSWPPP has been prepared and is included with the submittal package
IX. BOND QUANTITIES, FACILITIES SUMMARIES and DECLARATION of
COVENANT
Bond Quantities
Provided in Appendix E
Facilities Summaries
This will be provided if requested.
Declaration of Covenant
This is not required.
X. OPERATION AND MAINTENANCE MANUAL
An operation and maintenance manual is included in Appendix D.
Skyhorse Short Plat Technical Information Report
Appendix A
Geotechnical Engineering Study
EarthSolutionsNWLLC
EarthSolutions
NW LLC
Geotechnical Engineering
Geology
Environmental Scientists
Construction Monitoring
1805 -136th Place N.E.,Suite 201 Bellevue,WA 98005
(425)449-4704 Fax (425)449-4711
www.earthsolutionsnw.com
GEOTECHNICAL ENGINEERING STUDY
SKYHORSE RESIDENTIAL PLAT
16327 SOUTHEAST 132nd STREET
RENTON,WASHINGTON
ES-4491
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction Monitoring
EarthSolutionsNWLLC
EarthSolutions
NW LLC and Environmental Sciences
Vicinity Map
Skyhorse
Renton,Washington
MRS
BJP
07/01/2016
July 2016
4491
1
NORTH
NOTE:This plate may contain areas of color.ESNW cannot be
responsible for any subsequent misinterpretation of the information
resulting from black &white reproductions of this plate.
Reference:
King County,Washington
Map 657
By The Thomas Guide
Rand McNally
32nd Edition
SITE
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction Monitoring
EarthSolutionsNWLLC
EarthSolutions
NW LLC and Environmental Sciences
Test Pit Location Plan
Skyhorse
Renton,Washington
MRS
BJP
07/01/2016
July 2016
4491
2
NORTH
0 75 150 300
Sc ale in Feet1"=150'
NOTE:This plate may contain areas of color.ESNW cannot be
responsible for any subsequent misinterpretation of the information
resulting from black &white reproductions of this plate.
NOTE:The graphics shown on this plate are not intended for design
purposes or precise scale measurements,but only to illustrate the
approximate test locations relative to the approximate locations of
existing and /or proposed site features.The information illustrated
is largely based on data provided by the client at the time of our
study.ESNW cannot be responsible for subsequent design changes
or interpretation of the data by others.
LEGEND
Approximate Location of
ESNW Test Pit,Proj.No.
ES-4491,June 2016
Subject Site
Existing Building
Proposed Lot Number
TP-1
TP-2
TP-3
TP-4
TP-5
TP-6 TP-7
TP-8
TP-9TP-10
TP-1
House
Garage
1 2 3
4
5
6 7
8
9
10
11
Tract B
Tract A
SE 132ND STREET 164TH AVENUE S.E.11
470 460
450470
450
4704 6 0
460
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction Monitoring
and Environmental Sciences
EarthSolutionsNWLLC
EarthSolutions
NW LLC
RETAINING WALL DRAINAGE DETAIL
NOTES:
Free Draining Backfill should consist
of soil having less than 5 percent fines.
Percent passing #4 should be 25 to
75 percent.
Sheet Drain may be feasible in lieu
of Free Draining Backfill,per ESNW
recommendations.
Drain Pipe should consist of perforated,
rigid PVC Pipe surrounded with 1"
Drain Rock.
LEGEND:
Free Draining Structural Backfill
1 inch Drain Rock
18"Min.
Structural
Fill
Perforated Drain Pipe
(Surround In Drain Rock)
SCHEMATIC ONLY -NOT TO SCALE
NOT A CONSTRUCTION DRAWING
Skyhorse
Renton,Washington
MRS
BJP
07/01/2016
July 2016
4491
3
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction Monitoring
and Environmental Sciences
EarthSolutionsNWLLC
EarthSolutions
NW LLC
FOOTING DRAIN DETAIL
Slope
Perforated Rigid Drain Pipe
(Surround with 1"Rock)
18"(Min.)
NOTES:
Do NOT tie roof downspouts
to Footing Drain.
Surface Seal to consist of
12"of less permeable,suitable
soil.Slope away from building.
LEGEND:
Surface Seal;native soil or
other low permeability material.
1"Drain Rock
SCHEMATIC ONLY -NOT TO SCALE
NOT A CONSTRUCTION DRAW ING
Skyhorse
Renton,Washington
MRS
BJP
07/01/2016
July 2016
4491
4
Skyhorse Short Plat Technical Information Report
Appendix B
Level II Downstream Drainage Analysis
Skyhorse Short Plat Technical Information Report
Appendix C
North Basin WWHM Output
· Vault Sizing
· Unmitigated Flows
South Basin WWHM Output
· Vault Sizing
· Unmitigated Flows
Skyhorse Short Plat Technical Information Report
North Basin WWHM Output
· Vault Sizing
· Unmitigated Flows
Skyhorse Short Plat Technical Information Report
South Basin WWHM Output
· Vault Sizing
· Unmitigated Flows
Skyhorse Short Plat Technical Information Report
Appendix D
Operations and Maintenance Manual
Skyhorse Short Plat Technical Information Report
Appendix E
Bond Quantity Worksheet
Planning Division |1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200••Section I: Project Information•••Section II: Bond Quantities Worksheets••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••••••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. All unit prices include labor, equipment, materials, overhead and profit. Complete the 'Quantity' columns for each of the appropriate section(s). Include existing Right-of-Way (ROW), Future Public Improvements and Private Improvements.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. 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.BOND QUANTITY WORKSHEET INSTRUCTIONSThis 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:The following forms are to be completed by the engineer/developer/applicant as applicable to the project: The Bond Worksheet form will auto-calculate and auto-populate from the information provided in Section I and Section II.This section includes all pertinent information for the projectSection II contains a separate spreadsheet TAB for each of the following specialties: (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.This section must be completed in its entiretyInformation from this section auto-populates to all other relevant areas of the workbookPage 1 of 14Ref 8-H Bond Quantity WorksheetINSTRUCTIONSUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
Planning Division |1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200Date Prepared: Name:PE Registration No:Firm Name:Firm Address:Phone No.Email Address:Project Name: Project Owner:CED Plan # (LUA):Phone:CED Permit # (U):Address: Site Address:Street Intersection:Addt'l Project Owner:Parcel #(s):Phone:Address: Clearing and grading greater than or equal to 5,000 board feet of timber? Yes/No:NOWater Service Provided by:If Yes, Provide Forest Practice Permit #:Sewer Service Provided by: SITE IMPROVEMENT BOND QUANTITY WORKSHEETPROJECT INFORMATIONKC WATER DISTRICT 90CITY OF RENTON1 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 SubmittalN/AEngineer Stamp Required (all cost estimates must have original wet stamp and signature)Clearing and GradingUtility ProvidersN/AProject Location and DescriptionProject Owner InformationSkyhorse Short PlatSeatac, WA 981881457500023, 1323059053Newfourth LLC17-000550N/A10/27/2020Prepared by:FOR APPROVALProject Phase 1nmecum@encompasses.netNicole Mecum39897Encompass Engineering & Surveying165 NE Juniper Street #201425-392-0250163XX SE 132nd Street, Renton, WA 9805919244 39th Ave SouthN/ASE 130th St, SE 132nd St########N/AAbbreviated Legal Description: CEDAR PARK FIVE-ACRE TRS LESS W 358.51 FT MEAS ALG N BDRY & LESS E 118.76 FT OF N 143.71 FT LESS CO RD, W 200 FT OF N 1/2 OF N 1/2 OF SW 1/4 OF NW 1/4 LESS RD LESS C/M RGTSN/APage 2 of 14Ref 8-H Bond Quantity WorksheetSECTION I PROJECT INFORMATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########UnitReference #PriceUnitQuantity CostBackfill & compaction-embankmentESC-16.50$ CY Check dams, 4" minus rockESC-2SWDM 5.4.6.380.00$ Each Catch Basin ProtectionESC-335.50$ Each Crushed surfacing 1 1/4" minusESC-4WSDOT 9-03.9(3)95.00$ CY373,515.00DitchingESC-59.00$ CY Excavation-bulkESC-62.00$ CY Fence, siltESC-7SWDM 5.4.3.11.50$ LF11651,747.50Fence, Temporary (NGPE)ESC-81.50$ LF Geotextile FabricESC-92.50$ SY Hay Bale Silt TrapESC-100.50$ Each HydroseedingESC-11SWDM 5.4.2.40.80$ SY Interceptor Swale / DikeESC-121.00$ LF Jute MeshESC-13SWDM 5.4.2.23.50$ SY Level SpreaderESC-141.75$ LF Mulch, by hand, straw, 3" deepESC-15SWDM 5.4.2.12.50$ SY Mulch, by machine, straw, 2" deepESC-16SWDM 5.4.2.12.00$ SY Piping, temporary, CPP, 6"ESC-1712.00$ LF Piping, temporary, CPP, 8"ESC-1814.00$ LF Piping, temporary, CPP, 12"ESC-1918.00$ LF Plastic covering, 6mm thick, sandbaggedESC-20SWDM 5.4.2.34.00$ SY Rip Rap, machine placed; slopesESC-21WSDOT 9-13.1(2)45.00$ CY Rock Construction Entrance, 50'x15'x1'ESC-22SWDM 5.4.4.11,800.00$ Each Rock Construction Entrance, 100'x15'x1'ESC-23SWDM 5.4.4.13,200.00$ Each13,200.00Sediment pond riser assemblyESC-24SWDM 5.4.5.22,200.00$ Each Sediment trap, 5' high berm ESC-25SWDM 5.4.5.119.00$ LF Sed. trap, 5' high, riprapped spillway berm section ESC-26SWDM 5.4.5.170.00$ LF Seeding, by handESC-27SWDM 5.4.2.41.00$ SY Sodding, 1" deep, level groundESC-28SWDM 5.4.2.58.00$ SY Sodding, 1" deep, sloped groundESC-29SWDM 5.4.2.510.00$ SY TESC SupervisorESC-30110.00$ HR404,400.00Water truck, dust controlESC-31SWDM 5.4.7140.00$ HR405,600.00UnitReference #PriceUnitQuantity Cost EROSION/SEDIMENT SUBTOTAL:18,462.50SALES TAX @ 10%1,846.25EROSION/SEDIMENT TOTAL:20,308.75(A)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR EROSION & SEDIMENT CONTROLDescription No.(A)WRITE-IN-ITEMS Page 3 of 14Ref 8-H Bond Quantity WorksheetSECTION II.a EROSION_CONTROLUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostGENERAL ITEMS Backfill & Compaction- embankmentGI-16.00$ CYBackfill & Compaction- trenchGI-29.00$ CYClear/Remove Brush, by hand (SY)GI-31.00$ SYBollards - fixedGI-4240.74$ EachBollards - removableGI-5452.34$ EachClearing/Grubbing/Tree RemovalGI-610,000.00$ Acre2.3823,800.00Excavation - bulkGI-72.00$ CYExcavation - TrenchGI-85.00$ CYFencing, cedar, 6' highGI-920.00$ LFFencing, chain link, 4'GI-1038.31$ LFFencing, chain link, vinyl coated, 6' highGI-1120.00$ LFFencing, chain link, gate, vinyl coated, 20' GI-121,400.00$ EachFill & compact - common barrowGI-1325.00$ CYFill & compact - gravel baseGI-1427.00$ CYFill & compact - screened topsoilGI-1539.00$ CYGabion, 12" deep, stone filled mesh GI-1665.00$ SYGabion, 18" deep, stone filled mesh GI-1790.00$ SYGabion, 36" deep, stone filled meshGI-18150.00$ SYGrading, fine, by handGI-192.50$ SYGrading, fine, with graderGI-202.00$ SY30756,150.005201,040.001080021,600.00Monuments, 3' LongGI-21250.00$ Each2500.00Sensitive Areas SignGI-227.00$ EachSodding, 1" deep, sloped groundGI-238.00$ SYSurveying, line & gradeGI-24850.00$ DaySurveying, lot location/linesGI-251,800.00$ Acre2.54,500.00Topsoil Type A (imported)GI-2628.50$ CYTraffic control crew ( 2 flaggers )GI-27120.00$ HR404,800.00Trail, 4" chipped woodGI-288.00$ SYTrail, 4" crushed cinderGI-299.00$ SYTrail, 4" top courseGI-3012.00$ SYConduit, 2"GI-315.00$ LFWall, retaining, concreteGI-3255.00$ SFWall, rockeryGI-3315.00$ SFSUBTOTAL THIS PAGE:11,450.001,040.0049,900.00(B)(C)(D)(E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B)(C)Page 4 of 14Ref 8-H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B)(C)ROAD IMPROVEMENT/PAVEMENT/SURFACINGAC Grinding, 4' wide machine < 1000syRI-130.00$ SYAC Grinding, 4' wide machine 1000-2000syRI-216.00$ SYAC Grinding, 4' wide machine > 2000syRI-310.00$ SYAC Removal/DisposalRI-435.00$ SYBarricade, Type III ( Permanent )RI-556.00$ LF156.00156.00Guard RailRI-630.00$ LFCurb & Gutter, rolledRI-717.00$ LF82514,025.0015255.00Curb & Gutter, verticalRI-812.50$ LFCurb and Gutter, demolition and disposalRI-918.00$ LFCurb, extruded asphaltRI-105.50$ LFCurb, extruded concreteRI-117.00$ LFSawcut, asphalt, 3" depthRI-121.85$ LF25574,730.45Sawcut, concrete, per 1" depthRI-133.00$ LFSealant, asphaltRI-142.00$ LF25575,114.00Shoulder, gravel, 4" thickRI-1515.00$ SYSidewalk, 4" thickRI-1638.00$ SY57121,698.0015570.00Sidewalk, 4" thick, demolition and disposalRI-1732.00$ SYSidewalk, 5" thickRI-1841.00$ SYSidewalk, 5" thick, demolition and disposalRI-1940.00$ SYSign, Handicap RI-2085.00$ EachStriping, per stallRI-217.00$ EachStriping, thermoplastic, ( for crosswalk )RI-223.00$ SF285855.00Striping, 4" reflectorized lineRI-230.50$ LFAdditional 2.5" Crushed SurfacingRI-243.60$ SYHMA 1/2" Overlay 1.5" RI-2514.00$ SYHMA 1/2" Overlay 2"RI-2618.00$ SYHMA Road, 2", 4" rock, First 2500 SYRI-2728.00$ SYHMA Road, 2", 4" rock, Qty. over 2500SYRI-2821.00$ SYHMA Road, 4", 6" rock, First 2500 SYRI-2945.00$ SY147566,375.00251,125.0027512,375.00HMA Road, 4", 6" rock, Qty. over 2500 SYRI-3037.00$ SYHMA Road, 4", 4.5" ATBRI-3138.00$ SYGravel Road, 4" rock, First 2500 SYRI-3215.00$ SYGravel Road, 4" rock, Qty. over 2500 SYRI-3310.00$ SYThickened EdgeRI-348.60$ LF2852,451.00SUBTOTAL THIS PAGE:112,853.452,006.0014,826.00(B)(C)(D)(E)Page 5 of 14Ref 8-H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B)(C)PARKING LOT SURFACINGNo.2" AC, 2" top course rock & 4" borrowPL-121.00$ SY2" AC, 1.5" top course & 2.5" base coursePL-228.00$ SY4" select borrowPL-35.00$ SY1.5" top course rock & 2.5" base coursePL-414.00$ SYSUBTOTAL PARKING LOT SURFACING:(B)(C)(D)(E)LANDSCAPING & VEGETATIONNo.Street TreesLA-1Median LandscapingLA-2Right-of-Way LandscapingLA-3Wetland LandscapingLA-4SUBTOTAL LANDSCAPING & VEGETATION:(B)(C)(D)(E)TRAFFIC & LIGHTINGNo.SignsTR-1Street Light System ( # of Poles)TR-2Traffic SignalTR-3Traffic Signal ModificationTR-4SUBTOTAL TRAFFIC & LIGHTING:(B)(C)(D)(E)WRITE-IN-ITEMSSUBTOTAL WRITE-IN ITEMS:STREET AND SITE IMPROVEMENTS SUBTOTAL:124,303.453,046.0064,726.00SALES TAX @ 10%12,430.35304.606,472.60STREET AND SITE IMPROVEMENTS TOTAL:136,733.803,350.6071,198.60(B)(C)(D)(E)Page 6 of 14Ref 8-H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostDRAINAGE (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/DD-126.00$ SY* (CBs include frame and lid)BeehiveD-290.00$ EachThrough-curb Inlet FrameworkD-3400.00$ EachCB Type ID-41,500.00$ Each1015,000.0011,500.0023,000.00CB Type ILD-51,750.00$ EachCB Type II, 48" diameterD-62,300.00$ Each716,100.00 for additional depth over 4' D-7480.00$ FT62,880.00CB Type II, 54" diameterD-82,500.00$ Each for additional depth over 4'D-9495.00$ FTCB Type II, 60" diameterD-102,800.00$ Each for additional depth over 4'D-11600.00$ FTCB Type II, 72" diameterD-126,000.00$ Each for additional depth over 4'D-13850.00$ FTCB Type II, 96" diameterD-1414,000.00$ Each for additional depth over 4'D-15925.00$ FTTrash Rack, 12"D-16350.00$ EachTrash Rack, 15"D-17410.00$ EachTrash Rack, 18"D-18480.00$ EachTrash Rack, 21"D-19550.00$ EachCleanout, PVC, 4"D-20150.00$ EachCleanout, PVC, 6"D-21170.00$ Each2340.00Cleanout, PVC, 8"D-22200.00$ EachCulvert, PVC, 4" D-2310.00$ LFCulvert, PVC, 6" D-2413.00$ LF1672,171.00Culvert, PVC, 8" D-2515.00$ LFCulvert, PVC, 12" D-2623.00$ LFCulvert, PVC, 15" D-2735.00$ LFCulvert, PVC, 18" D-2841.00$ LFCulvert, PVC, 24"D-2956.00$ LFCulvert, PVC, 30" D-3078.00$ LFCulvert, PVC, 36" D-31130.00$ LFCulvert, CMP, 8"D-3219.00$ LFCulvert, CMP, 12"D-3329.00$ LFSUBTOTAL THIS PAGE:33,980.001,500.005,511.00(B)(C)(D)(E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B)(C)Page 7 of 14Ref 8-H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B)(C)DRAINAGE (Continued)Culvert, CMP, 15"D-3435.00$ LFCulvert, CMP, 18"D-3541.00$ LFCulvert, CMP, 24"D-3656.00$ LFCulvert, CMP, 30"D-3778.00$ LFCulvert, CMP, 36"D-38130.00$ LFCulvert, CMP, 48"D-39190.00$ LFCulvert, CMP, 60"D-40270.00$ LFCulvert, CMP, 72"D-41350.00$ LFCulvert, Concrete, 8"D-4242.00$ LFCulvert, Concrete, 12"D-4348.00$ LFCulvert, Concrete, 15"D-4478.00$ LFCulvert, Concrete, 18"D-4548.00$ LFCulvert, Concrete, 24"D-4678.00$ LFCulvert, Concrete, 30"D-47125.00$ LFCulvert, Concrete, 36"D-48150.00$ LFCulvert, Concrete, 42"D-49175.00$ LFCulvert, Concrete, 48"D-50205.00$ LFCulvert, CPE Triple Wall, 6" D-5114.00$ LFCulvert, CPE Triple Wall, 8" D-5216.00$ LFCulvert, CPE Triple Wall, 12" D-5324.00$ LFCulvert, CPE Triple Wall, 15" D-5435.00$ LFCulvert, CPE Triple Wall, 18" D-5541.00$ LFCulvert, CPE Triple Wall, 24" D-5656.00$ LFCulvert, CPE Triple Wall, 30" D-5778.00$ LFCulvert, CPE Triple Wall, 36" D-58130.00$ LFCulvert, LCPE, 6"D-5960.00$ LFCulvert, LCPE, 8"D-6072.00$ LFCulvert, LCPE, 12"D-6184.00$ LFCulvert, LCPE, 15"D-6296.00$ LFCulvert, LCPE, 18"D-63108.00$ LFCulvert, LCPE, 24"D-64120.00$ LFCulvert, LCPE, 30"D-65132.00$ LFCulvert, LCPE, 36"D-66144.00$ LFCulvert, LCPE, 48"D-67156.00$ LFCulvert, LCPE, 54"D-68168.00$ LFSUBTOTAL THIS PAGE:(B)(C)(D)(E)Page 8 of 14Ref 8-H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B)(C)DRAINAGE (Continued)Culvert, LCPE, 60"D-69180.00$ LFCulvert, LCPE, 72"D-70192.00$ LFCulvert, HDPE, 6"D-7142.00$ LFCulvert, HDPE, 8"D-7242.00$ LFCulvert, HDPE, 12"D-7374.00$ LFCulvert, HDPE, 15"D-74106.00$ LFCulvert, HDPE, 18"D-75138.00$ LFCulvert, HDPE, 24"D-76221.00$ LFCulvert, HDPE, 30"D-77276.00$ LFCulvert, HDPE, 36"D-78331.00$ LFCulvert, HDPE, 48"D-79386.00$ LFCulvert, HDPE, 54"D-80441.00$ LFCulvert, HDPE, 60"D-81496.00$ LFCulvert, HDPE, 72"D-82551.00$ LFPipe, Polypropylene, 6"D-8384.00$ LFPipe, Polypropylene, 8"D-8489.00$ LFPipe, Polypropylene, 12"D-8595.00$ LFPipe, Polypropylene, 15"D-86100.00$ LFPipe, Polypropylene, 18"D-87106.00$ LFPipe, Polypropylene, 24"D-88111.00$ LFPipe, Polypropylene, 30"D-89119.00$ LFPipe, Polypropylene, 36"D-90154.00$ LFPipe, Polypropylene, 48"D-91226.00$ LFPipe, Polypropylene, 54"D-92332.00$ LFPipe, Polypropylene, 60"D-93439.00$ LFPipe, Polypropylene, 72"D-94545.00$ LFCulvert, DI, 6"D-9561.00$ LFCulvert, DI, 8"D-9684.00$ LF14011,760.00453,780.00Culvert, DI, 12"D-97106.00$ LF1510160,060.0012513,250.00Culvert, DI, 15"D-98129.00$ LFCulvert, DI, 18"D-99152.00$ LFCulvert, DI, 24"D-100175.00$ LFCulvert, DI, 30"D-101198.00$ LFCulvert, DI, 36"D-102220.00$ LFCulvert, DI, 48"D-103243.00$ LFCulvert, DI, 54"D-104266.00$ LFCulvert, DI, 60"D-105289.00$ LFCulvert, DI, 72"D-106311.00$ LFSUBTOTAL THIS PAGE:171,820.003,780.0013,250.00(B)(C)(D)(E)Page 9 of 14Ref 8-H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B)(C)Specialty Drainage ItemsDitching SD-19.50$ CYFlow Dispersal Trench (1,436 base+)SD-328.00$ LF French Drain (3' depth)SD-426.00$ LFGeotextile, laid in trench, polypropyleneSD-53.00$ SYMid-tank Access Riser, 48" dia, 6' deepSD-62,000.00$ EachPond Overflow SpillwaySD-716.00$ SYRestrictor/Oil Separator, 12"SD-81,150.00$ EachRestrictor/Oil Separator, 15"SD-91,350.00$ EachRestrictor/Oil Separator, 18"SD-101,700.00$ EachRiprap, placedSD-1142.00$ CYTank End Reducer (36" diameter)SD-121,200.00$ EachInfiltration pond testingSD-13125.00$ HRPermeable PavementSD-14Permeable Concrete SidewalkSD-15Culvert, Box __ ft x __ ftSD-16SUBTOTAL SPECIALTY DRAINAGE ITEMS:(B)(C)(D)(E)STORMWATER FACILITIES (Include Flow Control and Water Quality Facility Summary Sheet and Sketch)Detention PondSF-1Each Detention TankSF-2Each Detention VaultSF-3100,000.00$ Each 2200,000.00Infiltration PondSF-4Each Infiltration TankSF-5Each Infiltration VaultSF-6Each Infiltration TrenchesSF-7Each Basic Biofiltration SwaleSF-8Each Wet Biofiltration SwaleSF-9Each WetpondSF-10Each WetvaultSF-11Each Sand FilterSF-12Each Sand Filter VaultSF-13Each Linear Sand FilterSF-14Each Proprietary FacilitySF-15Each Bioretention FacilitySF-16Each SUBTOTAL STORMWATER FACILITIES:200,000.00(B)(C)(D)(E)Page 10 of 14Ref 8-H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B)(C)WRITE-IN-ITEMS (INCLUDE ON-SITE BMPs)WI-1WI-2WI-3WI-4WI-5WI-6WI-7WI-8WI-9WI-10WI-11WI-12WI-13WI-14WI-15SUBTOTAL WRITE-IN ITEMS:DRAINAGE AND STORMWATER FACILITIES SUBTOTAL:205,800.00205,280.0018,761.00SALES TAX @ 10%20,580.0020,528.001,876.10DRAINAGE AND STORMWATER FACILITIES TOTAL:226,380.00225,808.0020,637.10(B) (C) (D) (E)Page 11 of 14Ref 8-H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostConnection to Existing WatermainW-12,000.00$ EachDuctile Iron Watermain, CL 52, 4 Inch DiameterW-250.00$ LFDuctile Iron Watermain, CL 52, 6 Inch DiameterW-356.00$ LFDuctile Iron Watermain, CL 52, 8 Inch DiameterW-460.00$ LFDuctile Iron Watermain, CL 52, 10 Inch DiameterW-570.00$ LFDuctile Iron Watermain, CL 52, 12 Inch DiameterW-680.00$ LFGate Valve, 4 inch DiameterW-7500.00$ EachGate Valve, 6 inch DiameterW-8700.00$ EachGate Valve, 8 Inch DiameterW-9800.00$ EachGate Valve, 10 Inch DiameterW-101,000.00$ EachGate Valve, 12 Inch DiameterW-111,200.00$ EachFire Hydrant AssemblyW-124,000.00$ EachPermanent Blow-Off AssemblyW-131,800.00$ EachAir-Vac Assembly, 2-Inch DiameterW-142,000.00$ EachAir-Vac Assembly, 1-Inch DiameterW-151,500.00$ EachCompound Meter Assembly 3-inch DiameterW-168,000.00$ EachCompound Meter Assembly 4-inch DiameterW-179,000.00$ EachCompound Meter Assembly 6-inch DiameterW-1810,000.00$ EachPressure Reducing Valve Station 8-inch to 10-inchW-1920,000.00$ EachWATER SUBTOTAL:SALES TAX @ 10%WATER TOTAL:(B) (C) (D) (E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR WATERQuantity Remaining (Bond Reduction) (B)(C)Page 12 of 14Ref 8-H Bond Quantity WorksheetSECTION II.d WATERUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
CED Permit #:########ExistingFuture PublicPrivateRight-of-WayImprovementsImprovements(D) (E)DescriptionNo. Unit PriceUnitQuant.CostQuant.CostQuant.CostQuant.CostClean OutsSS-11,000.00$ Each88,000.00Grease Interceptor, 500 gallonSS-28,000.00$ EachGrease Interceptor, 1000 gallonSS-310,000.00$ EachGrease Interceptor, 1500 gallonSS-415,000.00$ EachSide Sewer Pipe, PVC. 4 Inch DiameterSS-580.00$ LFSide Sewer Pipe, PVC. 6 Inch DiameterSS-695.00$ LF16015,200.00Sewer Pipe, PVC, 8 inch DiameterSS-7105.00$ LF2500262,500.0016717,535.00Sewer Pipe, PVC, 12 Inch DiameterSS-8120.00$ LFSewer Pipe, DI, 8 inch DiameterSS-9115.00$ LFSewer Pipe, DI, 12 Inch DiameterSS-10130.00$ LFManhole, 48 Inch DiameterSS-116,000.00$ Each1272,000.00Manhole, 54 Inch DiameterSS-136,500.00$ EachManhole, 60 Inch DiameterSS-157,500.00$ EachManhole, 72 Inch DiameterSS-178,500.00$ EachManhole, 96 Inch DiameterSS-1914,000.00$ EachPipe, C-900, 12 Inch DiameterSS-21180.00$ LFOutside DropSS-241,500.00$ LSInside DropSS-251,000.00$ LSSewer Pipe, PVC, ____ Inch DiameterSS-26Lift Station (Entire System)SS-27LSSANITARY SEWER SUBTOTAL:334,500.0040,735.00SALES TAX @ 10%33,450.004,073.50SANITARY SEWER TOTAL:367,950.0044,808.50(B) (C) (D) (E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR SANITARY SEWERQuantity Remaining (Bond Reduction) (B)(C)Page 13 of 14Ref 8-H Bond Quantity WorksheetSECTION II.e SANITARY SEWERUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
Planning Division |1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200Date:Name:Project Name: PE Registration No:CED Plan # (LUA):Firm Name:CED Permit # (U):Firm Address:Site Address:Phone No.Parcel #(s):Email Address:Project Phase: Site Restoration/Erosion Sediment Control Subtotal (a)Existing Right-of-Way Improvements Subtotal (b)(b)504,683.80$ Future Public Improvements Subtotal(c)3,350.60$ Stormwater & Drainage Facilities (Public & Private) Subtotal(d)(d)472,825.10$ (e)(f)Site RestorationCivil Construction PermitMaintenance Bond196,171.90$ Bond Reduction2Construction Permit Bond Amount 3Minimum Bond Amount is $10,000.001 Estimate Only - May involve multiple and variable components, which will be established on an individual basis by Development Engineering.2 The City of Renton allows one request only for bond reduction prior to the maintenance period. Reduction of not more than 70% of the original bond amount, provided that the remaining 30% willcover all remaining items to be constructed. 3 Required Bond Amounts are subject to review and modification by Development Engineering.* Note: The word BOND as used in this document means any financial guarantee acceptable to the City of Renton.** Note: All prices include labor, equipment, materials, overhead and profit. 425-392-0250nmecum@encompasses.netSkyhorse Short Plat17-000550163XX SE 132nd Street, Renton, WA 980591457500023, 1323059053FOR APPROVAL########165 NE Juniper Street #2011,250,159.54$ P (a) x 100%SITE IMPROVEMENT BOND QUANTITY WORKSHEET BOND CALCULATIONS10/27/2020Nicole Mecum39897Encompass Engineering & SurveyingR((b x 150%) + (d x 100%))S(e) x 150% + (f) x 100%Bond Reduction: Existing Right-of-Way Improvements (Quantity Remaining)2Bond Reduction: Stormwater & Drainage Facilities (Quantity Remaining)2T(P +R - S)Prepared by:Project InformationCONSTRUCTION BOND AMOUNT */**(prior to permit issuance)EST1((b) + (c) + (d)) x 20%-$ MAINTENANCE BOND */**(after final acceptance of construction)20,308.75$ 504,683.80$ 1,229,850.79$ 20,308.75$ -$ 472,825.10$ -$ Page 14 of 14Ref 8-H Bond Quantity WorksheetSECTION III. BOND WORKSHEETUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/27/2020
Skyhorse Short Plat Technical Information Report
Appendix F
Facility Summaries