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Home My WebLink About04016 - Technical Information Report NE 16TH ST – JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS PROJECT Design Report Prepared for: City of Renton Public Works Department – Surface Water Utility 1055 South Grady Way Renton, WA 98507 Prepared by: 3131 Elliott Ave, Suite 400 Seattle, WA 98121 206-286-1640 June 2020 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report _______________________________________________________________________________ June 2020 KPG i Table of Contents 1. Introduction ....................................................................................................................... 1 2. Basin Description ................................................................................................................ 3 3. Site Description................................................................................................................... 3 3.1 EXISTING AND PROPOSED SITE CONDITIONS .................................................................................... 3 3.2 SOILS ........................................................................................................................................ 4 3.3 THRESHOLD DISCHARGE AREAS ..................................................................................................... 4 3.4 OFFSITE ANALYSIS ..................................................................................................................... 10 4. Stormwater Requirements Analysis ................................................................................... 14 5. Alternatives Considered .................................................................................................... 21 6. Design Analysis ................................................................................................................. 21 6.1 BIORETENTION DESIGN .............................................................................................................. 21 6.2 FILTERRA UNIT SIZING ............................................................................................................... 23 6.3 PERMEABLE PAVEMENT DESIGN .................................................................................................. 23 6.4 CONVEYANCE SYSTEM DESIGN .................................................................................................... 23 7. Water Quality Benefit ....................................................................................................... 29 8. Cost Estimate .................................................................................................................... 30 9. Proposed Schedule ........................................................................................................... 30 10. Operation & Maintenance ................................................................................................. 30 FIGURES Figure 1 – Vicinity Map ............................................................................................................................. 2 Figure 2 – Existing Conditions Map .......................................................................................................... 6 Figure 3 – Offsite Analysis Map .............................................................................................................. 13 Figure 4 – Facility Basin Map .................................................................................................................. 25 Figure 5 – Project Areas Map………………………………………………………………………………………………Appendix A TABLES Table 1 – Project Areas .......................................................................................................................... 14 Table 2 – Flow Control Exception ........................................................................................................... 16 Table 3 – Bioretention Sizing for On-Site BMPs .................................................................................... 22 Table 4 – Runoff Treatment Benefit ...................................................................................................... 29 Table 5 – Flow Control Benefit .............................................................................................................. 29 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report _______________________________________________________________________________ June 2020 KPG ii APPENDICES A – Project Area Maps B – Stormwater Facility Design Calculations C – Runoff Treatment and Flow Control Ratio Calculations and Flow Control Threshold Calculation D – Geotechnical Report E – Cost Estimate Details F – Design Plans G – Operation and Maintenance Information H – Offsite Analysis Tables City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 1 KPG 1. Introduction This report documents the stormwater design of the City of Renton (Renton) NE 16th St – Jefferson Ave NE Stormwater Green Connections Project. The project will install water quality treatment facilities and on-site flow control best management practices (BMPs) along NE 16th Street between Harrington Avenue NE and Jefferson Avenue NE, and Jefferson Avenue NE between NE 12th Street and NE 16th Street. See Figure 1. Water quality treatment facilities will consist of bioretention cells (both infiltrating and non-infiltrating) and Filterra media filtration units. Concrete curb and gutter and storm drainage conveyance piping will be constructed to convey stormwater runoff to and from the treatment facilities. On-site flow control BMPs to be installed will consist of infiltrating bioretention cells where feasible and pervious concrete sidewalks. The design and construction of the stormwater retrofit elements of the project is being funded by the State of Washington Department of Ecology (Ecology) Water Quality Combined Financial Assistance Program, through Agreement No. WQC-2019-Renton-00067 (Grant Agreement). This report is intended to satisfy the Design Report submittal requirement described in Task 2D of the Grant Agreement scope of work. Outside of the Grant Agreement scope of work, the project will also create planter strips with amended soil, grass, and street trees to increase infiltration and evapotranspiration within the street right-of-way, existing water mains will be replaced, and an irrigation system will be installed. The Grant Agreement specifically states that “the construction project will include installation of low impact development facilities to mitigate runoff from approximately two acres of pollution generating impervious surfaces.” In addition to construction of bioretention cells, permeable concrete sidewalks and media filter units mentioned above, a portion of this this goal will be achieved by reducing the amount of pollution-generating impervious surface within the project area. Additional construction funding is also provided by the King County 2020 Sub-Regional Opportunity Fund. The project elements have been designed in accordance with the 2017 City of Renton Surface Water Design Manual (RSWDM), which is based on the 2016 King County Surface Water Design Manual. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 2 KPG Figure 1 – Vicinity Map City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 3 KPG 2. Basin Description The project is located within the Lower May Creek and Johns Creek drainage basins. Both creeks discharge into Lake Washington near its southern end. Under historic conditions, based on surface topography it appears that runoff from the entire site area flowed southwest, in what is now known as the Johns Creek basin. However, since the area was historically forested and due to recessional outwash deposits, most runoff probably infiltrated prior to reaching downstream receiving waters. The project area was developed to existing conditions in the early 1940s. Based on record drawings, it does not appear that any piped storm drainage systems were installed with the original development. The existing 36-inch storm drainage system along SE 12th Street (Johns Creek Basin) was installed in 1982, and appears to have replaced an earlier 12-inch system. The 18-inch piped drainage system on Edmonds Avenue NE, which directs a portion of the project area runoff north to May Creek, was installed in 1966. Both Johns Creek and May Creek have Category 5 303(d) listings for fecal coliform bacteria, oxygen and temperature. Johns Creek has experienced five temporary summer closures to the public recreational swimming beaches between 2004 and 2014 due to high bacteria count. Under proposed conditions, the project site’s existing division between the Lower May Creek and Johns Creek basins will not change, with the project area north of the high point along Jefferson Avenue draining north to May Creek, and the area south of the high point draining south to Johns Creek. With installation of water quality treatment facilities and on-site stormwater management BMPs, the quality of runoff within both drainage basins will be improved, and the quantity of runoff decreased. Soils within the project site are discussed in Section 3.2. The Natural Resources Conservation Service online mapping (websoilsurvey.nrcs.usda.gov) shows the project site as Arents- Alderwood, a till soil classification with moderately rapid permeability and a slowly permeable till substratum, and Indianola loamy sand, an outwash soil with high permeability. The soils report is provided in Appendix D. Both basins within the project area have suburban residential land uses, including single and multi-family housing, schools, parks and commercial areas. 3. Site Description 3.1 Existing and Proposed Site Conditions The project area consists of public right-of-way along NE 16th Street, from Harrington Avenue NE to Jefferson Avenue NE, and Jefferson Avenue NE, from NE 16th Street to NE 12th Street. Within the project area, land cover is mostly impervious, consisting of the roadway, sidewalk, lawn, and adjacent paved and gravel driveways. See Figure 2. Topography is generally flat but slopes from City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 4 KPG east to west along NE 16th Street. A high point exists along Jefferson Avenue NE approximately 500 feet south of NE 16th Street, from which the ground slopes down to the north and south. Existing site conditions consist of two-lane residential streets with asphalt roadway pavement 25 to 33 feet in width and 4-foot wide concrete sidewalks on both sides installed flush with the roadway (no curbs). The opposing cross-slopes of the asphalt pavement and concrete sidewalk results in a gutter that directs runoff west along NE 16th Street to catch basins at Index Avenue NE and Harrington Avenue NE, east along NE 16th Street and north along Jefferson Avenue NE to catch basins at the intersection of those two streets (a low point), and south along Jefferson Avenue NE to catch basins at NE 12th Street. In most areas private landscaping (grass and shrubs) or driveways occupy the area between the back of sidewalk and the right-of-way line. The proposed site conditions will maintain the two-lane residential streets, and curbs and gutters will be added to convey roadway runoff to 12 bioretention cells and 4 Filterra units. The existing flush sidewalks will be replaced with new 5-foot wide pervious concrete sidewalks constructed at the edges of the right-of-way, which will allow for creation of a continuous 4-foot planter strip on the west side of Jefferson Avenue NE (which has a 50-foot right-of-way) and a 6- foot planter strip on the south side of NE 16th Street (which has a 60-foot right-of-way). Curb bulbs will be used at bioretention cell locations to provide a wider planter by removing on-street parking in those areas. The four Filterra units are proposed at locations where bioretention is not feasible due to utility conflicts or inadequate space within the planter strip. 3.2 Soils Subsurface exploration performed for this project revealed fill soils for 2 to 6 feet over recessional outwash and glacial till deposits. Nine test pits were performed by HWA GeoSciences Inc. to evaluate the potential for stormwater infiltration along the project length. No groundwater seepage was observed at the site, however some of the borings has oxidation staining 5 feet below ground surface which suggests that perched water may develop seasonally. Due to the presence of glacial till near the surface, infiltrating bioretention was determined to not be feasible between Stations 17+00 and 24+00 on NE 16th Street and between Stations 70+00 and 81+00 on Jefferson Avenue NE. Three small-scale pilot infiltration tests (PITs) were performed to determine design infiltration rates in areas identified as having potential for infiltration. A design infiltration rate of 4 inches per hour was determined for two bioretention cells proposed in outwash soils on NE 16th Street between Harrington Avenue NE and Index Avenue NE. A design infiltration rate of 3.7 inches per hour was determined for a third bioretention cell located on Jefferson Avenue NE near NE 12th Street. For permeable sidewalks proposed in areas underlain with glacial till, HWA GeoSciences Inc. recommended a design infiltration rate of 0.3 inch per hour, with an underdrain system to convey excess stormwater to an appropriate outlet or stormwater system. Bioretention cells in areas with glacial till soils will be constructed with underdrains. The geotechnical report is provided in Appendix D. 3.3 Threshold Discharge Areas The project area consists of two Threshold Discharge Areas (TDAs). TDAs are defined on Page 1- 9 of the RSWDM as on-site areas draining to a single natural discharge location or multiple City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 5 KPG natural discharge locations that combine within ¼ mile downstream from the site. The two project TDAs and their downstream paths are shown on Figure 3, and are described as follows: TDA A consists of the northern part of project site that is located within the Lower May Creek drainage basin. This area is 2.27 acres and consists of NE 16th Street from Harrington Avenue NE to Jefferson Avenue NE, and approximately 430 linear feet of Jefferson Avenue NE south of NE 16th Street. Runoff from this area is collected by a piped drainage system that flows west from the project area along NE 16th Street. TDA B consists of the southern part of the project site that is located within the Johns Creek drainage basin. This area is 1.19 acres and consists of approximately 925 linear feet of Jefferson Avenue NE north of NE 12th Street. Stormwater runoff from this area is collected by a piped drainage system that flows west from the project area along NE 12th Street. ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN TAI FUNG LLC NE 16TH ST INDEX AVE NEHARRINGTON AVE NERENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST PLAN PLAN FIGURE 2. EXISTING CONDITIONS 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 2A TDA A TDA A CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NEPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 2B TDA A FIGURE 2. EXISTING CONDITIONS SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE PLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 2C TDA A FIGURE 2. EXISTING CONDITIONS TDA A TDA B FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH ST••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 2D TDA B FIGURE 2. EXISTING CONDITIONS TDA B City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 10 KPG 3.4 Offsite Analysis An offsite analysis has been performed for the project following Tasks 1 - 5 as described on Pages 2-12 through 2-15 of the RSWDM. Tasks 1 and 2 require review of a study area extending one mile downstream from the site. Tasks 3 through 5 are required to address downstream drainage systems extending to a point where the site constitutes less than 15% of the total tributary drainage area, but not less than ¼ mile downstream from the project site. Task 1. Study Area Definition and Maps Figure 3 was developed from City of Renton GIS data and shows the project site area, threshold discharge areas, upstream basin areas, and downstream drainage paths extending one mile downstream from the project site. The upstream areas consist of portions of the residential area immediately adjacent to the project site as well as a larger, 15-acre drainage basin located north of NE 16th Street that includes the Meadow Crest Early Learning Center, Meadow Crest Playfield, North Highlands Neighborhood Center, Hillcrest Terrace Apartments, and portions of Harrington Avenue NE and Index Avenue NE. These areas were identified to include offsite flows that run on to the site for conveyance and facility sizing. The Meadow Crest Early Learning Center site was redeveloped in 2012 and contains on-site bioretention and infiltration trench systems designed to infiltrate all runoff. An overflow from the on-site drainage systems connects to the existing roadway drainage system at the intersection of Index Avenue NE and NE 16th Street. Runoff from the Hillcrest Terrace Apartments and North Highlands Community Center connects to the NE 16th Street storm drainage system near the western edge of the Meadow Crest Playfield, approximately 300 feet west of Jefferson Avenue NE. Task 2. Resource Review The following documents were reviewed: · Basin Plans – May Creek Basin Action Plan prepared by King County, April 2001. The basin plan does not contain specific recommendations that would apply directly to this project. · Floodplain/floodway maps (on COR Maps) – A mapped floodway and floodplain exist on May Creek. · Sensitive areas maps (on COR Maps) o Seismic Hazard: a seismic hazard area is mapped within the May Creek ravine o Wellhead Protection: a wellhead protection zone exists northwest of the intersection of NE 16th Street and Edmonds Avenue NE o Streams: May Creek, at the downstream end of the 1-mile drainage path from TDA A. Johns Creek is outside of the 1-mile study area o Coal mines: no coal mines are mapped within the study area · Master drainage plan: Sunset Area Surface Water Master Plan, City of Renton, April 2011. This project is included in the plan. · King County Soils Survey (via USDA Web Soil Survey): The following soil map units exist within the study area: Alderwood gravelly sandy loam; Arents Alderwood material; City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 11 KPG Arents, Everett material; Everett very gravelly sandy loam; Indianola loamy sand, Puyallup fine sandy loam; Ragnar, Indianola association; Shalcar muck; urban land · Wetlands inventory (on COR Maps): no wetlands are mapped along either of the 1-mile downstream drainage paths · Department of Ecology 303(d) list of polluted waters (online): non 303(d) listings were found within the study area. However, 303(d) listings do exist further downstream along May Creek and Johns Creek as discussed in Chapter 2 of this report. · City of Renton Erosion and Landslide Maps (on COR Maps) o Erosion Hazard: the downstream ends of both drainage paths (near 1 mile downstream) are both mapped as erosion hazard areas o Landslide Hazard: a landslide hazard area exists in the vicinity of Edmonds Avenue NE between NE Sunset Boulevard and NE 12th Street, along NE Sunset Boulevard near I-405 and in the May Creek ravine Task 3. Field Inspection The downstream drainage system within ¼ mile downstream from the site consists of City- maintained, piped drainage systems in fully-developed residential areas. Since no problems were identified within the downstream drainage systems as part of Task 2, Resource Review, and the project will have a negligible impact on peak stormwater flows and volumes, a limited field inspection was performed to verify the downstream system and verify existing on-line mapping information as described in Task 4. Task 4. Drainage System Description and Problem Descriptions The following downstream drainage system descriptions were developed by reviewing drainage system information available from the on-line City of Renton GIS mapping application, COR Maps, and research of drainage complaint records. Field inspection of these systems was limited because the downstream paths for both drainage systems are City-maintained. Referenced downstream locations (A1, A2, etc.) are shown on Figure 3. See Appendix H for the Offsite- Analysis Drainage Table worksheet. TDA A The downstream flow path for TDA A begins in a storm drain manhole at the intersection of NE 16th Street and Harrington Avenue NE. From this manhole, a 12-inch reinforced concrete pipe (A1) conveys TDA A runoff southwest and west for 670 feet before upsizing to a 15-inch concrete pipe (A2) 40 feet east of the intersection of Edmonds Avenue NE. The system turns north at Edmonds Avenue NE as a 15-inch concrete pipe (A3) that continues to a point ¼-mile downstream from the project site, at approximately NE 18th Street. Beyond this point, the drainage system continues north along Edmonds Avenue NE to an outfall to May Creek north of NE 27th Street. No drainage complaints have been recorded in COR Maps within this downstream drainage system. Existing problems or problems developing as a result of this project are unlikely. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 12 KPG TDA B The downstream flow path for TDA B begins in a storm drain manhole at the intersection of NE 12th Street and Jefferson Avenue NE. From this point a 36-inch concrete pipe (B1) travels west for 145 feet before changing pipe material to corrugated metal (B2), then continues west for another 1,162 feet to a point ¼ mile downstream from the project site, near Edmonds Avenue NE. Beyond this point, the drainage system turns south at Edmonds Avenue NE, then west on NE Sunset Way, to an outfall to Johns Creek south of Gene Coulon Memorial Beach Park. No drainage complaints have been recorded in COR Maps within this downstream drainage system. Existing problems or problems developing as a result of this project are unlikely. Task 5. Mitigation of Existing or Potential Problems No downstream problems were identified that will require mitigation. As a stormwater retrofit project, this project is expected to improve the quality and reduce the quantity of stormwater runoff leaving the project site. FIGURE 3. PROJECT BASIN AND DOWNSTREAM MAP NE 16THE STREET AND JEFFERSON AVENUE NE STORMWATER GREEN CONNECTIONS PROJECT 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design LOWER MAY CREEK BASIN JOHNS CREEK BASIN HONEY D E W C R E E K MAY CREEKSOUTH KENNYDALE BASIN City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 14 KPG 4. Stormwater Requirements Analysis The project has been designed in accordance with the 2017 City of Renton Surface Water Design Manual (RSWDM), which is based on the 2016 King County Surface Water Design Manual (KCSWDM) with some minor modifications to reflect Renton-specific requirements. The 2016 KCSWDM has been determined by Ecology to be equivalent to the 2014 Stormwater Management Manual for Western Washington (SWMMWW). The project contains two Threshold Discharge Areas (TDAs), as described in Chapter 2 of this report and shown on Figure 2 and Figure 3. The relevant project areas for determining the applicability of the stormwater management requirements of the RSWDM are shown in Table 1 below and graphically on Figure 5 in Appendix A. The thresholds and applicability of each of the nine Core Requirements is addressed in the following sections. Table 1 – Project Areas TDA A TDA B TOTAL Site Area1 102.237 sf 50,400 sf 152,727 sf Existing Impervious Surface 80,305 sf 43,684 sf 123,989 sf % Existing Impervious Surface 79 % 87 % 81 % New Impervious (total) 9,552 sf 6,216 sf 15,768 sf New Impervious as permeable sidewalk (portion of total) 6,335 sf 3,456 sf 9,791 sf New PGIS2 2,280 sf 2,977 sf 5,257 sf Replaced Impervious Surface 47,172 sf 36,762 sf 83,934 sf Total New plus Replaced Impervious Surface 56,724 sf 42,978 sf 99,702 sf Existing Condition PGIS2,3 1.90 ac Proposed Condition PGIS 1.72 ac Reduction of PGIS2,4 0.18 ac Proposed Condition Treatment Area PGIS 1.49 ac Total mitigation of PGIS by project 1.78 ac Notes: 1. Site Area = Full right-of-way width for length of project + driveway/intersection work. 2. PGIS = Pollution-generating impervious surface. 3. Existing vs Proposed condition PGIS comparison is for project area within NE 16th Street and Jefferson Avenue NE. The project is categorized as a transportation, redevelopment project since the existing impervious surface is greater than 35%. As indicated in Table 1, the project’s new and/or replaced impervious surface coverage exceeds 2,000 square feet, the project requires full City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 15 KPG demonstration of compliance with all nine Core Requirements and six Special Requirements per the City of Renton Surface Water Design Manual. Core Requirement #1: Discharge at Natural Location (SWMMWW MR #4: Preservation of Natural Drainage Systems Outfalls) The drainage design will maintain existing drainage patterns and outflow locations (where runoff leaves the site) to existing piped conveyance systems in both TDAs. New drainage structures will be installed as needed along the project site that will connect to these systems. The divide between the two TDAs, which is defined by the high point along Jefferson Avenue NE, will not be changed. Core Requirement #2: Offsite Analysis An analysis of upstream drainage areas and downstream conditions is included in Section 3.4 of this report. Core Requirement #3: Flow Control (SWMMWW MR #7: Flow Control) Based on the City’s Flow Control Applications Map, the majority of the project site is within a Peak Rate Flow Control (Existing Site Conditions) area. However, based on TDA A draining to May Creek, it appears this TDA is actually located within the Flow Control Duration Standard (Forested Conditions) area. Therefore, the Flow Control Duration Standard applies and the predeveloped condition is modeled as historic, forested conditions. Since some of the project soils within the TDA A contains outwash soils, target surfaces within that area is modeled using hydrologic soil group A/B (forested). The flow control target surfaces for the portion of the project within the Flow Control Duration Standard area (Lower May Creek Basin, TDA A) consists of new impervious and pervious surfaces only, because although the project is a transportation redevelopment project, it adds less than 50% to existing impervious surface areas, so replaced impervious surfaces are not targeted for flow control (RSWDM Page 1-42). The flow control target surfaces for the portion of the project within the Peak Rate Flow Control Standard area (Johns Creek Basin, TDA B) consists of new impervious and pervious surfaces only (RSWDM Page 1-40). Following is an analysis of the flow control thresholds as applied to each TDA. In performing this analysis, the following BMP sizing credits from Table 1.2.9.A on Page 1-84 of the RSWDM were utilized: · Permeable pavement: New impervious surfaces consisting of permeable pavement in areas with glacial till soil were modeled as ½ grass and ½ impervious. · Full infiltration: New impervious surfaces consisting of permeable pavement in areas with outwash soil were modeled to infiltrate 100% of the WWHM runoff file; therefore these areas have been removed from the target surface area. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 16 KPG Table 2 summarizes the analysis to determine if either TDA is required to construct a flow control facility: Table 2 – Flow Control Exception TDA A TDA B Total New Impervious Surface 9,552 sf 7,095 sf 0.22 ac 0.163 ac Fully infiltrated new permeable sidewalk (in areas of outwash soil) subtracted from total new impervious 3,447 sf 0.08 ac 0 sf 0 ac Total Target Surface Area 6,105 sf 6,216 sf 0.141 ac 0.163 ac New permeable sidewalks modeled as ½ grass (in areas with glacial till soils) 2,924 sf 0.067 ac 2,733 sf 0.063 ac Modeled predevelopment condition1 Historical conditions 0.02 ac Forest (A/B) 0.0121 ac Forest (C) Existing conditions 0.143 ac Lawn (C) Modeled developed condition1 0.107 ac Impervious 0.034 ac Lawn (C) 0.132 ac Impervious 0.032 ac Lawn (C) Existing Condition 100-year peak flow (cfs) 1 0.0091 cfs 0.071 cfs Proposed Condition (Impervious) 100-year peak flow (cfs) 1 0.10 cfs 0.11 cfs Increase in 100-year peak flow (cfs) 0.09 cfs 0.04cfs Is the increase in 100-year peak flow greater than 0.15 cfs using 15-minute time steps? No, meets Exception 3 for Flow Control Duration Standard Areas (RSWDM Page 1-43) No, meets Exception 1 for Peak Rate Flow Control Standard Areas (RSWDM Page 1-40) Notes: 1. See Appendix C for flow control threshold calculations. As shown in Table 2, TDA A and TDA B have less than 0.15 cfs increase in 100-year peak runoff rates; therefore flow control facilities are not required for either TDA. Core Requirement #4: Conveyance System In accordance with the Renton SWDM, new pipe systems are required to be designed with sufficient capacity to convey and contain the 25-year peak flow. In addition, overflows resulting from the 100-year runoff event will be analyzed to verify that any such overflows will not create or aggravate a severe flooding problem or severe erosion problem. Conveyance sizing calculations have been performed using XP-Storm software, as documented in Section 6.4 and Appendix B of this report. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 17 KPG Core Requirement #5: Erosion and Sediment Control (SWMMWW MR #2: Construction Stormwater Pollution Prevention Following is a discussion of how each of the 13 erosion and sediment control (ESC) and Stormwater Pollution Prevention and Spill (SWPPS) measures of the RSWDM have been considered in development of the project’s ESC plans and project specifications: ESC Measures: 1. Clearing Limits Due to the project location within existing residential streets, clearing is limited to removal of ornamental vegetation within the public right-of-way required for sidewalk construction. Clearing limits are shown on the project’s Site Preparation and TESC plans. 2. Cover Measures Soils will be exposed within the project area following removal of pavement and prior to construction of new roadway pavement, sidewalks and ramps. Disturbed soils will be stabilized according to the time period set forth for wet and dry seasons, with temporary or permanent cover measures. 3. Perimeter Protection Perimeter protection is not applicable to much of the project site because the roadway elevation is lower than adjacent properties in most areas. Runoff during construction will continue to flow along the roadway gutter lines towards existing catch basins located at the intersections of NE 16th Street and Harrington Avenue NE, NE 16th Street and Jefferson Avenue NE, and NE 12th Street and Jefferson Avenue NE. Silt fence will be used if construction conditions exist where runoff from disturbed areas has the potential to flow onto adjacent properties. 4. Traffic Area Stabilization Due to the project area’s location within existing streets, it is not practical to construct a stabilized construction entrance or wheel wash. Dust generation and vehicle tracking of sediment will be controlled by limiting traffic movement across unstabilized surfaces and cleaning streets subject to tracking of sediment by vehicles. The adjacent roadways impacted by construction shall be cleaned at the end of each workday, or more frequently if needed, such as during wet weather. 5. Sediment Retention Due to the project site’s location within existing developed streets resulting in limited soil exposure at any given time, sediment ponds and traps are not proposed. Catch basin inlet protection inserts will be utilized in all catch basins located downstream of ground disturbance areas. However, it will be the contractor’s responsibility to maintain compliance with turbidity limits required by the Construction Stormwater General Permit, and therefore will be required to install additional sediment retention facilities if needed to achieve these standards. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 18 KPG 6. Surface Water Collection Surface water collection within the project area will utilize the existing thickened edge gutter lines to the extent possible. Following pavement removal, the grade of the roadway subgrade will cause surface water to continue to collect and travel along these flowlines. Depending on the duration of exposure and season, temporary stabilization of these flowlines with rock and check dams may needed in two areas of the project site that have steeper roadway grades: NE 16th Street between Harrington Avenue NE and Index Avenue NE and Jefferson Avenue NE between NE 12th Street and NE 13th Street. 7. Dewatering Control The groundwater elevation within the project area is below all planned excavations so dewatering is unlikely to be needed. However, if dewatering is needed, discharges will be tested to evaluate what treatment components, if any, will need to be added to the dewatering system. 8. Dust Control Depending on weather conditions, surface protections such as mulching and surface watering will be used to control the wind transport of sediment. 9. Flow Control No flow control facilities are required for the site during or following construction because the project area’s imperviousness will not change significantly as a result of the project. 10. Control Pollutants The primary pollutants identified for the construction phase of this project include removed asphalt and concrete pavement, new cement and asphalt materials for roadway and sidewalk construction, and fuel for construction equipment. The contractor will be required to handle construction materials in a way that does not cause contamination to stormwater. The contractor will also be required to prepare a project Spill Prevention, Control and Countermeasures (SPCC) plan in accordance with Section 1-07.15 of the WSDOT Standard Specifications. 11. Protect Existing and Proposed Stormwater Facilities and On-site BMPs The project TESC plans require catch basin inserts for existing catch basins and for new catch basins as they are installed. Project Special Provisions for construction of bioretention cells and Filterra units require protection of these facilities from sediment laden runoff until the site has stabilized. 12. Maintain Protective BMPs It will be the contractor’s responsibility to maintain protective BMPs as required to comply with the Construction Stormwater General Permit. 13. Manage the Project It will be the contractor’s responsibility to coordinate construction activities relative to ESC concerns, and maintain and update BMPs as appropriate. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 19 KPG SWPPS Measures: The SWPPS measures required by the RSWDM are addressed on this project in part by the requirement of the contractor to prepare and maintain a project-specific Spill Prevention, Control and Countermeasures (SPCC) plan in accordance with Section 1-07.15 of the WSDOT Standard Specifications. In addition, a draft Construction Stormwater Pollution Prevention Plan (SWPPP) will be prepared prior to construction that consists of ESC plans and a written narrative per the Department of Ecology’s SWPPP template. This document addresses both the project’s ESC and SWPPS measures. It will be the responsibility of the selected construction contractor to modify and complete the SWPPP based on the proposed construction approach and designate a Certified Erosion and Sediment Control Lead (CESCL) to monitor construction stormwater and modify the SWPPP based on site conditions and construction activities. It will be the responsibility of the contractor’s CESCL to ensure site discharges are in accordance with the State of Washington Construction Stormwater General Permit. Core Requirement #6: Maintenance and Operations (SWMMWW MR #9 Operation and Maintenance) Since this is a public project, all drainage facilities will be maintained by the City of Renton in accordance with the City’s operation and maintenance procedures. Operation and maintenance information specific to the BMPs proposed for this project can be found in Appendix G. Core Requirement #7: Financial Guarantees and Liabilities (SWMMWW Optional Guidance #1 : Financial Liability) As a public project, financial guarantee and liability requirements are not applicable. Core Requirement #8: Water Quality (SWMMWW MR #6: Runoff Treatment) Water Quality Treatment is required for all projects to treat runoff from new and replaced pollution-generating impervious and pervious surfaces targeted for treatment. However, as a transportation redevelopment project, this project is exempt from the requirement to provide water quality facilities per Exemption 2 to Core Requirement #8 (Page 1-64 of the RSWDM) because within each TDA, the total new impervious surface is less than 50% of the existing impervious surfaces, less than 5,000 square feet of new PGIS is created, and less than ¾ acre of new PGPS is created. The grant-funded project will retrofit 1.49 acres of PGIS with water quality treatment. Water quality treatment facilities include 12 bioretention cells and 4 Filterra units sized to meet the Enhanced Basic WQ standard. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 20 KPG Core Requirement #9: On-Site BMPs (SWMMWW MR #5: On-site Stormwater Management) All proposed projects, including redevelopment projects, must provide on-site BMPs when more than 2,000 square feet of new plus replaced impervious surfaces are created. Target surfaces for application of Core Requirement #9 include new impervious surfaces, new pervious surfaces, and replaced impervious surfaces that are not already mitigated with an approved on-site BMP or flow control facility. The on-site BMP evaluation for this project was performed in accordance with the “small road improvement and urban road improvement projects BMP requirements” in Section 1.2.9.3.2 of the Renton SWDM, as follows: · In areas of the project with outwash soils, bioretention will be used for the roadway and driveway impervious surfaces, and permeable pavement will be used for sidewalks. · In areas of the project with glacial till soils, bioretention is considered infeasible as an On-Site BMPs for Core Requirement #9 because the project geotechnical engineer has determined that the measured infiltration rate does not exceed 0.3 inch per hour (see geotechnical report in Appendix D). Therefore, Infeasibility Criterion #21 on Page C-67 of the RSWDM is met. In these areas, bioretention will be used with underdrains as a water quality treatment BMP only. · In areas of the project with glacial till soils, permeable pavement for sidewalks has been determined to be feasible and is proposed to be used. · In all areas of the project, permeable pavement is not required for replaced pollution- generating impervious surfaces because Infeasibility Criterion #26 on Page C-79 of the RSWDM is met. Special Requirement #1: Other Adopted Area-Specific Requirements The project is within the area covered by the April 2011 Sunset Area Surface Water Master Plan, which was adopted by Renton City Council on June 13, 2011. This document included a Revised Sunset Area Flow Control Strategy, which applies to projects in the Johns Creek drainage basin. The revised flow control strategy would allow projects that satisfied on-site BMP requirements within the project area and that did not increase net effective impervious surface areas above conditions in 2011, to satisfy additional flow control requirements off-site using excess capacity the Sunset Sub-Regional Stormwater Facility constructed with the redevelopment of the Sunset Terrace public housing development. Because this project does not trigger flow control requirements, the option to utilize off-site flow control capacity is not applicable. Special Requirement #2: Flood Hazard Delineation Special Requirement #2 does not apply to this project because no flood hazard areas exist on or adjacent to the project site. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 21 KPG Special Requirement #3: Flood Protection Facilities Special Requirement #3 does not apply to this project because the project will not rely on or modify an existing flood protection facility. Special Requirement #4: Source Controls This project will not create any special circumstances where additional BMPs are warranted during and after construction. Special Requirement #5: Oil Control Traffic volumes within the project’s roadway intersections as shown on the City of Renton 2012 Traffic Flow Map are well below the thresholds for high use sites as defined on Pages 1-3 and 1- 4 of the RSWDM. As a result, no additional oil control BMPs are required. Special Requirement #6: Aquifer Protection (City of Renton) The project is not located within an aquifer protection area using the current mapping contained in the online COR Maps application. 5. Alternatives Considered Since the goal of this project is to retrofit the roadway using green infrastructure consisting of pervious concrete sidewalks and bioretention cells, alternatives that were considered for this project focused on different street layouts to achieve this goal within the existing public rights- of-way, while minimizing negative impacts to residents and users such as loss of parking and large vehicle turning movements. During preliminary design, five alternative street layouts were developed and evaluated, which consisted varying lane widths, varying parking strip widths, alternatives with parking on both sides or just one side of the street. All alternatives proposed the same amount of water quality treatment and use of permeable pavement for sidewalks. 6. Design Analysis This chapter documents the final design of stormwater management improvements associated with this project, which include bioretention planters, Filterra units, pervious concrete sidewalks, and storm drainage systems to convey stormwater to and from these systems. The approach to the design of each stormwater management element is described in the following sections. Figure 4 shows the locations and tributary areas of each bioretention cell and Filterra unit. Appendix B contains detailed sizing calculations. 90% design plans are in Appendix F. 6.1 Bioretention Design 12 bioretention cells have been designed to provide the majority of the project’s water quality treatment per the RSWDM. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 22 KPG As detailed on the plans, both vertical-walled bioretention cells and bioretention cells with side slopes will be constructed within planter strips. Curb cuts and shallow, piped drainage systems will be provided to convey runoff into the bioretention facilities, and catch basins with beehive grates in the planters will serve as overflows. Underdrain pipes will be connected to the overflow structures in areas where infiltration is not feasible. The project’s geotechnical report, prepared by HWA GeoSciences Inc. and attached in Appendix D, evaluated the project area for the feasibility of infiltration. Areas of outwash soils were found to exist on NE 16th Street (Boreholes 1-4) and on Jefferson Avenue NE near Station 82+30 (Borehole 9). Three small-scale pilot infiltration tests (PITs) were performed to determine design infiltration rates for stormwater facilities constructed in areas with outwash soils. PIT 1 on NE 16th Street between Harrington Avenue NE and Index Avenue NE resulted in a design infiltration rate of 3.7 inches per hour after applying correction factors. PIT 2 near the intersection of NE 16th Street and Jefferson Avenue NE did not exhibit significant infiltration due to an underlying glacial till layer. PIT 3 at the south end of Jefferson Avenue NE resulted in a design infiltration rate of 4.0 inches per hour. The three bioretention cells in the vicinity of PIT 1 and PIT 3 will be constructed without underdrains. The remaining nine cells will be constructed with underdrains, assuming only limited infiltration will occur. Sizing calculations for water quality treatment have been performed for the proposed bioretention facilities using the Western Washington Hydrology Model (WWHM) for areas with and without infiltration (see Appendix B). All facilities exceed the minimum of 91 percent infiltration of the runoff time series required for water quality treatment. Sizing calculations for On-Site BMPs is based on Section 1.2.9.3.2 Small Road Improvement and Urban Road Improvement Projects BMP Requirements of the RSWDM. Three bioretention cells are located in outwash soils, the required bioretention volume is 0.1 inch of equivalent storage depth for the total target surface area. The other nine bioretention cells are located in till soils that are not feasible for infiltration as recommended in the geotechnical report. Table 3 – Bioretention Sizing for On-Site BMPs Bioretention Cell No. Impervious Area1 Required Storage Volume Provided Storage Volume2 S1 4,744 sf 40 cf 101 cf S2 11,225 sf 93 cf 101 cf J9 3,273 sf 27 cf 28 cf Notes: 1. Impervious area does not includes offsite run-on from adjacent properties for calculation of on-site BMP volume requirement. Offsite run-on is accounted for in WWHM calculations in Appendix B. 2. Volume is calculated based on bottom width x length x effective storage depth. See bioretention cell calculations in Appendix B for cell geometry. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 23 KPG 6.2 Filterra Unit Sizing Filterra units are proposed for areas of the project where it is not feasible to construct bioretention planters. Filterra units have GULD approval from the Washington State Department of Ecology for both Basic and Enhanced level treatment based on specific sizing requirements. Filterra sizing is consistent with the requirements of the GULD and modeled using the sand filter sizing module in WWHM using a 15-minute time step. For Enhanced Basic Water Quality Treatment, the infiltration rate of the filtration media is 175 inches per hour. The facility is sufficiently sized when the “percent filtered” is greater than 91% of the influent runoff. WWHM sizing calculations are provided in Appendix B. Additionally, Appendix G contains a copy of the Department of Ecology’s GULD Approval and operation & maintenance guidelines. 6.3 Permeable Pavement Design As discussed in Chapter 4, pervious concrete is proposed for the project’s sidewalks. The project geotechnical engineer has recommended design infiltration rates between 0.3 inch per hour and 4 inches per hour for permeable pavement, depending on the underlying soil type (see Appendix D). WWHM calculations have been performed for the permeable sidewalks to demonstrate that they will infiltrate 100% of the runoff file and therefore can be considered non-effective impervious surface that is not subject to flow control requirements (see Appendix B). An infiltration rate of 0.3 inch per hour has been used in the WWHM calculations for permeable sidewalks in areas with glacial till soils and 3.7 inches per hour in areas with outwash soils. Although the WWHM analysis shows 100% infiltration for permeable sidewalks constructed throughout the project site, underdrains will be provided in the reservoir course at the low point near the intersection of NE 16th Street and Jefferson Avenue NE. The underdrains will provide an overflow in case the infiltration capacity of the underlying glacial till soils in that area are exceeded, thereby preventing lateral seepage into the adjacent bioretention cells. 6.4 Conveyance System Design Per the RSWDM, new pipe systems are required to be designed with sufficient capacity to convey and contain the 25-year peak flow. In addition, overflows resulting from the 100-year runoff event are required to be analyzed to verify that any such overflows will not create or aggravate a severe flooding problem or severe erosion problem. Per Table 3.2 of the 2016 KCSWDM, the Rational Method is required for hydrology calculations for conveyance analyses for basins less 10 acres in size, unless more than 50% of the tributary area is detained, in which case the Western Washington Hydrology Model (WWHM) or other approved continuous hydrology model may be used. For drainage basins larger than 10 acres, either the Rational Method, Santa Barbara Urban Hydrograph Method (SBUH), WWHM, or other approved continuous hydrology model may be used. The Rational Method was used for pipe sizing. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 24 KPG XP-Storm software by XP Solutions was used for hydrologic and hydraulic modeling of the proposed drainage system. These calculations have been included in Appendix B. •••••••••••••••••DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT••••••••••••••••NE 16TH ST INDEX AVE NEHARRINGTON AVE NERENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST PLAN PLAN FIGURE 4. FACILITY BASIN MAP 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 4A S1 4' X 4' FILTERRA UNIT S2 CELL S1 CELL S2 S2 F1 S3 CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NEPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 4B S3 J2 J1 C E L L S 3 FIGURE 4. FACILITY BASIN MAP LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE PLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 4C FIGURE 4. FACILITY BASIN MAP J2 J1 J3 J1 J4 J5 J6 J7 CELL J5 CELL J4 CELL J3 CELL J2 CELL J1 CELL J6 J8 FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH ST••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 4D FIGURE 4. FACILITY BASIN MAP F4 J9 CELL J9 4' X 4' FILTERRA UNIT 4' X 4' FILTERRA UNIT J8 F2 F3 J9 CELL 8 CELL J7 4' X 4' FILTERRA UNIT City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 29 KPG 7. Water Quality Benefit Treatment ratios and flow control ratios have been calculated for the proposed bioretention, Filterra, and permeable pavement facilities funded by the Ecology stormwater grant. Detailed calculations are attached in Appendix C and are summarized below. Runoff Treatment Benefit As discussed in Chapter 6 and shown in the facility sizing calculations included in Appendix B, the proposed runoff treatment facilities have been designed to meet or exceed new and redevelopment design criteria, in that all proposed bioretention and Filterra facilities will treat 91 percent or more of runoff from the facility tributary areas. As a result, the flow control ratio is one. Therefore, the Equivalent New/Redevelopment Runoff Treatment Areas are as shown in Table 4. Table 4 – Runoff Treatment Benefit Runoff Treatment BMP PGIS Area Tributary to Treatment BMP New/Redevelopment Treatment Ratio Equivalent New/Redevelopment Treatment Area Bioretention 1.05 ac 1 1.05 ac Filterra units 0.44 ac 1 0.44 ac Total 1.49 ac 1.49 ac Additional runoff treatment benefits are provided on this project through: · Removal of 0.18 acre of pollution generating impervious surfaces within the project area · Redirecting 0.11 acre of runoff on NE 16th Street to an existing bioretention swale. As a result, a total of 1.78 acres of existing pollution-generating impervious surfaces (PGIS) will be mitigated by this project. Although this is slightly less than the goal of approximately two acres of PGIS stated in the grant agreement, the total impervious area treated by these facilities (both PGIS and non-PGIS) exceeds that goal. Flow Control Benefit The project also provides a flow control benefit due to the use of three infiltrating bioretention facilities and permeable pavement in areas with outwash soils, as shown in Table 5. See Appendix C for calculations for the new/redevelopment flow control ratio for bioretention. Table 5 – Flow Control Benefit Flow Control BMP Impervious Area Tributary to Flow Control BMP New/Redevelopment Flow Control Ratio Equivalent New/Redevelopment Flow Control Area Bioretention 0.44 ac 0.61 0.27 ac Permeable Pavement 0.32 ac 1 0.32 ac Total 0.76 ac 0.59 ac City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 30 KPG 8. Cost Estimate A construction cost estimate has been prepared corresponding to a 90% level of design completion (attached in Appendix E). This estimate includes both the grant-funded and non- grant funded portions of the project. The Ecology grant-eligible portion is currently estimated to be $2,198,660 (ineligible costs as indicated by highlighted sections of Schedule A of the estimate), which is slightly more than the grant amount of $2,150,000 designated for project construction. Non-grant-eligible costs in Schedule A consist of topsoil and street trees for proposed planter strip areas outside of bioretention areas. 9. Proposed Schedule At this time the proposed schedule for completion of this project is as follows: · Design Report Re-Submittal: March 2020 · 90% PS&E Submittal: March 2020 · Ecology Review of 90% PS&E & Revised Design Report: March-April 2020 · Final Bid Package Submittal: May 2020 · Ecology Review of Final Bid Package: June-July 2020 · Advertisement for Bid: July-August 2020 · Construction: August 2020 – May 2021 10. Operation & Maintenance Operation and Maintenance information for the bioretention cells, permeable pavement, and Filterra Units are included in Appendix G of this report. City of Renton maintenance crews will be responsible for the inspection and maintenance of all stormwater management facilities installed within the right of way for this project. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX A – Project Area Maps · Figures 5A-5D Project Area Maps ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E HMA CON C . CON C . CON C . RE M O V E A N D RE P L A C E F E N C E DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN TAI FUNG LLC NE 16TH ST INDEX AVE NEHARRINGTON AVE NE••••••••••••••••CONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMACONC. HMA CONC. CONC. CONC. CONC. HMA HMA RENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST PLAN PLAN FIGURE 5. PROJECT AREAS 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 5A 4' X 4' FILTERRA UNIT TDA A CELL S1 CELL S2 TDA A CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NEPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 5B TDA A CELL J2 CELL J1 CE L L S 3 FIGURE 5. PROJECT AREAS HMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCHMAHMAHMACONCHMACONC.CONCSEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE CONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMACONC.HMAHMAHMAHMAHMAHMAHMAHMAHMALUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE PLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 5C TDA A CELL J5 CELL J4 CELL J3 CELL J2 CELL J1 FIGURE 5. PROJECT AREAS MAP TDA A TDA B CELL J6 HMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAHMACONC.HMACONC.CONC.CSTCHMACONCHMACONCHMAFUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH ST••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••HMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMAHMACSTCHMAHMAHMARUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STPLAN 3131 Elliott Ave Suite 400 Seattle, WA 98121 (206) 286-1640 2502 Jefferson Ave Tacoma, WA 98402 (253) 627-0720 www.kpg.com Interdisciplinary Design 5D TDA B CELL J9 4' X 4' FILTERRA UNIT 4' X 4' FILTERRA UNIT FIGURE 5. PROJECT AREAS MAP CELL J7 CELL J8 TDA B 4' X 4' FILTERRA UNIT City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX B – Stormwater Facility Design Calculations · Bioretention Cell Sizing Calculations · Filterra Sizing Calculations · Permeable Pavement Calculations · Conveyance Calculations City of Renton NE 16th St - Jefferson Ave NE Stormwater Green Connections Project Design Report Bioretention Cell Sizing Summary Cell No. Total Area1 (acres) Total Pervious1 (acres) Total Impervious1 (acres)Ksat 2 Underdrain Section Type3 Average Ponding Depth4 (ft) Total Voume Filterred (%) S1 0.162 0.053 0.109 2 No A 0.65 98.79 S2 0.274 0.074 0.200 4 No A 0.68 95.16 S3 0.153 0.032 0.121 4 Yes B 0.58 96.15 J1 0.342 0.098 0.244 4 Yes D 1.00 97.7 J2 0.119 0.026 0.093 2 Yes E 0.45 94.91 J3 0.081 0.015 0.066 2 Yes E 0.39 99.18 J4 0.073 0.004 0.069 2 Yes E 0.35 96.88 J5 0.120 0.036 0.083 2 Yes E 0.27 95.21 J6 0.122 0.060 0.063 4 Yes D 0.30 97.09 J7 0.079 0.028 0.050 2 Yes E 0.25 98.98 J8 0.186 0.037 0.149 4 Yes B 0.50 92.18 J9 0.084 0.009 0.075 4 No C 0.25 97.39 1. Total Area includes offsite areas as shown in Figure 4. 2. Ksat is 4 for PGIS > 5,000 SF or Total Impervious > 10,000 SF 3. Section Type is the bioretention cell geometry per 90% design plans 4. Average depth accounts for swale bottom slope and length 5. For bioretention cells without underdrains, a long-term infiltration rate of 3.7 inches per hour was used based on geotechnical report March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Sizing Calculations WWHM Input City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell S1 WWHM Screenshots City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell S1 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell S2 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention S2 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell S3 NO OFFSITE FLOWS City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell S3 Geometry Bioretention Cell J1 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J1 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J2 NO OFFSITE FLOWS City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J2 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J3 NO OFFSITE FLOWS City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J3 Geometry: City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J4 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J4 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J5 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J5 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J6 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J7 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J7 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J8 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell J8 Geometry City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell No. 9 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Bioretention Cell No. 9 Geometry City of Renton NE 16th St - Jefferson Ave NE Stormwater Green Connections Project Design Report Filterra Unit Sizing Summary Area Facility Description Total Area1 (acres) Total Pervious1 (acres) Total Impervious1 (acres) Water Quality Flow Rate (cfs) Filterra Infiltration Rate2 (in/hr) Required Surface Area (sf) Provided Surface Area (sf) F1 Structure 400 - 4' x 4' Filterra 0.1898 0.0670 0.1228 0.0224 175 5.53 16 F2 Structure 500 - 4' x 4' Filterra 0.2857 0.1463 0.1394 0.0245 175 6.05 16 F3 Structure 501 - 4' x 4' Filterra 0.1497 0.0326 0.1171 0.029 175 7.16 16 F4 Structure 502 - 4' x 4' Filterra 0.1791 0.0486 0.1305 0.0232 175 5.73 16 1. Total Area includes offsite areas as shown in Figure 3. 2. Per GULD Sizing Calculations March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Filterra Sizing Calculations WWHM Input City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Filterra No. 400 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Filterra No. 500 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Filterra No. 501 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Filterra No. 502 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG Permeable Pavement Calculations WWHM Input City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ Mar 2020 Appendix B KPG Conveyance Calculations TDA A City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ Mar 2020 Appendix B KPG TDA B 68 77 96 777 11 76 117 5 2 66 1 101 98 18 20 22 30 14 41 47 46 45 58 53 XPSTORM MODEL SCHEMATIC XP-Storm Tables Conveyance Analysis Design Report New Conveyance Systems - XP TABLES TDA Conveyance Basins - 25-year Name Scenario Subcatchment Area ac Impervious Percentage % Impervious Tc mins Pervious Tc mins Runoff Coefficient (Pervious) Rational Inflow cfs 1 25-yr 1 0.19 64.7 6.3 6.3 0.25 0.305 5 25-yr 1 0.373 69.1 6.3 6.3 0.25 0.719 11 25-yr 1 0.2 65.7 6.3 6.3 0.25 0.373 12 25-yr 1 0.13 50 6.3 6.3 0.25 0.206 14 25-yr 1 0.25 80 6.3 6.3 0.25 0.531 30 25-yr 1 0.165 80 6.3 6.3 0.25 0.35 77 25-yr 1 6.7 54 6.3 15 0.25 6.318 96 25-yr 1 0.2 50 6.3 6.3 0.25 0.317 98 25-yr 1 0.162 67.4 6.3 6.3 0.25 0.307 18 25-yr 1 0.073 94.7 6.3 6.3 0.25 0.174 20 25-yr 1 0.081 81.1 6.3 6.3 0.25 0.174 22 25-yr 1 0.554 66.5 6.3 6.3 0.25 1.042 41 25-yr 1 0.125 66.7 6.3 6.3 0.25 0.432 42 25-yr 1 0.079 64.1 6.3 6.3 0.25 0.145 43 25-yr 1 0.186 80.1 6.3 6.3 0.25 0.753 45 25-yr 1 0.084 89 6.3 6.3 0.25 0.192 46 25-yr 1 0.18 72.9 6.3 6.3 0.25 0.359 58 25-yr 1 0.15 78.2 6.3 6.3 0.25 0.314 132 25-yr 1 0.1 65 6.3 6.3 0.25 0.185 137 25-yr 1 0.13 65 6.3 6.3 0.25 0.241 66 25-yr 1 0.94 70 6.3 23 0.25 3.919 March 2020 Appendix B KPG XP-Storm Tables Conveyance Analysis Design Report TDA Links - 25-year Name Scenario Upstream Node Name Downstream Node Name Shape Diameter (Height) ft Length ft Conduit Slope Roughness Max Flow cfs Max Velocity ft/s P_1 25-yr 1 2 Circular 1.5 83.64 3.037 0.012 10.031 11.24 P_3 25-yr 2 101 Circular 1.5 166.58 3.056 0.012 10.031 10.87 P_5 25-yr 5 98 Circular 1.5 20.2 0.495 0.012 14.669 8.27 P_9 25-yr 11 12 Circular 1 84.56 0.497 0.012 0.373 2 P_10 25-yr 12 13 Circular 1 41.84 0.526 0.012 0.665 1.61 P_11 25-yr 13 14 Circular 1 14.22 0.492 0.012 2.56 3.3 Link99 25-yr 14 777 Circular 1 115.41 0.416 0.012 3.091 3.98 P_54 25-yr 30 13 Circular 1 42.44 0.518 0.012 0.35 1.39 P_71 25-yr 77 76 Circular 1.5 78.72 0.508 0.012 9.409 5.78 P_72 25-yr 76 1 Circular 1.5 73.43 0.545 0.012 9.726 6.79 P_89 25-yr 96 76 Circular 1 75.94 3.411 0.012 0.317 4.54 P_57 25-yr 98 68 Circular 1.5 46.12 0.499 0.012 14.976 8.46 P_3_1 25-yr 101 5 Circular 1.5 91.27 3.659 0.012 13.95 10.6 P_15 25-yr 18 146 Circular 1 68.22 1.173 0.012 0.175 2.62 P_18 25-yr 20 137 Circular 1 57.19 0.507 0.012 0.348 2.23 P_19 25-yr 22 13 Circular 1 44.98 0.489 0.012 1.631 2.83 P_35 25-yr 41 42 Circular 1 94.08 2.455 0.012 0.432 4.37 P_36 25-yr 42 134 Circular 1 30.58 2.714 0.012 0.577 5.03 P_38 25-yr 43 58 Circular 1 169.4 4.404 0.012 1.515 7.89 P_39 25-yr 45 46 Circular 1 120.14 3.687 0.012 2.02 8.03 P_40 25-yr 46 47 Circular 1.5 37.66 1.992 0.012 2.38 3.26 P_38_1 25-yr 58 45 Circular 1 88.5 6.21 0.012 1.829 9.15 P_36_1 25-yr 132 43 Circular 1 68.94 2.031 0.012 0.762 4.81 P_36_2 25-yr 134 132 Circular 1 92.84 2.725 0.012 0.577 4.87 P_18_1 25-yr 137 22 Circular 1 107.3 0.503 0.012 0.589 2.26 P_15_1 25-yr 146 20 Circular 1 104 1.183 0.012 0.174 2.34 Link100 25-yr 777 77 Circular 1.5 200.76 0.757 0.012 3.091 4.91 Link101 25-yr 66 117 Circular 1 139.5 3.376 0.012 3.919 8.93 Link103 25-yr 117 101 Circular 1 27.11 1.549 0.012 3.919 6.82 March 2020 Appendix B KPG XP-Storm Tables Conveyance Analysis Design Report TDA Node HGL - 25-year Name Scenario Ponding Type Invert Elevation ft Ground Elevation (Spill Crest) ft Max Water Elevation ft Freeboard ft 1 25-yr None 371.30 377.56 372.06 5.50 2 25-yr None 368.76 375.51 369.51 6.00 5 25-yr None 360.33 363.68 362.63 1.05 11 25-yr None 375.22 381.77 375.61 6.16 12 25-yr None 374.80 379.19 375.60 3.59 13 25-yr None 374.57 378.72 375.59 3.13 14 25-yr None 374.50 378.57 375.53 3.04 30 25-yr None 374.80 378.02 375.60 2.43 68 25-yr None 360.00 363.01 361.50 1.51 77 25-yr None 372.10 381.80 373.42 8.38 76 25-yr None 371.70 379.64 372.88 6.76 96 25-yr None 378.48 381.73 378.62 3.11 98 25-yr None 360.23 363.61 362.30 1.31 101 25-yr None 363.67 368.07 364.68 3.39 18 25-yr None 377.68 381.59 377.82 3.77 20 25-yr None 375.65 380.01 375.90 4.11 22 25-yr None 374.8 378.5 375.657 2.84 41 25-yr None 375.66 380.45 375.841 4.61 42 25-yr None 373.35 378.05 373.554 4.5 43 25-yr None 368.59 372.82 368.883 3.94 45 25-yr None 355.19 359.32 355.547 3.77 46 25-yr None 346.35 355.64 347.186 8.45 47 25-yr None 345.6 355.88 347.1 8.78 58 25-yr None 360.69 364.38 360.985 3.39 132 25-yr None 369.99 374.81 370.241 4.57 134 25-yr None 372.52 377.25 372.723 4.53 137 25-yr None 375.36 379.48 375.739 3.74 146 25-yr None 376.88 380.96 377.019 3.94 777 25-yr None 373.92 380.50 374.51 5.99 66 25-yr None 369.30 374.80 369.831 4.97 117 25-yr None 364.59 367.97 365.276 2.69 March 2020 Appendix B KPG XP-Storm Tables Conveyance Analysis Design Report New Conveyance Systems - XP TABLES TDA Conveyance Basins - 100-year Name Scenario Subcatchment Area ac Impervious Percentage % Impervious Tc mins Pervious Tc mins Runoff Coefficient (Pervious) Rational Inflow cfs 1 100-yr 1 0.19 64.7 6.3 6.3 0 0.356 5 100-yr 1 0.373 69.1 6.3 6.3 0.25 0.839 11 100-yr 1 0.2 65.7 6.3 6.3 0.25 0.436 12 100-yr 1 0.13 50 6.3 6.3 0.25 0.241 14 100-yr 1 0.25 80 6.3 6.3 0.25 0.62 30 100-yr 1 0.165 80 6.3 6.3 0.25 0.409 77 100-yr 1 6.7 54 6.3 15 0.25 7.505 96 100-yr 1 0.2 50 6.3 6.3 0.25 0.37 98 100-yr 1 0.162 67.4 6.3 6.3 0.25 0.359 18 100-yr 1 0.073 94.7 6.3 6.3 0.25 0.203 20 100-yr 1 0.081 81.1 6.3 6.3 0.25 0.203 22 100-yr 1 0.554 66.5 6.3 6.3 0.25 1.217 41 100-yr 1 0.125 66.7 6.3 6.3 0.25 0.504 42 100-yr 1 0.079 64.1 6.3 6.3 0.25 0.17 43 100-yr 1 0.186 80.1 6.3 6.3 0.25 0.879 45 100-yr 1 0.084 89 6.3 6.3 0.25 0.224 46 100-yr 1 0.18 72.9 6.3 6.3 0.25 0.419 58 100-yr 1 0.15 78.2 6.3 6.3 0.25 0.366 132 100-yr 1 0.1 65 6.3 6.3 0.25 0.216 137 100-yr 1 0.13 65 6.3 6.3 0.25 0.281 66 100-yr 1 0.94 70 6.3 23 0.25 4.64 March 2020 Appendix B KPG XP-Storm Tables Conveyance Analysis Design Report TDA Links - 100-year Name Scenario Upstream Node Name Downstream Node Name Shape Diameter (Height) ft Length ft Conduit Slope Roughness Max Flow cfs Max Velocity ft/s P_1 100-yr 1 2 Circular 1.5 83.64 3.037 0.012 11.84 11.71 P_3 100-yr 2 101 Circular 1.5 166.58 3.056 0.012 11.84 11.17 P_5 100-yr 5 98 Circular 1.5 20.2 0.495 0.012 17.32 9.75 P_9 100-yr 11 12 Circular 1 84.56 0.497 0.012 0.436 2.03 P_10 100-yr 12 13 Circular 1 41.84 0.526 0.012 0.677 1.62 P_11 100-yr 13 14 Circular 1 14.22 0.492 0.012 2.99 3.8 Link99 100-yr 14 777 Circular 1 115.41 0.416 0.012 3.609 4.65 P_54 100-yr 30 13 Circular 1 42.44 0.518 0.012 0.409 1.44 P_71 100-yr 77 76 Circular 1.5 78.72 0.508 0.012 11.114 6.09 P_72 100-yr 76 1 Circular 1.5 73.43 0.545 0.012 11.484 7.17 P_89 100-yr 96 76 Circular 1 75.94 3.411 0.012 0.37 4.77 P_57 100-yr 98 68 Circular 1.5 46.12 0.499 0.012 17.678 9.97 P_3_1 100-yr 101 5 Circular 1.5 91.27 3.659 0.012 16.48 10.51 P_15 100-yr 18 146 Circular 1 68.22 1.173 0.012 0.204 2.75 P_18 100-yr 20 137 Circular 1 57.19 0.507 0.012 0.406 2.28 P_19 100-yr 22 13 Circular 1 44.98 0.489 0.012 1.904 2.87 P_35 100-yr 41 42 Circular 1 94.08 2.455 0.012 0.504 4.58 P_36 100-yr 42 134 Circular 1 30.58 2.714 0.012 0.673 5.26 P_38 100-yr 43 58 Circular 1 169.4 4.404 0.012 1.769 8.25 P_39 100-yr 45 46 Circular 1 120.14 3.687 0.012 2.359 8.38 P_40 100-yr 46 47 Circular 1.5 37.66 1.992 0.012 2.779 3.61 P_38_1 100-yr 58 45 Circular 1 88.5 6.21 0.012 2.135 9.56 P_36_1 100-yr 132 43 Circular 1 68.94 2.031 0.012 0.89 5.02 P_36_2 100-yr 134 132 Circular 1 92.84 2.725 0.012 0.673 5.09 P_18_1 100-yr 137 22 Circular 1 107.3 0.503 0.012 0.687 2.26 P_15_1 100-yr 146 20 Circular 1 104 1.183 0.012 0.203 2.44 Link100 100-yr 777 77 Circular 1.5 200.76 0.757 0.012 3.609 4.67 Link101 100-yr 66 117 Circular 1 139.5 3.376 0.012 4.64 9.27 Link103 100-yr 117 101 Circular 1 27.11 1.549 0.012 4.64 6.97 March 2020 Appendix B KPG XP-Storm Tables Conveyance Analysis Design Report TDA Node HGL - 100-year Name Scenario Ponding Type Invert Elevation ft Ground Elevation (Spill Crest) ft Max Water Elevation ft Freeboard ft 1 100-yr None 371.30 377.56 372.14 5.42 2 100-yr None 368.76 375.51 369.59 5.92 5 100-yr None 360.33 363.68 363.07 0.61 11 100-yr None 375.22 381.77 375.93 5.84 12 100-yr None 374.80 379.19 375.92 3.27 13 100-yr None 374.57 378.22 375.91 2.31 14 100-yr None 374.50 378.57 375.82 2.75 30 100-yr None 374.80 378.02 375.91 2.11 68 100-yr None 360.00 363.01 361.50 1.51 77 100-yr None 372.10 381.80 373.76 8.04 76 100-yr None 371.70 379.64 373.04 6.60 96 100-yr None 378.48 381.73 378.64 3.10 98 100-yr None 360.23 363.61 362.61 1.00 101 100-yr None 363.67 368.07 364.96 3.11 18 100-yr None 377.68 381.59 377.83 3.76 20 100-yr None 375.65 380.01 376.05 3.96 22 100-yr None 374.8 378.5 376.019 2.48 41 100-yr None 375.66 380.45 375.855 4.59 42 100-yr None 373.35 378.05 373.57 4.48 43 100-yr None 368.59 372.82 368.908 3.91 45 100-yr None 355.19 359.32 355.578 3.74 46 100-yr None 346.35 355.64 347.186 8.45 47 100-yr None 345.6 355.88 347.1 8.78 58 100-yr None 360.69 364.38 361.01 3.37 132 100-yr None 369.99 374.81 370.262 4.55 134 100-yr None 372.52 377.25 372.739 4.51 137 100-yr None 375.36 379.48 376.044 3.44 146 100-yr None 376.88 380.96 377.03 3.93 777 100-yr None 373.92 380.50 374.573 5.93 66 100-yr None 369.30 374.80 369.89 4.91 117 100-yr None 364.59 367.97 365.382 2.59 March 2020 Appendix B KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX C – Flow Control and Runoff Treatment Ratio Calculations and Flow Control Threshold Calculation · Flow Control and Runoff Treatment Ratio Calculations · WWHM Calculations for Bioretention Facilities to Meet New/Redevelopment Flow Control Criteria · WWHM Calculations for Flow Control Thresholds City of Renton NE 16th St - Jefferson Ave NE Stormwater Green Connections Project Design Report Flow Control Ratio Calculation Cell No. Total Area1 (acres) Total Pervious (acres) Total Impervious (acres) Cell Bottom Area (sf) Volume at Riser Head (ac-ft) Total Voume Filterred (%) S1 0.162 0.053 0.109 130.650 0.025 99.03 S2 0.373 0.115 0.258 133.734 0.025 92.35 J9 0.084 0.009 0.075 95.420 0.011 98.69 Total 0.619 0.177 0.442 359.804 0.061 1. Total Area includes offsite areas as shown in Figure 3. Historic conditions modeled as Forested Outwash and sized to meet Stream Protection Flow Control Standard Total Bioretention Volume required to meet Flow Control Duration Standard .100 ac-feet Flow Control Benefit Ratio 0.61 March 2020 Appendix C KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix C KPG Flow Control Benefit Calculations WWHM Input City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix C KPG City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ___________________________________________________________________________________ March 2020 Appendix C KPG WWHM2012 PROJECT REPORT ___________________________________________________________________ Project Name: 18144-BENEFIT-01302020 Site Name: 16th & Jefferson Site Address: 18144 City : Renton Report Date: 1/30/2020 Gage : Seatac Data Start : 1948/10/01 Data End : 2009/09/30 Precip Scale: 1.00 Version Date: 2019/09/13 Version : 4.2.17 ___________________________________________________________________ Low Flow Threshold for POC 1 : 50 Percent of the 2 Year ___________________________________________________________________ High Flow Threshold for POC 1: 50 year ___________________________________________________________________ PREDEVELOPED LAND USE Name : FC-Benefit Bypass: No GroundWater: No Pervious Land Use acre A B, Forest, Mod .6191 Pervious Total 0.6191 Impervious Land Use acre Impervious Total 0 Basin Total 0.6191 ___________________________________________________________________ Element Flows To: Surface Interflow Groundwater ___________________________________________________________________ MITIGATED LAND USE Name : Basin FCB Bypass: No GroundWater: No Pervious Land Use acre A B, Lawn, Mod .1261 Pervious Total 0.1261 Impervious Land Use acre ROADS MOD 0.3505 Impervious Total 0.3505 Basin Total 0.4766 ___________________________________________________________________ Element Flows To: Surface Interflow Groundwater Surface tention FCB Surface tention FCB ___________________________________________________________________ Name : Bioretention FCB Bottom Length: 20.00 ft. Bottom Width: 100.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 0 Material type for second layer: Sand Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate: 3.7 Infiltration safety factor: 1 Total Volume Infiltrated (ac-ft.): 74.674 Total Volume Through Riser (ac-ft.): 0 Total Volume Through Facility (ac-ft.): 74.674 Percent Infiltrated: 100 Total Precip Applied to Facility: 7.774 Total Evap From Facility: 3.723 Underdrain not used Discharge Structure Riser Height: 1 ft. Riser Diameter: 12 in. Element Flows To: Outlet 1 Outlet 2 ___________________________________________________________________ Bioretention FCB Hydraulic Table Stage(feet) Area(ac.) Volume(ac-ft.) Discharge(cfs) Infilt(cfs) 0.0000 0.0459 0.0000 0.0000 0.0000 0.0330 0.0459 0.0007 0.0000 0.0000 0.0659 0.0459 0.0014 0.0000 0.0000 0.0989 0.0459 0.0021 0.0000 0.0000 0.1319 0.0459 0.0028 0.0000 0.0000 0.1648 0.0459 0.0035 0.0000 0.0006 0.1978 0.0459 0.0042 0.0000 0.0009 0.2308 0.0459 0.0048 0.0000 0.0014 0.2637 0.0459 0.0055 0.0000 0.0019 0.2967 0.0459 0.0062 0.0000 0.0025 0.3297 0.0459 0.0069 0.0000 0.0032 0.3626 0.0459 0.0076 0.0000 0.0041 0.3956 0.0459 0.0083 0.0000 0.0051 0.4286 0.0459 0.0090 0.0000 0.0062 0.4615 0.0459 0.0097 0.0000 0.0074 0.4945 0.0459 0.0104 0.0000 0.0088 0.5275 0.0459 0.0111 0.0000 0.0103 0.5604 0.0459 0.0118 0.0000 0.0120 0.5934 0.0459 0.0125 0.0000 0.0138 0.6264 0.0459 0.0132 0.0000 0.0158 0.6593 0.0459 0.0138 0.0000 0.0179 0.6923 0.0459 0.0145 0.0000 0.0202 0.7253 0.0459 0.0152 0.0000 0.0227 0.7582 0.0459 0.0159 0.0000 0.0254 0.7912 0.0459 0.0166 0.0000 0.0282 0.8242 0.0459 0.0173 0.0000 0.0312 0.8571 0.0459 0.0180 0.0000 0.0344 0.8901 0.0459 0.0187 0.0000 0.0377 0.9231 0.0459 0.0194 0.0000 0.0413 0.9560 0.0459 0.0201 0.0000 0.0450 0.9890 0.0459 0.0208 0.0000 0.0490 1.0220 0.0459 0.0215 0.0000 0.0532 1.0549 0.0459 0.0221 0.0000 0.0575 1.0879 0.0459 0.0228 0.0000 0.0621 1.1209 0.0459 0.0235 0.0000 0.0668 1.1538 0.0459 0.0242 0.0000 0.0718 1.1868 0.0459 0.0249 0.0000 0.0770 1.2198 0.0459 0.0256 0.0000 0.0825 1.2527 0.0459 0.0263 0.0000 0.0881 1.2857 0.0459 0.0270 0.0000 0.0940 1.3187 0.0459 0.0277 0.0000 0.1000 1.3516 0.0459 0.0284 0.0000 0.1063 1.3846 0.0459 0.0291 0.0000 0.1129 1.4176 0.0459 0.0298 0.0000 0.1196 1.4505 0.0459 0.0305 0.0000 0.1266 1.4835 0.0459 0.0311 0.0000 0.1337 1.5000 0.0459 0.0315 0.0000 0.1713 Surface tention FCB Hydraulic Table Stage(feet) Area(ac.) Volume(ac-ft.) Discharge(cfs) To Amended(cfs) Wetted Surface 1.5000 0.0459 0.0315 0.0000 0.1389 0.0000 1.5330 0.0459 0.0330 0.0000 0.1389 0.0000 1.5659 0.0459 0.0345 0.0000 0.1450 0.0000 1.5989 0.0459 0.0360 0.0000 0.1480 0.0000 1.6319 0.0459 0.0375 0.0000 0.1511 0.0000 1.6648 0.0459 0.0391 0.0000 0.1542 0.0000 1.6978 0.0459 0.0406 0.0000 0.1572 0.0000 1.7308 0.0459 0.0421 0.0000 0.1603 0.0000 1.7637 0.0459 0.0436 0.0000 0.1633 0.0000 1.7967 0.0459 0.0451 0.0000 0.1664 0.0000 1.8297 0.0459 0.0466 0.0000 0.1694 0.0000 1.8626 0.0459 0.0481 0.0000 0.1725 0.0000 1.8956 0.0459 0.0497 0.0000 0.1755 0.0000 1.9286 0.0459 0.0512 0.0000 0.1786 0.0000 1.9615 0.0459 0.0527 0.0000 0.1816 0.0000 1.9945 0.0459 0.0542 0.0000 0.1847 0.0000 2.0275 0.0459 0.0557 0.0000 0.1877 0.0000 2.0604 0.0459 0.0572 0.0000 0.1908 0.0000 2.0934 0.0459 0.0587 0.0000 0.1938 0.0000 2.1264 0.0459 0.0603 0.0000 0.1969 0.0000 2.1593 0.0459 0.0618 0.0000 0.1999 0.0000 2.1923 0.0459 0.0633 0.0000 0.2030 0.0000 2.2253 0.0459 0.0648 0.0000 0.2060 0.0000 2.2582 0.0459 0.0663 0.0000 0.2091 0.0000 2.2912 0.0459 0.0678 0.0000 0.2121 0.0000 2.3242 0.0459 0.0693 0.0000 0.2152 0.0000 2.3571 0.0459 0.0708 0.0000 0.2183 0.0000 2.3901 0.0459 0.0724 0.0000 0.2213 0.0000 2.4231 0.0459 0.0739 0.0000 0.2244 0.0000 2.4560 0.0459 0.0754 0.0000 0.2274 0.0000 2.4890 0.0459 0.0769 0.0000 0.2305 0.0000 2.5220 0.0459 0.0784 0.0346 0.2315 0.0000 2.5549 0.0459 0.0799 0.1365 0.2315 0.0000 2.5879 0.0459 0.0814 0.2754 0.2315 0.0000 2.6209 0.0459 0.0830 0.4414 0.2315 0.0000 2.6538 0.0459 0.0845 0.6273 0.2315 0.0000 2.6868 0.0459 0.0860 0.8261 0.2315 0.0000 2.7198 0.0459 0.0875 1.0308 0.2315 0.0000 2.7527 0.0459 0.0890 1.2343 0.2315 0.0000 2.7857 0.0459 0.0905 1.4294 0.2315 0.0000 2.8187 0.0459 0.0920 1.6096 0.2315 0.0000 2.8516 0.0459 0.0936 1.7695 0.2315 0.0000 2.8846 0.0459 0.0951 1.9054 0.2315 0.0000 2.9176 0.0459 0.0966 2.0158 0.2315 0.0000 2.9505 0.0459 0.0981 2.1028 0.2315 0.0000 2.9835 0.0459 0.0996 2.1721 0.2315 0.0000 3.0000 0.0459 0.1004 2.2635 0.2315 0.0000 ___________________________________________________________________ Name : Surface tention FCB Element Flows To: Outlet 1 Outlet 2 Bioretention FCB ___________________________________________________________________ Name : FCB OFFSITE Bypass: No GroundWater: No Pervious Land Use acre A B, Lawn, Mod .0513 Pervious Total 0.0513 Impervious Land Use acre ROADS MOD 0.0913 Impervious Total 0.0913 Basin Total 0.1426 ___________________________________________________________________ Element Flows To: Surface Interflow Groundwater Surface tention FCB Surface tention FCB ___________________________________________________________________ ___________________________________________________________________ ANALYSIS RESULTS Stream Protection Duration ___________________________________________________________________ Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.6191 Total Impervious Area:0 ___________________________________________________________________ Mitigated Landuse Totals for POC #1 Total Pervious Area:0.1774 Total Impervious Area:0.4418 ___________________________________________________________________ Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.000537 5 year 0.000886 10 year 0.001197 25 year 0.001699 50 year 0.002167 100 year 0.002729 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 ___________________________________________________________________ Stream Protection Duration Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.000 0.000 1950 0.001 0.000 1951 0.001 0.000 1952 0.000 0.000 1953 0.000 0.000 1954 0.000 0.000 1955 0.000 0.000 1956 0.000 0.000 1957 0.000 0.000 1958 0.000 0.000 1959 0.000 0.000 1960 0.000 0.000 1961 0.000 0.000 1962 0.000 0.000 1963 0.000 0.000 1964 0.000 0.000 1965 0.000 0.000 1966 0.000 0.000 1967 0.000 0.000 1968 0.000 0.000 1969 0.000 0.000 1970 0.000 0.000 1971 0.000 0.000 1972 0.004 0.000 1973 0.000 0.000 1974 0.000 0.000 1975 0.000 0.000 1976 0.000 0.000 1977 0.000 0.000 1978 0.000 0.000 1979 0.000 0.000 1980 0.000 0.000 1981 0.000 0.000 1982 0.000 0.000 1983 0.000 0.000 1984 0.000 0.000 1985 0.000 0.000 1986 0.000 0.000 1987 0.000 0.000 1988 0.000 0.000 1989 0.000 0.000 1990 0.000 0.000 1991 0.001 0.000 1992 0.000 0.000 1993 0.000 0.000 1994 0.000 0.000 1995 0.000 0.000 1996 0.005 0.000 1997 0.001 0.000 1998 0.000 0.000 1999 0.001 0.000 2000 0.000 0.000 2001 0.000 0.000 2002 0.000 0.000 2003 0.000 0.000 2004 0.000 0.000 2005 0.000 0.000 2006 0.000 0.000 2007 0.007 0.000 2008 0.000 0.000 2009 0.000 0.000 ___________________________________________________________________ Stream Protection Duration Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0072 0.0000 2 0.0048 0.0000 3 0.0036 0.0000 4 0.0013 0.0000 5 0.0013 0.0000 6 0.0011 0.0000 7 0.0011 0.0000 8 0.0006 0.0000 9 0.0005 0.0000 10 0.0005 0.0000 11 0.0005 0.0000 12 0.0005 0.0000 13 0.0005 0.0000 14 0.0005 0.0000 15 0.0005 0.0000 16 0.0005 0.0000 17 0.0005 0.0000 18 0.0005 0.0000 19 0.0005 0.0000 20 0.0005 0.0000 21 0.0005 0.0000 22 0.0005 0.0000 23 0.0005 0.0000 24 0.0005 0.0000 25 0.0005 0.0000 26 0.0005 0.0000 27 0.0005 0.0000 28 0.0005 0.0000 29 0.0005 0.0000 30 0.0005 0.0000 31 0.0005 0.0000 32 0.0005 0.0000 33 0.0005 0.0000 34 0.0005 0.0000 35 0.0005 0.0000 36 0.0005 0.0000 37 0.0005 0.0000 38 0.0005 0.0000 39 0.0005 0.0000 40 0.0005 0.0000 41 0.0005 0.0000 42 0.0005 0.0000 43 0.0005 0.0000 44 0.0005 0.0000 45 0.0005 0.0000 46 0.0005 0.0000 47 0.0005 0.0000 48 0.0005 0.0000 49 0.0005 0.0000 50 0.0005 0.0000 51 0.0005 0.0000 52 0.0005 0.0000 53 0.0005 0.0000 54 0.0005 0.0000 55 0.0005 0.0000 56 0.0005 0.0000 57 0.0005 0.0000 58 0.0004 0.0000 59 0.0004 0.0000 60 0.0004 0.0000 61 0.0004 0.0000 ___________________________________________________________________ Stream Protection Duration POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Mit Percentage Pass/Fail 0.0003 2926 0 0 Pass 0.0003 2500 0 0 Pass 0.0003 2136 0 0 Pass 0.0003 1796 0 0 Pass 0.0003 1506 0 0 Pass 0.0004 1298 0 0 Pass 0.0004 1087 0 0 Pass 0.0004 855 0 0 Pass 0.0004 637 0 0 Pass 0.0004 476 0 0 Pass 0.0005 330 0 0 Pass 0.0005 194 0 0 Pass 0.0005 44 0 0 Pass 0.0005 35 0 0 Pass 0.0005 33 0 0 Pass 0.0006 31 0 0 Pass 0.0006 30 0 0 Pass 0.0006 29 0 0 Pass 0.0006 29 0 0 Pass 0.0006 29 0 0 Pass 0.0007 28 0 0 Pass 0.0007 28 0 0 Pass 0.0007 27 0 0 Pass 0.0007 27 0 0 Pass 0.0007 27 0 0 Pass 0.0007 27 0 0 Pass 0.0008 26 0 0 Pass 0.0008 25 0 0 Pass 0.0008 25 0 0 Pass 0.0008 24 0 0 Pass 0.0008 23 0 0 Pass 0.0009 23 0 0 Pass 0.0009 23 0 0 Pass 0.0009 22 0 0 Pass 0.0009 22 0 0 Pass 0.0009 21 0 0 Pass 0.0010 21 0 0 Pass 0.0010 21 0 0 Pass 0.0010 21 0 0 Pass 0.0010 21 0 0 Pass 0.0010 20 0 0 Pass 0.0011 19 0 0 Pass 0.0011 19 0 0 Pass 0.0011 18 0 0 Pass 0.0011 18 0 0 Pass 0.0011 16 0 0 Pass 0.0012 16 0 0 Pass 0.0012 16 0 0 Pass 0.0012 16 0 0 Pass 0.0012 15 0 0 Pass 0.0012 15 0 0 Pass 0.0012 15 0 0 Pass 0.0013 15 0 0 Pass 0.0013 15 0 0 Pass 0.0013 14 0 0 Pass 0.0013 13 0 0 Pass 0.0013 13 0 0 Pass 0.0014 13 0 0 Pass 0.0014 13 0 0 Pass 0.0014 13 0 0 Pass 0.0014 12 0 0 Pass 0.0014 12 0 0 Pass 0.0015 11 0 0 Pass 0.0015 11 0 0 Pass 0.0015 11 0 0 Pass 0.0015 11 0 0 Pass 0.0015 11 0 0 Pass 0.0016 10 0 0 Pass 0.0016 10 0 0 Pass 0.0016 10 0 0 Pass 0.0016 9 0 0 Pass 0.0016 9 0 0 Pass 0.0016 9 0 0 Pass 0.0017 9 0 0 Pass 0.0017 9 0 0 Pass 0.0017 8 0 0 Pass 0.0017 8 0 0 Pass 0.0017 8 0 0 Pass 0.0018 8 0 0 Pass 0.0018 8 0 0 Pass 0.0018 8 0 0 Pass 0.0018 8 0 0 Pass 0.0018 8 0 0 Pass 0.0019 8 0 0 Pass 0.0019 8 0 0 Pass 0.0019 8 0 0 Pass 0.0019 8 0 0 Pass 0.0019 8 0 0 Pass 0.0020 8 0 0 Pass 0.0020 8 0 0 Pass 0.0020 8 0 0 Pass 0.0020 8 0 0 Pass 0.0020 8 0 0 Pass 0.0021 8 0 0 Pass 0.0021 8 0 0 Pass 0.0021 8 0 0 Pass 0.0021 8 0 0 Pass 0.0021 8 0 0 Pass 0.0021 8 0 0 Pass 0.0022 8 0 0 Pass _____________________________________________________ ___________________________________________________________________ Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. ___________________________________________________________________ LID Report LID Technique Used for Total Volume Volume Infiltration Cumulative Percent Water Quality Percent Comment Treatment? Needs Through Volume Volume Volume Water Quality Treatment Facility (ac-ft.) Infiltration Infiltrated Treated (ac-ft) (ac-ft) Credit tention FCB POC N 67.95 N 100.00 Total Volume Infiltrated 67.95 0.00 0.00 100.00 0.00 0% No Treat. Credit Compliance with LID Standard 8 Duration Analysis Result = Passed ___________________________________________________________________ Perlnd and Implnd Changes No changes have been made. ___________________________________________________________________ This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2020; All Rights Reserved. City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ____________________________________________________________________________________ March 2020 Appendix C KPG Flow Control Threshold Calculations WWHM Input City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ____________________________________________________________________________________ March 2020 Appendix C KPG TDA A City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ____________________________________________________________________________________ March 2020 Appendix C KPG TDA B City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX D – Geotechnical Report · Geotechnical Engineering Report, NE 16th Street – Jefferson Avenue NE Stormwater Green Connections, City of Renton (HWA GeoSciences, 12/4/19) 21312 30th Dr. SE, STE. 110, Bothell, WA 98021 | 425.774.0106 | hwageo.com December 4, 2019 HWA Project No. 2018-167-21 KPG 3131 Elliott Avenue, Suite 400 Seattle, Washington 98121 Attention: Kirk Smith, P.E. Subject: GEOTECHNICAL ENGINEERING REPORT NE 16th Street - Jefferson Avenue NE Stormwater Green Connections Renton, Washington Dear Mr. Smith, This letter presents the results of geotechnical engineering studies for the NE 16th Street - Jefferson Avenue NE Stormwater Green Connections project in Renton, Washington. This report includes the results of our field explorations, laboratory testing, evaluation of infiltration feasibility and infiltration rates. The approximate location of the project site is shown on the Vicinity Map, Figure 1, and on the Site Exploration Plans, Figure 2A through 2C. PROJECT UNDERSTANDING It is our understanding that the City of Renton proposes to improve pedestrian mobility, improve stormwater quality and reduce the quantity of stormwater runoff to enhance the neighborhood. Improvements will include bioretention facilities and pervious sidewalks on segments of NE 16th Street and Jefferson Avenue NE. A new curb, gutter, and pervious concrete sidewalk will replace the existing pedestrian path and improve pedestrian safety. A stormwater conveyance system will collect and convey street roadway runoff flow from the underdrain system for the bioretention facilities. Design of these improvements will require evaluation of the subsurface soil conditions and geotechnical recommendations. GEOTECHNICAL SUBSURFACE EXPLORATIONS As part of the initial phase of this project, HWA GeoSciences Inc. (HWA) conducted nine geotechnical borings to evaluate subsurface conditions for the purpose of assessing infiltration potential. The locations of the boreholes are shown on the Site Exploration Plans, Figures 2A through 2C. The borings, designated BH-1 through BH-9, were each drilled to a depth of 11.5 feet below ground surface (bgs) with the exception of boring BH-2 which was drilled to 2 feet bgs due to refusal on concrete. The borings were drilled by Geologic Drill Partners, of Bellevue, December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 2 HWA GeoSciences Inc. Washington, on May 14, 2019 using a limited-access, Bobcat MT52 mounted tracked drill rig equipped with hollow stem augers. In each of the borings, Standard Penetration Test (SPT) sampling was performed using a 2-inch outside diameter split-spoon sampler driven by a 140-pound hammer raised using a rope and cathead. During the SPT, samples were obtained by driving the sampler 18 inches into the soil with the hammer free-falling 30 inches. The numbers of blows required for each 6 inches of penetration were recorded. The Standard Penetration Resistance (“N-value”) of the soil is calculated as the number of blows required for the final 12 inches of penetration. This resistance, or N-value, provides an indication of relative density of granular soils and the relative consistency of cohesive soils; both indicators of soil strength. Following evaluation of the subsurface conditions encountered in the borings, KPG selected three locations for small-scale Pilot Infiltration Testing (PIT). The PITs were completed in July 2019. The PITs were excavated by Harding and Sons, of Duvall, Washington, using a Case CX 80 Tracked Excavator. The PITs were performed at depths between 3 to 3.5 feet. The day following the PIT, the excavations were extended to depths of about 9 feet in order to evaluate receptor soils prior to backfilling. The locations of the PITs are shown on the Site Exploration Plans, Figures 2A through 2C. An HWA geotechnical engineer logged each exploration and recorded all pertinent information. Soil samples obtained from the explorations were classified in the field and representative portions were placed in plastic bags. These soil samples were then taken to our Bothell, Washington, laboratory for further examination and testing. Pertinent information including soil sample depths, stratigraphy, soil engineering characteristics, and ground water occurrence was recorded. The stratigraphic contacts shown on the individual exploration logs represent the approximate boundaries between soil types; actual transitions may be more gradual. The soil and ground water conditions depicted are only for the specific date and locations reported and, therefore, are not necessarily representative of other locations and times. A legend of the terms and symbols used on the exploration logs is presented in Figure A-1. Summary logs of the borehole explorations are presented in Figures A-2 through A-10. Summary PIT logs are presented in Figures A-11 through A-13. LABORATORY TESTING Representative soil samples obtained from the subsurface explorations were taken to the HWA laboratory for further examination and testing. Laboratory tests, as described below, were conducted on selected soil samples to characterize relevant engineering properties of the sampled soils. The tests included visual classifications, natural moisture contents, and grain size distributions. The tests were conducted in general accordance with appropriate American Society of Testing and Materials (ASTM) standards, as described below. The test results are December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 3 HWA GeoSciences Inc. also presented in Appendix B, and/or displayed on the exploration logs in Appendix A, as appropriate. Moisture Content of Soil: The moisture content of selected soil samples (percent by dry mass) was determined in accordance with ASTM D 2216. The results are shown on the logs in Appendix A. Particle Size Analysis of Soils: Selected samples were tested to determine the particle size distribution of material in accordance with ASTM D422 (wet sieve or wet/hydrometer method). The results are summarized on the attached Grain Size Distribution Reports, Figures B-1 through B-7, which also provide information regarding the classification of the samples and the moisture content at the time of testing. SITE DESCRIPTION The site is located in Renton, Washington, east of I-405 as shown on the Vicinity Map (Figure 1). The improvements proposed along NE 16th Street and Jefferson Avenue NE extend from the intersection of Harrington Avenue NE and NE 16th Street to NE 12th Street and Jefferson Avenue NE. Both roadways consist of one travel lane in each direction. Surrounding land use is predominately residential housing with an elementary school north of the intersection of NE 16th Street and Jefferson Avenue NE. The alignment slopes uphill from the intersection of Harrington Avenue NE and NE 16th Street to the high point, just east of the intersection of NE 16th Street and Jefferson Avenue NE. Elevation then descends along Jefferson Avenue NE to the low point of the alignment at the intersection of NE 12th Street and Jefferson Avenue NE. Elevation along the alignment varies from 355 to 383 feet. GENERAL GEOLOGIC CONDITIONS The site is in the central portion of the Puget Sound Lowland, an elongated topographic and structural depression bordered by the Cascade Mountains on the east and the Olympic Mountains on the west. The Lowland is characterized by low-rolling relief with some deeply cut ravines. In general, the ground surface elevation is within 500 feet of sea level. The Puget Lowland was filled to significant depths by glacial and non-glacial sediments during the Pleistocene Epoch, although bedrock does outcrop in scattered locations throughout the area. Generally, the rock is deeply buried by Pleistocene and recent sediments. Geologists have generally agreed that the Puget Sound area was subjected to four or more major glaciations during the Pleistocene Epoch. Ice for these glacial events originated in the Coastal Mountains and the Vancouver Range of British Columbia. The maximum southward advance of ice was about halfway between Olympia and Centralia. The Pleistocene stratigraphic record in the central portion of the Puget Lowland is a complex sequence of glacially-derived and interglacial sediments. Erosion of certain deposits, as well as local deposition of sediments, further complicate the geologic setting. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 4 HWA GeoSciences Inc. According to the Preliminary Geologic Map of Seattle and Vicinity, Washington (Waldron et. al., 1961), the project vicinity is primarily underlain by glacial till deposits. Glacial till soils were deposited along the sole of the glacial ice. They consist of an unsorted mixture of clay, silt, sand and gravel, which is very dense, having been consolidated by the weight of greater than 2,000 feet of ice. SUBSURFACE SOIL CONDITIONS The soils encountered in our explorations consist of near surface fill soils over recessional outwash and glacial till deposits. Further descriptions of soils encountered in our explorations are presented below in order of deposition, beginning with the most recently deposited. The exploration logs in Appendix A provide more detailed description of subsurface conditions observed at specific locations and depths. Fill: A layer of fill was encountered in borings BH-2, BH-5, BH-6, BH-8 and BH-9 and test pit PIT-3 from ground surface to approximately 1.5 to 6 feet bgs. Minor quantities of organics were observed in the fill. The fill consisted of very loose to medium dense, silty sand with gravel. The fill was likely placed during past grading and construction in the area. Recessional Outwash: Recessional outwash deposits were encountered in test pits PIT-1, PIT-2 and PIT-3 and borings BH-1, BH-3, BH-4 and BH-9. The recessional outwash generally consisted of loose to dense, clean to silty, sand with varying amounts of gravel. Test pit PIT-3 and borings BH-1, BH-3 and BH-9 were terminated in this deposit. Clean sand lenses were observed within this deposit. This unit was deposited in the meltwaters of the receding glacier and therefore is not as dense as glacially overridden deposits. These soils are likely the most feasible for stormwater infiltration. Glacial Till Deposits/Weathered Glacial Till Deposits: Test pits PIT-1 and PIT-2 and borings BH-4, BH-5, BH-6, BH-7 and BH-8 encountered glacial till, typically consisting of medium dense to very dense, silty sand with varying amounts of gravel. Clean sand lenses were observed within this deposit. Interlayered silty sand and clean sand layers were observed in BH-5 within the glacial till deposit. Till was encountered below fill or recessional outwash. Test pits PIT-1 and PIT-2 and borings BH-4, BH-5, BH-6, BH-7 and BH-8 were terminated in glacial till. Locally, the upper portions of the till are weathered, somewhat less dense and finer grained. Glacial till is locally referred to as "hardpan", because of its induration and an appearance similar to concrete. Till is relatively impermeable, except where sandy zones are encountered. Where sand overlies the till, water is often perched on top of the till. Glacial till is also known to contain scattered cobbles and boulders. GROUND WATER CONDITIONS During the explorations in July 2019, no ground water seepage was observed in the test pits (PIT-1 through PIT-3) at the time of excavation. The test pits were excavated in the dry season. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 5 HWA GeoSciences Inc. No ground water seepage was observed in any of the borings at the time of drilling (May 14, 2019). However, within the weathered till and recessional outwash deposits in borings BH-7, BH-8 and BH-9, oxidation (rust) staining was observed within the soils at depths below 5 feet below ground surface. This suggests that perched water may develop seasonally above the very dense glacial till deposits. We expect that the water is highest during the wet winter months and lowest during the dry summer months. INFILTRATION TESTING HWA conducted three, small-scale Pilot Infiltration Tests (PITs) between July 23 and 26, 2019 in general accordance with the 2017 City of Renton Surface Water Design Manual (SWDM), Reference Section 6-A. The excavations for the PITs were made by Harding and Sons, of Duvall, Washington, under subcontract to HWA. Each test location consisted of an approximate 19 to 23 square foot excavation to a native soil receptor depth, at approximately 3 to 3.5 feet below existing grade. The PIT excavation depth (D) and dimension of width by length (W x L) are as follows, PIT-1: 42 inches (D) by 42 x 78 inches (W x L), PIT-2: 43 inches (D) by 37 x 75 inches (W x L), PIT-3: 36 inches (D) by 38 x 80 inches (W x L). Infiltration testing was conducted by maintaining a stable water level in the excavations. Specific procedures and observations for the PITs are as follows: PIT-1: Water was introduced into the excavation with a garden hose and into a perforated diffuser pipe. Water rose to approximately 1.1 feet above the excavation bottom and remained at that level during the 6-hour presoaking period with the addition of approximately 3 gallons per minute (gpm) of water being introduced. Presoaking was followed by a 1-hour constant head test, with water level readings and instantaneous flow rates taken every 15 minutes. After one hour, the water was shut off and the falling head test was started at 3:15 PM on July 25, 2019, with stage at 1.1 feet. A datalogging level and pressure transducer recorded the fall in stage every 15 seconds and physical readings were also taken during the test. The water level reached the bottom of the excavation approximately 62 minutes after flow was terminated. Short-term hydraulic conductivity, determined using the rates from the falling head test, was approximately 10.7 inches per hour (in/hr). PIT-2: Water was introduced into the excavation with a garden hose and into a perforated diffuser pipe. Water rose to approximately 1.1 feet above the excavation bottom and remained at that level during the 6-hour presoaking period with the addition of approximately 0.2 gpm of water being introduced. Presoaking was followed by a 1-hour constant head test, with water level readings and instantaneous flow rates taken every 15 minutes. After one hour, the water was shut off and the falling head test was started at 3:00 PM on July 24, 2019, with stage at 1.1 feet. A datalogging level and pressure transducer recorded the fall in stage every 15 seconds. After 6.7 hours the water level was still at 0.5 feet in the excavation. Short-term hydraulic conductivity, determined using the rates from the falling head test, was approximately 1 in/hr. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 6 HWA GeoSciences Inc. PIT-3: Water was introduced into the excavation with a garden hose and into a perforated diffuser pipe. Water rose to approximately 1.1 feet above the excavation bottom and remained at that level during the 6-hour presoaking period with the addition of approximately 3.5 gpm of water being introduced. Presoaking was followed by a 1-hour constant head test, with water level readings and instantaneous flow rates taken every 15 minutes. After one hour, the water was shut off and the falling head test was started at 4:00 PM on July 23, 2019, with stage at 1.1 feet. A datalogging level and pressure transducer recorded the fall in stage every 15 seconds and physical readings were also taken during the test. The water level reached the bottom of the excavation approximately 45 minutes after flow was terminated. Short-term hydraulic conductivity, determined using the rates from the falling head test, was approximately 11.5 in/hr. After infiltration testing was completed, each PIT was over-excavated, and logged as test pits PIT-1 through PIT-3, to depths between 8.8 and 9 feet bgs. The purpose of test pitting through the PIT excavations was to determine adequate vertical separation from ground water/restrictive layers and to retrieve soil samples of the proposed receptor soils for laboratory testing. Ground water seepage or mounding of water was not observed in any test pit excavation. The water level data in feet per date and time for PIT-1 through PIT-3 is presented in Figures 3A through 3C. The falling head test data plotted in feet versus test time in min is presented in Figures 4A through 4B. Summary logs of the test pit explorations are presented in Appendix A, A-11 through -13. More information regarding the PIT procedure and results are presented later in this report. DESIGN RECOMMENDATIONS GENERAL Below any fill soils, the native subgrade soils consist of recessional outwash sands and glacial till (predominately silty sand with varying amounts of gravel). The results of our investigations and laboratory testing indicate that the some of the soils encountered along the project alignments have potential for stormwater infiltration facilities. Pilot Infiltration Tests (PITs) were completed in proposed infiltration locations to determine the design infiltration rates. Our analyses suggest that the beginning and end of the project alignment is suitable for use of onsite infiltration with design infiltration rates between 3.7 and 4.0. However, due to the presence of glacial till near the surface between Stations 17+00 and 24+00 on NE 16th Street and between Stations 70+00 and 81+00 on Jefferson Avenue NE, infiltration is limited to 0.3 in/hr. For permeable sidewalks proposed near glacial till, we recommend a reservoir of clean gravel be provided below the sidewalk to collect water and that an underdrain system be installed to convey excess stormwater to an appropriate outlet or stormwater system. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 7 HWA GeoSciences Inc. STORMWATER MANAGEMENT AND INFILTRATION RECOMMENDATIONS We understand infiltration of stormwater is desired using bioretention and pervious concrete sidewalks. The depth to the bottom of the facility for bioretention is proposed to be 3 to 3.5 feet bgs. The results of our infiltration feasibility analyses, based on widely spaced subsurface explorations and three Small-Scale Pilot Infiltration Tests (PIT), are described below. Measured Infiltration Rate Small-Scale Pilot Infiltration Testing (PIT) was performed in general accordance with the 2014 Stormwater Management Manual for Western Washington (SWMMWW), published by the Washington State Department of Ecology (Department of Ecology, 2014) and the City of Renton Surface Water Design Manual (Renton, 2017). The infiltration tests were performed at three locations, designated PIT-1 through PIT-3. Based on the test results, the measured infiltration rate from the falling head test are shown below in Table 1. The City of Renton Surface Water Design Manual (Renton, 2017) recommends correction factors be applied to the measured infiltration rate to obtain the design infiltration rate: For pervious pavement and bioretention facilities, the city recommends an Ftesting value of 0.5 be applied based on the number of tests (three) and length of area. Fgeometry is assumed to be 1 since ground water or impervious layers were not observed. Fplugging accounts for reductions in infiltration rates over the long term due to plugging of soils and a value of 0.7 is given for sandy loams. The design infiltration rates are shown below in Table 1 using the correction factors. Table 1. PIT Infiltration Rates Measured Infiltration Rate (in/hr) Design Infiltration Rate (in/hr) PIT-1 10.7 3.7 PIT-2 1.0 0.3 PIT-3 11.5 4.0 Infiltration Summary Our analyses suggest that the beginning and end of the project alignment is suitable for use of onsite infiltration. However, areas where glacial till is present near surface infiltration will be limited due to subsurface soil conditions. Specific recommendations are provided below. • Between Stations 0+00 and 17+00 on NE 16th Street we recommend a design rate of 3.7 in/hr, calculated from PIT-1, be used for bioretention and permeable sidewalk design. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 8 HWA GeoSciences Inc. • Due to the presence of glacial till near the surface between Stations 17+00 and 24+00 on NE 16th Street and between Stations 70+00 and 81+00 on Jefferson Avenue NE infiltration is limited to 0.3 in/hr. o We recommend that a reservoir of clean granular soils (washed gravel) be placed below the sidewalk in these areas. The reservoir should be sufficiently thick to collect stormwater and convey it to a drainage system. • Between Stations 81+00 and 83+96 on Jefferson Avenue NE we recommend a design rate of 4.0 in/hr, calculated from PIT-3, be used for bioretention and permeable sidewalk design. • Given that ground water seepage was not observed in the field explorations, the minimum 3-foot vertical separation requirement between the ground water and bottom of the infiltration facility is present in areas where infiltration is feasible. Construction Considerations for Infiltration Facilities Prior to the installation of infiltration facilities, the subgrade should be cut to the proposed receptor soil. A flat subgrade is preferred for the bottom of the infiltration facilities. The existing subgrade under areas used for infiltration should NOT be compacted or subjected to excessive construction equipment traffic prior to coarse aggregate bed placement. Where erosion of subgrade has caused accumulation of fine materials and/or surface ponding, this material shall be removed with light equipment and the underlying soils scarified to a minimum depth of 8 inches. Our recommended design infiltration rate assumes that soils will be monitored during trench excavation to ensure low permeability layers or lenses are removed. Subsurface conditions should be monitored and verified during construction by a qualified soil inspector. Construction of the proposed infiltration facilities will require excavations within recessional outwash soils that may contain cobbles and or boulders. Therefore, perspective contractors should be prepared to encounter and remove cobbles and bounders during excavations for the proposed trenches. Temporary Excavations It is our understanding that the proposed storm water facility is to extend approximately 3 to 3.5 feet below existing grade. Sloped excavations and/or standard trench box shoring may be used as means of temporary shoring, if required. The maintenance of safe working conditions, including temporary excavation stability, is the responsibility of the contractor. In accordance with Part N of Washington Administrative Code (WAC) 296-155, latest revisions, all temporary cuts in excess of 4 feet in height must be either sloped or shored prior to entry by personnel. The existing granular soils on site are generally classified as Type C soils, per WAC 296-155. Where shoring is not used, temporary cuts in Type C soils should be sloped no steeper than 1½H:1V (horizontal: vertical). Flatter side slopes could be required for excavations below the water table or where ground water seepage is present. December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 9 HWA GeoSciences Inc. The contractor should monitor the stability of the temporary excavations and adjust the construction schedule and slope inclination accordingly. The contractor should be responsible for control of ground and surface water and should employ sloping, slope protection, ditching, sumps, dewatering, and other measures, as necessary, to prevent sloughing of soils and heave of the bottom of the excavation. CONDITIONS AND LIMITATIONS We have prepared this report for KPG and the City of Renton for use in design of a portion of this project. This report should be provided in its entirety to prospective contractors for bidding and estimating purposes; however, the conclusions and interpretations presented herein should not be construed as a warranty of the subsurface conditions. Experience shows that soil and ground water conditions can vary significantly over small distances. Inconsistent conditions may occur between explorations that may not be detected by a geotechnical study. If, during future site operations, subsurface conditions are encountered which vary appreciably from those described herein, HWA should be notified to review the recommendations made in this report, and revise, if necessary. If there is a substantial lapse of time between submission of this report and the start of construction, or if conditions change due to construction operations, it is recommended that this report be reviewed to determine the applicability of the conclusions and recommendations considering the changed conditions and time lapse. This report is issued with the understanding that it is the responsibility of the owner, or the owners’ representative, to ensure that the information and recommendations are brought to the attention of the appropriate design team personnel and incorporated into the project plans and specifications, and the necessary steps are taken to see that the contractor and subcontractors carry out such recommendations in the field. Within the limitations of scope, schedule and budget, HWA attempted to execute these services in accordance with generally accepted professional principles and practices in the fields of geotechnical engineering and engineering geology at the time the report was prepared. No warranty, express or implied, is made. The scope of our work did not include environmental assessments or evaluations regarding the presence or absence of wetlands or hazardous or toxic substances in the soil, surface water, or ground water at this site. This firm does not practice or consult in the field of safety engineering. We do not direct the contractor’s operations and cannot be responsible for the safety of personnel other than our own on the site. As such, the safety of others is the responsibility of the contractor. The contractor should notify the owner if any of the recommended actions presented herein are considered unsafe.    December 4, 2019 HWA Project No. 2018-167-21 2018-167-21 Letter Report 11 HWA GeoSciences Inc. REFERENCES City of Renton, 2017, Surface Water Design Manual, City of Renton Public Works Department Surface Water Utility, dated December 12, 2016 Waldron, H. et Al., 1961, Preliminary geologic map of Seattle and vicinity, Washington: U.S. Geological Survey, Open-File Report OF-61-168, scale 1:24,000 Washington State Department of Ecology, 2014, Stormwater Management Manual for Western Washington, as Amended in December 2014. VICINITY MAP NE 16TH STREET – JEFFERSON AVENUE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON 1 2018-167-21 FIGURE NO. PROJECT NO. MAP NOT TO SCALE BASE MAP FROM GOOGLE EARTH DATA © 2018 GOOGLE © 2016 Microsoft MDA Geospatial Services Inc. N Approximate Project Location FIGURE NO. PROJECT NO. SITE AND EXPLORATION PLANS NE 16TH STREET- JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON 2A 2018-167-21 BASE PLANS PROVIDED BY KPG FIGURE NO. PROJECT NO. SITE AND EXPLORATION PLANS NE 16TH STREET- JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON 2B 2018-167-21 BASE PLANS PROVIDED BY KPG FIGURE NO. PROJECT NO. SITE AND EXPLORATION PLANS NE 16TH STREET- JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON 2C 2018-167-21 BASE PLANS PROVIDED BY KPG 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 Ground Water Level (ft)Date and Time PIT-1 WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO. NE 16TH STREET-JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (3:15 PM). 3A 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 Ground Water Level (ft)Date and Time PIT-2 WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO. NE 16TH STREET-JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (3:00 PM). 3B 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 Ground Water Level (ft)Date and Time PIT-3 WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO.NE 16TH STREET-JEFFERSON AVE NESTORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (4:00 PM). 3C y = -0.0016x + 1.1759 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 Ground Water Level (ft)Time (min) PIT-2 FALLING HEAD TEST WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO.NE 16TH STREET-JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (3:00 PM) 4A y = -0.0162x + 1.0177 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 Ground Water Level (ft)Time (min) PIT-1 FALLING HEAD TEST WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO.NE 16TH STREET-JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (3:15 PM) 4B y = -0.0239x + 0.9648 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 Ground Water Level (ft)Time (min) PIT-3 FALLING HEAD TEST WATER LEVEL DATA PIT WATER LEVEL DATA 2018-167 FIGURE NO. PROJECT NO.NE 16TH STREET-JEFFERSON AVE NE STORMWATER GREEN CONNECTIONS RENTON, WASHINGTON Start of falling head test (4:00 PM) 4C APPENDIX A HWA EXPLORATION LOGS SYMBOLS USED ON EXPLORATION LOGS LEGEND OF TERMS AND to 30 over 30 ApproximateUndrained ShearStrength (psf) <250 250 - No. 4 Sieve Sand with Fines (appreciable amount of fines) amount of fines) More than 50% Retained on No. 200 Sieve Size Sand and Sandy Soils Clean Gravel (little or no fines) More than 50% of Coarse Fraction Retained on No. 4 Sieve Gravel with SM SC ML MH CH OH RELATIVE DENSITY OR CONSISTENCY VERSUS SPT N-VALUE Very Loose Loose Medium Dense Very Dense Dense N (blows/ft) 0 to 4 4 to 10 10 to 30 30 to 50 over 50 ApproximateRelative Density(%) 0 - 15 15 - 35 35 - 65 65 - 85 85 - 100 COHESIVE SOILS Consistency Very Soft Soft Medium Stiff Stiff Very Stiff Hard N (blows/ft) 0 to 2 2 to 4 4 to 8 8 to 15 15 Clean Sand (little or no fines) 50% or More of Coarse Fraction Passing Fine Grained Soils Silt and Clay Liquid Limit Less than 50% 50% or More Passing No. 200 Sieve Size Silt and Clay Liquid Limit 50% or More 500 500 - 1000 1000 - 2000 2000 - 4000 >4000 DensityDensity USCS SOIL CLASSIFICATION SYSTEM Coarse Grained Soils Gravel and Gravelly Soils Highly Organic Soils GROUP DESCRIPTIONS Well-graded GRAVEL Poorly-graded GRAVEL Silty GRAVEL Clayey GRAVEL Well-graded SAND Poorly-graded SAND Silty SAND Clayey SAND SILT Lean CLAY Organic SILT/Organic CLAY Elastic SILT Fat CLAY Organic SILT/Organic CLAY PEAT MAJOR DIVISIONS GW SP CL OL PT GP GM GC SW COHESIONLESS SOILS Fines (appreciable LEGEND 00000.GPJ 2/27/15 Coarse sand Medium sand SIZE RANGE Larger than 12 in Smaller than No. 200 (0.074mm) Gravel time of drilling) Groundwater Level (measured in well or AL CBR CN Atterberg Limits:LL = Liquid Limit California Bearing Ratio Consolidation Resilient Modulus Photoionization Device Reading Pocket Penetrometer Specific Gravity Triaxial Compression Torvane 3 in to 12 in 3 in to No 4 (4.5mm) No. 4 (4.5 mm) to No. 200 (0.074 mm) COMPONENT DRY Absence of moisture, dusty, dry to the touch. MOIST Damp but no visible water. WET Visible free water, usually soil is below water table. Boulders Cobbles Coarse gravel Fine gravel Sand MOISTURE CONTENT COMPONENT PROPORTIONS Fine sand Silt and Clay 5 - 12% PROPORTION RANGE DESCRIPTIVE TERMS Clean Slightly (Clayey, Silty, Sandy) 30 - 50% Components are arranged in order of increasing quantities. Very (Clayey, Silty, Sandy, Gravelly) 12 - 30%Clayey, Silty, Sandy, Gravelly open hole after water level stabilized) Groundwater Level (measured at 3 in to 3/4 in 3/4 in to No 4 (4.5mm) No. 4 (4.5 mm) to No. 10 (2.0 mm) No. 10 (2.0 mm) to No. 40 (0.42 mm) No. 40 (0.42 mm) to No. 200 (0.074 mm) PL = Plastic Limit DD DS GS K MD MR PID PP SG TC TV Dry Density (pcf) Direct Shear Grain Size Distribution Permeability Approx. Shear Strength (tsf) Percent Fines%F Moisture/Density Relationship (Proctor) Approx. Compressive Strength (tsf) Unconfined CompressionUC (140 lb. hammer with 30 in. drop) Shelby Tube Small Bag Sample Large Bag (Bulk) Sample Core Run Non-standard Penetration Test 2.0" OD Split Spoon (SPT) NOTES: Soil classifications presented on exploration logs are based on visual and laboratory observation. Density/consistency, color, modifier (if any) GROUP NAME, additions to group name (if any), moisture content. Proportion, gradation, and angularity of constituents, additional comments. (GEOLOGIC INTERPRETATION) Please refer to the discussion in the report text as well as the exploration logs for a morecomplete description of subsurface conditions. Soil descriptions are presented in the following general order: < 5% 3-1/4" OD Split Spoon with Brass Rings (3.0" OD split spoon) TEST SYMBOLS SAMPLE TYPE SYMBOLS GROUNDWATER SYMBOLS COMPONENT DEFINITIONS NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington PROJECT NO.:2018-167-21 A-1FIGURE: GS GS/ HYD S-1 S-2 S-3 S-4 Loose, light yellow brown, silty, SAND, moist. (RECESSIONAL OUTWASH) Loose, yellow brown to olive brown, silty, fine to medium SAND, with scattered gravel, moist. Loose, olive brown, silty, fine to medium SAND, moist. Scattered coarse sand. Minor rust mottling and root debris. Dense, olive brown, slightly rounded gravelly, silty, fine to medium SAND, moist. 1/2" sand lense observed. Dense, olive brown, slightly silty, fine to medium SAND, with scattered coarse sand and gravel, moist. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 5-4-3 2-3-5 14-21-25 10-11-21 SM SM SP SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 360 355ELEVATION(feet)BH-1 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-2 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2A DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 365.0 feet Medium dense to loose, dark brown, silty, fine to medium SAND, moist. Concrete encountered at 2 feet. (FILL/ TOPSOIL) Borehole terminated at 2 feet below ground surface (bgs). Borehole encountered concrete at 2 feet bgs, potential utility. No ground water seepage observed. SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 365 360 355ELEVATION(feet)BH-2 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-3 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2A DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 366.0 feet GS/HYD GS S-1 S-2 S-3 S-4 Medium dense, olive brown, slightly gravelly, silty SAND, moist. (RECESSIONAL OUTWASH) Dense, olive brown, slightly gravelly, silty, fine to medium SAND, moist. Dense, olive gray, slightly gravelly, silty SAND, moist. Clean sand lenses from 1 to 3" thick. Medium dense, olive brown, slightly silty, medium SAND, moist with scattered rounded coarse sand and gravel. Same, sample grades clean. Scattered rounded gravel. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 12-20-21 11-17-13 9-8-8 9-12-18 SM SM SP SM SP BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 375 370 365ELEVATION(feet)BH-3 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-4 Standard Penetration Test DATE COMPLETED: 5/14/2019 DATE STARTED: 5/14/2019DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig SAMPLING METHOD: SPT with Cathead LOCATION: See Figure 2A LOGGED BY: S. Khandaker SURFACE ELEVATION: 379.0 feet GS GS/ HYD S-1 S-2 S-3 S-4 Medium dense, olive gray, slightly silty, fine to medium SAND, moist. (RECESSIONAL OUTWASH) Dense, olive gray, silty SAND, moist. MInor rust mottling with scattered gravel. Dense, olive gray, slightly rounded gravelly, silty, fine to medium SAND, moist. 1/2" sand lense. (WEATHERED TILL) Dense, olive gray, slightly gravelly, silty, SAND, moist. 2" of clean medium sand at toe. Dense, olive gray, silty, fine to medium sandy, rounded GRAVEL, moist. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 11-16-17 7-14-19 15-16-18 13-21-17 SM SM GM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 375 370ELEVATION(feet)BH-4 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-5 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2B DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 380.0 feet GS/ HYD GS S-1 S-2 S-3 S-4 4 Inches Hot Mix Asphalt (HMA) Loose, brown, silty, rounded gravelly, fine to medium SAND, moist. Minor organics and rust mottling. (FILL) Medium dense, olive brown, gravelly, silty, fine to medium SAND, moist. Roots and minor rust mottling. Medium dense, olive gray, gravelly, silty, fine to medium SAND, moist. (WEATHERED TILL) Dense, olive gray, silty, rounded gravelly, fine to medium SAND, moist. Clean sand lense at toe of sample. Dense, olive gray, silty, fine to medium SAND, with scattered gravel, moist. 3-4" alternating layers of clean and silty sand. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 6-5-3 4-7-10 18-17-15 9-16-17 SM SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 375 370ELEVATION(feet)BH-5 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-6 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2B DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 380.0 feet GS GS/HYD S-1 S-2 S-3a S-3b S-4 3 Inches Hot Mix Asphalt (HMA) Medium dense, olive gray to yellow brown, gravelly, silty, fine to medium SAND, moist. MInor rust mottling and 1/2" black organics. (FILL) Dense, olive gray- olive brown, gravelly, silty, fine to medium SAND, moist. Minor rust mottling. (WEATHERED TILL) Very dense, olive gray, slightly rounded gravelly, silty, fine to medium SAND, moist. 2" of clean medium sand at toe. (TILL) Low Recovery. Dense, olive gray, gravelly, very silty, fine to medium SAND, moist. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 4-6-6 4-15-16 20-27-30 12-22-24 SM SM SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 380 375 370ELEVATION(feet)BH-6 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-7 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2B DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker >> SURFACE ELEVATION: 381.0 feet GS/HYD GS S-1 S-2 S-3 S-4 3-4 Inches Hot Mix Asphalt (HMA) Medium dense, olive brown, slightly gravelly, silty, fine to medium SAND, moist. (WEATHERED TILL) Low Recovery. Medium dense, olive brown, rounded gravelly, very silty, fine to medium SAND, moist. Heavily rust mottled. Low Recovery. Very dense, olive gray, gravelly, very silty, fine to coarse SAND, moist. Sample contains more coarse sand and fine gravel than sample above. (TILL) Dense, olive gray, gravelly, silty, fine to medium SAND, moist. Diamicton observed. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 9-9-9 5-10-11 12-24-35 12-23-25 SM SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 375 370ELEVATION(feet)BH-7 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-8 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2C DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker >> SURFACE ELEVATION: 380.0 feet GS/ HYD GS S-1 S-2 S-3 S-4 3 Inches Hot Mix Asphalt (HMA) Very loose, light yellow brown, silty, gravelly, fine to medium SAND, moist. Minor organics and root debris. 2" gravel in sample. (FILL) Dense, olive gray, slightly rounded gravelly. silty, fine to medium SAND, moist. Heavily rust mottled. (WEATHERED TILL) Dense, olive gray, gravelly, silty, fine to medium SAND, moist. 1" clean sand lense observed. Same, sample grades less silty. 1" clean sand lense at toe of sample. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 1-2-1 6-13-17 16-17-16 12-21-22 SM SM BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 365 360ELEVATION(feet)BH-8 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-9 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2C DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 370.0 feet GS/ HYD GS S-1 S-2 S-3 S-4 4 Inches Hot Mix Asphalt (HMA) Medium dense, light yellow brown, silty, gravelly, fine to medium SAND, moist. (FILL) Low Recovery. Medium dense, olive brown, silty, fine to medium SAND, with scattered gravel, moist. Driller notes gravelly drilling action. (RECESSIONAL OUTWASH) Medium dense, olive gray, slightly silty, fine to medium SAND, moist. Minor rust mottling. Medium dense, gray to olive gray, fine to medium clean SAND, moist. Heavily rust mottled orange at toe. Minor root debris. Borehole terminated at 11.5 feet below ground surface (bgs). No ground water seepage observed. Borehole abandoned with bentonite chips. 3-5-5 4-6-6 9-9-8 5-8-6 SM SM SP SM SP BORING-DSM 2018-167-21.GPJ 5/29/19 FIGURE:PROJECT NO.:2018-167-21 Renton, Washington Stormwater Green Connections NE 16th Street- Jefferson Ave NEDEPTH(feet)0 5 10 15 355 350ELEVATION(feet)BH-9 PAGE: 1 of 1(blows/6 inches)GROUNDWATERPEN. RESISTANCELiquid LimitSYMBOL0 10 20 30 40 50 0 20 40 60 80 100SAMPLE TYPESAMPLE NUMBERNatural Water ContentUSCS SOIL CLASSWater Content (%) NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated DESCRIPTION OTHER TESTSPlastic Limit BORING: and therefore may not necessarily be indicative of other times and/or locations. (140 lb. weight, 30" drop) Blows per foot A-10 Standard Penetration Test DATE COMPLETED: 5/14/2019 DRILLING COMPANY: Geologic Drill Partners, Inc. DRILLING METHOD: HWA with Mini BobCat Drill Rig LOCATION: See Figure 2C DATE STARTED: 5/14/2019 SAMPLING METHOD: SPT with Cathead LOGGED BY: S. Khandaker SURFACE ELEVATION: 360.0 feet APPENDIX B LABORATORY TEST RESULTS 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-1 BH-1 BH-3 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SM) Light olive-brown, silty SAND (SM) Olive-brown, silty SAND (SM) Olive-brown, silty SAND 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 4.6 5.7 2.5 - 4.0 5.0 - 6.5 5.0 - 6.5 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel% 6.4 1.5 6.2 Sand% 18.8 50 74.7 76.5 70.9 17.4 17.1 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-1 S-2 S-2 % MC 11 11 10 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-1 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-3 BH-4 BH-4 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SP-SM) Brownish-gray, poorly graded SAND with silt (SM) Brownish-gray, silty SAND (SM) Olive-brown, silty SAND 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 3.1 7.5 - 9.0 2.5 - 4.0 5.0 - 6.5 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel% 5.1 2.1 2.6 Sand% 11.3 26.2 50 83.6 71.7 72.7 21.7 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-3 S-1 S-2 % MC 12 10 13 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-2 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-5 BH-5 BH-6 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SM) Olive-brown, silty SAND with gravel (SM) Brownish-gray, silty SAND (SM) Olive-brown, silty SAND 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 4.47.5 - 9.0 10.0 - 11.5 2.5 - 4.0 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel% 17.3 5.3 14.4 Sand% 21.3 22.9 50 62.7 73.4 62.8 15.6 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-3 S-4 S-1 % MC 9 15 13 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-3 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-6 BH-7 BH-7 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SM) Olive-brown, silty SAND (SM) Olive-brown, silty SAND (SM) Olive-brown, silty SAND with gravel 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 4.9 5.8 7.5 - 8.8 2.5 - 4.0 10.0 - 11.5 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel% 3.6 7.5 25.3 Sand% 20.6 50 74.2 60.2 54.1 17.3 26.5 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-3a S-1 S-4 % MC 12 11 10 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-4 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-8 BH-8 BH-9 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SM) Light olive-brown, silty SAND (SM) Olive-brown, silty SAND with gravel (SM) Yellowish-brown, silty SAND 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 3.0 1.9 5.0 - 6.5 7.5 - 9.0 2.5 - 4.0 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel% 11.4 15.6 13.5 Sand% 25.3 50 70.5 59.1 69.8 15.1 14.8 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-2 S-3 S-1 % MC 8 11 7 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-5 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110 CLAYSILT 3/4" BH-9 3" 1-1/2" Fines%PERCENT FINER BY WEIGHT#4 #200 (SP-SM) Olive-brown, poorly graded SAND with silt 0.00050.005 Clay%LL PL GRAVEL 0.05 5/8" 70 #100 0.5 Silt% 7.5 - 9.0 #10 30 Medium GRAIN SIZE IN MILLIMETERS 50 SAMPLE PI Gravel%Sand% 9.0 50 91.0 90 10 DEPTH ( ft.) PARTICLE-SIZE ANALYSIS OF SOILS METHOD ASTM D6913 S-3 % MC 10 Fine Coarse U.S. STANDARD SIEVE SIZES SAND B-6 Coarse #60#40 ASTM SOIL CLASSIFICATION #20 Fine 3/8" 5 SYMBOL 2018-167-21PROJECT NO.: HWAGRSZ SILT-CLAY PERCENTAGE 2018-167-21.GPJ 05/29/19 FIGURE: NE 16th Street- Jefferson Ave NE Stormwater Green Connections Renton, Washington City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX E – Cost Estimate Details · Bid Estimate (Schedule A – Grant-Funded Work) · Bid Estimate (Entire Project) NE 16th St & Jefferson Ave NE Stormwater Green Connections Project Construction Cost Estimate BID Documents (Draft) March 2020 (Revised June 2020) No.Spec. Section Payment Section Description Quantity Unit Unit Cost Total BID SCHEDULE A - ROADWAY AND STORMWATER IMPROVEMENTS A1 1-04 1-09 Minor Change 1 EST 52,500$ 52,500$ A2 1-05 1-09 Construction Surveying, Staking and As-Built Drawings 1 LS 31,875$ 31,875$ A3 1-07 1-09 SWPPP and TESC Plan and Implementation 1 LS 45,000$ 45,000$ A4 1-07 1-09 SPCC Plan 1 LS 2,500$ 2,500$ A5 1-07 1-09 Resolution of Utility Conflicts 1 EST 15,000$ 15,000$ A6 1-07 1-09 Utility Potholing 4 EA 1,000$ 4,000$ A7 1-07 1-09 COVID-19 Health and Safety Plan (CHSP)1 LS 500$ 500$ A8 1-07 1-09 COVID-19 Added Measures (Without Overhead & Profit)1 EST 1,500$ 1,500$ A9 1-08 1-09 Type B Progress Schedule (Minimum Bid $10,000)1 LS 10,000$ 10,000$ A10 1-09 1-09 Mobilization and Demobilization (Maximum Bid 10% of Schedule A Total)1 LS 191,250$ 191,250$ A11 1-10 1-09 Project Temporary Traffic Control 1 LS 206,250$ 206,250$ A12 1-10 1-09 Traffic Control Supervisor 1 LS 42,000$ 42,000$ A13 2-01 1-09 Clearing and Grubbing 1 LS 19,000$ 19,000$ A14 2-02 1-09 Removal of Structure and Obstruction 1 LS 26,000$ 26,000$ A15 2-02 1-09 Sawcutting 1300 LF 4$ 5,200$ A16 2-02 1-09 Removal and Replacement of Unsuitable Foundation Excavation 230 TON 27$ 6,210$ A17 2-03 1-09 Roadway Excavation Incl. Haul 2750 CY 35$ 96,250$ A18 2-09 1-09 Trench Safety Systems 1 LS 10,000$ 10,000$ A19 4-04 1-09 Crushed Surfacing Base Course 3040 TON 40$ 121,600$ A20 4-04 1-09 Permeable Ballast 490 TON 35$ 17,150$ A21 5-04 1-09 HMA Cl. 1/2" PG 64-22 1490 TON 110$ 163,900$ A22 5-04 1-09 Commercial HMA for Driveway 110 TON 100$ 11,000$ A23 5-04 1-09 Planing Bituminous Pavement 360 SY 12$ 4,320$ A24 5-07 1-09 Temporary Pavement 150 TON 150$ 22,500$ A25 6-13 1-09 Modular Block Wall 330 SF 40$ 13,200$ A26 7-01 1-09 Underdrain Pipe, 8 In. Diam.450 LF 40$ 18,000$ A27 7-01 1-09 Underdrain Aggregate 125 CY 60$ 7,500$ A28 7-04 1-09 Solid Wall PVC Storm Sewer Pipe 8 In. Diam.295 LF 60$ 17,700$ A29 7-04 1-09 Polypropylene Storm Sewer Pipe 12 In. Diam.1610 LF 80$ 128,800$ A30 7-04 1-09 Polypropylene Storm Sewer Pipe 18 In. Diam.550 LF 100$ 55,000$ A31 7-04 1-09 Ductile Iron Storm Sewer Pipe 8 In. Diam.340 LF 80$ 27,200$ A32 7-04 1-09 Ductile Iron Storm Sewer Pipe 12 In. Diam.135 LF 90$ 12,150$ A33 7-04 1-09 Ductile Iron Storm Sewer Pipe 18 In. Diam.70 LF 115$ 8,050$ A34 7-04 1-09 Gravel Borrow for Trench Backfill - Storm 1200 TON 30$ 36,000$ A35 7-04 1-09 CCTV Inspection 3000 LF 4$ 12,000$ A36 7-05 1-09 Concrete Inlet 1 EA 1,000$ 1,000$ A37 7-05 1-09 Catch Basin Type 1 30 EA 1,400$ 42,000$ A38 7-05 1-09 Catch Basin Type 1L 18 EA 1,600$ 28,800$ A39 7-05 1-09 Catch Basin Type 2 48 In. Diam.9 EA 3,600$ 32,400$ A40 7-05 1-09 Catch Basin Type 2 54 In. Diam.1 EA 5,000$ 5,000$ A41 7-05 1-09 Adjust Storm Drain Structure 3 EA 700$ 2,100$ A42 7-05 1-09 Adjust Sewer Manhole 7 EA 700$ 4,900$ A43 7-05 1-09 Connection to Existing Drainage Structure 4 EA 1,000$ 4,000$ A44 7-05 1-09 Filterra 4'x4'4 EA 25,000$ 100,000$ A45 7-06 1-09 Trench Excavation for Bioretention Cell 500 CY 35$ 17,500$ A46 7-06 1-09 Vertical Wall for Bioretention Cell 100 SF 80$ 8,000$ A47 7-06 1-09 Streambed Cobbles 12 TON 100$ 1,200$ A48 8-02 1-09 Property Restoration 1 EST 50,000$ 50,000$ A49 8-02 1-09 Seeded Lawn Installation 1300 SY 3$ 3,900$ A50 8-02 1-09 Topsoil Type A 280 CY 75$ A51 8-02 1-09 Bioretention Media 345 CY 65$ 22,425$ A52 8-02 1-09 Bark or Wood Chip Mulch 6 CY 75$ 450$ A53 8-02 1-09 Coarse Compost 12 CY 75$ 900$ A54 8-02 1-09 PSIPE Parrotia persica 'Vanessa'/ Vanessa Persian Ironwood; 2.5" Cal., 12'-14' Ht. 12 EA 550$ A55 8-02 1-09 PSIPE Crataegus x lavallei/ Lavalle Hawthorn; 2.5" Cal., 12'-14' Ht. 10 EA 550$ A56 8-02 1-09 PSIPE Maackia amurensis 'JFS-Schichtel1'/ Maacnificent Maackia; 2.5" Cal., 12'-14' Ht. 10 EA 550$ A57 8-02 1-09 PSIPE Tilia Cordata 'Chancole'/ Chancellor Linden; 2.5" Cal., 12'-14' Ht. 5 EA 550$ A58 8-02 1-09 PSIPE Spiraea betulifolia 'Tor'/ Tor Birchleaf Spirea; 2 Gal. Cont. 74 EA 28$ 2,072$ A59 8-02 1-09 PSIPE Rhododendron 'Purple Gem'/ Purple Gem Rhododendron; 2 Gal. Cont. 106 EA 28$ 2,968$ A60 8-02 1-09 PSIPE Cornus stolonifera 'Kelseyii'/ Kelseyii Red-Twig Dogwood; 1 Gal. Cont. 221 EA 22$ 4,862$ A61 8-02 1-09 PSIPE Mahonia repens/ Low Oregon Grape; 1 Gal. Cont. 240 EA 18$ 4,320$ A62 8-02 1-09 PSIPE Polystichum munitum/ Sword Fern; 1 Gal. Cont. 346 EA 18$ 6,228$ A63 8-02 1-09 PSIPE Achillea millefolium 'Walther Funcke'/ Walther Funcke Common Yarrow; 1 Gal. Cont. 70 EA 15$ 1,050$ A64 8-02 1-09 PSIPE Guem 'Mangl Lassi'/ Mango Lassi Avens; 1 Gal. Cont. 30 EA 15$ 450$ A65 8-02 1-09 PSIPE Rubus pentalobus/ Creeping Bramble; 1 Gal. Cont. 460 EA 15$ 6,900$ A66 8-02 1-09 PSIPE Juncus ensifolius/ Dagger-leaf Rush; Gal. Cont. 150 EA 15$ 2,250$ 1 of 2 No.Spec. Section Payment Section Description Quantity Unit Unit Cost Total A67 8-02 1-09 PSIPE Juncus tenuis 'Blue Dart'/ Blue Dart Rush; Gal. Cont. 130 EA 15$ 1,950$ A68 8-02 1-09 PSIPE Eleocharis palustris/ Common Spikerush; Gal. Cont. 225 EA 15$ 3,375$ A69 8-02 1-09 PSIPE Iris tenax/ Tough-Leaf Iris; Gal. Cont. 125 EA 15$ 1,875$ A70 8-02 1-09 Root Barrier 592 LF 12$ A71 8-04 1-09 Cement Conc. Traffic Curb and Gutter 4260 LF 25$ 106,500$ A72 8-04 1-09 Cement Conc. Traffic Curb 50 LF 60$ 3,000$ A73 8-06 1-09 Cement Conc. Driveway Entrance 980 SY 55$ 53,900$ A74 8-12 1-09 Chain Link Fence - 3-Ft Height 70 LF 22$ 1,540$ A75 8-12 1-09 Chain Link Fence - 4-Ft Height 210 LF 25$ 5,250$ A76 8-12 1-09 Single 6-Ft. Chain Link Gate 2 EA 600$ 1,200$ A77 8-12 1-09 Wood Fence - Type 1 50 LF 70$ 3,500$ A78 8-12 1-09 Wood Fence - Type 2 40 LF 45$ 1,800$ A79 8-12 1-09 Wood Fence - Type 3 130 LF 50$ 6,500$ A80 8-12 1-09 Wood Fence - Type 4 35 LF 40$ 1,400$ A81 8-13 1-09 Monument Case and Cover 2 EA 1,500$ 3,000$ A82 8-14 1-09 Pervious Cement Conc. Sidewalk 1510 SY 70$ 105,700$ A83 8-14 1-09 Cement Conc. Sidewalk 80 SY 40$ 3,200$ A84 8-14 1-09 Colored Cement Conc. Sidewalk 40 SY 80$ 3,200$ A85 8-14 1-09 Cement Conc. Driveway 510 SY 55$ 28,050$ A86 8-14 1-09 Cement Conc. Curb Ramp Type Parallel A 5 EA 2,000$ 10,000$ A87 8-14 1-09 Cement Conc. Curb Ramp Type Combination 1 EA 2,000$ 2,000$ A88 8-14 1-09 Cement Conc. Curb Ramp Type Perpendicular A 4 EA 2,000$ 8,000$ A89 8-14 1-09 Cement Conc. Curb Ramp Type Perpendicular B 5 EA 2,000$ 10,000$ A90 8-14 1-09 Cement Conc. Curb Ramp Type Single Direction A 1 EA 2,000$ 2,000$ A91 8-14 1-09 Cement Conc. Stair Connection 50 SF 100$ 5,000$ A92 8-18 1-09 Relocate Mailbox 20 EA 500$ 10,000$ A93 8-19 1-09 Adjust Gas Valve 2 EA 500$ 1,000$ A94 8-19 1-09 Adjust Franchise Utility Vault/Manhole 1 EA 950$ 950$ A95 8-21 1-09 Permanent Signing 1 LS 3,500$ 3,500$ A96 8-22 1-09 Plastic Stop Line 110 LF 6$ 660$ A97 8-22 1-09 Plastic Crosswalk Line 500 SF 5$ 2,500$ A98 8-22 1-09 Paint Line 110 LF 2$ 220$ A99 8-22 1-09 Removing Existing Pavement Markings 1 LS 1,500$ 1,500$ A100 8-26 1-09 Handrail 4 LF 250$ 1,000$ Schedule A - Roadway Improvements Subtotal 2,190,050$ Grant Ineligible Costs 2 of 2 NE 16th St & Jefferson Ave NE Stormwater Green Connections Project Construction Cost Estimate Bid Document Submittal June 2020 No.Spec. Section Payment Section Description Quant. Unit Unit Cost Total BID SCHEDULE A - ROADWAY AND STORMWATER IMPROVEMENTS A1 1-04 1-09 Minor Change 1 EST 52,500$ 52,500$ A2 1-05 1-09 Construction Surveying, Staking and As-Built Drawings 1 LS 31,875$ 31,875$ A3 1-07 1-09 SWPPP and TESC Plan and Implementation 1 LS 45,000$ 45,000$ A4 1-07 1-09 SPCC Plan 1 LS 2,500$ 2,500$ A5 1-07 1-09 Resolution of Utility Conflicts 1 EST 15,000$ 15,000$ A6 1-07 1-09 Utility Potholing 4 EA 1,000$ 4,000$ A7 1-07 1-09 COVID-19 Health and Safety Plan (CHSP)1 LS 500$ 500$ A8 1-07 1-09 COVID-19 Added Measures (Without Overhead & Profit)1 EST 1,500$ 1,500$ A9 1-08 1-09 Type B Progress Schedule (Minimum Bid $10,000)1 LS 10,000$ 10,000$ A10 1-09 1-09 Mobilization and Demobilization (Maximum Bid 10% of Schedule A Total)1 LS 191,250$ 191,250$ A11 1-10 1-09 Project Temporary Traffic Control 1 LS 206,250$ 206,250$ A12 1-10 1-09 Traffic Control Supervisor 1 LS 42,000$ 42,000$ A13 2-01 1-09 Clearing and Grubbing 1 LS 19,000$ 19,000$ A14 2-02 1-09 Removal of Structure and Obstruction 1 LS 26,000$ 26,000$ A15 2-02 1-09 Sawcutting 1300 LF 4$ 5,200$ A16 2-02 1-09 Removal and Replacement of Unsuitable Foundation Excavation 230 TON 27$ 6,210$ A17 2-03 1-09 Roadway Excavation Incl. Haul 2750 CY 35$ 96,250$ A18 2-09 1-09 Trench Safety Systems 1 LS 10,000$ 10,000$ A19 4-04 1-09 Crushed Surfacing Base Course 3040 TON 40$ 121,600$ A20 4-04 1-09 Permeable Ballast 490 TON 35$ 17,150$ A21 5-04 1-09 HMA Cl. 1/2" PG 64-22 1490 TON 110$ 163,900$ A22 5-04 1-09 Commercial HMA for Driveway 110 TON 100$ 11,000$ A23 5-04 1-09 Planing Bituminous Pavement 360 SY 12$ 4,320$ A24 5-07 1-09 Temporary Pavement 150 TON 150$ 22,500$ A25 6-13 1-09 Modular Block Wall 330 SF 40$ 13,200$ A26 7-01 1-09 Underdrain Pipe, 8 In. Diam.450 LF 40$ 18,000$ A27 7-01 1-09 Underdrain Aggregate 125 CY 60$ 7,500$ A28 7-04 1-09 Solid Wall PVC Storm Sewer Pipe 8 In. Diam.295 LF 60$ 17,700$ A29 7-04 1-09 Polypropylene Storm Sewer Pipe 12 In. Diam.1610 LF 80$ 128,800$ A30 7-04 1-09 Polypropylene Storm Sewer Pipe 18 In. Diam.550 LF 100$ 55,000$ A31 7-04 1-09 Ductile Iron Storm Sewer Pipe 8 In. Diam.340 LF 80$ 27,200$ A32 7-04 1-09 Ductile Iron Storm Sewer Pipe 12 In. Diam.135 LF 90$ 12,150$ A33 7-04 1-09 Ductile Iron Storm Sewer Pipe 18 In. Diam.70 LF 115$ 8,050$ A34 7-04 1-09 Gravel Borrow for Trench Backfill - Storm 1200 TON 30$ 36,000$ A35 7-04 1-09 CCTV Inspection 3000 LF 4$ 12,000$ A36 7-05 1-09 Concrete Inlet 1 EA 1,000$ 1,000$ A37 7-05 1-09 Catch Basin Type 1 30 EA 1,400$ 42,000$ A38 7-05 1-09 Catch Basin Type 1L 18 EA 1,600$ 28,800$ A39 7-05 1-09 Catch Basin Type 2 48 In. Diam.9 EA 3,600$ 32,400$ A40 7-05 1-09 Catch Basin Type 2 54 In. Diam.1 EA 5,000$ 5,000$ A41 7-05 1-09 Adjust Storm Drain Structure 3 EA 700$ 2,100$ A42 7-05 1-09 Adjust Sewer Manhole 7 EA 700$ 4,900$ A43 7-05 1-09 Connection to Existing Drainage Structure 4 EA 1,000$ 4,000$ A44 7-05 1-09 Filterra 4'x4'4 EA 25,000$ 100,000$ A45 7-06 1-09 Trench Excavation for Bioretention Cell 500 CY 35$ 17,500$ A46 7-06 1-09 Vertical Wall for Bioretention Cell 100 SF 80$ 8,000$ A47 7-06 1-09 Streambed Cobbles 12 TON 100$ 1,200$ A48 8-02 1-09 Property Restoration 1 EST 50,000$ 50,000$ A49 8-02 1-09 Seeded Lawn Installation 1300 SY 3$ 3,900$ A50 8-02 1-09 Topsoil Type A 280 CY 75$ 21,000$ A51 8-02 1-09 Bioretention Media 345 CY 65$ 22,425$ A52 8-02 1-09 Bark or Wood Chip Mulch 6 CY 75$ 450$ A53 8-02 1-09 Coarse Compost 12 CY 75$ 900$ A54 8-02 1-09 PSIPE Parrotia persica 'Vanessa'/ Vanessa Persian Ironwood; 2.5" Cal., 12'-14' Ht. 12 EA 550$ 6,600$ A55 8-02 1-09 PSIPE Crataegus x lavallei/ Lavalle Hawthorn; 2.5" Cal., 12'-14' Ht. 10 EA 550$ 5,500$ A56 8-02 1-09 PSIPE Maackia amurensis 'JFS-Schichtel1'/ Maacnificent Maackia; 2.5" Cal., 12'-14' Ht. 10 EA 550$ 5,500$ A57 8-02 1-09 PSIPE Tilia Cordata 'Chancole'/ Chancellor Linden; 2.5" Cal., 12'-14' Ht. 5 EA 550$ 2,750$ A58 8-02 1-09 PSIPE Spiraea betulifolia 'Tor'/ Tor Birchleaf Spirea; 2 Gal. Cont. 74 EA 28$ 2,072$ A59 8-02 1-09 PSIPE Rhododendron 'Purple Gem'/ Purple Gem Rhododendron; 2 Gal. Cont. 106 EA 28$ 2,968$ A60 8-02 1-09 PSIPE Cornus stolonifera 'Kelseyii'/ Kelseyii Red-Twig Dogwood; 1 Gal. Cont. 221 EA 22$ 4,862$ A61 8-02 1-09 PSIPE Mahonia repens/ Low Oregon Grape; 1 Gal. Cont. 240 EA 18$ 4,320$ A62 8-02 1-09 PSIPE Polystichum munitum/ Sword Fern; 1 Gal. Cont. 346 EA 18$ 6,228$ A63 8-02 1-09 PSIPE Achillea millefolium 'Walther Funcke'/ Walther Funcke Common Yarrow; 1 Gal. Cont. 70 EA 15$ 1,050$ A64 8-02 1-09 PSIPE Guem 'Mangl Lassi'/ Mango Lassi Avens; 1 Gal. Cont. 30 EA 15$ 450$ 1 of 3 No.Spec. Section Payment Section Description Quant. Unit Unit Cost Total A65 8-02 1-09 PSIPE Rubus pentalobus/ Creeping Bramble; 1 Gal. Cont. 460 EA 15$ 6,900$ A66 8-02 1-09 PSIPE Juncus ensifolius/ Dagger-leaf Rush; Gal. Cont. 150 EA 15$ 2,250$ A67 8-02 1-09 PSIPE Juncus tenuis 'Blue Dart'/ Blue Dart Rush; Gal. Cont. 130 EA 15$ 1,950$ A68 8-02 1-09 PSIPE Eleocharis palustris/ Common Spikerush; Gal. Cont. 225 EA 15$ 3,375$ A69 8-02 1-09 PSIPE Iris tenax/ Tough-Leaf Iris; Gal. Cont. 125 EA 15$ 1,875$ A70 8-02 1-09 Root Barrier 592 LF 12$ 7,104$ A71 8-04 1-09 Cement Conc. Traffic Curb and Gutter 4260 LF 25$ 106,500$ A72 8-04 1-09 Cement Conc. Traffic Curb 50 LF 60$ 3,000$ A73 8-06 1-09 Cement Conc. Driveway Entrance 980 SY 55$ 53,900$ A74 8-12 1-09 Chain Link Fence - 3-Ft Height 70 LF 22$ 1,540$ A75 8-12 1-09 Chain Link Fence - 4-Ft Height 210 LF 25$ 5,250$ A76 8-12 1-09 Single 6-Ft. Chain Link Gate 2 EA 600$ 1,200$ A77 8-12 1-09 Wood Fence - Type 1 50 LF 70$ 3,500$ A78 8-12 1-09 Wood Fence - Type 2 40 LF 45$ 1,800$ A79 8-12 1-09 Wood Fence - Type 3 130 LF 50$ 6,500$ A80 8-12 1-09 Wood Fence - Type 4 35 LF 40$ 1,400$ A81 8-13 1-09 Monument Case and Cover 2 EA 1,500$ 3,000$ A82 8-14 1-09 Pervious Cement Conc. Sidewalk 1510 SY 70$ 105,700$ A83 8-14 1-09 Cement Conc. Sidewalk 80 SY 40$ 3,200$ A84 8-14 1-09 Colored Cement Conc. Sidewalk 40 SY 80$ 3,200$ A85 8-14 1-09 Cement Conc. Driveway 510 SY 55$ 28,050$ A86 8-14 1-09 Cement Conc. Curb Ramp Type Parallel A 5 EA 2,000$ 10,000$ A87 8-14 1-09 Cement Conc. Curb Ramp Type Combination 1 EA 2,000$ 2,000$ A88 8-14 1-09 Cement Conc. Curb Ramp Type Perpendicular A 4 EA 2,000$ 8,000$ A89 8-14 1-09 Cement Conc. Curb Ramp Type Perpendicular B 5 EA 2,000$ 10,000$ A90 8-14 1-09 Cement Conc. Curb Ramp Type Single Direction A 1 EA 2,000$ 2,000$ A91 8-14 1-09 Cement Conc. Stair Connection 50 SF 100$ 5,000$ A92 8-18 1-09 Relocate Mailbox 20 EA 500$ 10,000$ A93 8-19 1-09 Adjust Gas Valve 2 EA 500$ 1,000$ A94 8-19 1-09 Adjust Franchise Utility Vault/Manhole 1 EA 950$ 950$ A95 8-21 1-09 Permanent Signing 1 LS 3,500$ 3,500$ A96 8-22 1-09 Plastic Stop Line 110 LF 6$ 660$ A97 8-22 1-09 Plastic Crosswalk Line 500 SF 5$ 2,500$ A98 8-22 1-09 Paint Line 110 LF 2$ 220$ A99 8-22 1-09 Removing Existing Pavement Markings 1 LS 1,500$ 1,500$ A100 8-26 1-09 Handrail 4 LF 250$ 1,000$ Schedule A - Roadway Improvements Subtotal 2,238,504$ 2 of 3 No.Spec. Section Payment Section Description Quant. Unit Unit Cost Total BID SCHEDULE B - WATER IMPROVEMENTS B1 1-04 1-09 Minor Change 1 EST 17,500$ 17,500$ B2 1-05 1-09 Construction Surveying, Staking, and As-Built Drawings 1 LS 10,625$ 10,625$ B3 1-07 1-09 Resolution of Utility Conflicts 1 EST 5,000$ 5,000$ B4 1-07 1-09 Utility Potholing 21 EA 1,000$ 21,000$ B5 1-07 1-09 COVID-19 Health and Safety Plan (CHSP)1 LS 500$ 500$ B6 1-07 1-09 COVID-19 Added Measures (Without Overhead & Profit)1 EST 1,500$ 1,500$ B7 1-09 1-09 Mobilization and Demobilization (Maximum Bid 10% of Schedule B Total excluding Sales Tax) 1 LS 63,750$ 63,750$ B8 1-10 1-09 Project Temporary Traffic Control 1 LS 68,750$ 68,750$ B9 1-10 1-09 Traffic Control Supervisor 1 LS 14,000$ 14,000$ B10 2-02 1-09 Sawcutting 790 LF 4$ 3,160$ B11 2-02 1-09 Removal and Replacement of Unsuitable Foundation Excavation 50 TON 27$ 1,350$ B12 2-03 1-09 Roadway Excavation Incl. Haul 500 CY 35$ 17,500$ B13 2-09 1-09 Trench Safety Systems 1 LS 17,500$ 17,500$ B14 2-09 1-09 Furnish and Install Controlled Density Fill 30 CY 225$ 6,750$ B15 4-04 1-09 Crushed Surfacing Base Course for Water Trench Section 330 TON 40$ 13,200$ B16 5-04 1-09 HMA Cl. 1/2" PG 64-22 for Water Trench Section 360 TON 110$ 39,600$ B17 5-04 1-09 Planing Bituminous Pavement 360 SY 12$ 4,320$ B18 7-09 1-09 Abandon Existing Water System 1 LS 25,000$ 25,000$ B19 7-09 1-09 Furnish and Install 6 In. Diam. Cl. 52 DI Water Main w/ Restrained Joint Fittings and Polywrap 30 LF 100$ 3,000$ B20 7-09 1-09 Furnish and Install 8 In. Diam. Cl. 52 DI Water Main w/ Restrained Joint Fittings and Polywrap 130 LF 100$ 13,000$ B21 7-09 1-09 Polywrap 60 LF 115$ 6,900$ B22 7-09 1-09 Polywrap 2250 LF 130$ 292,500$ B23 7-09 1-09 Bank Run Gravel for Trench Backfill - Water 1870 TON 35$ 65,450$ B24 7-09 1-09 Connection to Existing Water Main 7 EA 7,000$ 49,000$ B25 7-09 1-09 Concrete Thrust Block and Dead-Man Anchor Block 42 CY 290$ 12,180$ B26 7-12 1-09 Furnish and Install 6 In. Gate Valve Assembly 1 EA 2,500$ 2,500$ B27 7-12 1-09 Furnish and Install 8 In. Gate Valve Assembly 3 EA 3,000$ 9,000$ B28 7-12 1-09 Furnish and Install 10 In. Gate Valve Assembly 1 EA 3,200$ 3,200$ B29 7-12 1-09 Furnish and Install 12 In. Gate Valve Assembly 9 EA 3,500$ 31,500$ B30 7-12 1-09 Furnish and Install 8 In. In-Line Valve on Existing Main 3 EA 10,000$ 30,000$ B31 7-12 1-09 Furnish and Install 12 In. Tapping Tee and Valve 1 EA 5,000$ 5,000$ B32 7-12 1-09 Furnish and Install Comb. Air Release/Air Vacuum Valve Assembly 1 EA 5,000$ 5,000$ B33 7-12 1-09 Adjust Existing Water Valve Box to Grade (RC)3 EA 350$ 1,050$ B34 7-14 1-09 Furnish and Install Hydrant Assembly 7 EA 8,000$ 56,000$ B35 7-14 1-09 Remove and Salvage Hydrant 5 EA 900$ 4,500$ B36 7-15 1-09 Furnish and Install 1 In. Domestic Water Service Connection 45 EA 3,500$ 157,500$ B37 7-18 1-09 Side Sewer Replacement 110 LF 85$ 9,350$ B38 8-04 1-09 Cement Conc. Traffic Curb and Gutter 40 LF 25$ 1,000$ B39 8-14 1-09 Cement Conc. Sidewalk 150 SY 40$ 6,000$ Subtotal Schedule B 1,094,635$ Sales Tax (10%) 109,464$ Schedule B - Water Improvements Subtotal 1,204,099$ BID SCHEDULE C - IRRIGATION SYSTEM C1 8-03 1-09 Automatic Irrigation System, Complete 1 LS 65,000$ 65,000$ C2 8-03 1-09 Power Connection 1 LS 5,000$ 5,000$ Subtotal Schedule C 70,000$ Sales Tax (10%) 7,000$ Schedule C - Irrigation System Subtotal 77,000$ TOTAL ROADWAY IMPROVEMENTS COST (Schedule A + B + C) 3,519,603$ 3 of 3 City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX F – Design Plans · Bid Documents DRAFT (water and irrigation plans included but not funded by Ecology grant) PROJECT LOCATION BID DOCUMENT DESIGN CONTRACT #: CAG-19-031 CITY OF RENTON PROJECT #: SWP-27-4016 & WTR-27-4016 JUNE 2020SCHEDULE OF DRAWINGS NE 16TH STREET AND JEFFERSON AVENUE NE STORMWATER GREEN CONNECTIONS REGISTE R E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B DE DOU G LASInterdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue MAYOR CITY COUNCIL PROJECT VICINITY HORIZONTAL DATUM VERTICAL DATUM NE 16 T H S T INDEX AVE NEKIRKLAND AVE NEHARINGTON AVE NE NE 16TH STHARRINGTON AVE NE CONTROL POINT LIST NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144-INDX-ALGNM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 2 96 JUNE 2020 N/A 18144 SHEET INDEX, ALIGNMENT PLAN & SURVEY CONTROL-------- SHEET PLANS - NE 16TH STREET SHEET INDEX JEFFERSON AVE NE2 HARRINGTON AVE NE & NE 16TH ST SURVEY NOTES JEFFERSON AVE NE NE 12TH STNE 13TH STHORIZONTAL DATUM VERTICAL DATUM JEFFERSON AVE NE CONTROL POINT LIST NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144-INDX-ALGNM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 3 96 JUNE 2020 N/A 18144 3 SHEET INDEX, ALIGNMENT PLAN & SURVEY CONTROL-------- SHEET PLANS - JEFFERSON AVENUE NENE 16TH STSHEET INDEX JEFFERSON AVE NE SURVEY NOTES •••••••••••••••• •••••••••••• NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144-LGND-ABBRV.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE EXISTING LEGEND ABBREVIATIONS PROPOSED LEGEND SOD JF SOD DC KPG 4 96 JUNE 2020 N/A 18144 4 LEGEND & ABBREVIATIONS-------- DOE JOHN NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144-LGND-ABBRV.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE GENERAL NOTES SOD JF SOD DC KPG 5 96 JUNE 2020 N/A 18144 5 GENERAL NOTES-------- DETAIL INDICATOR DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN TAI FUNG LLCHARRINGTON AVE NE••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••NE 16TH ST INDEX AVE NERENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144EXCOND-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD JF SOD DC KPG 6 96 JUNE 2020 N/A 18144 NE 16TH ST STA 11+50 TO STA 19+50 EXISTING CONDITIONS -------- 6 SURVEY NOTES CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST JEFFERSONAVE NEKIRKLAND AVE NEPLAN NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144EXCOND-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 7 96 JUNE 2020 N/A 18144 NE 16TH ST STA 19+50 TO STA 24+00 EXISTING CONDITIONS -------- 7 SURVEY NOTES SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144EXCOND-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 8 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 70+50 TO STA 77+50 EXISTING CONDITIONS -------- PLAN PLAN 8 SURVEY NOTES FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH STRUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON NE 12TH ST••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144EXCOND-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD JF SOD DC KPG 9 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 77+50 TO END EXISTING CONDITIONS -------- 9 SURVEY NOTES JEFFERSON AVE NE GENERAL NOTES CONSTRUCTION NOTES••••••••••••••••••••••••••••••••••••••••••••••••••••••••DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN NE 16TH ST HARRINGTONAVE NEINDEX AVE NERENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144SP&TESC01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD JF SOD DC KPG 10 96 JUNE 2020 N/A 18144 NE 16TH ST STA 11+50 TO STA 19+50 SITE PREPARATION AND TESC PLAN -------- 10 CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND JEFFERSONAVE NENE 16TH ST KIRKLAND AVE NECONSTRUCTION NOTES GENERAL NOTES LEGEND PLAN NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144SP&TESC01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 11 96 JUNE 2020 N/A 18144 NE 16TH ST STA 19+50 TO STA 24+00 SITE PREPARATION AND TESC PLAN -------- 11 CONSTRUCTION NOTES SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE LEGEND GENERAL NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144SP&TESC01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 12 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 70+50 TO STA 77+50 SITE PREPARATION AND TESC PLAN -------- PLAN PLAN 12 CONSTRUCTION NOTES FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NENE 13TH ST••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON NE 12TH STLEGEND GENERAL NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144SP&TESC01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN JEFFERSON AVE NE SOD JF SOD DC KPG 13 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 77+50 TO END SITE PREPARATION AND TESC PLAN -------- 13 HIGH VISIBILITY ORANGE FENCE DETAIL CATCH BASIN INLET PROTECTION INSERT DETAIL NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-TESC.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- SITE PREPARATION AND TESC PLAN TESC NOTES AND DETAILS 14 18144 N/A JUNE 2020 9614 KPG DC SOD JF SOD TYPICAL SECTION A TYPICAL SECTION B ALTERNATE SECTION A1 ALTERNATE SECTION A2 ALTERNATE SECTION B1 ALTERNATE SECTION A3 ALTERNATE SECTION A4 MATERIAL CODEGENERAL TYPICAL SECTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144TYP01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 15 96 JUNE 2020 N/A 18144 15 -------- TYPICAL SECTIONS TYPICAL SECTION C TYPICAL SECTION D ALTERNATE SECTION C1 ALTERNATE SECTION C2 ALTERNATE SECTION C4 MATERIAL CODE GENERAL TYPICAL SECTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144TYP01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- TYPICAL SECTIONS 16 18144 N/A JUNE 2020 9616 KPG DC SOD JF SOD STA 12+00 TO STA 15+50 GENERAL NOTES ••••••••••••••••••••••••••••••••••INDEX AVE NEHARRINGTON AVE NEINDEX AVE NE••••••••••••••••••••••••NE 16TH ST ROADWAY LEGEND SIGNING & MAILBOX LEGEND CHANNELIZATION NOTES SIGN SCHEDULE SIGN SCHEDULE CONSTRUCTION NOTES PROFILE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN -------- ROADWAY PLANS AND PROFILE NE 16TH ST STA 11+50 TO STA 15+50 18144 N/A JUNE 2020 9617 KPG DC SOD JF SOD 17 STA 15+50 TO STA 19+50 CONSTRUCTION NOTES NE 16TH ST ROADWAY LEGEND SIGNING & MAILBOX LEGEND SIGN SCHEDULE GENERAL NOTES PROFILE PLAN SOD JF SOD DC KPG 18 96 JUNE 2020 N/A 18144 NE 16TH ST STA 15+50 TO STA 19+50 ROADWAY PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE 18 STA 19+50 TO STA 22+00 CONSTRUCTION NOTES NE 16TH ST KIRKLAND AVE NEJEFFERSONAVE NECHANNELIZATION NOTES ROADWAY LEGEND SIGNING & MAILBOX LEGEND SIGN SCHEDULE GENERAL NOTES PROFILE PLAN SOD JF SOD DC KPG 19 96 JUNE 2020 N/A 18144 NE 16TH ST STA 19+50 TO STA 24+00 ROADWAY PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE 19 NE 16TH ST PROFILE JEFFERSON AVE NE STA 70+50 TO STA 74+00 CONSTRUCTION NOTES SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE ROADWAY LEGEND SIGNING & MAILBOX LEGEND GENERAL NOTES PROFILE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- ROADWAY PLANS AND PROFILE JEFFERSON AVE NE STA 70+50 TO STA 74+00 18144 N/A JUNE 2020 9620 KPG DC SOD JF PLAN SOD 20 STA 74+00 TO STA 77+50 CONSTRUCTION NOTES LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE ROADWAY LEGEND GENERAL NOTES SIGNING & MAILBOX LEGEND PROFILE SOD JF SOD DC KPG 21 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 74+00 TO STA 77+50 ROADWAY PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN 21 CONSTRUCTION NOTES FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH STROADWAY LEGEND SIGNING & MAILBOX LEGEND SIGN SCHEDULE GENERAL NOTES CHANNELIZATION NOTES PROFILE JF SOD DC KPG 22 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 77+50 TO STA 81+00 ROADWAY PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN SOD 22 STA 81+00 TO STA 84+00 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STCONSTRUCTION NOTES ROADWAY LEGEND SIGNING & MAILBOX LEGEND SIGN SCHEDULE GENERAL NOTES CHANNELIZATION NOTES PROFILE JF SOD DC KPG 23 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 81+00 TO END ROADWAY PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN SOD 23 STANDARD SIGN PLACEMENT DETAIL CONC. TRAFFIC CURB TO ASPHALT WEDGE CURB TRANSITION PERVIOUS CONCRETE SIDEWALK SECTION CEMENT CONC. STAIR DETAILCEMENT CONC. WALKWAY DETAIL Name Ave NE STAIR HEIGHT ("H") -------- ROADWAY DETAILS 24 18144 N/A JUNE 2020 9624 KPG DC SOD JF SOD NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE UNSUITABLE FOUNDATION EXCAVATION UTILITY ADJUSTMENT DETAIL CURB CUT AND DROP DETAIL GALVANIZED CHAIN LINK FENCE AND GATE DETAIL NE 12TH ST PAVEMENT RESTORATION MODULAR BLOCK LANDSCAPING WALL MODULAR BLOCK LANDSCAPING WALL NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- ROADWAY DETAILS 25 18144 N/A JUNE 2020 9625 KPG DC SOD JF SOD HMA TRANSITION RAMP DETAIL NE 16TH ST AND HARRINGTON AVE NE GRIND / OVERLAY SECTION CEMENT CONC. SIDEWALK REPLACEMENT DETAIL HANDRAIL DETAILHANDRAIL PLACEMENT DETAIL ROCK FACING, CUT SECTION NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- ROADWAY DETAILS 26 18144 N/A JUNE 2020 9626 KPG DC SOD JF SOD WOODEN FENCE -TYPE 2 DETAILWOODEN FENCE -TYPE 1 DETAIL WOODEN FENCE -TYPE 3 DETAIL SOD JF SOD 27 96 JUNE 2020 N/A 18144 --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD-DET01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NEDC KPG 27 ROADWAY DETAILS WOODEN FENCE -TYPE 4 DETAIL SOD JF SOD 28 96 JUNE 2020 N/A 18144 --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144RD-DET01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NEDC KPG 28 ROADWAY DETAILS ••••••••••••••••••••••••••••NE 16TH ST INDEX AVE NEHARRINGTON AVE NESEE INTERSECTION PLAN, SHEET 32 SEE INTERSECTION PLAN, SHEET 33 NE 16TH ST SEE INTER S E C T I O N P L A N , SHEET 34 CURB LAYOUT POINTS SIDEWALK LAYOUT POINTS GUTTER FLANGE REFERENCE POINT NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144CURBALN01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD JF SOD DC KPG 29 96 JUNE 2020 N/A 18144 29 16TH ST STA 11+50 TO STA 21+00 CURB AND SIDEWALK LAYOUT --------JEFFERSON AVE NE NE 16TH STJEFFERSON AVE NE SEE INTERSECTION PLAN, SHEET 34 JEFFERSON AVE NE CURB LAYOUT POINTSSIDEWALK LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144CURBALN02.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 30 96 JUNE 2020 N/A 18144 30 JEFFERSON AVE NE STA 70+00 TO STA 77+00 CURB AND SIDEWALK LAYOUT -------- PLAN PLAN SEE INTERSECTION PLAN, SHEET 35 NE 13TH STJEFFERSON AVE NE ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••JEFFERSON AVE NE NE 12TH STSEE INTERSECTION PLAN, SHEET 36 CURB LAYOUT POINTS SIDEWALK LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144CURBALN02.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD JF SOD DC KPG 31 96 JUNE 2020 N/A 18144 31 JEFFERSON AVE NE STA 77+00 TO STA 84+25 CURB AND SIDEWALK LAYOUT -------- •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••NE 16 T H S T HARRINGTON AVE NE CURB LAYOUT POINTS CURB RETURN DATA NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMP.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN SOD JF SOD DC KPG 32 96 JUNE 2020 N/A 18144 32 NE 16TH ST & HARRINGTON AVE NE INTERSECTION & CURB RAMP PLAN -------- INDEX AVE NENE 16TH ST CURB LAYOUT POINTS CURB RETURN DATA NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMP.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 33 96 JUNE 2020 N/A 18144 33 NE 16TH ST & INDEX AVE NE INTERSECTION & CURB RAMP PLAN -------- PLAN JEFFERSON AVE NENE 16TH ST CURB LAYOUT POINTS CURB RETURN DATA NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMP.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 34 96 JUNE 2020 N/A 18144 34 NE 16TH ST & JEFFERSON AVE NE INTERSECTION & CURB RAMP PLAN -------- PLAN NE 13TH ST JEFFERSON AVE NECURB LAYOUT POINTS CURB RETURN DATA NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMP.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 35 96 JUNE 2020 N/A 18144 35 JEFFERSON AVE NE & NE 13TH ST INTERSECTION & CURB RAMP PLAN -------- PLAN NE 12TH ST JEFFERSON AVE NECURB LAYOUT POINTS CURB RETURN DATA NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMP.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD JF SOD DC KPG 36 96 JUNE 2020 N/A 18144 36 JEFFERSON AVE NE & NE 12TH ST INTERSECTION & CURB RAMP PLAN -------- PLAN HARRINGTON AVE NE NE 16 T H S T NE 16 T H S THARRINGTON AVE NEHARRINGTON AVE NE NE 16 T H S T RAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMPDET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE ADA RAMP 1 SOD JF SOD DC KPG 37 96 JUNE 2020 N/A 18144 37 ADA RAMP 1-4 DETAILS INTERSECTION & CURB RAMP PLAN -------- ADA RAMP 2 ADA RAMP 3 ADA RAMP 4 NE 16 T H S T HARRINGTON AVE NE NE 16T H S TINDEX AVE NE NE 16TH S T RAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTSRAMP LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMPDET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE ADA RAMP 5 SOD JF SOD DC KPG 38 96 JUNE 2020 N/A 18144 38 ADA RAMP 5-8 DETAILS INTERSECTION & CURB RAMP PLAN -------- ADA RAMP 6 ADA RAMP 7 ADA RAMP 8 NE 16TH ST NE 16TH ST JEFFERSON AVE NEJEFFERSON AVE NEJEFFERSON AVE NERAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMPDET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE ADA RAMP 9 SOD JF SOD DC KPG 39 96 JUNE 2020 N/A 18144 39 ADA RAMP 9-12 DETAILS INTERSECTION & CURB RAMP PLAN -------- ADA RAMP 10 ADA RAMP 11 ADA RAMP 12 JEFFERSON AVE NENE 13TH ST JEFFERSON AVE NENE 13TH ST NE 12TH ST JEFFERSON AVE NENE 12TH STJEFFERSON AVE NERAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS RAMP LAYOUT POINTS NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144INTRMPDET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE ADA RAMP 13 SOD JF SOD DC KPG 40 96 JUNE 2020 N/A 18144 40 ADA RAMP 13-16 DETAILS INTERSECTION & CURB RAMP PLAN -------- ADA RAMP 14 ADA RAMP 15 ADA RAMP 16 NE 16TH ST NE 16TH ST NE 16TH ST NE 16TH ST D1-NE16 STA 0+00 TO STA 0+50 D2-NE16 STA 0+00 TO STA 0+50 D3-NE16 STA 0+00 TO STA 0+50 D4-NE16 STA 0+00 TO STA 0+50 CONSTRUCTION NOTESLEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS NE 16TH ST- DRIVEWAYS 1-4 41 18144 N/A JUNE 2020 9641 KPG DC SOD JF SOD D1-NE16 D2-NE16 D3-NE16 D4-NE16DRIVEWAYDRIVEWAYDRIVEWAYDRIVEWAY NE 16TH ST NE 16TH STNE 16TH ST D5-NE16 STA 0+00 TO STA 0+50 D6-NE16 STA 0+00 TO STA 0+50 D7-NE16 STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS NE 16TH ST- DRIVEWAYS 5-7 42 18144 N/A JUNE 2020 9642 KPG DC SOD JF SOD D5-NE16 D7-NE16DRIVEWAYDRIVEWAYDRIVEWAYD6-NE16 NE 16TH ST NE 16TH ST D9-NE16 STA 0+00 TO STA 0+50 D10-NE16 STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES NE 16TH ST D11-NE16 STA 0+00 TO STA 0+50 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS NE 16TH ST- DRIVEWAYS 9-11 43 18144 N/A JUNE 2020 9643 KPG DC SOD JF SOD DRIVEWAY DRIVEWAYD9-NE16 D10-NE16 DRIVEWAYD11-NE16 JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D1-JEFF STA 0+00 TO STA 0+50 D2-JEFF STA 0+00 TO STA 0+75 D3-JEFF STA 0+00 TO STA 0+50 D4-JEFF STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 1-4 18144 N/A JUNE 2020 9644 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY DRIVEWAY DRIVEWAY 44 D1-JEFF D2-JEFF D3-JEFF D4-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D5-JEFF STA 0+00 TO STA 0+50 D6-JEFF STA 0+00 TO STA 0+50 D7-JEFF STA 0+00 TO STA 0+50 D8-JEFF STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 5-8 18144 N/A JUNE 2020 9645 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 45 D5-JEFF D6-JEFF DRIVEWAYD7-JEFF DRIVEWAYD8-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D9-JEFF STA 0+00 TO STA 0+50 D10A-JEFF STA 0+00 TO STA 0+40 D11-JEFF STA 0+00 TO STA 0+50 D12-JEFF STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES D10B-JEFF STA 0+00 TO STA 0+40 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 9-12 18144 N/A JUNE 2020 9646 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 46 D9-JEFF D10A/10B-JEFF DRIVEWAYD11-JEFF DRIVEWAYD12-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D13-JEFF STA 0+00 TO STA 0+50 D14-JEFF STA 0+00 TO STA 0+50 D15-JEFF STA 0+00 TO STA 0+50 D16A-JEFF STA 0+00 TO STA 0+40 LEGEND CONSTRUCTION NOTES D16B-JEFF STA 0+00 TO STA 0+40 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 13-16 18144 N/A JUNE 2020 9647 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 47 D13-JEFF D14-JEFF DRIVEWAYD15-JEFF DRIVEWAYD16A/D16B-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D17-JEFF STA 0+00 TO STA 0+75 D18-JEFF STA 0+00 TO STA 0+50 D19-JEFF STA 0+00 TO STA 0+50 D20-JEFF STA 0+00 TO STA 0+75 LEGEND CONSTRUCTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 17-20 18144 N/A JUNE 2020 9648 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 48 D17-JEFF D18-JEFF DRIVEWAYD19-JEFF DRIVEWAYD20-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D21-JEFF STA 0+00 TO STA 0+50 D22-JEFF STA 0+00 TO STA 0+50 D23A-JEFF STA 0+00 TO STA 0+40 D24-JEFF STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES D23B-JEFF STA 0+00 TO STA 0+40 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 21-24 18144 N/A JUNE 2020 9649 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 49 D21-JEFF D22-JEFF DRIVEWAYD23A/D23B-JEFF DRIVEWAYD24-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE D25-JEFF STA 0+00 TO STA 0+50 D26-JEFF STA 0+00 TO STA 0+50 D27-JEFF STA 0+00 TO STA 0+50 D28-JEFF STA 0+00 TO STA 0+50 LEGEND CONSTRUCTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGISTER E D NOTGNIHSAWFOETATS ERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 25-28 18144 N/A JUNE 2020 9650 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY 50 D25-JEFF D26-JEFF DRIVEWAYD27-JEFF DRIVEWAYD28-JEFF JEFFERSON AVE NE JEFFERSON AVE NE JEFFERSON AVE NE LEGEND CONSTRUCTION NOTES D30-JEFF STA 0+00 TO STA 0+50 D31-JEFF STA 0+00 TO STA 0+50 D32-JEFF STA 0+00 TO STA 0+50 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DW01.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- DRIVEWAY PLANS JEFFERSON AVE NE - DRIVEWAYS 30-32 18144 N/A JUNE 2020 9651 KPG DC SOD JF SOD DRIVEWAY DRIVEWAY DRIVEWAY 51 D30-JEFF D31-JEFF D32-JEFF CEMENT CONCRETE DRIVEWAY ENTRANCE TYPE 3 CEMENT CONCRETE DRIVEWAY GENERAL NOTES SOD JF SOD 52 96 JUNE 2020 N/A 18144 DETAILS 1 DRIVEWAY DETAILS --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-DW.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NEDC KPG 52 CEMENT CONCRETE TRAFFIC CURB AND GUTTER DETAIL PARKING AND DRIVEWAY PAVEMENT DETAIL GRADE TO DRAIN DETAIL SOD JF SOD 53 96 JUNE 2020 N/A 18144 DETAILS 2 DRIVEWAY DETAILS --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-DW.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NEDC KPG 53 CEMENT CONCRETE DRIVEWAY ENTRANCE - TYPE R1 CEMENT CONCRETE DRIVEWAY ENTRANCE - NOTES AND DETAILS CEMENT CONCRETE DRIVEWAY ENTRANCE - TYPE R1B SOD JF SOD 54 96 JUNE 2020 N/A 18144 DETAILS 3 DRIVEWAY DETAILS --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-DW02.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NEDC KPG 54 CONSTRUCTION NOTES DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT••••••••••••••••NE 16TH ST INDEX AVE NEHARRINGTON AVE NEGENERAL NOTES LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN -------- STORMWATER PLANS AND PROFILE NE 16TH ST STA 11+50 TO STA 15+50 55 18144 N/A JUNE 2020 9655 KPG WRE WRE JF SOD PROFILE NE 16TH STREET CONSTRUCTION NOTES RENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST GENERAL NOTES LEGEND PLAN JF WRE WRE KPG 56 96 JUNE 2020 N/A 18144 NE 16TH ST STA 15+50 TO STA 19+50 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NSOD 56 PROFILE NE 16TH STREET CONSTRUCTION NOTES CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC LAM MINH & TRANG NGUYEN RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NEGENERAL NOTES LEGEND PLAN JF WRE WRE KPG 57 96 JUNE 2020 N/A 18144 NE 16TH ST STA 19+50 TO STA 24+00 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NSOD 57 PROFILE NE 16TH STREET PROFILE JEFFERSON AVE NE CONSTRUCTION NOTES SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE GENERAL NOTES LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI N-------- STORMWATER PLANS AND PROFILE JEFFERSON AVE NE STA 70+50 TO STA 74+00 18144 N/A JUNE 2020 9658 KPG WRE WRE JF PLAN SOD 58 PROFILE JEFFERSON AVE NE - RT PROFILE JEFFERSON AVE NE - LT CONSTRUCTION NOTES LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE GENERAL NOTES LEGEND JF WRE WRE KPG 59 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 74+00 TO STA 77+50 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN SOD 59 PROFILE JEFFERSON AVE NE CONSTRUCTION NOTES FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH STGENERAL NOTES LEGEND JF WRE WRE KPG 60 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 77+50 TO STA 81+00 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN SOD 60 PROFILE JEFFERSON AVE NE ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STCONSTRUCTION NOTES GENERAL NOTES LEGEND SOD JF WRE WRE KPG 61 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 81+00 TO END STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN 61 PROFILE JEFFERSON AVE NE STA 0+00 TO STA 1+10STA -0+05 TO STA 0+15 STA -0+10 TO STA 0+65 JF WRE WRE KPG 62 96 JUNE 2020 N/A 18144 STORM DRAIN CROSSINGS NE 16TH ST STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NSOD 62 PROFILE CB 65 TO CB 8 PROFILE CB 59 TO CB 66 PROFILE CB 15 & CB 16 TO CB 11 PROFILE CB 61 & CB 17 TO CB 12 PROFILE CB 77 TO CB 76 PROFILE CB 99 TO CB 101 PROFILE CB 6 TO CB 98 PROFILE CB 155, CB 28 & CB 29 TO CB 22 PROFILE CB 139 TO CB 96 SOD JF WRE WRE KPG 63 96 JUNE 2020 N/A 18144 STORM DRAIN CROSSINGS JEFFERSON AVE NE STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI N63 PROFILE CB 135 & CB 25 TO CB 20 PROFILE CB 50 TO CB 42 PROFILE CB 51, CB 52 TO CB 43 PROFILE CB 62 TO CB 49 PROFILE CB 58 TO CB 56 PROFILE CB 54 TO CB 45 PROFILE CB 24 & CB 135 TO CB 18 PROFILE CB 54 & CB 55 TO CB 48 PROFILE CB 136 TO CB 137 PROFILE CB 131 TO CB 132 PROFILE CB 133 TO CB 134 PROFILE CB146 TO CB 138 KIDZRESEARCH LLC NE 16TH ST NE 16TH ST NE 16TH ST NE 16TH ST NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN -------- STORMWATER PLANS AND PROFILE BIORETENTION CELL LAYOUT S1-S2 64 18144 N/A JUNE 2020 9664 KPG WRE WRE JF SOD PLAN PROFILE PROFILE S1 S2 SAUVE WILLIAM JF WRE WRE KPG 65 96 JUNE 2020 N/A 18144 BIORETENTION CELL LAYOUT S3 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NSOD 65 PLAN PROFILE S3 STA 70+25 TO STA 71+25 JEFFERSON AVE NE JEFFERSON AVE NE STA 70+25 TO STA 70+80 STA 71+75 TO STA 72+75 NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI N-------- STORMWATER PLANS AND PROFILE BIORETENTION CELL LAYOUT J1-J2-J3 18144 N/A JUNE 2020 9666 KPG WRE WRE JF PLAN SOD 66 PLAN PROFILE PROFILE PROFILE J2 J3J1 JEFFERSON AVE NE JEFFERSON AVE NE STA 73+50 TO STA 74+50 STA 76+50 TO STA 77+50 JF WRE WRE KPG 67 96 JUNE 2020 N/A 18144 BIORETENTION CELL LAYOUT J4-J5 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN SOD 67 PLAN PROFILE PROFILE J4 J5 JEFFERSON AVE NE JEFFERSON AVE NE STA 79+50 TO STA 80+25 JEFFERSON AVE NE JEFFERSON AVE NE JF WRE WRE KPG 68 96 JUNE 2020 N/A 18144 BIORETENTION CELL LAYOUT J6-J7-J8 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN SOD 68 PLAN PROFILE PROFILE PROFILE J7J6 J8 PLAN JEFFERSON AVE NE SOD JF WRE WRE KPG 69 96 JUNE 2020 N/A 18144 BIORETENTION CELL LAYOUT J9 STORMWATER PLANS AND PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144STRM02-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR A LI NPLAN 69 PROFILE J9 ABIORETENTION TYPE A CELL SECTION BBIORETENTION TYPE B CELL SECTION CBIORETENTION TYPE C CELL SECTION NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET01-STRM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR ALI N70 18144 N/A JUNE 2020 9670 KPG WRE WRE JF SOD BIORETENTION CELL DETAILS TYPICAL SECTIONS DBIORETENTION TYPE D CELL SECTION EBIORETENTION TYPE E CELL SECTION FMODULAR BLOCK WALL AT BIORETENTION CELL KCONCRETE VERTICAL WALL NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET01-STRM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR ALI N71 18144 N/A JUNE 2020 9671 BIORETENTION CELL DETAILS KPG WRE WRE JF SOD TYPICAL SECTIONS G BEEHIVE GRATE FOR OVERFLOW STRUCTURE DETAIL HBIORETENTON CELL BERM DETAIL IINLET OPENING AT BULB-OUT DETAIL JPERVIOUS CONCRETE SIDEWALK WITH UNDERDRAIN DETAILKBIORETENTON CELL BERM DETAIL FOR UTILITY CROSSING DETAIL NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET01-STRM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR ALI N72 18144 N/A JUNE 2020 9672 KPG WRE WRE JF SOD BIORETENTION CELL DETAILS FILTERRA UNIT LAYOUT DETAIL PROFILE VIEW THROAT OPENING DEPRESSED GUTTER DIMENSIONS TOP VIEW DEPRESSED GUTTER TRANSITION SECTION NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET02-STRM.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 45211WILLIAM R. EDR ALI N73 18144 N/A JUNE 2020 9673 FILTERRA UNIT KPG WRE WRE JF SOD DETAILS GENERAL WATER NOTES DANG & SITU FACILITIES & OPERATIONS CTR••••••••••••••••••••••••HARRINGTON AVE NE NE 16TH STLEGEND STA 50+00 TO STA 54+00 WATER CONSTRUCTION NOTES PROFILE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN -------- WATER PLAN & PROFILE HARRINGTON AVE NE STA 50+50 TO STA 53+50 74 18144 N/A JUNE 2020 9674 KPG DC JB SOD SOD NEW 12" WATER ON HARRINGTON AVE NE STA 11+00 TO STA 15+50 DANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN NE 16TH ST••••••••••••••••••••••••INDEX AVE NENE 16TH ST LEGEND WATER SERVICES WATER CONSTRUCTION NOTES GENERAL WATER NOTES PROFILE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN -------- WATER PLAN & PROFILE NE 16TH ST STA 11+00 TO STA 15+50 75 18144 N/A JUNE 2020 9675 KPG DC JB SOD SOD NEW 12" WATER ON NE 16TH ST RENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST LEGEND WATER SERVICES WATER CONSTRUCTION NOTES GENERAL WATER NOTES PROFILE PLAN SOD SOD JB DC KPG 76 96 JUNE 2020 N/A 18144 76 NE 16TH ST STA 15+50 TO STA 19+50 WATER PLAN & PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE NEW 12" WATER ON NE 16TH ST STA 69+70 TO STA 70+50 CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NEJEFFERSONAVE NELEGEND WATER SERVICES WATER CONSTRUCTION NOTES GENERAL WATER NOTES PROFILE PLAN SOD SOD JB DC KPG 77 96 JUNE 2020 N/A 18144 77 NE 16TH ST STA 19+50 TO 24+00 WATER PLAN & PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE NE 16TH ST CONNECTION TO NEW 12" WATER ON JEFFERSON AVE NE NEW 12" WATER ON JEFFERSON AVE NE PROFILE SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE LEGEND WATER CONSTRUCTION NOTES GENERAL WATER NOTES WATER SERVICES PROFILE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE -------- WATER PLAN & PROFILE JEFFERSON AVE NE STA 70+50 TO STA 74+00 78 18144 N/A JUNE 2020 9678 KPG DC JB SOD SOD PLAN NEW 12" WATER ON JEFFERSON AVE NE STA 74+00 TO STA 77+50 LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING WEI LONG & LIHONG LIU JEFFERSON AVE NE LEGEND GENERAL WATER NOTES WATER CONSTRUCTION NOTES WATER SERVICES PROFILE SOD SOD JB DC KPG 79 96 JUNE 2020 N/A 18144 79 JEFFERSON AVE NE STA 74+00 TO STA 77+50 WATER PLAN & PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN NEW 12" WATER ON JEFFERSON AVE NE FUNG DANNY FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L JEFFERSON AVE NE NE 13TH STLEGEND GENERAL WATER NOTES WATER CONSTRUCTION NOTES WATER SERVICES PROFILE SOD SOD JB DC KPG 80 96 JUNE 2020 N/A 18144 80 JEFFERSON AVE NE STA 77+50 TO STA 81+00 WATER PLAN & PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN NEW 12" WATER ON JEFFERSON AVE NE RUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON JEFFERSON AVE NE NE 12TH STLEGEND GENERAL WATER NOTES WATER CONSTRUCTION NOTES WATER SERVICES PROFILE SOD SOD JB DC KPG 81 96 JUNE 2020 N/A 18144 81 JEFFERSON AVE NE STA 81+00 TO 84+25 WATER PLAN & PROFILE --------NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN NEW 12" WATER ON JEFFERSON AVE NE NE 12TH STJEFFERSON AVE NEINDEX AVE NE NE 16TH ST INDEX AVE NE NE 16TH ST STA -0+25 TO STA 0+75 NE 13TH STJEFFERSON AVE NENUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE --------WATER PROFILES 82 18144 N/A JUNE 2020 9682 KPG DC JB SOD SOD PROFILE PLAN NEW 8" WATER ON NE 12TH ST PLAN FIRE HYDRANT ON NE 16TH ST PLAN CONNECTION ON INDEX AVE NE PLAN CONNECTION ON NE 13TH ST PROFILE PROFILE PROFILE NE 16 T H S T HARRINGTON AVE NEHARRINGTON AVE NEINDEX AVE NE NE 1 6 T H S T JEFFERSONAVE NENE 16TH ST NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE --------WATER CONNECTION DETAILS 83 18144 N/A JUNE 2020 9683 KPG DC JB SOD SOD NE 16TH ST CONNECTION #1 HARRINGTON AVE NE CONNECTION #2 INDEX AVE NE CONNECTION #4 NE 16TH ST CONNECTION #5 PLAN PLAN PLAN HARRINGTON AVE NE CONNECTION #3 PLAN PLAN PLAN NE 16TH ST CONNECTION #6 NE 12TH STJEFFERSON AVE NECONTROL DENSITY FILL PIPE ENCASEMENT NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR-DET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE --------WATER CONNECTION DETAILS 84 18144 N/A JUNE 2020 9684 KPG DC JB SOD SOD NE 12TH ST & JEFFERSON AVE NE CONNECTION #7 PLAN GENERAL WATER NOTES WATER MAIN CONSTRUCTION NOTES WATER UTILITY ABANDONMENT NOTES ABANDONING WATER MAINS ABANDONING WATER VALVES ABANDONING WATER FIRE HYDRANTS ABANDONING WATER SERVICES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144WTR-NOTES.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE --------WATER GENERAL NOTES 85 18144 N/A JUNE 2020 9685 KPG DC JB SOD SODREGISTEREDNOTGNIHSAWFOETATSERNEPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LAS CONSTRUCTION NOTESDANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN TAI FUNG LLC••••••••NE 16TH ST INDEX AVE NEDANG & SITU KIDZRESEARCH LLC COURTER JOHN F FACILITIES & OPERATIONS CTR DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT DAYANG REAL ESTATE INVESTMENT WU CHANGHUA & GU JIANMIN TAI FUNG LLCHARRINGTON AVE NERENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NE 16TH ST RENTON SCHOOL DISTRICT WU CHANGHUA & GU JIANMIN KAZACHENKO VIORIKA KOLRVA ELENA & ANGEL KOLEV SINGH KULWINDER NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144LS-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE COREEN E L I Z A BETH S C HMI DTNO. 1 377 EXP. 05 /2 4 /2020STATE O F W ASHIN GTONLAND S CAPE A R C H ITECTPLAN PLAN SOD LG CES YS KPG 86 96 JUNE 2020 N/A 18144 NE 16TH ST STA 11+50 TO STA 19+50 LANDSCAPE PLAN -------- 86 SEE SHEET 90 FOR LANDSCAPE SCHEDULE, DETAILS AND GENERAL NOTES CITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND NE 16TH ST KIRKLAND AVE NECITY OF RENTON WAY BACK INN FOUNDATION JARVIS RENTALS LLC RENTON HOUSING AUTHORITY SAUVE WILLIAM RAYMOND SAUVE WILLIAM RAYMOND CONSTRUCTION NOTES PLAN NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144LS-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE COREEN E L I Z A BETH S C HMI DTNO. 1 377 EXP. 05 /2 4 /2020STATE O F W ASHIN GTONLAND S CAPE A R C H ITECTSEE SHEET 90 FOR LANDSCAPE SCHEDULE, DETAILS AND GENERAL NOTES SOD LG CES YS KPG 87 96 JUNE 2020 N/A 18144 NE 16TH ST STA 19+50 TO STA 24+50 LANDSCAPE PLAN -------- 87JEFFERSONAVE NE CONSTRUCTION NOTES SEE ZOE SHUK MING & WONG MEI WOO ANITA & TIMOTHY C LUO XUE LING WOO ANITA & TIMOTHY C LUO XUE LING WEI LONG & LIHONG LIU SAUVE WILLIAM RAYMOND WAY BACK INN FOUNDATION JEFFERSON AVE NE LUO XUE LING MITCHELL DENNIS & DIANE LUO XUE LING FOUST TAMI MARIE ZHOU JENNIFER PACECCA VINCENZO A ZHANG YONGXING FUNG DANNY FAKHARZADEH M HADI WEI LONG & LIHONG LIU JEFFERSON AVE NE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144LS-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE COREEN E L I Z A BETH S C HMI DTNO. 1 377 EXP. 05 /2 4 /2020STATE O F W ASHIN GTONLAND S CAPE A R C H ITECTSOD LG CES YS KPG 88 96 JUNE 2020 N/A 18144 88 JEFFERSON AVE NE STA 70+50 TO STA 78+00 LANDSCAPE PLAN -------- PLAN PLAN SEE SHEET 90 FOR LANDSCAPE SCHEDULE, DETAILS AND GENERAL NOTES CONSTRUCTION NOTES FAKHARZADEH M HADI KHOMLYAK ROMAN MCMILIAN SHERRY TAN XUEYAN & YUAN ZHIWEI CHOW LYDIA WEN-LI SMITH JOHN & SHARON L RUSSO PAUL A & CATHERINE I JEFFERSON AVE NE NE 13TH STRUSSO PAUL A & CATHERINE I DALRYMPLE WALTER A MJS HEATHER LLC CITY OF RENTON NE 12TH STJEFFERSON AVE NE NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144LS-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE COREEN E L I Z A BETH S C HMI DTNO. 1 377 EXP. 05 /2 4 /2020STATE O F W ASHIN GTONLAND S CAPE A R C H ITECTPLAN PLAN SEE SHEET 90 FOR LANDSCAPE SCHEDULE, DETAILS AND GENERAL NOTES SOD LG CES YS KPG 89 96 JUNE 2020 N/A 18144 JEFFERSON AVE NE STA 78+00 TO STA 84+25 LANDSCAPE PLAN -------- 89 GENERAL NOTES TREE PLANTING NOTES TREE PROTECTION NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144LSDET.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue STORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE COREEN E L I Z ABETH S C HMI DTNO. 1 377 EXP. 05 /2 4 /2020STATE O F W A SHIN G TONLAND S CAPE A R C H ITECTSOD LG CES YS KPG 90 96 JUNE 2020 N/A 18144 90 LANDSCAPE SCHEDULE & DETAILS -------- PLANT SCHEDULE TYPICAL STREET TREE PLANTING DETAILTYPICAL ROOT BARRIER DETAIL TYPICAL MULCH RING DETAIL TREE PROTECTION DETAIL PLANTING DETAIL TYPICAL SHRUB / GRASS / GROUNDCOVER CONSTRUCTION NOTES NE 16TH ST INDEX AVE NE••••••••HARRINGTON AVE NENE 16TH ST PIPE SIZE CHART IRRIGATION LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144IRR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD LG CES YS KPG 91 96 JUNE 2020 N/A 18144 91 NE 16TH ST STA 11+50 TO STA 19+50 IRRIGATION PLAN -------- SEE SHEET 95-96 FOR COMPLETE IRRIGATION SCHEDULE, DETAILS AND GENERAL NOTES NE 16TH ST KIRKLAND AVE NEJEFFERSON AVE NECONSTRUCTION NOTES PIPE SIZE CHART IRRIGATION LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144IRR01-16TH.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN SOD LG CES YS KPG 92 96 JUNE 2020 N/A 18144 92 NE 16TH ST STA 19+50 TO STA 24+50 IRRIGATION PLAN -------- SEE SHEET 95-96 FOR COMPLETE IRRIGATION SCHEDULE, DETAILS AND GENERAL NOTES CONSTRUCTION NOTES JEFFERSON AVE NE JEFFERSON AVE NE IRRIGATION LEGEND CONDUIT AND WIRING NOTES PIPE SIZE CHART NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144IRR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE SOD LG CES YS KPG 93 96 JUNE 2020 N/A 18144 93 JEFFERSON AVE NE STA 70+50 TO STA 78+00 IRRIGATION PLAN -------- PLAN PLAN SEE SHEET 95-96 FOR COMPLETE IRRIGATION SCHEDULE, DETAILS AND GENERAL NOTES JEFFERSON AVE NE NE 13TH STNE 12TH STJEFFERSON AVE NE CONSTRUCTION NOTES PIPE SIZE CHART IRRIGATION LEGEND NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144IRR01-JFSN.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGN IHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE PLAN PLAN SOD LG CES YS KPG 94 96 JUNE 2020 N/A 18144 94 JEFFERSON AVE NE STA 78+00 TO STA 84+25 IRRIGATION PLAN -------- SEE SHEET 95-96 FOR COMPLETE IRRIGATION SCHEDULE, DETAILS AND GENERAL NOTES GENERAL NOTES NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-IRR.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE IRRIGATION SCHEDULE AUTOMATIC CONTROL VALVE TYPICAL SWING JOINT CONTROL WIRE BUNDLE INSTALLATION SOD LG CES YS KPG 95 96 JUNE 2020 N/A 18144 95 IRRIGATION DETAILS -------- CONDUIT RISER DETAIL NUMBER BY APP.REVISION DESCRIPTION DRAWN BY: DESIGN BY: CHECK BY: PROJ MGR: FILE:BY:DATE: APPROVED FOR BID DATE DRAWING NO. PROJECT NO. FED AID NO. DATE: SHEET NO.OF SURVEYED: 18144DET-IRR.dwg BID DOCUMENT Public Works Department CITY OF RENTON Interdisciplinary Design SEATTLE 3131 Elliott Ave Suite 400 WA 98121 (206) 286 1640 www.kpg.com Tacoma Wenatchee Bellevue REGIST ER E D NOTGNIHSAWFOETATS ERN EPRFO E NNALIO E S IGS 52116SAM O B D E DOU G LASSTORMWATER GREEN CONNECTIONS PROJECT NE 16TH ST - JEFFERSON AVE NE IRRIGATION CONTROLLER FOOTING SECTION DETAIL DOUBLE CHECK VALVE ASSEMBLYTYPICAL POINT OF CONNECTION ASSEMBLY QUICK COUPLING VALVE/ TRIPLE SWING JOINT SOD LG CES YS KPG 96 96 JUNE 2020 N/A 18144 96 -------- GROUNDING GRID DETAIL IRRIGATION DETAILS City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX G – Operation and Maintenance Information · O&M Information from RSWDM o Permeable Pavement BMP o Bioretention BMP o Filterra System · Filterra Manufacturer’s O&M Instructions · Filterra General Use Level Designation (GULD) APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS 2017 City of Renton Surface Water Design Manual 12/12/2016 A-41 NO. 30 – PERMEABLE PAVEMENT BMP MAINTENANCE COMPONENT DEFECT OR PROBLEM CONDITIONS WHEN MAINTENANCE IS NEEDED RESULTS EXPECTED WHEN MAINTENANCE IS PERFORMED Preventive Surface cleaning/ vegetation control Media surface vacuumed or pressure washed annually, vegetation controlled to design maximum. Weed growth suggesting sediment accumulation. No dirt, sediment, or debris clogging porous media, or vegetation limiting infiltration. Porous Concrete, Porous Asphaltic Concrete, and Permeable Pavers Trash and debris Trash and debris on the pavement interfering with infiltration; leaf drop in fall season. No trash or debris interfering with infiltration. Sediment accumulation Sediment accumulation on the pavement interfering with infiltration; runoff from adjacent areas depositing sediment/debris on pavement. Pavement infiltrates as designed; adjacent areas stabilized. Insufficient infiltration rate Pavement does not infiltrate at a rate of 10 inches per hour. Pavement infiltrates at a rate greater than 10 inches per hour. Excessive ponding Standing water for a long period of time on the surface of the pavement. Standing water infiltrates at the desired rate. Broken or cracked pavement Pavement is broken or cracked. No broken pavement or cracks on the surface of the pavement. Settlement Uneven pavement surface indicating settlement of the subsurface layer. Pavement surface is uniformly level. Moss growth Moss growing on pavement interfering with infiltration. No moss interferes with infiltration. Inflow restricted Inflow to the pavement is diverted, restricted, or depositing sediment and debris on the pavement. Inflow to pavement is unobstructed and not bringing sediment or debris to the pavement. Underdrain not freely flowing Underdrain is not flowing when pavement has been infiltrating water. Underdrain flows freely when water is present. Overflow not controlling excess water Overflow not controlling excess water to desired location; native soil is exposed or other signs of erosion damage are present. Overflow permits excess water to leave the site at the desired location; Overflow is stabilized and appropriately armored. Permeable Pavers Broken or missing pavers Broken or missing paving blocks on surface of pavement. No missing or broken paving blocks interfering with infiltration. Uneven surface Uneven surface due to settlement or scour of fill in the interstices of the paving blocks. Pavement surface is uniformly level. Compaction Poor infiltration due to soil compaction between paving blocks. No soil compaction in the interstices of the paver blocks limiting infiltration. Poor vegetation growth (if applicable) Grass in the interstices of the paving blocks is dead. Healthy grass is growing in the interstices of the paver blocks. APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS 12/12/2016 2017 City of Renton Surface Water Design Manual A-42 NO. 31 – BIORETENTION BMP MAINTENANCE COMPONENT DEFECT OR PROBLEM CONDITIONS WHEN MAINTENANCE IS NEEDED RESULTS EXPECTED WHEN MAINTENANCE IS PERFORMED Preventive Vegetation Vegetation to be watered and pruned as needed and mulch applied to a minimum of 2 inches to maintain healthy growth. Healthy vegetation growth with full coverage as designed. Bioretention Area Trash and debris Trash and debris in the bioretention area; leaf drop in the fall season. No trash or debris In the bioretention area. Sediment accumulation Sediment accumulation in the bioretention area interfering with infiltration. Water in the bioretention infiltrates as designed. Excessive ponding Standing water in the bioretention area for more than two days. Standing water infiltrates at the desired rate. Inflow restricted Inflow not getting into bioretention; debris/sediment blockage at inlet features; native soil is exposed or other signs of erosion damage is present. Unobstructed and properly routed inflow into bioretention area; inlet is stabilized and appropriately armored. Overflow not controlling excess water Overflow water not controlled by outlet features; native soil is exposed or other signs of erosion damage is present. Outlet features control overflow; overflow is stabilized and appropriately armored. Underdrain not freely flowing Underdrain is not flowing when bioretention area has been infiltrating water. Underdrain flows freely when water is present. Vegetation Poor vegetation coverage Plants not thriving across at least 80% of the entire design vegetated area within the BMP; overly dense vegetation requiring pruning. Healthy water tolerant plants in bioretention area, plants thriving across at least 80% of the entire design vegetated area within the facility. Insufficient vegetation Plants not water tolerant species. Plants are water tolerant. Weeds present Weeds growing in bioretention area. No weeds in bioretention area. Watering not occurring Planting schedule requires frequent watering (approx. weekly Year 1, bimonthly Years 2 and 3) for new facilities, and as needed for established plantings or dry periods Plants are established and thriving Pest control Signs of pests, such as wilting or chewed leaves or bark, spotting or other indicators; extended ponding period encouraging mosquitoes Plant community is pest-free when following an approved Integrated Pest Management plan; bioretention functioning normally and ponding controlled as needed for pest control Containment Berm and Earthen Slopes Erosion Erosion occurring at earthen slopes or containment berm side slope. Erosion on the containment berm and side slopes has been repaired and the cause of the erosion corrected. Voids created by nuisance animals (e.g., rodents) or tree roots Voids affecting berm integrity or creating leaky pond condition Voids have been repaired; facility is free of nuisance animals following an approved Integrated Pest Management plan. Settlement Any part of the containment berm top has less than 6 inches of freeboard from the maximum pond level to the top of the berm. A minimum of 6 inches freeboard from the maximum pond level to the top of the berm. Amended Soil Poor soil nutrients Soil not providing plant nutrients. Soil providing plant nutrients. Bare spots Bare spots on soil in bioretention area. No bare spots, bioretention area covered with vegetation or mulch mixed into the underlying soil. Compaction Poor infiltration due to soil compaction in the bioretention area. No soil compaction in the bioretention area. APPENDIX A MAINTENANCE REQUIREMENTS FOR STORMWATER FACILITIES AND ON-SITE BMPS 12/12/2016 2017 City of Renton Surface Water Design Manual A-48 NO. 40 – FILTERRA SYSTEM MAINTENANCE COMPONENT DEFECT OR PROBLEM CONDITION WHEN MAINTENANCE IS NEEDED RESULTS EXPECTED WHEN MAINTENANCE IS PERFORMED In addition to the specific maintenance criteria provided below, all manufacturer’s requirements shall be followed. Facility – General Requirements Life cycle Once per year, except mulch and trash removal twice per year Facility is re-inspected and any needed maintenance performed 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 Excessive sediment or trash accumulation Accumulated sediments or trash impair free flow of water into system Inlet should be free of obstructions allowing free distributed flow of water into system Mulch Cover Trash and floatable debris accumulation Excessive trash and/or debris accumulation Minimal trash or other debris on mulch cover. Mulch cover raked level. “Ponding” of water on mulch cover “Ponding” in unit could be indicative of clogging due to excessive fine sediment accumulation or spill of petroleum oils Stormwater should drain freely and evenly through mulch cover Proprietary Filter Media/ Vegetation Substrate “Ponding” of water on mulch cover after mulch cover has been maintained Excessive fine sediment passes the mulch cover and clogs the filter media/vegetative substrate Stormwater should drain freely and evenly through mulch cover. Replace substrate and vegetation when needed Vegetation Plants not growing or in poor condition Soil/mulch too wet, evidence of spill, incorrect plant selection, pest infestation, and/or vandalism to plants Plants should be healthy and pest free Media/mulch too dry Irrigation is required Plants absent Plants absent Appropriate plants are present Excessive plant growth Excessive plant growth inhibits facility function or becomes a hazard for pedestrian and vehicular circulation and safety Pruning and/or thinning vegetation maintains proper plant density. Appropriate plants are present. Structure Structure has visible cracks Cracks wider than ½ inch Evidence of soil particles entering the structure through the cracks Structure is sealed and structurally sound Filterra Owner’s Manual ® Bioretention Systems ENGINEERED SOLUTIONS www.ContechES.com/filterra | 800-338-1122 3 Table of Contents Introduction ................................................................................4 Activation Overview .....................................................................4 Filterra Plant Selection Overview ...................................................6 Warranty Overview ......................................................................6 Routine Maintenance Guidelines...................................................6 Maintenance Visit Procedure .........................................................9 Appendix 1 – Activation Checklist ...............................................12 Appendix 2 – Planting Requirements for Filterra Systems ................13 Enclosed Local Area Filterra Plant List ® Bioretention Systems ENGINEERED SOLUTIONS www.ContechES.com/filterra | 800-338-11224 Introduction Thank you for your purchase of the Filterra® Bioretention System. Filterra is a specially engineered stormwater treatment system incorporating high performance biofiltration media to remove pollutants from stormwater runoff. The system’s biota (vegetation and soil microorganisms) then further breakdown and absorb captured pollutants. All components of the system work together to provide a sustainable long-term solution for treating stormwater runoff. The Filterra system has been delivered to you with protection in place to resist intrusion of construction related sediment which can contaminate the biofiltration media and result in inadequate system performance. These protection devices are intended as a best practice and cannot fully prevent contamination. It is the purchaser’s responsibility to provide adequate measures to prevent construction related runoff from entering the Filterra system. Included with your purchase is Activation of the Filterra system by the manufacturer as well as a 1-year warranty from delivery of the system and 1-year of routine maintenance (mulch replacement, debris removal, and pruning of vegetation) up to twice during the first year after activation. Design and Installation Each project presents different scopes for the use of Filterra systems. Information and help may be provided to the design engineer during the planning process. Correct Filterra box sizing (by rainfall region) is essential to predict pollutant removal rates for a given area. The engineer shall submit calculations for approval by the local jurisdiction. The contractor is responsible for the correct installation of Filterra units as shown in approved plans. A comprehensive installation manual is available at www.ContechES.com. Activation Overview Activation of the Filterra system is a procedure completed by the manufacturer to place the system into working condition. This involves the following items: • Removal of construction runoff protection devices • Planting of the system’s vegetation • Placement of pretreatment mulch layer using mulch certified for use in Filterra systems. Activation MUST be provided by the manufacturer to ensure proper site conditions are met for Activation, proper installation of the vegetation, and use of pretreatment mulch certified for use in Filterra systems. www.ContechES.com/filterra | 800-338-1122 5 Minimum Requirements The minimum requirements for Filterra Activation are as follows: 1. The site landscaping must be fully stabilized, i.e. full landscaping installed and some grass cover (not just straw and seed) is required to reduce sediment transport. Construction debris and materials should be removed from surrounding area. 2. Final paving must be completed. Final paving ensures that paving materials will not enter and contaminate the Filterra system during the paving process, and that the plant will receive runoff from the drainage area, assisting with plant survival for the Filterra system. 3. Filterra throat opening should be at least 4” in order to ensure adequate capacity for inflow and debris. An Activation Checklist is included on page 12 to ensure proper conditions are met for Contech to perform the Activation services. A charge of $500.00 will be invoiced for each Activation visit requested by Customer where Contech determines that the site does not meet the conditions required for Activation. www.ContechES.com/filterra | 800-338-11226 Filterra Plant Selection Overview A Plant List has been enclosed with this packet highlighting recommended plants for Filterra systems in your area. Keep in mind that plants are subject to availability due to seasonality and required minimum size for the Filterra system. Plants installed in the Filterra system are container plants (max 15 gallon) from nursery stock and will be immature in height and spread at Activation. It is the responsibility of the owner to provide adequate irrigation when necessary to the plant of the Filterra system. The “Planting Requirements for Filterra Systems” document is included as an appendix and discusses proper selection and care of the plants within Filterra systems. Warranty Overview Refer to the Contech Engineered Solutions LLC Stormwater Treatment System LIMITED WARRANTY for further information. The following conditions may void the Filterra system’s warranty and waive the manufacturer provided Activation and Maintenance services: • Unauthorized activation or performance of any of the items listed in the activation overview • Any tampering, modifications or damage to the Filterra system or runoff protection devices • Removal of any Filterra system components • Failure to prevent construction related runoff from entering the Filterra system • Failure to properly store and protect any Filterra components (including media and underdrain stone) that may be shipped separately from the vault Routine Maintenance Guidelines With proper routine maintenance, the biofiltration media within the Filterra system should last as long as traditional bioretention media. Routine maintenance is included by the manufacturer on all Filterra systems for the first year after activation. This includes a maximum of 2 visits to remove debris, replace pretreatment mulch, and prune the vegetation. More information is provided in the Operations and Maintenance Guidelines. Some Filterra systems also contain pretreatment or outlet bays. Depending on site pollutant loading, these bays may require periodic removal of debris, however this is not included in the first year of maintenance, and would likely not be required within the first year of operation. These services, as well as routine maintenance outside of the included first year, can be provided by certified maintenance providers listed on the Contech website. Training can also be provided to other stormwater maintenance or landscape providers. www.ContechES.com/filterra | 800-338-1122 7 Why Maintain? All stormwater treatment systems require maintenance for effective operation. This necessity is often incorporated in your property’s permitting process as a legally binding BMP maintenance agreement. Other reasons to maintain are: • Avoiding legal challenges from your jurisdiction’s maintenance enforcement program. • Prolonging the expected lifespan of your Filterra media. • Avoiding more costly media replacement. • Helping reduce pollutant loads leaving your property. Simple maintenance of the Filterra is required to continue effective pollutant removal from stormwater runoff before discharge into downstream waters. This procedure will also extend the longevity of the living biofilter system. The unit will recycle and accumulate pollutants within the biomass, but is also subjected to other materials entering the inlet. This may include trash, silt and leaves etc. which will be contained above the mulch layer. Too much silt may inhibit the Filterra’s flow rate, which is the reason for site stabilization before activation. Regular replacement of the mulch stops accumulation of such sediment. When to Maintain? Contech includes a 1-year maintenance plan with each system purchase. Annual included maintenance consists of a maximum of two (2) scheduled visits. Additional maintenance may be necessary depending on sediment and trash loading (by Owner or at additional cost). The start of the maintenance plan begins when the system is activated. Maintenance visits are scheduled seasonally; the spring visit aims to clean up after winter loads including salts and sands while the fall visit helps the system by removing excessive leaf litter. It has been found that in regions which receive between 30-50 inches of annual rainfall, (2) two visits are generally required; regions with less rainfall often only require (1) one visit per annum. Varying land uses can affect maintenance frequency; e.g. some fast food restaurants require more frequent trash removal. Contributing drainage areas which are subject to new development wherein the recommended erosion and sediment control measures have not been implemented may require additional maintenance visits. Some sites may be subjected to extreme sediment or trash loads, requiring more frequent maintenance visits. This is the reason for detailed notes of maintenance actions per unit, helping the Supplier and Owner predict future maintenance frequencies, reflecting individual site conditions. Owners must promptly notify the (maintenance) Supplier of any damage to the plant(s), which constitute(s) an integral part of the bioretention technology. Owners should also advise other landscape or maintenance contractors to leave all maintenance to the Supplier (i.e. no pruning or fertilizing) during the first year. www.ContechES.com/filterra | 800-338-11228 Exclusion of Services Clean up due to major contamination such as oils, chemicals, toxic spills, etc. will result in additional costs and are not covered under the Supplier maintenance contract. Should a major contamination event occur the Owner must block off the outlet pipe of the Filterra (where the cleaned runoff drains to, such as drop inlet) and block off the throat of the Filterra. The Supplier should be informed immediately. Maintenance Visit Summary Each maintenance visit consists of the following simple tasks (detailed instructions below). 1. Inspection of Filterra and surrounding area 2. Removal of tree grate and erosion control stones 3. Removal of debris, trash and mulch 4. Mulch replacement 5. Plant health evaluation and pruning or replacement as necessary 6. Clean area around Filterra 7. Complete paperwork Maintenance Tools, Safety Equipment and Supplies Ideal tools include: camera, bucket, shovel, broom, pruners, hoe/rake, and tape measure. Appropriate Personal Protective Equipment (PPE) should be used in accordance with local or company procedures. This may include impervious gloves where the type of trash is unknown, high visibility clothing and barricades when working in close proximity to traffic and also safety hats and shoes. A T-Bar or crowbar should be used for moving the tree grates (up to 170 lbs ea.). Most visits require minor trash removal and a full replacement of mulch. See below for actual number of bagged mulch that is required in each media bay size. Mulch should be a double shredded, hardwood variety. Some visits may require additional Filterra engineered soil media available from the Supplier. Box Length Box Width Filter Surface Area (ft²)Volume at 3” (ft³)# of 2 ft³ Mulch Bags 4 4 4 4 2 6 4 6 6 3 8 4 8 8 4 6 6 9 9 5 8 6 12 12 6 10 6 15 15 8 12 6 18 18 9 13 7 23 23 12 www.ContechES.com/filterra | 800-338-1122 9 1. Inspection of Filterra and surrounding area • Record individual unit before maintenance with photograph (numbered). Record on Maintenance Report (see example in this document) the following: 2. Removal of tree grate and erosion control stones • Remove cast iron grates for access into Filterra box. • Dig out silt (if any) and mulch and remove trash & foreign items. 3. Removal of debris, trash and mulch • After removal of mulch and debris, measure distance from the top of the Filterra engineered media soil to the top of the top slab. Compare the measured distance to the distance shown on the approved Contract Drawings for the system. Add Filterra media (not top soil or other) to bring media up as needed to distance indicated on drawings. Record on Maintenance Report the following: Standing Water yes | no Damage to Box Structure yes | no Damage to Grate yes | no Is Bypass Clear yes | no If yes answered to any of these observations, record with close-up photograph (numbered). Record on Maintenance Report the following: Silt/Clay yes | no Cups/ Bags yes | no Leaves yes | no Buckets Removed ________ Record on Maintenance Report the following: Distance to Top of Top Slab (inches) ________ Inches of Media Added ________ Maintenance Visit Procedure Keep sufficient documentation of maintenance actions to predict location specific maintenance frequencies and needs. An example Maintenance Report is included in this manual. www.ContechES.com/filterra | 800-338-112210 4. Mulch replacement • Add double shredded mulch evenly across the entire unit to a depth of 3”. • Refer to Filterra Mulch Specifications for information on acceptable sources. • Ensure correct repositioning of erosion control stones by the Filterra inlet to allow for entry of trash during a storm event. • Replace Filterra grates correctly using appropriate lifting or moving tools, taking care not to damage the plant. 5. Plant health evaluation and pruning or replacement as necessary • Examine the plant’s health and replace if necessary. • Prune as necessary to encourage growth in the correct directions 6. Clean area around Filterra • Clean area around unit and remove all refuse to be disposed of appropriately. 7. Complete paperwork • Deliver Maintenance Report and photographs to appropriate location (normally Contech during maintenance contract period). • Some jurisdictions may require submission of maintenance reports in accordance with approvals. It is the responsibility of the Owner to comply with local regulations. Record on Maintenance Report the following: Height above Grate _____________________(ft) Width at Widest Point _____________________(ft) Health healthy | unhealthy Damage to Plant yes | no Plant Replaced yes | no www.ContechES.com/filterra | 800-338-1122 11 Maintenance Checklist Filterra Inspection & Maintenance Log Filterra System Size/Model: _____________________________Location: ____________________________________________ Drainage System Failure Problem Conditions to Check Condition that Should Exist Actions Inlet Excessive sediment or trash accumulation. Accumulated sediments or trash impair free flow of water into Filterra. Inlet should be free of obstructions allowing free distributed flow of water into Filterra. Sediments and/or trash should be removed. Mulch Cover Trash and floatable debris accumulation.Excessive trash and/or debris accumulation.Minimal trash or other debris on mulch cover. Trash and debris should be removed and mulch cover raked level. Ensure bark nugget mulch is not used. Mulch Cover “Ponding” of water on mulch cover. “Ponding” in unit could be indicative of clogging due to excessive fine sediment accumulation or spill of petroleum oils. Stormwater should drain freely and evenly through mulch cover. Recommend contact manufacturer and replace mulch as a minimum. Vegetation Plants not growing or in poor condition. Soil/mulch too wet, evidence of spill. Incorrect plant selection. Pest infestation. Vandalism to plants. Plants should be healthy and pest free.Contact manufacturer for advice. Vegetation Plant growth excessive. Plants should be appropriate to the species and location of Filterra. Trim/prune plants in accordance with typical landscaping and safety needs. Structure Structure has visible cracks. Cracks wider than 1/2 inch or evidence of soil particles entering the structure through the cracks. Vault should be repaired. Maintenance is ideally to be performed twice annually. Date Mulch & Debris Removed Depth of Mulch Added Mulch Brand Height of Vegetation Above Grate Vegetation Species Issues with System Comments 1/1/17 5 – 5 gal Buckets 3”Lowe’s Premium Brown Mulch 4’Galaxy Magnolia - Standing water in downstream structure - Removed blockage in downstream structure www.ContechES.com/filterra | 800-338-112212 Appendix 1 – Filterra® Activation Checklist Project Name: ________________________________________Company: ______________________________________________ Site Contact Name: _______________________________________Site Contact Phone/Email: ____________________________ Site Owner/End User Name: _________________________Site Owner/End User Phone/Email: ____________________________ Preferred Activation Date: ___________________________________(provide 2 weeks minimum from date this form is submitted) Site Designation System Size Final Pavement / Top Coat Complete Landscaping Complete / Grass Emerging Construction materials / Piles / Debris Removed Throat Opening Measures 4” Min. Height Plant Species Requested  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No  Yes  No NOTE: A charge of $500.00 will be invoiced for each Activation visit requested by Customer where Contech determines that the site does not meet the conditions required for Activation. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized Activations will void the system warranty and waive manufacturer supplied Activation and 1st Year Maintenance. Attach additional sheets as necessary. Signature Date ENGINEERED SOLUTIONS www.ContechES.com/filterra | 800-338-1122 13 Appendix 2 – Planting Requirements for Filterra® Systems Plant Material Selection • Select plant(s) as specified in the engineering plans and specifications. • Select plant(s) with full root development but not to the point where root bound. • Use local nursery container plants only. Ball and burlapped plants are not permitted. • For precast Filterra systems with a tree grate, plant(s) must not have scaffold limbs at least 14 inches from the crown due to spacing between the top of the mulch and the tree grate. Lower branches can be pruned away provided there are sufficient scaffold branches for tree or shrub development. • For precast Filterra systems with a tree grate, at the time of installation, it is required that plant(s) must be at least 6” above the tree grate opening at installation for all Filterra configurations. This DOES NOT apply to Full Grate Cover designs. • Plant(s) shall not have a mature height greater than 25 feet. • For standard 21” media depth, a 7 – 15 gallon container size shall be used. Media less than 21” (Filterra boxes only) will require smaller container plants. • For precast Filterra systems, plant(s) should have a single trunk at installation, and pruning may be necessary at activation and maintenance for some of the faster growing species, or species known to produce basal sprouts. Plant Installation • During transport protect the plant leaves from wind and excessive jostling. • Prior to removing the plant(s) from the container, ensure the soil moisture is sufficient to maintain the integrity of the root ball. If needed, pre-wet the container plant. • Cut away any roots which are growing out of the container drain holes. Plants with excessive root growth from the drain holes should be rejected. • Plant(s) should be carefully removed from the pot by gently pounding on the sides of the container with the fist to loosen root ball. Then carefully slide out. Do not lift plant(s) by trunk as this can break roots and cause soil to fall off. Extract the root ball in a horizontal position and support it to prevent it from breaking apart. Alternatively the pot can be cut away to minimize root ball disturbance. • Remove any excess soil from above the root flare after removing plant(s) from container. • Excavate a hole with a diameter 4” greater than the root ball, gently place the plant(s). • If plant(s) have any circling roots from being pot bound, gently tease them loose without breaking them. • If root ball has a root mat on the bottom, it should be shaved off with a knife just above the mat line. • Plant the tree/shrub/grass with the top of the root ball 1” above surrounding media to allow for settling. • All plants should have the main stem centered in the tree grate (where applicable) upon completion of installation. • With all trees/shrubs, remove dead, diseased, crossed/rubbing, sharply crotched branches or branches growing excessively long or in wrong direction compared to majority of branches. • To prevent transplant shock (especially if planting takes place in the hot season), it may be necessary to prune some of the foliage to compensate for reduced root uptake capacity. This is accomplished by pruning away some of the smaller secondary branches or a main scaffold branch if there are too many. Too much foliage relative to the root ball can dehydrate and damage the plant. • Plant staking may be required. www.ContechES.com/filterra | 800-338-112214 Mulch Installation • Only mulch that has been meeting Contech Engineered Solutions’ mulch specifications can be used in the Filterra system. • Mulch must be applied to a depth of 3” evenly over the surface of the media. Irrigation Requirements • Each Filterra system must receive adequate irrigation to ensure survival of the living system during periods of drier weather. • Irrigation sources include rainfall runoff from downspouts and/or gutter flow, applied water through the tree grate or in some cases from an irrigation system with emitters installed during construction. • At Activation: Apply about one (cool climates) to two (warm climates) gallons of water per inch of trunk diameter over the root ball. • During Establishment: In common with all plants, each Filterra plant will require more frequent watering during the establishment period. One inch of applied water per week for the first three months is recommended for cooler climates (2 to 3 inches for warmer climates). If the system is receiving rainfall runoff from the drainage area, then irrigation may not be needed. Inspection of the soil moisture content can be evaluated by gently brushing aside the mulch layer and feeling the soil. Be sure to replace the mulch when the assessment is complete. Irrigate as needed**. • Established Plants: Established plants have fully developed root systems and can access the entire water column in the media. Therefore irrigation is less frequent but requires more applied water when performed. For a mature system assume 3.5 inches of available water within the media matrix. Irrigation demand can be estimated as 1” of irrigation demand per week. Therefore if dry periods exceed 3 weeks, irrigation may be required. It is also important to recognize that plants which are exposed to windy areas and reflected heat from paved surfaces may need more frequent irrigation. Long term care should develop a history which is more site specific. ** Five gallons per square yard approximates 1 inch of water Therefore for a 6’ by 6’ Filterra approximately 20-60 gallons of water is needed. To ensure even distribution of water it needs to be evenly sprinkled over the entire surface of the filter bed, with special attention to make sure the root ball is completely wetted. NOTE: if needed, measure the time it takes to fill a five gallon bucket to estimate the applied water flow rate then calculate the time needed to irrigate the Filterra. For example, if the flow rate of the sprinkler is 5 gallons/minute then it would take 12 minutes to irrigate a 6’ by 6’ filter. Notes ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ PDF 1/18 © 2018 Contech Engineered Solutions LLC, a QUIKRETE Company 9025 Centre Pointe Drive, Suite 400 West Chester, OH 45069 info@conteches.com | 800-338-1122 www.ContechES.com ALL RIGHTS RESERVED. PRINTED IN THE USA. NOTHING IN THIS CATALOG SHOULD BE CONSTRUED AS A WARRANTY. APPLICATIONS SUGGESTED HEREIN ARE DESCRIBED ONLY TO HELP READERS MAKE THEIR OWN EVALUATIONS AND DECISIONS, AND ARE NEITHER GUARANTEES NOR WARRANTIES OF SUITABILITY FOR ANY APPLICATION. CONTECH MAKES NO WARRANTY WHATSOEVER, EXPRESS OR IMPLIED, RELATED TO THE APPLICATIONS, MATERIALS, COATINGS, OR PRODUCTS DISCUSSED HEREIN. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE ARE DISCLAIMED BY CONTECH. SEE CONTECH’S CONDITIONS OF SALE (AVAILABLE AT WWW.CONTECHES.COM/COS) FOR MORE INFORMATION. ® Bioretention Systems ENGINEERED SOLUTIONS 1 September 2019 GENERAL USE LEVEL DESIGNATION FOR BASIC (TSS), ENHANCED, PHOSPHORUS & OIL TREATMENT For CONTECH Engineered Solutions Filterra® Ecology’s Decision: Based on Contech’s submissions, including the Final Technical Evaluation Reports, dated August 2019, March 2014, December 2009, and additional information provided to Ecology dated October 9, 2009, Ecology hereby issues the following use level designations: 1. A General Use Level Designation for Basic, Enhanced, Phosphorus, and Oil Treatment for the Filterra® system constructed with a minimum media thickness of 21 inches (1.75 feet), at the following water quality design hydraulic loading rates: Treatment Infiltration Rate (in/hr) for use in Sizing Basic 175 Phosphorus 100 Oil 50 Enhanced 175 2. The Filterra is not appropriate for oil spill-control purposes. 3. Ecology approves Filterra systems for treatment at the hydraulic loading rates listed above, to achieve the maximum water quality design flow rate. Calculate the water quality design flow rates using the following procedures:  Western Washington: for treatment installed upstream of detention or retention, the water quality design flow rate is the peak 15-minute flow rate as calculated using the latest version of the Western Washington Hydrology Model or other Ecology-approved continuous runoff model.  Eastern Washington: For treatment installed upstream of detention or retention, the water quality design flow rate is the peak 15-minute flow rate as calculated using one of the three flow rate based methods described in Chapter 2.2.5 of the Stormwater Management Manual for Eastern Washington (SWMMEW) or local manual.  Entire State: For treatment installed downstream of detention, the water quality design flow rate is the full 2-year release rate of the detention facility. 2 4. This General Use Level Designation has no expiration date, but Ecology may revoke or amend the designation, and is subject to the conditions specified below. Ecology’s Conditions of Use: Filterra systems shall comply with these conditions shall comply with the following conditions: 1. Design, assemble, install, operate, and maintain the Filterra systems in accordance with applicable Contech Filterra manuals and this Ecology Decision. 2. The minimum size filter surface-area for use in Washington is determined by using the design water quality flow rate (as determined in this Ecology Decision, Item 3, above) and the Infiltration Rate from the table above (use the lowest applicable Infiltration Rate depending on the level of treatment required). Calculate the required area by dividing the water quality design flow rate (cu-ft/sec) by the Infiltration Rate (converted to ft/sec) to obtain required surface area (sq-ft) of the Filterra unit. 3. Each site plan must undergo Contech Filterra review before Ecology can approve the unit for site installation. This will ensure that design parameters including site grading and slope are appropriate for use of a Filterra unit. 4. Filterra media shall conform to the specifications submitted to and approved by Ecology and shall be sourced from Contech Engineered Solutions, LLC with no substitutions. 5. Maintenance includes removing trash, degraded mulch, and accumulated debris from the filter surface and replacing the mulch layer. Use inspections to determine the site-specific maintenance schedules and requirements. Follow maintenance procedures given in the most recent version of the Filterra Operation and Maintenance Manual. 6. Maintenance: The required maintenance interval for stormwater treatment devices is often dependent upon the degree of pollutant loading from a particular drainage basin. Therefore, Ecology does not endorse or recommend a “one size fits all” maintenance cycle for a particular model/size of manufactured treatment device.  Contech designs Filterra systems for a target maintenance interval of 6 months in the Pacific Northwest. Maintenance includes removing and replacing the mulch layer above the media along with accumulated sediment, trash, and captured organic materials therein, evaluating plant health, and pruning the plant if deemed necessary.  Conduct maintenance following manufacturer’s guidelines. 7. Filterra systems come in standard sizes. 8. Install the Filterra in such a manner that flows exceeding the maximum Filterra operating rate are conveyed around the Filterra mulch and media and will not resuspend captured sediment. 9. Discharges from the Filterra units shall not cause or contribute to water quality standards violations in receiving waters. 3 Approved Alternate Configurations Filterra Internal Bypass - Pipe (FTIB-P) 1. The Filterra® Internal Bypass – Pipe allows for piped-in flow from area drains, grated inlets, trench drains, and/or roof drains. Design capture flows and peak flows enter the structure through an internal slotted pipe. Filterra® inverted the slotted pipe to allow design flows to drop through to a series of splash plates that then disperse the design flows over the top surface of the Filterra® planter area. Higher flows continue to bypass the slotted pipe and convey out the structure. 2. To select a FTIB-P unit, the designer must determine the size of the standard unit using the sizing guidance described above. Filterra Internal Bypass – Curb (FTIB-C) 1. The Filterra® Internal Bypass –Curb model (FTIB-C) incorporates a curb inlet, biofiltration treatment chamber, and internal high flow bypass in one single structure. Filterra® designed the FTIB-C model for use in a “Sag” or “Sump” condition and will accept flows from both directions along a gutter line. An internal flume tray weir component directs treatment flows entering the unit through the curb inlet to the biofiltration treatment chamber. Flows in excess of the water quality treatment flow rise above the flume tray weir and discharge through a standpipe orifice; providing bypass of untreated peak flows. Americast manufactures the FTIB-C model in a variety of sizes and configurations and you may use the unit on a continuous grade when a single structure providing both treatment and high flow bypass is preferred. The FTIB-C model can also incorporate a separate junction box chamber to allow larger diameter discharge pipe connections to the structure. 2. To select a FTIB-C unit, the designer must determine the size of the standard unit using the sizing guidance described above. Filterra® Shallow 1. The Filterra Shallow provides additional flexibility for design engineers and designers in situations where various elevation constraints prevent application of a standard Filterra configuration. Engineers can design this system up to six inches shallower than any of the previous Filterra unit configurations noted above. 2. Ecology requires that the Filterra Shallow provide a media contact time equivalent to that of the standard unit. This means that with a smaller depth of media, the surface area must increase. 3. To select a Filterra Shallow System unit, the designer must first identify the size of the standard unit using the modeling guidance described above. 4. Once the size of the standard Filterra unit is established using the sizing technique described above, use information from the following table to select the appropriate size Filterra Shallow System unit. 4 Shallow Unit Basic, Enhanced, and Oil Treatment Sizing Standard Depth Equivalent Shallow Depth 4x4 4x6 or 6x4 4x6 or 6x4 6x6 4x8 or 8x4 6x8 or 8x6 6x6 6x10 or 10x6 6x8 or 8x6 6x12 or 12x6 6x10 or 10x6 13x7 Notes: 1. Shallow Depth Boxes are less than the standard depth of 3.5 feet but no less than 3.0 feet deep (TC to INV). Applicant: Contech Engineered Solutions, LLC. Applicant’s Address: 11815 NE Glenn Widing Drive Portland, OR 97220 Application Documents:  State of Washington Department of Ecology Application for Conditional Use Designation, Americast (September 2006)  Quality Assurance Project Plan Filterra® Bioretention Filtration System Performance Monitoring, Americast (April 2008)  Quality Assurance Project Plan Addendum Filterra® Bioretention Filtration System Performance Monitoring, Americast (June 2008)  Draft Technical Evaluation Report Filterra® Bioretention Filtration System Performance Monitoring, Americast (August 2009)  Final Technical Evaluation Report Filterra® Bioretention Filtration System Performance Monitoring, Americast (December 2009)  Technical Evaluation Report Appendices Filterra® Bioretention Filtration System Performance Monitoring, Americast, (August 2009)  Memorandum to Department of Ecology Dated October 9, 2009 from Americast, Inc. and Herrera Environmental Consultants  Quality Assurance Project Plan Filterra® Bioretention System Phosphorus treatment and Supplemental Basic and Enhanced Treatment Performance Monitoring, Americast (November 2011)  Filterra® letter August 24, 2012 regarding sizing for the Filterra® Shallow System.  University of Virginia Engineering Department Memo by Joanna Crowe Curran, Ph. D dated March 16, 2013 concerning capacity analysis of Filterra® internal weir inlet tray.  Terraphase Engineering letter to Jodi Mills, P.E. dated April 2, 2013 regarding Terraflume Hydraulic Test, Filterra® Bioretention System and attachments.  Technical Evaluation Report, Filterra® System Phosphorus Treatment and Supplemental Basic Treatment Performance Monitoring. March 27th, 2014.  State of Washington Department of Ecology Application for Conditional Use Level Designation, Contech Engineered Solutions (May 2015) 5  Quality Assurance Project Plan Filterra® Bioretention System, Contech Engineered Solutions (May 2015)  Filterra Bioretention System Armco Avenue General Use Level Designation Technical Evaluation Report, Contech Engineered Solutions (August 2019) Applicant’s Use Level Request: General Level Use Designation for Basic (175 in/hr), Enhanced (175 in/hr), Phosphorus (100 in/hr), and Oil Treatment (50 in/hr). Applicant’s Performance Claims: Field-testing and laboratory testing show that the Filterra® unit is promising as a stormwater treatment best management practice and can meet Ecology’s performance goals for basic, enhanced, phosphorus, and oil treatment. Findings of Fact: Field Testing 2015-2019 1. Contech completed field testing of a 4 ft. x 4 ft. Filterra® unit at one site in Hillsboro, Oregon from September 2015 to July 2019. Throughout the monitoring period a total of 24 individual storm events were sampled, of which 23 qualified for TAPE sampling criteria. 2. Contech encountered several unanticipated events and challenges that prevented them from collecting continuous flow and rainfall data. An analysis of the flow data from the sampled events, including both the qualifying and non-qualifying events, demonstrated the system treated over 99 % of the influent flows. Peak flows during these events ranged from 25 % to 250 % of the design flow rate of 29 gallons per minute. 3. Of the 23 TAPE qualified sample events, 13 met requirements for TSS analysis. Influent concentrations ranged from 20.8 mg/L to 83 mg/L, with a mean concentration of 46.3 mg/L. The UCL95 mean effluent concentration was 15.9 mg/L, meeting the 20 mg/L performance goal for Basic Treatment. 4. All 23 TAPE qualified sample events met requirements for dissolved zinc analysis. Influent concentrations range from 0.0384 mg/L to 0.2680 mg/L, with a mean concentration of 0.0807 mg/L. The LCL 95 mean percent removal was 62.9 %, meeting the 60 % performance goal for Enhanced Treatment. 5. Thirteen of the 23 TAPE qualified sample events met requirements for dissolved copper analysis. Influent concentrations ranged from 0.00543 mg/L to 0.01660 mg/L, with a mean concentration of 0.0103 mg/L. The LCL 95 mean percent removal was 41.2 %, meeting the 30 % performance goal for Enhanced Treatment. 6. Total zinc concentrations were analyzed for all 24 sample events. Influent EMCs for total zinc ranged from 0.048 mg/L to 5.290 mg/L with a median of 0.162 mg/L. Corresponding effluent EMCs for total zinc ranged from 0.015 mg/L to 0.067 mg/L with a median of 6 0.029 mg/L. Total event loadings for the study for total zinc were 316.85 g at the influent and 12.92 g at the effluent sampling location, resulting in a summation of loads removal efficiency of 95.9 %. 7. Total copper concentrations were analyzed for all 24 sample events. Influent EMCs for total copper ranged from 0.003 mg/L to 35.600 mg/L with a median value of 0.043 mg/L. Corresponding effluent EMCs for total copper ranged from 0.002 mg/L to 0.015 mg/L with a median of 0.004 mg/L. Total event loadings for total copper for the study were 1,810.06 g at the influent and 1.90 g at the effluent sampling location, resulting in a summation of loads removal efficiency of 99.9 %. Field Testing 2013 1. Filterra completed field-testing of a 6.5 ft x 4 ft. unit at one site in Bellingham, Washington. Continuous flow and rainfall data collected from January 1, 2013 through July 23, 2013 indicated that 59 storm events occurred. Water quality data was obtained from 22 storm events. Not all the sampled storms produced information that met TAPE criteria for storm and/or water quality data. 2. The system treated 98.9 % of the total 8-month runoff volume during the testing period. Consequently, the system achieved the goal of treating 91 % of the volume from the site. Stormwater runoff bypassed Filterra treatment during four of the 59 storm events. 3. Of the 22 sampled events, 18 qualified for TSS analysis (influent TSS concentrations ranged from 25 to 138 mg/L). The data were segregated into sample pairs with influent concentration greater than and less than 100 mg/L. The UCL95 mean effluent concentration for the data with influent less than 100 mg/L was 5.2 mg/L, below the 20- mg/L threshold. Although the TAPE guidelines do not require an evaluation of TSS removal efficiency for influent concentrations below 100 mg/L, the mean TSS removal for these samples was 90.1 %. Average removal of influent TSS concentrations greater than 100 mg/L (three events) was 85 %. In addition, the system consistently exhibited TSS removal greater than 80 % at flow rates equivalent to a 100 in/hr infiltration rate and was observed at 150 in/hr. 4. Ten of the 22 sampled events qualified for TP analysis. Americast augmented the dataset using two sample pairs from previous monitoring at the site. Influent TP concentrations ranged from 0.11 to 0.52 mg/L. The mean TP removal for these twelve events was 72.6 %. The LCL95 mean percent removal was 66.0, well above the TAPE requirement of 50 %. Treatment above 50 % was evident at 100 in/hr infiltration rate and as high as 150 in/hr. Consequently, the Filterra test system met the TAPE Phosphorus Treatment goal at 100 in/hr. Influent ortho-P concentrations ranged from 0.005 to 0.012 mg/L; effluent ortho-P concentrations ranged from 0.005 to 0.013 mg/L. The reporting limit/resolution for the ortho-P test method is 0.01 mg/L, therefore the influent and effluent ortho-P concentrations were both at and near non-detect concentrations. 7 Field Testing 2008-2009 1. Filterra completed field-testing at two sites at the Port of Tacoma. Continuous flow and rainfall data collected during the 2008-2009 monitoring period indicated that 89 storm events occurred. The monitoring obtained water quality data from 27 storm events. Not all the sampled storms produced information that met TAPE criteria for storm and/or water quality data. 2. During the testing at the Port of Tacoma, 98.96 to 99.89 % of the annual influent runoff volume passed through the POT1 and POT2 test systems respectively. Stormwater runoff bypassed the POT1 test system during nine storm events and bypassed the POT2 test system during one storm event. Bypass volumes ranged from 0.13 % to 15.3% of the influent storm volume. Both test systems achieved the 91 % water quality treatment-goal over the 1-year monitoring period. 3. Consultants observed infiltration rates as high as 133 in/hr during the various storms. Filterra did not provide any paired data that identified percent removal of TSS, metals, oil, or phosphorus at an instantaneous observed flow rate. 4. The maximum storm average hydraulic loading rate associated with water quality data is <40 in/hr, with the majority of flow rates < 25 in/hr. The average instantaneous hydraulic loading rate ranged from 8.6 to 53 in/hr. 5. The field data showed a removal rate greater than 80 % for TSS with an influent concentration greater than 20 mg/L at an average instantaneous hydraulic loading rate up to 53 in/hr (average influent concentration of 28.8 mg/L, average effluent concentration of 4.3 mg/L). 6. The field data showed a removal rate generally greater than 54 % for dissolved zinc at an average instantaneous hydraulic loading rate up to 60 in/hr and an average influent concentration of 0.266 mg/L (average effluent concentration of 0.115 mg/L). 7. The field data showed a removal rate generally greater than 40 % for dissolved copper at an average instantaneous hydraulic loading rate up to 35 in/hr and an average influent concentration of 0.0070 mg/L (average effluent concentration of 0.0036 mg/L). 8. The field data showed an average removal rate of 93 % for total petroleum hydrocarbon (TPH) at an average instantaneous hydraulic loading rate up to 53 in/hr and an average influent concentration of 52 mg/L (average effluent concentration of 2.3 mg/L). The data also shows achievement of less than 15 mg/L TPH for grab samples. Filterra provided limited visible sheen data due to access limitations at the outlet monitoring location. 9. The field data showed low percentage removals of total phosphorus at all storm flows at an average influent concentration of 0.189 mg/L (average effluent concentration of 0.171 mg/L). We may relate the relatively poor treatment performance of the Filterra system at this location to influent characteristics for total phosphorus that are unique to the Port of Tacoma site. It appears that the Filterra system will not meet the 50 % removal performance goal when the majority of phosphorus in the runoff is expected to be in the dissolved form. 8 Laboratory Testing 1. Filterra performed laboratory testing on a scaled down version of the Filterra unit. The lab data showed an average removal from 83-91 % for TSS with influents ranging from 21 to 320 mg/L, 82-84 % for total copper with influents ranging from 0.94 to 2.3 mg/L, and 50-61 % for orthophosphate with influents ranging from 2.46 to 14.37 mg/L. 2. Filterra conducted permeability tests on the soil media. 3. Lab scale testing using Sil-Co-Sil 106 showed removals ranging from 70.1 % to 95.5 % with a median removal of 90.7 %, for influent concentrations ranging from 8.3 to 260 mg/L. Filterra ran these laboratory tests at an infiltration rate of 50 in/hr. 4. Supplemental lab testing conducted in September 2009 using Sil-Co-Sil 106 showed an average removal of 90.6 %. These laboratory tests were run at infiltration rates ranging from 25 to 150 in/hr for influent concentrations ranging from 41.6 to 252.5 mg/L. Regression analysis results indicate that the Filterra system’s TSS removal performance is independent of influent concentration in the concentration rage evaluated at hydraulic loading rates of up to 150 in/hr. Contact Information: Applicant: Jeremiah Lehman Contech Engineered Solutions, LLC. 11815 Glenn Widing Dr Portland, OR 97220 (503) 258-3136 jlehman@conteches.com Applicant’s Website: http://www.conteches.com Ecology web link: http://www.ecy.wa.gov/programs/wq/stormwater/newtech/index.html Ecology: Douglas C. Howie, P.E. Department of Ecology Water Quality Program (360) 407-6444 douglas.howie@ecy.wa.gov Date Revision December 2009 GULD for Basic, Enhanced, and Oil granted, CULD for Phosphorus September 2011 Extended CULD for Phosphorus Treatment September 2012 Revised design storm discussion, added Shallow System. January 2013 Revised format to match Ecology standards, changed Filterra contact information February 2013 Added FTIB-P system March 2013 Added FTIB-C system April 2013 Modified requirements for identifying appropriate size of unit 9 June 2013 Modified description of FTIB-C alternate configuration March 2014 GULD awarded for Phosphorus Treatment. GULD updated for a higher flow-rate for Basic Treatment. June 2014 Revised sizing calculation methods March 2015 Revised Contact Information June 2015 CULD for Basic and Enhanced at 100 in/hr infiltration rate September 2019 GULD for Basic and Enhanced at 175 in/hr infiltration rate City of Renton NE 16th St – Jefferson Ave NE Stormwater Green Connections Project Design Report ______________________________________________________________________________ June 2020 KPG APPENDIX H – Offsite Analysis Tables · Project Site TDA A (Lower May Creek Basin) · Project Site TDA B (Johns Creek Basin) CITY OF RENTON SURFACE WATER DESIGN MANUAL2017 City of Renton Surface Water Design Manual12/12/2016Ref 8-B-1 REFERENCE 8-B OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLECITY OF RENTON SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT #2 Basin:Subbasin Name:Subbasin Number:DateSymbolDrainage Component Type, Name, and SizeDrainage Component DescriptionSlopeDistance from Site DischargeExisting ProblemsPotential ProblemsObservations of Field Inspector, Resource Reviewer, or ResidentSee mapType: sheet flow, swale, stream, channel, pipe, pond, flow control/treatment/on-site BMP/facilitySize: diameter, surface areadrainage basin, vegetation, cover, depth, type of sensitive area, volume%¼ ml = 1,320 ft.Constrictions, under capacity, ponding, overtopping, flooding, habitat or organism destruction, scouring, bank sloughing, sedimentation, incision, other erosionTributary area, likelihood of problem, overflow pathways, potential impactsDĂǇƌĞĞŬϭϭϮΗŽŶĐƌĞƚĞWŝƉĞ ZĞƐŝĚĞŶƚŝĂů Ϭ͘ϴͲϱй ϬͲϲϳϬĨƚ EŽŶĞ EŽŶĞ WƌŽďůĞŵƐƵŶůŝŬĞůǇ >ŽǁĞƌDĂǇƌĞĞŬDzϬϬϮϭͬϮϰͬϮϬϭϱΗŽŶĐƌĞƚĞWŝƉĞ ZĞƐŝĚĞŶƚŝĂů ϯ͘ϯй ϲϳϬͲϳϭϬĨƚ EŽŶĞ EŽŶĞ WƌŽďůĞŵƐƵŶůŝŬĞůǇϭϱΗŽŶĐƌĞƚĞWŝƉĞ ZĞƐŝĚĞŶƚŝĂů Ϭ͘ϴй ϳϭϬͲϭ͕ϯϮϬĨƚ EŽŶĞ EŽŶĞ WƌŽďůĞŵƐƵŶůŝŬĞůǇϮϯFigure 3 CITY OF RENTON SURFACE WATER DESIGN MANUALREFERENCE 8-B OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLECITY OF RENTON SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT #2 Basin:Subbasin Name:Subbasin Number:DateSymbolDrainage Component Type, Name, and SizeDrainage Component DescriptionSlopeDistance from Site DischargeExisting ProblemsPotential ProblemsObservations of Field Inspector, Resource Reviewer, or ResidentSee mapType: sheet flow, swale, stream, channel, pipe, pond, flow control/treatment/on-site BMP/facilitySize: diameter, surface areadrainage basin, vegetation, cover, depth, type of sensitive area, volume%¼ ml = 1,320 ft.Constrictions, under capacity, ponding, overtopping, flooding, habitat or organism destruction, scouring, bank sloughing, sedimentation, incision, other erosionTributary area, likelihood of problem, overflow pathways, potential impactsĂƐƚ>ĂŬĞtĂƐŚŝŶŐƚŽŶͲZĞŶƚŽŶϭϯϲΗŽŶĐƌĞƚĞWŝƉĞ ZĞƐŝĚĞŶƚŝĂůϭ͘ϰй ϬͲϭϰϱĨƚ EŽŶĞ EŽŶĞ WƌŽďůĞŵƐƵŶůŝŬĞůǇ:ŽŚŶƐƌĞĞŬ>tZϭͬϮϰͬϮϬϯϲΗDW ZĞƐŝĚĞŶƚŝĂůϬ͘ϯͲϭ͘ϮйϭϰϱͲϭ͕ϯϮϬĨƚ EŽŶĞ EŽŶĞ WƌŽďůĞŵƐƵŶůŝŬĞůǇϮFigure 3