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A_COR Coulon Beach Trestle Replacement - TIR_ Approved
Drainage Plan and Technical Information Report City of Renton Gene Coulon Memorial Beach Park Trestle Bridge Replacement Submitted to City of Renton Renton, Washington March 2022 Submitted by WSP USA 33301 Ninth Avenue South, Suite 300 Federal Way, Washington 98003-2600 30900024.000 SURFACE WATER UTILITY JFarah 03/29/2022 DEVELOPMENT ENGINEERING YQI 03/29/2022 Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page ii of ii GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT TABLE OF CONTENTS SECTION PAGE 1.0 PROJECT OVERVIEW..........................................................................................1 2.0 CONDITIONS AND REQUIREMENTS SUMMARY..............................................2 3.0 OFF-SITE ANALYSIS ...........................................................................................3 4.0 FLOW CONTROL, LOW IMPACT DEVELOPMENT, AND WATER QUALITY FACILITY ANALYSIS AND DESIGN....................................................................4 5.0 CONVEYANCE SYSTEMS ANALYSIS AND DESIGN.........................................5 6.0 SPECIAL REPORTS AND STUDIES....................................................................5 7.0 OTHER PERMITS .................................................................................................5 8.0 CONSTRUCTION STORMWATER POLLUTION PREVENTION ANALYSIS AND DESIGN ........................................................................................................5 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT...........................................................................................................6 10.0 OPERATIONS AND MAINTENANCE MANUAL..................................................6 11.0 CORE REQUIREMENT AND SPECIAL REQUIREMENTS..................................6 11.1 Core Requirement #5 – Construction stormwater pollution prevention 6 11.2 Special Requirement #1 – Area Specific Requirements........................7 11.3 Special Requirement #2 – Flood Hazard Delineation ............................7 11.4 Special Requirement #3 – Flood Protection Facilities...........................7 11.5 Special Requirement #4 – Source Control..............................................7 11.6 Special Requirement #6 – Aquifer Protection........................................7 LIST OF FIGURES Figure 1............................................................................................................................1 Figure 2............................................................................................................................3 Figure 3............................................................................................................................6 LIST OF APPENDICES Appendix A – Technical Information Report (TIR) Worksheet Appendix B – Wetlands and Waterbodies Delineation and Assessment Report Appendix C – Biological Evaluation Appendix D – Geotechnical Report Appendix E – Site Improvement Bond Quantity Worksheet Appendix F – Design Drawings Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 1 of 6 1.0 PROJECT OVERVIEW The Gene Coulon Memorial Beach Park Trestle Bridge Replacement Project (project) is a replacement of an existing timber pile-supported timber trestle pedestrian bridge with a new single-span steel bridge with steel grated decking. The new bridge will conform to Americans with Disabilities Act (ADA) accessibility guidelines. The single-span steel bridge and abutments have been designed to accommodate emergency access and park maintenance vehicles. The replacement of the bridge and abutments will be conducted within the existing footprint of the existing bridge, with the exception of a 60-square-foot overlook at the center of the bridge on the water side. Approximately 535 square feet of asphalt pavement will be removed and replaced on either side of the bridge, and 132-feet of 8-inch diameter water line will be removed, temporarily capped, and replaced. Existing shore protection will be removed in the vicinity of the proposed bridge abutments and replaced within the existing footprint. A 2019 condition assessment indicated severe deterioration of timber piles that support the existing bridge. The purpose of this project is to replace the failing bridge. The need for this project is to provide safe pedestrian access to Park amenities north and south of the bridge. The project is located entirely within the City of Renton, King County, Washington. The project is located in the Gene Coulon Memorial Beach Park, owned by the City of Renton and is in Section 05 Township 23 Range 05 Parcel ID 052305-9010, see Figure 1. Figure 1 – Vicinity Map Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 2 of 6 2.0 CONDITIONS AND REQUIREMENTS SUMMARY The bridge replacement will be approximately 106-feet in length with an approximately 25-feet length of existing 10-foot-wide asphalt (see Appendix F, drawings C-05 and C-10) trail removed and replaced on each side of the bridge totaling approximately 1,950 square feet. There will be no increase in impervious area on the landside of this project, therefore, the quantity of site stormwater and the corresponding runoff rate will not increase. In the existing condition, stormwater disperses through the bridge into Lake Washington and disperses as sheet flow off the pedestrian trail to infiltrate through the vegetated ground on either side of the trail. There are no stormwater facilities within the project limits. Along the shore of Lake Washington, there is armoring of the shoreline with large riprap rock that prevents shoreline erosion. All existing armoring that will be temporarily removed for the installation of the proposed abutments will be replaced to protect the shoreline. Vegetation in the area of the bridge affected by construction will be replaced, see Appendix F, landscaping plans. This project will not change method or the location of stormwater discharge. This project results in less than 5,000 square feet of new plus replaced impervious surface and less than 3/4 acres of new pervious surface. Though project is not within a flood, or erosion hazard zone, it does includes slopes greater that 15% but less than or equal to 25%, see figure 2. Per the City of Renton Surface Water Design Manual 2017 (2017 RSWDM), Figure 1.1.2.A, this project is subject to a targeted drainage review. Figure 2 – Site Specific Hazard Map Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 3 of 6 3.0 OFF-SITE ANALYSIS This Project will not impact the downstream or upstream drainage system. The shoreline adjacent to the paved trail is armored with heavy riprap to prevent bank erosion (see Photos 1 and 2), and there are no other water quality issues that should be considered for stormwater management of this project. Photo 1 Photo 2 Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 4 of 6 4.0 FLOW CONTROL, LOW IMPACT DEVELOPMENT, AND WATER QUALITY FACILITY ANALYSIS AND DESIGN This project is exempt from flow control requirements per section 1.2.3 of the 2017 RSWDM since the proposed project is less than 5,000 square feet of new plus replaced impervious surface, and less than 3/4 acres of new pervious surface added. Stormwater from the Project will drain through the grated deck of the bridge into Lake Washington, and water on the paved surface will be dispersed through sheet flow to each side of the trail and infiltrate through vegetative surfaces on the east side of the trail, or through the gravel shoulder and shore armoring into Lake Washington on the west side of the trail. Water Quality Facilities are not required as the bridge and trail are not considered a pollution generating impervious surface. 5.0 CONVEYANCE SYSTEMS ANALYSIS AND DESIGN There are no conveyance systems required for the Project. 6.0 SPECIAL REPORTS AND STUDIES This Project is located near wetlands and will require in-water work. A “Wetlands and Waterbodies Delineation and Assessment Report” by WSP USA (see Appendix B), and “Biological Evaluation” by WSP USA (see Appendix C) were prepared for the project. Additionally, a site-specific geotechnical report was completed by PanGEO Inc. (see Appendix D). 7.0 OTHER PERMITS This Project will include work near wetlands and require in-water work. Applications have been submitted for the United States Army Corps of Engineers (USACE) Nationwide Permit (NWP) 3, Maintenance (Federal Register January 6, 2017, Vol. 82, No. 4), Endangered Species Act, Hydraulic Project Approval, State Environmental Policy Act and Shoreline Exemption, Critical Areas, Land Use Permit and United States Coast Guard Bridge Permit exemption. All of the permits have been applied for and received. It was determined by USACE and Washington Department of Ecology that a 401 Water Quality Certification is not required. 8.0 CONSTRUCTION STORMWATER POLLUTION PREVENTION ANALYSIS AND DESIGN Temporary erosion and sediment controls (TESC) for the Project are shown in the final plans, see Figure 3. Prior to and during construction, the TESC plans and details, and the adherence to the of the stormwater pollution prevention and spill control plan will be the responsibility of the contractor. Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 5 of 6 Figure 3 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT. See Appendix E for the City’s Bond Quantity Work Sheet. 10.0 OPERATIONS AND MAINTENANCE MANUAL This Project does not include new stormwater facilities. Maintenance for the landscaping, planting areas, and bridge maintenance are conducted by the Parks Department staff as required. 11.0 CORE REQUIREMENT AND SPECIAL REQUIREMENTS 11.1 CORE REQUIREMENT #5 – CONSTRUCTION STORMWATER POLLUTION PREVENTION Included in the final drawings are temporary erosion and sediment controls, and erosion and sediment control best management practices requirements per Appendix D, of the 2017 RSWDM. As part of the construction contract, the contractor will prepare and submit a Stormwater Pollution Prevention Plan to the City of Renton that must be accepted prior to the start of construction. Included in that SWPPP will be Erosion and Sediment Control measures, Stormwater Pollution Prevention Control measures and all required measures as described within the environmental permits. Drainage Plan and Technical Information Report WSP USA, 30900024.000 Gene Coulon Memorial Beach Park Timber Trestle Replacement March 2022 City of Renton, Washington Page 6 of 6 11.2 SPECIAL REQUIREMENT #1 – AREA SPECIFIC REQUIREMENTS This Project consists of removal and replacement of a bridge that covers a small area and does not qualify for the requirements to develop a Master Drainage Plan. In review of the City of Renton adopted plans, there were no adopted plans for the area with regard to the Basin Plans and Lake Management Plans. Salmon Conservation Plans were not observed in this area, and this Project does not include a Shared Facility Drainage Plan. 11.3 SPECIAL REQUIREMENT #2 – FLOOD HAZARD DELINEATION In review of the site-specific hazard map (Figure 2), there is no flood hazard identified in this area. The area of the Project is north of the Cedar River and south of May Creek. Water elevations for Lake Washington are controlled through the Hiram M. Chittenden Locks. 11.4 SPECIAL REQUIREMENT #3 – FLOOD PROTECTION FACILITIES Location of the Project is not in a flood hazard zone and does not require the use of flood protection facilities. 11.5 SPECIAL REQUIREMENT #4 – SOURCE CONTROL Use of the trail and bridge for this Project will be pedestrian foot access, and occasional vehicular traffic by City of Renton parks maintenance staff and emergency access. There are no current or future plans for storage of material or parking of vehicles long term in the areas of the Project. Surface runoff from paved surfaces will be dispersed through sheet flow to each side of the trail and infiltrate through vegetated surfaces on the eastern side of the trail, or through the gravel shoulder and shore armoring into Lake Washington on the western side of the trail. 11.6 SPECIAL REQUIREMENT #6 – AQUIFER PROTECTION Per the City of Renton COR Maps this project lies within wellfield Well 5A and is in a zone 2 aquifer protection area. This project does not have components such as an open facilities or open conveyance systems which are outlined for zone 2 Aquafer Protection Areas. APPENDIX A TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 2017 City of Renton Surface Water Design Manual 12/12/2016 CITY OF RENTON SURFACE WATER DESIGN MANUAL REFERENCE 8-A TECHNICAL INFORMATION REPORT (TIR) WORKSHEET REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEETS 12/12/2016 2017 City of Renton Surface Water Design Manual (This page intentionally left blank.) CITY OF RENTON SURFACE WATER DESIGN MANUAL 2017 City of Renton Surface Water Design Manual 12/12/2016 8-A-1 REFERENCE 8-A TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 1 PROJECT OWNER AND PROJECT ENGINEER Part 2 PROJECT LOCATION AND DESCRIPTION Project Owner _____________________________ Phone ___________________________________ Address __________________________________ _________________________________________ Project Engineer ___________________________ Company _________________________________ Phone ___________________________________ Project Name __________________________ CED Permit # ________________________ Location Township ________________ Range __________________ Section _________________ Site Address __________________________ _____________________________________ Part 3 TYPE OF PERMIT APPLICATION Part 4 OTHER REVIEWS AND PERMITS Land Use (e.g., Subdivision / Short Subd.) Building (e.g., M/F / Commercial / SFR) Grading Right-of-Way Use Other _______________________ DFW HPA COE 404 DOE Dam Safety FEMA Floodplain COE Wetlands Other ________ Shoreline Management Structural Rockery/Vault/_____ ESA Section 7 Part 5 PLAN AND REPORT INFORMATION Technical Information Report Site Improvement Plan (Engr. Plans) Type of Drainage Review (check one): Date (include revision dates): Date of Final: Full Targeted Simplified Large Project Directed ____________________________________ __________________ Plan Type (check one): Date (include revision dates): Date of Final: Full Modified Simplified ____________________________________ __________________ City of Renton Parks Planning & Natural Resources (206) 276-8833 1055 S Grady Way | 6th Floor | Renton, WA 98057 Garth Nelson, PE (206) 431-2388 WSP USA Gene Coulon Memorial Beach Park Trestle Bridge Replacement 23 05 05 1201 Lake Washington Blvd. N Renton, WA 98056 Civil Construction Permit REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 12/12/2016 2017 City of Renton Surface Water Design Manual 8-A-2 Part 6 SWDM ADJUSTMENT APPROVALS Type (circle one): Standard / Blanket Description: (include conditions in TIR Section 2) ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Approved Adjustment No. ______________________ Date of Approval: _______________________ Part 7 MONITORING REQUIREMENTS Monitoring Required: Yes / No Start Date: _______________________ Completion Date: _______________________ Describe: _________________________________ _________________________________________ _________________________________________ Re: SWDM Adjustment No. ________________ Part 8 SITE COMMUNITY AND DRAINAGE BASIN Community Plan: ____________________________________________________________________ Special District Overlays: ______________________________________________________________ Drainage Basin: _____________________________________________________________________ Stormwater Requirements: _____________________________________________________________ Part 9 ONSITE AND ADJACENT SENSITIVE AREAS River/Stream ________________________ Lake ______________________________ Wetlands ____________________________ Closed Depression ____________________ Floodplain ___________________________ Other _______________________________ _______________________________ Steep Slope __________________________ Erosion Hazard _______________________ Landslide Hazard ______________________ Coal Mine Hazard ______________________ Seismic Hazard _______________________ Habitat Protection ______________________ _____________________________________ Black River Basin and South Renton Sub Basin Lake Washington none none none REFERENCE 8-A: TECHNICAL INFORMATION REPORT (TIR) WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 2017 City of Renton Surface Water Design Manual 12/12/2016 Ref 8-A-3 Part 10 SOILS Soil Type ______________________ ______________________ ______________________ ______________________ Slopes ________________________ ________________________ ________________________ ________________________ Erosion Potential _________________________ _________________________ _________________________ _________________________ High Groundwater Table (within 5 feet) Other ________________________________ Sole Source Aquifer Seeps/Springs Additional Sheets Attached Part 11 DRAINAGE DESIGN LIMITATIONS REFERENCE Core 2 – Offsite Analysis_________________ Sensitive/Critical Areas__________________ SEPA________________________________ LID Infeasibility________________________ Other________________________________ _____________________________________ LIMITATION / SITE CONSTRAINT _______________________________________ _______________________________________ _______________________________________ _______________________________________ _______________________________________ _______________________________________ Additional Sheets Attached Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Threshold Discharge Area: (name or description) Core Requirements (all 8 apply): Discharge at Natural Location Number of Natural Discharge Locations: Offsite Analysis Level: 1 / 2 / 3 dated:__________________ Flow Control (include facility summary sheet) Standard: _______________________________ or Exemption Number: ____________ On-site BMPs: _______________________________ Conveyance System Spill containment located at: _____________________________ Erosion and Sediment Control / Construction Stormwater Pollution Prevention CSWPP/CESCL/ESC Site Supervisor: _____________________ Contact Phone: _________________________ After Hours Phone: _________________________ Granular Fill yes minimal - shore protection see attached geotechnical report N/A N/A Preliminary TESC shown in plans, CSWPP to be obtained and maintained by the contractor REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 12/12/2016 2017 City of Renton Surface Water Design Manual 8-A-4 Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Maintenance and Operation Responsibility (circle one): Private / Public If Private, Maintenance Log Required: Yes / No Financial Guarantees and Liability Provided: Yes / No Water Quality (include facility summary sheet) Type (circle one): Basic / Sens. Lake / Enhanced Basic / Bog or Exemption No. _______________________ Special Requirements (as applicable): Area Specific Drainage Requirements Type: SDO / MDP / BP / Shared Fac. / None Name: ________________________ Floodplain/Floodway Delineation Type (circle one): Major / Minor / Exemption / None 100-year Base Flood Elevation (or range): _______________ Datum: Flood Protection Facilities Describe: Source Control (commercial / industrial land use) Describe land use: Describe any structural controls: Oil Control High-Use Site: Yes / No Treatment BMP: _________________________________ Maintenance Agreement: Yes / No with whom? _____________________________________ Other Drainage Structures Describe: Pedestrian walking & occasional maintenance vehicles none N/A N/A none REFERENCE 8-A: TECHNICAL INFORMATION REPORT (TIR) WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 2017 City of Renton Surface Water Design Manual 12/12/2016 Ref 8-A-5 Part 13 EROSION AND SEDIMENT CONTROL REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION Clearing Limits Cover Measures Perimeter Protection Traffic Area Stabilization Sediment Retention Surface Water Collection Dewatering Control Dust Control Flow Control Control Pollutants Protect Existing and Proposed BMPs/Facilities Maintain Protective BMPs / Manage Project MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION Stabilize exposed surfaces Remove and restore Temporary ESC Facilities Clean and remove all silt and debris, ensure operation of Permanent BMPs/Facilities, restore operation of BMPs/Facilities as necessary Flag limits of sensitive areas and open space preservation areas Other _______________________ Part 14 STORMWATER FACILITY DESCRIPTIONS (Note: Include Facility Summary and Sketch) Flow Control Type/Description Water Quality Type/Description Detention Infiltration Regional Facility Shared Facility On-site BMPs Other ________________ ________________ ________________ ________________ ________________ ________________ Vegetated Flowpath Wetpool Filtration Oil Control Spill Control On-site BMPs Other ________________ ________________ ________________ ________________ ________________ ________________ ________________ Part 15 EASEMENTS/TRACTS Part 16 STRUCTURAL ANALYSIS Drainage Easement Covenant Native Growth Protection Covenant Tract Other ____________________________ Cast in Place Vault Retaining Wall Rockery > 4′ High Structural on Steep Slope Other _______________________________ Tree Protection N/A N/A Bridge Abutments REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 12/12/2016 2017 City of Renton Surface Water Design Manual 8-A-6 Part 17 SIGNATURE OF PROFESSIONAL ENGINEER I, or a civil engineer under my supervision, have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attached Technical Information Report. To the best of my knowledge the information provided here is accurate. ____________________________________________________________________________________ Signed/Date PE, 17 March 2021 APPENDIX B WETLANDS AND WATERBODIES DELINEATION AND ASSESSMENT REPORT Gene Coulon Memorial Beach Park Trestle Bridge Replacement Wetlands and Waterbodies Delineation and Assessment Report Submitted to City of Renton Renton, Washington September 2020 Submitted by WSP USA 33301 Ninth Street South, Suite 300 Federal Way, Washington 30900024 Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page iii of iii GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT WETLANDS AND WATERBODIES DELINEATION AND ASSESSMENT KING COUNTY, WASHINGTON TABLE OF CONTENTS SECTION PAGE 1.0 INTRODUCTION ............................................................................................................ 1 2.0 METHODS ..................................................................................................................... 1 2.1 Wetland Delineation .......................................................................................... 1 2.2 Ordinary High Water Mark Determination ....................................................... 3 3.0 SITE CHARACTERISTICS ............................................................................................ 3 3.1 Precipitation and Hydrology ............................................................................ 4 3.2 Mapped Soils ..................................................................................................... 5 3.3 Mapped Wetlands ............................................................................................. 5 3.4 Vegetation ......................................................................................................... 6 4.0 WETLAND DESCRIPTIONS .......................................................................................... 7 4.1 Wetland A .......................................................................................................... 7 4.2 Wetland B .......................................................................................................... 8 5.0 ORDINARY HIGH WATER MARK DESCRIPTION ........................................................ 8 6.0 REGULATORY REVIEW ............................................................................................... 8 6.1 Wetlands ............................................................................................................ 8 6.2 Waterbodies ...................................................................................................... 9 6.3 State and Federal Regulations ........................................................................10 7.0 CONCLUSIONS ............................................................................................................10 8.0 REFERENCES ..............................................................................................................10 9.0 LIST OF ACRONYMS AND ABBREVIATIONS ............................................................12 LIST OF TABLES Table 1. Precipitation Data for 14 Days Prior to June 5, 2020 Site Visit ............................... 4 Table 2. Identified Wetlands .................................................................................................... 7 Table 3. Summary of Wetland Classification, Rating, and Buffer Width .............................. 9 Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page iii of iii LIST OF FIGURES Figure 1. Vicinity Map Figure 2. Tax Lots Figure 3. NRCS Soils Figure 4. Topography Figure 5. NWI Wetlands Figure 6. Delineation Figure 7. Photo Sheet Figure 8. Photo Sheet LIST OF APPENDICES Appendix A. Figures Appendix B. Data Sheets Appendix C. Wetland Rating Forms Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 1.0 INTRODUCTION The City of Renton (City) Parks Planning and Natural Resources Division proposes maintenance repairs of an existing pedestrian bridge over Lake Washington within Gene Coulon Memorial Beach Park (Park) in Renton, Washington. As part of this investigation, the City must determine the limits of wetlands and waterbodies within the study area. Therefore, the City contracted with WSP USA to determine the existence of jurisdictional wetlands and waterbodies as defined and regulated by the U.S. Army Corps of Engineers (USACE), the Washington State Department of Ecology (Ecology), the Washington Department of Fish and Wildlife (WDFW), and the City. The study area is located within King County. The property is developed with the Gene Coulon Memorial Beach Park that spans 51.3 acres of land and water. The study area within the property is located in the northeast portion of the Park and consists of a pile- supported timber trestle bridge that provides public access to the north portion of the park. The study area is within tax parcel 052305-9010. (Figure 1 is a vicinity map, and Figure 2 shows the tax lots associated with the project; all of the figures are included as Appendix A.) Brandon Stimac and Grace Roberts, WSP environmental scientists, used the routine on- site wetland delineation method described below for the delineation and assessment. Two wetlands were identified within the study area, both north and south of the current bridge, and the ordinary high water mark (OHWM) of Lake Washington. 2.0 METHODS 2.1 WETLAND DELINEATION Guidance for determining wetland boundaries came from the 2010 Regional Supplement to the USACE Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0) (the regional supplement) (USACE 2010). According to the supplement, wetlands are defined as … areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. The regional supplement uses three parameters in making wetland determinations: hydrophytic vegetation, hydric soils, and wetland hydrology. Hydrophytic vegetation consists of plants that, because of morphological, physiological, and/or reproductive adaptations, have the ability to grow, effectively compete, reproduce, and/or persist in anaerobic soil conditions. Hydric soils are soils that are saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions. Wetland hydrology is present when an area is inundated or the water table is within 12 inches of the surface for at least 14 consecutive days of the growing season at a Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 minimum frequency of 5 years in 10. The growing season is defined as the portion of the year when soil temperature at 12 inches below the soil surface is greater than biologic zero (5 degrees C). Except in atypical situations, as defined in the regional supplement, evidence of a minimum of one positive wetland indicator from each of the three parameters (hydrology, vegetation, and soil) must be found in order to make a positive wetland determination. In addition to the regional supplement, the scientists used the following information to develop a preliminary indication of where potential wetlands and waterbodies might exist and aid on-site data collection. King County GIS Database iMap Hydric Soils List (U.S. Department of Agriculture [USDA] Natural Resources Conservation Service [NRCS]) State Soil Data Access (SDA) Hydric Soils List (USDA-NRCS 2020a) National List of Plant Species that Occur in Wetlands: Northwest Region 9 (Reed 1988) National Wetland Plant List (Lichvar et al. 2016) Preliminary Monthly Climate Data: Seattle-Tacoma (National Weather Service, National Oceanic and Atmospheric Administration [NOAA]) Supplement to List of Plant Species that Occur in Wetlands: Northwest Region 9 (Reed 1993) U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) Online Mapper (USFWS 2020) Washington State Wetland Rating System for Western Washington—Revised (Hruby 2014) (2014 rating system) Web Soil Survey (USDA-NRCS 2020b) Wetlands Delineation Manual, Technical Report Y-87-1 (USACE 1987) On June 5, 2020, the two WSP wetland scientists conducted a field investigation in the study area to determine if wetlands were present. The scientists used the methodology discussed in the regional supplement, as well as technical guidance and documentation issued by the USACE and Ecology, to observe any visible wetland conditions. In this case, the scientists used the routine on-site wetland delineation method. They walked the entire site looking for visible indicators of wetland conditions. Once they had identified the general location of a wetland area, the scientists took paired data points in areas that represented the conditions of the uplands and wetlands. In general, each plot was chosen in a uniform topographic position that was representative of a single plant community. Paired points were generally located approximately 5 to 10 feet apart to minimize the margin of error. The scientists inspected the soils at each data point to a depth of 16 inches (or more, depending on conditions) to determine the presence or absence of hydric soil characteristics and/or wetland hydrology. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 During the site visit, the scientists identified two wetlands within the study area. The on-site wetlands were classified according to the USFWS classification system (Cowardin et al. 1979) and the hydrogeomorphic (HGM) classification system (Adamus 2001) based on observations made in the field. In addition, the scientists recorded hydrologic conditions, soils, and vegetation at eight data points; they used a GPS unit to record the data point locations and wetland boundaries and excavated a soil pit in each data point. The wetlands in the study area are discussed in greater detail in section 4.0. 2.2 ORDINARY HIGH WATER MARK DETERMINATION Guidance for the OHWM determination came from Determining the Ordinary High Water Mark for Shoreline Management Act Compliance in Washington State (Ecology 2016). The OHWM is defined as follows. … that mark…found by examining the bed and banks of a body of water and ascertaining where the presence and action of waters are so common and usual, and so long continued in all ordinary years, as to mark upon the soil a character distinct from that of the abutting upland, in respect to vegetation as that condition exists on June 1, 1971, as it may naturally change thereafter, or as it may change thereafter in accordance with permits issued by a local government or Washington Department of Ecology (Ecology); Provided that in any area where the OHWM cannot be found, ….. the OHWM adjoining fresh water shall be the line of mean higher water.1 During the June 2020 site visit, the WSP scientists marked the OHWM of an inlet of Lake Washington that extends under the existing trestle bridge within the study area. The scientists used a combination of field indicators (e.g., vegetation distribution, sediment lines on vegetation or other fixed objects, scour lines, etc.) to determine the OHWM and marked it in the field with blue flagging. 3.0 SITE CHARACTERISTICS The property is developed with the Gene Coulon Memorial Beach Park that spans 51.3 acres of land and water. The study area within the property is located in the northeast portion of the Park and consists of a pile-supported timber trestle bridge that provides public access to the north portion of the park. The project parcel is developed consistently with park features, including a pedestrian trail, riprap slope, and lawn area. The project’s timber trestle bridge and dinghy moorage are located near the southern portion of the project parcel (Figures 1 and 2). Topographically, the north and south sides of the study area slope down to the trestle bridge and toward Lake Washington (Figure 4). The majority of the study area contains gentle rolling topography with some steep slopes. Most of the study area consists of undeveloped forest area, and the current trestle bridge. Vegetation species noted throughout the study area include black huckleberry (Vaccinium 1 Revised Code of Washington (RCW) 90.58.030(2)(b) and Washington Administrative Code (WAC) 173-22- 030(6) Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 membranaceum), Himalayan blackberry (Rubus armeniacus), creeping buttercup (Ranunculus repens), Pacific dogwood (Cornus nuttallii), Alaskan yellow cedar (Callitropsis nootkantensis), big-leaf maple (Acer macrophyllum), trailing blackberry (Rubus ursinus), Oregon wintergreen (Gaultheria shallon), reed canarygrass (Phalaris arundinacea), rushes (Juncaceae spp.), Douglas spirea (Spiraea douglasii), cattails (Typhaceae spp.), western skunk cabbage (Lysichiton americanus), yellow iris (Iris pseudacorus), lady fern (Athyrium felix-femina), western common horsetail (Equisetum arvense), red alder (Alnus rubra), black cottonwood (Populus balsamifera), western red cedar (Thuja plicata), western larch (Larix occidentalis), and Scouler’s willow (Salix scouleriana), among other plant species. Lake Washington extends under the existing trestle bridge to form a small inlet. Steep slopes are present to the east of the inlet, and down to it. 3.1 PRECIPITATION AND HYDROLOGY The typical growing season for King County (Seattle-Tacoma Station) is 257 days, starting on March 19 and ending on December 1. According to the USACE wetland delineation manual, flooding, ponding, or saturation in the upper 12 inches of the soil profile for a period of at least 14 consecutive days during the growing season is indicative of wetland hydrology. Table 1 displays precipitation data for the 14 days prior to and including the site visit on June 5, 2020. The information comes from the National Weather Service station in Seattle, Washington (Seattle Weather Forecast Office), approximately 12.48 miles north of the study area. Table 1. Precipitation Data for 14 Days Prior to June 5, 2020 Site Visit Date Rain (inches) Date Rain (inches) May 22 0.00 May 30 0.18 May 23 0.00 May 31 0.00 May 24 0.11 June 1 Trace May 25 Trace June 2 0.00 May 26 0.00 June 3 0.00 May 27 0.00 June 4 0.00 May 28 0.00 June 5 0.01 May 29 1.14 Total: 1.44 Source: NOAA 2020 In addition to the daily rainfall total for the 14 days prior to the June 2020 site visit, the WSP wetland scientists reviewed historic precipitation data available on the NOAA website (NOAA 2020). That data shows the following. For the two weeks preceding and through the site visit on June 5, 2020, a total of 1.44 inches of precipitation was observed. During the entire month of June 2020 through the June 5, 2020 site visit, 0.01 inch of precipitation was observed, 0.37 inch below the historical normal of 0.38 inch. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 As of June 5, 2020, the observed precipitation for the year 2020 was 21.28 inches, 3.46 inches above the historical normal of 17.82 inches. The site conditions were slightly drier than the historical normal at the time of the site visit but were considered appropriate for the wetland delineation. During the site investigation, the scientists documented the presence or absence of field indicators for wetland hydrology in each of the eight soil pits excavated in the data points. The data recorded included the depth of inundation, depth to water table, and/or soil saturation, when found, as well as primary and secondary indicators of wetland hydrology, including redoximorphic features along living roots, high water table, and saturation. Hydrologic inputs for the study area likely come from direct precipitation, overland flow from adjacent uplands, and a seasonally high water table. During the site visit, the presence of surface water and a high water table were the primary hydrology indicators. This is typical of depressional wetlands in the Pacific Northwest that experience high amounts of precipitation in the late fall, winter, and spring seasons. 3.2 MAPPED SOILS Review of the USDA-NRCS Web Soil Survey identifies the following soil mapping unit within the study area (Figure 3). The descriptions are excerpted from the King County Area soil survey (Snyder 1973). Urban land (Ur) – Urban land is soil that has been modified by disturbance of the natural layers with additions of fill material several feet thick to accommodate large industrial housing installations. The erosion hazard is slight to moderate. No capability or woodland classification. According to the state Soil Data Access (SDA) Hydric Soil List (USDA-NRCS 2020a), this soil is not listed as hydric in King County Area. The locations of the soil type within the study area was obtained from the USDA-NRCS Web Soil Survey (USDA-NRCS 2020b), and the hydric classification came from the SDA list of hydric soils (USDA-NRCS 2020a). The WSP scientists examined each soil pit for hydric soil indicators and recorded its soil profile and characteristics (matrix color, redoximorphic features, texture, and other features). Observations of soil conditions during the site visit were generally consistent with the map units described and identified in the USDA-NRCS soil survey. 3.3 MAPPED WETLANDS Review of the NWI online mapper identifies Lake Washington, but does not indicate and wetland habitats mapped within the study area (Figure 5). Similarly, King County’s iMap does not show the presence of any wetlands within the study area. During the site visit, no wetland characteristics were identified outside of what was delineated in the field. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 3.4 VEGETATION Hydrophytic vegetation consists of plant species that have adapted to growing in periodically inundated or saturated substrates. Five basic groups of vegetation are recognized based on how frequently they occur in wetlands (Reed 1988 and 1993 and USACE 2016).2 From the wettest to the driest plant communities, the categories are obligate wetland (OBL), facultative wetland (FACW), facultative (FAC), facultative upland (FACU), and obligate upland (UPL) plants. Hydrophytic vegetation is present when more than 50 percent of the dominant species has an indicator status of OBL, FACW, and/or FAC. The WSP wetland scientists documented the visual percent cover of the dominant plant community species for key sample sites. Using the eight data points as centers of reference, the scientists investigated sample plots of varying proportions for dominant species of trees, shrubs, herbs, and woody vines. The composition and orientation of the plant communities within each sample plot determined its size and shape. Each plot was set up so that its boundaries included a representative cross section of the plant community within it. Estimating the percent of aerial cover of each species within each stratum determined the dominance of plant species. The scientists listed species from each stratum in descending order of percent cover and used the USACE’s 50-20 technique to determine the predominance of hydrophytic vegetation. Using this method, when the most abundant plant species are ranked in descending order of abundance and totaled, any species individually or together that account for more than 50 percent of the total cover, plus any additional individual species comprising 20 percent or more of the total cover, represent the dominant species. If more than 50 percent of the dominant species included by these criteria are FAC or wetter, the vegetation community is considered hydrophytic. A prevalence index is used as another method of evaluating the presence or absence of hydrophytic vegetation based on the relative dominance of species within each indicator status. Using the prevalence index, vegetation percentages within each designation (OBL, FACW, FAC, FACU, and UPL) are added together and are given a different multiplier. Once calculated, the total in the multiplied column is divided by the original percentage total before multiplying. If the number given is less than or equal to 3.0, the vegetation community is considered hydrophytic. If the number is greater than 3.0, the vegetation community is not considered hydrophytic. The vegetation within the wetland areas includes Pacific dogwood (Cornus nuttallii, FAC), Alaskan yellow cedar (Callitropsis nootkantensis, FACU), bigleaf maple (Acer macrophyllum, FACU), trailing blackberry (Rubus ursinus, FACU), Oregon wintergreen (Gaultheria shallon, FACU), western skunk cabbage (Lysichiton americanus, OBL), yellow iris (Iris pseudacorus, OBL), lady fern (Athyrium cyclosorum, FAC), western common horsetail (Equisetum arvense, FAC), red alder (Alnus rubra, FAC), black cottonwood (Populus balsamifera, FAC), western red cedar (Thuja plicata, FAC), 2 Plant nomenclature in this report follows Reed (1988 and 1993) and the USACE 2016 National Wetland Plant List. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 western larch (Larix occidentalis, FACU), and Scouler’s willow (Salix scouleriana, FAC), among other plant species. 4.0 WETLAND DESCRIPTIONS WSP’s investigation of hydrology, soils, and vegetation identified two wetland features within the study area (Wetlands A and B). Appendix B contains eight wetland determination forms that show the data collected during the site visit. The numbers assigned to the data sheets correspond to the data points, which were numbered sequentially DP1 to DP8. The wetlands were rated using the revised wetland rating form that Ecology developed in 2014 (Appendix C). Both Wetland A and Wetland B received a Category IV rating with a score of 14 points. Figure 6 is an overview of the locations of the delineated wetlands within the study area, overlaid on an aerial image of the study area. Figures 7 and 8 consists of site photos taken during the field investigation. Table 2 summarizes the two identified wetlands, and Figure 6 shows their locations. Table 2. Identified Wetlands Wetland Wetland Classification Area of Wetland Within Study Area (acres) Cowardina HGMb Wetland Ratingc Wetland A PFO Depressional IV 0.13 Wetland B PFO Depressional IV 0.02 Source: Wetland Rating System for Western WA 2014 Notes: a Cowardin et al. (1979) or NWI class based on vegetation: PEM = palustrine emergent, PFO = freshwater forested, shrub wetland. b HGM classification according to Hruby (2014). c Wetland rating according to Hruby (2014). 4.1 WETLAND A Wetland A (0.13 acre) is in the northern area of the study area, north of the Lake Washington inlet that extends under the existing trestle bridge. This wetland is located in the southern portion of tax parcel 052305-9010. The wetland is entirely within the study area. This forested wetland includes plant species such as red alder, Scouler’s willow, Pacific dogwood, yellow iris, trailing blackberry, big-leaf maple, and common horsetail. Hydrology is supported by overland flow from adjacent uplands and roads, direct precipitation, and a seasonally high water table. Indicators of hydrology within Wetland A include surface water (A1), high water table (A2), and saturation (A3). Soils within Wetland A consist entirely of a very dark grayish brown (10YR 3/2) muck to a depth of 14 inches. This soil profile meets the criteria for the 2 cm Muck (A10) problematic hydric soil indicator. These soils meet the definition of a hydric soil but do not exhibit any hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. Wetland A was rated under the slope HGM classification and received a Category IV rating with a score of 14. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 4.2 WETLAND B Wetland B (0.02 acre) is in the southern area of the study area, south of the Lake Washington inlet that extends under the existing trestle bridge. This wetland is located in the southern portion of tax parcel 052305-9010. The wetland is entirely within the study area. This emergent, scrub-shrub, forested wetland includes plant species such as red alder, black cottonwood, Scouler’s willow, common horsetail, yellow iris, Pacific dogwood, western red cedar, and Oregon wintergreen. Hydrology is supported by overland flow from adjacent uplands and roads, direct precipitation, and a seasonally high water table. Indicators of hydrology within Wetland B include surface water (A1), high water table (A2), and saturation (A3). Soils within Wetland B consist entirely of a very dark grayish brown (10YR 3/2) muck to a depth of 14 inches. This soil profile meets the criteria for the 2 cm Muck (A10) problematic hydric soil indicator. These soils meet the definition of a hydric soil but do not exhibit any hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. Wetland B was rated under the slope HGM classification and received a Category IV rating with a score of 14. 5.0 ORDINARY HIGH WATER MARK DESCRIPTION The WSP scientists used a combination of field indicators to determine the OHWM of a portion of the eastern shore of Lake Washington, which extends under the existing trestle bridge as a small inlet. The OHWM was delineated in the field to the north and south of the bridge. The OHWM of Lake Washington within the study area was determined on June 5, 2020 by observing sediment bars, scour line, bank erosion/channel scour, top of bank, relic floodplain surface, overbank deposits, and/or drainage patterns as shown by flattened vegetation. Reed canarygrass, Scouler’s willow, and cattails are located along the OHWM. Figure 6 shows the location of the GPS-recorded OHWM. 6.0 REGULATORY REVIEW This section is an overview of regulatory requirements as they pertain to wetlands, streams, and habitat conservation areas identified within the study area that are located within the jurisdiction of King County. The project will be subject to Renton Municipal Code (RMC) Chapter 4-3-050, Critical Areas Regulations. 6.1 WETLANDS RMC 4-3-050 establishes protection for wetlands within the City of Renton, including the establishment of protective buffers associated with wetlands, and requires that proponents obtain certain permits or approvals for projects containing wetlands and/or their buffers. The ordinance requires the use of Ecology’s revised wetland rating system to determine a wetland’s category and its score for habitat, water quality, and hydrologic functions. Per guidance found in the 2014 rating system, Wetland A received a Category IV rating and Wetland B received a Category IV. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 RMC 4-3-050G establishes the required buffer width for a wetland, and the width is determined by comparing the wetland rating category and the intensity of land uses proposed on a development site. Table 4-3-050G2, Critical Area Buffers and Structure Setbacks from Buffers, identifies unpaved trails, low-intensity open space (hiking, bird- watching, preservation of natural resources, etc.) and utility corridors without a maintenance road and little or no vegetation management as low intensity land uses; all other land uses are identified as high-intensity land uses. RMC Table 4-3-050G2 establishes buffer requirements to protect habitat functions in wetlands based on the habitat scores the wetlands receive and the land use intensity proposed within the development area. Both Wetland A and Wetland B received a Category IV rating and a score of 3 for habitat functions. At both wetland locations, the bridge maintenance and repairs would be considered a high-intensity land use. Based on RMC Table 4-3-050G2, Wetland A and Wetland B require a 50-foot buffer, as shown in Table 5, which shows the classification, rating, habitat score, and buffer width. Table 3. Summary of Wetland Classification, Rating, and Buffer Width Wetland HGM Wetland Rating Habitat Score Buffer Width Wetland A Depressional IV 3 50 Wetland B Depressional IV 3 50 Source: Wetland Rating System for Western Washington, 2014 6.2 WATERBODIES The study area is located within the City’s jurisdiction and therefore, is subject to the City’s shoreline master program regulations (RMC 4-3-090), which provides protective measures with the goal of no net loss of ecological functions and processes in all development and use. According to RMC 4-3-090B, the Renton Shoreline Master Program applies to shorelines of the state, which include shorelines of statewide significance. Lake Washington is identified as a shoreline of statewide significance in RMC 4-3-090B1. Waters of the state include lakes, rivers, ponds, streams, inland waters, underground waters, salt waters, and all other surface waters and watercourses within the jurisdiction of the state of Washington, as classified in WAC 222-16-031 or its successor. The Washington State Department of Natural Resources (WDNR) indicates that Lake Washington is Type S (shoreline of the state, as defined in Revised Code of Washington 90.58.030) (WDNR 2020). According to RMC 4-3-090B, the stream buffer extends outward on the horizontal plane from the OHWM. Based on RMC 4-3-050G, a 115-foot stream buffer is designated for Lake Washington, because it is a WDNR Type S water, and shoreline of statewide significance. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 6.3 STATE AND FEDERAL REGULATIONS In addition to County ordinances, the USACE and Ecology regulate jurisdictional wetlands and streams at the federal and state levels under Sections 404 and 401 of the Clean Water Act, respectively. On-site wetlands and waterbodies are considered jurisdictional waters based on U.S. Environmental Protection Agency/USACE guidance. Any direct impacts to the wetlands and waterbodies will require notifying the USACE, Ecology, and the WDFW to obtain the appropriate approvals. 7.0 CONCLUSIONS Activities within the identified wetlands and waterbodies are subject to regulation by the City, the WDFW, Ecology, and the USACE. Any impacts within the regulated wetlands and waterbodies would require a critical areas permit under the Shoreline Master Program from the City, a Section 401 water quality certification through Ecology, and a Section 404 permit through the USACE. Additionally any impacts to regulated waters (i.e., streams) would require a Hydraulic Permit Approval from WDFW. Any mitigation that would be required to compensate for wetland impacts would be determined during the permitting process. It should be noted that the wetlands and waterbodies identified and classified in this report were determined using the most appropriate field techniques and best professional judgment of the scientists. The City, Ecology, the WDFW, and the USACE have the final authority in the determination of the boundaries, categories, and jurisdictional status of wetlands under their respective jurisdictions. Therefore, WSP recommends submitting this delineation and assessment report to these agencies for their concurrence before beginning any development or planning activities that would affect the wetlands and waterbodies within the study area. 8.0 REFERENCES Adamus, P.R. 2001. Guidebook for Hydrogeomorphic (HGM)-based Assessment of Oregon Wetland and Riparian Sites: Statewide Classification and Profiles. Oregon Division of State Lands, Salem, OR. Accessed June 16, 2020 at: http://www.oregon.gov/dsl/WW/Documents/hydro_guide_class.pdf. King County. 2020. GIS Database iMap. Accessed June 15, 2020 at: https://www.kingcounty.gov/services/gis/Maps/imap.aspx. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service, Washington, DC. Hruby, Thomas. 2014. Washington State Wetland Rating System for Western Washington: 2014 Update (Publication #14-06-029). Olympia, WA: Washington State Department of Ecology. Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 Wetland Ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 Snyder, D.E., G.S. Gale, and R.F.Pringle. 1973. Soil Survey of King County Area, Washington. USDA Soil Conservation Service-National Cooperative Soil Survey. Washington, DC. National Oceanic and Atmospheric Administration (NOAA). 2020. Preliminary Monthly Climate Data: Seattle-Tacoma. National Weather Service Forecast Office: Seattle, Washington. Accessed June 16, 2020 at: http://w2.weather.gov/climate/index.php?wfo=sew. Reed, P.B., Jr. 1993. Supplement to List of Plant Species that Occur in Wetlands: Northwest Region 9. U.S. Fish and Wildlife Service National Ecology Research Center. St. Petersburg, FL. Reed, P.B., Jr. 1988. National List of Plant Species that Occur in Wetlands: Northwest Region 9. Biological Report 88 (26.9). U.S. Fish and Wildlife Service National Ecology Research Center, St. Petersburg, FL. U.S. Army Corps of Engineers (USACE). 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, U.S. Army Corps of Engineers Waterways Experiment Station, Vicksburg, MS. U.S. Army Corps of Engineers (USACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. (Version 2.0). ERDC/EL TR-10-03. Vicksburg, MS. Revised October 2016. U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). 2020a. State Soil Data Access (SDA) Hydric Soils List – Washington. Accessed June 16, 2020 at: https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcseprd1316619.html#top. U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). 2020b. Web Soil Survey. Accessed June 16, 2020 at: https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. U.S. Fish and Wildlife Service (USFWS). 2020. National Wetlands Inventory (NWI) Wetlands Mapper. Accessed February 16, 2020 at: https://www.fws.gov/wetlands/Data/Mapper.html. Gene Coulon Memorial Beach Park Trestle Bridge Replacement WSP USA, 30900024.000 Wetland Delineation and Assessment September 2020 King County, Washington Page 3 of 12 9.0 LIST OF ACRONYMS AND ABBREVIATIONS RMC Renton Municipal Code City, the Renton (agency) DNR Washington State Department of Natural Resources Ecology Washington State Department of Ecology FAC facultative wetland FACU facultative upland wetland FACW facultative wetland HGM hydrogeomorphic NOAA National Oceanic and Atmospheric Administration NRCS Natural Resources Conservation Service NWI National Wetlands Inventory OBL obligate wetland RCW Revised Code of Washington SDA Soil Data Access UPL obligate upland wetland USACE U.S. Army Corps of Engineers USDA U.S. Department of Agriculture USFWS U.S. Fish and Wildlife Service WAC Washington Administrative Code WDFW Washington Department of Fish and Wildlife APPENDIX A FIGURES Figure 1: Vicinity Map Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 1 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I00.25 0.5 0.75 10.125 Miles La k e W a s h i n g t o n B l v d §¨¦405 Figure 2: Taxlots Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 2 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I 0 440 880 1,320 1,760220 Feet Legend Work Area Subject Parcel Renton Parcels La k e W a s h i n g t o n B l v d §¨¦405 Figure 3: NRCS Soils Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 3 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I 0 440 880 1,320 1,760220 Feet Legend Work Area Subject Parcel NRCS Map Unit Name Alderwood and Kitsap soils, very steep Alderwood gravelly sandy loam, 15 to 30 percent slopes Alderwood gravelly sandy loam, 8 to 15 percent slopes Arents, Alderwood material, 0 to 6 percent slopes Indianola loamy sand, 0 to 5 percent slopes Indianola loamy sand, 5 to 15 percent slopes Puyallup fine sandy loam Shalcar muck Urban land 57434 037 7 06564467466624 5 6759 4 4474 2 6 8 63695 8 27 26 25 24 221 9 2 8 232921 3 7 3 53018 80 79 78 76 21206 1 60555 4 3 6 33323 1 7739 381934 23232322178079 78 767573 7 2 676 7565 2 5 1 4 9 36 3 6 37 3 5 35242322 17171 7 1717 1717 1 7 17 1 7 171717 171717 1717 1717 1717 17 17 17 17 17 17 17 171717 17 17 17 Figure 4: Topography Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 4 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I 0 40 80 120 16020 Feet Legend Work Area Contours La k e W a s h i n g t o n B l v d §¨¦405 L1UBHh R5UBH PUBH Figure 5: NWI Wetlands Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 5 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I 0 440 880 1,320 1,760220 Feet Legend Work Area Subject ParcelNWI Wetland Type Lake ^_ ^_ !( !(!( !( !( !(!(SP-7 SP-5 SP-6 SP-8 SP-3 SP-4 SP-2 Wash ing ton B lvd N L a k e W a s h i n g t o n Figure 6: Delineation Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 6 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I 0 25 50 75 10012.5 Feet Legend !(Upland Sample Point !(Wetland Sample Point ^_Outlet OHWM Wetlands Wetland ACategory IV DepressionalPEM/PSS/PFO Wetland BCategory IV DepressionalPEM/PSS/PFO Figure 7: Photosheet Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 7 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement Photo 1: Wetland A, typical vegetation of yellow irisand skunk cabbage.Photo 2: Wetland A, view is to the south. Photo 3: Wetland A Photo 4: Wetland A, typical vegetation of yellow iris and horsetail Photo 5: Sample Plot 2 at Wetland A Photo 6: Drainage from the north into Wetland A Figure 8: Photosheet Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 8 of 8 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement Photo 7: Wetland B, view is to the north Photo 8: Wetland A drainage Photo 9: Wetland A drainage Photo 10: Wetland B, typical vegetation Photo 12: Wetland B, typical vegetation APPENDIX B DATA SHEETS US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Beach Memorial Park Renton 6/5/2020 City of Renton Parks Washington DP-1 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac and Grace Roberts S5 T23N R5E Hillslope Convex 5 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:4Cornus nuttallii Total Number of Dominant Species Across All Strata:8Callitropsis nootkatensis 30 Y 46.2 FAC 15 Y 23.1 FACU Populus balsamifera 20 Y 30.8 FAC 50.0%65 15ft x 15ft 1.Alnus rubra 5 Y 25.0 FAC Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Cornus nuttallii 15 Y 75.0 FACU Total % Cover of:Multiply by: 0 0 20 47 188 5ft x 5ft 0 0 0 75 225 0 Prevalence Index = B/A =3.385 413 2.Ilex aquifolium 1 N 3.1 FACU Ranunculus repens 5 N 15.6 FAC 122 3.Equisetum arvense 15 Y Rubus ursinus 1 N 3.1 FACU Taraxacum officinale 10 Y 31.3 FACU 46.9 FAC Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 32 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hedera helix 5 Y 100.0 FACU Hydrophytic Vegetation Present?5 = Total Cover % Bare Ground in Herb Stratum 70 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-1 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Sandy Loam 4-12 10YR 6/2 100 0-4 10YR 2/1 100 Sandy Loam ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. 4 Gravel 12 HYDROLOGY 6 Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Memorial Beach Park Renton 6/5/2020 City of Renton Parks WA DP-2 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E depression Concave 0 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:3Callitropsis nootkatensis Total Number of Dominant Species Across All Strata:7Cornus nuttallii 10 N 15.4 FACU 40 Y 61.5 FAC Acer macrophyllum 15 Y 23.1 FACU 42.9%65 15ft x 15ft 1.Rubus ursinus 10 Y 22.2 FACU Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Gaultheria shallon 20 Y 44.4 FACU Total % Cover of:Multiply by: Cornus nuttallii 15 Y 33.3 FACU 50 50 45 70 280 5ft x 5ft 0 0 0 60 180 0 Prevalence Index = B/A =2.833 510 2.Iris pseudacorus 30 Y 42.9 OBL Lysichiton americanus 20 Y 28.6 OBL 180 3.Athyrium cyclosorum 10 N Equisetum arvense 10 N 14.3 FAC 14.3 FAC Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 70 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 30 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-2 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Muck0-8 10YR 3/2 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Gravel 8 These soils meet the definition of hydric soil but do not exhibit ay hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. HYDROLOGY 0.5 Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Memorial Beach Park Renton 6/5/2020 City of Renton Parks WA DP-3 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E hillslope concave 5 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:4Larix occidentalis Total Number of Dominant Species Across All Strata:7Cornus nuttallii 10 Y 20.0 FACU 30 Y 60.0 FACU Alnus rubra 10 Y 20.0 FAC 57.1%50 15ft x 15ft 1.Gaultheria shallon 80 Y 80.0 FACU Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Alnus rubra 20 Y 20.0 FAC Total % Cover of:Multiply by: 0 0 100 120 480 5ft x 5ft 0 0 0 65 195 0 Prevalence Index = B/A =3.649 675 2.Athyrium cyclosorum 15 Y 42.9 FAC Equisetum arvense 20 Y 57.1 FAC 185 3. Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 35 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 65 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-3 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Sandy Loam0-6 10YR 4/3 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Rock 6 HYDROLOGY Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Memorial Beach Park Renton 6/5/2020 City of Renton Parks WA DP-4 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E depression Concave 0 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:4Callitropsis nootkatensis Total Number of Dominant Species Across All Strata:5 20 Y 40.0 FAC Alnus rubra 30 Y 60.0 FAC 80.0%50 15ft x 15ft 1.Salix scouleriana 40 Y 57.1 FAC Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Cornus nuttallii 30 Y 42.9 FACU Total % Cover of:Multiply by: 50 50 70 30 120 5ft x 5ft 0 0 0 100 300 0 Prevalence Index = B/A =2.611 470 2.Athyrium cyclosorum 10 N 16.7 FAC Iris pseudacorus 50 Y 83.3 OBL 180 3. Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 60 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 40 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-4 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Muck0-6 10YR 2/1 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Cobbly Gravel 6 These soils meet the definition of hydric soil but do not exhibit ay hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. HYDROLOGY 1 Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Beach Memorial Park Renton 6/5/2020 City of Renton Parks WA DP-5 SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E hillslope convex 5 VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:4Larix occidentalis Total Number of Dominant Species Across All Strata:6Alnus rubra 30 Y 33.3 FAC 20 Y 22.2 FACU Thuja plicata 20 Y 22.2 FAC 66.7%90 15ft x 15ft 1.Gaultheria shallon 50 Y 71.4 FACU Prevalence Index worksheet: Populus balsamifera 20 Y 22.2 FAC Percent of Dominant Species That Are OBL, FACW, or FAC: Salix scouleriana 10 N 14.3 FAC Total % Cover of:Multiply by: Salix lasiandra 10 N 14.3 FACW 0 0 70 70 280 5ft x 5ft 0 0 20 110 330 10 Prevalence Index = B/A =3.316 630 2. Equisetum arvense 30 Y 100.0 FAC 190 3. Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 30 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 70 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-5 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Sandy Loam0-6 10YR 4/4 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Cobbly Rock 6 HYDROLOGY Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Beach Memorial Park Renton 6/5/2020 City of Renton Parks WA DP-6 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E depression convex 0 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:7Larix occidentalis Total Number of Dominant Species Across All Strata:9Alnus rubra 30 Y 33.3 FAC 20 Y 22.2 FACU Thuja plicata 20 Y 22.2 FAC 77.8%90 15ft x 15ft 1.Salix lasiandra 30 Y 60.0 FACW Prevalence Index worksheet: Populus balsamifera 20 Y 22.2 FAC Percent of Dominant Species That Are OBL, FACW, or FAC: Salix scouleriana 10 Y 20.0 FAC Total % Cover of:Multiply by: Gaultheria shallon 10 Y 20.0 FACU 60 60 50 30 120 5ft x 5ft 0 0 60 100 300 30 Prevalence Index = B/A =2.455 540 2.Iris pseudacorus 60 Y 75.0 OBL Equisetum arvense 20 Y 25.0 FAC 220 3. Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 80 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 20 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-6 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks Muck0-6 10YR 2/1 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Rock 6 These soils meet the definition of hydric soil but do not exhibit ay hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. HYDROLOGY Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Memorial Beach Park Renton 6/5/2020 City of Renton Parks WA DP-7 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E hillslope convex 5 Hillslope NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:7Populus balsamifera Total Number of Dominant Species Across All Strata:10Salix lasiandra 15 Y 25.0 FACW 25 Y 41.7 FAC Thuja plicata 20 Y 33.3 FAC 70.0%60 15ft x 15ft 1.Larix occidentalis 10 Y 18.2 FACU Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Salix lasiandra 20 Y 36.4 FACW Total % Cover of:Multiply by: Salix scouleriana 10 Y 18.2 FAC 0 0 55 40 160 5ft x 5ft 0 0 70 Acer macrophyllum 5 N 9.1 FACU 80 240 Cornus nuttallii 10 Y 18.2 FACU 35 Prevalence Index = B/A =3.032 470 2.Geranium robertianum 5 N 12.5 FACU Ilex aquifolium 10 Y 25.0 FACU 155 3.Equisetum arvense 15 Y Ranunculus repens 10 Y 25.0 FAC 37.5 FAC Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 40 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 60 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-7 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks 0-6 10YR 4/4 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Rock 6 HYDROLOGY Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Project/Site:City/County:Sampling Date: Applicant/Owner:State:Sampling Point: Investigator(s):Section, Township, Range: Landform (hillslope, terrace, etc.):Local relief (concave, convex, none):Slope (%): Subregion (LRR):Lat:Long:Datum: Soil Map Unit Name:NWI Classification: Are climatic / hydrologic conditions on the site typical for this time of year?(If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed?Are "Normal Circumstances" present? Are Vegetation , Soil , or Hydrology naturally problematic?(If needed, explain any answers in Remarks.) Remarks: Dominance Test worksheet: Tree Stratum (Plot size:) 1. (A) 2. 3. (B) 4. = Total Cover (A/B) Sapling/Shrub Stratum (Plot size:) 2. 3.OBL species x 1 = 4.FACW species x 2 = 5.FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size:)UPL species x 5 = 1.Column Totals: (A) (B) 4.Hydrophytic Vegetation Indicators: 5.1 -Rapid Test for Hydrophytic Vegetation 6.2 -Dominance Test is >50% 7.3 -Prevalence Index is ≤3.0¹ 8.4 - 9. 10.5 -Wetland Non-Vascular Plants¹ 11.Problematic Hydrophytic Vegetation¹ (Explain) = Total Cover Woody Vine Stratum (Plot size:) 2. Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Gene Coulon Beach Memorial Park Renton 6/5/2020 City of Renton Parks WA DP-8 Urban Land upland SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present?Is the Sampled Area within a Wetland?Hydric Soil Present? Wetland Hydrology Present? Brandon Stimac; Grace Roberts S5 T23N R5E depression concave 0 A NAD83HARN VEGETATION – Use scientific names of plants. Absolute % Cover Dom. Sp.? Relative % Cover Indicator Status30ft x 30ft Number of Dominant Species That Are OBL, FACW, or FAC:6Populus balsamifera Total Number of Dominant Species Across All Strata:7Thuja plicata 15 Y 25.0 FAC 25 Y 41.7 FAC Salix lasiandra 20 Y 33.3 FACW 85.7%60 15ft x 15ft 1.Salix scouleriana 20 Y 44.4 FAC Prevalence Index worksheet: Percent of Dominant Species That Are OBL, FACW, or FAC: Cornus nuttallii 10 Y 22.2 FACU Total % Cover of:Multiply by: Salix lasiandra 15 Y 33.3 FACW 5 5 45 10 40 5ft x 5ft 0 0 70 140 420 35 Prevalence Index = B/A =2.816 535 2.Iris pseudacorus 5 N 5.9 OBL Equisetum arvense 70 Y 82.4 FAC 190 3.Ranunculus repens 10 N 11.8 FAC Morphological Adaptations¹ (Provide supporting data in Remarks or on a separate sheet) 85 ¹Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.15ft x 15ft Hydrophytic Vegetation Present?= Total Cover % Bare Ground in Herb Stratum 15 1. Yes No Yes No Yes No Yes No Yes No Yes No Yes No US Army Corps of Engineers (WSDOT Adapted Form)Western Mountains, Valleys, and Coast – Version 2.0 Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) ¹Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.²Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)Indicators for Problematic Hydric Soils³: Restrictive Layer (if present): Type: Depth (inches):Hydric Soil Present? Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) MLRA 1, 2, 4A, and 4B) 4A, and 4B) Field Observations: Surface Water Present?Depth (inches): Water Table Present?Depth (inches): Saturation Present?Depth (inches):Wetland Hydrology Present?(includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: SOIL DP-8 Depth (inches) Matrix Redox Features Color (moist)%Color (moist)%Type¹Loc²Texture Remarks 0-8 10YR 2/1 100 ³Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Rocks 8 These soils meet the definition of hydric soil but do not exhibit ay hydric soil indicators. Hydrophytic vegetation and wetland hydrology is present on site, and the wetland is located on a concave surface near Lake Washington. HYDROLOGY 1 Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Depleted Below Dark Surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (S5) Stripped Matrix (S6) Loamy Mucky Mineral (F1) (except MLRA 1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) 2 cm Muck (A10) Red Parent Material (TF2) Very Shallow Dark Surface (TF12) Other (Explain in Remarks) Surface Water (A1) High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) Drift Deposits (B3) Algal Mat or Crust (B4) Iron Deposits (B5) Surface Soil Cracks (B6) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Water-Stained Leaves (B9) (except Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tilled Soils (C6) Stunted or Stressed Plants (D1) (LRR A) Other (Explain in Remarks) Water-Stained Leaves (B9) (MLRA 1, 2, Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) Frost-Heave Hummocks (D7) Yes No Yes No Yes No Yes No Yes No APPENDIX C WETLAND RATING FORMS Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 1 Rating Form – Effective January 1, 2015 Score for each function based on three ratings (order of ratings is not important) 9 = H,H,H 8 = H,H,M 7 = H,H,L 7 = H,M,M 6 = H,M,L 6 = M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L RATING SUMMARY – Western Washington Name of wetland (or ID #): _________________________________ Date of site visit: _____ Rated by____________________________ Trained by Ecology?__ Yes ___No Date of training______ HGM Class used for rating_________________ Wetland has multiple HGM classes?___Y ____N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map ______________________________________ OVERALL WETLAND CATEGORY ____ (based on functions___ or special characteristics___) 1. Category of wetland based on FUNCTIONS _______Category I – Total score = 23 - 27 _______Category II – Total score = 20 - 22 _______Category III – Total score = 16 - 19 _______Category IV – Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Circle the appropriate ratings Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above A Wetland A 6/5/2020 Brandon Stimac X Depressional X 7 4 3 14 x x xIV Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 2 Rating Form – Effective January 1, 2015 Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure # Cowardin plant classes L 1.1, L 4.1, H 1.1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L 2.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Plant cover of dense trees, shrubs, and herbaceous plants S 1.3 Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to figure above) S 4.1 Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S 3.3 2 2 2 22 1 3 3 A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 3 Rating Form – Effective January 1, 2015 HGM Classification of Wetlands in Western Washington 1.Are the water levels in the entire unit usually controlled by tides except during floods? NO – go to 2 YES – the wetland class is Tidal Fringe – go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO – Saltwater Tidal Fringe (Estuarine) YES – Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2.The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO – go to 3 YES – The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3.Does the entire wetland unit meet all of the following criteria? ___The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ___At least 30% of the open water area is deeper than 6.6 ft (2 m). NO – go to 4 YES – The wetland class is Lake Fringe (Lacustrine Fringe) 4.Does the entire wetland unit meet all of the following criteria? ____The wetland is on a slope (slope can be very gradual), ____The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks, ____The water leaves the wetland without being impounded. NO – go to 5 YES – The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 5.Does the entire wetland unit meet all of the following criteria? ____The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, ____The overbank flooding occurs at least once every 2 years. For questions 1-7, the criteria described must apply to the entire unit being rated. If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 4 Rating Form – Effective January 1, 2015 NO – go to 6 YES – The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO – go to 7 YES – The wetland class is Depressional 7.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. NO – go to 8 YES – The wetland class is Depressional 8.Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 5 Rating Form – Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points = 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points = 2 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 1 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions).Yes = 4 No = 0 D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants <1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? Source_______________ Yes = 1 No = 0 Total for D 2 Add the points in the boxes above Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? Yes = 1 No = 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? Yes = 1 No = 0 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found)? Yes = 2 No = 0 Total for D 3 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page 2 0 3 4 9 1 0 0 1 2 x x 1 1 0 2 x A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 6 Rating Form – Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet) points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints = 2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 0 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes = 1 No = 0 D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = 0 Total for D 5 Add the points in the boxes above Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down-gradient of unit. points = 2 Surface flooding problems are in a sub-basin farther down-gradient. points = 1 Flooding from groundwater is an issue in the sub-basin. points = 1 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why _____________ points = 0 There are no problems with flooding downstream of the wetland. points = 0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = 2 No = 0 Total for D 6 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page 2 x 0 3 5 1 1 1 3 x 0 0 0 x A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 13 Rating Form – Effective January 1, 2015 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. ____Aquatic bed 4 structures or more: points = 4 ____Emergent 3 structures: points = 2 ____Scrub-shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 ____Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: ____The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods). ____Permanently flooded or inundated 4 or more types present: points = 3 ____Seasonally flooded or inundated 3 types present: points = 2 ____Occasionally flooded or inundated 2 types present: points = 1 ____Saturated only 1 type present: points = 0 ____Permanently flowing stream or river in, or adjacent to, the wetland ____Seasonally flowing stream in, or adjacent to, the wetland ____Lake Fringe wetland 2 points ____Freshwater tidal wetland 2 points H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points A x x x 2 2x x 1 1 x Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 14 Rating Form – Effective January 1, 2015 H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ____Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). ____Standing snags (dbh > 4 in) within the wetland ____Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) ____Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed) ____At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) ____Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata) Total for H 1 Add the points in the boxes above Rating of Site Potential If score is: 15-18 = H 7-14 = M 0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: % undisturbed habitat +[(% moderate and low intensity land uses)/2] = _______% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10-50% and in 1-3 patches points = 2 Undisturbed habitat 10-50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) ≤ 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is: 4-6 = H 1-3 = M < 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 It has 3 or more priority habitats within 100 m (see next page) It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is mapped as a location for an individual WDFW priority species It is a Wetland of High Conservation Value as determined by the Department of Natural Resources It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If score is: 2 = H 1 = M 0 = L Record the rating on the first page A 0 6 x 0 0 -2 -2 x 0 x 6%2%8 82%6% Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 15 Rating Form – Effective January 1, 2015 WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/) Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi- layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page). Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 16 Rating Form – Effective January 1, 2015 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes –Go to SC 1.1 No= Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? Yes = Category I No - Go to SC 1.2 Cat. I SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Yes = Category I No = Category II Cat. I Cat. II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Yes – Go to SC 2.2 No – Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes – Contact WNHP/WDNR and go to SC 2.4 No = Not a WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Yes = Category I No = Not a WHCV Cat. I SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Yes – Go to SC 3.3 No – Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Yes – Go to SC 3.3 No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Yes = Is a Category I bog No – Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? Yes = Is a Category I bog No = Is not a bog Cat. I A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 17 Rating Form – Effective January 1, 2015 SC 4.0. Forested Wetlands Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Yes = Category I No = Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) Yes – Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II Cat. I Cat. II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes – Go to SC 6.1 No = not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Yes = Category I No – Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No – Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes = Category III No = Category IV Cat I Cat. II Cat. III Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form A N/A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 18 Rating Form – Effective January 1, 2015 This page left blank intentionally A Figure 1: Land Use Intensity Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 1 of 2 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I05001,000 1,500 2,000250 Feet Legend Wetland A AccessibleHabitat 1 Km Buffer Land Use Intensity High Low to Medium Relatively Undisturbed Wetland A Figure 2: Cowardin Class and Hydroperiod Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 2 of 2 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I070140 210 28035Feet Legend 150ft Buffer Wetland A Contributing Basin Wetland ACowardin: ForestedHydroperiod: Permanently Flooded or Inundated Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 1 Rating Form – Effective January 1, 2015 Score for each function based on three ratings (order of ratings is not important) 9 = H,H,H 8 = H,H,M 7 = H,H,L 7 = H,M,M 6 = H,M,L 6 = M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L RATING SUMMARY – Western Washington Name of wetland (or ID #): _________________________________ Date of site visit: _____ Rated by____________________________ Trained by Ecology?__ Yes ___No Date of training______ HGM Class used for rating_________________ Wetland has multiple HGM classes?___Y ____N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map ______________________________________ OVERALL WETLAND CATEGORY ____ (based on functions___ or special characteristics___) 1.Category of wetland based on FUNCTIONS _______Category I – Total score = 23 - 27 _______Category II – Total score = 20 - 22 _______Category III – Total score = 16 - 19 _______Category IV – Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Circle the appropriate ratings Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 2.Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above B Wetland B 6/5/2020 Brandon Stimac X Depressional X 7 4 3 14 x x xIV Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 2 Rating Form – Effective January 1, 2015 Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure # Cowardin plant classes L 1.1, L 4.1, H 1.1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L 2.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Plant cover of dense trees, shrubs, and herbaceous plants S 1.3 Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to figure above) S 4.1 Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S 3.3 2 2 2 22 1 33 B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 3 Rating Form – Effective January 1, 2015 HGM Classification of Wetlands in Western Washington 1. Are the water levels in the entire unit usually controlled by tides except during floods? NO – go to 2 YES – the wetland class is Tidal Fringe – go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO – Saltwater Tidal Fringe (Estuarine) YES – Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO – go to 3 YES – The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? ___The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ___At least 30% of the open water area is deeper than 6.6 ft (2 m). NO – go to 4 YES – The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? ____The wetland is on a slope (slope can be very gradual), ____The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks, ____The water leaves the wetland without being impounded. NO – go to 5 YES – The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 5. Does the entire wetland unit meet all of the following criteria? ____The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, ____The overbank flooding occurs at least once every 2 years. For questions 1-7, the criteria described must apply to the entire unit being rated. If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 4 Rating Form – Effective January 1, 2015 NO – go to 6 YES – The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO – go to 7 YES – The wetland class is Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. NO – go to 8 YES – The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 5 Rating Form – Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points = 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points = 2 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 1 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions).Yes = 4 No = 0 D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants <1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? Source_______________ Yes = 1 No = 0 Total for D 2 Add the points in the boxes above Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? Yes = 1 No = 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? Yes = 1 No = 0 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found)? Yes = 2 No = 0 Total for D 3 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page 2 0 3 4 9 1 0 0 1 2 x x 1 1 0 2 x B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 6 Rating Form – Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet) points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints = 2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 0 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes = 1 No = 0 D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = 0 Total for D 5 Add the points in the boxes above Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down-gradient of unit. points = 2 Surface flooding problems are in a sub-basin farther down-gradient. points = 1 Flooding from groundwater is an issue in the sub-basin. points = 1 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why _____________ points = 0 There are no problems with flooding downstream of the wetland. points = 0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = 2 No = 0 Total for D 6 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page 2 x 0 3 5 1 1 1 3 x 0 0 0 x B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 13 Rating Form – Effective January 1, 2015 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. ____Aquatic bed 4 structures or more: points = 4 ____Emergent 3 structures: points = 2 ____Scrub-shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 ____Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: ____The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods). ____Permanently flooded or inundated 4 or more types present: points = 3 ____Seasonally flooded or inundated 3 types present: points = 2 ____Occasionally flooded or inundated 2 types present: points = 1 ____Saturated only 1 type present: points = 0 ____Permanently flowing stream or river in, or adjacent to, the wetland ____Seasonally flowing stream in, or adjacent to, the wetland ____Lake Fringe wetland 2 points ____Freshwater tidal wetland 2 points H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points B x x x 2 0 x 1 1 Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 14 Rating Form – Effective January 1, 2015 H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ____Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). ____Standing snags (dbh > 4 in) within the wetland ____Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) ____Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed) ____At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) ____Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata) Total for H 1 Add the points in the boxes above Rating of Site Potential If score is: 15-18 = H 7-14 = M 0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10-50% and in 1-3 patches points = 2 Undisturbed habitat 10-50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) ≤ 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is: 4-6 = H 1-3 = M < 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 It has 3 or more priority habitats within 100 m (see next page) It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is mapped as a location for an individual WDFW priority species It is a Wetland of High Conservation Value as determined by the Department of Natural Resources It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If score is: 2 = H 1 = M 0 = L Record the rating on the first page B 0 4 x 0 0 -2 -2 x 0 x 6%2%8 6%2%8 Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 15 Rating Form – Effective January 1, 2015 WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/) Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi- layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page). Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 16 Rating Form – Effective January 1, 2015 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes –Go to SC 1.1 No= Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? Yes = Category I No - Go to SC 1.2 Cat. I SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Yes = Category I No = Category II Cat. I Cat. II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Yes – Go to SC 2.2 No – Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes – Contact WNHP/WDNR and go to SC 2.4 No = Not a WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Yes = Category I No = Not a WHCV Cat. I SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Yes – Go to SC 3.3 No – Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Yes – Go to SC 3.3 No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Yes = Is a Category I bog No – Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? Yes = Is a Category I bog No = Is not a bog Cat. I B Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 17 Rating Form – Effective January 1, 2015 SC 4.0. Forested Wetlands Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Yes = Category I No = Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) Yes – Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II Cat. I Cat. II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes – Go to SC 6.1 No = not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Yes = Category I No – Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No – Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes = Category III No = Category IV Cat I Cat. II Cat. III Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form B N/A Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 18 Rating Form – Effective January 1, 2015 This page left blank intentionally B Figure 1: Land Use Intensity Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 1 of 2 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I05001,000 1,500 2,000250 Feet Legend Wetland B AccessibleHabitat 1 Km Buffer Land Use Intensity High Low to Medium Relatively Undisturbed Wetland B Figure 2: Cowardin Class and Hydroperiod Coulon Park Trestle Bridge Replacement2550 Lake Washington Blvd. Renton, WA 98056 Water Body: Lake WashingtonCounty: King June 2020 Sheet 2 of 2 Applicant: City of Renton, Parks Division Datum: OHWM=TBD MLLW= 0.0 Lat: 47.51097778 N Long: -122.20361111 WAdjacent Property Owners: (See Application)Parcel No. 052305-9010Section 05 Township 23N Range 05E Coulon ParkTrestle Bridge Replacement I070140 210 28035Feet Legend 150ft Buffer Wetland B Contributing Basin Wetland BCowardin: ForestedHydroperiod: Permanently Flooded or Inundated APPENDIX C BIOLOGICAL EVALUATION Biological Evaluation City of Renton Gene Coulon Memorial Beach Park Trestle Bridge Replacement Submitted to: U.S. Army Corps of Engineers Seattle District Seattle, Washington On Behalf of Applicant: City of Renton, Parks Planning and Natural Resources Renton, Washington SEPTEMBER 2020 Submitted by WSP USA 33301 Ninth Avenue South, Suite 300 Federal Way, Washington 30900024.000 Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page ii of ii BIOLOGICAL EVALUATION CITY OF RENTON GENE COULON PARK TRESTLE BRIDGE REPLACEMENT TABLE OF CONTENTS SECTION PAGE 1.0 PURPOSE OF BIOLOGICAL EVALUATION ...................................................................1 2.0 PROPOSED ACTION AND ACTION AREA.....................................................................1 2.1 Proposed Action..................................................................................................1 2.2 Duration of Activities...........................................................................................3 2.3 Minimization Measures and Best Management Practices ...............................3 2.4 Action Area...........................................................................................................5 3.0 STATUS OF SPECIES AND CRITICAL HABITAT ..........................................................8 4.0 BIOLOGICAL REQUIREMENTS ......................................................................................9 4.1 Chinook Salmon (Oncorhynchus tshawytscha)...............................................9 4.2 Steelhead (Oncorhynchus mykiss)..................................................................10 4.3 Bull Trout (Salvelinus confluentus).................................................................10 4.4 Critical Habitat Designation for Each ESU/DPS..............................................11 5.0 ENVIRONMENTAL BASELINE ......................................................................................15 5.1 General Setting ..................................................................................................15 5.2 Terrestrial and Riparian Habitat .......................................................................16 5.3 Aquatic Habitat...................................................................................................16 6.0 MATRIX OF PATHWAYS AND INDICATORS ANALYSIS............................................16 6.1 Water Quality......................................................................................................17 6.2 Habitat Access ...................................................................................................18 6.3 Habitat Elements................................................................................................18 6.4 Channel Conditions and Dynamics..................................................................20 6.5 Flow/Hydrology..................................................................................................20 6.6 Watershed Conditions.......................................................................................21 6.7 Pathways and Indicators Specific to Bull Trout Only.....................................22 7.0 EFFECTS OF THE ACTION ...........................................................................................22 7.1 Direct Effects......................................................................................................22 7.2 Indirect Effects...................................................................................................23 7.3 Effects from Interdependent and Interrelated Actions...................................23 7.4 Effects Determinations for Listed Species and Designated Critical Habitat....................................................................................................24 8.0 REFERENCES................................................................................................................26 9.0 LIST OF ACRONYMS AND ABBREVIATIONS .............................................................29 Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page ii of ii LIST OF TABLES Table 1. Proposed Repairs, Locations within the Project Area, and Repair Methods .........3 Table 2. Project Equipment and Terrestrial Noise Levels.......................................................7 Table 3. Project-Related Terrestrial Noise Attenuation..........................................................7 Table 4. Species Listed under the ESA Addressed in this BE ................................................8 Table 5. Species Listed but Not Addressed in this BE ............................................................8 Table 6. Salmon Critical Habitat Designation and Description...........................................12 Table 7. Bull Trout Critical Habitat Designation and Description .......................................13 LIST OF APPENDICES Appendix A – Figures (Sheets 1 to 8) Appendix B – Species Lists Appendix C – Essential Fish Habitat Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 BIOLOGICAL EVALUATION CITY OF RENTON GENE COULON PARK TRESTLE BRIDGE REPLACEMENT 1.0 PURPOSE OF BIOLOGICAL EVALUATION The City of Renton (City) Parks Planning & Natural Resources Division proposes maintenance repairs of an existing pedestrian bridge over Lake Washington within Gene Coulon Memorial Beach Park in Renton, Washington (Sheets 1-8, all figures are located in Appendix A). The pedestrian bridge comprises timber abutments, timber decking, timber piles, and pedestrian guardrails (Sheet 2). A condition assessment performed in 2019 indicated severe deterioration of wood pilings at the bridge and the need for replacing the existing timber bridge with a new structure. The proposed actions will involve work below the ordinary high water mark (OHWM) of Lake Washington, which will require a Section 404 permit (Nationwide Permit No. 3) from the U.S. Army Corps of Engineers (USACE). This represents a federal nexus requiring the USACE to evaluate the potential for effects to species or critical habitats listed or proposed for listing under the Endangered Species Act (ESA). The USACE will serve as the lead agency in this consultation. The purpose of this biological evaluation (BE) is to evaluate the potential effects of the proposed activities on ESA-listed species for purposes of consultation with the National Oceanic and Atmospheric Administration’s National Marine Fisheries Service, (NOAA Fisheries), and the U.S. Fish and Wildlife Service (USFWS) under Section 7 of the ESA, collectively referred to as the Services. 2.0 PROPOSED ACTION AND ACTION AREA 2.1 PROPOSED ACTION The purpose of the project is to replace an existing timber pile-supported timber trestle pedestrian bridge with a new single-span steel bridge with grated decking (Sheets 1 through 7, Appendix A). The pedestrian bridge is located in Gene Coulon Memorial Beach Park in Renton, Washington. A condition assessment of the existing timber trestle was performed in 2017 which found deterioration and that timber trestle repairs were required. During the repairs of the timber trestle in 2018, additional timber piles were observed to have severe deterioration. With approximately 40% of the piles requiring replacement it was determined that the existing timber trestle required replacement with a new bridge. The new bridge will conform to Americans with Disabilities Act accessibility guidelines. The single-span steel bridge and abutments have been designed to accommodate park maintenance vehicles. The replacement of the bridge and abutments will be conducted within the existing footprint of the existing bridge, with the exception that at the center of the bridge there will be an overlook that is 60 square feet on the waterside. Removal of the old creosote piles and reduction in overwater Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 coverage in both square footage and 50 percent steel grating will allow more light to pass through the bridge, which will benefit the surrounding habitat. Additional details of project components are described below. 2.1.1 Bridge Removal The existing 12.5-foot-wide timber deck bridge will be removed primarily by a barge- mounted crane. The existing bridge measures 105 feet 2 inches from the back of the north abutment to the back of the south abutment (Sheet 2). A total of 1,325 square feet of timber decking will be removed and disposed of at an upland facility. A total of eight total treated timber pile caps and the existing water utility lines underneath the bridge will be removed. 2.1.2 Piles Following the removal of the timber bridge structure, a total of 58 timber piles ranging from 12- to 16-inches in diameter will be removed using a vibratory hammer. Of the 58 piles to be removed, 48 piles are from the bridge structure and 10 are derelict piles located near each of the bridge abutments. The timber piles were installed prior to 1981. Because of their age, piles may break during removal leaving pile stubs lodged in sediment. If pile stubs cannot be removed by vibratory methods, piles will be cut 1 foot below mudline using commercial divers and a saw. The timber superstructure, including timber decking and beams, will be removed by a barge- mounted crane. Piles will be disposed of at an approved upland facility. A total of six new 18-inch steel pipe piles will be installed at the north and south faces of the bridge to provide support for the concrete abutments (Sheet 4). The six new pipe piles will be installed upland of the OHWM using a vibratory hammer. 2.1.3 Abutments The existing timber abutments will be removed and replaced in kind with concrete abutments. Approximately 13.5 cubic yards of material will be excavated around the abutment area to accommodate placement of the new concrete abutments. New concrete abutments are of similar dimension to the existing timber abutments (Sheets 6 and 7). Riprap will be temporarily removed to accommodate placement of the new abutments, then placed back within the existing riprap footprint. Abutment placement, material removal, and riprap removal/placement will occur upland of the OHWM (Sheets 2 and 3). 2.1.4 New Bridge Placement The new 12-foot, three-inch-wide bridge comprises concrete walkways at the north and south portion of the bridge with grated decking in between the concrete walkways. The new clear span bridge is composed of concrete-covered steel girders with fascia panels and new railing (Sheet 5). The new bridge length is 105 feet 8 inches, measured from the back of the north abutment to the back of the south abutment. A 60-square-foot overlook located on the west side of the bridge will provide views of Lake Washington (Sheet 3). The new bridge measures 1,367 square feet total, and 1,189 square feet of this total is located over water. Of the 1,189 square Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 feet, a total of 899 square feet will be grated steel decking. The grated decking will have a minimum of 50 percent openings. Table 1 summarizes project maintenance and repair activities. Table 1. Proposed Repairs, Locations within the Project Area, and Repair Methods Repair Item Item Size Repair Method Piles 12-inch to 16- inch Removal of 58 timber piles ranging from 12-inches to 16-inches, replaced with six new 18-inch steel pipe piles. Bridge replacement 12.5-foot wide timber deck Removal of 12.5-foot wide timber deck and replacement with 12-foot, 3-inch wide bridge with concrete walkways with grated decking between the walkways. 2.1.5 Riprap Removal and Replacement Replacement of riprap material will occur within the existing riprap footprint near the abutments of the bridge. No additional riprap will be placed into Lake Washington. Existing riprap will be temporarily removed during construction and replaced upon completion. 2.2 DURATION OF ACTIVITIES The proposed action will be conducted during the Washington Department of Fish and Wildlife (WDFW) and USACE-approved in-water work window for Lake Washington between November 16 and December 31, and between July 16 and July 31. Construction is expected to start in October 2021 and in-water construction would likely begin 16 November 2021. 2.3 MINIMIZATION MEASURES AND BEST MANAGEMENT PRACTICES The proposed project is confined to the limits of the existing bridge structure including piles and abutments. The bridge replacement will not expand the footprint of the existing structure and will not further encroach into Lake Washington. Replacement of riprap material will occur within the existing riprap footprint near the abutments of the bridge. No additional riprap will be placed into Lake Washington. The proposed project will not result in a loss of waters of the United States and, thus, will have no effect on the surrounding aquatic habitat. The project will result in a net benthic gain from the removal of structural and derelict piles, and overwater shading will be reduced by the replacement of a timber deck with a grated deck. In addition, the following minimization measures and best management practices (BMPs) will be employed during construction to minimize project impacts. 2.3.1 Minimization Measures Overwater and in-water work will be conducted only during the approved in- water work windows for salmon and bull trout in Lake Washington during the summer window (July 16 to August 31) and/or the winter window (November 16 to December 31) Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Project construction will be completed in compliance with Washington State Water Quality Standards (Washington Administrative Code [WAC] 173-201A), including Petroleum products, fresh cement, lime, concrete, chemicals, or other toxic or deleterious materials will not be allowed to enter surface waters. There will be no discharge of oil, fuels, or chemicals to surface waters or onto land where there is a potential for reentry into surface waters. The contractor will prepare a spill prevention, control, and countermeasures (SPCC) plan, and it will be used during all demolition and construction operations. A copy of the plan with any updates will be maintained at the work site. The SPCC plan will outline BMPs, responsive actions in the event of a spill or release, and notification and reporting procedures. The plan will also outline management elements, such as personnel responsibilities, project site security, site inspections, and training. The SPCC plan will outline the measures to prevent the release or spread of hazardous materials found on site or encountered during construction but not identified in contract documents, including any hazardous materials that are stored, used, or generated on site during construction. These items include, but are not limited to, gasoline, diesel fuel, oils, and chemicals. Applicable spill response equipment and material designated in the SPCC plan will be maintained at the job site. Corrective actions will be taken in the event of any discharge of oil, fuel, or chemicals into the water, including the following. Containment and cleanup efforts will begin immediately upon discovery of the spill and be completed in an expeditious manner in accordance with all local, state, and federal regulations. Spill response will take precedence over normal work. Cleanup will include proper disposal of any spilled material and used cleanup material. The cause of the spill will be ascertained and appropriate actions taken to prevent further incidents or environmental damage. Spills will be reported to the Washington State Department of Ecology’s (Ecology) Northwest Regional Spill Response Office at 425/649-7000. Excess or waste materials will not be disposed of or abandoned waterward of the OHWM or allowed to enter waters of the state. Waste materials will be disposed of in an appropriate manner consistent with applicable local, state, and federal regulations. Demolition and construction materials will not be stored where upland runoff can cause materials to enter surface waters. Oil-absorbent materials will be present on site to use in the event of a spill or if any oil product is observed in the water. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 2.3.2 Pile Removal BMPs Pile removal BMPs will be applied, including the following. A containment boom will surround the work area to contain and collect any floating debris and sheen. Any debris will be retrieved and disposed of properly. The piles will be dislodged with a vibratory hammer or pulled with heavy equipment like an excavator, when possible, and will not be intentionally broken by twisting or bending. The piles will be removed in a single, slow, and continuous motion in order to minimize sediment disturbance and turbidity in the water column. If a pile breaks above or below the mudline, it will be cut or pushed in the sediment consistent with agency approved BMPs. Any cut or broken pilings will be marked with GPS coordinates and provided to the regulatory agencies and the City to document any piles left in place. Removed piles, stubs, and associated sediments (if any) will be contained on a barge or upland. If piles are placed directly on the barge and not in a container, the storage area will consist of a row of hay or straw bales, filter fabric, or similar material placed around the perimeter of the barge. All creosote-treated material, pile stubs, and associated sediments (if any) will be disposed of by the contractor in a landfill approved to accept those types of materials. 2.4 ACTION AREA This section describes the action area for the proposed activities. The action area is the defined geographic area that could be affected by the direct and indirect effects of the proposed project. The action area (Sheet 8) has been established based on the following: The project footprint, which will be limited to the physical locations of the maintenance activities. The extent of temporarily elevated terrestrial and underwater noise levels associated with construction activities. The extent of temporary effects to water quality during construction. 2.4.1 Project Footprint The action area includes the overall footprint of the proposed action, which includes the locations of the new trestle bridge and mitigation activities. The action area also includes the locations of equipment and material staging, which will occur in upland portions of the site. 2.4.2 Temporarily Elevated Turbidity Construction activities conducted below the OHWM and mean higher high water of Lake Washington have the potential to temporarily elevate turbidity. The zone of impact associated with potential temporarily increased levels of turbidity due to pile driving is based on the extent of the anticipated mixing zone authorization for the 401 Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Water Quality Certification for the project. For marine waters, the point of compliance for the temporary area of mixing during construction is established at a radius of 150 feet from the activity causing the turbidity exceedance. 2.4.3 Temporarily Elevated Underwater Noise Hydroacoustic Technology, Inc. (HTI) recorded an underwater background (ambient) sound level of 149 dBRMS in the south end of Lake Washington from August 2 to 5, 2013 during hydroacoustic monitoring of the Boeing North Bridge Replacement project (HTI 2013). Currently, the Services (NOAA Fisheries and USFWS) use the practical spreading loss equation to calculate noise transmission loss (TL) underwater (Washington State Department of Transportation [WSDOT] 2017): TL = 15* Log (R1/R2) Where: R1= the distance at which transmission loss is estimated. R2= the distance from the measured sound level. The distance at which the source sound level attenuates to a predetermined sound level (e.g., ambient noise level) can be calculated by rearranging the above equation to give: R1= R2* 10 (TL/15) Where: TL = the difference between the sound source level and the ambient sound level at some distance. The calculation assumes that noise energy decreases at a rate of 4.5 dB per doubling of distance (WSDOT 2017). Assuming an underwater background sound level of 149 dBRMS and a conservative sound level of 170 dBRMS for vibratory installation of up to 18-inch steel piles (Caltrans 2012), the distance at which the source sound level attenuates to the ambient underwater sound level can be calculated as follows: R1= (10 meters) * 10([170 – 149] /15) R1= (10 meters)*100.07= (10 meters) * (25.1) = 251.2 meters. Therefore, underwater noise generated by the vibratory installation of 18-inch- diameter steel piles will attenuate to the ambient underwater sound level (149 dBRMS) in south Lake Washington at a distance of 824 feet (251.2 meters) from the noise source. The underwater action area is thus defined as the underwater area covered within an 824-foot radius of the project site. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 2.4.4 Temporarily Elevated Terrestrial Noise Baseline and construction-related terrestrial noise levels were inferred using a technique recommended by WSDOT (WSDOT 2019). That guidance includes information regarding average noise levels associated with construction equipment (Thalheimer 2000) and noise attenuation data from the Federal Transit Administration’s (FTA) Transit Noise and Vibration Impact Assessment Guidance (FTA 2006). The project has the potential to generate low levels of terrestrial noise during construction. Table 2 below provides a list of the standard construction equipment that will be required during construction, and the maximum terrestrial noise levels anticipated. The greatest noise will be produced by the simultaneous use of excavators, dozers, and an air hammer. Using the rules for decibel addition, the peak terrestrial noise level of 85 decibels (dBA) generated by the air hammer and pile driver would be increased by 2 dBA. Therefore, the peak terrestrial noise generated during project construction, would be approximately 87 dBA. Table 1. Project Equipment and Terrestrial Noise Levels Equipment Purpose Maximum Terrestrial Noise Level (dBA at 50 feet) Air Compressors Pneumatic Equipment 70 Dump Trucks Earthwork and Grading 76 Excavators Earthwork and Grading 81 Pile Driver Anchor Installation 85 Air Hammer Anchor Installation 85 The project site is approximately 0.25 mile west of Interstate 405 (I-405). WSDOT’s Annual Traffic Report (2016) estimates traffic levels on I-405 at approximately 6,208 vehicles per hour. Using a more conservative estimate of 6,000 vehicles per hour at the given speed limit of 60 mph, ambient noise levels from traffic at the project site are estimated at 63.2 dB at 50 feet. Hard site conditions were assumed for noise attenuation purposes because most of the surrounding landscape is either hardscape or open water. Table 2. Project-Related Terrestrial Noise Attenuation Distance from source (ft) Construction Noise in dBA (Point Source, Hard Site) (-6.0 dBA reduction per doubling of distance) 50 86 100 80 200 74 400 68 800 62* Based on the noise attenuation assumptions described above, terrestrial noise from vibratory pile driving is expected to attenuate to the ambient level of approximately Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 63.2 dBA within between approximately 400 and 800 feet from the location of project activities. For purposes of this consultation, the more conservative 800-foot distance has been used to estimate the maximum extent of detectable terrestrial noise. 3.0 STATUS OF SPECIES AND CRITICAL HABITAT This section discusses the ESA-listed species and critical habitat known to occur, or with the potential to occur, within the action area (see Appendices B and C for the species lists and essential fish habitat summary). Information for this BE regarding listed species was obtained from the USFWS website (USFWS 2020) and the NOAA Fisheries website (NOAA Fisheries 2020) on April 13, 2020. Additional information came from the WDFW Priority Habitat and Species (PHS) (WDFW 2020) and SalmonScape databases (WDFW 2020a) (see Table 4). Table 4. Species Listed under the ESA Addressed in this BE Species Name Common Name Scientific Name ESU or DPS*ESA Listing Status Critical Habitat Critical Habitat in Action Area Chinook Salmon Oncorhynchus tshawytscha Puget Sound ESU Threatened Designated Yes Steelhead Oncorhynchus mykiss Puget Sound DPS Threatened Designated No Bull Trout Salvelinus confluentus Coastal Puget Sound DPS Threatened Designated Yes *ESU =Evolutionarily Significant Unit; DPS=Distinct Population Segment According to the USFWS and NOAA Fisheries species lists, although the species listed in Table 5 and/or their designated critical habitat do occur, or may occur, within King County, they are not addressed in this BE for the reasons that are discussed below. Table 5. Species Listed but Not Addressed in this BE Species Name Common Name Scientific Name ESA Listing Status Gray Wolf Canis lupus Proposed Endangered North American Wolverine Gulo gulo luscus Proposed Endangered Marbled Murrelet Brachyramphus marmoratus Threatened Streaked Horned Lark Eremophila alpestris strigata Threatened Yellow-Billed Cuckoo Coccyzus americanus Threatened While information from USFWS (USFWS 2020) identified the potential for gray wolf, North American wolverine, marbled murrelet, streaked horned lark, and yellow- billed cuckoo to occur within the County, WDFW PHS data does not indicate any known occurrence of these species within the action area. In addition, the action area does not provide any suitable habitat for these species. Based on the lack of suitable Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 habitat for the species listed in Table 5, it is determined that the proposed project will have no effect on them, and they are not addressed further in this BE. 4.0 BIOLOGICAL REQUIREMENTS This section describes the biological requirements of the listed species that have the potential to occur within the action area. These descriptions include run timing, biological requirements, and factors affecting recovery. 4.1 CHINOOK SALMON (ONCORHYNCHUS TSHAWYTSCHA) The Puget Sound ESU of Chinook salmon includes all naturally spawned populations of Chinook salmon from rivers and streams flowing into Puget Sound (70 Federal Register [FR] 52630). Puget Sound ESU Chinook salmon are listed as threatened by NOAA Fisheries under the ESA. Critical habitat for Puget Sound Chinook salmon was designated in 2005 and consists of river and marine nearshore habitat within the Puget Sound basin. Critical habitat for Puget Sound Chinook salmon is present within the action area. 4.1.1 Distribution and Habitat Requirements Compared to the other Pacific salmon, Chinook salmon have the most complex life history with a large variety of patterns. The length of freshwater and saltwater residency varies greatly (Myers et al. 1998). Channel size and morphology, substrate size and quality, water quality, and cover type and abundance may influence distribution and abundance of Chinook salmon (Lower Columbia Fish Recovery Board [LCFRB] 2004). After three to five years in the ocean, Puget Sound stocks return to the local rivers and tributaries to spawn in the spring and fall. Spawning occurs in the main stems of larger tributaries in coarse gravel and cobble (Myers et al. 1998). Most juvenile summer/fall Chinook salmon in the river systems discharging to the Puget Sound migrate to the marine environment as smolts during their first year, although their early life history patterns vary. Some migrate downstream almost immediately after emerging from the gravel. Others migrate downstream and enter side channels where they may rear for several weeks before migrating to marine waters. A third life-history strategy involves a more extended rearing time (up to two years) in the river before migrating to salt water. 4.1.2 Status Chinook salmon populations are significantly reduced from historic levels. The Puget Sound ESU has shown a precipitous drop since 1973, and the stock status is currently identified as critical (Smith 2003). Habitat degradation associated with stream blockages, channelization, contamination, forest practices, and urbanization are listed as the primary causes of decline in the Puget Sound ESU Chinook salmon population. 4.1.3 Presence in Action Area Juvenile Chinook enter Lake Washington from riverine habitats before entering Lake Washington. Smolts use the lake primarily as a migration corridor. Juveniles can be found using the littoral zone Lake Washington as well as limnetic habitats (Kerwin Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 2001). This species may be found migrating through the action area toward Puget Sound from May through summer. 4.2 STEELHEAD (ONCORHYNCHUS MYKISS) Puget Sound DPS steelhead are listed as threatened by NOAA Fisheries under the ESA (11 May 2007; 72 FR 26722). Critical habitat was proposed for Puget Sound DPS steelhead on 25 March 2016 and includes estuarine and riverine habitat and is not listed in Lake Washington. Critical habitat for Puget Sound DPS steelhead is not present within the action area. 4.2.1 Distribution and Habitat Requirements Steelhead is a more widely distributed anadromous fish than salmonids. Spawning occurs throughout the winter and spring seasons. Summer-run fish populations are smaller than winter-run fish as they use a smaller portion of stream for spawning. Wild fish mature for up to two years in freshwater habitat and migrate quickly to the open ocean, bypassing the use of shallow, nearshore habitat (Behnke 1992). Adult steelhead trout will spend up to three years in the open ocean before returning to their rearing grounds (NOAA 2016). Steelhead use a variety of habitats throughout the freshwater portion of their life history. As with all salmonid species, water temperatures and intra-gravel flow are also important for spawning and incubation. After fry emerge from the gravels, they seek complex habitat of boulders, rootwads, and woody material along the stream margins. As juveniles get older and larger, they move downstream to rear in larger tributaries and main stem rivers. Undercut banks, large woody debris (LWD), and boulders are all used by larger juveniles. 4.2.2 Status Factors contributing to the decline of Puget Sound DPS steelhead include blocked access to historical habitat, habitat degradation, channelization, contamination, forest practices, and urbanization. The primary limiting factors for this DPS are degradation and fragmentation of freshwater habitat. Most populations of this DPS are declining annually by between 3 to 10 percent with a moderate to high extinction risk within 100 years (NOAA Fisheries 2011). 4.2.3 Presence in Action Area The Cedar River drains to lower Lake Washington, which connects to Puget Sound. This corridor is used by wild winter-run steelhead from February through April while hatchery fish run from mid-November through mid-February. 4.3 BULL TROUT (SALVELINUS CONFLUENTUS) The Puget Sound DPS bull trout are listed as threatened by the USFWS under the ESA. Critical habitat for Puget Sound DPS bull trout was designated in 2005 and consists of marine areas and various rivers and creeks (70 FR 56212-56311) including Lake Washington. The Puget Sound DPS includes all natural spawning populations of bull trout in the Puget Sound basin, including in the streams that flow into Puget Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Sound. The Puget Sound DPS bull trout is a federal threatened species. Bull trout are piscivorous and are the only native char. 4.3.1 Distribution and Habitat Requirements Compared to other salmonids, bull trout are thought to have more specific habitat requirements and are most often associated with undisturbed habitat with diverse cover and structure. Spawning and rearing are thought to be primarily restricted to relatively pristine cold streams, often within headwater reaches (Rieman and McIntyre 1993). Adults can reside in lakes, reservoirs, and coastal areas or they can migrate to salt water (63 FR 31647). Juveniles are typically associated with shallow backwater or side-channel areas, while older individuals are often found in deeper pools sheltered by large organic debris, vegetation, or undercut banks (63 FR 31467). Water temperature is also a critical factor for bull trout, and areas where water temperature exceeds 59°F (15°C) are thought to limit distribution (Rieman and McIntyre 1993). 4.3.2 Status Key factors in the decline of bull trout populations include harvest by anglers, impacts to watershed biological integrity, and the isolation and fragmentation of populations. Changes in sediment delivery (particularly to spawning areas), degradation and scouring, shading (high water temperature), water quality, and low hydrologic cycles adversely affect bull trout. Therefore, impacted watersheds are negatively associated with current populations. Additionally, bull trout appear to be affected negatively by non-native trout species through competition and hybridization. 4.3.3 Presence in Action Area Critical habitat for bull trout is designated throughout Lake Washington and bull trout are found in portions of the Cedar River located approximately one mile to the southwest of the project site. 4.4 CRITICAL HABITAT DESIGNATION FOR EACH ESU/DPS This section describes the critical habitat designations and/or proposals for each ESA- listed species that could potentially occur within the action area. 4.4.1 Steelhead Although critical habitat was designated on February 24, 2016, for Puget Sound steelhead, critical habitat for this species does not occur within Lake Washington and the action area. 4.4.2 Salmon Critical habitat has been designated within the action area for the ESU/DPS of ESA- listed salmon that may occur within the action area. Table 6 summarizes critical habitat designations and descriptions for Chinook salmon. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Table 6. Salmon Critical Habitat Designation and Description Species and ESU/DPS Date of Critical Habitat Proposal Description of Critical Habitat Chinook Salmon Puget Sound ESU 16 February 2000 River subbasins: Nooksack, Upper Skagit, Sauk, Lower Skagit, Stillaguamish, Skykomish, Snoqualmie, Snohomish, Duwamish, Puyallup, Nisqually, Skokomish, and Dungeness/Elwha Lake Washington, Hood Canal, Nearshore Marine Areas of the Strait of Georgia, Puget Sound, Hood Canal, and the Strait of Juan de Fuca (to the west edge of the Elwha River Delta) 4.4.2.1 Primary Constituent Elements This section consists of a discussion of the primary constituent elements (PCEs) that have been identified for ESA-listed salmon and steelhead and the potential for their presence within the action area. 1. Freshwater spawning sites with water quantity and quality conditions and substrate supporting spawning, incubation, and larval development. Action area: The action area includes the freshwater habitat of Lake Washington. The substrate within the action area is primarily silt and sand and does not contain the appropriate substrate to support spawning, incubation and larval development. This PCE is not present within the action area. 2. Freshwater rearing sites with water quantity and floodplain connectivity to form and maintain physical habitat conditions and support juvenile growth and mobility; water quality and forage supporting juvenile development; and natural cover, such as shade, submerged and overhanging large wood, log jams and beaver dams, aquatic vegetation, large rocks and boulders, side channels, and undercut banks. Action area: The action area includes the freshwater habitat of Lake Washington which contains some natural cover near the shorelines within the project action area. This PCE is present within the action area. 3. Freshwater migration corridors free of obstruction with water quantity and quality conditions and natural cover, such as submerged and overhanging large wood, aquatic vegetation, large rocks and boulders, side channels, and undercut banks supporting juvenile and adult mobility and survival. Action area: The action area includes the freshwater habitat of Lake Washington. This PCE is present within the action area. 4. Estuarine areas free of obstruction with water quality, water quantity and salinity conditions supporting juvenile and adult physiological transitions between fresh and salt water; natural cover, such as submerged and overhanging large wood, aquatic vegetation, large rocks and boulders, and Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 side channels, and juvenile and adult forage, including aquatic invertebrates and fishes, supporting growth and maturation. Action area: The action area includes the freshwater habitat of Lake Washington. Estuarine habitat is not present within the action area and, therefore, this PCE is not present within the action area. 5. Nearshore marine areas free of obstruction with water quality and quantity conditions and forage, including aquatic invertebrates and fishes, supporting growth and maturation; and natural cover, such as submerged and overhanging large wood, aquatic vegetation, large rocks and boulders, and side channels. Action area: The action area includes the freshwater habitat of Lake Washington and nearshore marine waters are not present within the action area. This PCE is not present within the action area. 6. Offshore marine areas with water quality conditions and forage, including aquatic invertebrates and fishes, supporting growth and maturation. Action area: There are no offshore marine areas within the action area. This PCE is not present within the action area. 4.4.3 Bull Trout Critical habitat has been designated within the action area for the Coastal Puget Sound DPS of ESA-listed bull trout that may occur within the action area. Table 7 summarizes the critical habitat designations and descriptions for bull trout. Table 7. Bull Trout Critical Habitat Designation and Description Species and DPS Date of Critical Habitat Proposal Description of Critical Habitat Bull Trout Coastal Puget Sound DPS 17 November 2010 Olympic Peninsula nearshore marine, Hood Canal, Puget Sound, Strait of Juan de Fuca, and all major river basins of the Olympic Mountains 4.4.3.1 Primary Constituent Elements This section consists of a discussion of the PCEs that have been identified for ESA- listed bull trout, and the potential for their presence within the action area. 1. Springs, seeps, groundwater sources, and subsurface water connectivity (hyporheic flows) to contribute to water quality and quantity and provide thermal refugia. Action area: At a minimum, the action area does provide seasonally appropriate water temperatures and thermal refugia for migrating Puget Sound DPS bull trout. This PCE is present within the action area. 2. Migratory habitats with minimal physical, biological, or water quality impediments between spawning, rearing, overwintering, and freshwater and Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 marine foraging habitats, including but not limited to, permanent, partial, intermittent, or seasonal barriers. Action area: The freshwater nearshore habitat within the action area provides suitable migratory habitat for Puget Sound DPS bull trout. Bull trout have been documented in Lake Washington, which is designated critical habitat for Puget Sound DPS bull trout. This PCE is present within the action area. 3. An abundant food base, including terrestrial organisms of riparian origin, aquatic macroinvertebrates, and forage fish. Action area: Terrestrial organisms of riparian origin, aquatic macroinvertebrates, and forage fish could occur in nearshore freshwater environments within the action area, and could provide a food source for bull trout. This PCE is present within the action area. 4. Complex river, stream, lake, reservoir, and marine shoreline aquatic environments and processes with features such as large wood, side channels, pools, undercut banks and unembedded substrates, to provide a variety of depths, gradients, velocities, and structure. Action area: Complex stream and shoreline conditions are limited within the action area, but a small off-channel inlet is present under the existing bridge. Nearshore habitats in Lake Washington near the project and action areas contain undeveloped and undisturbed areas. This PCE is present within the action area. 5. Water temperatures ranging from 36 to 59 degrees F (2 to 15 degrees C), with adequate thermal refugia available for temperatures at the upper end of this range. Specific temperatures within this range will depend on bull trout life-history stage and form; geography; elevation; diurnal and seasonal variation; shading, such as that provided by riparian habitat; streamflow, and local groundwater influence. Action area: The action area provides seasonally appropriate water temperatures and thermal refugia for migrating Puget Sound DPS bull trout. This PCE is present in the action area. 6. In spawning and rearing areas, substrate of sufficient amount, size, and composition to ensure success of egg and embryo overwinter survival, fry emergence, and young-of-the-year and juvenile survival. A minimal amount of fine sediment, generally ranging in size from silt to coarse sand, embedded in larger substrates, is characteristic of these conditions. The size and amounts of fine sediment suitable for bull trout will likely vary from system to system. Action area: There may be suitable bull trout spawning habitat within the action area due to silt and sandy substrate within Lake Washington. This PCE is present within the action area. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 7. A natural hydrograph, including peak, high, low, and base flows within historic and seasonal ranges or, if flows are controlled, minimal flow departure from a natural hydrograph. Action area: The hydrology/hydraulics of Lake Washington contain peak, high, low and base flows, though the controlled nature of the lake due to locks has resulted in a significant departure from the natural hydrograph with consistent lake elevations. This PCE is present within the action area. 8. Sufficient water quality and quantity such that normal reproduction, growth, and survival are not inhibited. Action area: The action area has sufficient water quality conditions to provide a migratory corridor for populations of Puget Sound DPS bull trout. This PCE is present within the action area. 9. Sufficiently low levels of occurrence of nonnative predatory (e.g., lake trout, walleye, northern pike, smallmouth bass), interbreeding (e.g., brook trout), or competing (e.g., brown trout) species that, if present, are adequately temporarily and spatially isolated from bull trout. Action area: Several predatory species are likely found in Lake Washington that would compete with bull trout. These include largemouth bass (Micropterus salmoides) and smallmouth bass (M. dolomieu). This PCE is not present within the action area. 5.0 ENVIRONMENTAL BASELINE This section outlines the presence and condition of aquatic and terrestrial habitat features within the action area as they pertain to the species addressed in this BE. The following sections summarize the baseline habitat conditions at both the action area and watershed scales, and then analyze the likely effects that the proposed action would have on the baseline conditions at both scales. 5.1 GENERAL SETTING The proposed activities will occur on an existing pedestrian bridge over Lake Washington in Gene Coulon Memorial Beach Park in Renton, Washington (Sheets 1 and 2, Appendix A). The project site is within Water Resource Inventory Area 8, Cedar-Sammamish watershed, and is located within Hydraulic Unit Code 17110012. The City of Renton owns the Gene Coulon Memorial Beach Park parcels, where the pedestrian bridge is located (Sheets 1 and 3, Appendix A). Adjacent parcels are developed with single-family residences, apartment buildings, and commercial businesses. The City owns the parcels to the north, which are part of the park. Lake Washington is located to the west of the project site. The shoreline of Lake Washington has been altered from its natural condition. Portions of the shoreline are artificially hardened with riprap. Pile-supported structures like bridges and docks are common along the shoreline. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 5.2 TERRESTRIAL AND RIPARIAN HABITAT Vegetation along the shoreline within the project area consists of a mixture of native and ornamental plant and tree species. The overstory is composed of western red cedar (Thuja plicata), western larch (Larix occidentalis), western flowering dogwood (Cornus nuttallii), bigleaf maple (Acer macrophyllum), red alder (Alnus rubra), Scouler’s willow (Salix scouleriana), and western hemlock (Tsuga heterophylla). Western hemlock is located between the railroad and concrete footings located to the east of the bridge. Western red cedars wrap are located near the southeast portion of the project site, and individual larch trees line the pedestrian trail. There are several Pacific willows located within the wetlands to the east of the bridge. Understory consists of salal (Gaultheria shallon), black huckleberry (Vaccinium membranaceum), ocean spray (Holodiscus discolor), creeping buttercup (Ranunculus repens), common horsetail (Equisetum arvense), rushes (Juncaceae spp.), privet honeysuckle (Lonicera pileata), skunk cabbage (Lysichiton americanus), Douglas spirea (Spiraea douglasii) and cattails (Typhaceae spp.). The invasive species yellow iris (Iris pseudacorus), Himalayan blackberry (Rubus armeniacus), curly dock (Rumex crispus), and reed canarygrass (Phalaris arundinacea) were observed to the immediate southeast of the pedestrian bridge. 5.3 AQUATIC HABITAT The project is located at the pedestrian trestle bridge traversing Lake Washington, which the Cedar River drains into. Lake Washington provides aquatic habitat for a variety of species of fish and wildlife. The lake provides cool, clear water and substrate for fish rearing, spawning, migration, and foraging. Lake Washington is a passage for fish migrating to the Puget Sound. Waterfowl also use the low-elevation coniferous forest on the shorelines of the lake for foraging. 6.0 MATRIX OF PATHWAYS AND INDICATORS ANALYSIS An evaluation of the baseline watershed habitat conditions within the action area was conducted according to the guidance outlined in Making Endangered Species Act Determinations of Effect for Individual or Grouped Actions at the Watershed Scale (NOAA Fisheries 1996). The evaluation assessed several baseline indicators of habitat quality and determined whether the proposed action would restore, maintain, or degrade existing baseline conditions at the action area and watershed level. Table 8 shows the results of this analysis. In general, the environmental baseline conditions within the action area are degraded. As indicated in Table 8, most of the indicators of environmental condition are not properly functioning, or are functioning at risk, at both the action area and watershed scales. There is little functioning estuarine or intertidal habitat within the action area because of the extent of historical development. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Table 8. Overview of Environmental Baseline Conditions at Action Area and Watershed Scales Diagnostic/Pathway Indicators Baseline Environmental Conditions Effects of Project Activities Water Quality Temperature NPF Maintain Sediment/Turbidity PF Maintain Chemical Contamination/Nutrients PF Maintain Habitat Access Physical Barriers PF Maintain Habitat Elements Substrate NPF Maintain Large Woody Debris PF Maintain Pool Frequency NPF Maintain Pool Quality NPF Maintain Off-Channel Habitat NPF Maintain Refugia NPF Maintain Channel Conditions/Dynamics Width/Depth Ratio NA Maintain Shoreline Condition NPF Maintain Floodplain Connectivity NPF Maintain Flow/Hydrology Change in Peak/Base Flows NPF Maintain Increase in Drainage Network NPF Maintain Watershed Conditions Road Density and Location NPF Maintain Disturbance History NPF Maintain Riparian Reserves PF Maintain Notes: NPF-Not Properly Functioning; PF=Properly Functioning; NA-Not Applicable 6.1 WATER QUALITY 6.1.1 Water Temperature King County data indicate surficial temperatures in Lake Washington near the project site may exceed 16 degrees C from July to October, the optimal salmon habitat temperature threshold. Water temperatures in Lake Washington also exceed bull trout spawning and rearing criterion of 12 degrees C during the summer months (King County 2017). Within the action area and watershed, baseline conditions for water temperature are determined to be not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 6.1.2 Sediment/Turbidity Sediments within the action area in Lake Washington are predominantly fine-grained, organically enriched material. The average level of turbidity within Lake Washington within the action area is low, based on King County Major Lakes Monitoring Data (King County 2020). Within the action area and watershed scales, baseline conditions for sediment and turbidity are determined to be properly functioning. Changes in turbidity from construction activities, such as pile removal and vibratory pile driving, will be temporary and localized and will employ appropriate BMPs, such as the use of a silt curtain, to further minimize turbidity during construction. The proposed action will maintain this indicator at both the action area and watershed scales. 6.1.3 Chemical Contamination/Nutrients Water quality is not a limiting factor in Lake Washington based on correspondence addressing sampling data for two dredging projects near the area that found no exceedances of Sediment Management Standards (Fox, D., U.S. Army Corps of Engineers, Dredge Materials Management Office, pers. comm. with R. Stuart, Amec Foster Wheeler, May 16, 2012). Additionally, Ecology’s Water Quality Atlas Map does not identify any contaminants as present within the action area. Within the action area and watershed, baseline conditions for chemical and nutrient contamination are determined to be properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. The project activities will have no measurable long-term effects on chemical contamination or nutrient loading within Lake Washington, and BMPs will be sufficient to ensure that the project does not result in any contaminant releases. 6.2 HABITAT ACCESS 6.2.1 Physical Barriers There are no barriers to fish migration within the action area. For this reason, within the action area, baseline conditions for physical barriers are determined to be properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. The proposed activities will not pose a significant barrier to fish passage at any range of flow at either the action area or the watershed scale. 6.3 HABITAT ELEMENTS 6.3.1 Substrate Sedimentation in the lake has altered the substrate within the portion of the action area. According to the Lake Washington Subarea Chapter (Greater Lake Washington Technical Committee 2001), removal of forest cover accompanying continuing urbanization has resulted in increases in sedimentation and erosion. Therefore, within the action area, as well as at the watershed scale, baseline conditions for substrate are determined to be not properly functioning. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 The proposed action will maintain this indicator at both the action area and watershed scales in the long term. 6.3.2 Large Woody Debris Lake Washington shorelines contain low volumes of LWD. LWD has historically been removed from Lake Washington (Greater Lake Washington Technical Committee 2001). Any LWD input to the action area comes from the riparian vegetation along the lake, and LWD is present along the inlet that exists under the existing bridge. Thus, within the action area, baseline conditions for LWD are determined to be properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any impacts to riparian vegetation or habitat and will not affect the opportunity for future recruitment. 6.3.3 Pool Frequency There is very little to no pool habitat within the action area in Lake Washington. Therefore, within the action area, baseline conditions for pool frequency are determined to be not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. 6.3.4 Pool Quality There is very little to no pool habitat within the action area in Lake Washington. Therefore, within the action area, baseline conditions for pool quality are determined to be not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. 6.3.5 Off-Channel Habitat There is an off-channel inlet of Lake Washington under the existing bridge. Off- channel habitats have largely been eliminated over time on Lake Washington. Baseline conditions for off-channel habitat are properly functioning within the action area. The proposed action will maintain this indicator at both the action area and watershed scales. The proposed activities will not result in any impacts to off-channel habitat at either the action area or watershed scale. 6.3.6 Refugia The shoreline within the action area consists of hardened and developed shoreline. Riparian habitat along Lake Washington generally consists of deciduous trees and is limited. Vegetation at the top of the bank generally consists of native and non-native plants, including western red cedar, western larch, bigleaf maple, western flowering dogwood (Cornus nuttallii), salal, creeping buttercup, black huckleberry, and Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Himalayan blackberry. There are no side channels present within the action area. Baseline conditions for refugia within the action area and watershed scales are not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales. The proposed activities will not result in any impacts to the quality or quantity of refugia at either the action area or watershed scale. 6.4 CHANNEL CONDITIONS AND DYNAMICS 6.4.1 Width/Depth Ratio This channel condition applies to rivers, not lakes. This indicator is determined to be not applicable at the action area and watershed scales. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. 6.4.2 Streambank Condition Most of the shoreline of Lake Washington in the action area has been armored and developed (Greater Lake Washington Technical Committee 2001). The indicator for streambank condition within the action area is not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any significant impacts to streambank condition at either the action area or watershed scale. 6.4.3 Floodplain Connectivity There is little natural floodplain habitat within the action area. Historical development and shoreline armoring have led to a condition where most of the terrestrial portion of the action area is completely removed from any floodplain. Conditions are similar throughout the watershed (Greater Lake Washington Technical Committee 2001). Therefore, within the action area and at the watershed scale, floodplain connectivity is determined to be not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any impacts to floodplain connectivity within the action area or watershed scale. 6.5 FLOW/HYDROLOGY 6.5.1 Change in Peak/Base Flows Lake Washington is a natural lake but a series of locks have altered the flow and hydrology of the system to maintain lake elevations. Therefore, within the action area and at the watershed scale, change in peak/base flows are determined to be not properly functioning. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any impacts to peak/base flows within the action area or at the watershed scale. 6.5.2 Increase in Drainage Network Stormwater and surface water runoff is high because of development of the surrounding area, which has led to increased inputs to Lake Washington. There are two wetlands within the action area that store water flows from the river (WSP 2020). Therefore, within the action area and at the watershed scale, an increase in drainage network is determined to be properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any impacts to the drainage network within the action area or at the watershed scale. 6.6 WATERSHED CONDITIONS 6.6.1 Road Density and Location In general, road density surrounding the action area is high because of urban development. Therefore, the indicator for road density and location at both the action area and watershed is not properly functioning. The proposed action will maintain this indicator at both the action area and watershed in the long term. 6.6.2 Disturbance History Disturbance levels within the action area are above the threshold for proper functioning because of urban development. The shoreline has been historically altered and armored throughout the action area. The indicator for disturbance history within the action area is not properly functioning. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. The proposed activities will not result in any significant amount of disturbance at either the action area or the watershed scale. 6.6.3 Riparian Reserves In general, riparian vegetation adjacent to the action area is composed of deciduous and coniferous trees. Riparian habitat in the action area is somewhat limited because of development but still maintains processes to keep the aquatic ecosystem functioning properly. This indicator is determined to be properly functioning at the action area and watershed scales. The proposed action will maintain this indicator at both the action area and watershed scales in the long term. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 6.7 PATHWAYS AND INDICATORS SPECIFIC TO BULL TROUT ONLY The USFWS provides a matrix of pathways and indicators specific to bull trout. The proposed action will not affect these indicators significantly; therefore, they are not addressed in detail here. The specific indicators are as follows. Subpopulation size Growth and survival Life history diversity and isolation Persistence and genetic integrity Integration of species and habitat conditions The proposed action will maintain all of these indicators at both the action area and watershed scales in the long term. It is possible that bull trout may be present when in-water work is being conducted, but bull trout are likely not present within the action area for significant periods. The proposed activities will have no measurable effect on any of the indicators of proper functioning condition for bull trout habitat. 7.0 EFFECTS OF THE ACTION 7.1 DIRECT EFFECTS Direct effects are the direct or immediate impacts of the proposed action to federally listed species and their habitat. This section addresses potential direct effects that listed species and critical habitats could experience because of the proposed action and the likely response to each potential direct effect. 7.1.1 Water Quality In-water and overwater work activities associated with pile repairs and riprap placement have the potential for direct water-quality impacts. Construction debris can enter the waterway during construction activities. There is also slight potential for leaks and spills of fuel, hydraulic fluids, lubricants, and other chemicals from equipment and storage containers associated with the project. Discharge of vehicle and equipment wash water, etc., could also add pollutants that could enter the water. The contractor will be required to provide and implement impact minimization measures and BMPs, including the preparation of an SPCC plan (see Section 2.3). Additional BMPs have been included to avoid any potential impacts from hazardous materials. These BMPs include inspecting construction equipment daily to ensure there are no leaks of hydraulic fluids, fuel, lubricants, or other petroleum products and locating temporary material and equipment staging areas above the OHWM of the action area waterbody and outside environmentally sensitive areas. The following ESA-listed species and designated critical habitat have the potential to be exposed to the direct effects of temporarily decreased water quality conditions that could occur within the action area during project construction. Puget Sound ESU Chinook salmon and designated critical habitat Puget Sound DPS steelhead and designated critical habitat Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Puget Sound DPS bull trout critical habitat During the in-water work period, foraging juveniles and migrating adult salmon, steelhead, and bull trout could be present within the action area. These species, if present during construction, would likely be feeding and would not be present within the action area for any significant period. It is possible that migrating adult and/or rearing juvenile salmon, steelhead, and bull trout could be present within the action area and could be exposed to temporarily decreased water quality conditions, such as potential debris contamination. The geographic extent and duration of any potential short-term decreases in water quality conditions are expected to be limited to within 150 feet of the work area, and the BMPs implemented for the proposed action (including the implementation of an SPCC plan) will be sufficient to minimize any effects. 7.1.2 Noise The project has the potential to generate low levels of underwater noise associated with conducting the proposed maintenance and repair activities. The standard construction equipment that will be required includes an air hammer and pile driver used to conduct the repairs. Because most of the work will be conducted overwater and in the dry, the project is not expected to measurably elevate underwater noise. This project involves the use of crane barges on the river. The levels of terrestrial noise that will be generated will be minimal and are not expected to be elevated significantly above the ambient noise levels at the site. Ambient noise levels at the site are approximated at 70 decibels, based on traffic volume and speed on I-405 adjacent to the site (WSDOT 2018). No measurable or significant effects related to terrestrial or underwater noise are anticipated from project activities. 7.1.3 Direct Habitat Impacts The proposed maintenance and repair activities will occur within the footprint of the existing facilities and will not result in any increase in benthic impacts or overwater coverage within the action area. There will be no expansion of the project footprint, and previously impacted areas will be repaired. The replacement of riprap into the water behind the timber facing will be the only direct impact on habitat. 7.2 INDIRECT EFFECTS Indirect effects are defined as those effects that are caused by or result from the proposed action that are later in time but still reasonably certain to occur. The proposed action will not result in any increase in capacity or any other indirect effects that could affect ESA-listed species. The effects of the proposed action will be limited to those direct effects associated with the maintenance and repair activities. 7.3 EFFECTS FROM INTERDEPENDENT AND INTERRELATED ACTIONS Interdependent actions are defined as those actions having no independent utility apart from the proposed action (50 Code of Federal Regulations [CFR] §402-02). Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Interdependent actions are typically “because of” the proposed action. Interrelated actions are defined as those actions that are part of a larger action and depend on the larger action for their justification (50 CFR §402-02). Interrelated actions are typically “associated with” the proposed action. Actions associated with the proposed action include maintenance repairs to an existing pedestrian bridge and the placement of riprap at the base of the trestle. These actions will take place within the footprint of the existing pedestrian bridge and the existing shoreline armoring. The effects of the proposed action are limited to those direct effects associated with the maintenance and repair activities. There are no interdependent and interrelated effects associated with this maintenance activity. 7.4 EFFECTS DETERMINATIONS FOR LISTED SPECIES AND DESIGNATED CRITICAL HABITAT Based on the description of the proposed action and the analysis provided in this document, Table 9 lists the effects determinations for ESA-listed species and species proposed for listing, while Table 10 shows the effects determinations for designated critical habitats. A summary description of how these effects determinations were reached for each species and critical habitat follows the tables. Table 9. Effects Determinations Summary – Species Species ESU/DPS Federal Status Effect Determination Chinook Salmon Puget Sound ESU Threatened NLTAA Steelhead Puget Sound DPS Threatened NLTAA Bull Trout Coastal Puget Sound DPS Threatened NLTAA Notes: LTAA = Likely to Adversely Affect; NLTAA = Not Likely to Adversely Affect; NE = No Effect; ESU = Evolutionarily Significant Unit; DPS = Distinct Population Segment Table 10. Effects Determinations Summary - Critical Habitats Species ESU/DPS Critical Habitat Status Effect Determination Chinook Salmon Puget Sound ESU Designated NLTAA Steelhead Puget Sound DPS Designated NE Bull Trout Puget Sound DPS Designated NLTAA NLTAA = Not Likely to Adversely Affect; NE = No Effect; NA = Not Applicable; ESU = Evolutionarily Significant Unit; DPS = Distinct Population Segment Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 7.4.1 Species 7.4.1.1 Puget Sound ESU Chinook Salmon, Puget Sound DPS Steelhead, and Puget Sound DPS Bull Trout The proposed action “may affect, but is not likely to adversely affect” Puget Sound ESU Chinook salmon, Puget Sound DPS steelhead, and Puget Sound bull trout. This determination is warranted based on the following. The project will require work below the OHWM within waters of Lake Washington, which represents migratory habitat for adult and juvenile salmon, steelhead, and bull trout. The proposed action will conduct work below the OHWM of Lake Washington during the in-water work period when salmon, steelhead, and bull trout could potentially be migrating or foraging in the area. Salmonid use of the action area is limited to moderate-quality foraging and migration habitat. No freshwater rearing or spawning habitat occurs within the action area. Even under normal, non-project conditions, migrating adult and juvenile salmonids likely move through the action area rapidly. The project has the potential to result in temporarily impaired water quality within the action area. The impact minimization and BMPs (described in Section 2.3), including work within the in-water work window, will be sufficient to reduce the potential for adverse effects to an insignificant level. The levels of terrestrial noise that will be generated will be de minimis, and are not expected to be elevated significantly above the ambient noise levels at the site. 7.4.2 Critical Habitats 7.4.2.1 Designated Salmon and Steelhead Critical Habitat Critical habitat has been designated for Puget Sound ESU Chinook salmon and occurs within the action area. The effects determination is that the proposed project “may affect, but is not likely to adversely affect” these critical habitats. This determination is warranted based on the following rationale. The proposed action will require work below the OHWM within waters of Lake Washington, which has been designated critical habitat for the ESU/DPS of salmon listed above. The waters within the action area provide adequate migratory, water quality, and food base PCEs of critical habitat for the ESU/DPS of salmon. The project has the potential to result in temporarily impaired water quality within the action area. Impacts to water quality associated with the proposed action will be temporary in nature and will not result in any measurable or significant effects to any PCEs of critical habitat. The impact minimization and BMPs (described in Section 2.3), Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 including work within the in-water work window, will be sufficient to ensure that temporarily impaired water quality conditions do not adversely affect any PCE of critical habitat for salmon or bull trout. The proposed action has the potential to result in temporarily elevated underwater noise levels during construction; however, the levels of terrestrial and underwater noise that will be generated will be minimal and are not expected to be elevated significantly above the ambient noise levels at the site. Because most of the work will be conducted overwater and in the dry, the project is not expected to measurably elevate underwater noise. The proposed action will not result in any benthic impacts. 8.0 REFERENCES Behnke, R.J. 1992. Native trout of western North America. American Fisheries Society Monograph 6. Bethesda, Maryland. City of Seattle. 2007. Seattle Biological Evaluation. Seattle, WA. 1 May 2007. Federal Transit Administration (FTA). 2006. Transit Noise and Vibration Impact Assessment Guidance FTA-VA-90-1003-06. May 2006. Greater Lake Washington Technical Committee. 2001. Draft Reconnaissance Assessment – Habitat Factors that Contribute to the Decline of Salmonids: Lake Washington Subarea Chapter. HTI (Hydroacoustic Technology, Inc.). 2013. Underwater Noise Sound Levels Associated with Impact Pile Driving at the Boeing North Bridge Replacement Project on the Cedar River (HTI Project 3559). Hydroacoustic Technology, Inc., Seattle, Washington. Kerwin, J. 2001. Salmon and Steelhead Habitat Limiting Factors Report for the Cedar – Sammamish Basin (Water Resource Inventory Area 8). Washington Conservation Commission, Olympia. King County. 2017. Lake Buoy Data. Water and Land Services, King County, Seattle, Washington. https://green2.kingcounty.gov/lake-buoy/ accessed 12 May 2020. King County. 2020. King County Water Quality Monitoring. https://green2.kingcounty.gov/streamsdata/watershedinfo.aspx?Locator=0438#s pecialstudies. Accessed May 6, 2020. King County. 2020. King County Major Lakes Monitoring Data. https://green2.kingcounty.gov/lakes/Query.aspx. Accessed May 18, 2020. Laughlin, J. 2011. Port Townsend Dolphin Timber Pile Removal – Vibratory Pile Monitoring Technical Memorandum. Memorandum addressed to Rick Huey. Washington State Department of Transportation. January 03, 2011. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Lower Columbia Fish Recovery Board (LCFRB). 2004. Lower Columbia Salmon Recovery and Fish and Wildlife Subbasin Plan, Volume I—Regional Plan. Myers, J.M., R.G. Kope, G.J. Bryant, D. Teel, L.J. Lierheimer, T.C. Wainwright, W.S. Grant, F.W. Waknitz, K. Neely, S.T. Lindley, and R.S. Waples. 1998. Status Review of Chinook Salmon from Washington, Idaho, Oregon, and California. U.S. Department of Commerce, NOAA Tech. Memo. NMFS- NWFSC-35, 443pp. National Oceanic and Atmospheric Administration (NOAA). 2016. Steelhead Trout (Onchorynchus mykiss) http://www.fisheries.noaa.gov/pr/species/fish/steelhead-trout.html. Accessed June 20, 2017. National Oceanic and Atmospheric Administration Fisheries Service (NOAA Fisheries). 2020. ESA Salmon Listings, available at https://archive.fisheries.noaa.gov/wcr/publications/gis_maps/maps/salmon_steel head/critical_habitat/wcr_salmonid_ch_esa_july2016.pdf. Accessed April 14, 2020. National Oceanic and Atmospheric Administration Fisheries Service (NOAA Fisheries). 2011. 5-Year Review: Summary & Evaluation of Puget Sound Chinook, Hood Canal Summer Chum, Puget Sound Steelhead. National Oceanic and Atmospheric Administration Fisheries Service (NOAA Fisheries). 1996. Making Endangered Species Act Determinations of Effect for Individual or Grouped Actions at the Watershed Scale. Rieman, B.E. and J.D. McIntyre. 1993. Demographic and habitat requirements for the conservation of bull trout Salvelinus confluentus. USDA Forest Service Intermountain Research Station, General Technical Report INT-302, Ogden, UT. Smith, Carol J. 2003. Salmon and Steelhead Habitat Limiting Factors Water Resource Inventory Areas 3 and 4, the Skagit and Samish Basins. Washington State Conservation Commission. Lacey, WA. U.S. Fish and Wildlife Service (USFWS). 2019. U.S. Fish and Wildlife Trust Resources List, Endangered Species Act Species List. http://ecos.fws.gov/ipac/ April 13, 2020. Washington State Department of Fish and Wildlife (WDFW). 2020. Priority Habitats and Species List—PHS on the Web. http://wdfw.wa.gov/mapping/phs/ Accessed April 14, 2020. Washington State Department of Fish and Wildlife (WDFW). 2020a. WDFW SalmonScape database. Accessed online at http://wdfw.wa.gov/mapping/salmonscape/index.html. Accessed April 14, 2019. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 Washington State Department of Transportation (WSDOT). 2018. Biological Assessment Preparation – Advanced Training Manual Version 02-2018. February 2018. Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September 2020 Renton, Washington Page 8 of 29 9.0 LIST OF ACRONYMS AND ABBREVIATIONS BE biological evaluation BMP best management practice CFR Code of Federal Regulations DPS distinct population segment Ecology Washington State Department of Ecology ESA Endangered Species Act ESU evolutionarily significant unit FR Federal Register FTA Federal Transit Administration LTAA likely to adversely affect LWD large woody debris MLLW mean lower low water NE no effect NLTAA not likely to adversely affect NOAA National Oceanic and Atmospheric Administration NPF not properly functioning OHWM ordinary high water mark PCE primary constituent element PF properly functioning PHS Priority Habitat and Species SPCC spill prevention, control, and countermeasures USACE U.S. Army Corps of Engineers USFWS U.S. Fish and Wildlife Service WAC Washington Administrative Code WDFW Washington Department of Fish and Wildlife WSDOT Washington State Department of Transportation Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September2020 Renton, Washington Appendix C – Essential Fish Habitat Page C-2 of 2 APPENDIX C ESSENTIAL FISH HABITAT Public Law 104-297, the Sustainable Fisheries Act of 1996, amended the Magnuson-Stevens Fishery Conservation and Management Act (Magnuson-Stevens Act) to establish new requirements for Essential Fish Habitat (EFH) descriptions in federal fishery management plans and to require federal agencies to consult with the National Oceanic and Atmospheric Administration (NOAA) Fisheries Service (NOAA Fisheries) on activities that may adversely affect EFH. The Magnuson-Stevens Act requires consultation for all federal agency actions that may adversely affect EFH. The action area is within designated EFH for Pacific salmon. EFH for Pacific salmon in fresh water includes all streams, lakes, ponds, wetlands, and other currently viable bodies of fresh water and the substrates within those waterbodies accessible to Pacific salmon. Activities occurring above impassable barriers that are likely to adversely affect EFH below impassable barriers are subject to the consultation provisions of the Magnuson- Stevens Act. The Magnuson-Stevens Act requires consultation for all federal agency actions that may adversely affect EFH. EFH consultation with NOAA Fisheries is required by federal agencies undertaking, permitting, or funding activities that may adversely affect EFH, regardless of its location. Under Section 305(b)(4) of the Magnuson-Stevens Act, NOAA Fisheries is required to provide EFH conservation and enhancement recommendations to federal and state agencies for actions that adversely affect EFH. Wherever possible, NOAA Fisheries uses existing interagency coordination processes to fulfill EFH consultations with federal agencies. For the proposed action, this goal is being met by incorporating EFH consultation into the Endangered Species Act (ESA) Section 7 consultation, as represented by this Biological Evaluation. Location As stated above, the proposed activities will occur on an existing pedestrian bridge over Lake Washington in Renton, Washington. The action area is within Water Resource Inventory Area 8, Cedar-Sammamish watershed, and is located within Hydraulic Unit Code 17110012 (see Section 2.0 for a complete description of the action area). Description of Project Activities The purpose of the project is to replace an existing timber pile-supported timber trestle pedestrian bridge with a new single-span steel bridge with grated decking. The pedestrian bridge is located in Gene Coulon Memorial Beach Park in Renton, Washington. A 2019 condition assessment indicated severe deterioration of wood pilings supporting the bridge. The assessment recommended replacement of the existing timber bridge with a new structure.The proposed action is described in detail in Section 2.0 of this Biological Evaluation. Potential Adverse Effects of Project Activities The proposed action has the potential to affect EFH for Pacific salmon species. Specific elements of the proposed action that could potentially impact EFH are summarized here (see Section 7.0 for a detailed analysis of the potential effects of the project). Biological Evaluation WSP USA, 30900024.000 City of Renton Gene Coulon Park Trestle Bridge Replacement September2020 Renton, Washington Appendix C – Essential Fish Habitat Page C-2 of 2 Direct effects of the proposed action will be largely temporary in nature. Temporary impacts to habitat will be limited to the potential for temporarily impaired water quality conditions and temporarily elevated noise levels within the action area. Minimization Measures and Best Management Practices Conservation/minimization measures and best management practices (BMPs) that will be implemented by the project are discussed in Section 2.3 in the Biological Evaluation. All work below the mean higher high water of Lake Washington will be conducted during the in- water work window for waters of Lake Washington (between July 16 and December 31), which avoids the peak run timing for most runs of salmon. Implementation of these minimization measures and BMPs will be sufficient to ensure that any impacts to EFH are temporary and insignificant, and do not affect any functional component of EFH for Pacific salmon species. Conclusions In accordance with the EFH requirements of the Magnuson-Stevens Act, it has been determined that the project “will not adversely affect” EFH for Pacific salmon species. The proposed action has incorporated minimization and avoidance measures, and BMPs intended to avoid and/or minimize potential effects to habitat. Water quality and noise impacts that may result during construction will be temporary and will result in no significant effects to any functional component of EFH for Pacific salmon species. APPENDIX D GEOTECHNICAL REPORT Geotechnical & Earthquake Engineering Consultants GEOTECHNICAL REPORT PEDESTRIAN BRIDGE REPLACEMENT GENE COULON MEMORIAL PARK Renton, Washington PROJECT NO. 20-046 January 20, 2021 Prepared for: City of Renton January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 i PanGEO, Inc. TABLE OF CONTENTS PROJECT DESCRIPTION ......................................................................................................... 1 SITE DESCRIPTION ................................................................................................................... 1 GEOLOGY .................................................................................................................................... 2 FIELD EXPLORATIONS ........................................................................................................... 2 SUBSURFACE CONDITIONS ................................................................................................... 2 SOILS ........................................................................................................................................... 3 GROUNDWATER ........................................................................................................................... 3 CONCLUSIONS AND RECOMMENDATIONS ...................................................................... 3 EARTHQUAKE FAULTING ............................................................................................................. 3 SEISMIC DESIGN PARAMETERS .................................................................................................... 4 LIQUEFACTION POTENTIAL .......................................................................................................... 4 STRUCTURE FOUNDATION RECOMMENDATIONS .......................................................................... 4 Driven Pipe Piles .................................................................................................................... 4 Lateral Pile Resistance & Group Reduction Factors ............................................................. 5 ADDITIONAL SERVICES.......................................................................................................... 6 LIMITATIONS AND UNIFORMITY OF CONDITIONS ...................................................... 6 CLOSURE ...................................................................................................................................... 7 REFERENCES .............................................................................................................................. 8 LIST OF FIGURES Figure 1 Vicinity Map Figure 2 Site and Exploration Plan Figure 3 16” and 18” Steel Pipe Pile Capacities APPENDIX A: FIELD EXPLORATIONS January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 1 GEOTECHNICAL REPORT PEDESTRIAN BRIDGE REPLACEMENT GENE COULON MEMORIAL PARK RENTON, WASHINGTON PROJECT DESCRIPTION This report summarizes geotechnical recommendations for the replacement of the existing timber trestle pedestrian bridge at the north end of Gene Coulon Memorial Park in Renton, Washington (see Figure 1). The existing bridge is a part of a pedestrian walkway that goes north from the main portion of the park along the lake shoreline (see Figure 2). The existing timber pile supported bridge is approximately 100-foot long, 12 feet wide with steel railings and a treated timber deck. The structure is supported on 8 bents and each bent is supported on 6 timber piles. Because of significant degradation of the piles, the City will replace the existing bridge with a new, steel, single span structure. SITE DESCRIPTION Gene Coulon Memorial Park is located on an elongated strip of land at the southeast corner of Lake Washington, between a railroad right-of-way on the east and Lake Washington on the west. The relatively wide southern portion of the park includes a swimming beach, boat launch ramp, playground, restaurants, and paved parking. In contrast, the northern portion of the park, which contains the pedestrian bridge, is located on a relatively narrow strip of land (see Plates 1 and 2). In addition to providing pedestrian access, the bridge also provides access to City owned maintenance vehicles and emergency vehicles. Plate 1. Looking north at the trestle bridge which spans an inlet of Lake Washington. Plate 2. Looking north at the south abutment of the bridge. January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 2 GEOLOGY The subsurface geology along the southeastern shore of Lake Washington is not well mapped. The area lies within the U.S.G.S. 1:24,000 Mercer Island Quadrangle, and while the Mercer Island portion of the quadrangle is mapped in detail, the mapping does not extend to the eastern mainland shore. The Washington State Geologic Information Portal 1:100,000 scale map suggests that Gene Coulon Memorial Park is underlain by fill. This mapping is supported by the Geologic Map of the Renton Quadrangle (Mullineaux, 1965) though this map also shows a sliver of Cedar River alluvium along the east side of the lowland area. In general, we anticipate that the site is underlain by fill overlying lakebed sediments. FIELD EXPLORATIONS Subsurface conditions at the bridge site were explored with two borings (PG-1 and PG-2) that were drilled at the bridge abutments at the locations shown on Figure 2. The borings were drilled using a track mounted hollow stem auger drill rig owned and operated by Geologic Drill Partners of Bellevue, Washington. The drill was equipped with 6-inch outside diameter hollow stem augers. Soil samples were obtained at 2½-foot depth intervals in the top 10 feet, and at 5- foot intervals thereafter. Sampling was conducted in general accordance with Standard Penetration Test (SPT) sampling methods (ASTM test method D-1586) in which the samples were obtained using a 2-inch outside diameter split-spoon sampler. The sampler was driven 18” into the soil using a 140-pound weight freely falling 30 inches. The number of blows required for each 6-inch increment of sampler penetration was recorded. The number of blows required to achieve the last 12 inches of sample penetration is defined as the SPT N-value. The N-value provides an empirical measure of the relative density of cohesionless soil, or the relative consistency of fine-grained soils. An engineering geologist from PanGEO was on site to coordinate field activities, monitor the auger advancement, and log the materials retrieved from the sampler. Logs of the borings are presented in Appendix A, and the underlying subsurface conditions are summarized below. SUBSURFACE CONDITIONS The soil conditions encountered in the site explorations are consistent with the anticipated geologic units as summarized below. January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 3 SOILS Unit 1 Fill: Material interpreted as fill was encountered in both borings from the ground surface to a depth of approximately 6 feet. The surficial fill consisted mainly of very loose, brown to gray, silty, fine to medium sand, with a trace of sub-angular gravel. Unit 2 Lake Deposits: Beneath the fill, the borings encountered a layer loose to medium dense, gray to dark brown, silty, fine to medium sand and sandy silt, with a trace of gravel. Some woody debris and other organic material were encountered in this stratum in PG-2. This unit extended to a depth of 19.5 feet in both borings. Unit 3 Alluvial Deposits: Alluvial soils consisting of medium dense, brown, fine to medium, sandy gravel, with a trace of silt were encountered below the lake deposits in both borings. The alluvial deposits were most likely sourced from the Cedar River. This unit extends to a depth of roughly 29.5 feet below the current surface grade. Unit 4 Pre-Fraser Deposits: The bearing layer at depth consists of hard and very dense strata that are interpreted as pre-Fraser beds. In PG-1, this unit consists of hard, gray to brown, clayey silt with a trace of sand. In PG-2, the pre-Fraser material consists of a 5-foot bed of hard or very dense, non-plastic to low plastic, sandy silt with gravel and a trace of clay. Below this bed is layer of very dense, gray, fine to medium sand, with a trace of gravel and silt. GROUNDWATER Groundwater at the site is controlled by the water surface in Lake Washington that typically fluctuates annually by 2 feet between about elevations 16.8 and 18.6 feet (NAVD 88). The groundwater levels observe in the borings were generally consistent with the lake level. CONCLUSIONS AND RECOMMENDATIONS EARTHQUAKE FAULTING Coulon Park lies south of the Seattle Fault Zone which extends easterly, just north of Mercer Island. The inferred southernmost strand of the Seattle Fault is located about 3 km north of Gene Coulon Memorial Park. In our opinion, fault rupture beneath the park is unlikely in a future earthquake. January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 4 SEISMIC DESIGN PARAMETERS In accordance with AASHTO (2019) and the WSDOT Seismic Design Manual (WSDOT 2019), the following provides ground acceleration design parameters (% g) corresponding to an event having a 7 percent probability of exceedance in 1,000 years for the site which is underlain by Site Class D soils. AS SDS SD1 0.41 0.96 0.27 B/C Boundary 0.49 0.98 0.56 Site Class D LIQUEFACTION POTENTIAL The upper 20 to 30 feet of soils encountered in the site borings are susceptible to liquefaction in the design earthquake as based on simplified screening contained in section 6.4.2 of the Geotechnical Design Manual (WSDOT, 2020). Consequently, the pedestrian bridge will require pile support and the seismic design of the bridge will need to consider reduced lateral support as a result of liquefaction. Due to the flat topography in the vicinity of the site, the potential for liquefaction-induced lateral spreading is low. STRUCTURE FOUNDATION RECOMMENDATIONS Driven Pipe Piles We recommend supporting the pedestrian bridge on 16 or 18-inch diameter pipe piles that develop end bearing in the underlying very dense glacial soils at depths below 20 to 30 feet. Because the bearing stratum was encountered at different depths at the abutments, load capacity graphs were developed for closed end piles driven at each abutment as illustrated in Figure 3. Pile installations should be performed in accordance with Section 6-05 of the WSDOT Standard Specifications (WSDOT, 2019). The LRFD resistance factors recommended for design correspond to 0.55 and 1.0 for Strength and Extreme states. Piles should be driven to achieve required resistance in accordance with Article 6-05.3(12) of the WSDOT Standard Specifications. January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 5 Lateral Pile Resistance & Group Reduction Factors Recommended parameters for analysis of lateral pile resistance using the program LPILETM are presented below. Note that the soil layers are referenced to the general mudline elevation at the location of the reference piles. The reference elevations in the tables are the existing ground surface elevations. Using the parameters for the liquefied conditions in conjunction with the full seismic load from the design earthquake will result in an excessively conservative design as liquefaction typically develops near the end of the earthquake ground shaking where ground accelerations are well below the peak values. Accordingly, we suggest using the liquefied parameters with a seismic load corresponding to 25% of the peak load, unless otherwise specified in the code used for the facility design. Recommended p-y Curve Parameters Trestle Bridge (Borings B-1 & B-2) STATIC ANALYSIS Soil Layer Bottom Elev. (NAVD88) Soil Unit Soil Type (KSOIL) Effective Unit Weight of Soil Cohesion Axial Strain Friction Angle Modulus of Subgrade Reaction (ft.) (pci) (pcf) (psi) (psf) (deg) (pci) 1 18 Fill Sand 0.031 53 -- -- -- 29 10 2 4 Lake Deposits Sand 0.034 58 -- -- -- 30 30 3 20 Alluvium Sand 0.034 58 -- -- -- 33 60 4 50+ Glacial Sand 0.036 63 -- -- -- 38 115 LIQUEFIED ANALYSIS 1 18 Fill Sand 0.031 53 -- -- -- 7 5 2 4 Lake Deposits Sand 0.034 58 -- -- -- 7 10 3 20 Alluvium Sand 0.034 58 -- -- -- 10 16 4 50+ Glacial Sand 0.036 63 -- -- -- 38 115 Group Reduction Factors for Lateral Analyses Pile Spacing (1) Reduction Factor for Load Applied Parallel to Pile Row Reduction Factor for Load Applied Perpendicular to Pile Row(2) 5D 0.8 1.0 4D 0.65 0.9 3D 0.5 0.8 2.5D 0.4 0.7 (1) As a function of Pile diameter, D. (2) For a single row of piles, if two or more rows of piles are used, the reduction factors for load applied parallel to the pile row should be used. January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 6 ADDITIONAL SERVICES Construction support services, including review of pile driving submittals and field observation of pile installation, are beyond the scope of geotechnical design services under which this report was prepared. A supplemental scope and budget would be required for PanGEO to provide construction support services and is recommended to confirm that construction is consistent with the design and construction recommendations provided herein. LIMITATIONS AND UNIFORMITY OF CONDITIONS PanGEO, Inc. (PanGEO) prepared this report for WSP, and the City of Renton. The recommendations contained in this report are based on a site reconnaissance, a subsurface exploration program, review of existing, pertinent subsurface information, and our understanding of the project. Variations in soil conditions may exist between the locations of the explorations and the actual conditions underlying the site. The nature and extent of soil variations may not be evident until construction occurs. If any soil conditions are encountered at the site that are different from those described in this report, PanGEO should be immediately notified to review the applicability of the recommendations presented herein. Additionally, PanGEO should also be notified to review the applicability of these recommendations if there are any changes in the project scope. This report may be used only by the client and for the purposes stated, within a reasonable time from its issuance. Land use, site conditions (both off and on-site), or other factors including advances in our understanding of applied science, may change over time and could materially affect our findings. Therefore, this report should not be relied upon after 36 months from its issuance. PanGEO should be notified if the project is delayed by more than 36 months from the date of this report so that the applicability of the conclusions and recommendations presented herein may be evaluated considering the time lapse. Within the limitations of scope, schedule, and budget, PanGEO engages in the practice of geotechnical engineering and endeavors to perform its services in accordance with generally accepted professional principles and practices at the time this report and/or its contents was prepared. No warranty, express or implied, is made. The scope of PanGEO’s work did not include environmental assessments or evaluations regarding the presence or absence of wetlands January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 7 or hazardous or toxic substances in the soil, surface water or groundwater at this site. PanGEO does not practice or consult in the field of safety engineering. PanGEO does not direct the contractor’s operations and cannot be held responsible for the safety of personnel other than our own on the site; the safety of others is the responsibility of the contractor. It is the client’s responsibility to see that all parties to this project, including the designer, contractor, subcontractors, etc., are made aware of this report in its entirety. The use of information contained in this report for bidding purposes shall be at the contractor’s sole option and risk. Any party other than the client who wishes to use this report shall notify PanGEO of such intended use and for permission to copy this report. Based on the intended use of the report, PanGEO may require that additional work be performed and that an updated report be reissued. Noncompliance with any of these requirements will release PanGEO from any liability resulting from the use this report. CLOSURE PanGEO is pleased to support the WSP design team and the City of Renton with geotechnical engineering recommendations. Please call any questions regarding this report. W Paul Grant, P.E. Principal Geotechnical Engineer January 20, 2021 Project No. 20-046 20-046 Bridge Geotechnical Report 1.20.21 PanGEO, Inc. 8 REFERENCES AASHTO, 2019. LRFD Bridge Design Specifications, 7th edition, American Association of State Highway and Transportation Officials. Washington, D.C. WSDOT, 2020. Geotechnical Design Manual (GDM), M 46-03, Washington State Department of Transportation WSDOT, 2019. Standard Specifications for Road, Bridge and Municipal Construction, M 41-10, Washington State Department of Transportation FIGURES VICINITY MAP 20-046 1 Reference: ESRI ArcGIS Terrain Map Not to Scale PROJECT SITE Gene Coulon Park Bridge Replacement 1201 Lake Washington Boulevard NorthRenton, Washington Renton Figure No.Project No. Gene Coulon Park Bridge Replacement 1201 Lk Washington Blvd N Renton, WashingtonFile.ppt 4/28/2020(10:12 AM) TEA20-046 2 SITE AND EXPLORATION PLAN N PG-1 Legend: PanGEO Boring Approximate Scale 1”:40’ PG-2 Base Map From City of Renton GIS Figure No.Project No. Gene Coulon Park Bridge Replacement 1201 Lk Washington Blvd N Renton, WashingtonFile.ppt 12/28/2020(10:12 AM) TEA20-046 16” & 18” Steel Pipe Pile Capacities 3 Notes 1.Open end piles may run 5 to 10 feet deeper for similar capacities. 2.All piles to be driven to minimum tip elevations of -5 feet (South Abutment) and -10 Feet (North Abutment) APPENDIX A FIELD EXPLORATIONS MOISTURE CONTENT 2-inch OD Split Spoon, SPT (140-lb. hammer, 30" drop) 3.25-inch OD Spilt Spoon (300-lb hammer, 30" drop) Non-standard penetration test (see boring log for details) Thin wall (Shelby) tube Grab Rock core Vane Shear Dusty, dry to the touch Damp but no visible water Visible free water Terms and Symbols for Boring and Test Pit Logs Density SILT / CLAY GRAVEL (<5% fines) GRAVEL (>12% fines) SAND (<5% fines) SAND (>12% fines) Liquid Limit < 50 Liquid Limit > 50 Breaks along defined planes Fracture planes that are polished or glossy Angular soil lumps that resist breakdown Soil that is broken and mixed Less than one per foot More than one per foot Angle between bedding plane and a planenormaltocoreaxis Very Loose Loose Med. Dense Dense Very Dense SPT N-values Approx. Undrained Shear Strength (psf) <4 4 to 10 10 to 30 30 to 50 >50 <2 2 to 4 4 to 8 8 to 15 15 to 30 >30 SPT N-values Units of material distinguished by color and/orcomposition frommaterial unitsabove andbelow Layers of soil typically 0.05 to 1mm thick, max. 1 cm Layer of soil that pinches out laterally Alternating layers of differing soil material Erratic, discontinuous deposit of limited extent Soil with uniform color and composition throughout Approx. Relative Density (%) Gravel Layered: Laminated: Lens: Interlayered: Pocket: Homogeneous: Highly Organic Soils #4 to #10 sieve (4.5 to 2.0 mm) #10 to #40 sieve (2.0 to 0.42 mm) #40 to #200 sieve (0.42 to 0.074 mm) 0.074 to 0.002 mm <0.002 mm UNIFIED SOIL CLASSIFICATION SYSTEM MAJOR DIVISIONS GROUP DESCRIPTIONS Notes: MONITORING WELL <15 15 - 35 35 - 65 65 - 85 85 - 100 GW GP GM GC SW SP SM SC ML CL OL MH CH OH PT TEST SYMBOLS 50%or more passing #200 sieve Groundwater Level at time of drilling (ATD)Static Groundwater Level Cement / Concrete Seal Bentonite grout / seal Silica sand backfill Slotted tip Slough <250 250 - 500 500 - 1000 1000 - 2000 2000 - 4000 >4000 RELATIVE DENSITY / CONSISTENCY Fissured: Slickensided: Blocky: Disrupted: Scattered: Numerous: BCN: COMPONENT DEFINITIONS Dry Moist Wet 1. Soil exploration logs contain material descriptions based on visual observation and field tests using a systemmodified from the Uniform Soil Classification System (USCS). Where necessary laboratory tests have beenconducted (as noted in the "Other Tests" column), unit descriptions may include a classification. Please refer to thediscussions in the report text for a more complete description of the subsurface conditions. 2. The graphic symbols given above are not inclusive of all symbols that may appear on the borehole logs.Other symbols may be used where field observations indicated mixed soil constituents or dual constituent materials. COMPONENT SIZE / SIEVE RANGE COMPONENT SIZE / SIEVE RANGE SYMBOLS Sample/In Situ test types and intervals Silt and Clay Consistency SAND / GRAVEL Very Soft Soft Med. Stiff Stiff Very Stiff Hard Phone: 206.262.0370 Bottom of BoringBoulder: Cobbles: Gravel Coarse Gravel: Fine Gravel: Sand Coarse Sand: Medium Sand: Fine Sand: Silt Clay > 12 inches 3 to 12 inches 3 to 3/4 inches 3/4 inches to #4 sieve Atterberg Limit Test Compaction Tests Consolidation Dry Density Direct Shear Fines Content Grain Size Permeability Pocket Penetrometer R-value Specific Gravity Torvane Triaxial Compression Unconfined Compression Sand 50% or more of the coarsefraction passing the #4 sieve.Use dual symbols (eg. SP-SM)for 5% to 12% fines. for In Situ and Laboratory Testslisted in "Other Tests" column. 50% or more of the coarsefraction retained on the #4sieve. Use dual symbols (eg.GP-GM) for 5% to 12% fines. DESCRIPTIONS OF SOIL STRUCTURES Well-graded GRAVEL Poorly-graded GRAVEL Silty GRAVEL Clayey GRAVEL Well-graded SAND Poorly-graded SAND Silty SAND Clayey SAND SILT Lean CLAY Organic SILT or CLAY Elastic SILT Fat CLAY Organic SILT or CLAY PEAT ATT Comp Con DD DS %F GS Perm PP R SG TV TXC UCC Figure A-1 Approximately 3 inches of topsoil. Very loose, gray to brown, silty, fine to medium SAND, trace gravel(sub-angular); moist. [FILL]. Very loose, silty SAND, trace gravel (sub-angular); moist. Slight decrease in gravel content in sample S-2. Becomes wet at captip. Loose, gray, silty, fine SAND to fine sandy SILT, trace gravel, trace iron oxide staining; wet; slight decrease in sand content with depth. [LAKE DEPOSITS]. No recovery in sample S-3. Bentonite slurry added downhole to aid drilling. Loose, gray, silty fine SAND to fine sandy SILT, trace gravel, trace ironoxide staining; wet; slight decrease in sand content with depth. Loose, brown, silty fine SAND to fine sandy SILT, trace clay, trace ironoxide staining; wet. Medium dense, brown, fine to medium sandy GRAVEL, trace silt; wet. [ALLUVIUM]. Slight increase in sand content with depth in sample S-7. Hard, gray to brown, clayey SILT, trace sand, trace iron oxide staining; wet; non- to low-plastic, wavy laminations. [PRE-FRASIER DEPOSITS - UNDIFFERENTIATED - Qpf]. S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 212 322 301 422 243 71012 899 121419 Remarks: Boring drilled using a Bobcat-mounted mini track drill rig. Standard Penetration Test (SPT) sampler driven with a 140 lb. safety hammer. Hammer operated with a ropeand cathead mechanism. 0 5 10 15 20 25 30 The stratification lines represent approximate boundaries. The transition may be gradual. MATERIAL DESCRIPTION Figure A-2Other TestsSample No.Completion Depth: Date Borehole Started: Date Borehole Completed: Logged By: Drilling Company:Depth, (ft)Rose Wall Renovation, Gene Coulon Park 20-046 1201 Lake Washington Boulevard North, Renton, WA Northing: 47.511139, Easting: -122.203649 41.5ft 4/8/20 4/8/20 C. Venturino Geologic Drill Partners Sheet 1 of 2 Project: Job Number: Location: Coordinates:SymbolSample TypeBlows / 6 in.24.0ft HSA SPT Surface Elevation: Top of Casing Elev.: Drilling Method: Sampling Method: LOG OF TEST BORING PG-1 N-Value 0 Moisture LL 50 PL RQD Recovery 100 Hard, gray to brown, clayey SILT, trace sand, trace iron oxide staining;wet; non- to low-plastic, wavy laminations. (Continued) Slight increase in iron oxide staining in sample S-9. Trace amounts of gravel observed in sample S-10. Slight increase inclay content with depth. Boring terminated approximately 41.5 feet below ground surface. Groundwater observed at about 6.25 feet at the time of drilling. S-9 S-10 131821 81421 Remarks: Boring drilled using a Bobcat-mounted mini track drill rig. Standard Penetration Test (SPT) sampler driven with a 140 lb. safety hammer. Hammer operated with a ropeand cathead mechanism. 35 40 45 50 55 60 65 The stratification lines represent approximate boundaries. The transition may be gradual. MATERIAL DESCRIPTION Figure A-2Other TestsSample No.Completion Depth: Date Borehole Started: Date Borehole Completed: Logged By: Drilling Company:Depth, (ft)Rose Wall Renovation, Gene Coulon Park 20-046 1201 Lake Washington Boulevard North, Renton, WA Northing: 47.511139, Easting: -122.203649 41.5ft 4/8/20 4/8/20 C. Venturino Geologic Drill Partners Sheet 2 of 2 Project: Job Number: Location: Coordinates:SymbolSample TypeBlows / 6 in.24.0ft HSA SPT Surface Elevation: Top of Casing Elev.: Drilling Method: Sampling Method: LOG OF TEST BORING PG-1 N-Value 0 Moisture LL 50 PL RQD Recovery 100 Approximately 2.5 inches of asphalt pavement. Loose, brown to gray, silty fine to medium SAND, trace gravel; moist,occasional organics. [FILL]. Loose, brown to gray. Very loose, trace organic material (wood debris), trace iron oxidestaining; wet; increase in silt content with depth. Loose, dark brown, silty fine to medium SAND, trace gravel, trace organic material (wood debris); wet. [LAKE DEPOSITS]. Wood debris in cap tip of sample S-3. Loose, dark brown, trace gravel, trace organic material (wood debris);wet. Bentonite slurry added downhole to aid drilling. Slight increase in gravel in sample S-5. Hard, gray, fine sandy SILT with gravel, trace clay, trace iron oxide staining; wet; non- to low-plastic. [PRE-FRASIER DEPOSITS - UNDIFFERENTIATED - Qpf]. Very dense, gray, fine to medium SAND, trace gravel, trace silt; wet; rock in cap tip may have inflated SPT blow count. Driller notedapproximately 3 feet of heave. [PRE-FRASIER DEPOSITS - UNDIFFERENTIATED - Qpf]. No recovery in sample S-8. S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 344 221 100 223 7119 121619 111640 50/3 Remarks: Boring drilled using a Bobcat-mounted mini track drill rig. Standard Penetration Test (SPT) sampler driven with a 140 lb. safety hammer. Hammer operated with a ropeand cathead mechanism. 0 5 10 15 20 25 30 The stratification lines represent approximate boundaries. The transition may be gradual. MATERIAL DESCRIPTION Figure A-3Other TestsSample No.Completion Depth: Date Borehole Started: Date Borehole Completed: Logged By: Drilling Company:Depth, (ft)Rose Wall Renovation, Gene Coulon Park 20-046 1201 Lake Washington Boulevard North, Renton, WA Northing: 47.510842, Easting: -122.203462 35.3ft 4/8/20 4/8/20 C. Venturino Geologic Drill Partners Sheet 1 of 2 Project: Job Number: Location: Coordinates:SymbolSample TypeBlows / 6 in.24.0ft HSA SPT Surface Elevation: Top of Casing Elev.: Drilling Method: Sampling Method: LOG OF TEST BORING PG-2 N-Value 0 Moisture LL 50 PL RQD Recovery 100 >> Very dense, gray, fine to medium SAND, trace gravel, trace silt; wet;rock in cap tip may have inflated SPT blow count. Driller notedapproximately 3 feet of heave. (Continued) Driller noted approximately 6 feet of heave. Material in sample S-9likely not representative of depth. Boring terminated approximately 35.25 feet below grade due to drilling refusal. Groundwater was encountered at about 6 feet at the time of drilling. S-9 50/3 Remarks: Boring drilled using a Bobcat-mounted mini track drill rig. Standard Penetration Test (SPT) sampler driven with a 140 lb. safety hammer. Hammer operated with a ropeand cathead mechanism. 35 40 45 50 55 60 65 The stratification lines represent approximate boundaries. The transition may be gradual. MATERIAL DESCRIPTION Figure A-3Other TestsSample No.Completion Depth: Date Borehole Started: Date Borehole Completed: Logged By: Drilling Company:Depth, (ft)Rose Wall Renovation, Gene Coulon Park 20-046 1201 Lake Washington Boulevard North, Renton, WA Northing: 47.510842, Easting: -122.203462 35.3ft 4/8/20 4/8/20 C. Venturino Geologic Drill Partners Sheet 2 of 2 Project: Job Number: Location: Coordinates:SymbolSample TypeBlows / 6 in.24.0ft HSA SPT Surface Elevation: Top of Casing Elev.: Drilling Method: Sampling Method: LOG OF TEST BORING PG-2 N-Value 0 Moisture LL 50 PL RQD Recovery 100 >> APPENDIX E SITE IMPROVEMENT BOND QUANTITY WORKSHEET Planning Division |1055 South Grady Way – 6 th Floor | Renton, WA 98057 (425) 430-7200 Date Prepared: Name: PE Registration No: Firm Name: Firm Address: Phone No. Email Address: Project Name:Project Owner: CED Plan # (LUA):Phone: CED Permit # (U):Address: Site Address: Street Intersection:Addt'l Project Owner: Parcel #(s):Phone: Address: Clearing and grading greater than or equal to 5,000 board feet of timber? Yes/No:NO Water Service Provided by: If Yes, Provide Forest Practice Permit #:Sewer Service Provided by: SITE IMPROVEMENT BOND QUANTITY WORKSHEET PROJECT INFORMATION CITY OF RENTON CITY OF RENTON 1Select the current project status/phase from the following options: For Approval - Preliminary Data Enclosed, pending approval from the City; For Construction - Estimated Data Enclosed, Plans have been approved for contruction by the City; Project Closeout - Final Costs and Quantities Enclosed for Project Close-out Submittal Phone Engineer Stamp Required (all cost estimates must have original wet stamp and signature) Clearing and Grading Utility Providers N/A Project Location and Description Project Owner Information Gene Coulon Memorial Beach Park Trestle Bridge Replacement Renton, WA 98057 052305-9010 City of Renton LUA21-000024, SME 425 430-6571 04-10-21 Prepared by: FOR CONSTRUCTIONProject Phase 1 garth.nelson@wsp.com Garth Nelson 50226 WSP USA 33301 Ninth Ave South, Suite 300 Federal Way, WA 206-431-2388 1201 Lake Washington BLVD North, Renton, WA 1055 S. Grady Way Additional Project OwnerStreet Intersection ######## AddressAbbreviated Legal Description: GL 2 SD SEC LY WLY OF NP RR R/W TGW BLKS D & E LK WASH SH LDS ADD TGW POR GL 1 SEC 06-23-05 LY WLY OF NP RR R/W & SH LDS ADJ LESS POR PLATTED CD HILLMANS LK WASH GARDEN OF EDEN #1 City, State, Zip Page 2 of 14 Ref 8-H Bond Quantity Worksheet SECTION I PROJECT INFORMATION Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Unit Reference #Price Unit Quantity Cost Backfill & compaction-embankment ESC-1 6.50$CY Check dams, 4" minus rock ESC-2 SWDM 5.4.6.3 80.00$Each Catch Basin Protection ESC-3 35.50$Each Crushed surfacing 1 1/4" minus ESC-4 WSDOT 9-03.9(3)95.00$CY Ditching ESC-5 9.00$CY Excavation-bulk ESC-6 2.00$CY Fence, silt ESC-7 SWDM 5.4.3.1 1.50$LF 532 798.00 Fence, Temporary (NGPE)ESC-8 1.50$LF Geotextile Fabric ESC-9 2.50$SY Hay Bale Silt Trap ESC-10 0.50$Each Hydroseeding ESC-11 SWDM 5.4.2.4 0.80$SY Interceptor Swale / Dike ESC-12 1.00$LF Jute Mesh ESC-13 SWDM 5.4.2.2 3.50$SY Level Spreader ESC-14 1.75$LF Mulch, by hand, straw, 3" deep ESC-15 SWDM 5.4.2.1 2.50$SY Mulch, by machine, straw, 2" deep ESC-16 SWDM 5.4.2.1 2.00$SY Piping, temporary, CPP, 6"ESC-17 12.00$LF Piping, temporary, CPP, 8"ESC-18 14.00$LF Piping, temporary, CPP, 12"ESC-19 18.00$LF Plastic covering, 6mm thick, sandbagged ESC-20 SWDM 5.4.2.3 4.00$SY Rip Rap, machine placed; slopes ESC-21 WSDOT 9-13.1(2)45.00$CY Rock Construction Entrance, 50'x15'x1'ESC-22 SWDM 5.4.4.1 1,800.00$Each Rock Construction Entrance, 100'x15'x1'ESC-23 SWDM 5.4.4.1 3,200.00$Each Sediment pond riser assembly ESC-24 SWDM 5.4.5.2 2,200.00$Each Sediment trap, 5' high berm ESC-25 SWDM 5.4.5.1 19.00$LF Sed. trap, 5' high, riprapped spillway berm section ESC-26 SWDM 5.4.5.1 70.00$LF Seeding, by hand ESC-27 SWDM 5.4.2.4 1.00$SY Sodding, 1" deep, level ground ESC-28 SWDM 5.4.2.5 8.00$SY Sodding, 1" deep, sloped ground ESC-29 SWDM 5.4.2.5 10.00$SY TESC Supervisor ESC-30 110.00$HR Water truck, dust control ESC-31 SWDM 5.4.7 140.00$HR Unit Reference #Price Unit Quantity Cost EROSION/SEDIMENT SUBTOTAL:798.00 SALES TAX @ 10%79.80 EROSION/SEDIMENT TOTAL:877.80 (A) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR EROSION & SEDIMENT CONTROL Description No. (A) WRITE-IN-ITEMS Page 3 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.a EROSION_CONTROL Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost GENERAL ITEMS Backfill & Compaction- embankment GI-1 6.00$CY Backfill & Compaction- trench GI-2 9.00$CY Clear/Remove Brush, by hand (SY)GI-3 1.00$SY Bollards - fixed GI-4 240.74$Each Bollards - removable GI-5 452.34$Each Clearing/Grubbing/Tree Removal GI-6 10,000.00$Acre Excavation - bulk GI-7 2.00$CY Excavation - Trench GI-8 5.00$CY Fencing, cedar, 6' high GI-9 20.00$LF Fencing, chain link, 4'GI-10 38.31$LF Fencing, chain link, vinyl coated, 6' high GI-11 20.00$LF Fencing, chain link, gate, vinyl coated, 20'GI-12 1,400.00$Each Fill & compact - common barrow GI-13 25.00$CY Fill & compact - gravel base GI-14 27.00$CY 8 216.00 Fill & compact - screened topsoil GI-15 39.00$CY Gabion, 12" deep, stone filled mesh GI-16 65.00$SY Gabion, 18" deep, stone filled mesh GI-17 90.00$SY Gabion, 36" deep, stone filled mesh GI-18 150.00$SY Grading, fine, by hand GI-19 2.50$SY Grading, fine, with grader GI-20 2.00$SY Monuments, 3' Long GI-21 250.00$Each Sensitive Areas Sign GI-22 7.00$Each Sodding, 1" deep, sloped ground GI-23 8.00$SY Surveying, line & grade GI-24 850.00$Day Surveying, lot location/lines GI-25 1,800.00$Acre Topsoil Type A (imported)GI-26 28.50$CY Traffic control crew ( 2 flaggers )GI-27 120.00$HR Trail, 4" chipped wood GI-28 8.00$SY Trail, 4" crushed cinder GI-29 9.00$SY Trail, 4" top course GI-30 12.00$SY Conduit, 2"GI-31 5.00$LF 120 600.00 Wall, retaining, concrete GI-32 55.00$SF Wall, rockery GI-33 15.00$SF SUBTOTAL THIS PAGE:816.00 (B)(C)(D)(E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) Page 4 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) ROAD IMPROVEMENT/PAVEMENT/SURFACING AC Grinding, 4' wide machine < 1000sy RI-1 30.00$SY AC Grinding, 4' wide machine 1000-2000sy RI-2 16.00$SY AC Grinding, 4' wide machine > 2000sy RI-3 10.00$SY AC Removal/Disposal RI-4 35.00$SY 60 2,100.00 Barricade, Type III ( Permanent )RI-5 56.00$LF Guard Rail RI-6 30.00$LF Curb & Gutter, rolled RI-7 17.00$LF Curb & Gutter, vertical RI-8 12.50$LF Curb and Gutter, demolition and disposal RI-9 18.00$LF Curb, extruded asphalt RI-10 5.50$LF Curb, extruded concrete RI-11 7.00$LF Sawcut, asphalt, 3" depth RI-12 1.85$LF 20 37.00 Sawcut, concrete, per 1" depth RI-13 3.00$LF Sealant, asphalt RI-14 2.00$LF Shoulder, gravel, 4" thick RI-15 15.00$SY Sidewalk, 4" thick RI-16 38.00$SY Sidewalk, 4" thick, demolition and disposal RI-17 32.00$SY Sidewalk, 5" thick RI-18 41.00$SY Sidewalk, 5" thick, demolition and disposal RI-19 40.00$SY Sign, Handicap RI-20 85.00$Each Striping, per stall RI-21 7.00$Each Striping, thermoplastic, ( for crosswalk )RI-22 3.00$SF Striping, 4" reflectorized line RI-23 0.50$LF Additional 2.5" Crushed Surfacing RI-24 3.60$SY HMA 1/2" Overlay 1.5"RI-25 14.00$SY HMA 1/2" Overlay 2"RI-26 18.00$SY HMA Road, 2", 4" rock, First 2500 SY RI-27 28.00$SY 60 1,680.00 HMA Road, 2", 4" rock, Qty. over 2500SY RI-28 21.00$SY HMA Road, 4", 6" rock, First 2500 SY RI-29 45.00$SY HMA Road, 4", 6" rock, Qty. over 2500 SY RI-30 37.00$SY HMA Road, 4", 4.5" ATB RI-31 38.00$SY Gravel Road, 4" rock, First 2500 SY RI-32 15.00$SY Gravel Road, 4" rock, Qty. over 2500 SY RI-33 10.00$SY Thickened Edge RI-34 8.60$LF SUBTOTAL THIS PAGE:3,817.00 (B)(C)(D)(E) Page 5 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) PARKING LOT SURFACING No. 2" AC, 2" top course rock & 4" borrow PL-1 21.00$SY 2" AC, 1.5" top course & 2.5" base course PL-2 28.00$SY 4" select borrow PL-3 5.00$SY 1.5" top course rock & 2.5" base course PL-4 14.00$SY SUBTOTAL PARKING LOT SURFACING: (B)(C)(D)(E) LANDSCAPING & VEGETATION No. Street Trees LA-1 Median Landscaping LA-2 Right-of-Way Landscaping LA-3 Wetland Landscaping LA-4 SUBTOTAL LANDSCAPING & VEGETATION: (B)(C)(D)(E) TRAFFIC & LIGHTING No. Signs TR-1 Street Light System ( # of Poles)TR-2 Traffic Signal TR-3 Traffic Signal Modification TR-4 SUBTOTAL TRAFFIC & LIGHTING: (B)(C)(D)(E) WRITE-IN-ITEMS SUBTOTAL WRITE-IN ITEMS: STREET AND SITE IMPROVEMENTS SUBTOTAL:4,633.00 SALES TAX @ 10%463.30 STREET AND SITE IMPROVEMENTS TOTAL:5,096.30 (B)(C)(D)(E) Page 6 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost DRAINAGE (CPE = Corrugated Polyethylene Pipe, N12 or Equivalent) For Culvert prices, Average of 4' cover was assumed. Assume perforated PVC is same price as solid pipe.) Access Road, R/D D-1 26.00$SY * (CBs include frame and lid) Beehive D-2 90.00$Each Through-curb Inlet Framework D-3 400.00$Each CB Type I D-4 1,500.00$Each CB Type IL D-5 1,750.00$Each CB Type II, 48" diameter D-6 2,300.00$Each for additional depth over 4'D-7 480.00$FT CB Type II, 54" diameter D-8 2,500.00$Each for additional depth over 4'D-9 495.00$FT CB Type II, 60" diameter D-10 2,800.00$Each for additional depth over 4'D-11 600.00$FT CB Type II, 72" diameter D-12 6,000.00$Each for additional depth over 4'D-13 850.00$FT CB Type II, 96" diameter D-14 14,000.00$Each for additional depth over 4'D-15 925.00$FT Trash Rack, 12"D-16 350.00$Each Trash Rack, 15"D-17 410.00$Each Trash Rack, 18"D-18 480.00$Each Trash Rack, 21"D-19 550.00$Each Cleanout, PVC, 4"D-20 150.00$Each Cleanout, PVC, 6"D-21 170.00$Each Cleanout, PVC, 8"D-22 200.00$Each Culvert, PVC, 4"D-23 10.00$LF Culvert, PVC, 6"D-24 13.00$LF Culvert, PVC, 8"D-25 15.00$LF Culvert, PVC, 12"D-26 23.00$LF Culvert, PVC, 15"D-27 35.00$LF Culvert, PVC, 18"D-28 41.00$LF Culvert, PVC, 24"D-29 56.00$LF Culvert, PVC, 30"D-30 78.00$LF Culvert, PVC, 36"D-31 130.00$LF Culvert, CMP, 8"D-32 19.00$LF Culvert, CMP, 12"D-33 29.00$LF SUBTOTAL THIS PAGE: (B)(C)(D)(E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Quantity Remaining (Bond Reduction)(B)(C) Page 7 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Quantity Remaining (Bond Reduction)(B)(C) DRAINAGE (Continued) Culvert, CMP, 15"D-34 35.00$LF Culvert, CMP, 18"D-35 41.00$LF Culvert, CMP, 24"D-36 56.00$LF Culvert, CMP, 30"D-37 78.00$LF Culvert, CMP, 36"D-38 130.00$LF Culvert, CMP, 48"D-39 190.00$LF Culvert, CMP, 60"D-40 270.00$LF Culvert, CMP, 72"D-41 350.00$LF Culvert, Concrete, 8"D-42 42.00$LF Culvert, Concrete, 12"D-43 48.00$LF Culvert, Concrete, 15"D-44 78.00$LF Culvert, Concrete, 18"D-45 48.00$LF Culvert, Concrete, 24"D-46 78.00$LF Culvert, Concrete, 30"D-47 125.00$LF Culvert, Concrete, 36"D-48 150.00$LF Culvert, Concrete, 42"D-49 175.00$LF Culvert, Concrete, 48"D-50 205.00$LF Culvert, CPE Triple Wall, 6"D-51 14.00$LF Culvert, CPE Triple Wall, 8"D-52 16.00$LF Culvert, CPE Triple Wall, 12"D-53 24.00$LF Culvert, CPE Triple Wall, 15"D-54 35.00$LF Culvert, CPE Triple Wall, 18"D-55 41.00$LF Culvert, CPE Triple Wall, 24"D-56 56.00$LF Culvert, CPE Triple Wall, 30"D-57 78.00$LF Culvert, CPE Triple Wall, 36"D-58 130.00$LF Culvert, LCPE, 6"D-59 60.00$LF Culvert, LCPE, 8"D-60 72.00$LF Culvert, LCPE, 12"D-61 84.00$LF Culvert, LCPE, 15"D-62 96.00$LF Culvert, LCPE, 18"D-63 108.00$LF Culvert, LCPE, 24"D-64 120.00$LF Culvert, LCPE, 30"D-65 132.00$LF Culvert, LCPE, 36"D-66 144.00$LF Culvert, LCPE, 48"D-67 156.00$LF Culvert, LCPE, 54"D-68 168.00$LF SUBTOTAL THIS PAGE: (B)(C)(D)(E) Page 8 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Quantity Remaining (Bond Reduction)(B)(C) DRAINAGE (Continued) Culvert, LCPE, 60"D-69 180.00$LF Culvert, LCPE, 72"D-70 192.00$LF Culvert, HDPE, 6"D-71 42.00$LF Culvert, HDPE, 8"D-72 42.00$LF Culvert, HDPE, 12"D-73 74.00$LF Culvert, HDPE, 15"D-74 106.00$LF Culvert, HDPE, 18"D-75 138.00$LF Culvert, HDPE, 24"D-76 221.00$LF Culvert, HDPE, 30"D-77 276.00$LF Culvert, HDPE, 36"D-78 331.00$LF Culvert, HDPE, 48"D-79 386.00$LF Culvert, HDPE, 54"D-80 441.00$LF Culvert, HDPE, 60"D-81 496.00$LF Culvert, HDPE, 72"D-82 551.00$LF Pipe, Polypropylene, 6"D-83 84.00$LF Pipe, Polypropylene, 8"D-84 89.00$LF Pipe, Polypropylene, 12"D-85 95.00$LF Pipe, Polypropylene, 15"D-86 100.00$LF Pipe, Polypropylene, 18"D-87 106.00$LF Pipe, Polypropylene, 24"D-88 111.00$LF Pipe, Polypropylene, 30"D-89 119.00$LF Pipe, Polypropylene, 36"D-90 154.00$LF Pipe, Polypropylene, 48"D-91 226.00$LF Pipe, Polypropylene, 54"D-92 332.00$LF Pipe, Polypropylene, 60"D-93 439.00$LF Pipe, Polypropylene, 72"D-94 545.00$LF Culvert, DI, 6"D-95 61.00$LF Culvert, DI, 8"D-96 84.00$LF Culvert, DI, 12"D-97 106.00$LF Culvert, DI, 15"D-98 129.00$LF Culvert, DI, 18"D-99 152.00$LF Culvert, DI, 24"D-100 175.00$LF Culvert, DI, 30"D-101 198.00$LF Culvert, DI, 36"D-102 220.00$LF Culvert, DI, 48"D-103 243.00$LF Culvert, DI, 54"D-104 266.00$LF Culvert, DI, 60"D-105 289.00$LF Culvert, DI, 72"D-106 311.00$LF SUBTOTAL THIS PAGE: (B)(C)(D)(E) Page 9 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Quantity Remaining (Bond Reduction)(B)(C) Specialty Drainage Items Ditching SD-1 9.50$CY Flow Dispersal Trench (1,436 base+)SD-3 28.00$LF French Drain (3' depth)SD-4 26.00$LF Geotextile, laid in trench, polypropylene SD-5 3.00$SY Mid-tank Access Riser, 48" dia, 6' deep SD-6 2,000.00$Each Pond Overflow Spillway SD-7 16.00$SY Restrictor/Oil Separator, 12"SD-8 1,150.00$Each Restrictor/Oil Separator, 15"SD-9 1,350.00$Each Restrictor/Oil Separator, 18"SD-10 1,700.00$Each Riprap, placed SD-11 42.00$CY Tank End Reducer (36" diameter)SD-12 1,200.00$Each Infiltration pond testing SD-13 125.00$HR Permeable Pavement SD-14 Permeable Concrete Sidewalk SD-15 Culvert, Box __ ft x __ ft SD-16 SUBTOTAL SPECIALTY DRAINAGE ITEMS: (B)(C)(D)(E) STORMWATER FACILITIES (Include Flow Control and Water Quality Facility Summary Sheet and Sketch) Detention Pond SF-1 Each Detention Tank SF-2 Each Detention Vault SF-3 Each Infiltration Pond SF-4 Each Infiltration Tank SF-5 Each Infiltration Vault SF-6 Each Infiltration Trenches SF-7 Each Basic Biofiltration Swale SF-8 Each Wet Biofiltration Swale SF-9 Each Wetpond SF-10 Each Wetvault SF-11 Each Sand Filter SF-12 Each Sand Filter Vault SF-13 Each Linear Sand Filter SF-14 Each Proprietary Facility SF-15 Each Bioretention Facility SF-16 Each SUBTOTAL STORMWATER FACILITIES: (B)(C)(D)(E) Page 10 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Quantity Remaining (Bond Reduction)(B)(C) WRITE-IN-ITEMS (INCLUDE ON-SITE BMPs) WI-1 WI-2 WI-3 WI-4 WI-5 WI-6 WI-7 WI-8 WI-9 WI-10 WI-11 WI-12 WI-13 WI-14 WI-15 SUBTOTAL WRITE-IN ITEMS: DRAINAGE AND STORMWATER FACILITIES SUBTOTAL: SALES TAX @ 10% DRAINAGE AND STORMWATER FACILITIES TOTAL: (B)(C)(D)(E) Page 11 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Connection to Existing Watermain W-1 2,000.00$Each 1 2,000.00 Ductile Iron Watermain, CL 52, 4 Inch Diameter W-2 50.00$LF Ductile Iron Watermain, CL 52, 6 Inch Diameter W-3 56.00$LF Ductile Iron Watermain, CL 52, 8 Inch Diameter W-4 60.00$LF 132 7,920.00 Ductile Iron Watermain, CL 52, 10 Inch Diameter W-5 70.00$LF Ductile Iron Watermain, CL 52, 12 Inch Diameter W-6 80.00$LF Gate Valve, 4 inch Diameter W-7 500.00$Each Gate Valve, 6 inch Diameter W-8 700.00$Each Gate Valve, 8 Inch Diameter W-9 800.00$Each Gate Valve, 10 Inch Diameter W-10 1,000.00$Each Gate Valve, 12 Inch Diameter W-11 1,200.00$Each Fire Hydrant Assembly W-12 4,000.00$Each Permanent Blow-Off Assembly W-13 1,800.00$Each Air-Vac Assembly, 2-Inch Diameter W-14 2,000.00$Each Air-Vac Assembly, 1-Inch Diameter W-15 1,500.00$Each Compound Meter Assembly 3-inch Diameter W-16 8,000.00$Each Compound Meter Assembly 4-inch Diameter W-17 9,000.00$Each Compound Meter Assembly 6-inch Diameter W-18 10,000.00$Each Pressure Reducing Valve Station 8-inch to 10-inch W-19 20,000.00$Each WATER SUBTOTAL:9,920.00 SALES TAX @ 10%992.00 WATER TOTAL:10,912.00 (B)(C)(D)(E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR WATER Quantity Remaining (Bond Reduction) (B)(C) Page 12 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.d WATER Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 CED Permit #:######## Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No.Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Clean Outs SS-1 1,000.00$Each Grease Interceptor, 500 gallon SS-2 8,000.00$Each Grease Interceptor, 1000 gallon SS-3 10,000.00$Each Grease Interceptor, 1500 gallon SS-4 15,000.00$Each Side Sewer Pipe, PVC. 4 Inch Diameter SS-5 80.00$LF Side Sewer Pipe, PVC. 6 Inch Diameter SS-6 95.00$LF Sewer Pipe, PVC, 8 inch Diameter SS-7 105.00$LF Sewer Pipe, PVC, 12 Inch Diameter SS-8 120.00$LF Sewer Pipe, DI, 8 inch Diameter SS-9 115.00$LF Sewer Pipe, DI, 12 Inch Diameter SS-10 130.00$LF Manhole, 48 Inch Diameter SS-11 6,000.00$Each Manhole, 54 Inch Diameter SS-13 6,500.00$Each Manhole, 60 Inch Diameter SS-15 7,500.00$Each Manhole, 72 Inch Diameter SS-17 8,500.00$Each Manhole, 96 Inch Diameter SS-19 14,000.00$Each Pipe, C-900, 12 Inch Diameter SS-21 180.00$LF Outside Drop SS-24 1,500.00$LS Inside Drop SS-25 1,000.00$LS Sewer Pipe, PVC, ____ Inch Diameter SS-26 Lift Station (Entire System)SS-27 LS SANITARY SEWER SUBTOTAL: SALES TAX @ 10% SANITARY SEWER TOTAL: (B)(C)(D)(E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR SANITARY SEWER Quantity Remaining (Bond Reduction) (B)(C) Page 13 of 14 Ref 8-H Bond Quantity Worksheet SECTION II.e SANITARY SEWER Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 Planning Division |1055 South Grady Way – 6 th Floor | Renton, WA 98057 (425) 430-7200 Date: Name:Project Name: PE Registration No:CED Plan # (LUA): Firm Name:CED Permit # (U): Firm Address:Site Address: Phone No.Parcel #(s): Email Address:Project Phase: Site Restoration/Erosion Sediment Control Subtotal (a) Existing Right-of-Way Improvements Subtotal (b)(b)16,008.30$ Future Public Improvements Subtotal (c)-$ Stormwater & Drainage Facilities (Public & Private) Subtotal (d)(d)-$ (e) (f) Site Restoration Civil Construction Permit Maintenance Bond 3,201.66$ Bond Reduction 2 Construction Permit Bond Amount 3 Minimum Bond Amount is $10,000.00 1Estimate Only - May involve multiple and variable components, which will be established on an individual basis by Development Engineering. 2 The City of Renton allows one request only for bond reduction prior to the maintenance period. Reduction of not more than 70% of the original bond amount, provided that the remaining 30% will cover all remaining items to be constructed. 3 Required Bond Amounts are subject to review and modification by Development Engineering. * Note: The word BOND as used in this document means any financial guarantee acceptable to the City of Renton. ** Note: All prices include labor, equipment, materials, overhead and profit. 206-431-2388 garth.nelson@wsp.com Gene Coulon Memorial Beach Park Trestle Bridge Replacement LUA21-000024, SME 1201 Lake Washington BLVD North, Renton, WA 052305-9010 FOR CONSTRUCTION ######## 33301 Ninth Ave South, Suite 300 Federal Way, WA 24,890.25$ P (a) x 100% SITE IMPROVEMENT BOND QUANTITY WORKSHEET BOND CALCULATIONS 04-10-21 Garth Nelson 50226 WSP USA R ((b x 150%) + (d x 100%)) S (e) x 150% + (f) x 100% Bond Reduction: Existing Right-of-Way Improvements (Quantity Remaining)2 Bond Reduction: Stormwater & Drainage Facilities (Quantity Remaining)2 T (P +R - S) Prepared by:Project Information CONSTRUCTION BOND AMOUNT*/** (prior to permit issuance) EST1 ((b) + (c) + (d)) x 20% -$ MAINTENANCE BOND */** (after final acceptance of construction) 877.80$ 16,008.30$ 24,012.45$ 877.80$ -$ -$ -$ Page 14 of 14 Ref 8-H Bond Quantity Worksheet SECTION III. BOND WORKSHEET Unit Prices Updated: 06/14/2016 Version: 04/26/2017 Printed 04-10-21 APPENDIX F DESIGN DRAWINGS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT 1201 LAKE WASHINGTON BLVD NORTH RENTON, WASHINGTON TACOMA SEATTLE EVERETT BELLINGHAM CANADA OREGON OLYMPIA PACIFIC OCEAN RENTON AREA MAP SCALE: NTS PROJECT LOCATION MAYOR: ARMONDO PAVONE PROJECT LOCATION VICINITY MAP SCALE: NTS LAKE WA S H I N G T O N B L V D N GENE COULON MEMORIAL BEACH PARK PUBLIC DOCKS APPROXIMATE SHORELINE PARK TRAILS 405 HOUSERWAY NJONES AVE NE HIGH AVE NE N 20TH ST ACCESS R O A D ACCESS R O A D SOUTHPORTDR. NNE SUNSETBLVDRENTON CITY COUNCIL: RANDY CORMAN RYAN McIRVIN VALERIE O'HALLORAN RUTH PÉREZ KIM-KHÁNH VĂN ED PRINCE ANGELINA BENEDETTI COMMUNITY SERVICES DEPARTMENT: KELLY BEYMER, COMMUNITY SERVICES ADMINSTRATOR LESLIE BETLACH, PARKS PLANNING AND NATURAL RESOURCES DIRECTOR ALAN J. WYATT, CAPITAL PROJECTS MANAGER RENTON CITY OFCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202TED-42-4202R-420201 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERCOVER SHEET GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT XX-X XX-X X X-X SCALE: LEGEND: WATER SURFACE ELEVATION OR SECTION CUT PLAN, SECTION, DETAIL, OR ELEVATION CALLOUT DRAWING WHERE SECTION, DETAIL, OR ELEVATION IS CALLED FROM PLAN, SECTION, DETAIL, OR ELEVATION XX.XX -YY.YY PILE CUTOFF ELEVATION MIN PILE TIP ELEVATION DRAWING INDEX: WP# NORTH ARROW WORK POINTHORIZONTAL DATUM WASHINGTON STATE PLANE COORDINATE SYSTEM, NORTH ZONE, NAD 83/1991 BASED ON CITY OF RENTON PUBLISHED HORIZONTAL CONTROL FOR THE LOCATED MONUMENTS LISTED BELOW CITY OF RENTON HORIZONTAL CONTROL#1886 N.W. SECTION CORNER, SECTION 5; MONUMENT LOCATED NEAR THE INTERSECTION OF BURNETT & N 28TH PUBLISHED VALUES N:58361.0302 (METERS)N:191472.81 (USFT) E:396532.414 (METERS)E: 1300956.76 (USFT) CITY OF RENTON HORIZONTAL CONTROL#1839 MONUMENT AT THE INTERSECTION OF JONES & 20TH PUBLISHED VALUES N:57570.0496 (METERS)N: 188877.74 (USFT) E:397327.4787 (METERS)E: 1300956.76 (USFT) VERTICAL DATUM NAVD 88 CITY OF RENTON BENCH MARK #1886 ELEVATION=104.72 CITY OF RENTON BENCH MARK #1839 ELEVATION=279.165 ABBREVIATIONS ACI AMERICAN CONCRETE INSTITUTE ACP ASPHALT CONCRETE PAVEMENT AISC AMERICAN INSTITUTE OF STEEL CONSTRUCTION AITC AMERICAN INSTITUTE OF TIMBER CONSTRUCTION API AMERICAN PETROLEUM INSTITUTE APPROX APPROXIMATE AWPA AMERICAN WOOD PROTECTION ASSOCIATION ASTM AMERICAN SOCIETY FOR TESTING AND MATERIALS AWS AMERICAN WELDING SOCIETY BMP BEST MANAGEMENT PRACTICE BOT BOTTOM CIP CAST-IN-PLACE CENTER LINE CLR CLEAR CONC CONCRETE CONN CONNECTION CONT CONTINUOUS CONT'D CONTINUED CRSI CONCRETE REINFORCING STEEL INSTITUTE CY CUBIC YARD DBL DOUBLE DEMO DEMOLITION, DEMOLISH DIP DUCTILE IRON PIPE DIA, Ø DIAMETER EA EACH EL, ELEV ELEVATION EQ EQUAL EXIST EXISTING EXT EXTERIOR FAB FABRICATE FB FLAT BAR FT FEET FRP FIBER REINFORCED POLYMER FL FLAT GALV GALVANIZED GR GRADE HORIZ HORIZONTAL HS HIGH STRENGTH HSS HOLLOW STRUCTURAL SECTION IBC INTERNATIONAL BUILDING CODE IN INCH INT INTERIOR KIP 1,000 POUNDS KSI KIPS PER SQUARE INCH L ANGLE (E.G. L4X4X1/4) LB(S)POUND(S) LF LINEAL FEET LLV LONG LEG VERTICAL LONG LONGITUDINAL MAX MAXIMUM MB MACHINE BOLT MDD MAXIMUM DRY DENSITY MID MIDDLE MIN MINIMUM MJ MECHANICAL JOINT ML MUDLINE NO NUMBER NOM NOMINAL NTS NOT TO SCALE OC ON CENTER OHW ORDINARY HIGH WATER OHWM ORDINARY HIGH WATER MARK OPP OPPOSITE PL PLATE PSF POUNDS PER SQUARE FOOT PSI POUNDS PER SQUARE INCH PVMT PAVEMENT R RADIUS REQ'D REQUIRED REINF REINFORCEMENT ABBREVIATIONS CONT. SCH SCHEDULE SECT SECTION SIM SIMILAR SP,SPA SPACE(S) SS STAINLESS STEEL SQ SQUARE STD STANDARD SYM SYMMETRICAL T&B TOP & BOTTOM TESC TEMPORARY EROSION SEDIMENT CONTROL TYP TYPICAL UNO UNLESS NOTED OTHERWISE W/WITH W/O WITH OUT WCLIB WEST COAST LUMBER INSPECTION BUREAU WL WATER LINE WT WEIGHT WWPI WESTERN WOOD PRESERVERS INSTITUTE VERT VERTICAL XS EXTRA STRONG (E.G., PIPE4X-STRONG) RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:13 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\01_G02.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420202 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERDRAWING INDEX, ABBREVIATIONS AND GENERAL NOTES GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT 405 405 BOAT LAUNCH SOUTHPORT DR NNE SUNSET BLVDLAKE WA S H I N G T O N B L V D N HOUSER WAY NN 20TH ST JONES AVE NE HIGH AVE NE IVARS SEAFOOD BAR GENE COULON MEMORIAL BEACH PARK PUBLIC DOCKS RAILROAD TRACKS, TYP ACCESS RO A D ACCESS R O A D ACCESS ROAD PROJECT LOCATION, SEE CONTRACTOR LAYDOWN AREA, SEE NOTE 2 LAKE WASHINGTONAPPROXIMATE SHORELINE PARK TRAILS PLAN - SITE ACCESS SCALE: NTS 1 G-4 RENTON SAILING CLUB PLANTING AREA SEE DRAWING L-6 RESTROOM TO BE CLOSED, CONTRACTOR TO SUPPLY TEMPORARY FACILITIES NOTES: WAVE BREAK OPTIONAL CONTRACTOR LAYDOWN AREA, SEE NOTE 2 1.COORDINATE MOVEMENT OF ALL CONSTRUCTION BARGES WITH THE CITY PRIOR TO MOVEMENT. SAIL MOORINGS ARE LOCATED BOTH NORTH AND SOUTH OF THE WORK AREA. 2.COORDINATE CONTRACTOR LAYDOWN AREA WITH CITY PRIOR TO MOBILIZATION. 3.MAINTAIN CLEAR AREA FOR EMERGENCY VEHICLE TURNAROUND AND ACCESS IN THE TRAFFIC CIRCLE. 4.SEE CIVIL DRAWINGS FOR LAYDOWN AND RESTORATION REQUIREMENTS. R-420203 RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:13 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\01_G03.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-420250226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERPLAN - EXISTING CONDITIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT 105'-2" BACK TO BACK OF ABUTMENTS TIMBER ABUTMENT, TYP TIMBER PILE, TYP 4x12 TIMBER DECKING PLAN - EXISTING TIMBER TRESTLE SCALE: 1" = 8'feet 16880 scale 8x14 TIMBER PILE CAP, TYP W W OHP SHORE PROTECTION, TYP HANDRAIL PARK TRAIL, TYP CHAIN LINE FENCE 12'-6"±LAKE WASHINGTON OHW OHW OHW OHW CONC FOOTING LEGEND JUNCTION BOX LIGHT POLE UTILITY POLE TREES WATER LINE ORDINARY HIGH WATER LINE OVERHEAD POWER LINE HANDRAIL PARK TRAIL, TYP RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:28 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\01_G04.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420204 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSITE PLAN - EXISTING TIMBER TRESTLE BRIDGE GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT NOTES: PROJECT LOCATION SAILING CLUB FLOAT PUBLIC RESTROOM RAILROAD TRACKS BRIDGE PARK TRAIL, TYP FENCED OFF AREA BOTH SIDES, EXTEND FROM FROM FENCE AT RAILROAD TRACKS TO OHW R11-2B R11-2B R11-4 (SPECIAL) R11-4 (SPECIAL) W20-1 (SPECIAL) PLAN - PEDESTRIAN TRAFFIC CONTROL CONCEPT SCALE: NTS PLANTING AREA LAKE WASHINGTON BLVD N R11-2 MAINTAIN EMERGENCY VEHICLE ACCESS THROUGHOUT TURN AROUND 1.SUBMIT A TRAFFIC CONTROL PLAN TO THE CITY OF RENTON FOR REVIEW AND APPROVAL. 2.CONTROLS SHOWN ARE FOR VEHICULAR AND PEDESTRIAN TRAFFIC. 3.ALL SIGNS SHALL BE FABRICATED PER THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD), AND WSDOT "SIGN FABRICATION MANUAL", M 55-05, LATEST EDITIONS. 4.ALL TYPE III BARRIERS SHALL BE PER WSDOT M 21-01, "STANDARD PLANS FOR ROADS, BRIDGE, AND MUNICIPAL CONSTRUCTION", AUGUST 2018, STANDARD PLAN K-80.20-00. 5.FENCE AT EACH END OF THE PROJECT LOCATION SHALL HAVE A MINIMUM HEIGHT OF 6 FEET. 6.NORTH ENTRANCE TO THE PARK WILL BE CLOSED DURING CONSTRUCTION. 7.PUBLIC RESTROOMS SHALL REMAIN OPEN AND ACCESSIBLE TO THE GENERAL PUBLIC UNLESS WRITTEN APPROVAL IS GIVEN BY CITY OF RENTON PUBLIC WORKS AND PARKS DEPARTMENTS FOR TEMPORARY OR INTERMITTENT CLOSURES. RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:29 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\01_G05.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420205 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERPEDESTRIAN CONTROL PLAN GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT AC-12 GENERAL 1.THESE NOTES CONTAIN GENERAL INFORMATION AND ARE NOT NECESSARILY COMPLETE FOR CONSTRUCTION PURPOSES. VERIFY INFORMATION SHOWN ON THE DRAWINGS WITH OTHER DOCUMENTS AND BRING CONFLICT(S) TO THE ATTENTION OF THE CITY BEFORE BEGINNING THE AFFECTED WORK. THE CITY WILL RESOLVE THESE CONFLICT(S). 2.PROJECT DATUM AND SURVEY CONTROL: REFER TO NOTES ON DRAWING G-02 AND SURVEY BY SITTS AND HILL ENGINEERS, INC, COMPLETED ON 30 APRIL,2020. 3.ALL SURVEYING AND STAKING REQUIRED DURING CONSTRUCTION SHALL BE PERFORMED BY THE CONTRACTOR. 4.THE PARK TRAIL NEAR THE WORK WILL BE CLOSED TO THE PUBLIC DURING CONSTRUCTION. SUBMIT A TRAFFIC CONTROL PLAN TO THE CITY FOR REVIEW AND APPROVAL PRIOR TO THE START OF CONSTRUCTION. 5.CONTRACTOR AREAS FOR STAGING, LAYDOWN, STORAGE OF MATERIALS AND EQUIPMENT SHALL BE COORDINATED WITH THE CITY PRIOR TO MOBILIZATION TO THE SITE. 6.KEEP ALL ON-SITE PROJECT AREAS CLEAN AT ALL TIMES BY SWEEPING. WASHING AND/OR USE OF WATER TRUCK TO CLEAN PAVED AREAS ARE/IS NOT ALLOWED. 7.SITE FEATURES NOT SPECIFICALLY ADDRESSED IN PROJECT SPECIFICATIONS SHALL BE CONSTRUCTED IN ACCORDANCE WITH APPLICABLE MATERIAL AND CONSTRUCTION REQUIREMENTS SECTION OF WSDOT M41-10, STANDARD SPECIFICATION FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION, 2020, UNLESS NOTED OTHERWISE. DIVISION 1 AND MEASUREMENT AND PAYMENT SECTIONS OF WSDOT M41-10 DO NOT APPLY TO THIS PROJECT. 8.FIELD SURVEY PERFORMED WAS USED TO SHOW APPROXIMATE LOCATION OF EXISTING UNDERGROUND UTILITIES AND SITE FEATURES. HOWEVER, IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN, AND TO FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT SHOWN HERE IN WHICH MAY BE AFFECTED BY THE IMPLEMENTATION OF THESE PLANS. USE A UTILITY LOCATION SERVICE FOR ALL AREAS REQUIRING EXCAVATION. INFORM THE CITY OF ANY POTENTIAL CONFLICTS OR INTERFERENCES FOR RESOLUTION PRIOR TO PERFORMING EXCAVATION. 9.ALL EXISTING UTILITIES SHALL REMAIN IN SERVICE DURING CONSTRUCTION UNLESS OTHERWISE NOTED. 10.THE CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR DETERMINING THE ADEQUACY OF EXISTING STRUCTURES AND UTILITIES TO SUPPORT CONSTRUCTION LOADS. 10.THE CONTRACTOR SHALL BE RESPONSIBLE FOR AND SHALL INSTALL AND MAINTAIN SHORING AND BRACING NECESSARY TO PROTECT WORKERS, UTILITIES AND OTHER IMPROVEMENTS AND EXCAVATION PER FEDERAL, STATE & CITY REGULATIONS. THE CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR REMOVAL OF TEMPORARY SHORING AND BRACING. 11.PROVIDE PEDESTRIAN SIGNS & TRAFFIC CONTROL DURING CONSTRUCTION. 12.INSTALL TEMPORARY CONSTRUCTION FENCE AROUND THE JOB SITE. 13.PROVIDE AND MAINTAIN TEMPORARY SEDIMENTATION COLLECTION FACILITIES TO ENSURE THAT SEDIMENT-LADEN WATER DOES NOT ENTER THE NATURAL OR PIPED DRAINAGE SYSTEM. REFER TO THE APPLICABLE DRAWINGS AND PROJECT SPECIFICATIONS FOR REQUIREMENTS AND DETAILS THAT ARE CONSIDERED THE MINIMUM TESC FEATURES REQUIRED DURING CONSTRUCTION. AS CONSTRUCTION PROGRESSES AND SEASONAL CONDITIONS DICTATE, MORE TESC FACILITIES MAY BE REQUIRED TO ENSURE COMPLETE SILTATION AND EROSION CONTROL OF THE PROJECT. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF CONTRACTOR TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY CONTRACTOR'S ACTIVITIES AND TO PROVIDE ADDITIONAL TESC FACILITIES THAT MAY BE NEEDED TO PROTECT ADJACENT LAND AND EXIST DRAINAGE FEATURES. REMOVE TESC FACILITIES AT COMPLETION OF THE PROJECT. 14.A TESC PLAN SHALL BE SUBMITTED AND APPROVED BY THE CITY PRIOR TO STARTING CONSTRUCTION ACTIVITIES.. 15.ANY DAMAGE INCURED TO ANY PART OF THE SITE OR BOUNDARY NOT SPECIFICALLY DESIGNATED FOR DEMOLITION SHALL BE REPAIRED, REPLACED, AND/OR RECONSTRUCTED BY THE CONTRACTOR, AT THE CONTRACTORS EXPENSE, TO THE PRE-DISTURBED CONDITIONS AS DIRECTED BY THE CITY. 16.A PRE-CONSTRUCTION CONFERENCE SHALL BE HELD PRIOR TO THE START OF CONSTRUCTION. 17.A SET OF CITY APPROVED PLANS SHALL BE KEPT AT THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 18.ALL DEVIATIONS FROM THESE PLANS SHALL BE RECORDED ON A SET OF "AS-BUILT" OR RECORD DRAWINGS. THE CONTRACTOR SHALL SUBMIT "AS-BUILT" DRAWINGS TO THE CITY. DEMOLITION AND CONSTRUCTION 16.CONTAIN DEMOLITION WITHIN THE LIMITS DESIGNATED. DO NOT DAMAGE EXISTING STRUCTURES, UTILITIES, OR FACILITIES. 17.DO NOT ALLOW DEMOLITION, CONSTRUCTION, OR OTHER DEBRIS TO FALL ONTO THE SLOPE OR INTO THE WATER BY UTILIZING TARPS, FLOATS, OR OTHER MEANS. 18.MONITOR OVERWATER DEMOLITION AND CONSTRUCTION ACTIVITIES AND IMMEDIATELY REMOVE AND DISPOSE OF ANY DEMOLITION, CONSTRUCTION, OR OTHER DEBRIS THAT ENTERS THE WATER IN ACCORDANCE WITH FEDERAL, STATE, AND LOCAL REGULATIONS AND PERMIT REQUIREMENTS. MODIFY CONTAINMENT METHODS IF MONITORING INDICATES THAT THE METHODS IN USE ARE NOT EFFECTIVE. 19.MAINTAIN TREE PROTECTION THROUGHOUT CONSTRUCTION IN ACCORDANCE WITH THE PLANS AND DETAILS ON SHEET C-4. 20.PERFORM WORK IN ACCORDANCE WITH PERMIT AND REGULATION REQUIREMENTS. 21.PRIOR TO GENERAL DEMOLITION, SAWCUT WHERE NOTED, OR OTHERWISE PROVIDE A SMOOTH CLEAN BREAK BETWEEN ITEMS THAT ARE TO BE DEMOLISHED AND ITEMS THAT ARE TO REMAIN. 22.DEMOLITION AND EXCESS CONSTRUCTION MATERIALS, EXCEPT AS NOTED, SHALL BECOME THE PROPERTY OF THE CONTRACTOR AND SHALL BE REMOVED AND DISPOSED OF. 23.THE REMOVAL, HANDLING, AND DISPOSAL OF DEMOLITION MATERIALS, INCLUDING CREOSOTE-TREATED AND OTHER TIMBERS, SHALL BE IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL REQUIREMENTS. PROPER DISPOSAL OF DEMOLITION AND CONSTRUCTION MATERIALS SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR AND IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FAMILIARIZE ITSELF WITH THE MATERIALS TO BE DISPOSED OF; FEDERAL, STATE, AND LOCAL REGULATIONS; AND PERMIT REQUIREMENTS. 24.WHEN MODIFYING OR TRIMMING EXISTING ELEMENTS IS REQUIRED, DO NOT DAMAGE OR REDUCE THE LOAD-CARRYING CAPACITY OF THE EXISTING ELEMENTS. HMA PAVING AND SURFACE RESTORATION 1.HMA SHALL BE CLASS 1/2-INCH, PG 58S-22 FOR TYPICAL PAVING SECTION, SEE 2.SAW-CUT AND CAREFULLY REMOVE EXISTING PAVEMENT IN A MANNER TO PREVENT DAMAGE TO CLEAN VERTICAL ACP EDGE. PAVEMENT MARKING AND SIGNAGE 1.REPLACE IN KIND ALL EXISTING PAVEMENT MARKING ON TRAIL (SUCH AS CENTER STRIPES) AS REQUIRED DUE TO CONSTRUCTION ACTIVITIES REQUIRING SURFACE DEMO. WATER 1.WATER GENERAL NOTES SHALL BE PER THE CITY OF RENTON STANDARD PLAN NO. 300, SEE SHEET C-8. 2.POT-HOLE AS REQUIRED TO CONFIRM ALL TIE-IN LOCATIONS, AND SIZE, MATERIAL, AND DEPTH OF EXISTING PIPE. NOTIFY THE CITY WHERE UNFORSEEN SITE CONDITIONS OR DISCREPANCIES ARE DISCOVERED. 3.WHERE EXISTING ACP IS REMOVED FOR PIPE INSTALLATION, REPAIR SECTION SHALL MATCH EXISTING BUT ALSO BE NOT LESS THAN 3" (MIN) ACP OVER 6" (MIN) COMPACTED BASE COURSE. TOP OF ACP SHALL BE FLUSH WITH EXIST. ALL PAVEMENT REMOVAL SHALL BE ACOMPLISHED USING SAW-CUTS. 4.WHERE WATER LINES ARE INSTALLED IN UNPAVED AREAS, SURFACE SHALL BE STABILIZED TO MATCH SURROUNDING CONDITIONS BY EITHER HYDRO-SEEDING WITH PERMANENT SEED MIX, PLACING LANDSCAPING BARK, OR PLACEMENT OF 3" THICK COMPACT CRUSHED AGGREGATE. 5.COORDINATE ALL UTILITY SHUTDOWNS WITH THE CITY OF RENTON PUBLIC WORKS. DISRUPTION OF ANY WATER SERVICE SHALL BE APPROVED IN ADVANCE. EROSION AND SEDIMENTATION CONTROL BMP REQUIREMENTS THE FOLLOWING WASHINGTON STATE DEPARTMENT OF ECOLOGY TESC BMP'S SHALL BE USED AT THE PROJECT SITE AS REQUIRED FOR CONSTRUCTION STORMWATER POLLUTION PREVENTION AND PERMANENT EROSION CONTROL. REFER TO ECOLOGY'S 2019 STORMWATER MANAGEMENT MANUAL FOR WESTERN WASHINGTON (SWMMWW), JULY 2019, AND CITY OF RENTON SURFACE WATER DESIGN MANUAL (RSWDM), 2017 FOR REQUIREMENTS RELATED TO THE FOLLOWING BMP'S. OBTAIN A COPY OF SWMMWW USING THE FOLLOWING LINK: HTTPS://FORTRESS.WA.GOV/ECY/EZSHARE/WQ/PERMITS/FLARE/2019SWMMWW/2019SWMMWW.HTM THE BMP'S AND RELATED DESIGN AND INSTALLATION SPECIFICATIONS AND MAINTENANCE STANDARDS DESCRIBED FOR EACH BMP IN THE SWMMWW AND/OR RSWDM SHALL BE CONSIDERED CONTRACT REQUIREMENTS UNLESS OTHERWISE NOTED. 1.BMP C103: HIGH VISIBILITY FENCE - WHERE SILT FENCE IS NOT REQUIRED, INSTALL HIGH VISIBILITY FENCE AT LIMITS OF DISTURBANCE IN ACCORDANCE WITH BMP C103 AND WSDOT STD PLAN I-10.10-01. WHERE SILT FENCE IS REQUIRED AT LIMITS OF DISTURBANCE, INSTALL HIGH VISIBILITY STILT FENCE IN ACCORDANCE WITH WSDOT STD PLAN I-30.17-01 OR HIGH VISIBILITY SILT FENCE WITH BACKUP SUPPORT IN ACCORDANCE WITH WSDOT STD PLAN I-30.16-01 AS REQUIRED TO MAINTAIN INTEGRITY OF SILT FENCE. 2.BMP C105: STABILIZED CONSTRUCTION ENTRANCE/EXIT - ALSO SEE WSDOT STD PLAN I-80.10-02. 3.BMP C106: WHEEL WASH - ONLY REQUIRED WHEN BMP C105 IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO ROADWAY 4.BMP C140: DUST CONTROL 5.BMP C151: CONCRETE HANDLING 6.BMP C154: CONCRETE WASHOUT AREA 7.BMP C160: CERTIFIED EROSION AND SEDIMENT CONTROL LEAD. 8.BMP C233: SILT FENCE - ALSO REFER TO NOTES UNDER BMP C103 9.BMP C235: WATTLES SUGGESTED CONSTRUCTION SEQUENCE FOR TESC: 1.PRE-CONSTRUCTION MEETING 2.FLAG OR FENCE CLEARING LIMITS 3.POST SIGN WITH NAME AND PHONE NUMBER OF CERTIFIED TESC LEAD 4.GRADE AND INSTALL CONSTRUCTION ENTRANCE(S). 5.INSTALL PERIMETER PROTECTION (SILT FENCE, WATTLES, ETC.) 6.MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH THE DEPARTMENT OF ECOLOGY STANDARDS AND MANUFACTURER'S RECOMMENDATIONS. 7.RELOCATE SURFACE WATER CONTROLS AND EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH THE DEPARTMENT OF ECOLOGY EROSION AND SEDIMENT CONTROL STANDARDS. 8.COVER ALL AREAS WITH TESC FEATURES THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR TWO DAYS DURING THE WET SEASON IN ACCORDANCE WITH THE SPECIFICATIONS. 9.STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS. 10.UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS SHALL BE STABILIZED AND TESC BEST MANAGEMENT PRACTICES REMOVED IF APPROPRIATE AS DETERMINED BY THE CITY. RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 1:29 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C01.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420206 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERCIVIL NOTES GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT X X X X X X X OHW OHWOHWOHWOHWPLAN - TEMPORARY EROSION AND SEDIMENT CONTROL SCALE: EXIST CONC FOOTING, TYP EXIST PEDESTRIAN ACP TRAIL EXIST TIMBER TRESTLE EXIST PARK TRAIL OHW OHW OHW OHW TESC NOTES: LEGEND EXIST JUNCTION BOX EXIST LIGHT POLE EXIST UTILITY POLE EXIST TREES (SEE DRAWING C-4 FOR PROTECTION DETAILS) EXIST FENCE ORDINARY HIGH WATER LINE SILT FENCE FLOATING DEBRIS BOOM HIGH VISIBILITY FENCE EXIST TREE W/ TREE PROTECTION SEE DRAWING C-4 OHW X X PLANTING NORTH AREA OHWPUBLIC RESTROOM 1" = 20' feet 4020200 scale 1.BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE-CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR. 2.THE CONTRACTOR IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (ECOLOGY) CONSTRUCTION STORMWATER GENERAL PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO ECOLOGY ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT. 3.THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION COMMENCEMENT TO POST-PROJECT CLEANUP IN ORDER TO FULFILL PROJECT ESC REQUIREMENTS. 4.THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. 5.THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE AREAS AND THEIR BUFFERS, AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) PRIOR TO THE START OF CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 6.STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK-OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING WATERS OF THE STATE. 7.WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFF-SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR OPEN DITCHES. ON-SITE DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE WASHOUT AREAS. 8.ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON-SITE EROSION HAS PASSED. ALL ESC BMPS SHALL BE REMOVED AFTER CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON-SITE EROSION DOES NOT EXIST. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT, ENHANCEMENT, AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT. 9.ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY. 10.THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATE D SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE NECESSARY TO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROV IDE ADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 11.ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES SHALL BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL. 12.ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.) IN CONFORMANCE WITH APPENDIX D OF THE RENTON SWDM. 13.WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 30TH, UNLESS OTHERWISE APPROVED BY THE CITY. 14.ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. 15.THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. INSPECTION AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY. 16.BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING CONDITION. 17.AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT-LADEN WATER INTO THE DOWNSTREAM SYSTEM. 18.PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 19.ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHTS-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 12:15 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C02.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420207 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERTESC PLAN GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT SILT FENCE1C-2 SCALE: NTS RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:55 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C03.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420208 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERTESC DETAILS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT 2'-0"MIN6'-0"MINSEE NOTE 3 DETAIL - INDIVIDUAL TREE PROTECTION1 C-2 SCALE: NTS TREE PROTECTION NOTES: TEMP CHAIN LINK CONSTRUCTION FENCE DRIPLINE OF TREE OR 1.25 DIA OF BASE OF TRUNK x 1.25', WHICH EVER IS GREATER (SEE NOTE 3)2'-0"MIN6'-0"MIN8'-0" MAX POST SPA DETAIL - MULTIPLE TREE PROTECTION2 C-2 SCALE: NTS TEMP CHAIN LINK CONSTRUCTION FENCE DRIPLINE OF TREE OR 1.25 DIA OF BASE OF TRUNK x 1.25', WHICH EVER IS GREATER (SEE NOTE 3) POST , TYP SEE NOTE 5 POST , TYP SEE NOTE 5 1.TREE PROTECTION SHALL BE INSTALLED PRIOR TO START OF CONSTRUCTION ACTIVITIES AND REMAIN THROUGHOUT THE WORK AS NECESSARY TO PROTECT EXISTING VEGETATION TO REMAIN. 2.PROTECT ALL TREES AND OTHER PLANT MATERIAL SCHEDULED TO REMAIN. DO NOT PARK ANY VEHICLES OR EQUIPMENT, STORE MATERIALS OR STOCKPILED SOIL, DISPOSE OF BUILDING MATERIALS, CHEMICALS, PETROLEUM PRODUCTS, OR OTHER DETRIMENTAL SUBSTANCES WITHIN LIMITS OF TREE PROTECTION FENCING OF ANY EXISTING TREE TO REMAIN. PROTECT EXISTING TREES FROM FLAME, SMOKE, AND HEAT. CONSTRUCTION ACCESS TO SITE SHALL NOT OCCUR BENEATH DRIP LINE OF EXISTING TREES UNTIL SPECIAL PROVISIONS HAVE BEEN MET TO PROTECT ALL EXISTING VEGETATION TO REMAIN. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL DAMAGE TO EXISTING TREES AND PLANT MATERIAL DURING CONSTRUCTION. ALL CLEARING AND GRUBBING OR EXCAVATION WITHIN LIMITS OF TREE PROTECTION FENCING SHALL BE DONE BY HAND METHODS. 3.A TEMPORARY CHAIN LINK CONSTRUCTION FENCE SHALL BE INSTALLED AROUND THE GREATER OF THE PROTECTED TREE DRIPLINE OR SURROUNDING A TREE AT A DISTANCE EQUAL TO OR GREATER THAN 1.25 FEET FOR EACH 1-INCH OF TRUNK WIDTH LOCATED 3-FEET ABOVE THE LOWEST GRADE. TEMPORARY FENCE SHALL BE INSTALLED TO SURROUND TREE(S). 4.TEMPORARY CHAIN LINK FABRIC TO BE MINIMUM 11 GAUGE, GALVANIZED. DO NOT USE RUSTED OR MALFORMED FABIC. 5.POSTS SHALL BE GALVANIZED 2"Ø STANDARD PIPE POSTS, OR APPROVED EQUAL. INSTALL POSTS TO AVOIDED DAMAGE TO MAJOR ROOTS, AND WITH SUFFICIENT EMBEDMENT TO SUPPORT FENCE. CONCRETE FENCE POST FOOTINGS ARE ACCEPTABLE OVER PAVED SURFACES. 6.ROOTS 1-INCH IN DIAMETER AND GREATER EXPOSED DURING CONSTRUCTION SHALL HAVE A CLEAN STRAIGHT CUT TO REMOVE DAMAGED PORTION OF ROOT, AND ALL EXPOSED ROOTS SHALL BE COVERED WITH TOPSOIL IMMEDIATELY TO PREVENT DRYING. 7.INDIVIDUAL TREES SHALL HAVE TEMPORARY FENCING PLACE ON FOUR SIDES, WITH PLACARDS INSTALLED ON EACH SIDE. PLACARDS SHALL HAVE THE FOLLOWING WORDS, "NO TRESPASSING - PROTECTED TREES". 8.WHERE EXCAVATING FOR NEW CONSTRUCTION IS REQUIRED WITHIN LIMITS OF TREE PROTECTION FENCING, EXCAVATE BY HAND TO MINIMIZE DAMAGE TO ROOTS AND PERFORM AS FOLLOWS: A.USE NARROW TINE SPADING FORKS AND COMB SOIL TO EXPOSE ROOTS. B.IF MAIN LATERAL ROOTS ARE IMMEDIATELY ADJACENT TO LOCATION OF NEW CONSTRUCTION, THE CONTRACTOR SHALL NOTIFY THE OWNER'S REPRESENTATIVE PRIOR TO ANY EXCAVATION. C.DO NOT ALLOW EXPOSED ROOTS TO DRY OUT BEFORE PERMANENT BACKFILL IS PLACED. D.PROVIDE TEMPORARY EARTH COVER AND/OR MOIST ORGANIC MULCH, OR PACK WITH PEAT MOSS AND WRAP WITH BURLAP. WATER AND MAINTAIN THE MOIST CONDITION UNTIL COVERED WITH BACKFILL. 9. ANY TREE EXCEEDING 12 INCHES IN CALIPER AND LARGER, MEASURED 3 FEET ABOVE THE LOWEST GRADE IMMEDIATELY ADJACENT TO THE TREE IS CONSIDERED A SIGNIFICANT EXISTING TREE. ANY DAMAGE TO A SIGNIFICANT EXISTING TREE SHALL IMMEDIATELY BE REPORTED TO THE CITY. RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:32 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C04.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420209 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERDETAILS - TREE PROTECTION GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT X X X X X X X X X X X X X X X X X X WW W W W W W W W W W W W W W W W W W W W OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHW OHW OHWOHWOHWOHWOHWOHWOHW PLAN - DEMOLITION TIMBER TRESTLE SCALE: 1" = 8'feet 16880 scale 1C-6 WP2 REMOVE & DISPOSE OF TREATED TIMBER PILE CAPS 8x14x16'-0", (10) TOTAL A C-6 REMOVE & DISPOSE 8"Ø WATER LINE REMOVE & DISPOSE OF ±1,325 SF, 4x12 TIMBER DECKING TYPREMOVE, STORE & REPLACE SHORE PROTECTION AS REQ'D FOR NEW ABUTMENTS, TYP REMOVE & DISPOSE OF TREATED TIMBER PILES (58) TOTAL, TYP REMOVE 265 SF OF ACP, TYP W W OHP 10'-3"±10'-1"±NOTES: PARK TRAIL, TYP CONC FOOTING TO REMAIN 25'-0"25'-0" SEE NOTE 3 SEE NOTE 3 W W W W W W W W W W W W W W W W W W W W W W W W W W W W REMOVE 270 SF OF ACP, TYP LEGEND SAW-CUT EXISTINGASPHALT PAVEMENT,TYP EA END OF TRAIL 105'-10" E E E E E E E E E E E E E E E PROTECT LIGHT POLE & PULL BOX DURING CONSTRUCTION, TYP SEE DRAWING E-1 EXIST JUNCTION BOX EXIST LIGHT POLE EXIST UTILITY POLE EXIST TREES EXIST WATER LINE EXIST ELECTRICAL CONDUIT ORDINARY HIGH WATER LINE OVERHEAD POWER LINE EXIST HANDRAIL EXISTING ASPHALT PAVEMENT DEMOLITION (ASSUME 3" THICK FOR BASIS OF BID) TREE PROTECTION REQUIRED, SEE DRAWING C-4 FOR DETAILS WP NORTHING EASTING WP2 1301793.2818 189457.1240 WORK POINT COORDINATES WP1 1301827.3032 189361.2657 WP112'-7"℄ BRIDGE 16'-0"±1'-9"±PROTECT EXIST JUNCTION BOX DURING CONSTRUCTION, TYP 14'-0"±2'-10"1.SEE DRAWING L-1 FOR THE LIMITS OF CLEARING AND GRUBBING. 2.SEE DRAWING C-4 FOR TREE PROTECTION REQUIREMENTS. 3.INSTALL A TEMPORARY MJ CAP AND RESTRAINT JOINT AND 2" BLOWOFF ON EXISTING DUCTILE IRON PIPE BY THE CITY OF RENTON FORCES. PRIOR TO INSTALLATION OF TEMPORARY CAP COORDINATE OUTAGE WITH THE CITY. 4.POT-HOLE EACH WATER PIPE CONNECTION LOCATION TO CONFIRM LOCATION AND DEPTH OF EXISTING PIPE AT LOWER 22.5 DEG BEND PRIOR TO DEMOLITION. W W W W W W W W W W W W W W W W W W RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 12:17 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C05.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420210 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERPLAN - DEMOLITION EXISTING BRIDGE GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT SECTION - EXIST ABUTMENTB-SCALE: 1" = 1'-0" feet 2110 scale 1'-0"6"(5) 4x12 DRAINAGE MATERIAL FINISHED GRADE 2"2" 9x18 STRINGER PILE CAP RIP-RAP PILE BLOCKING 4x4x8'-0" 4x12 DECKING, TYP BUTTON HEAD BOAT SPIKES ℄ POST ℄ POST 8'-0" ±3'-6"TIMBER DECKING TIMBER 2x7 TOP RAILTIMBER 2x5, TYP CHAIN LINK PANEL, TYP TIMBER 2x6, TYP 2"Ø STD POST, TYP 1/4x6 1/2 x0'-7 1/2" BASE PL, TYP TIMBER TOP RAIL TIMBER 2x5, TYP 2"Ø STD POST, TYP BOLTED BASE PL TIMBER 2X6, TYP DETAIL - EXIST RAILING2 -SCALE: 1" = 1'-0" feet 2110 scale ELEVATION SECTION 3/8" = 1'-0" feet 4220 scale SECTION - EXIST STRUCTUREA C-5 SCALE: 2'-3"± 4x12 DECKING9x18 STRINGER 4x6 BRIDGING, TYP 3/8" = 1'-0" feet 4220 scale PLAN - EXIST ABUTMENT1 C-5 SCALE: 12'-6" TRESTLE DECK B- STRINGER, TYP PILE CAP 4x4 4x12 DECKING TIMBER PILE, TYP 12'-6"±2'-3"± TOP OF DECK EL 23.7' NOTE: TIMBER PILES NOT SHOWN. RAILING, SEE TYP2 - 8"Ø DI WATER MAIN RENTON CITY OF Last Saved by: USGN675479 on: Jan 7, 2022 11:33 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C06.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420211 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - EXISTING BRIDGE GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT X X X X X X X X X X X X X X X X X X X OHW OHW OHWOHWOHWOHWOHWOHWOHW PLAN - WATER MAIN REPLACEMENT SCALE: X OHW W W EXIST PARK TRAIL EXIST PARK TRAIL W W W W W W W W W W W TR BRIDGE GIRDER, TYP CONCRETE ABUTMENT, TYP SEE STRUCTURAL DRAWINGS FOR PIPE SUPPORTS & OFFSET LOCATION ON BRIDGE 16'-0"±EXIST 8" C.I. 11.25° VERT BEND (MJ x MJ)14'-0"± 1" = 8' feet 16880 scale NOTE: FOR PIPE TRENCH DETAIL, SEE 1 C-12 EXIST 8" DIP WATERMAIN EXIST 8" C.I. 45° HORIZ BEND (MJ x MJ) EXIST 8" C.I. 45° HORIZ BEND (MJ x MJ) EXIST 8" C.I. WATERMAIN POINT OF CONN (POC) TO EXIST WATERMAIN. MAKE CONN TO EXIST LOWER VERT 22.5° BEND TO REMAIN. REM ALL PIPING SOUTHEAST OF LOWER VERT BEND TO POC ON OPPOSITE END OF BRIDGE. SEE DETAILS AC-102C-8 POINT OF CONN (POC) TO EXIST WATERMAIN. MAKE CONN TO EXIST LOWER VERT 22.5° BEND TO REMAIN. REM ALL PIPING NORTHWEST OF LOWER VERT BEND TO POC ON OPPOSITE END OF BRIDGE. SEE DETAILS 1 C-8 & B C-10& AC-10 BC-10 W W W W W W W W WWWWW 8" CL 53 RESTRAINED JOINT DIP, WRAPPED W/ INSULATION E E E E E E E E E E E E E LEGEND EXIST JUNCTION BOX EXIST LIGHT POLE EXIST ULITITY POLE EXIST TREES EXIST FENCE EXIST 8"Ø WATER MAIN 8" DI WATER LINE ELECTRICAL CONDUIT (SEE DRAWING E-02) ORDINARY HIGH WATER LINE E ℄ BRIDGE WP2 WP NORTHING EASTING WP2 1301793.2818 189457.1240 WORK POINT COORDINATES WP1 1301827.3032 189361.2657 WP1 50'-0"± INSTALL 8" ISOLATION VALVE (RJxRJ) ON EXIST 8" WATER, 1'-8" SLEEVE (RJxRJ), VALVE TO BE CUT-IN BY CITY WATER DEPARTMENT. CONTRACTOR TO PROVIDE ALL MATERIALS, EXCAVATION AND RESTORATION, TYP 50'-0"± REMOVE TEMP BLOCK & 8" BLOW-OFF & CONNECT TO EXIST WATER LINE W/ SLEEVE AND DI SPOOLS, FINAL CONNECTION BY CITY FORCES, TYP RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 1:30 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C07.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202W-420201 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERWTRP-27-4202PLAN - WATER UTILITIES GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT DETAIL - TIE INTO EXISTING END LINE CAP2C-7 SCALE: NTSDETAIL - WATER GENERAL NOTES2C-2 SCALE: NTS RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 8:20 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C08.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202W-420202 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERWTRP-27-4202DETAILS - WATER UTILITIES SHEET 1 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT DETAIL - THRUST BLOCK1C-2 SCALE: NTS DETAIL - THRUST BLOCK2C-2 SCALE: NTS RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 8:24 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C09.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202W-420203 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERWTRP-27-4202DETAILS - WATER UTILITIES SHEET 2 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT ℄ PILE ℄ ABUTMENT FORCE BALANCED FLEX TEND EXPANSION JOINT (FL x FL) 18" DIA. HOLE FOR PENETRATION SEE STRUCTURAL FOR DETAILS 11"3'-0" 4 LF 8" DIP, FL X FL PIPE SUPPORT WELDED TO CHANNEL (RESTRAINED LATERALLY & VERTICALLY W/ PTFE SLIDE PAD TO ALLOW AXIAL MOVEMENT), SEE NOTE 1. STEEL EXTERIOR GIRDER PIPE RESTRAINT ANCHOR, SEE DRAWING S-13 FOR DETAILS SECTION - FLEXIBLE EXPANSION JOINTA C-7 SCALE: 3/4" = 1'-0" feet 2110 scale FINISH GRADE EXISTING GRADE ±15'℄ PIPE SUPPORT 1'-10" TYP 6"± END OF RJ PIPE BELL 5'-3"±6' TO 8'3'-0"3'-0"EXIST 8" DIP FIELD LOCATE AND DEMO EXIST LOWER VERTICAL BEND & CONC THRUST BLOCK. PROVIDE REPLACEMENT VERTICAL DI 22.5° BEND (RJ) W / CONC THRUST BLOCK (THRUST BLOCK NOT SHOWN), SEE NOTE 3 & SHEET C-9 TR-FLEX RJ x FL ADAPTER 8"Ø DIP RJ-SPIGOT x RJ-SPIGOT LENGTH AS REQ'D FIELD LOCATE AND DEMO EXIST UPPER VERTICAL BEND & CONC THRUST BLOCK. PROVIDE REPLACEMENT VERTICAL DI 22.5° BEND (RJ) W / CONC THRUST BLOCK (THRUST BLOCK NOT SHOWN), SEE SHEET C-9 ℄ PILE ℄ ABUTMENT FORCE BALANCED FLEX TEND EXPANSION JOINT (FL x FL) 18 DIA. HOLE FOR PENETRATION SEE STRUCTURAL FOR DETAILS 11"3'-0" 4 LF 8" DIP, FL X FL 8" DI 11.25° BEND FL x FL (ROLL FITTING TO MEET REQ'D VERT & HORIZ OFFSET BETWEEN PIPE LOCATION ON BRIDGE AND PIPE PENETRATION THRU CONC ABUTMENT) STEEL EXTERIOR GIRDER PIPE RESTRAINT ANCHOR, SEE DRAWING S-13 FOR DETAILS SECTION - FLEXIBLE EXPANSION JOINTB C-7 SCALE: 3/4" = 1'-0"feet 2110 scale FINISH GRADE EXISTING GRADE ±15' 10"±1'-10" TYP 8" DIP FL x FL LENGTH AS REQ'D FOR VERT & HORIZ OFFSET 5'-3" FL CONN BETWEEN DIP AND FLEX-TEND 8" FORCE BALANCED FLEX-TEND EXPANSION JOINT (FL x FL), W/ ONE END ROTATED AS REQ'D FOR HORIZ & VET OFFSET FACE OF CONC ABUTMENT ±6' TO 8'3'-0"3'-0"EXIST 8" DIP USE MEGALUG SERIES 1100 MJ RESTRAINT OR EQUAL 8" DIP RJ-SPIGOT X PE PIPE BETWEEN FITTINGS, LENGTH AS REQ'D FOR ELEV DIFFERENCE BETWEEN EXISTING PIPE AND PIPE GOING THRU ABUTMENT. SEE NOTE 3 1'-0"± TR-FLEX RJ x FL ADAPTER 8"Ø DIP RJ-SPIGOT x RJ-SPIGOT LENGTH AS REQ'D ℄ PIPE SUPPORT 8" DIP FL x RJ BELL FACE OF CONC ABUTMENT SEAL ANULAR SPACE BETWEEN HOLE THRU ABUTMENT AND EXTERIOR PIPE JACKET, SEE NOTE 2, TYP BEGIN PRE-INSULATED PIPE FOR BRIDGE AT FLANGE OF BURIED FLEX-TEND, SEE NOTE 4. INSULATION NOT SHOWN. SEE NOTE 3 FIELD LOCATE AND DEMO EXIST UPPER VERTICAL BEND & CONC THRUST BLOCK. PROVIDE REPLACEMENT VERTICAL DI 22.5° BEND (RJ) W / CONC THRUST (THRUST BLOCK NOT SHOWN, SEE SHEET C-9) USE MEGALUG SERIES 1100 MJ RESTRAINT OR EQUAL 8" DIP RJ-SPIGOT X PE PIPE BETWEEN FITTINGS, LENGTH AS REQ'D FOR ELEV DIFFERENCE BETWEEN EXISTING PIPE AND PIPE GOING THRU ABUTMENT. 1'-0"± SEAL ANULAR SPACE BETWEEN HOLE THRU ABUTMENT AND EXTERIOR PIPE JACKET, SEE NOTE 2, TYP BEGIN PRE-INSULATED PIPE FOR BRIDGE AT FLANGE OF BURIED FLEX-TEND, SEE NOTE 4. INSULATION NOT SHOWN. PIPE INSULATION, TYP ALL EXPOSED PIPE & FITTINGS PIPE INSULATION, TYP ALL EXPOSED PIPE & FITTINGS 8" DIP FL x FL LENGTH AS REQ'D FOR VERT & HORIZ OFFSET 8" FORCE BALANCED FLEX-TEND EXPANSION JOINT (FL x FL), W/ ONE END ROTATED AS REQ'D FOR HORIZ & VET OFFSET 8" DIP FL x RJ SPIGOT8" DI 11.25° BEND, FL x FL (ROLL FITTING TO MEET REQ'D VERT & HORIZ OFFSET) FL CONN BETWEEN DIP AND FLEX-TEND FIELD LOCATE AND DEMO EXIST LOWER VERTICAL BEND & CONC THRUST BLOCK. PROVIDE REPLACEMENT VERTICAL DI 22.5° BEND (RJ) W / CONC THRUST BLOCK (THRUST BLOCK NOT SHOWN), SEE NOTE 3 & SHEET C-9 NOTES: 1.PROVIDE PIPE SUPPORTS AND SUPPORTING CHANNELS ON BRIDGE. LOCATE BEHIND EACH PIPE BELL AS SHOWN, WITH SPACING NO GREATER THAN 20' OC. PIPE SUPPORTS SHALL NOT BE LOCATED ON SPIGOT END OF PIPE. PIPE SUPPORTS TO PROVIDE LATERAL AND VERTICAL RESTRAINT OF PIPE, AND SHALL HAVE PTFE SLIDE PAD TO ALLOW AXIAL MOVEMENT. PIPE SUPPORT SHALL BE PIPE SHIELDS MODEL B4200 OR APPROVED EQUAL, MODIFIED TO FIT A PRE-INSULATED DIP HAVING OD OF 14.1" AND THE PIPE SUPPORT SUPPLIED 24 GAGE SHEET METAL JACKET. DO NOT USE THE PIPE SUPPORT SUPPLIED INSULATION. WELD BASE OF SUPPORT TO STRUCTURAL CHANNEL. SEE DRAWING S-13 FOR DETAILS. 2.PROVIDE MODULAR LINKSEAL NEAR OUTSIDE EDGE OF PIPE PENETRATION TO SEAL ANNULAR SPACE BETWEEN PRE-INSULATED PIPE HAVING O.D. OF 14.1 INCHES AND 18" DIA HOLE THROUGH ABUTMENT. SEAL ELEMENT SHALL BE EPDM (BLACK), COMPOSITE PRESSURE PLATES, AND 316 STAINLESS STEEL BOLTS AND NUTS. TEMPERATURE RANGE -40 F TO +205 F. LINKSEAL MODULAR SEAL MODEL LS-360-S-316 FOR 18" DIA CAST CONCRETE HOLE OR APPROVED EQUAL. PROVIDE 1'-0" (MIN) LONG 24 GAGE SHEET METAL JACKET AROUND ENTIRE PIPE AT LOCATION OF LINKSEAL, AND INSTALL LINKSEAL WITH CARE TO AVOID DAMAGING THE INSULATION JACKET THAT COULD CAUSE MOISTURE INTO THE INSULATION. 3.POT-HOLE EACH WATER PIPE CONNECTION LOCATION TO CONFIRM LOCATION AND DEPTH OF EXISTING PIPE AT LOWER 22.5 DEG BEND PRIOR TO DEMOLITION (CONNECTION LOCATION). 4.ALL PIPING ON BRIDGE AND THROUGH ABUTMENT TO FLANGE OF BURIED FLEX-TEND ON EACH SIDE OF BRIDGE SHALL BE PRE-INSULATED DUCTILE IRON PIPE WITH EITHER TR-FLEX RESTRAINED JOINTS OR FLANGE JOINTS AS SHOWN. 5.ALL BURIED DUCTILE IRON PIPE AND BURIED FLEX TEND SHALL BE WRAPPED WITH POLYETHYLENE ENCASEMENT (POLYWRAP) IAW AWWA C105. 6.ALL WATER FITTINGS AND VALVES WITH MECHANICAL JOINT (MJ) END(S) SHALL HAVE A WEDGE-TYPE RETAINER GLAND EQUAL TO MEGALUG SERIES 1100. POINT OF CONN TO EXIST WATERMAIN, SEE 2C-8 POINT OF CONN TO EXIST WATERMAIN, SEE 2C-8 RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 12:20 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C10.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202W-420204 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERWTRP-27-4202DETAILS - WATER UTILITIES SHEET 3 GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT ELEVATION - TRAIL GRADING A-SCALE: -3.4%-3.4% A C-12 A C-12 A - PLAN - TRAIL GRADING & PAVING SCALE: ℄ ABUTMENT 2 ℄ ABUTMENT 1 GRATED DECKING OVERLOOK EXIST LIGHT POLE TO REMAIN, TYP HMA PAVEMENT, TYP RAILING, TYP EL 24.3 OHW 18'± EXIST ML @ FACE OF BRIDGE HMA PAVEMENT OVERLOOK GIRDER W/ FRPLUMBER CLADDING RAILING CONC TOPPING OVER GIRDER HMA PAVEMENT EL 24.3 EL 24.3 EL 24.3 MATCH EXIST GRADE APPROX EL 23.5 MATCH EXIST GRADEAPPROX EL 23.5 EXIST ACP TRAILEXIST ACP TRAIL EXIST ACP PARK TRAIL, TYP 1" = 8' feet 16880 scale 1" = 8'feet 16880 scale 12'-0" TAPER 16'-6" TAPER EXIST ACP PATH RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:06 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C11.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420212 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERPLAN & ELEVATION - TRAIL GRADING GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT ℄ TRAIL 2%2%2 1 2 1 EXIST GRADE COMPACT SUBGRADE OR BACKFILL MATERIAL TO 95% MIN CRUSHED SURFACE BASE COURSE SECTION - ACP TRAILAC-11 SCALE: NTS 6" MIN6" MINPIPE OD2'-6" MIN PIPE COVER2'-6" HMA PAVEMENT SECTION NEAT LINE, TYP TRENCH BACKFILL: COMPACTED EXCAVATED MATERIAL AS BACKFILL (IF SUITABLE FOR REUSE) GRAVEL BACKFILL FOR PIPE ZONE BEDDING DETAIL - PIPE TRENCH1C-7 SCALE: NTS 1'-0"VARIES 12'-3" MAX - 10'-0" MIN 1'-0" HMA PAVEMENT SECTION SHALL BE 3" HMA PG58S-22, CLASS 1/2", OVER 6" BASE COURSE OVER COMPACTED SUBGRADE 8" RJ DIP WATERMAIN PIPE TRENCH DETAIL NOTES: 1.PIPE MARKER TAPE NOT SHOWN, BUT SHALL BE PLACED AS DIRECTED IN SPECIFICATIONS. 2.TRENCH SAFETY SYSTEMS (SHORING) SHALL BE USED AS APPLICABLE AND IN STRICT COMPLIANCE WITH WSDOT SECTION 7-08.3(1)B AND LOCAL, STATE, AND FEDERAL SAFETY CODES INCLUDING WAC 296-155, PART N, TO MAINTAIN VERTICAL SIDES FOR TRENCH AND MINIMIZE AMOUNT OF EXCAVATION, BACKFILL, AND SURFACE REPAIR. LAYING BACK TRENCH EXCAVATION (FLATTER SIDE SLOPES) IN LIEU OF SHORING NOT ALLOWED. 3.DEWATER TRENCH AS NECESSARY FOR DEEPER EXCAVATIONS. MAX MAX RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 1:31 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\02_C12.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420213 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERMISC. SECTIONS & DETAILS GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT WWWW W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W OHW OHW OHWOHWOHWOHWOHWOHWOHWOHWOHW OHW BRIDGE ELEVATION2-SCALE: 1" = 5'feet 10550 scale 1" = 5'feet 10550 scale BRIDGE PLAN1L-1 SCALE: OVERLOOK 3L-3 2L-2 1L-2 2 EL 24.3' OHW 18 EXISTING LAKE BOTTOM SURFACE HMA APPROACH STEEL PILE, TYP REPLACE EXIST RIP-RAP WITHIN PREVIOUS FOOTPRINT, TYP BOTTOM OF BRIDGE CONC ABUTMENT, TYP PROPOSED CONCRETE EXPANSION JOINTS CONTROL JOINTS PROPOSED GRAVEL RELOCATED BOULDERS CONCRETE BRIDGE APPROACH ENLARGEMENT SAW-CUT JOINTS, TYP CONCRETE BRIDGE APPROACH EMBANKMENT BOULDERS AT EDGE OF GRAVEL SHOULDER CONC APPROACH SLAB CONCRETE TOPPING OVER EXTERIOR GIRDERS NOTES: 1.TYPICAL POST SPACING FOR HANDRAIL IS APPROXIMATELY 7'-5 3/4" O.C. EXCEPT WHERE SHOWN DIFFERENTLY. 2.SPACING OF HANDRAIL IS TO BE PERPENDICULAR AND PARALLEL AND MATCH ON BOTH SIDES OF THE BRIDGE. 3.PLACE CONTROL JOINTS AND EXPANSION JOINTS IN CONCRETE PERIMETER BAND CENTERED BETWEEN POSTS AS SHOWN ON THE PLAN. 4.SEE DRAWING L-3 FOR MODIFIED SPACING AT OVERLOOK. 5.RELOCATED BOULDERS ARE SHOWN FOR DESIGN INTENT ONLY. CONTRACTOR SHALL VISIT PROJECT SITE AND BE FAMILIAR WITH BOULDER TYPE/SIZES TO BE RELOCATED PRIOR TO PROJECT BID. 1L-3 SS HANDRAIL END POST SS HANDRAIL END POST 1 L-4 FRP LUMBER HANDRAIL 2 L-4 SS HANDRAIL END POST 1 L-4 SS END POST RAIL SUPPORT - SEE STRUCTURAL FRP LUMBER HANDRAIL 2 L-4 SS TWO POST RAIL BASE PL - SEE SS MID POST RAIL SUPPORT (TOP) 4L-4 PRE FAB SS WEBNET PANNELS 3 L-4 BRIDGE & HANDRAIL 1 L-2 TYP. EXPANSION JOINTS, TYP HMA APPROACH GRAVEL SHOULDER GRAVEL SHOULDER HMA APPROACHGRATING GRAVEL SHOULDER GRAVEL SHOULDER INTERPRETIVE SIGN LOCATION - SEE OVERLOOK FOR DETAILS TYP TYP TYP TYP HMA APPROACH TYP TYP CENTER ON END CONCRETE PANEL, TYP BRIDGE CENTERLINE 4'-1 1/4", TYP 7 L-7 TYP 5'-3 1/2"6'-10"5'-3 3/4"7'-5 3/4" SPACING, TYP 7'-5 3/4" SPACING, TYP CONTROL JOINTS, TYP FRP LUMBER CLADDING LAYOUT 5 L-4 L-1 TYP 2S-12CONC APPROACH SLAB OVERLOOK PLAN ORDINARY HIGH WATER MARK EXISTING CONTOURS EXISTING LIGHT POLE EXISTING JUNCTION BOX EXISTING CONIFER TREE EXISTING DECIDUOUS TREE LEGEND EL 24.3' RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:53 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L01.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420214 BRIDGE PLAN & ELEVATION GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT PRE FAB SS WEBNET PANELS STEEL GIRDER, SEE STRUCTURAL (TYP) METAL GRATING (SEE STRUCTURAL) EQUALEQUAL SS WEBNET SS TWO POST RAIL SUPPORT CONCRETE CAP 3" OVERHANG 3 1/2" TYP ℄℄ SEE DRAWING L-1 FOR STANDARD RAIL SPACING EQ. GAP,TYPCONCRETE CAP SS TWO POST RAIL SUPPORT - SEE STRUCTURAL 2'-9 3/4"3 1/2"3'-6"CLADDING FASTENERS - SEE BRIDGE & HANDRAIL OUTSIDE ELEVATION1L-1 SCALE: 1"=1'-0" BRIDGE & HANDRAIL SECTION2 L-2 SCALE: 1"=1'-0" SS REINFORCING PLATE (SEE STRUCTURAL) SS MID POST RAIL SUPPORT (BOTTOM) - SEE STRUCTURAL BOTTOM OF BRIDGE GIRDER SS REINFORCING PLATE (SEE STRUCTURAL)3'-6"2" SS ROUND POSTS AND WEBNET FRAME (BEYOND) FRP LUMBER HANDRAIL INTERMEDIATE HANDRAIL SECTION3-SCALE: 1"=1'-0" SS MID POST RAIL SUPPORT (BOTTOM) - SEE STRUCTURAL 1 12" X 7 716" FRPLUMBER CLADDING SS MID POST RAIL SUPPORT (TOP) FRP LUMBER CLADDING CONCRETE TOPPING SEE DRAWING L-1 FOR MODIFIED SPACING AND LOCATION EQUAL EQUAL FRP LUMBER HANDRAIL 2L-4 4L-4 3L-4 2 L-4 5 L-4 3'-0"STAGGERED JOINTS - RUNNING BOND, TYP WATER SIDEBRIDGE SIDE FRP LUMBER CLADDING TYP. 2L-2 3L-4 SS WEBNET PRE FAB SS WEBNET PANELS 3 L-4 TYP2'-6 1/4"SS MID POST RAIL SUPPORT (TOP) 4 L-4 3L-2 4 L-4 3S-11 3/4" CHAMFER, TYP 3/4" CHAMFER, TYP WOOD GRAIN FINISH ON ALL SIDES PRE FAB SS WEBNET PANELS LUMBER CLADDING TO BE FLUSH WITH BOTTOM OF GIRDER CONCRETE BRIDGE PATTERN4L-1 SCALE: 1"=1'-0"1'-11 3/8"TYP9'-9"BRIDGE ABUTMENT EXPANSION JOINTS - SEE STRUCTURAL 1'-10 3/4"1'-10 3/4"1'-10 3/4" 9'-9"1'-3"1'-3"SAW CUTJOINTS 1'-11 3/8" 1'-11 3/8"CONCRETEEDGE CAP COLOREDCONCRETE COLORED CONCRETEWITH SPARKLE GRAIN LEGEND CONCRETE BRIDGE PATTERN 3/8" = 1'-0"P-PA-COU-041 RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:54 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L02.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420215 BRIDGE & HANDRAIL ELEVATION AND SECTIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT EXISTING LAKE BOTTOM SURFACE OVERLOOK ELEVATION3-SCALE: NTS OVERLOOK PLAN1L-1 SCALE: NTS OVERLOOK FRP LUMBER HANDRAIL CONCRETE TOPPING SS TWO POST RAIL SUPPORT CLADDING FASTENERS (SEE STRUCTURAL) BOTTOM OF BRIDGE GIRDER SS REINFORCING PLATE (SEE STRUCTURAL) FRP LUMBER TYP. CLADDING 1 1/2" X 7 7/16" FRP LUMBER CLADDING STEEL SUPPORT FOR CLADDING SEE OVERLOOK FRP LUMBER CLADDING 135° ANGLE AT JOINT 135° ANGLE AT JOINTS 3 1/2" (TYP) BOTTOM - SS MID POST RAIL SUPPORT, TYP HOLD PLATE 3" BACK FROM END, TYP HANDRAIL OVERLOOK BRIDGE PRE FAB SS WEBNET PANEL WITH 1 1/4" FRAME, TYP OVERLOOK CROSS SECTION2-SCALE: NTS OHW EL 18 CONCRETE TOPPING 2- 6L-05 3 L-05 2-BRIDGE & HANDRAIL SEE DRAWING L-2 FOR ELEVATIONS AND SECTIONS 2L-05 6L-05 1-2L-02 3- TOP - 1 1/4" SS MID POST RAIL SUPPORT, TYP 6'-10" O.C. 135° TYP 3"3'-0"3"OVERLOOK SS TWO POST RAIL SUPPORT, TYP GRATING GRATING CONCRETE TOPPING FRP LUMBER HANDRAIL 6'-2"TOP - SS MID POST RAIL SUPPORT, TYP 1 L-4 4L-4 6'-2"2 L-4 SS MID POST RAIL SUPPORT,TYP 4L-4 2- INTERPRETIVE SIGN DETAIL 4 - 4-3S-11 135°, TYP OVERLOOK ANGLE EDGE, TYP INTERPRETIVE SIGN FRAME MOUNTING DETAILS 1 1/2" = 1'-0"CROSS SECTION 3'-0 3/8" O.C. CROSS SECTION SIGN AND PANEL ELEVATION (INTERIOR VIEW) SIGN PLAN TOP VIEW SIGN FRAME SECTION 1/8" SS FRAME 45°2'-8"2'-0 3/8"3/4", TYP1"3/16 3/16 6'-2 3/8" O.C. 4", TYP 3/16" SS SUPPORT PLATE INTERIOR FRAME EDGE 24" x 36" INTERPRETIVE SIGN (BY OTHERS) 9 1/4"1'-4 1/2"1'-10 3/4"1'-4 1/2" 3 1/2"3 1/2" 3"3" 1/8" SS FRAME SIGN FRAME PLAN 3/16" SS SUPPORT PLATE WELDED TO SS FRAME REMOVABLE BOTTOM PANEL W/ VANDAL RESISTANT SCREWS 1/8" SS SIGN FRAME FRP LUMBER HANDRAIL WEBNET PANEL FRAME CONCRETE CAP FRP SUPPORT PLATE MID RAIL AND PLATE SUPPORT 3/16" SS SUPPORT PLATE FRP LUMBER HANDRAIL WELD SUPPORTS TO PLATE INTERIOR EXTERIOR 105° DUAL POSTS BEYOND 2X3 FRP LUMBER ROUNDED SIGN FRAME WITH TAMPER PROOF STAINLESS STEEL WOOD SCREWS 2X3 FRP LUMBER SIGN FRAME WITH TAMPER PROOF STAINLESS STEEL SCREWS 1/8" x 1 1/2" x 1 1/2" SS ANGLE 1/8" x 1 1/2" x 1 1/2" SS ANGLE WELDED TO SS FRAME - SECURE FRP WITH VANDAL RESISTANT SCREWS 3/4" REMOVABLE BOTTOM PANEL W/ VANDAL RESISTANT BOLTS - PLACE HEADS ON FRONT SIDE AT 6" O.C. WELD NUT TO FRAME AT 6" O.C. 1 P-PA-COU-INTE-01 RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:54 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L03.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202INTERPRETIVE SIGN FRAME MOUNTING DETAILS4-SCALE: NTS R-420216 OVERLOOK PLAN ELEVATION & SECTIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT SS WEBNET FRAME CLAMP PRE FAB SS WEBNET PANEL 2" SS ROUND POSTS 3x10 FRP LUMBER HANDRAIL WITH 1/2"R EDGES, WOOD GRAIN ALL SIDES SS REINFORCING PLATE - SEE STRUCTURAL SS VANDAL RESISTANT FASTENERS WATER SIDETRAIL SIDE 65°1 3/8" (TYP) 1 1/4" SS RAIL SUPPORT/WEBNET FRAME 1.5MM SS CABLE 2 " WOVEN WIRE MESH ANCHORING SLOT FOR CABLE MESH SS CLASPS NOTE: REFER TO SPECIFICATIONS FOR INSTALLATION AND MATERIAL INFORMATION. SS WEBNET 3x10 FRP LUMBER HANDRAIL 6" (4) 2" SS ROUND POSTS3" SS REINFORCING PLATE - SEE STRUCTURAL 1 1/4" SS TOP SUPPORT POST TOP SUPPORT ELEVATION ℄ SS REINFORCING PLATE - SEE STRUCTURAL FRP LUMBER HANDRAIL 65° CONNECTION TO REINFORCING PLATE 2 - SS WEBNET 65° CONNECTION TO REINFORCING PLATE 2 - MID POST RAIL SUPPORT (BEYOND)3 - 4 - PRE FAB SS WEBNET PANEL 3- PRE FAB SS WEBNET PANEL 3- 2-3 1 /2" SS HANDRAIL END POST (BACKSIDE)1 L-1 L-3 SCALE: 2"=1'-0" FRP LUMBER HANDRAIL (SECTION)2 L-1 L-2L-3 SCALE: 2"=1'-0" PRE FAB SS WEBNET PANELS3 L-1 L-2 SCALE: 2"=1'-0" SS MID POST RAIL SUPPORT4 L-1 L-2 SCALE: 2"=1'-0" SS WEBNET FRAME CLAMP 4"TYP4'-6 3/4" 14'-11 1/2" 7'-5 3/4"7'-5 3/4"7'-5 3/4" 12'-0-1/2" 7'-5 3/4" 8'-8-1/2"14'-11 1/2" 5'-3 1/2"3'-5"7'-5 3/4" NOTES: 1.DIMENSIONS ARE APPROXIMATE TO CENTERLINE OF POSTS AND SUPPORTS. 3.PROVIDE EQUAL SPACING BETWEEN LUMBER CLADDING (FASCIA) MEMBERS - BOTTOM FASCIA IS TO BE FLUSH WITH BOTTOM OF GIRDER AND SPACE IS TO BE PROVIDED AT THE TOP FASCIA BELOW THE CONCRETE CAP OVER THE GIRDER. 4.PROVIDE 1" CLEAR SPACE BETWEEN RUNNING BOND JOINTS. BOLT PATTERN ENLARGEMENTINTERMEDIATE BOLTS FRP CLADDING IS TO BE FLUSH WITH GIRDER END 6- ANGLES AT OVERLOOKRUNNING BOND STAGGERED JOINTS, TYP 6"2", TYPSEE STRUCTURAL FOR BOLT FASTENERS BOLT PATTERN AT JOINT 1" GAP AT JOINT (NOT SHOWN) FRP LUMBER TYP. CLADDING LAYOUT5 L-1 SCALE: 1/2"=1'-0" BOLT PATTERN ENLARGEMENT6 -SCALE: 1 1/2"=1'-0" ℄ BRIDGE RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:55 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L04.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420217 RAILING DETAILS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT OVERLOOK CONCRETE BRIDGE APPROACH CONCRETE BRIDGE APPROACH EMBANKMENT BOULDERS AT EDGE OF GRAVEL SHOULDER (TYP) BRIDGE PLANTING PLAN1--SCALE: HANDRAILING, TYP GRAVEL SHOULDER GRAVEL SHOULDER ASPHALT APPROACH EXISTING TRAIL ASPHALT APPROACH 7L-7 TYP BRIDGE PLANTING AND LANDSCAPE NOTES: 1.COORDINATE WORK SHOWN ON THIS DRAWING WITH EXISTING SITE FEATURES AND/OR PROPOSED SITE WORK. 2.VERIFY WITH THE CITY AND UTILITY COMPANIES THE LOCATIONS AND ELEVATIONS OF ALL EXISTING UTILITIES PRIOR TO CONSTRUCTION AND VERIFY LIMITS OF WORK. CALL UTILITY LOCATE SERVICE 72 HOURS PRIOR TO CONSTRUCTION. EXERCISE CARE TO PROTECT EXISTING UNDERGROUND UTILITIES AND AVOID DISTURBING OR DAMAGING THEM. REFER TO CIVIL DRAWINGS FOR LOCATIONS. ANY DAMAGE RESULTING FROM THIS WORK SHALL BE RESTORED AT THE CONTRACTOR'S EXPENSE. 3.EXAMINE FINISH SURFACE, GRADES, TOPSOIL QUALITY AND DEPTH AND NOTIFY THE CITY OF ANY CONDITIONS WHICH MAY BE HARMFUL TO PLANT LIFE, SUCH AS POOR DRAINAGE, HAZARDOUS MATERIALS, ETC. AND PROVIDE RECOMMENDATIONS AND/OR REQUEST INFORMATION HOW TO ADDRESS THE SPECIFIC SITUATION. DO NOT PERFORM ANY WORK UNTIL RESOLUTIONS ARE ACCEPTED. 4.ONLY REMOVE TREES IDENTIFIED IN PLANS FOR DEMOLITION DURING CONSTRUCTION. DO NOT REMOVE OTHER TREES WITHOUT THE EXPRESS WRITTEN CONSENT OF THE CITY. REFER TO CIVIL DRAWINGS FOR DEMOLITION.PRESERVE AND PROTECT EXISTING TREES TO REMAIN. 5.CLEAR AND GRUB ALL LANDSCAPE AREAS IMPACTED BY CONSTRUCTION BEFORE TOPSOIL, MULCH, AND PLANTINGS ARE INSTALLED. AVOID REMOVAL OF EXISTING NATIVE VEGETATION TO THE GREATEST EXTENT POSSIBLE. INSTALL EROSION CONTROL MEASURES ON ALL EXPOSED SOILS PER CURRENT BMP's TO PREVENT EROSION DURING CONSTRUCTION. 6.LOCATE LANDSCAPE BOULDERS SO PLANTING POCKETS CAN BE ESTABLISHED TO ACCOMMODATE PROPOSED PLANTS. FILL VOIDS WITH TOPSOIL TO A DEPTH OF 24". INSTALL PLANTS BETWEEN VOIDS OF NEW AND EXISTING ROCKERY. 7.REFER TO CIVIL DRAWINGS FOR PLACEMENT OF BOULDERS AT WATER EDGE. 8.TOP DRESS PLANT PITS WITH 3-INCH LAYER OF BARK MULCH. KEEP MULCH 2-3 INCHES FROM STEMS OR TRUNKS AND MAINTAIN POSITIVE DRAINAGE IN ALL PLANTED AREAS. 9.ADJUST PLANTING IN FIELD TO FINAL LAYOUT OF LANDSCAPE BOULDERS, SITE UTILITIES, AND SITE FURNISHINGS. 10.CAP EXISTING IRRIGATION DAMAGED OR EXPOSED DURING CONSTRUCTION OPERATIONS AND REPAIR WITH NEW EQUIPMENT THAT MATCHES THE EXISTING. ENSURE IRRIGATION COVERAGE TO NEW PLANTINGS. 11.SEE DRAWING L-7 FOR PLANTING DETAILS 1-2 AND DRAWING IR-1 FOR IRRIGATION PLAN. 1" = 5'feet 10550 scale PROPOSED CONCRETE PROPOSED GRAVEL RELOCATED BOULDERS ORDINARY HIGH WATER MARK EXISTING CONTOURS EXISTING LIGHT POLE EXISTING JUNCTION BOX EXISTING DECIDUOUS TREE LEGEND BRIDGE CENTERLINE GRATING SHRUBS QTY BOTANICAL NAME COMMON NAME SIZE SPACING 46 GAULTHERIA SHALLON SALAL 1 GAL 24" o.c. 12 ROSA PISOCARPA CLUSTERED WILD ROSE 1 GAL 42" o.c. PLANT SCHEDULE RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:56 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L05.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420218 PLANTING PLAN AT BRIDGE GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT © 2020 Microsoft Corporation © 2020 Maxar ©CNES (2020) Distribution Airbus DS LAKE WASHINGTON PROPOSED BRIDGE OHP X feet 4020200 scale APPROX. 10' OFFSET EXIST. LOGS AT SHORELINE EXIST. ASPHALT PATH EDGE EXIST. CONIFER ~156' TO EDGE OF P L A N T I N G A R E A EXIST. BEACH ACCESS EXIST. WETLAND APPROX. OHWM CULTIVATE PLANT PITSOUTSIDE OF TREE ROOTS WETLAND BUFFER TREES CODE QTY BOTANICAL NAME COMMON NAME SIZE REMARKS PS 5 PICEA SITCHENSIS SITKA SPRUCE 5 GAL. SL 2 SALIX LUCIDA PACIFIC WILLOW 5 GAL.STRAIGHT SINGLESTEM SHRUBS CODE QTY BOTANICAL NAME COMMON NAME SIZE REMARKS AC 9 ACER CIRCINATUM VINE MAPLE 5 GAL.3 CANES (MIN.) FP 5 FRANGULA PURSHIANACASCARA BUCKTHORN5 GAL. MP 3 MALUS FUSCA WESTERN CRAB APPLE5 GAL. NORTH PLANT SCHEDULE ~2 0 ' ~20' PLANTING AREA LEGEND EXIST JUNCTION BOX EXIST LIGHT POLE EXIST TREES WETLAND BUFFER APPROXIMATE ORDINARYHIGH WATER MARK EXIST OVERHEAD POWER LINE EXIST CHAIN LINK FENCE ORGANIC MULCH PLANTING AREA 1.PLANTING AND MAINTENANCE SHALL CONFORM TO THE IMPLEMENTATIONGUIDE FOR RESTORATION AND PERMITTING FOR LAKE WASHINGTON AND LAKESAMMAMISH, JULY 25, 2019. 2.COORDINATE PLANTING LOCATIONS AND INSTALLATION WITH THE CITY OFRENTON CAPITAL PROJECTS MANAGER WITH PARKS PLANNING & NATURAL RESOURCES AND THE CITY URBAN FORESTER. 3.CALL 811 UTILITY LOCATE SERVICE 72 HOURS PRIOR TO IRRIGATION/PLANTING INSTALLATION. EXERCISE CARE TO PROTECT UNDERGROUND UTILITIES ANDAVOID DISTURBING OR DAMAGING THEM IF PRESENT. 4.EXAMINE FINISH SURFACE, GRADES, TOPSOIL QUALITY AND DEPTH AND NOTIFYTHE CITY OF RENTON REPRESENTATIVE OF ANY CONDITIONS WHICH MAY BEHARMFUL TO PLANT GROWTH. 5.THE EXISTING LAWN IN THE PROPOSED PLANTING AREA SHALL BE STRIPPEDAND ROTOTILLED PRIOR TO IRRIGATION, PLANTING, AND MULCHINGOPERATIONS. 6.SEE DRAWING L-7 FOR PLANTING AND TOPSOIL DETAILS 3-6. 7.TOP DRESS ENTIRE PLANTING BED AREA WITH 3-INCH LAYER OF BARK MULCH.KEEP MULCH 2-3 INCHES FROM STEMS OR TRUNKS. 8.LOOSELY WRAP WILLOW AND VINE MAPLES WITH BEAVER DETERRENT ASSHOWN ON THE DETAILS. 9.SEE DRAWING IR-2 FOR IRRIGATION PLAN AND MODIFICATION OF EXISTINGIRRIGATION ZONES. NORTH PLANTING NOTES: NORTH PLANTING PLAN1 --SCALE: 1" = 20' ~103' ~26' RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 10:59 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L06.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420219 PLANTING PLAN NORTH AREA GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT SHRUB PLANTING SCALE: NTS1- ROOT BALL -ROUGHEN ROOTSPRIOR TO PLANTING EXISTING SOIL MULCH DEPTH ASSPECIFIED BOTTOM OF ROOT BALLRESTS ON EXISTING ORRECOMPACTED SOIL SET CROWN OF ROOTBALL1" ABOVE FINISH GRADE PREPARED TOPSOIL A 2X'S WIDEST DIMENSIONOF ROOT BALL SCARIFY SIDESAND BOTTOM SHRUB ROOT BALL - ROUGHEN ROOTS MASSPRIOR TO PLANTING EXISTING SOIL CONSTRUCT ROUND TOPSOIL BERM AT ROOT BALL PERIPHERY - BERM SHALL BE 4"ABOVE ROOTBALL SURFACE AND 8" WIDE MULCH DEPTH AS SPECIFIED ORIGINAL SLOPE SHOULD PASSTHROUGH THE POINT WHERE THE TRUNK MEETS SUBSTRATE/SOIL PRIOR TO MULCHING, LIGHTLYTAMP SOIL AROUND THE ROOT BALLIN 6" LIFTS TO BRACE SHRUB - DONOT OVER COMPACT. WHEN THEPLANTING HOLE HAS BEENBACKFILLED, POUR WATER AROUNDTHE ROOT BALL TO SETTLE THE SOIL. SLOPE SIDES OF LOOSENED SOIL TOPSOIL - DIG AND TURN THE SOIL TOREDUCE THE COMPACTION TO THEAREA AND DEPTH SHOWN BOTTOM OF ROOT BALL RESTS ONEXISTING OR RECOMPACTED SOIL SECTION VIEW 2X'S WIDEST DIMENSIONOF ROOT BALL SHRUB PLANTING ON SLOPESCALE: NTS2- DO NOT CUT LEADER, PRUNE DAMAGED WOOD PRIOR TO PLANTING CROWN 1" ABOVE GRADE 3 INCHES WOOD CHIP MULCH FIRMLY TAMP SOIL AROUND ROOT BALL SO ROOT BALL DOES NOT SHIFT NOTE: 1.SCARIFY BOTTOM AND SIDES OF HOLE PRIOR TO PLANTING. 2.TREE SHALL BE PLANTED SUCH THAT THE TRUNK FLARE IS VISIBLE AT THE TOP OF THE ROOT BALL. NO MULCH SHALL COME IN CONTACT WITH THE TREE TRUNK. MATCH TOP OF ROOT FLARE TO EXISTING GRADE FINISHED GRADE NATIVE EVERGREEN TREE PLANTING DETAIL PREPARED OR NATIVE TOPSOIL 3 INCHES WOOD CHIP MULCH PLACE ROOT BALL ON UNEXCAVATED OR TAMPED SOIL FIRMLY TAMP SOIL AROUND ROOT BALL SO ROOT BALL DOES NOT SHIFT TOP OF ROOTBALL SHALL BE 1" ABOVE SURROUNDING GRADE FINISHED GRADE PREPARED OR NATIVE TOPSOIL NOTE: 1.SCARIFY BOTTOM AND SIDES OF HOLE PRIOR TO PLANTING. 2.EACH TREE SHALL BE PLANTED SUCH THAT THE TRUNK FLARE IS VISIBLE AT THE TOP OF THE ROOT BALL. NO MULCH SHALL COME IN CONTACT WITH THE TREE TRUNK. SCARIFY SIDES OF PLANTING PIT NATIVE DECIDUOUS TREE PLANTING DETAIL BEAVER DETERRENT - LOOSELY WRAP WITH 3 FOOT HIGH, GREEN PVC COATED WELDED WIRE MESH (1"x3" OPENING) AND MAINTAIN 6" CLEARANCE ON ALL SIDES OF PLANT SET TOP OF POTTING SOIL 1" ABOVE FINISHED GRADE REMOVE CONTAINER FROM ROOT BALL, ROUGHEN ROOTBALL TO LOOSEN ROOTS 3" BARK MULCH DEPTH FINISHED GRADE PREPARED OR NATIVE TOPSOIL NATIVE OR COMPACTED SOIL NOTE: 1.SCARIFY BOTTOM AND SIDES OF HOLE PRIOR TO PLANTING. FERTILIZER TABLETS NATIVE SHRUB PLANTING DETAIL BEAVER DETERRENT - LOOSELY WRAP WITH 3 FOOT HIGH, GREEN PVC COATED WELDED WIRE MESH (1"x3" OPENING) AND MAINTAIN 6" CLEARANCE ON ALL SIDES OF PLANT 2X'S WIDEST DIMENSION OF ROOT BALL 2X'S WIDEST DIMENSION OF ROOT BALL PLACE ROOT BALL ON UNEXCAVATED OR TAMPED SOIL 2X'S WIDEST DIM. OF ROOT BALL SCARIFY SIDES OF PLANTING PIT FERTILIZER TABLETS FERTILIZER TABLETS FERTILIZER TABLETS FERTILIZER TABLETS RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:00 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\03_L07.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202NATIVE EVERGREEN TREE PLANTING SCALE: NTS3-NATIVE DECIDUOUS TREE PLANTING SCALE: NTS4-NATIVE SHRUB PLANTING SCALE: NTS5- PLACE BOULDERS ON FIRM BASE AND CLUSTER FOR A NATURAL APPEARANCE NOTES: 1.UTILIZE EXISTING ONSITE BOULDER AND SUPPLEMENT AS REQUIRED MATCHING TYPE AND SIZE. 2.SUPPLEMENTAL BOULDERS SHALL BE ACCEPTED BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION. 3.PLACEMENT HEIGHT OF BOULDERS VARY - BOULDERS SHALL BE PLACED IN GROUND 1/3 to 1/2 OF THEIR TOTAL HEIGHT FOR SIZES ABOVE 30-42" TALL AND 1/4 HEIGHT FOR BOULDERS THAT ARE LESS THAN 24" TALL. PROVIDE VARIOUS SITTING HEIGHTS AT GRAVEL EDGE GRAVEL SHOULDER AT PATH PER CIVIL BOULDERS ON SLOPE AND NEAR PATH PROVIDE PLANT POCKETS IN BOULDER CLUSTER VOIDS WITH 24" DEPTH OF TOPSOIL COMPACTED SUBGRADE EMBANKMENT BOULDERS SCALE: NTS 7L-1, L-5 BARK MULCH 14"-24"TILLER PROVIDE POSITIVE DRAINAGE 1'-0"APPLY SOIL AMENDMENTS AS RECOMMENDED BY THE SOIL ANALYSIS EVENLY SPREAD IMPORTED TOPSOIL 6" DEEP MIN. NATIVE SOIL AFTER SOD REMOVAL SOIL PREPARATION - PLANTING BED SCALE: NTS 6- NOTES: 1.IMPORT TOPSOIL TO BE SANDY LOAM SOIL FREE OF ROCKS, ROOTS, AND FOREIGN MATERIALS. 2.FERTILIZER APPLICATION SHOULD BE DELAYED IF PLANTING DOES NOT OCCUR WITHIN 2-3 DAYS OF FERTILIZING. 3.FROZEN MATERIALS OR MATERIALS GREATER THAN 1" DIA. SHOULD BE REMOVED. 4.FINISH GRADE FOR ALL PLANTING BEDS ALONG WALKS OR CURBS SHOULD BE 3" LOWER THAN THE SURFACE. R-420220 PLANTING AND LANDSCAPE DETAILS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT CONCRETE RELOCATED BOULDERS EMBANKEMENT BOULDERS, TYP IRRIGATION PLAN1IR-1 SCALE: PEDESTRIAN BRIDGE GRAVEL SHOULDER GRAVEL SHOULDER LEGEND ASPHALT APPRAOCH EXISTING TRAIL ASPHALT APPROACH 1" = 5' feet 10550 scale EXISTING IRRIGATION HEADS, TYP EXISTING IRRIGATION HEADS, TYP EXISTING PVC LATERAL LINE, TYP EXISTING PVC LATERAL LINE, TYP RELOCATD EXISTING IRRIGATION ELECTRICAL WIRE IN 2" CONDUIT RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:02 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\04_IR01.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202IRRIGATION NOTES: 1.CONTRACTOR SHALL REVIEW AS-BUILT DRAWINGS RELATIVE TO THE EXISTING UNDERGROUND UTILITIES AND EXISTING IRRIGATION SYSTEM. CONTRACTOR SHALL LOCATE HEADS, LATERALS AND IRRIGATION ELECTRICAL LINES PRIOR TO EXCAVATION OF AREAS. CONTRACTOR SHALL NOTIFY OWNER IMMEDIATELY IF UTILITIES NOT SHOWN ON THE AS-BUILT DOCUMENTS ARE ENCOUNTERED. 2.IRRIGATION CONTRACTOR IS RESPONSIBLE FOR TEMPORARILY RELOCATING THE ELECTRICAL LINE (LOCATED IN A 2" CONDUIT THAT CROSSES THE EXISTING BRIDGE) TO MAINTAIN IRRIGATION SYSTEM OPERATION FROM THE EXISTING CONTROLLER. CONTRACTOR SHALL COORDINATE INTERRUPTION OF ELECTRICAL SERVICE WITH THE OWNER. CONTRACTOR SHALL BE RESPONSIBLE FOR SUPPLYING MATERIALS AND LABOR TO PROVIDE TEMPORARY AND NEW ELECTRICAL SERVICE. ALL ELECTRICAL WORK SHALL BE PER LOCAL CODE. NEW CONNECTIONS SHALL BE MADE IN ELECTRICAL SPLICE BOXES. NEW ELECTRICAL SERVICE LINE LOCATION SHALL BE COORDINATED WITH THE BRIDGE CONTRACTOR. 3.COORDINATE WORK WITH ALL TRADES TO AVOID CONFLICTS WITH OTHER SITE IMPROVEMENTS. 4.PRESERVE AND PROTECT EXISTING TREES TO REMAIN. 5.IRRIGATION LINES IMPACTED DURING CONSTRUCTION SHALL BE FLUSHED AND CAPPED SO THAT THE SYSTEM CAN REMAIN IN OPERATION DURING CONSTRUCTION. 6.CONTRACTOR IS RESPONSIBLE FOR REPLACING EXISTING RAINBIRD IRRIGATION HEADS AND PVC LATERAL LINES WITH NEW TO MATCH EXISTING THAT ARE DISTURBED DURING CONSTRUCTION. CONTRACTOR SHALL ENSURE ADEQUATE WATER DISTRIBUTION TO NEW PLANTINGS. SEE DETAILS THIS SHEET FOR 7.AFTER REPAIRS ARE MADE, THE EXISTING IRRIGATION LINES HALL BE FLUSHED TO REMOVE ANY DEBRIS AND TO ENSURE THAT HEADS ARE OPERATING PROPERLY. 8.IRRIGATION EQUIPMENT NOT OTHERWISE DETAILED THAT MAY BE PRESENT, SHALL BE INSTALLED PER MANUFACTURER'S RECOMMENDATIONS AND SPECIFICATIONS. 9.IRRIGATION AND ELECTRICAL SLEEVES WHERE PRESENT SHALL MATCH EXISTING. ALL SLEEVES SHALL EXTEND AT LEAST 12" BEYOND CONCRETE STRUCTURES. ALLOW AT LEAST 4" - 6" FROM END OF SLEEVES TO FIRST FITTING ON IRRIGATION LINE. ALL SLEEVES SHALL BE 24" BELOW AND BE INSTALLED PRIOR TO CONCRETE OR PAVING WORK IF REQUIRED. 10.ALL PIPES SHALL BE TRENCHED AND BEDDED ON ALL SIDES WITH ROCK FREE (3/8" MINUS) MATERIAL. IMPORT SAND IF NECESSARY. BACKFILL IN TWO OR MORE COMPACTED LIFTS. SETTLING OF TRENCHES SHALL BE BROUGHT TO FINISH GRADE. 11.SEE DRAWING IR-3 FOR IRRIGATION DETAILS. R-420221 IRRIGATION PLAN SCHEDULE & NOTES GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT NORTH IRRIGATION PLAN SCALE: 1" = 20' LAKE WASHINGTON PROPOSED BRIDGE feet 4020200 scale EXIST. ASPHALT PATH EDGE EXIST. CONIFER - HAND DIG IRRIGATION WITHIN 15' OF TREE EXIST. BEACH ACCESS APPROX. OHWM SET NEW SPRAY HEADS 6 INCHES FROM EDGE OF ASPHALT RELOCATE EXISTING ROTOR SPRAY HEAD TO EDGE OF PROPOSED NEW PLANTING AREA AND ADJUST SPRAY LIMITS TO ACCOMMODATE NEW PLANTING AREA EXISTING ROTOR SPRAY HEAD IN THIS AREA TO BE RE-ADJUSTED TO AVOID OVER WATERING PROPOSED NEW PLANTING AREA NEW BATTERY OPERATED IRRIGATION REMOTE CONTROL VALVE - CONNECT TO EXISTING 4 INCH MAINLINE37.01 112" 12" 34" 34"1" 12" 12"2" REMOVE EXISTING ROTOR SPRAY HEADS AND CONNECTING LATERALS FROM NEW PLANTING AREA EXIST. 4" IRRIGATION MAINLINEEXIST. IRRIGATION VALVE EXIST. IRRIGATION VALVE EXIST. IRRIGATION LATERAL EXIST. IRRIGATION LATERAL 34"34" 12"1" 1"12" 34" 114" SYMBOL MANUFACTURER/MODEL/DESCRIPTION QTY PSI DETAIL RAIN BIRD 1806-SAM-PRS 15 SERIES MPR 20 30 SHRUB SPRAY 6.0" POP-UP SPRINKLER WITH CO-MOLDED WIPER SEAL. 1/2" NPT FEMALE THREADED INLET. WITH SEAL-A-MATIC CHECK VALVE, AND PRESSURE REGULATING DEVICE. SYMBOL MANUFACTURER/MODEL/DESCRIPTION QTY DETAIL RAIN BIRD PGA GLOBE 1 1", 1-1/2", 2" ELECTRIC REMOTE CONTROL VALVE, GLOBE. IRRIGATION LATERAL LINE: PVC SCHEDULE 40 357.4 L.F. PIPE SLEEVE: PVC SCHEDULE 40 12.0 L.F. Q TQ FHT #" # Valve Number Valve Size Valve Flow Valve Callout # IRRIGATION SCHEDULE RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:13 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\04_IR02.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-42021.IRRIGATION AND MAINTENANCE SHALL CONFORM TO THE IMPLEMENTATION GUIDE FOR RESTORATION AND PERMITTING FOR LAKE WASHINGTON AND LAKE SAMMAMISH, JULY 25, 2019. 2.EXISTING IRRIGATION SHOWN WAS REFERENCED FROM AS-BUILTDRAWINGS THAT ARE OLD. CONTRACTOR SHALL NOTE THAT THEEXISTING IRRIGATION SHOWN MAY NOT REPRESENT ACTUALCONDITIONS ON SITE. CONTRACTOR WILL NEED TO VERIFY THELOCATION OF EXISTING EQUIPMENT IN THE FIELD PRIOR WITH PARKSMAINTENANCE PERSONNEL PRIOR TO MAKING THE NECESSARYIRRIGATION IMPROVEMENTS. 3.CONTRACTOR IS RESPONSIBLE TO REPAIR ALL EXISTING IRRIGATIONTHAT IS IMPACTED BY NEW IMPROVEMENTS AND VERIFY THAT ALLIRRIGATION ZONES WORK PRIOR TO THE PROJECT BEING DEEMED COMPLETE. 4.CALL UTILITY LOCATE SERVICE 72 HOURS PRIOR TO IRRIGATION INSTALLATION. EXERCISE CARE TO PROTECT UNDERGROUND UTILITIES AND AVOID DISTURBING OR DAMAGING THEM IF PRESENT. 5.THE EXISTING IRRIGATION CONTROLLER IS LOCATED SOUTH OF THE BRIDGE IN THE COMFORT STATION MAINTENANCE ROOM. 6.CONTRACTOR SHALL CONTACT THE CITY OF RENTON PARKS FACILITIES SUPERVISOR AND COORDINATE IRRIGATION RUN TIMES WITH THE EXISTING IRRIGATION ZONES. 7.SEE DRAWING IR-3 FOR IRRIGATION DETAILS. 8.IT IS UNCLEAR IF THE ORIGINAL IRRIGATION INSTALLATION INCLUDED SWING PIPES OR FUNNY PIPE FOR THE CONNECTION TO THE IRRIGATION HEAD. CONTRACTOR IS REQUIRED TO OBSERVE THE EQUIPMENT INSTALLATION DURING DEMOLITION AND MATCH THE EXISTING CONNECTIONS FOR CONSISTENCY. NORTH IRRIGATION NOTES:XXXXXXXXXXXXXXXXXR-420222 IRRIGATION PLAN SCHEDULE & NOTES GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:14 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\04_IR03.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202TRENCH DETAIL SCALE: N.T.S 3IR-3PIPE & WIRE SLEEVING DETAIL SCALE: N.T.S. 1 IR-3 NOTE: 1.TEMPORARY SLEEVE MARKER (2X4 OR PVC PIPE) AND TEMP. PVC SLEEVE CAP. TYPICAL24"12"-18"CONCRETE, ASPHALT OR OTHER HARDSCAPE- SEE PLANS FOR CONDITIONS CONTROL WIRES SAND BACKFILL, TYP- SEE SPECIFICATIONS SUBGRADE COMPACTED BASE ROCK PVC PIPE PIPE SLEEVE, SEE PLANS FOR SIZE 1/2" REBAR MARKER (AT EACH END OF SLEEVE) WRAP WITH TRACE WIRE 4" 2" 2" MIN 2" MIN2" NOTE: 1.SLEEVE BELOW ALL HARDSCAPE ELEMENTS WITH SCHEDULE 40 PVC PIPE 2.FOR PIPE AND WIRE BURIAL DEPTHS SEE SPECIFICATIONS. 2" PVC PIPE SPACERS SET VERTICAL @ 10' O.C. SAND BACKFILL PVC MAINLINE PIPE, SEE PLANS FOR SIZE YELLOW TRACE WIRE (TYP) PVC LATERAL PIPE- SEE PLANS FOR SIZE CAUTION TAPE TOPSOIL BACKFILL FLUSH FINISH GRADE 12" FLUSH FINISH GRADE IRRIGATION ROTOR HEAD WITH CHECK VALVE SWING JOINT: 12" SWING FUNNY PIPE, BARBED ELBOWS (2), AND MARLEX STREET ELBOW LATERAL TEE OR ELBOW LATERAL PIPE ROTARY POPUP SPRINKLER HEAD SCALE: N.T.S. 2IR-3 SPRAY HEAD4IR-3 NTS BATTERY OPERATED CONTROLLER5 IR-3 NTS POP-UP SPRAY HEAD PVC SCH. 40 STREET ELL MARLEX STREET ELL. TO BE THE SAME SIZE AS IRRIGATION HEAD INLET. POLYETHYLENE TUBE- LENGTH AS REQUIRED (5' MAX) PVC SCH. 40 TEE OR ELL MARLEX STREET ELL LATERAL LINE PLANTING BED WITH MULCH TOP OF SPRAY HEAD SLIGHTLY ABOVE MULCH AFTER SETTING IRRIGATION CONTROLLER (HUNTER NODE-BT OR APPROVED EQUAL) AND MOUNTING HARDWARE PER PLAN BATTERY OPERATED VALVE PER PLAN VALVE BOX PER PLAN MAIN LINE PER PLAN MAIN LINE RISER PER PLAN LATERAL LINE PER PLAN DETAIL LEGEND: 1 2 3 4 5 6 9 10 5 4 GRAVEL BASE, DEPTH AS SPECIFIED FILTER FABRIC BRICK FINISHED GRADE 7 8 9 6 78 3 10 1 2 R-420223 IRRIGATION NOTES AND DETAILS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:15 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S01.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202CODES, SPECIFICATIONS, STANDARDS, PRACTICES 1.AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICALS (AASHTO) "LRFD GUIDE SPECIFICATIONS FOR THE DESIGN OF PEDESTRIAN BRIDGES", DECEMBER 2009. 2.AASHTO "LRFD BRIDGE DESIGN SPECIFICATIONS", NOVEMBER 2017. 3.AMERICAN CONCRETE INSTITUTE (ACI) “BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE”, ACI 318-19. 4.ACI "SPECIFICATIONS FOR STRUCTURAL CONCRETE", ACI 301-20. 5.AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC) “SPECIFICATION FOR STRUCTURAL STEEL BUILDINGS”, AISC 360-16 6.AMERICAN WELDING SOCIETY (AWS) “BRIDGE WELDING CODE”, AWS D1.5-2020 AND "STRUCTURAL WELDING CODE - REINFORCING STEEL" AWS D1-4-2018. 7.WASHINGTON STATE DEPARTMENT OF TRANSPORTATION “STANDARD SPECIFICATION FOR ROADS, BRIDGES, AND MUNICIPAL PUBLIC WORKS CONSTRUCTION”, 2020 EDITION. (WSDOT SPEC) DESIGN LOADS 1.DEAD LOADS: ACTUAL WEIGHT OF MATERIALS 2.UNIFORM PEDESTRIAN LIVE LOAD ON BRIDGE: 90 PSF 3.DESIGN VEHICLE: LOAD COMBINATIONS STRENGTH I: (1.25MAX,0.9MIN)DC+1.75(LL OR PED LL) STRENGTH III: (1.25MAX,0.9MIN)DC+1.0WS EXTREME EVENT I:1.0DC+1.0(LL OR PED LL) SERVICE I:1.0DC+1.0(LL OR PED LL) SERVICE II:1.0DC+1.3(LL OR PED LL) DC = DEAD LOAD OF STRUCTURAL COMPONENTS AND NON STRUCTURAL ATTACHMENTS LL = VEHICULAR LIVE LOAD PED LL = PEDESTRIAN LIVE LOAD WS = WIND ON STRUCTURE PILING 1.PIPE PILE MATERIAL: ASTM A 252, GRADE 3, YIELD STRENGTH = 50 KSI 2.COAT PIPE PILES IN ACCORDANCE WITH THE SPECIFICATIONS. REPAIR COATING IN ACCORDANCE WITH THE SPECIFICATIONS. 3.DRIVEN PILE REQUIRED CAPACITIES: TENSION: 33 KIPS (ULTIMATE) COMPRESSION: 135 KIPS (ULTIMATE), 105 KIPS (WORKING) 4.NOTIFY THE CITY IF ANY PILE IS DRIVEN BEYOND THE TOLERANCES OR DOES NOT ACHIEVE THE PILE TIP ELEVATIONS NOTED OR ON THE DRAWINGS. METAL FABRICATIONS 1.STRUCTURAL PLATES, SHAPES, AND W-SHAPES FOR BRIDGE: ASTM A 709, YIELD STRENGTH = 50 KSI. 2.HSS SECTIONS: ASTM A1085, YELD STRENGTH = 50 KSI 3.CHANNELS AND ANGLES: ASTM A36, YIELD STRENGTH = 36 KSI 4.PIPE: ASTM A53, GRADE B. 5.THREADED RODS: ASTM F1554, GRADE 55. 6.BOLTS: ASTM F3125 GRADE A325 TYPE 1 OR 3, UNLESS OTHERWISE NOTED. 7.NUTS: HEAVY HEX, ASTM A 563, GRADE SUITABLE FOR THE TYPE OF ROD. PROVIDE DOUBLE NUTS OR A HEAVY HEX NUT AND LOCK NUT. 8.WASHERS: ASTM F 844, WIDE SERIES, MAXIMUM THICKNESS. 9.PERFORM WELDING IN ACCORDANCE WITH AWS D1.1 USING CERTIFIED WELDERS, WELDING OPERATORS, AND TACK WELDERS AND QUALIFIED JOINT WELDING PROCEDURES. PREPARE JOINTS TO FIT PROPERLY FOR THE APPROPRIATE WELD AS INDICATED ON THE DRAWINGS. INSPECT ALL WELDS. 10.COAT STEEL MATERIALS, FABRICATIONS, AND ASSEMBLIES IN ACCORDANCE WITH THE SPECIFICATIONS. 11.RESTORE COATINGS DAMAGED BY WELDING, HANDLING, OR OTHER CAUSES IN ACCORDANCE WITH THE SPECIFICATIONS. CONCRETE ANCHORS 1.MATERIAL: HILTI HIT-RE 500-SD EPOXY ADHESIVE ANCHORING SYSTEM WITH HOT-DIP GALVANIZED FASTENERS. 2.INSTALL IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS. 3.DRILL HOLES USING A PERCUSSION DRILL WITH A CARBIDE BIT. 4.SET ANCHORS USING TEMPLATES VERIFIED WITH THE FABRICATION ANCHOR SPACING. CONCRETE 1.REINFORCED CONCRETE: MINIMUM 28-DAY COMPRESSIVE STRENGTH = 5000 PSI 2.CONCRETE IN-FILL FOR PIPE PILES: MINIMUM 28-DAY COMPRESSIVE STRENGTH = 5000 PSI 3.REINFORCING STEEL: ASTM A 706, GRADE 60, DEFORMED. 4.GROUT: ASTM C 1107, MEETING THE FOLLOWING ADDITIONAL REQUIREMENTS. MINIMUM WORKING TIME = 30 MINUTES FLUID CONSISTENCY (ASTM C 939) = 25 TO 30 SECONDS MINIMUM COMPRESSIVE STRENGTH (28 DAYS) = 8000 PSI. 5.INSTALL CORNER BARS AT ALL CORNERS. MATCH THE NUMBER, SPACING, AND DIAMETER OF ALL HORIZONTAL REINFORCING STEEL AT THE CORNERS. 6.WELD ALL REINFORCING STEEL IN ACCORDANCE WITH AWS D1.4 USING CERTIFIED WELDERS AND QUALIFIED WELDING PROCEDURES. INSPECT ALL WELDS. 7.WELD HEADED STUDS USING AUTOMATICALLY TIMED WELDING EQUIPMENT IN ACCORDANCE WITH AWS D1.1. 8.DETAIL REINFORCING STEEL IN ACCORDANCE WITH ACI 315. REINFORCING STEEL BEND DIMENSIONS SHOWN ARE OUT TO OUT. USE SEISMIC HOOK DETAILS FOR TIES AND STIRRUPS UNLESS OTHERWISE SHOWN ON THE DRAWINGS. 9.LAP SPLICES FOR REINFORCING STEEL THAT IS LESS THAN 40 FEET IN LENGTH IS NOT PERMITTED. REINFORCING STEEL GREATER THAN 40 FEET IN LENGTH WILL BE ALLOWED WITH A MINIMUM LAP SPLICE LENGTH OF 50 TIMES THE DIAMETER OF THE BAR. 10.PROVIDE 3-INCHES OF CONCRETE COVER UNLESS OTHERWISE SHOWN ON THE DRAWINGS. CHAMFER EXPOSED CORNERS 3/4-INCH. CONCRETE (CONTINUED) 11.CONCRETE FORMING: SEE THE SPECIFICATIONS. FILL VOIDS LEFT BY CONES AND OTHER FORMWORK HARDWARE AFTER FORMS ARE REMOVED. FOR CHAIRS, SUPPORTS, AND SPACERS TO SUPPORT REINFORCING STEEL, SEE THE SPECIFIATIONS. PROVIDE CHAIRS, SUPPORTS, AND SPACERS AT INTERVALS LESS THAN 4 FEET ON CENTER UNLESS OTHERWISE ALLOWED BY THE CITY. 12.CONCRETE FINISHING: TERMINOLOGY IS DEFINED IN ACI 301. SLAB OR TOPPING SURFACES = LIGHT BROOM FINISH W/ STRIA OF 116" FORMED SURFACES = SMOOTH FORM FINISH SURFACES RECEIVING GROUT = SCRATCH FINISH 13.CONCRETE CURING: MOIST CURE CONCRETE SURFACES OR USE AN APPROVED CURING MEMBRANE IN ACCORDANCE WITH ACI 301 UNLESS A LONGER TIME IS REQUIRED IN THE SPECIFICATIONS. 14.CONCRETE DEFECTS: REPAIR FORMED SURFACES BY REMOVING MINOR HONEYCOMBS, PITS GREATER THAN 1/2-SQUARE-INCH IN AREA OR GREATER THAN 1/4-INCH IN DEPTH, AND ALL OTHER DEFECTS AS DIRECTED BY THE CITY OR AS DESCRIBED IN THE SPECIFICATIONS OR REFERENCE DOCUMENTS. PROVIDE EDGES PERPENDICULAR TO THE SURFACE, PATCH WITH GROUT AS SPECIFIED ABOVE, AND PROVIDE A SMOOTH FORM FINISH. CONCRETE WITH EXTENSIVE HONEYCOMBING OR OTHER DEFECTS WHICH AFFECT SERVICEABILITY AND/OR STRUCTURAL STRENGTH OF THE CONCRETE ELEMENT, AS DETERMINED BY THE CITY, SHALL BE REJECTED AND REPLACED AT NO ADDITIONAL COST TO THE CITY. METAL GRATING 1.METAL GRATING SHALL BE GALVANIZED STEEL, ADA COMPLIANT AND SUPPORT A LIVE LOAD OF 90 PSF, OR A POINT LOAD OF 8,000 LBS ON ONE SQUARE FOOT. 2.BEARING BARS SHALL BE 2 INCH HIGH BY 3/16 INCH THICK SPACED AT 1/2 INCH OC. 3.TRANSVERSE BARS SHALL BE SPACED AT 4 INCHES OC. 4.METAL GRATING SHALL BE SHOP FABRICATED BASED ON AS-BUILT STRUCTURE DIMENSIONS (FIELD CUTTING IS NOT ALLOWED). 5.HOT-DIP GALVANIZE AND APPLY NON-SKID FINISH TO GRATING AFTER FABRICATION. 6.METAL GRATING SHALL BE SHOP FABRICATED BASED ON AS-BUILT STRUCTURE DIMENSIONS (FIELD CUTTING IS NOT ALLOWED). 7.METAL GRATING FASTENERS SHALL BE MECHANICAL FASTENERS PER THE GRATING MANUFACTURER, MEETING ADA REQUIREMENTS. 8.MAXIMUM SPACING OF THE METAL GRATING FASTENERS WILL BE DETERMINED BY THE GRATING MANUFACTURER. HS-10 TRUCK 16,000 LBS 14'-0"6'-0" 4,000 LBS R-420224 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSTRUCTURAL NOTES GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT PLAN - REPLACEMENT BRIDGE SCALE: ELEVATION - REPLACEMENT BRIDGEA-SCALE: 1" = 5'feet 10550 scale 1" = 5' feet 10550 scale A- ℄ ABUTMENT 2 METAL GRATING OVERLOOK EXIST LIGHT POLE TO REMAIN, TYP ACP APRON, TYP HANDRAILING, TYP EL 24.3' OHW EL 18.0 APPROX ML @ FACE OF BRIDGE ACP APPROACH, TYP OVERLOOK STEEL PIPE PILE, TYP REPLACE EXIST RIP-RAPW/ IN PREVIOUS FOOTPRINT, TYP GIRDER W/ FRP LUMBER CLADDING HANDRAILING CONC TOPPING OVER GIRDER CONC ABUTMENT, TYP EL 24.3' NOTE: FRP LUMBER CLADDING NOT SHOWN, SEE LANDSCAPE DRAWINGS FOR CLADDING LAYOUT 10'-0" CLEARBETWEEN RAILING3'-0"105'-8" BACK TO BACK OF ABUTMENTS 101'-9" CONC END SLAB, TYP ℄ ABUTMENT 1 METAL GRATING EXIST HANDHOLE TO REMAIN, TYP RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:16 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S02.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420225 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERBRIDGE PLAN & ELEVATIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT OHW OHWOHWOHWWOHWOHWOHWOHW OHW OHWOHWHWOHWOHW 90°℄ PILES WP2 FOUNDATION PLAN1 -SCALE: ℄ BRIDGE ℄ PILES A-5'-4 1/2"5'-4 1/2"℄ ABUTMENT 2 ℄ ABUTMENT 1 5'-4 1/2"5'-4 1/2"1/4" = 1'-0" feet 8440 scale 90°WP1 B - B - 18.34 -31.65 TYP WP NORTHING EASTING WP2 1301793.2818 189457.1240 WORK POINT COORDINATES WP1 1301827.3032 189361.2657 DETAIL - PAVEMENT SEAT1 -SCALE: NOTE: FOR ALL DETAILS NOT SHOWN SEE B- 1" = 1'-0"feet 2110 scale6"6 1/2"10"10" 18"Ø x 1/2" STEEL PILE, TYP CONC BACKWALL 7'-0"7'-0" CONC GIRDER STOP, TYP ℄BEARING 5'-4 1/2"5'-4 1/2" SECTION - CONC ABUTMENTB -SCALE: ELEVATION - CONC ABUTMENTA -SCALE: ℄BEARING BLOCKOUT FOR WL 1/2" = 1'-0"feet 4220 scale 1/2" = 1'-0"feet 4220 scale 18"Ø STEEL PILE OPTIONAL CJ ℄ PILE 1'-11 3/4"1'-11 3/4" 1'-11 3/8" EL 24.3 CONC BACKWALL BRIDGE BEARING CONC PILE CAP GRAVEL BACKFILL FOR WALLS ACP TRAIL 2'-0" 1'-11 3/8" ℄GIRDER STOP ℄GIRDER STOP℄GIRDER STOP ℄GIRDER STOP 3'-1" ℄BRIDGE & BEARING (SYM) 1'-1 3/4"1'-1 3/4"2'-6"3'-8 1/2"10"10"1'-0"MATCH ACP TRAIL SLOPE, SEE CIVIL DRAWINGS SEE FOR PAVEMENT SEAT 1 - NOTE: FOR REINFORCEMENT DETAILS SEE AS-9 BLOCKOUT FOR ELECTRICAL RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:17 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S03.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420226 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERFOUNDATION PLAN AND SECTIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT PLAN - BRIDGE FRAMING1-SCALE: ℄ DIAPHRAGM ℄ DIAPHRAGM ℄ BRIDGE GRATING SUPPORT @ 2'-0" MAX SP, TYP A- B - C - CONC ABUTMENT, TYP OVERLOOK FRAMING, SEE AS-6 B S-6 1" = 4'feet 8440 scale ℄ END DIAPHRAGM ℄ DIAPHRAGM ℄ END DIAPHRAGM℄ DIAPHRAGM℄ DIAPHRAGM 21'-1 1/4"21'-9 3/4"4'-7 1/2"4'-7 1/2"21'-9 3/4"21'-1 1/4" 101'-5 1/4" END TO END STEEL GIRDER 42'-3 1/2"42'-3 1/2"4'-4 1/2"8'-0 3/4"4'-4 1/2"4'-4 1/2"6'-2" ℄ DIAPHRAGM ℄ GIRDER℄ GIRDER℄ GIRDER℄ BRIDGENOTES: FOR GIRDER CAMBER REQUIREMENTS SEE A S-5 5'-4 1/2"5'-4 1/2"STEEL GIRDER 3 STEEL GIRDER 2 STEEL GIRDER 1 SEE TYP7S-8 SEE TYP8S-8 SEE OPP, TYP7S-8 SYMA S-6 1S-7 GRATING SPAN DIRECTION, TYP SECTION - END DIAPHRAGM A-SCALE: SECTION - DIAPHRAGM B-SCALE: SECTION - DIAPHRAGM C-SCALE: 6" = 1'-0" inches 4220 scale 6" = 1'-0" inches 4220 scale 6" = 1'-0" inches 4220 scale SEE TYP3 S-8 NOTE: FOR DETAILS NOT SHOWN SEE A- NOTE: FOR DETAILS NOT SHOWN SEECONC ABUTMENT STEEL PILE, TYP GIRDER STOP, TYP BOT OF FLANGE STEEL GIRDER, TYP C8x18.75, TYP 1'-6"1'-1 1/2"SEE TYP1 S-8 SEE TYP4S-8 CONC BRIDGE END SLAB SEE SIM3 S-8SEE TYP2 S-8 2 1/2" CL TYP℄ C8℄ C8GRATED DECKING STEEL GIRDER, TYP C8x18.75, TYP 2'-3 1/4"6 1/2"SEE TYP5S-8 SEE TYP6 S-8 NOTE: FOR DETAILS NOT SHOWN SEE A-℄ C8℄ C8GRATED DECKING, TYPC8x18.75, TYP STEEL GIRDER, TYP EXTERIOR OVERLOOK BEAM INTERIOR OVERLOOK BEAM 2'-3"6 1/2"℄ C8℄ C8B - CONC TOPPING, TYP CONC TOPPING, TYP 8" WATERMAIN 8" WATERMAIN RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:17 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S04.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420227 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERFRAMING PLAN GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT 0 TOTAL DEAD LOAD CAMBER FABRICATE TO THIS LINE DIM A DIM BGIRDER 1 0 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.000 DIM A DIM BGIRDER 2 DIM A DIM BGIRDER 3 TOTAL 0.000 TOTAL TOTAL CAMBER DIAGRAM - STEEL GIRDERS NTS A S-4 FINAL PROFILE GRADE ELEVATION AT TOP OF WEB 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 NOTES: ℄ BEARING ℄ BEARING DEFLECTION DUE TO STEEL WEIGHT ONLY (DIM A IN TABLE) GIRDER CAMBER SCHEDULE 0.1 0.702 0.567 0.529 0.491 1.269 1.199 1.125 1.324 1.070 1.261 0.999 1.195 0.927 2.394 2.260 2.122 1.804 1.460 1.718 1.363 1.629 1.265 3.265 3.080 2.894 2.109 1.709 2.008 1.594 1.905 1.481 3.818 3.602 3.386 2.214 1.794 4.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.670 1.675 3.782 2.108 0.634 1.555 3.556 2.001 2.109 1.709 2.008 1.594 1.905 1.481 3.818 3.602 3.386 1.804 1.460 1.718 1.363 1.629 1.265 3.265 3.080 2.894 1.324 1.070 1.261 0.999 1.195 0.927 2.394 2.260 2.122 0.702 0.567 0.529 0.491 1.269 1.199 1.125 0.670 0.634DIM BCAMBER POINTS 1.FOR THE PURPOSE OF MEASURING CAMBER TOLERANCES AT THE TIME OF SHOP ASSEMBLY, ASSUME GIRDER TOP FLANGES ARE FLUSH WITH BOTTOM OF DECK. 2.THE CAMBER DIAGRAM IS BASED UPON THE CONCRETE TOPPING PLACEMENT IN ONE CONTINUOUS POUR FROM END TO END OF GIRDER. 3.DIMENSION B INCLUDES THE EFFECTS OF THE DECK AND RAILING. IT DOES NOT INCLUDE THE EFFECTS OF PROFILE GRADE. RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:18 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S05.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420228 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERCAMBER DIAGRAM GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT SECTION - EXTERIOR GIRDERC -SCALE: 1"=1'-0" PL 1/2 W36x160 ℄ GIRDER 3/8TYP SECTION - EXTERIOR GIRDERD -SCALE: 1"=1'-0" PL 1/2 W36x160 ℄ GIRDER 3/8TYP 2" CLR 1 1/2" CLR TYPHANDRAIL BASE PL, SEE LANDSCAPE DRAWINGS FOR LOCATION, SEE S-12 FOR DETAILS 4"3"3/4" CHAMFER, TYP #3 @ 4" OC 3"3" 1/2"x2" WELDED STUD, TYP CONC BRIDGE END SLAB HANDRAIL BASE PL, SEE LANDSCAPE DRAWINGS FOR LOCATION, SEE S-12 FOR DETAILS2" CLR 4"3"3/4" CHAMFER, TYP 3"3" 1/2"x2" WELDED STUD, TYP (3) #4 CONT BARS, EQ SPA SECTION - INTERIOR GIRDERE -SCALE: 1"=1'-0" W36x160 ℄ GIRDER 3/8TYP SECTION - INTERIOR GIRDERF -SCALE: 1"=1'-0" W36x160 ℄ GIRDER 3/8TYP1 1/2" CLR TYP4"3"3/4" CHAMFER, TYP #3 @ 4" OC 3"3" 1/2"x2" WELDED STUD, TYP CONC END SLAB PL 1x12 STEEL GRATING PL 1/2 PL 1/2 DETAIL - GIRDER DAP1-SCALE: 1"=1'-0"R 5" , TYP2"CJP PL 1 1'-0" 6 1/4" PL 1/2 CJP CJP ℄℄℄℄R 5" , TYP2"PL 1 1'-0" 6 1/4"CJP ℄ ABUTMENT ℄ PILES ℄ ABUTMENT ℄ ABUTMENT ℄ PILES ℄ ABUTMENT ELEVATION - EXTERIOR GIRDERAS-4 SCALE: 1/2"=1'-0" ELEVATION - INTERIOR GIRDERB S-4 SCALE: 1/2"=1'-0" END SLAB 5'-8 1/4" END SLAB 5'-8 1/4" CONC TOPPING 3", TYP 1/2"Ø WELDED STUDS @ 8" OC C- 3", TYP1/2"Ø WELDED STUDS @ 8" OC C- END DIAPHRAGM, TYP DIAPHRAGM, TYP EXPANSION JOINT, SEE TYP2S-11 GRATING SUPPORT, TYP END SLAB 5'-8 1/4" END SLAB 5'-8 1/4" METAL GRATING 3", TYP 1/2"Ø WELDED STUDS @ 8" OC E- 3", TYP1/2"Ø WELDED STUDS @ 8" OC END DIAPHRAGM DIAPHRAGM, TYP EXPANSION JOINT, SEE TYP2 S-11 GRATING SUPPORT, TYP TYP E- F- 1/2" = 1'-0"feet 4220 scale 1/2" = 1'-0" feet 4220 scale SEE TYP1- ℄ PILES TYP D - ℄ PILES MAX GRATING SUPPORT SPACING FROM END OF GRATING IS 6", TYP RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:19 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S06.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420229 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERGIRDER ELEVATION & SECTIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT ℄ GIRDER ELEVATION - OVERLOOK2 -SCALE: 1 1/2"=1'-0" ℄ GIRDER ℄ BEAM HP12x53 PL 3/8 METAL GRATING 3/8 HANDRAIL BASE PL, SEE LANDSCAPE DRAWINGS FOR LOCATION, SEE S-12 FOR DETAILS HANDRAIL BASE PL, SEE LANDSCAPE DRAWINGS FOR LOCATION, SEE S-12 FOR DETAILS, TYP SECTION - OVERLOOK FRAMINGA -SCALE: 1 1/2"=1'-0"EXTERIOR STEEL GIRDER 1'-3"1'-0" MIN LAP SPLICE SPLICED #4 UNDER CONC CAP REINF 2" CLR EXTERIOR STEEL GIRDER CJPEXTERIOR OVERLOOK BEAM 3"1/2"Ø WELDED STUDS @ 8" OC 3" #4 CONC CAP REINF #4 3/4" CHAMFER, TYP4"CJP B - DAPPED BEAM END, SEE 3-STEEL GRATING, TYP 1 3/4" 2'-10" L3X3, GRATING SUPPORT C - EXTERIOR OVERLOOK BEAM DIAPHRAGM ℄ BEAM HP12x53 PL 3/8 3/8TYP CONC TOPPING 1/2"Øx2" HEADED STUD, TYP HANDRAIL BASE PL, SEE DRAWING S-12 SIM 3/8" MAX STEEL GRATING 5/16 SECTION - EXTERIOR OVERLOOK BEAMB -SCALE: 1 1/2"=1'-0" SECTION - INTERIOR OVERLOOK BEAMC -SCALE: 1 1/2"=1'-0"L5x3x3/8 L3x3x3/8 5/163 SIDES 1-1/2" = 1'-0" inches 16880 scale 1-1/2" = 1'-0" inches 16880 scale 1-1/2" = 1'-0" inches 16880 scale 1-1/2" = 1'-0" inches 16880 scale SIM ℄ GIRDER R3/4" 3" DETAIL - DAPPED INTERIOR BEAM3 -SCALE: 1 1/2"=1'-0"2"EXTERIOR STEEL GIRDER INTERIOR OVERLOOK BEAM INTERIOR OVERLOOK BEAM 1-1/2" = 1'-0" inches 16880 scale STIFFFENER PL 1/2" CENTERED ON OVERLOOK BEAM STIFFFENER PL 3/8" CENTERED ON OVERLOOK BEAM CONC TOPPING 1/4 CJP MECHANICAL STEEL GRATING FASTENER MECHANICAL STEEL GRATING FASTENER PLAN - OVERLOOK FRAMING1S-4 SCALE: 3/4"=1'-0" 2- B- A- 3/4" = 1'-0"feet 2110 scale1 3/4"2'-10"C - L5x3 CJP ALL AROUND, TYP ℄ OVERLOOK (SYM)5 1/4"3'-6"HANDRAIL BASE PL, SEE LANDSCAPE DRAWINGS FOR LOCATION, TYP DIAPHRAGM, TYP GRATING SUPPORT, TYP #4, TYP ℄ BRIDGE GRATING SPAN DIRECTION, TYP NOTES: 1. WELDED STUDS NOT SHOWN 2. STEEL GRATING NOT SHOWN RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:36 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S07.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420230 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EEROVERLOOK PLAN ELEVATION & SECTIONS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT DETAIL - DIAPHRAGM CONNECTION 11S-4 SCALE: 2"=1'-0" DETAIL - DIAPHRAGM SUPPORT CONNECTION 33S-4 SCALE: 2"=1'-0" DETAIL - DIAPHRAGM CONNECTION 22S-4 SCALE: 2"=1'-0" ℄ GIRDER (SYM) STEEL INTERIOR GIRDER C8x18.75, TYP STEEL GRATING 6 1/2"1"1'-4 1/8"1 3/4"3"2 1/4"3"3" 3/4" BOLT W/ WASHER, TYP DETAIL - DIAPHRAGM CONNECTION 34 S-4 SCALE: 2"=1'-0" DETAIL - DIAPHRAGM CONNECTION 45 S-4 SCALE: 2"=1'-0"DETAIL - DIAPHRAGM CONNECTION 56S-4 SCALE: 2"=1'-0" PLASTIC LUMBER FACING STEEL GIRDER STEEL GRATINGCONC TOPPING C8x18.75 PL 1/2x6x0'-6"4 1/2"1 1/2"1 3/4"2 1/2"1 1/2"3"1 1/2" BOLT 3/4"Ø W/ WASHER, TYP DETAIL - GRATING SUPPORT CONNECTION7S-4 SCALE: 2"=1'-0" CJP, TYP DETAIL - GRATING SUPPORT CONNECTION8S-4 SCALE: 2"=1'-0" ℄ GIRDER (SYM) STEEL INTERIOR GIRDER C8x18.75, TYP STEEL GRATING PL 1/2x6x0'-6", TYP 1 3/4"2 1/2"1 1/2"3"1 1/2" 3/4" BOLT W/ WASHER, TYP3 3/4"5/16 5/16TYP 5/16 5/16 3 3/4"PLASTIC LUMBER FACING STEEL GIRDER L3x3x3/8 CONC END SLAB C8 DIAPHRAGM PL 1/2"4 7/8"6 5/8"1"1 3/4"3"3"3" BOLT 1"Ø W/ WASHER, TYP BOLT 3/4"Ø W/ WASHER2 1/4"CJP 1 3/8" 2 1/4" 1 3/8"1 3/4"3"2 1/4"3"3"6 1/2"10" C8x18.75 1 1/8"STEEL GIRDER PLASTIC LUMBER FACING C8x18.75, TYP DIAPHRAGM PL 1/2", TYP L3x3x3/8, TYP 1 1/8"6 1/2"4 7/8"1 3/4"8 1/4" 1 3/8" ℄ GIRDER (SYM) 2 1/4" 3"3"3"1 3/4"1"Ø BOLT W/ WASHER, TYP 3/4"Ø BOLT W/ WASHER, TYP 2 1/4" CJP, TYP 8.5°1 3/8" PLASTIC LUMBER FACING STEEL GIRDER STEEL GRATING L3x3x3/8 CONC TOPPING C8x18.75 8 1/4"1 3/4"10 5/8"2"1 1/8"1 3/4"3"2 1/4" 3"3" BOLT 1"Ø W/ WASHER, TYP BOLT 3/4"Ø W/ WASHER1 3/8" 2 1/4 " 1 3/8"2 1/4"℄ GIRDER (SYM) C8x18.75, TYP L3x3x3/8, TYP 1 1/8"6 1/2"4 7/8"1 3/4"8 1/4" 3"3"3"1 3/4"1"Ø BOLT W/ WASHER, TYP 3/4"Ø BOLT W/ WASHER, TYP 1 3/8" 2 1/4"1 3/8"20.3°1/4 1/4 8 3/4"1 3/4" NOTE: FOR DETAILS NOT SHOWN SEE 1- NOTE: FOR DETAILS NOT SHOWN SEE 1 - NOTES: 1.SLOT GIRDER PL 1/2 AND WELD DIAPHRAGM PL 1/2 TO W36 STEEL GIRDER 2.MAXIMUM GAP BETWEEN CHANNEL AND GIRDER IS 1/4" CJP NOTE: FOR DETAILS NOT SHOWN SEE 1-3/4" BOLT W/ WASHER, TYP 6 1/2" CJP 8 3/4" STEEL GIRDER NOTE: FOR DETAILS NOT SHOWN SEE 1- NOTE: MAXIMUM GAP BETWEEN CHANNEL AND GIRDER IS 1/4" NOTE: MAXIMUM GAP BETWEEN CHANNEL AND GIRDER IS 1/4" DIAPHRAGM PL 1/2", TYP DIAPHRAGM PL 1/2" DIAPHRAGM PL 1/2" DIAPHRAGM PL 1/2", TYP ℄ GIRDER ℄ GIRDER RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:40 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S08.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420231 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - SHEET 1 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT PLAN ELEVATION1'-2"(5/16)8 (5/16)8 3"8"WELD3"#8 HEADED BAR. SPACE AROUND INSIDE OF PILE TO AVOID INTERFERENCE W/LONGITUDINAL & TRANSVERSE REINFORCEMENT (10 BARS EA PILE) TOUCH UP PILE COATING AFTER WELDING (SEE SPECIFICATIONS) DETAIL - PILE CONNECTION2-SCALE: 1"=1'-0"OFFSET EVERYOTHER HEADEDDOWEL 2" MAXNOTE: COAT ALL PILING IN ACCORDANCE WITH THE SPECIFICATIONS. COATING SHALL EXTEND FROM CUT-OFF TO 15' BELOW MUDLINE. SUBMIT PILE ORDER/COATING LIST TO CITY FOR APPROVAL. 18"Ø PILE CJ ℄ PILE CONC BACKWALL BRIDGE BEARING CONC PILE CAP 3'-3"FILL PILE W/ CONC3" TYPPILE CUT-OFF ELEV 2- ELEVATION - ABUTMENT REINFORCMENTAS-3 SCALE: 3/4"=1'-0"SECTION - ABUTMENT REINFORCEMENTB-SCALE: 3/4"=1'-0" DETAIL - PILE CONNECTION1-SCALE: 3/4"=1'-0" 18"Ø PILE, TYP CONC BACKWALL ℄BRIDGE & BEARING (SYM) B- FOR PILE CONNECTION DETAILS, SEE TYP PAVEMENT SEAT #5 BACKWALL STIRRUPS @ 8" OC (6) #8 (6) #8 ALTERNATE ENDS 3" CLR, TYP 3" CLR, TYP(2) #8 EQ#5 @ 8" OC #5, TYP #5 @ 8" #5 PILE CAP STIRRUPS @ 8" OC COORDINATE STIRRUP & LONGITUDINAL BAR LOCATION W/ PILE CONNECTION TO AVOID INTERFERENCE 1-FOR PILE CONNECTION DETAILS SEE 4'-0"3'-0 1/2"BLOCKOUT FOR WL, SEE 1S-10 10-#8 HEADED DOWELS, SEE GIRDER STOP COORDINATE STIRRUP & LONGITUDINAL BAR LOCATION W/ PILE CONNECTION TO AVOID INTERFERENCE END GIRDER STOP, SEE 2 S-10 CENTER GIRDER STOP, SEE 3 S-10 END GIRDER STOP, SEE SIM2 S-10 1 - A S-10TYP (3) #8 EQ1'-9" NOMINALBETWEEN GIRDER STOPS RECESS CONC DOWN 1" FOR WL 1'-3 3/4" 2 1/2"Ø BLOCKOUT FOR CONDUIT 1'-2"RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:41 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S09.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420232 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - SHEET 2 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT ELEVATIONSECTION DETAIL - GIRDER STOP PAD4 -SCALE: COUPLE NUT TACK WELD TO PL 8" MIN EMBEDCONC GIRDER STOP 2" = 1'-0"inches 8440 scale PL 1/2x10x1'-6" 1/2" 3/4" CHAMFER, TYP 3"1'-0"3" CONC BACKWALL CONC GIRDER STOP 3"4"3"3/4"Ø BOLT, TYP 3"Ø COUNTERBORE, TYP 1 1/2" UHMW PE3 3/4"ELEVATIONSECTION DETAIL - GIRDER STOP PAD4 -SCALE: COUPLE NUT TACK WELD TO PL 8" MIN EMBEDCONC GIRDER STOP 2" = 1'-0"inches 8440 scale PL 1/2x10x1'-6" 1/2" 3/4" CHAMFER, TYP 3"1'-0"3" CONC BACKWALL CONC GIRDER STOP 3"4"3"3/4"Ø BOLT, TYP 3"Ø COUNTERBORE, TYP 1 1/2" UHMW PE3 3/4"DETAIL - END GIRDER STOP2S-9 SCALE: DETAIL - CENTER GIRDER STOP3S-9 SCALE: PILE CAP STIRRUPS, TYP 18"Ø PILE (2) #5 CONC GIRDER STOP (5) #5 @ EQ SPA SECTION - GIRDER STOPAS-9 SCALE: OPTIONAL CJ CONC GIRDER STOP CONC BACKWALL #5 #5 LONG, TYP BACKWALL STIRRUP PILE CAP LONG BAR, TYP PILE CAP STIRRUP PILE CAP LONG BAR 2'-0" EMBEDMENTMINPILE CAP STIRRUPS, TYP 18"Ø PILE PILE CAP LONG BAR (2) #5, TYP CONC GIRDER STOP, TYP (5) #5 @ EQ SPA, TYP 2'-0" EMBEDMENTMIN2" CLR2" CLR 2" CLR, TYP2" CLR, TYP 1-1/2" = 1'-0"inches 16880 scale1-1/2" = 1'-0"inches 16880 scale 1-1/2" = 1'-0"inches 16880 scale GIRDER STOP PAD, SEE 4 - GIRDER STOP PAD, SEE 4- ELASTOMERIC BEARING ELASOMERIC BEARING W/ LEVELING GROUT PAD SYM #5 HAIRPINS 1S-11 1S-11 CONC BACKWALL DETAIL - UTILITY BLOCKOUT1 S-9 SCALE: BACKWALL STIRRUP, TYP LONG BAR, TYP PILE CAP STIRRUPS PILE CAP LONG BAR 2" CLR, TYP 18"Ø BLOCKOUT WATER MAIN, SEE CIVIL DRAWINGS FOR DETAILS (2) #5 x5'-0" AT 45° AT EA SIDE OF OPENING AS SHOWN, CENTER ON OPENINGS (8 BARS EA FACE) STOP BACKWALL STIRRUPS & LONG BARS 2" CLR AT INTERFERENCE W/ BLOCKOUT 1" = 1'-0"feet 2110 scale DETAIL - UTILITY BLOCKOUT1 S-9 SCALE: BACKWALL STIRRUP, TYP LONG BAR, TYP PILE CAP STIRRUPS PILE CAP LONG BAR 2" CLR, TYP 18"Ø BLOCKOUT WATER MAIN, SEE CIVIL DRAWINGS FOR DETAILS (2) #5 x5'-0" AT 45° AT EA SIDE OF OPENING AS SHOWN, CENTER ON OPENINGS (8 BARS EA FACE) STOP BACKWALL STIRRUPS & LONG BARS 2" CLR AT INTERFERENCE W/ BLOCKOUT 1" = 1'-0"feet 2110 scale RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:41 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S10.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420233 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - SHEET 3 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT CONC ABUTMENT STEEL GIRDER EXPANSION JOINT SEE NOTES 2" SEE NOTE 1 CONC END SLAB DETAIL - EXPANSION JOINT2S-6 SCALE: 6"=1'-0" EXPANSION JOINT NOTES: 1.FIELD VERIFY SEAL/CONCRETE DIMENSIONS AND VERIFY SELECTED EXPANSION JOINT TOLERANCESES WITH MANUFACTURER PRIOR TO ORDERING. 2.APPROVED EXPANSION JOINTS ARE D.S. BROWN "JP-200" (419-257-2200), WATSON BOWMEN ACME CORP "JEENE 50FW" (716-691-7566), OR ENGINEER APPROVED EQUAL. 3.SUBMIT MANUFACTURER'S WRITTEN INSTALLATION PROCEDURE. 4.INSTALL EXPANSION JOINT IN ACCORDANCE WITH THE MANUFACTURER'S WRITTEN RECOMMENDATIONS. FRP CLADDING PER LANDSCAPE DRAWINGS 1 1/2"Ø WASHER, TYP 2"TYPA- 3/8"BUTTON HEAD HEX DRIVE SCREW,TYP FRP CLADDING 1 1/2" 1 3/8"Ø COUNTERBORE W/ 3/4"Ø THROUGH HOLE, TYP 1/8"1 3/8"1 1/2"Ø WASHER, TYP 3/8"BUTTON HEAD HEX DRIVE SCREW,TYP 3/8" STEEL ROUND BASE WELD NUT, TYP TYP DETAIL - FRP CLADDING CONNECTION3L-4 SCALE: 6"=1'-0" SECTION - FRP CLADDING CONNECTIONA-SCALE: 6"=1'-0" PL 3/4x14x1'-2", VULCANIZE TO ELASTOMERIC PAD ℄ GIRDER ℄ BEARING 5/16 CONC ABUTMENT, TYP STEEL GIRDER 1/4" TYP3 3/4"1/4"TYP1/2"INNERLAYER, TYP(6) 1/8" STEEL SHIM 12x12 ELASTOMERIC BEARING PAD BEARING PAD NOTES: 1.BEARINGS SHALL NOT BE PLACED AT TEMPERATURE GREATER THAN 85 DEGREES FAHRENHEIT. 2.DURING FIELD WELDING THE TEMPERATURE OF THE STEEL ADJACENT TO THE BEARING MUST BE KEPT BELOW 250 DEGREES FAHRENHEIT. 3.GIRDER STOPS AND INTERIOR GIRDER GROUT PAD NOT SHOWN. DETAIL - ELASTOMERIC BEARING PAD1S-10 SCALE: 6"=1'-0" BEARING DESIGN TABLE AASHTO METHOD B DESIGN SERVICE I LIMIT STATE DEAD LOAD (DL) REACTION 28 KIPS LIVE LOAD (LL) REACTION 20.5 KIPS UNLOADED HEIGHT 3.75 INCHES LOADED HEIGHT (DL)3.724 INCHES SHEAR MODULUS (DUROMETER 60)150 PSI RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:57 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S11.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420234 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - SHEET 4 GENE COULON MEMORIAL BEACH PARK ADDENDUM 1TRESTLE BRIDGE REPLACEMENT WEB NET PANEL NOTE: FOR ALL DETAILS NOT SHOWN SEE LANDSCAPE DRAWINGS 2"Ø SS ROUND POSTS RAIL SUPPORTS, TYP 3/8"Ø SS TAMPER-RESISTANT BUTTON HEAD TORX SCREW W/ WASHER , TYP 1 1/2"6 1/2"1 1/2"6 1/2"1 1/2"1 1/2"R1 1 / 2 " , T Y P SS PL 3/8" SS 3/8" END CAP PLATE, TYP 1/4TYP 5/16TYP DETAIL - STAINLESS STEEL END POST RAIL BASE PLATE1S-2 SCALE: 3"=1'-0" A- SIM DETAIL - STAINLESS STEELTWO POST RAIL BASE PLATE2 S-2 SCALE: 3"=1'-0" CONC CAP 2"Ø SS ROUND POSTS RAIL SUPPORTS, TYP 3/8"Ø SS TAMPER-RESISTANT BUTTON HEAD TORX SCREW W/ WASHER, TYP 1 1/2"3"1 1/2"6 1/2"1 1/2"1 1/2"A- WEB NET PANEL, TYP R1 1 / 2 " , T Y P SS PL 3/8" CONC CAP NOTE: FOR ALL DETAILS NOT SHOWN SEE LANDSCAPE DRAWINGS 5/16TYP 3 1/4"3 1/4"DETAIL - STAINLESS STEEL MID RAIL BASE PLATE2 S-2 SCALE: 3"=1'-0" 1"3 1/2"1"3 1/2"1"1"A-5 1/4"SIM WEB NET PANEL, TYP 1 1/2"Ø SS MID RAIL SUPPORT 3/8"Ø SS TAMPER-RESISTANT BUTTON HEAD TORX SCREW W/ WASHER, TYPSS PL 3/8" CONC CAP 5/16 R1", TYP STEEL GIRDER WEB NET PANEL 3/4" CHAMFER, TYP (3) #4, EQ SPA ℄ CONC CAP2" CLR, TYP SS TAMPER-RESISTANT BUTTON HEAD TORX SCREW W/ WASHER, TYP 3" MIN EMBED, TYPSS RAIL SUPPORT SS BASE PLSS 3/8" COUPLE NUT, TYP SS 3/8" HEAVY HEX BOLT W/ WASHER, TYP 1/2"Ø X 2" HEADED STUD @ 8" OC, TYP2"2"3 1/2"6" SECTION - CONC CAP & SS RAIL BASE PLA-SCALE: 3"=1'-0" RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 11:58 AM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S12.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420235 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERSECTIONS & DETAILS - SHEET 5 GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT EQ PIPE OD + 1/4"EQ 1'-3 3/4" PL 1/2 MATCH FLANGE BOLT SPA & DIA 2" TYP 3/4"Ø EPOXY ANCHOR, TYP DETAIL - PIPE BRACKET1-SCALE: 3"=1'-0" B- 1" 8 7/8"1"1 1/2" TYP PL 1/2 PL 1/2 3/4"Ø EPOXY ANCHOR, TYP PL 1/2 5/16 SECTION - PIPE BRACKETB-SCALE: 3"=1'-0" TYP 2 1/2"1 1/2"1 1/2" 3" 1 1/2"4 1/2"SEE NOTE 1℄ PIPE ℄ C6C6x8.2 1 1/2"8" STEEL GIRDER GUIDED PIPE SUPPORT SECTION - PIPE SUPPORTC -SCALE: DETAIL - PIPE SUPPORT2 -SCALE: 3/4"Ø BOLT, TYP 3/8" PL INSULATED DI PIPE GUIDED PIPE SUPPORT CENTERED ON C6 C6 CJP 3/4"Ø BOLT, TYP 3/8" PL 5/16 5/16 DETAIL - WATERLINE SUPPORT ANCHOR AT ABUTMENT1 C-9 SCALE: 3/4"=1'-0" 3/4" = 1'-0" feet 2110 scale STEEL PILE ℄ PILE ℄ ABUTMENT DETAIL - WATERLINE SUPPORT ANCHOR AT ABUTMENT1C-9 SCALE: 3/4"=1'-0" 3/4" = 1'-0" feet 2110 scale ELEVATION - WATERLINE PIPE SUPPORTA-SCALE: 3/4"=1'-0" GRATED DECKING STEEL EXTERIOR GIRDER BEYOND WL EXPANSION JOINT STEEL PILE CONC ABUTMENT SEE DRAWING C-9 FOR LOCATION, 6" MIN EDGE DISTANCE DIAPHRAGM 3/4"Ø EPOXY ANCHORS, 8"MIN EMBED, TYP FOR PIPE BRACKET DETAILS, SEE 2 - GRATING SUPPORT, TYP GIRDER DIAPHRAGM INSULATED PIPE PIPE LAY LENGTH ℄ PIPE SUPPORT1'-10" MAX TYP C- SEE 2 - 3/4" = 1'-0"feet 2110 scale WATERLINE PIPE SUPPORT NOTES: 1.COORDINATE WITH GUIDED PIPE SUPPORT MANUFACTURER, INSULATED PIPE MANUFACTURE AND ADJUST THE ELEVATION OF THE C6 FOR THE PIPE TO PASS THROUGH THE DIAPHRAGMS. 2.RESTRAINED PIPE SUPPORT IS A PIPE SHIELD MODEL B 4200 GUIDED INSULATED PIPE SUPPORT (WWW.PIPESHIELDS.COM), OR ENGINEER APPROVED EQUAL. 3.MAXIMUM GAP WIDTH BETWEEN GIRDER AND C6 SHALL BE 1/4" RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 12:01 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S13.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420236 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERUTILITY SUPPORT - SECTIONS AND DETAILS GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT EXIST TIMBER 4X8 TOP BOARD APPROX GROUND EL BEHIND BULKHEAD APPROX GROUND EL IN FRONT OF BULKHEAD EXIST TIMBER 4X8 LAGGING BOARD, TYP EXIST TIMBER 8X8 POST ELEVATION - ROSE WALL BULKHEAD REPAIR1 -SCALE: 1" = 1' feet 2110 scale2'-7"±2'-0"PL 3/8, TYP6"TYP4"1/2"Ø BOLT, TYP A- SECTION - ROSE WALL BULKHEAD REPAIRA -SCALE: 1" = 1' feet 2110 scale EXIST TIMBER 4X8 LAGGING BOARD, TYP EXIST TIMBER 4X8 TOP BOARD 3" PL 3/8 CENTERED ON POST APPROX GROUND EL IN FRONT OF BULKHEAD APPROX GROUND EL BEHIND BULKHEAD 1/2"Ø BOLT, TYP EXIST TIMBER 4X8 TOP BOARD EXIST TIMBER 4X8 TOP BOARD EXIST TIMBER 4X8 TOP BOARD APPROX GROUND ELBEHIND BULKHEAD APPROX GROUND EL INFRONT OF BULKHEAD EXIST TIMBER 4X8 LAGGING BOARD, TYP EXIST TIMBER 8X8 POSTELEVATION - ROSE WALL BULKHEAD REPAIR1-SCALE: 1" = 1'feet2110scale 2'-7"± 2'-0"PL 3/8, TYP 6"TYP4" 1/2"Ø BOLT, TYP A- SECTION - ROSE WALL BULKHEAD REPAIRA-SCALE: 1" = 1'feet2110scale EXIST TIMBER 4X8 LAGGING BOARD, TYPEXIST TIMBER 4X8 TOP BOARD 3" PL 3/8 CENTERED ON POST APPROX GROUND EL INFRONT OF BULKHEAD APPROX GROUND ELBEHIND BULKHEAD 1/2"Ø BOLT, TYP EXIST TIMBER 4X8 TOP BOARD EXIST TIMBER 4X8 TOP BOARD PLAN - ROSE WALL BULKHEAD REPAIR SCALE: 1" = 30' feet 6030300 scale LAKE WASHINGTON GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT EXIST PARK TRAIL RENTON SAILING CLUB DOCK EXIST PARK TRAIL PUBLIC RESTROOM ACCESS ROAD EXIST TIMBER ROSE WALL BULKHEAD SEE 1 - 155' ± RENTON CITY OF Last Saved by: USGN675479 on: Mar 17, 2022 12:03 PM File: C:\Users\USGN675479\WSP O365\Federal Way Cadd Projects - FW CADD Projects\30900024\000\CADD\Dwgs\05_S14.dwgCopyright © WSP USA Inc. All Rights Reserved.WSP USA Inc. Suite 300 Federal Way, WA 98003-2600 TEL: (206) 431-2300 FAX: (206) 431-2250 33301 9th Avenue South IN COMPLIANCE WITH CITY OF RENTON STANDARDS PR21-000033LUA21-000024C21005257TED-42-4202R-420237 50226GARTH D. NELS ONSTATE OF WASHIN G T ONREGISTEREDPROFESSIONAL ENG IN EERROSE WALL REPAIR GENE COULON MEMORIAL BEACH PARK TRESTLE BRIDGE REPLACEMENT R-420238IN COMPLIANCE WITH CITY OF RENTON STANDARDSR-420243TED-42-4202 PR21-000033 LUA21-000024 C21005257 R-420239IN COMPLIANCE WITH CITY OF RENTON STANDARDSR-420243TED-42-4202 PR21-000033 LUA21-000024 C21005257