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Greenbridge
Draft Environmental Impact Statement
King County Housing Authority

November 2003

SEPA Lead Agency:
King County Housing Authority

NEPA Lead Agency:
King County Department of Development and Environmental Services
(as responsible entity for the U.S. Department of Housing & Urban Development)


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TABLE OF CONTENTS
 

FACT SHEET (122KB .pdf)

REFERENCES (KB .pdf)

DISTRIBUTION LIST (KB .pdf)

APPENDICES
Appendix A.   Phase I Environmental Site Assessment Summary (1.1MB .pdf)
Appendix B.   Wetland Delineation (552KB .pdf)
Appendix C.   Aquatic Species Descriptions (65KB .pdf)
Appendix D.   Views from Key Viewpoints (335KB .pdf)
Appendix E.   Relationship to Plans, Policies and Regulations (174KB .pdf)
Appendix F.   Greenbridge Planning and Community Involvement (272KB .pdf)
Appendix G.   Sound Level Measurement Results (22KB .pdf)
Appendix H.   Biological Evaluation (1.2MB .pdf)
Appendix I.     Heritage Resources Investigation Report (17.9MB .pdf)
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LIST OF TABLES
1.8-1 Summary of Impacts, page S-10 (207KB .pdf)
1.8-2 Summary of Mitigation Measures, page S-29 (207KB .pdf)
2.6-1 Proposed Housing Development Program, page 2-15 (14MB .pdf)
2.6-2 Proposed Master Plan - Total Mass Earthwork Required, page 2-25 (14MB .pdf)
2.7-1 Housing Type – Analysis of Possible Differences – Between the Proposed Master Plan and Design Alternative Master Plan, page 2-28 (14MB .pdf)
2.7-2 Total Earthwork Comparison, page 2-31 (14MB .pdf)
3.1-1 Summary of Exploration Borings and Test Pits , page 3-6 (831KB .pdf)
3.4-1 Key to Bruan-Blanquet Cover-Abundance Scale , page 3-24 (337KB .pdf)
3.4-2 Plant Species and Composition of Representative Habitats, page 3-25 (337KB .pdf)
3.4-3 Endangered, Threatened and Sensitive Vascular Plants, page 3-27 (337KB .pdf)
3.4-4 Wildlife Species and Habitat, page 3-34 (337KB .pdf)
3.4-5 Wildlife Species, page 3-35 (337KB .pdf)
3.5-1 Aquatic Species Use of Project Area Waterbodies, page 3-45 (46KB .pdf)
3.6-1 Existing Residential Electrical Energy Use per Unit Type, page 3-51 (23KB .pdf)
3.6-2 Existing Non-Residential Gas and Electrical Energy Use, page 3-51 (23KB .pdf)
3.7-1 Sound Levels Produced by Common Noise Sources , page 3-54 (50KB .pdf)
3.7-2 King County Maximum Permissible Levels and Construction Noise Limits (dBA), page 3-56 (50KB .pdf)
3.7-3 Housing and Urban Development Noise Guidelines , page 3-57 (50KB .pdf)
3.7-4 FHWA Roadway Noise Abatement Criteria (dBA), page 3-59 (50KB .pdf)
3.7-5 Measured Existing Sound Levels, page 3-60 (50KB .pdf)
3.8-1 Summary of Regulatory Database Search Listings of Potential Environmental Concerns, page 3-65 (174KB .pdf)
3.9-1 Existing Land Uses On-Site, page 3-68 (278KB .pdf)
3.9-2 Population Growth Trends, page 3-73 (278KB .pdf)
3.9-3 Racial Characteristics of the Study Area Population, page 3-74 (278KB .pdf)
3.9-4 Ethnicity of Park Lake Homes Residents, page 3-75 (278KB .pdf)
3.9-5 Age Profile, page 3-75 (278KB .pdf)
3.9-6 Age of Housing, page 3-77 (278KB .pdf)
3.9-7 Units by Structure Type, page 3-78 (278KB .pdf)
3.9-8 Unit Size Comparison, page 3-79 (278KB .pdf)
3.9-9 Housing Tenure, 1990 and 2000, page 3-79 (278KB .pdf)
3.9-10 Composition of Rental Housing Stock, page 3-80 (278KB .pdf)
3.9-11 Rent Changes in White Center Area, 2000-2002, page 3-82 (278KB .pdf)
3.9-12 2002 Average Rents by Area and Unit Type, page 3-82 (278KB .pdf)
3.9-13 Changes in Average Rents by Area and Unit Type, 2000-2002, page 3-83 (278KB .pdf)
3.9-14 Comparative Vacancy Rates 2002, page 3-84 (278KB .pdf)
3.9-15 White Center Vacancy Rates 2000 – 2002, page 3-84 (278KB .pdf)
3.9-16 2002 Federal Income Guidelines, page 3-85 (278KB .pdf)
3.9-17 Affordability of Market Rents at 30%, 50%, and 80% of Median Income, page 3-86 (278KB .pdf)
3.9-18 Sales Activity in Single Family Homes, 2000-2002, page 3-87 (278KB .pdf)
3.9-19 Affordability of Home Purchase, 2-person Household, page 3-88 (278KB .pdf)
3.9-20 Affordability of Home Purchase, 3-person Household, page 3-88 (278KB .pdf)
3.9-21 Affordability of Home Purchase, 4-person Household, page 3-88 (278KB .pdf)
3.9-22 Affordability of Home Purchase in West Seattle, page 3-89 (278KB .pdf)
3.9-23 King County Employment Trends by Job Category, page 3-89 (278KB .pdf)
3.9-24 Study Area Employment by Job Category, page 3-90 (278KB .pdf)
3.10-1 2003 Federal Income Guidelines, page 3-94 (34KB .pdf)
3.10-2 Median Household Incomes, page 3-96 (34KB .pdf)
3.10-3 Demographic Summary of Environmental Justice Study Area, page 3-97 (34KB .pdf)
3.15-1 Existing AM and PM Peak Hour LOS Summary, page 3-125 (225KB .pdf)
3.15-2 Existing Transit Service, page 3-126 (225KB .pdf)
3.15-3 Collision Summary: 1997-2001, page 3-129 (225KB .pdf)
4.2-1 Calculated Maximum Peak 1- and 8-Hour CO Concentrations, page 4-16 (38KB .pdf)
4.7-1 Typical Construction Equipment Noise, page 4-43 (116KB .pdf)
4.7-2 Predicted Off-Site Traffic Noise Levels, page 4-46 (116KB .pdf)
4.7-3 2012 TNM – Calculated On-Site Traffic Noise Levels, page 4-49 (116KB .pdf)
4.9-1 Comparison of Existing & Proposed Land Uses On-Site, page 4-60 (145KB .pdf)
4.9-2 Proposed Master Plan Annual Direct Construction Jobs Created, page 4-64 (145KB .pdf)
4.9-3 Design Alternative Master Plan Direct Annual Construction Jobs Created, page 4-67 (145KB .pdf)
4.9-4 Housing Mix After Redevelopment, page 4-69 (145KB .pdf)
4.9-5 Staged Demolition and Development Schedule, page 4-70 (145KB .pdf)
4.9-6 Rental Unit Bedroom Mix Pre- and Post-Redevelopment, page 4-73 (145KB .pdf)
4.9-7 Redevelopment Schedule, page 4-75 (145KB .pdf)
4.9-8 Housing Units Before and After Redevelopment, page 4-75 (145KB .pdf)
4.9-9 Replacement Housing Plans, page 4-76 (145KB .pdf)
4.15-1 Peak Hour LOS Summary – Existing and 2012 No Action Alternative, page 4-113 (2.7MB .pdf)
4.15-2 Soils Hauling Calculations, page 4-116 (2.7MB .pdf)
4.15-3 Greenbridge Trip Generation, page 4-120 (2.7MB .pdf)
4.15-4 AM and PM Peak Hour Traffic Volume Impact – Proposed Master Plan, page 4-122 (2.7MB .pdf)
4.15-5 Peak Hour LOS Summary – 2012 No Action Alternative and Proposed Master Plan, page 4-128 (2.7MB .pdf)
4.15-6 Residential Parking, page 4-131 (2.7MB .pdf)
4.15-7 Existing and Design Alternative Master Plan Housing, page 4-134 (2.7MB .pdf)
4.15-8 Soils Hauling Calculations, page 4-135 (2.7MB .pdf)
4.15-9 Estimated Vehicle Trip Generation for Design Alterative Master Plan, page 4-139 (2.7MB .pdf)
4.15-10 AM and PM Peak Hour Traffic Volume Impact – Design Alternative Master Plan, page 4-142 (2.7B .pdf)
4.15-11 Peak Hour LOS Summary – 2012 No Action Alternative and Design Alternative Master Plan, page 4-143 (2.7MB .pdf)
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LIST OF FIGURES
2.1-1 Regional Map, page 2-2 (14MB .pdf)
2.1-2 Vicinity Map, page 2-3 (14MB .pdf)
2.3-1 Existing Site Plan, page 2-7 (14MB .pdf)
2.6-1 Proposed Site Plan, page 2-13 (14MB .pdf)
2.6-2 Unit Range Plan, page 2-14 (14MB .pdf)
2.6-3 Proposed Parks, Open Spaces and Community Facilities, page 2-17 (14MB .pdf)
2.6-4 Street Tree and Landscape Plan, page 2-19 (14MB .pdf)
2.6-5 Proposed Street Classifications, page 2-21 (14MB .pdf)
2.6-6 Typical Street Section, page 2-22 (14MB .pdf)
2.6-7 Drainage Plan, page 2-24 (14MB .pdf)
2.6-8 Preliminary Demolition/Construction Staging Plan, page 2-26 (14MB .pdf)
2.7-1 Site Plan - Design Alternative Master Plan, page 2-27 (14MB .pdf)
3.1-1 Surficial Geology Map, page 3-3 (831KB .pdf)
3.1-2 Cross Section A, page 3-4 (831KB .pdf)
3.1-3 Cross Section B, page 3-5 (831KB .pdf)
3.1-4 Erosion Hazards, page 3-9 (831KB .pdf)
3.1-5 Steep Slope and Landslide Hazards, page 3-10 (831KB .pdf)
3.3-1 Drainage Basin Map, page 3-16 (401KB .pdf)
3.3-2 Regional Groundwater Flow Map, page 3-19 (401KB .pdf)
3.4-1 Existing Conditions and Vegetation Cover Types Map, page 3-28 (337KB .pdf)
3.8-1 Project Site and Surrounding Properties, page 3-62 (174KB .pdf)
3.9-1 Existing Land Use, page 3-70 (278KB .pdf)
3.9-2 Study Area Census Tracts, page 3-72 (278KB .pdf)
3.12-1 Views From Key Viewpoints, page 3-105 (125KB .pdf)
3.13-1 Recreational Facilities, page 3-107 (130KB .pdf)
3.15-1 Existing Study Area Characteristics, page 3-121 (225KB .pdf)
3.15-2 Existing AM Peak Hour Traffic Volumes, page 3-123 (225KB .pdf)
3.15-3 Existing PM Peak Hour Traffic Volumes, page 3-124 (225KB .pdf)
3.15-4 Existing Transit Routes, page 3-127 (225KB .pdf)
4.7-1 Approximate Sound Level Monitoring Locations, page 4-47 (116KB .pdf)
4.15-1 2012 No Action Alternative - AM Peak Hour Traffic Volumes, page 4-111 (2.7MB .pdf)
4.15-2 2012 No Action Alternative - PM Peak Hour Traffic Volumes, page 4-112 (2.7MB .pdf)
4.15-3 Anticipated Truck Construction Routes, page 4-117 (2.7MB .pdf)
4.15-4 Project Trip Generation, page 4-121 (2.7MB .pdf)
4.15-5 2012 With Proposed Master Plan - AM Peak Hour Project Trip Assignment, page 4-123 (2.7MB .pdf)
4.15-6 2012 With Proposed Master Plan - PM Peak Hour Project Trip Assignment, page 4-124 (2.7MB .pdf)
4.15-7 2012 With Proposed Master Plan - AM Peak Hour Traffic Volumes, page 4-125 (2.7MB .pdf)
4.15-8 2012 With Proposed Master Plan - PM Peak Hour Traffic Volumes, page 4-126 (2.7MB .pdf)
4.15-9 2012 With Alternative Master Plan - AM Peak Hour Project Trip Assignment, page 4-137 (2.7MB .pdf)
4.15-10 2012 With Alternative Master Plan - PM Peak Hour Project Trip Assignment, page 4-138 (2.7MB .pdf)
4.15-11 2012 With Alternative Master Plan - AM Peak Hour Traffic Volumes, page 4-140 (2.7MB .pdf)
4.15-12 2012 With Alternative Master Plan - PM Peak Hour Traffic Volumes, page 4-141 (2.7MB .pdf)
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Updated: December 2, 2003

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