Greenbridge Draft Environmental Impact Statement
King County Housing AuthorityNovember 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) Table of contents Fact sheet (PDF*, 122KB) - Summary (PDF*, 207KB)
- Project description and alternatives (PDF*, 14MB)
- Affected environment
3.1 Earth (PDF*, 831KB)
3.2 Air Quality (PDF*, 22KB)
3.3 Water Resources (PDF*, 401KB)
3.4 Plants and Animals (PDF*, 337KB)
3.5 Fish Resources (PDF*, 46KB)
3.6 Energy Use (PDF*, 23KB)
3.7 Noise (PDF*, 50KB)
3.8 Environmental Health (PDF*, 174KB)
3.9 Land Use and Socioeconomics (PDF*, 278KB)
3.10 Environmental Justice (PDF*, 34KB)
3.11 Historic and Cultural Resources (PDF*, 34KB)
3.12 Aesthetics, Light and Glare (PDF*, 125KB)
3.13 Parks and Recreation (PDF*, 130KB)
3.14 Public Services and Utilities (PDF*, 60KB)
3.15 Transportation and Parking (PDF*, 225KB) - Impacts, mitigation measures and unavoidable adverse impacts
4.1 Earth (PDF*, 70KB)
4.2 Air Quality (PDF*, 38KB)
4.3 Water Resources (PDF*, 52KB)
4.4 Plants and Animals (PDF*, 35KB)
4.5 Fish Resources (PDF*, 35KB)
4.6 Energy Use (PDF*, 21KB)
4.7 Noise (PDF*, 116KB)
4.8 Environmental Health (PDF*, 22KB)
4.9 Land Use and Socioeconomics (PDF*, 145KB)
4.10 Environmental Justice (PDF*, 24KB)
4.11 Historic and Cultural Resources (PDF*, 17KB)
4.12 Aesthetics, Light and Glare (PDF*, 22KB)
4.13 Parks and Recreation (PDF*, 29KB)
4.14 Public Services and Utilities (PDF*, 97KB)
4.15 Transportation and Parking (PDF*, 2.7MB)
4.16 Irreversible and Irretrievable Commitment of Resources (PDF*, 14KB)
4.17 Local Short Term Uses of Environment & Long Term Productivity (PDF*, 14KB) - Coordination with agencies and tribes (PDF*, 2 MB)
References (PDF*, 58KB) Distribution list (PDF*, 21KB) Appendices Appendix A. Phase I Environmental Site Assessment Summary (PDF*, 1.1MB)
Appendix B. Wetland Delineation (PDF*, 552KB)
Appendix C. Aquatic Species Descriptions (PDF*, 65KB)
Appendix D. Views from Key Viewpoints (PDF*, 335KB)
Appendix E. Relationship to Plans, Policies and Regulations (PDF*, 174KB)
Appendix F. Greenbridge Planning and Community Involvement (PDF*, 272KB)
Appendix G. Sound Level Measurement Results (PDF*, 22KB)
Appendix H. Biological Evaluation (PDF*, 1.2MB)
Appendix I. Heritage Resources Investigation Report (PDF*, 17.9MB) List of tables
| 1.8-1 |
Summary of Impacts, page S-10 (PDF*, 207KB) |
| 1.8-2 |
Summary of Mitigation Measures, page S-29 (PDF*, 207KB) |
| 2.6-1 |
Proposed Housing Development Program, page 2-15 (PDF*, 14MB) |
| 2.6-2 |
Proposed Master Plan - Total Mass Earthwork Required, page 2-25 (PDF*, 14MB) |
| 2.7-1 |
Housing Type - Analysis of Possible Differences - Between the Proposed Master Plan and Design Alternative Master Plan, page 2-28 (PDF*, 14MB) |
| 2.7-2 |
Total Earthwork Comparison, page 2-31 (PDF*, 14MB) |
| 3.1-1 |
Summary of Exploration Borings and Test Pits , page 3-6 (PDF*, 831KB) |
| 3.4-1 |
Key to Bruan-Blanquet Cover-Abundance Scale , page 3-24 (PDF*, 337KB) |
| 3.4-2 |
Plant Species and Composition of Representative Habitats, page 3-25 (PDF*, 337KB) |
| 3.4-3 |
Endangered, Threatened and Sensitive Vascular Plants, page 3-27 (PDF*, 337KB) |
| 3.4-4 |
Wildlife Species and Habitat, page 3-34 (PDF*, 337KB) |
| 3.4-5 |
Wildlife Species, page 3-35 (PDF*, 337KB) |
| 3.5-1 |
Aquatic Species Use of Project Area Waterbodies, page 3-45 (PDF*, 46KB) |
| 3.6-1 |
Existing Residential Electrical Energy Use per Unit Type, page 3-51 (PDF*, 23KB) |
| 3.6-2 |
Existing Non-Residential Gas and Electrical Energy Use, page 3-51 (PDF*, 23KB) |
| 3.7-1 |
Sound Levels Produced by Common Noise Sources , page 3-54 (PDF*, 50KB) |
| 3.7-2 |
King County Maximum Permissible Levels and Construction Noise Limits (dBA), page 3-56 (PDF*, 50KB) |
| 3.7-3 |
Housing and Urban Development Noise Guidelines , page 3-57 (PDF*, 50KB) |
| 3.7-4 |
FHWA Roadway Noise Abatement Criteria (dBA), page 3-59 (PDF*, 50KB) |
| 3.7-5 |
Measured Existing Sound Levels, page 3-60 (PDF*, 50KB) |
| 3.8-1 |
Summary of Regulatory Database Search Listings of Potential Environmental Concerns, page 3-65 (PDF*, 174KB) |
| 3.9-1 |
Existing Land Uses On-Site, page 3-68 (PDF*, 278KB) |
| 3.9-2 |
Population Growth Trends, page 3-73 (PDF*, 278KB) |
| 3.9-3 |
Racial Characteristics of the Study Area Population, page 3-74 (PDF*, 278KB) |
| 3.9-4 |
Ethnicity of Park Lake Homes Residents, page 3-75 (PDF*, 278KB) |
| 3.9-5 |
Age Profile, page 3-75 (PDF*, 278KB) |
| 3.9-6 |
Age of Housing, page 3-77 (PDF*, 278KB) |
| 3.9-7 |
Units by Structure Type, page 3-78 (PDF*, 278KB) |
| 3.9-8 |
Unit Size Comparison, page 3-79 (PDF*, 278KB) |
| 3.9-9 |
Housing Tenure, 1990 and 2000, page 3-79 (PDF*, 278KB) |
| 3.9-10 |
Composition of Rental Housing Stock, page 3-80 (PDF*, 278KB) |
| 3.9-11 |
Rent Changes in White Center Area, 2000-2002, page 3-82 (PDF*, 278KB) |
| 3.9-12 |
2002 Average Rents by Area and Unit Type, page 3-82 (PDF*, 278KB) |
| 3.9-13 |
Changes in Average Rents by Area and Unit Type, 2000-2002, page 3-83 (PDF*, 278KB) |
| 3.9-14 |
Comparative Vacancy Rates 2002, page 3-84 (PDF*, 278KB) |
| 3.9-15 |
White Center Vacancy Rates 2000 - 2002, page 3-84 (PDF*, 278KB) |
| 3.9-16 |
2002 Federal Income Guidelines, page 3-85 (PDF*, 278KB) |
| 3.9-17 |
Affordability of Market Rents at 30%, 50%, and 80% of Median Income, page 3-86 (PDF*, 278KB) |
| 3.9-18 |
Sales Activity in Single Family Homes, 2000-2002, page 3-87 (PDF*, 278KB) |
| 3.9-19 |
Affordability of Home Purchase, 2-person Household, page 3-88 (PDF*, 278KB) |
| 3.9-20 |
Affordability of Home Purchase, 3-person Household, page 3-88 (PDF*, 278KB) |
| 3.9-21 |
Affordability of Home Purchase, 4-person Household, page 3-88 (PDF*, 278KB) |
| 3.9-22 |
Affordability of Home Purchase in West Seattle, page 3-89 (PDF*, 278KB) |
| 3.9-23 |
King County Employment Trends by Job Category, page 3-89 (PDF*, 278KB) |
| 3.9-24 |
Study Area Employment by Job Category, page 3-90 (PDF*, 278KB) |
| 3.10-1 |
2003 Federal Income Guidelines, page 3-94 (PDF*, 34KB) |
| 3.10-2 |
Median Household Incomes, page 3-96 (PDF*, 34KB) |
| 3.10-3 |
Demographic Summary of Environmental Justice Study Area, page 3-97 (PDF*, 34KB) |
| 3.15-1 |
Existing AM and PM Peak Hour LOS Summary, page 3-125 (PDF*, 225KB) |
| 3.15-2 |
Existing Transit Service, page 3-126 (PDF*, 225KB) |
| 3.15-3 |
Collision Summary: 1997-2001, page 3-129 (PDF*, 225KB) |
| 4.2-1 |
Calculated Maximum Peak 1- and 8-Hour CO Concentrations, page 4-16 (PDF*, 38KB) |
| 4.7-1 |
Typical Construction Equipment Noise, page 4-43 (PDF*, 116KB) |
| 4.7-2 |
Predicted Off-Site Traffic Noise Levels, page 4-46 (PDF*, 116KB) |
| 4.7-3 |
2012 TNM - Calculated On-Site Traffic Noise Levels, page 4-49 (PDF*, 116KB) |
| 4.9-1 |
Comparison of Existing & Proposed Land Uses On-Site, page 4-60 (PDF*, 145KB) |
| 4.9-2 |
Proposed Master Plan Annual Direct Construction Jobs Created, page 4-64 (PDF*, 145KB) |
| 4.9-3 |
Design Alternative Master Plan Direct Annual Construction Jobs Created, page 4-67 (PDF*, 145KB) |
| 4.9-4 |
Housing Mix After Redevelopment, page 4-69 (PDF*, 145KB) |
| 4.9-5 |
Staged Demolition and Development Schedule, page 4-70 (PDF*, 145KB) |
| 4.9-6 |
Rental Unit Bedroom Mix Pre- and Post-Redevelopment, page 4-73 (PDF*, 145KB) |
| 4.9-7 |
Redevelopment Schedule, page 4-75 (PDF*, 145KB) |
| 4.9-8 |
Housing Units Before and After Redevelopment, page 4-75 (PDF*, 145KB) |
| 4.9-9 |
Replacement Housing Plans, page 4-76 (PDF*, 145KB) |
| 4.15-1 |
Peak Hour LOS Summary - Existing and 2012 No Action Alternative, page 4-113 (PDF*, 2.7MB) |
| 4.15-2 |
Soils Hauling Calculations, page 4-116 (PDF*, 2.7MB) |
| 4.15-3 |
Greenbridge Trip Generation, page 4-120 (PDF*, 2.7MB) |
| 4.15-4 |
AM and PM Peak Hour Traffic Volume Impact - Proposed Master Plan, page 4-122 (PDF*, 2.7MB) |
| 4.15-5 |
Peak Hour LOS Summary - 2012 No Action Alternative and Proposed Master Plan, page 4-128 (PDF*, 2.7MB) |
| 4.15-6 |
Residential Parking, page 4-131 (PDF*, 2.7MB) |
| 4.15-7 |
Existing and Design Alternative Master Plan Housing, page 4-134 (PDF*, 2.7MB ) |
| 4.15-8 |
Soils Hauling Calculations, page 4-135 (PDF*, 2.7MB) |
| 4.15-9 |
Estimated Vehicle Trip Generation for Design Alterative Master Plan, page 4-139 (PDF*, 2.7MB) |
| 4.15-10 |
AM and PM Peak Hour Traffic Volume Impact - Design Alternative Master Plan, page 4-142 (PDF*, 2.7MB) |
| 4.15-11 |
Peak Hour LOS Summary - 2012 No Action Alternative and Design Alternative Master Plan, page 4-143 (PDF*, 2.7MB) | List of figures
| 2.1-1 |
Regional Map, page 2-2 (PDF*, 14MB) |
| 2.1-2 |
Vicinity Map, page 2-3 (PDF*, 14MB) |
| 2.3-1 |
Existing Site Plan, page 2-7 (PDF*, 14MB) |
| 2.6-1 |
Proposed Site Plan, page 2-13 (PDF*, 14MB) |
| 2.6-2 |
Unit Range Plan, page 2-14 (PDF*, 14MB) |
| 2.6-3 |
Proposed Parks, Open Spaces and Community Facilities, page 2-17 (PDF*, 14MB) |
| 2.6-4 |
Street Tree and Landscape Plan, page 2-19 (PDF*, 14MB) |
| 2.6-5 |
Proposed Street Classifications, page 2-21 (PDF*, 14MB) |
| 2.6-6 |
Typical Street Section, page 2-22 (PDF*, 14MB) |
| 2.6-7 |
Drainage Plan, page 2-24 (PDF*, 14MB) |
| 2.6-8 |
Preliminary Demolition/Construction Staging Plan, page 2-26 (PDF*, 14MB) |
| 2.7-1 |
Site Plan - Design Alternative Master Plan, page 2-27 (PDF*, 14MB) |
| 3.1-1 |
Surficial Geology Map, page 3-3 (PDF*, 831KB) |
| 3.1-2 |
Cross Section A, page 3-4 (PDF*, 831KB) |
| 3.1-3 |
Cross Section B, page 3-5 (PDF*, 831KB) |
| 3.1-4 |
Erosion Hazards, page 3-9 (PDF*, 831KB) |
| 3.1-5 |
Steep Slope and Landslide Hazards, page 3-10 (PDF*, 831KB) |
| 3.3-1 |
Drainage Basin Map, page 3-16 (PDF*, 401KB) |
| 3.3-2 |
Regional Groundwater Flow Map, page 3-19 (PDF*, 401KB ) |
| 3.4-1 |
Existing Conditions and Vegetation Cover Types Map, page 3-28 (PDF*, 337KB) |
| 3.8-1 |
Project Site and Surrounding Properties, page 3-62 (PDF*, 174KB) |
| 3.9-1 |
Existing Land Use, page 3-70 (PDF*, 278KB) |
| 3.9-2 |
Study Area Census Tracts, page 3-72 (PDF*, 278KB) |
| 3.12-1 |
Views From Key Viewpoints, page 3-105 (PDF*, 125KB) |
| 3.13-1 |
Recreational Facilities, page 3-107 (PDF*, 130KB) |
| 3.15-1 |
Existing Study Area Characteristics, page 3-121 (PDF*, 225KB) |
| 3.15-2 |
Existing AM Peak Hour Traffic Volumes, page 3-123 (PDF*, 225KB) |
| 3.15-3 |
Existing PM Peak Hour Traffic Volumes, page 3-124 (PDF*, 225KB) |
| 3.15-4 |
Existing Transit Routes, page 3-127 (PDF*, 225KB) |
| 4.7-1 |
Approximate Sound Level Monitoring Locations, page 4-47 (PDF*, 116KB) |
| 4.15-1 |
2012 No Action Alternative - AM Peak Hour Traffic Volumes, page 4-111 (PDF*, 2.7MB) |
| 4.15-2 |
2012 No Action Alternative - PM Peak Hour Traffic Volumes, page 4-112 (PDF*, 2.7MB) |
| 4.15-3 |
Anticipated Truck Construction Routes, page 4-117 (PDF*, 2.7MB) |
| 4.15-4 |
Project Trip Generation, page 4-121 (PDF*, 2.7MB) |
| 4.15-5 |
2012 With Proposed Master Plan - AM Peak Hour Project Trip Assignment, page 4-123 (PDF*, 2.7MB) |
| 4.15-6 |
2012 With Proposed Master Plan - PM Peak Hour Project Trip Assignment, page 4-124 (PDF*, 2.7MB) |
| 4.15-7 |
2012 With Proposed Master Plan - AM Peak Hour Traffic Volumes, page 4-125 (PDF*, 2.7MB) |
| 4.15-8 |
2012 With Proposed Master Plan - PM Peak Hour Traffic Volumes, page 4-126 (PDF*, 2.7MB) |
| 4.15-9 |
2012 With Alternative Master Plan - AM Peak Hour Project Trip Assignment, page 4-137 (PDF*, 2.7MB) |
| 4.15-10 |
2012 With Alternative Master Plan - PM Peak Hour Project Trip Assignment, page 4-138 (PDF*, 2.7MB) |
| 4.15-11 |
2012 With Alternative Master Plan - AM Peak Hour Traffic Volumes, page 4-140 (PDF*, 2.7MB) |
| 4.15-12 |
2012 With Alternative Master Plan - PM Peak Hour Traffic Volumes, page 4-141 (PDF*, 2.7MB) | *Note: To view PDFs, free software from Adobe is required. See helpful hints for assistance. To request information in alternate formats for people with disabilities, call 206-296-6600 or TTY 206-296-7217.
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