On Nov. 4, 2008, voters of the Central Puget Sound region approved the Sound Transit 2 ballot measure. The plan adds regional express bus and commuter rail service while building 36 additional miles of light rail to form a 55-mile regional system. The following documents provide additional details about individual projects contained in the Mass Transit Expansion Plan. These projects were adopted as part of the proposal by the Sound Transit Board of Directors on July 24, 2008. These documents were created for planning purposes and to generate cost estimates. Sound Transit provided updated infomation to the public about each project on this list as they are further developed.
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Sound Transit 2
(PDF Document | 2MB) Updated 12/10/2018
ST2 Plan Appendices
ST2 Appendix A: Detailed Description of Facilities and Estimated Costs
(PDF Document | 991kB) Updated 12/10/2018
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ST2 Appendix B: Financial Policies
(PDF Document | 907kB) Updated 12/10/2018
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ST2 Appendix C: Benefits, Costs, Revenues, Capacity and Reliability
(PDF Document | 1MB) Updated 12/10/2018
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ST2 Appendix D: Social, Economic and Environmental Impacts; Performance Characteristics by Mode; and Integration with Regional Land Use
(PDF Document | 1MB) Updated 12/10/2018
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North Corridor Projects
N06: Link LRT - Extension from University of Washington to Northgate (Seattle)
(PDF Document | 82kB) Updated 12/10/2018
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N07a: First Hill Link Connector: IDS to Capitol Hill (John St.) via First Hill (Seattle)
(PDF Document | 88kB) Updated 12/10/2018
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N22: Mukilteo Station Access (Snohomish)
(PDF Document | 143kB) Updated 12/10/2018
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N23a: New Permanent Station at Edmonds (Snohomish)
(PDF Document | 84kB) Updated 12/10/2018
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N39: Link LRT – Extension from Northgate to Lynnwood TC (Terminal) (North King/Snohomish)
(PDF Document | 66kB) Updated 12/10/2018
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East Corridor Projects
E01: Link LRT - Extension from Downtown Seattle to Bellevue CBD (East King)
(PDF Document | 55kB) Updated 12/10/2018
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E02: Link LRT - Extension from Downtown Bellevue to Overlake Transit Center (East King)
(PDF Document | 59kB) Updated 12/10/2018
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E20b: ST Express - Contribution to Bothell Parking Garage/Transit Center(East King)
(PDF Document | 285kB) Updated 12/10/2018
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E28b: LRT Preliminary Engineering/Engineering Overlake Transit Center to Downtown Redmond(East King)
(PDF Document | 65kB) Updated 12/10/2018
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E32b: Contribution to Partnership for Eastside BNSF Passenger Rail(East King)
(PDF Document | 564kB) Updated 12/10/2018
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South Corridor Projects
S27: Link LRT - Extension from SeaTac Airport to South 200th Street
(PDF Document | 50kB) Updated 12/10/2018
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S28: Link LRT - Extension from South 200th to Kent-Des Moines Road via SR 99
(PDF Document | 67kB) Updated 12/10/2018
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S29A: Link LRT - Extension from Kent/Des Moines - S 272nd via SR 99
(PDF Document | 64kB) Updated 12/10/2018
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S7b: Link LRT - Tacoma Link Extension Contribution
(PDF Document | 2MB) Updated 12/10/2018
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S131: Link LRT - Right-of-Way Preservation: South Federal Way to Tacoma Dome
(PDF Document | 31kB) Updated 12/10/2018
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S132: Link LRT - Environmental & PE: Kent-Des Moines Rd to Tacoma Dome
(PDF Document | 69kB) Updated 12/10/2018
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S24: Sounder - Lakewood–Seattle Expanded Sounder Service
(PDF Document | 229kB) Updated 12/10/2018
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S16: Parking Expansion at Tacoma Dome Station
(PDF Document | 142kB) Updated 12/10/2018
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S17: Sounder - Permanent Station at Tukwila
(PDF Document | 164kB) Updated 12/10/2018
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S109: Sounder - Kent Station Access
(PDF Document | 84kB) Updated 12/10/2018
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S18b: Sounder - Auburn Station Access
(PDF Document | 139kB) Updated 12/10/2018
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S20: Sounder - Sumner Station Access
(PDF Document | 144kB) Updated 12/10/2018
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S21: Sounder - Puyallup Station Access
(PDF Document | 131kB) Updated 12/10/2018
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S22: Sounder - South Tacoma Access
(PDF Document | 142kB) Updated 12/10/2018
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S23b: Sounder - Lakewood Station Access
(PDF Document | 135kB) Updated 12/10/2018
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S110: Sounder - 8-Car Platform Extensions
(PDF Document | 74kB) Updated 12/10/2018
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S25: Sounder - Track and Structure Upgrades between Tacoma Dome Station and Reservation Junction
(PDF Document | 72kB) Updated 12/10/2018
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S15b: Express Bus - Shared Funding for Parking Garage at Burien Transit Center
(PDF Document | 137kB) Updated 12/10/2018
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Systemwide Projects
SYS-LRT: Link LRT - Maintenance Bases, Vehicles and Operations for ST2 Expansion
(PDF Document | 28kB) Updated 12/10/2018
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SYS-BUS: Express Bus - ST Express Maintenance and Operations Facilities and Fleet Expansion
(PDF Document | 34kB) Updated 12/10/2018
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SYS-RAIL: Sounder - Sounder Yard and Shops Facility
(PDF Document | 23kB) Updated 12/10/2018
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SYS-PLANNING: Planning for the Future: Planning Studies
(PDF Document | 90kB) Updated 12/10/2018
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