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A vibrant Seattle through transportation excellence Grace Crunican, Director

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SDOT Alaskan Way Viaduct Home
City of Seattle Alaskan Way Viaduct
Alaskan Way Viaduct and Seawall Replacement Project (WSDOT)
Contracting Opportunities
Emergency Traffic Management and Closure Plan
U.S. Army Corps of Engineers
Alaskan Way Viaduct Freight Mobility
Alaskan Way Seawall
Urban Mobility Plan

Urban Mobility Plan

In May 2007, the Seattle City Council requested the Seattle Department of Transportation develop an Urban Mobility Plan as a solution for replacing the Alaskan Way Viaduct. The Urban Mobility Plan will use a systems approach, including enhanced transit service, surface street and highway improvements and other transportation programs and policies. It will focus on the movement of people and goods to and through Downtown, rather than maintaining vehicle capacity of the existing SR99 corridor.

The plan will:

  1. improve mobility and access to and through Seattle’s Center City and
  2. replace the Alaskan Way Viaduct with a surface street along Seattle’s central waterfront.

SDOT is leading this effort, in close coordination with King County and WSDOT through the Partnership Process for the Central Waterfront.

The Plan will be guided by the goals and policies of the City’s Comprehensive Plan, the Transportation Strategic Plan and overall policy direction provided by the City Council through the authorizing legislation.

Through the Urban Mobility Plan, The City of Seattle, with our consultant partners, has developed a briefing book that provides information about how the transportation system works today, as well as what is known or projected about the future, and how other cities have handled similar challenges.

Development

The development of the Urban Mobility Plan was included in the open and transparent public process and evaluation for the Alaskan Way Viaduct and Seawall Central Waterfront Process.

The report on the Urban Mobility Plan is being completed and will be based on the I-5/Surface/Transit Hybrid scenario that was developed as part of the Central Waterfront Process.

In January 2009, Mayor Greg Nickels, Governor Gregoire and King County Executive Sims announced their recommendation that a bored tunnel, along with improvements to transit, city surface streets and the city’s waterfront, replace the Alaskan Way Viaduct along the central waterfront.

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