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Alaskan Way Viaduct and Seawall Replacement - Library


Environmental Documents  |  Program History  |  Public Comments  |  Previous Alternatives


The following documents provide information on the viaduct replacement program. Use the project links to the left to learn more.

Program information

South end viaduct replacement

Central viaduct replacement - bored tunnel alternative

Safety

Simulations
Note: WMV files require Windows Media Player.

  • The July 2009 bored tunnel video shows an early design concept for the proposed tunnel and the access that would be provided at its north and south portals. View on YouTube or download WMV file.
  • The July 2009 waterfront boulevard video shows an early concept for the new Alaskan Way, which would be built in the footprint of the viaduct once it's removed. View on YouTube or download WMV file.
  • The tunnel boring machine animation explains how a bored tunnel is constructed. View on YouTube or download WMV file.