Program Videos and Interactive Tools

Program Videos and Interactive Tools

 

Construction Cameras

Check the view from our live construction cameras.

Note for iPhone/iPad users: Download the OxBlue app. Select "open link" and type alaskanwayviaductreplacement (no spaces).

 

Simulations

SR 99 tunnel south portal and South Holgate to South King Street construction (2012) - Interactive simulation describes how the tunnel's south portal and the south end viaduct replacement will be constructed.
SR 99 tunnel north portal and Mercer Corridor construction (2011) - Interactive simulation describes how the tunnel's north portal and the City's two-way Mercer Street project will be constructed.
SR 99 construction bypass drive-through (2011) shows how SR 99 operates after October 2011, when the viaduct's south end was demolished. View on YouTube .
Tunnel drive-through video (2010) shows an early design concept for the SR 99 tunnel and the access provided at its north and south portals. View on YouTube or download WMV file .
Tunnel underground video (2010) shows the SR 99 tunnel’s route beneath downtown Seattle and its proximity to other underground structures. View on YouTube or download WMV file .
Simulated collapse of Alaskan Way seawall and viaduct (2009) shows what could happen to both structures if a strong earthquake were to shake the Puget Sound region. View on YouTube or download WMV file.
Tunneling machine animation (2013) - Courtesy of Hitachi Zosen Corp., this animation shows how the world’s largest tunneling machine works. View on YouTube or download WMV file.
Building a new State Route 99 through Seattle (2013) - Bertha, the SR 99 tunneling machine, has arrived in Seattle. This short video provides an overview of Bertha’s journey and the work WSDOT is doing to replace the SR 99 Alaskan Way Viaduct. View on YouTube or download WMV file.

Construction videos

SR 99 Tunnel Project videos:

  • March 2014: Removing Bertha's starting blocks (view on YouTube).
  • September 2013: SR 99 tunnel machine on the move (view on YouTube).
  • August 2013: Preparing to launch the SR 99 tunneling machine beneath Seattle, time-lapse video (view on YouTube).
  • March 2013: SR 99 tunneling machine loaded onto the Jumbo Fairpartner in Osaka, Japan (view on YouTube). Courtesy of Jumbo Shipping.
  • December 2012: SR 99 tunneling machine ceremony in Osaka, Japan (view on YouTube).
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  • October 2011 demolition videos:

 

South end viaduct replacement: