Program Videos and Interactive Tools

Program Videos and Interactive Tools

Construction Cameras | Construction Videos | Simulations

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).

Construction Videos

SR 99 Tunnel:

Raw video: Bertha mines through the southern wall of the access pit (February 2015). View on YouTube.
Raw video: Peparing for Bertha’s entrance into the access pit (February 2015). View on YouTube.
Time-lapse video: Building a super crane (February 2015). View on YouTube.
Raw video: Digging down to repair Bertha (January 2015). View on YouTube.
Time-lapse video: Crews demolish and replace a section of SR 99 (August 2014). View on YouTube.
Narrated video: STP’s work plan for repairing Bertha (June 2014). View on YouTube.
Raw video: Building underground walls for Bertha’s access pit (June 2014). View on YouTube.
Raw video: Removing Bertha's starting blocks (March 2014). View on YouTube.
Raw video: Bertha on the move (September 2013). View on YouTube.
Time-lapse video: Preparing to launch Bertha (August 2013). View on YouTube.
Narrated video: Building a new State Route 99 through Seattle (May 2013). View on YouTube.
Time-lapse video: Bertha loaded for shipment to Seattle (March 2013). View on YouTube.
Raw video: SR 99 tunneling machine ceremony in Osaka, Japan (December 2012). View on YouTube.

South-end viaduct replacement:

Time-lapse video: South-end bridge completion (September 2012). View on YouTube.
Time-lapse video: South-end viaduct demolition (October 2011). View on YouTube.
Raw video: Crews demolish a viaduct span near the stadiums (October 2011). View on YouTube.
Raw video: Two munchers attack the viaduct during demolition (October 2011). View on YouTube.
Raw video: Crunchers work to break loose beams and roadway (October 2011). View on YouTube.

Simulations

Tunneling machine animation (2013). Courtesy of Hitachi Zosen Corp., this animation shows how the world’s largest tunneling machine works. View on YouTube.
SR 99 south-end construction (2012). Interactive simulation describes how the tunnel's south portal and the south end viaduct replacement 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.
SR 99 tunnel north-end construction (2011). Interactive simulation describes how the tunnel's north portal and the City's two-way Mercer Street project will be constructed.
Tunnel underground video (2010). Shows the SR 99 tunnel’s route beneath downtown Seattle and its proximity to other underground structures. 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.
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.