A nifty BIM-type view of the proposed bored tunnel for Washington SR 99, the tunnel to replace the aging Alaskan Way Viaduct along Seattle’s waterfront. It’s pretty neat to see the piles and foundations for other structures and major utilities as the bore passes by them. A little on the longer size, at around 5 minutes.
Project Related
WSDOT SR 519 Geofoam Photos on Flickr
I came across these great photos of geofoam use on the WSDOT SR 519 project which has been in service over a year now. They needed geofoam fill on the east and west bridge approaches […]
Comings and Goings
Golder Associates to Acquire Alan Auld Group
Golder Associates will acquire the U.K.-based Alan Auld Group of companies with offices in the U.K., Canada, and the U.S. Alan Auld Group is a global provider of specialized engineering design and construction services for underground […]
Project Related
Devil’s Slide Tunnel, Project Updates and Geotechnical Info
Devil’s Slide is an infamous landslide along California’s Highway 1 or Pacific Coast Highway near Pacifica, just south of the San Francisco Bay area. Caltrans’ Devil’s Slide Tunnel project is an effort to bypass that slide and make the heavily traveled roadway safe for drivers and to eliminate the maintenance and traffic hassles caused by slope failures blocking the road. We first covered the project back in September of 2007 when the tunnel portion of the project commenced. In that post, you can find a Google Earth KML File showing the location of the tunnels and the new bridges associated with the project. In this post, I’ll provide you with some updated progress information as well as some background on the geotechnical and other aspects of the project. More links and videos are at the end of the post. (Photo by Kim Komenich, San Francisco Chronicle). […]