Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive Search

United States

United States, Oregon - us/38


    1.5 km of 1.91 m-diameter soft ground tunnel plus numerous open cut reaches, shafts and connections. URS Greiner Woodward Clyde is geotechnical and tunnel design consultant, teamed with Montgomery Watson. Owner is City of Portland Bureau of Environmental Services. Invitations to bid expected late-1999 or early 2000. Details from www.urscorp.com December 1999.