Skip to main content

Seattle road tunnel moves forward

Plans are now in hand for a 2.7km mile tunnel in the US to be built in the city of Seattle in Washington State.
February 23, 2012 Read time: 1 min
Plans are now in hand for a 2.7km tunnel in the US to be built in the city of Seattle in Washington State. The tunnel would carry Highway 999 along the Seattle waterfront. The tunnel would run at depths down to 61m. One of the proposals would see the tunnel opening in late 2015. The 914 Washington State Department of Transportation set a budget of US$1.09 billion for the work. The tunnel will be built by Spanish firm 917 ACS and will be able to carry 110,000 vehicles/day.

For more information on companies in this article

Related Content

  • State of the art tunnel a conservation triumph
    May 2, 2012
    The opening of a 1.8km tunnel in southern England is designed to ease traffic bottlenecks in an environmentally sensitive area. Patrick Smith reports
  • State of the art tunnel a conservation triumph
    February 28, 2012
    The opening of a 1.8km tunnel in southern England is designed to ease traffic bottlenecks in an environmentally sensitive area. Patrick Smith reports
  • Norway’s record breaking undersea road tunnel
    February 25, 2015
    The world's deepest road tunnel is currently in construction near Stavanger in Norway but is only the prelude to even larger projects - report and photographs by Adrian Greeman. Norway's convoluted coastline of fjords and high mountains is famously scenic but also a major problem for transport and connections. The country has long experience of constructing tunnels as a result. Now a series of tunnels underway, or in design, around the oil industry city of Stavanger will stretch its skills more than usual.
  • Mumbai’s new coastal transport link
    July 6, 2022
    Mumbai’s new coastal road presents an ambitious and challenging project that will help improve the lives of the city’s inhabitants - Mike Woof writes