Tunnel to replace Alaskan Way Viaduct, Seattle, US

20 January 2009

The central waterfront portion of the Alaskan Way Viaduct and Seawall is to be replaced with a US$ 1.9 billion tunnel. The 1.7 mile-long (2.74 km) bored tunnel - expected to be a stacked tube with two lanes in each direction, will cost just under US$ 2 billion. The total cost of the project is US$ 4.24 billion. This includes the entire viaduct corridor - over 2 miles (3.22 km), a surface street, a new seawall in the central waterfront, utility relocation, city streets and transit pathways, transit infrastructure, construction transit service and all prior program expenditures Video: Washington State Department of Transport (WSDOT)
Latest News
Manitowoc offers ‘fresh start’ for women in recovery
Brooke’s House and The Manitowoc Company are helping women forge lifelong skills in the manufacturing industry.
These 18 US firms won the inaugural GSA ‘Construction Awards’
The US agency named its favourite projects on federal property
Manitou launches scissor line
Three models to be introduced in following months