Local Information

SR 99 tunnel north access contract awarded

Wednesday, January 15, 2014 - 11:52

Laura Newborn, Alaskan Way Viaduct Replacement Program communications, 206-805-2871; 206-639-8577 (mobile)

SEATTLE – Construction of new ramps that will connect the existing lanes of State Route 99 to the north entrance of the future SR 99 tunnel will get underway this winter.

The Washington State Department of Transportation awarded the $41.6 million contract to Guy F. Atkinson Construction, LLC of Renton, Wash. The contract is nearly $4.5 million under WSDOT’s estimate.

The SR 99 North Access Connection Project will connect the SR 99 tunnel’s north entrance at Harrison Street to the existing roadway north of the Mercer Street bridge. It will also build new on- and off-ramps at Republican and Harrison streets, extend Sixth Avenue North between Harrison and Mercer streets, and improve water and sewer lines in the area.

There is already heavy construction in the neighborhood. Seattle Tunnel Partners is building the tunnel’s north entrance and the Seattle Department of Transportation is building the new Mercer Corridor.

“All of these projects are key to opening the tunnel on time,” said Brian Nielsen, director of engineering for the Alaskan Way Viaduct Replacement Program. “We are working closely with our partners to make sure that happens while minimizing disruptions to the traveling public.”

For an interactive map as well as more information on the Alaskan Way Viaduct Replacement Program, visit www.alaskanwayviaduct.org.

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