Local Information

New SR 99 off-ramp construction starts this summer

Monday, June 20, 2016 - 14:40

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

Contract awarded for a northbound exit to downtown

SEATTLE – Construction will soon begin on a new flyover off-ramp designed to connect the northbound lanes of State Route 99 to Seattle’s stadiums, Pioneer Square and downtown Seattle. 

The Washington State Department of Transportation awarded the $3.56 million contract to Interwest Construction, Inc. of Burlington, WA to build the ramp to South Dearborn Street which will allow northbound traffic to exit in Seattle’s SODO neighborhood when the new SR 99 tunnel opens.

South Dearborn Street Off-Ramp Bridge Project rendering

“The flyover ramp is an important piece of the larger Alaskan Way Viaduct Replacement Program,” said David Sowers, deputy program administrator for the Alaskan Way Viaduct Replacement Program. “And drivers should not worry about construction delays as the ramp will be built in the existing SR 99 work zone near the stadiums.”

WSDOT and Interwest expect to sign a contract giving notice to proceed later this month. Construction activities are expected to start in July and last approximately six months. The new off-ramp will open to motorists at the same time as the new SR 99 tunnel, currently scheduled for 2018.

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