News

I-405/SR 167 Interchange Direct Connector flyover ramp near Renton opens to traffic on Feb. 21

Craig Smiley, communications, 425-456-8624

Critical link to 40-mile express toll lanes corridor will improve traffic operations by eliminating weaving

RENTON – Starting Thursday, Feb. 21, carpoolers on southbound Interstate 405 and northbound State Route 167 in Renton can use the new I-405/SR 167…

Northbound off-ramp from SR 99 opening for a new way to access downtown Seattle

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

Exit ramp to open in time for Tuesday morning commute

SEATTLE – The end of the holiday weekend brings the start of a new way for drivers and bus riders to get to downtown Seattle from northbound State…

Crunch time: Demolition of the Alaskan Way Viaduct begins

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

Contractor crews will demolish double-deck highway in sections duringthe next six months

SEATTLE – Eighteen years ago this month, the Nisqually earthquake shook, but did not topple, the State Route 99…

Public invited: WSDOT to discuss potential improvements at SR 104 and Shine/Paradise Bay Roads

Tina Werner, communications, 360-704-3270

Public invited: WSDOT to discuss potential improvements at SR 104 and Shine/Paradise Bay Roads

SHINE –Washington State Department of Transportation officials invite residents and local businesses later this month to hear potential strategies to reduce collisions…

Roundabout, paving coming to SR 510 near Lacey

Doug Adamson, communications, 360-357-2716

LACEY – Big improvements are coming for a busy portion of State Route 510 southeast of Lacey. On Monday, Feb. 11, Washington State Department of Transportation contractor Active Construction Inc. (ACI) will start building a new roundabout that will serve all users…

Proposed SR 282 Ephrata roundabout open house set for Feb. 6

David Kieninger, traffic engineer (509) 667-3080

EPHRATA – A dozen collisions in five years at the intersection of Dodson Road Northwest/A Street Southeast and State Route 282 prompted the Washington State Department of Transportation to consider adding a single-lane roundabout at that location.

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SR 99 tunnel set to open before Monday morning commute

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

Two-mile-long tunnel part of replacement for Seattle’s seismically vulnerable Alaskan Way Viaduct

SEATTLE – From a major earthquake to a massive machine that churned through two miles of soil, the path…

Gov. Inslee to cut ribbon for new SR 99 tunnel this weekend

Steve Peer, WSDOT communications, 425-301-2023

Thousands of participants slated to attend historic event in new tunnel and on old Alaskan Way Viaduct

SEATTLE – After nearly two decades of planning and construction, the State Route 99 tunnel under downtown Seattle is about to open. Foot traffic – not cars,…

New ramps, enhanced fish passage proposed for US 101/Shelton-Matlock interchange

Doug Adamson, communications, 360-357-2716

SHELTON – Consider it an effort that will help both fish and people get around. The Washington State Department of Transportation has hired design-build contractor Parsons/Scarsella to remove fish barriers along Coffee Creek and rebuild two ramps at the US 101/…

Final project to complete Tacoma HOV system begins in February

Cara Mitchell, communications, 360-357-2703

Construction widens I-5 north of the Tacoma Dome

TACOMA – After years of construction, work on the final HOV segment in Tacoma begins next month.

In February, Guy F. Atkinson Construction will begin work to design and build a wider Interstate 5 between…