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Washington State Department of Transportation
Northwest Region – 15700 Dayton Ave. N. – Shoreline, WA 98133 – 206-440-4000
TRAVEL ADVISORY
Sept. 24, 2026
UPDATE: Repair work has finished more than five days early and State Route 9 has reopened in both directions over the Lake Creek Bridge.
Contact: David Rasbach, communications, 206-719-0603 (mobile)
Both directions of SR 9 to close for 10 days to repair Lake Creek Bridge near Lake McMurray
Full closure scheduled to begin Monday morning, Sept. 21
LAKE MCMURRAY – Both directions of State Route 9 will close for 10 days beginning Monday, Sept. 21, to repair a bridge over Lake Creek north of Lake McMurray.
The Washington State Department of Transportation will make repairs to the bridge during the 10-day closure, and SR 9 will reopen Wednesday, Sept. 30, in its usual two-lane configuration. The bridge has been reduced to a single lane with a temporary traffic signal alternating northbound and southbound traffic since March 24 due to deteriorating deck conditions.
What to expect
Beginning at 6 a.m. Monday, Sept. 21, SR 9 will close to all traffic over the bridge (milepost 43) until 5 p.m. Wednesday, Sept. 30.
During the closure, northbound and southbound traffic can detour using SR 534, Interstate 5 and SR 538/College Way in both directions. People traveling through the area should add extra travel time to their plans.
The SR 9 Lake Creek Bridge is a wood truss bridge built in 1966. During the closure, WSDOT will replace portions of the timber deck and pave over the top with asphalt.
WSDOT bridges are inspected on a two-year cycle. The last inspection of this bridge took place in April 2025, and the bridge was determined to be in fair condition. This bridge is part of a statewide bridge system with infrastructure operating beyond its intended service life.
Real-time travel information is available via the WSDOT mobile app, the WSDOT travel map or by signing up for WSDOT's email updates.
Hyperlinks within the release:
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WSDOT keeps people, businesses and the economy moving by operating and improving the state's transportation systems. To learn more about what we're doing, go to www.wsdot.wa.gov/news for pictures, videos, news and blogs. Real-time traffic information is available at wsdot.com/traffic.
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