I-90 Express lane closures May, July

The Mercer Island Chamber of Commerce luncheon on March 5 will host speakers to discuss the May and July 1-90 bridge closures. The first phase of expansion joint replacement project will take place May 4-23, leaving the 1-90 express lanes closed around the clock. The main lanes will remain open. According to WSDOT, the project timing is crucial as the joints are aged and cracking. Engineers fear that the large steel joints will pop up and cause accidents if not replaced. The second phase of the project will occur July 5-28. All Westbound 1-90 lanes will be closed around the clock, with the center express lanes open. Drivers can still use all lanes east of Mercer Island. During the closures, drivers should anticipate delays up to 40 minutes east of Mercer Island, congestion on westbound SR-520, SR-522 and I-405, in addition to significant congestion on I-90. For more information, go to

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