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WSDOT is continuing work for the failing expansion joint on the eastbound side of the I-90 East Channel Bridge. The emergency single-lane closure implemented last month will continue to be in place to prepare the area for temporary lane restriping which will help alleviate congestion.
WSDOT announced an updated plan for the restriping work: the agency is targeting a full eastbound I-90 closure to complete the temporary restriping on the East Channel Bridge (where the failing expansion joint is located). This closure will allow the restriping to be completed quickly while helping prevent backups onto Island streets. While the restriping work requires several days of dry weather and temperatures above 40 degrees, WSDOT is targeting the weekend of March 8 to complete this work if weather allows.
The restriping will slightly shrink lane widths in order to reopen a fourth lane on I-90. This should help ease the increased congestion experienced from the current lane closure. The speed limit will be adjusted for safety in that section (down to 45mph) to account for the slimmer lanes and limited shoulder access. Once completed, this temporary restriping will be in place until summer 2025 when WSDOT can replace the failing expansion joint.
The closure will start on the Seattle side with no cars coming across I-90 eastbound to the Island. This will prevent the rerouting of off-Island traffic onto Mercer Island streets. There will be an on-Island detour for Islanders needing to travel east: the only access point onto I-90 eastbound will be at the East Mercer Way I-90 on-ramp. Westbound I-90 and related on/off-ramps will operate as usual.
WSDOT is continuing to monitor conditions and will alert the City when this restriping work is confirmed. As always, you can see the latest I-90 conditions on WSDOT's Real-Time Travel Map.
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