Over the weekend of May 6 and 7, the Interstate 90 detours return again with an eastbound closure, allowing the Washington State Department of Transportation (WSDOT) to undertake light rail preparations inside the Mt Baker and Mercer Island tunnels, re-stripe roadways and other measures.

Starting at 11 p.m. on Friday, May 5, WSDOT will funnel eastbound traffic from Seattle to the center express lanes for construction purposes. This detour will end at 5 a.m. Monday.

Islanders can exit the eastbound express lanes at Island Crest Way or 77th Avenue Southeast. Drivers wishing to reach Bellevue from Mercer Island can enter the mainline eastbound I-90 roadway at Island Crest Way or East Mercer Way.

Click here for detour map and exit details. Click here to learn about other scheduled closures.

Currently, only one more directional closure of I-90 is planned between now and June, while the state builds all-day bus and carpool lanes next to the regular lanes. This work will allow the center I-90 roadway to be dedicated to Sound Transit light rail construction, starting June 3.