The Washington State Department of Transportation will close all lanes of Interstate 90 across Lake Washington several times from Thursday, July 30, through Sunday, Aug. 2, to accommodate air show practices and performances by the U.S. Navy Blue Angels for this year’s Seafair festivities.

The closure times include all mainline I-90 lanes between Interstate 5 in Seattle and Island Crest Way on Mercer Island, and the entire length of the I-90 Center Roadway. Also, the bridge will be closed to all pedestrians and bicyclists up to 30 minutes prior to posted closure times.

The exits from westbound I-90 to Island Crest Way and East Mercer Way on Mercer Island will remain open, although drivers should note that heavy congestion during these closures restricts access to the exits.

The listed times are for mainline I-90 closures. Drivers are reminded that the Center Roadway will close up to two hours before the times indicated. The following ramps can be expected to close 30 minutes prior to posted closures depending on congestion: East Mercer Way to West I-90, 76th Ave. SE to West I-90, West Mercer Way to West I-90 and East I-90 to West Mercer Way.

Thursday, July 30,

• First Closure: 9:45 a.m.-12:00 p.m.

• Second Closure: 1:15 p.m. – 2:30 p.m.

Friday, July 31, 12:45 p.m. – 2:40 p.m. (practice show)

Saturday, August 1, 12:45 p.m. – 2:40 p.m. (full show)

Sunday, August 2, 12:45 p.m. – 2:40 p.m. (full show)