The Seafair Weekend Air Show will close both directions of the I-90 Mainline and Express Lanes (Center Roadway) to all vehicles, pedestrians and cyclists, from the I-5 Interchange to Island Crest Way on Mercer Island, on Thursday, Aug. 4, 2016 through Sunday, Aug. 7, 2016.
Hours of closure: Thursday, from 9:45 a.m. to noon, and 1:15 p.m. to 2:40 p.m.; Friday, Saturday and Sunday, from 1:15 p.m. to 2:40 p.m. Associated I-90 ramps will also be closed.
See more on WSDOT's website.