All lanes and ramps on I-90 between Seattle and Mercer Island are closing for the Boeing Seafair Air Show featuring the Blue Angels.

I-90 floating bridge closures

  • Thursday, Aug. 2: 9:45 a.m. to 12:15 p.m. and 1 to 2:45 p.m. (practice)
  • Friday, Aug. 3 - Sunday, Aug. 5: 12:55 to 2:45 p.m. (Seafair Air Show)

Ramp closures in Seattle

  • Northbound I-5 to eastbound I-90 (up to 30 minutes prior)
  • Southbound I-5 to eastbound I-90 (up to 30 minutes prior)
  • Northbound Rainier Avenue South to eastbound I-90 (up to 30 minutes prior)
  • Southbound Rainier Avenue South to eastbound I-90 (up to 30 minutes prior)

SR-520 open during I-90 closures

During the I-90 closures, the SR-520 floating bridge will remain open to traffic, and tolls will be collected according to the rate schedule.