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The Blue Angels are gearing up for Seafair for the first time in two years and that means the Interstate 90 floating bridge will be shut down several times over the next few days while the Blue Angels practice, then put on a full show this weekend.

The Washington State Department of Transportation will close I-90 from I-5 in Seattle to Island Crest Way on Mercer Island during practice flights and performances Thursday through Sunday.

Certain I-90 and I-5 ramps will also close 30 minutes-to-one hour before flight times. Drivers who need to cross Lake Washington should plan to do so at least one hour before the closures or use an alternate route, such as I-405 or State Route 522.

I-90 closure schedule:

  • Thursday, July 31: 9:45 a.m. noon; 1:15 2:40 p.m. (practice)
  • Friday, Aug. 1: 12:15 to 2:40 p.m. (practice)
  • Saturday, Aug. 2: 12:15 to 2:40 p.m. (Seafair airshow)
  • Sunday, Aug. 3: 12:15 to 2:40 p.m. (Seafair airshow)

Ramp closures:

  • Both directions of I-5 to eastbound I-90 ramp (closed up to 30 minutes prior to practice or show)
  • Rainier Avenue ramps to eastbound I-90 (closed up to 30 minutes prior to practice or show)
  • 76th Avenue to westbound I-90 (closed up to 30 minutes prior to practice or show)
  • Island Crest Way to westbound I-90 (closed up to 30 minutes prior to practice or show)
  • Eastbound I-90 to West Mercer Way (closed up to 30 minutes prior to practice or show)
  • East Mercer Way to westbound I-90 (closed up one hour prior to practice or show)
  • West Mercer Way to westbound I-90 (up to one hour prior to practice or show)

SR 520 open during I-90 closures:

Similar to previous years, during the I-90 closures, the SR 520 floating bridge will still be open to traffic and tolls will be collected according to the rate schedule.

Additionally, the SR 520 drawspan will not open for marine traffic when the I-90 bridge is closed.

However, SR520 will close to vehicle traffic at 12:30 p.m. on Thursday, half an hour after I-90 reopens.

Related: Seafair closure page

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