Schedule of I-90 closures for Seafair Sunday

The U.S. Navy Blue Angels perform during Seafair 2015. Seafair, the traditional summer Seattle festival, brings hydroplane boats to Lake Washington and aircraft to the skies above for the weekend's Boeing Air Show. Photographed on Sunday, August 2, 2015. less The U.S. Navy Blue Angels perform during Seafair 2015. Seafair, the traditional summer Seattle festival, brings hydroplane boats to Lake Washington and aircraft to the skies above for the weekend's Boeing Air ... more Photo: JOSHUA TRUJILLO, SEATTLEPI.COM Photo: JOSHUA TRUJILLO, SEATTLEPI.COM Image 1 of / 1 Caption Close Schedule of I-90 closures for Seafair Sunday 1 / 1 Back to Gallery

As has become customary, the U.S. Navy Blue Angels' performance will close down the Interstate 90 floating bridge on Sunday for the Seafair Weekend finale.

The closure is mandated by the Federal Aviation Administration, and will start up to one hour ahead of scheduled performances, the state Department of Transportation said in a news release. The idea is to minimize distractions and keep everyone safe and sound during the wild airshows.

Closures will go all the way from the Seattle on-ramp for I-90 from Interstate 5 to Island Crest Way on Mercer Island. It's worth noting that the state Route 520 bridge will be open during the I-90 closures, so that might make a good alternative for drivers who need to get across.

Here are the closures, straight from WSDOT: