They are going to be doing repairs on I-90 and they will be shutting down portions of the bridge while they do it. They'll alternate between the express lanes, but it's still going to be a mess!
I-90 express lanes completely closed: May 4 - 23
I-90 westbound mainline completely closed: July 5 - 28
http://www.wsdot.wa.gov/Projects/I90/HomerHadleyBridgeRepair/default.htm