From Washington State Department of Transportation, March 6 : 

“Demolition crews are gearing up to take down the old Evergreen Point Road overpass above State Route 520 in Medina, which requires closing the highway and floating bridge between Seattle and Bellevue this weekend. During the closure, drivers will have to find another way across or around Lake Washington from 11 p.m. Friday, March 9, until 5 a.m. Monday, March 12. All lanes and ramps will be closed between Montlake Boulevard in Seattle and Interstate 405 in Bellevue. Alternate routes could see traffic delays midday Saturday and Sunday…”

For more information:   Go online for SR 520 closure information, or contact   Jeff Switzer, WSDOT SR 520 Communications, 206-770-3547 (Seattle)