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.

The closure will last 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.

Once the Medina overpass is gone, crews will shift gears to build new concrete supports for the new Evergreen Point Road lidded overpass, which will be completed during the next 18 months.