Project updates
Learn about where and when construction is happening throughout the ST district.

I-405 to westbound I-90 overnight ramp closures and lane reductions on westbound I-90

Publish Date

Work continues on the cast-in-place long span rail bridge over I-90. Crews plan to close all ramps from I-405 to westbound I-90 to advance the 'traveler crane' over I-90. 

When

  • Monday, August 12, night closure, 8 p.m. to 5 a.m. 

Where

  • Right general purpose lane of westbound I-90: 11 p.m. to 5 a.m.
  • Left general purpose lane of westbound I-90: 10 p.m. to 5 a.m.
  • I-405 north to westbound I-90 general purpose ramps: 10 p.m. to 5 a.m.
  • I-405 south to westbound I-90 ramp: 10 p.m. to 5 a.m.
  • I-405 south to westbound I-90 HOV ramp: 8 p.m. to 5 a.m.
  • Richards Rd/ SE 32nd St.to westbound I-90 ramps: 9 p.m. to 5 a.m. 

More

  • I-405 to I-90 detour: from I-405, drivers should follow detour signs to I-90 east. Exit at 150th Ave SE toward Eastgate Way then proceed to the westbound I-90 exit toward Seattle.
  • Sound Transit's contractor is permitted to work expanded hours in the I-90 corridor and adjacent to Bellevue Way Southeast, including 24-hour work in this area.
  • Plan ahead, leave early and allow extra time to reach your destination.
  • Due to inclement weather or unforeseen issues, dates and times are subject to change.
Map of I-405 to westbound I-90 ramp closures and lane reductions on westbound I-90.