The Seattle Department of Transportation's weekly transportation construction update highlights the projects and events that may impact travel through the Seattle area. View this week's update.

This week's highlights:

King County currently remains in Phase 2 of Governor Jay Inslee's 'Safe Start' reopening plan.  Accordingly, all special events, sporting events, and concerts have been canceled, postponed, or rescheduled until further notice, unless noted below.

  • June 8 - TBD: I-5 Express Lanes close at 8 p.m. nightly until further notice.
  • July 17 - 20: S Michigan St. closed between E Marginal Way S and 4th Ave S for utility work and restoration.  Fri 9 p.m. - Mon 5 a.m.
  • July 17: Full northbound closure of the SR99 Tunnel for monthly maintenance.  Fri 10 p.m. - Sat 8 a.m.
  • July 19 - 22: Lane reductions on the NB 1st Ave S / SR99 Duwamish River Bridge for grid deck repairs.  Nightly 8 p.m. - 5 a.m.
  • July 23: 1st Ave S Bridge / SR99 Duwamish River Bridge closed northbound for grid deck repairs.  8 p.m. - 5 a.m.
  • July 24 - 27: Montlake Blvd E closed northbound from E Roanoke St. to E Hamlin St. and a lane reduction southbound.  Fri 10 p.m. - Mon 6 a.m.
  • July 26 - 30: 1st Ave S Bridge / SR99 Duwamish River Bridge closed northbound for grid deck repairs.  Nightly 8 p.m. - 5 a.m.
  • August 1: Full closure of the Montlake Bridge for grid deck repairs.  6 a.m. - 6 p.m.
  • August 2 - 6: 1st Ave S Bridge / SR99 Duwamish River Bridge closed northbound for grid deck repairs.  Nightly 8 p.m. - 5 a.m.
  • August 14: Full southbound closure of the SR99 Tunnel for monthly maintenance.  Fri 10 p.m. - Sat 8 a.m.

Please note: The information is subject to change and additional construction or events may be planned in the Seattle area.

If you have questions, contact construction.coordination@seattle.gov or call 206-684-ROAD.