Fire suppression system testing to close lanes and ramps on I-5 in Seattle

Washington State Department of Transportation

 

Drivers should prepare for a few nights of multi-lane and ramp closures on Interstate 5 in downtown Seattle beginning this Thursday night, July 16. Flammable cargo will be prohibited during the closures.

Washington State Department of Transportation maintenance crews will be conducting routine maintenance and testing of the fire suppression system under the Washington State Convention Center.

Lane closures:

  • Thursday, July 16, to the morning of Friday, July 17 – Two left lanes of northbound I-5 under the convention center will be closed from 11:59 p.m. to 3 a.m.
  • Saturday, July 18 – Three right lanes of northbound I-5 through the convention center will be closed from 12:30 to 3:30 a.m.
  • Friday, July 24, to the morning of Saturday, July 25 – All lanes of southbound I-5 will be closed at the Stewart Street/Denny Way off-ramp from 11:59 p.m. to 5 a.m. The I-5 express lanes will be open southbound from 11:30 p.m. to 5 a.m. Oversized loads more than 14 feet 7 inches should use Interstate 405.

Ramp closures:

  • Thursday, July 16, to the morning of Friday, July 17 – The University Street on-ramp to northbound I-5 will be closed from 11:59 p.m. to 3 a.m.
  • Saturday, July 18 – The Cherry Street on-ramp to northbound I-5 will be closed from 12:30 to 3:30 a.m.
  • Friday, July 24, to the morning of Saturday, July 25 – The Mercer Street and Yale Avenue on-ramps to southbound I-5 will be closed from 11:59 p.m. to 5 a.m.

In the Seattle area, drivers can get real-time traffic information on their phone with the WSDOT traffic app, by tracking the WSDOT traffic Twitter feed, and get advanced information from the What’s Happening Now page.