Local Information

Plan ahead for full closure of southbound SR 167 in Renton the weekend of Sept. 22-23

Tuesday, September 18, 2018 - 10:57

Craig Smiley, communications, 425-456-8624
Sharif Shaklawun, project engineer, 253-661-3358

Work to replace culvert will require ramp closures at I-405/SR 167 interchange

RENTON – Travelers in King County should prepare for a full weekend closure of southbound State Route 167 starting the evening of Friday, Sept. 21, to replace a culvert that blocks fish passage. People should also plan for ramp closures at the Interstate 405/SR 167 interchange.

This closure runs through early Monday, Sept. 24 and will cause significant delays throughout the weekend.  The Washington State Department of Transportation is encouraging travelers to plan ahead and prepare for detour routes.

Full closure details
From 8:30 p.m. Friday, Sept. 21 to 5 a.m. Monday, Sept. 24, crews will install a new culvert under SR 167 to improve fish passage through the area. Crews will fully close:

  • All lanes of southbound SR 167 between the I-405 interchange and South 180th Street.
  • The northbound I-405 ramp to southbound SR 167.
  • The southbound I-405 ramp to southbound SR 167.
  • The southbound SR 167 ramp to northbound I-405.

All closures require dry weather and could be rescheduled due to rain.

Detour routes
Detour routes have been established where possible, but travelers should expect heavier-than-normal traffic along those routes during the closures.

“We would typically see over 141,000 vehicles drive through this area on an average weekend, so we’re really urging travelers to plan ahead or alter trips if possible,” said I-405 Program Administrator Kim Henry.

To help avoid congestion and keep traffic flowing travelers can:

  • Allow extra time for travel.
  • Consider taking public transportation or carpooling.
  • Take alternate routes.
  • If possible, reschedule discretionary trips.
  • Travel early in the morning or late in the evenings when traffic volumes tend to be lower.

This work will be the final stage of the fish culvert work, which is divided into three stages of building and installing the new culvert. It is part of the I-405/SR 167 Interchange Direct Connector Project, which will build a flyover ramp connecting the SR 167 HOT lanes to the I-405 HOV lanes. This ramp is designed to improve traffic flow and safety at this critical interchange.

Know before you go
Travelers can get real-time traffic conditions before heading out the door with the WSDOT traffic app and by checking the WSDOT Traffic Twitter feed.

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