Local Information

Six-day closure of East Lake Sammamish Parkway in Issaquah begins June 13

Tuesday, June 6, 2017 - 13:29

Marqise Allen, communications, 206-440-4699
Dave Lindberg, project engineer, 425-225-8725

Drivers must detour around closure; I-90 ramps to Front Street remain open

ISSAQUAH – Drivers traveling through Issaquah will need to adjust their routes for a nearly a week starting Tuesday, June 13. Crews will close a section of East Lake Sammamish Parkway just north of the Interstate 90 on- and off-ramps to Front Street for six days.

The closure will allow Washington State Department of Transportation contractor Scarsella Bros. Inc. to install a large box culvert as part of the realignment of North Fork Issaquah Creek to improve stream flows for migratory fish. The creek currently crosses below the Front Street on- and off-ramps from I-90 twice but will be rerouted to flow underneath East Lake Sammamish Parkway.

“The stream flows through the existing culverts too fast for some younger and older fish,” said Dave Lindberg, WSDOT project engineer. “The new culvert is wider and much larger, making it easier for salmon and trout to swim upstream.”

Closure details

  • Crews will close East Lake Sammamish Parkway to both directions of traffic north of the I-90 on- and off-ramps to Front Street from 8:30 p.m. Tuesday, June 13, until 5 a.m. Monday, June 19.
  • Drivers will still have access to all of the I-90 on- and off-ramps to Front Street throughout the closure.
  • Crews will set up signed detour routes in both directions. 

This $7.6 million project helps the state comply with the 2013 US District Court injunction requiring WSDOT to replace all culverts under state roads that pose a barrier to fish passage. The state is required to fix or replace 475 culverts across western Washington by 2030.

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