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SR 18: Military Rd to Auburn Black Diamond Rd Project Map

The End Result
Crews will repave the on-ramp from the West Valley Highway to eastbound State Route 18, the on-and-off-ramps at C Street SW, the eastbound SR 18 bridge approaches for the bridge between SR 167 and C Street SW, and the on-and-off ramps at the Auburn-Black Diamond Road interchange.

Project Benefits
Safety: In addition to paving, crews will make several safety improvements, including upgrading guardrail and signing.

Traffic Impact

  • Single lane or shoulder closures of SR 18 at night
  • Ramps will be closed for several nights
  • Total closure of eastbound SR 18 for two nights
  • Detour routes will be provided for all closures

What is the project timeline?

  • April 2011: Project will be advertised to contractors
  • May 2011: Project is awarded to contractor
  • July 2011: Construction begins

How can I get more information?

Hien Trinh
WSDOT Project Engineer

WSDOT Communications