Project Title & Location

SR 167 Valley Freeway Mobility and Congestion Relief Projects (also known as SR 167/Corridor Study)

Project Description
The overall project will widen SR 167 between S. 180th Street and SR 18. The project will add one general purpose lane in each direction from S. 180th St. to the the vicinity of King/Pierce County line. The project is currently funded to complete the environmental review.

Contractor/Consultant
Consultant to be determined when funding becomes available

Recent Progress

Considered three scenarios:  One lane in each direction with minimal interchange improvements; bottleneck improvement projects; and HOV lane completion. Given the Regional Transportation Investment District (RTID) budget of $500M we focused on bottleneck improvement projects between S 180th in Renton to S 84th in Kent, SR 516 to S 277th and completion of the HOV system on SR 167 in King County.

Started development of Watershed Characterization to identify potential wetland mitigation sites.

WSDOT staff identified potential increase of wetland buffer requirements proposed by DOE, the Army Corp of Engineers and growth management regulations.  WSDOT staff has been working with local jurisdictions to update wetland information.  We uncovered that King County wetland data is nearly 20 years old.

Design Construction Impacts
Not Applicable

Environmental Impacts / Compliance
Potential significant impacts to wetlands

Impacts to Traffic
Not Available

Planned vs. Actual Expenditures
(Total Project Cost)

Nickel funds included in above costs

2005 Transportation Partnership Account