SR 167 / SR 512 to ellingson RD vicinity - SB congestion management

Grant Award Summary

The Federal Highway Administration (FHWA) awarded $752,034 to the Washington State Department of Transportation on May 12, 2025, under the Highway Planning and Construction program (CFDA 20.205). This formula grant funds the SR 167/SR 512 to Ellingson Road vicinity project, which involves widening the existing southbound roadway to extend the express toll lane (ETL) system from the Ellingson Road interchange in King County to the SR 410/SR 512 interchange in Pierce County.

The project deliverables include installation of intelligent transportation systems infrastructure—specifically lane control signage, toll collection equipment, closed-circuit television (CCTV) cameras, data collection stations and inductive loops, ramp meters, and variable message signs—along with roadway illumination. Additionally, the project includes environmental remediation activities involving the removal of existing fish passage barriers and their replacement with fish-passable structures, reflecting compliance with environmental requirements and fish passage restoration objectives typical of FHWA-funded highway improvement projects.

Project description

Widen the existing southbound roadway to add an express toll lane (ETL) to extend the ETL system - from near the ellingson RD. Interchange in king CO. To the SR 410/SR 512 interchange in pierce CO. Work includes installing lane control signing, toll equipment, closed caption T.V. (CCTV) cameras, data stations and loops, ramp meters, variable message signs, and illumination. Work also includes removing existing fish passage barriers and replacing them with fish passable structures.