State Route 167 (Washington)

State Route 167 (Washington) is a 33.8-mile state highway in Washington connecting Puyallup to Renton and providing a freeway link toward Bellevue via I-405. The route serves suburban and industrial corridors through Tacoma, Kent, and Federal Way, and carries commuter, freight, and port traffic tied to the Port of Seattle, Port of Tacoma, and regional freight networks. SR 167 is known for its "Valley Freeway" segment and a combination of controlled-access freeway and surface arterial alignments.

Route description

SR 167 begins in Puyallup near the junction with SR 161 and proceeds north through the Puyallup River valley into Tacoma near Joint Base Lewis–McChord. The highway crosses industrial corridors adjacent to the BNSF Railway mainline and interfaces with Interstate 5 near central Tacoma Dome and Tacoma Dome event facilities. Continuing north, SR 167 enters Federal Way where it interchanges with SR 99 and parallels commuter rails used by Sound Transit and Amtrak Cascades. Through Kent the freeway serves warehouses, distribution centers tied to Amazon and UPS freight operations, and connects with SR 516 and SR 509. Northbound lanes traverse the Green River valley adjacent to wetlands and industrial parks before reaching Renton, where SR 167 terminates at an interchange with I-405 near the Boeing Renton Factory and Renton Municipal Airport.

History

Early road alignments through the Puyallup River and Green River valleys trace to territorial era wagon roads and Puget Sound maritime trade corridors serving Tacoma and Seattle. In the 1930s and 1940s numbered state highways were formalized, later reorganized in the 1964 statewide renumbering that established modern SR designations. The Valley Freeway portions were constructed in phases during the 1960s, 1970s, and 1980s, influenced by regional planning from the Washington State Department of Transportation and metropolitan transit agencies such as King County Metro. Freight demand from the Port of Tacoma and expansion of aerospace manufacturing at Boeing accelerated upgrades and interchange reconstructions. Major improvements included grade separations, the construction of high-occupancy vehicle lanes influenced by Federal Highway Administration funding programs, and pavement rehabilitation tied to Federal Transit Administration and state grants. Community and environmental reviews, involving agencies like the Environmental Protection Agency and local jurisdictions in Pierce County and King County, shaped alignments to mitigate impacts on wetlands and historic neighborhoods.

Future and improvements

Planned projects on SR 167 encompass capacity expansion, interchange modernization, and multimodal integration coordinated by the Washington State Department of Transportation and regional partners including Sound Transit and county governments. Proposed actions target freight bottlenecks serving the Northwest Seaport Alliance and aim to improve connections to Interstate 5, I-405, and the National Highway System. Upgrades consider deployment of intelligent transportation systems promoted by the Federal Highway Administration, enhanced HOV/HOT lane operations, and potential bus rapid transit corridors linking to Sound Transit Link Light Rail extensions. Environmental permitting with the United States Army Corps of Engineers and mitigation tied to the Endangered Species Act are part of project scoping, while local economic development agencies and chambers of commerce advocate for improvements to support logistics hubs for companies like Costco and FedEx.

Major intersections

- Southern terminus: junction with SR 161 in Puyallup - Interchange with Interstate 5 near Tacoma - Interchange with SR 99 in Federal Way - Junction with SR 18 near Auburn (connector access) - Interchange with SR 516 in Kent - Junction with SR 509 access ramps serving industrial areas - Northern terminus: interchange with I-405 in Renton

Traffic and usage statistics

SR 167 carries a mix of commuter and heavy truck volumes, with annual average daily traffic counts highest on sections through Kent and Federal Way reflecting regional distribution centers and commuter flows to Seattle and Bellevue. Traffic monitoring by the Washington State Department of Transportation and regional Metropolitan Planning Organizations reports peak-hour congestion on northbound and southbound approaches to major interchanges and seasonal variations near event venues at Tacoma Dome. Freight tonnage figures link to activity at the Port of Tacoma and logistics operations servicing national supply chains including Walmart and Target. Safety analyses reviewed by state traffic engineers have prompted targeted improvements such as ramp reconfigurations and median barrier installations.

Category:State highways in Washington (state)