The Washington State Department of Transportation (WSDOT) has kicked off the construction phase on its Puget Sound Gateway Program, which serves to close two of the state’s major transportation gaps — State Route 167 in Pierce County and SR 509 in King County.

SR 167 in Pierce County

WSDOT will build four miles of new highway to complete the missing link between SR 167 in Puyallup and I-5 in Fife. The SR 167 project also includes a new a two-mile connection from I-5 to the Port of Tacoma.

SR 509 in King County

Extending SR 509 will increase connectivity between Seattle and south King County, and also will provide a north-south alternative to I-5. In addition, the SR 509 extension will create a new southern access point to Seattle-Tacoma International Airport and serve as an alternative to I-5, SR 99, and local streets.

The Gateway Program construction is divided into two stages; stage 1 projects will be constructed between 2020 and 2026 and stage 2 projects will be constructed between 2024 and 2028.