Washington State Route 167 is a state highway located in the western part of Washington. It runs approximately 20 miles, connecting the cities of Auburn and Renton. The route primarily serves as a vital corridor for commuters traveling between the Seattle metropolitan area and the surrounding regions. The highway features several interchanges and connects with other major routes, including Interstate 5 and Interstate 405. It is designed to facilitate efficient traffic flow and improve access to local businesses and residential areas. Route 167 plays a significant role in the regional transportation network.