SSH 5M was transferred to SSH 2M in 1959. This route began at Jct PSH 2 Auburn-North Bend Branch (now SR 18) on the west side of Auburn and headed northerly via the west side of Kent and Tukwila to Jct PSH 1 (US 99). When the state highway system was renumbered, SSH 2A became SR 181.
Interstate Routes
US Routes
State Routes
Primary State Hwys
Secondary State Hwys
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