 SR 162 was codified as SSH 5E during the creation of the primary and secondary state highways in 1937 , beginning at Primary State Highway 5 ( PSH 5 ) and U.S. Route 410 in Puyallup , traveling through Orting and South Prairie to end at an intersection with a branch of PSH 5 southwest of Buckley . SSH 5E had a branch that traveled south from Orting to Electron that was removed from the state highway system in 1955 . The highway traveled across the Puyallup River into Orting on the McMillin Bridge , which opened in 1934 as a concrete half @-@ through truss bridge to save the Department of Highways a total of $ 826 . SR 165 was established during the 1964 highway renumbering and was codified in 1970 as the replacement to SSH 5E . The western terminus , now at SR 410 , was moved east to an interchange in Sumner after the completion of the Sumner Freeway in 1972 . The McMillin Bridge was added to the National Register of Historic Places in 1982 as an example of a half @-@ through truss bridge built with concrete instead of steel . The route of the highway has not seen a major revision since 1972 ; however , WSDOT repaved the roadway and added guardrails between Orting and Buckley in 2008 . The deteriorating McMillin Bridge is being replaced by WSDOT with a newer , wider span over the Puyallup River scheduled to begin construction in 2014 . 
