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State Route 163 (SR 163) is a state highway in the U.S. state of Washington. The highway serves the city of Tacoma and the community of Ruston in Pierce County before traveling via a ferry route to the community of Tahlequah on Vashon Island in King County. SR 163 begins at an interchange with SR 16 in Tacoma and travels north as Pearl Street through Ruston to Point Defiance, where the designation continues onto the ferry to Tahlequah. SR 163 was established during the 1964 highway renumbering, extending from Sumner to Auburn. The highway was previously a part of the Pacific Highway during the early 20th century, but was designated as a branch of State Road 5 and Primary State Highway 5 (PSH 5) until 1964. SR 163 became SR 167 during the late 1960s and was moved to Pearl Street in 1991, with the ferry route being added in 1994. ==Route description== SR 163 begins as Pearl Street at a partial cloverleaf interchange with the SR 16 freeway in Tacoma north of Tacoma Community College. Pearl Street travels north, serving Woodrow Wilson High School and Truman Middle School, before leaving Tacoma and entering Ruston and serving Point Defiance Elementary School. The highway re-enters Tacoma at Point Defiance Park and passes the Science and Math Institute before traveling onto the Point Defiance–Tahlequah Ferry. The ferry, operated by Washington State Ferries (WSF), is on a route and is served by the Kwa-di Tabil class traveling at a speed of for a 15-minute crossing. The ferries depart from Port Defiance and head north across the Dalco Passage to the community of Tahlequah on Vashon Island. WSF operates the ferry every day with 19 crossings, as a $5 toll for adult passengers is charged with prepaid Wave2Go cards being accepted. Every year, the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that between 1,000 and 26,000 vehicles per day used the highway, mostly at the SR 16 interchange in Tacoma. The Point Defiance–Tahlequah ferry carried 650,000 passengers and 383,000 vehicles in 2012, according to WSF statistics. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Washington State Route 163」の詳細全文を読む スポンサード リンク
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