state route state highway lewis pierce counties located state washington mile long roadway begins continues north intersect state highways ends interchange interstate road names second street rural areas pacific avenue 38th street near end highway short freeway proposed extended south parallel existing railroad owned serves median short freeway earliest road use current route appeared map area state highway system added system state road state road branches state road later branches highway renumbering branches auxiliary route bypasses established construction started connect fort lewis air force base route description state route begins intersection major east west highway traveling north second street paralleling route street intersects main avenue continues west city leaving highway passes heavily forested canyon near parallel river highway leaves enters roadway intersects goes east mount national park following line branches travels west plains passing plain suburban areas highway enters near fort lewis boundary intersects continues southwest pacific avenue enters shortly roadway partial cloverleaf interchange uses street south ramps entering pacific avenue turns east 38th street partial cloverleaf interchange short freeway proposed route roadway freeway busiest segment highway estimated daily average motorists median freeway route northern terminus interchange interstate ends interchange located near dome continues north parallel railroad single point urban interchange history map area showed roadway extending north later numbered state road added state highway system ran north created extended pacific_ocean south turned east highways replaced branches state road traveled state road creation primary state highways branch remained branch shortened chicago milwaukee started parallel route highway renumbering branches chicago milwaukee transferred railroad parallel highway new auxiliary route established provide bypass provide direct connections interstate air force base july groundbreaking ceremony start construction predicted finished segment highway high accident rate added safety improvements roadway currently developing route development plan improve roadway project divided phases phase completed focused second phase focused focus major intersections
Washington State Route 7