state route mile long state highway lewis counties state washington serving communities begins intersection 2nd street community traveling north turning east past parallel interchange interstate twice west originating highway designated current form shared eastern terminus terminated moved away route description begins continuation street second street intersection community located valley northern traveling north exit highway crosses enters roadway parallels valley northeast turns east cross creek street named 7th street crossing crosses railroad track owned amtrak services coast stations traveling east 7th street intersects leaves city heading northeast paralleling cross busiest segment highway daily average vehicles roadway crosses near confluence interchanges interstate southbound exit route turns north interchange exit diamond interchange western terminus road history established preceded established originally traveled paralleling portland line paralleling route rail line established founder completed rail line removed shortened moved west newer freeway later interstate highway renumbering created ended ended interchange moved south end moved major intersections
Washington State Route 506