Monmouth-Independence_Highway
Oregon Route 51
Highway in Oregon
Oregon Route 51 is an Oregon state highway running between Monmouth, Oregon and an intersection with Oregon Route 22 west of Salem. OR 51 traverses several highways of the Oregon state highway system: the Monmouth–Independence Highway No. 43 and the Independence Highway No. 193.[2] The route lies completely within Polk County. The Independence Highway previously continued south to US 20.