 State Route 231 ( SR 231 ) is a 74 @.@ 97 @-@ mile ( 120 @.@ 65 km ) long state highway in the U.S. state of Washington serving communities in Lincoln and Stevens counties . The highway , located entirely west of Spokane in the Inland Empire , serves Sprague , <unk> , Reardan , Springdale and Chewelah . The route extends from SR 23 north of Sprague to a concurrency with U.S. Route 2 ( US 2 ) near Reardan and an intersection with US 395 south of Chewelah . 
