 At the intersection of SR @-@ 23 ( <unk> West ) and 13400 North in the center of Cornish , SR @-@ 61 departs east on 13400 North due east , crossing over a single track belonging to the Union Pacific Railroad ( UP ) . <unk> Cornish , the highway crosses the Bear River and continues east through rural Cache County . Just shy of the western city limits of Lewiston , the highway intersects SR @-@ 200 ( 800 West ) , a connector road to Preston , Idaho . From the western terminus to SR @-@ 200 , the shoulder is up to four feet ( 1 @.@ 2 m ) wide , suitable for <unk> , however the remainder of the route has much narrower shoulders , between less than or equal to one and nine @-@ tenths feet ( 0 @.@ 58 m ) wide . 
