U.S. Federal Route 151 is a north-south highway in Southern Grant County. It runs from a Mississippi River crossing, near Dubuque, Iowa to the Grant/Layfayette County Line, near Platteville. U.S. Rt. 151 passes through the following towns in Grant County. Dickeyville Platteville
U.S. Rt. 151 is multi-plexed in Grant County. U.S. Rt. 61, from the Iowa/Wisconsin State Line to Dickeyville.
Branches of U.S. Rt. 151 in Grant County. SB U.S. Rt. 61/151 near the Mississippi River. NB U.S. Rt. 61/151 at the Wisconsin State Line. NB U.S. Rt. 61/151 at the Wisconsin Welcome Sign. NB U.S. Rt. 61/151 at WI St Rt 35. NB U.S. Rt. 61/151; WI St Rt 35 south of Kieler. A junction marker on SB WI St Rt 80/EB WI St Rt 81.