U.S. Highway 151 (US 151) is a United States Numbered Highway that runs through the states of Iowa and Wisconsin. The southern terminus for US 151 is at a junction with Interstate 80 (I-80) in Iowa County, Iowa, and its northern terminus is at Manitowoc, Wisconsin. The route, from south to north follows a northeasterly path through the two states. US 151 is an important corridor- connecting Cedar Rapids, Iowa to Fond du Lac, Wisconsin with an expressway (except for a segment about ten miles where it uses arterial roads instead in Madison, Wisconsin). Approximately south of Dubuque, Iowa, US 151 joins with US 61. The two highways share a route from there to Dickeyville, Wisconsin. south of Dubuque, US 61/US 151 joins with US 52 and shares a route with US 52 until it veers south in Key West. In Wisconsin, US 61/US 151 joins with Wisconsin Highway 35 (WIS 35) about north of the Iowa–Wisconsin border. At Dickeyville, US 151 splits off and heads northeast to Platteville. US 61/WIS 35 continues north. US 151 later joins with US 18 near Dodgeville. The two highways share a route all the way to Madison. Route description Iowa US 151 begins at exit 225 along I-80 in rural Iowa County north of Williamsburg. The highway heads to the north and intersects US 6 outside of Homestead, Iowa. US 151 turns east onto US 6 and the two routes run concurrently for about until US 6 splits to the east at Homestead. US 151 continues to the north and crosses the Iowa River on its way to Amana, the main village of the Amana Colonies and the eastern end of Iowa Highway 220 (Iowa 220). The road clips the southeastern corner of Benton County, Iowa at Walford and it turns to the northeast toward Fairfax. When it reaches the US 30 / US 218 freeway in Cedar Rapids, US 151 turns east onto the highway while US 151 Business continues northeast on Williams Boulevard SW. The freeway is dotted with interchanges providing access to southern Cedar Rapids, most importantly Edgewood Road SW, I-380, and C Street SW. Just east of the Cedar River, US 151 exits from US 30, which continues east toward Clinton. The route splits from the other roads and continues toward Dubuque as an expressway. This stretch crosses many major rivers including both the Wapsipinicon and the Maquoketa. The