U.S. Highway 20 (US 20) in Iowa is a major east–west artery which runs across the state, separating the northern third of Iowa from the southern two-thirds...

U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States Numbered Highway that stretches from the Pacific Northwest east to New England...

U.S. Route 275 (US 275) is a north–south United States highway that is a branch of US 75. It originally terminated at US 75 in Council Bluffs, Iowa. The...

10 years. From its southern terminus in Davenport, Iowa, U.S. Highway 55 initially followed the route of present-day U.S. Highway 52 through Hampton, Minnesota...

neither begins nor ends at US 18, but overlaps US 18 for eight miles (13 km) near Charles City, Iowa. US 218 begins at U.S. 136 in downtown Keokuk and ends...

Minnesota. Parts of its modern route in Iowa and historic route in Minnesota follow the old Jefferson Highway. U.S. 65 begins in Clayton, Louisiana and proceeds...

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...

Several special routes of U.S. Route 20 (US 20) exist. In order from west to east, they are as follows. U.S. Route 20 Business (US 20 Bus.) in Toledo, Oregon...

longest primary highway in the state and is maintained by the Iowa Department of Transportation (Iowa DOT). The route in Iowa begins at the Missouri River...

U.S. Highway 6 (US 6) is an east–west United States Numbered Highway which runs 322 miles (518 km) across the U.S. state of Iowa. The route is signed...

U.S. Route 71 or U.S. Highway 71 (US 71) is a major north–south United States highway that extends for over 1500 miles (2500 km) in the central United...

U.S. Highway 52 (US 52) is a 166-mile-long (267 km) United States Numbered Highway in northeast Iowa. The route begins at the Dale Gardner Veterans Memorial...

U.S. Highway 34 (US 34) is a United States Highway that runs across the southern third of Iowa. It begins on a bridge over the Missouri River west of Glenwood...

U.S. Route 136 is an east-west U.S. highway that is a spur route of U.S. Route 36. It runs from Edison, Nebraska, at U.S. Route 6 and U.S. Route 34 to...

U.S. Highway 61 (US 61) is a United States Highway that serves eastern Iowa. It enters the state from Missouri near Keokuk with US 136. North of Keokuk...

U.S. Route 165 is a north–south United States highway spur of U.S. Highway 65. It currently runs for 412 miles (663 km) from U.S. Route 90 in Iowa, Louisiana...

U.S. Highway 18 (US 18) is the northernmost east–west United States Numbered Highway in the state of Iowa. As with all state highways in Iowa, it is maintained...

U.S. Highway 59 (US 59) is a United States Highway that transverses the western third of Iowa. It begins at the Missouri state line southwest of Northboro...

U.S. Route 59 (US 59) is a north–south United States highway (though it was signed east–west in parts of Texas). A latecomer to the U.S. numbered route...

U.S. Route 20 (US 20) in the U.S. state of Illinois is a major arterial highway that runs from the Iowa state line at East Dubuque at the northwestern...

special routes of U.S. Route 169 exist, one each in Oklahoma, Kansas, Missouri, and Iowa, and two in Minnesota. U.S. Highway 169 Alternate (US 169 Alt...

U.S. Route 61 or U.S. Highway 61 (U.S. 61) is a major United States highway that extends 1,400 miles (2,300 km) between New Orleans, Louisiana and the...

U.S. Highway 63 (US 63) is a United States Highway that runs through the eastern third of Iowa. It begins at the Missouri state line southwest of Bloomfield...

U.S. Route 63 (US 63) is a 1,286-mile (2,070 km), north–south United States Highway primarily in the Midwestern and Southern United States. The southern...

U.S. Route 69 (US 69) is a major north–south United States highway in the central United States. When it was first created, it was only 150 miles (241 km)...

U.S. Highway 67 (US 67) is a U.S. Highway in extreme eastern Iowa. The route begins in Davenport at the Rock Island Centennial Bridge where it crosses...

U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route of the United States Numbered Highway System, with the highway traveling across the...

U.S. Highway 77 (US 77) is the shortest U.S. Highway in the state of Iowa. It crosses into Iowa over the Missouri River from South Sioux City, Nebraska...

U.S. Route 52 in Sabula, Iowa. US 67 crosses the Mississippi River twice along its routing. The first crossing is at West Alton, Missouri, where US 67...

of US 20, making it the second-longest U.S. Route in the country. However, since US 20 has a discontinuity through Yellowstone National Park, US 6 remains...