Iowa Highway 12 (Iowa 12) is a 46.212-mile-long (74.371 km) state highway that runs from north to south in northwestern Iowa. The highway begins in eastern Sioux City at U.S. Highway 20 (US 20) and US 75. For the first seven and a half miles (12.1 km) of the route, Iowa 12 is an unsigned highway. The first five miles (8.0 km) are signed only as U.S. Highway 20 Business; the other two and a half miles (4.0 km) are overlapped by Interstate 29 (I-29). From here, the highway lies just east of the Big Sioux River, which separates Iowa from South Dakota. The northern end of Iowa 12 is in Hawarden at an intersection with Iowa 10.
^2014 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2014. Retrieved July 17, 2015.
IowaHighway12 (Iowa12) is a 46.212-mile-long (74.371 km) state highway that runs from north to south in northwestern Iowa. The highway begins in eastern...
State highways in the U.S. state of Iowa are owned and maintained by the Iowa Department of Transportation. 2012 Volume of Traffic on the Primary Road...
the Iowa Department of Transportation and individual county boards of supervisors led to a mass transfer of jurisdiction of several state highways in Iowa...
On July 1, 2003, the Iowa Department of Transportation transferred control of more than 700 miles (1,100 km) of highway to county and local governments...
IowaHighway 10 (Iowa 10) is a state highway that runs 104+1⁄2 miles (168.2 km) across the state of Iowa. It begins where South Dakota Highway 46 crosses...
IowaHighway 1 (Iowa 1) is a state highway in the U.S. state of Iowa that extends from Keosauqua to Anamosa. It travels nearly 120 miles (190 km), mainly...
IowaHighway 3 (Iowa 3) is a state highway that runs from east to west across the state of Iowa. It is the longest state highway in Iowa, at 323 miles...
IowaHighway 5 is a highway in southern Iowa. It is a north–south highway with a length of 105 miles (169 km). It is the northernmost segment of a three-state...
IowaHighway 25 (Iowa 25) is a north–south highway in the southwest and west-central portion of the state. It begins at Iowa 2 seven miles (11 km) south...
IowaHighway 70 (Iowa 70) is a state highway spanning 24 miles (39 km) from north to south in eastern Iowa. It begins at IowaHighway 92 in Columbus Junction...
IowaHighway 2 (Iowa 2) is a 251-mile-long (404 km) state highway which runs across the southernmost tier of counties in the U.S. state of Iowa. At no...
IowaHighway 28 is a 21.73-mile-long (34.97 km) state highway located in south central Iowa. The route begins at IowaHighway 92 at Martensdale and ends...
IowaHighway 148 (Iowa 148) is a highway which runs in a north–south direction in southwestern Iowa. It has a length of 67 miles (108 km). The southern...
primary highway system makes up over 9,000 miles (14,000 km), approximately 8 percent of the U.S. state of Iowa's public road system. The Iowa Department...
IowaHighway 60 (Iowa 60) is a north–south state highway in northwest Iowa. The highway runs at a southwest-to-northeast angle. The southern end of Iowa...
transcontinental Interstate Highway in the United States, stretching from San Francisco, California, to Teaneck, New Jersey. In Iowa, the highway travels west to...
Global Information
US 20 / US 75 at Sioux City
Iowa 10 in Hawarden
