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Park access road Iowa 274: 1.99 [12] 3.20 Ambrose A. Call State Park: US 169 near Algona: 1934: 1986 Park access road; formerly Iowa 163 Iowa 276: 4.711: 7.582 Spirit Lake city limits: Minnesota state line 1934: 2003 Park access road Iowa 277: 6.24: 10.04 Numa: Iowa 5 near Centerville: 1935: 1980 Spur route
The Iowa Department of Transportation is responsible for the day-to-day maintenance of the primary highway system, which consists of Interstate Highways, United States Highways, and Iowa state highways. Currently, the longest primary highway is U.S. Highway 30 at 332 miles (534 km). The shortest highway is Interstate 129 at 0.27 miles (430 m).
Interstate. US. State. Secondary. Scenic. ← Iowa 78. → Iowa 81. Interstate 80 ( I-80) is a transcontinental Interstate Highway in the United States, stretching from San Francisco, California, to Teaneck, New Jersey. In Iowa, the highway travels west to east through the center of the state.
Iowa Highway 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 (520 km) long. Iowa 3 begins at the South Dakota state line where it continues as South Dakota Highway 50 and ends at the Northwest Arterial at the Dubuque city limits.
Iowa Highway 1. Iowa Highway 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 through rich farmland and small communities. Iowa 1 provides an important link to Iowa City and the University of Iowa as it passes through campus.
Iowa Highway 2. Iowa Highway 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 point along its route is Iowa 2 more than 15 miles (24 km) from the Missouri state line, except for a small section near its eastern terminus. Iowa 2 stretches across the entire ...
Primary Interstates. I-29 as viewed from the Sergeant Floyd Monument. I-35 approaching exit 182. The Interstate 74 Bridge carrying I-74 across the Mississippi River. I-80 in western Iowa near Walnut. Traffic congestion on I‑35 / I‑80 during the Iowa flood of 2008.
The commission was also given supervisory control over the public road system, although each county was still in charge of managing their road system. [19] In 1974, the 65th Iowa General Assembly reorganized the highway commission into a larger Department of Transportation with other modes of transportation. The larger department was an effort ...