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In the U.S. state of Nebraska, the Nebraska Department of Transportation (NDOT) maintains a system of state highways.Every significant section of roadway maintained by the state is assigned a number, officially State Highway No. X [2] but also commonly referred to as Nebraska Highway X, as well as N-X.
The system comprises 9,942 miles (16,000 km) of state highways in all 93 counties. Highways within the system range in scale and quality from 10-lane urban freeways, such as I-80 around Omaha, to standard two-lane rural undivided highways as well as 39 miles (63 km) of state highways that remain unpaved such as N-67 north of Dunbar.
Highways are generally marked in the format of S-x-Y or L-x-Y, where S or L indicates whether it is a spur or a link, x is the county the highway is in, with ranking in alphabetical order (1 is Adams County, while 93 is York County), and Y is the letter which "numbers" the highway. Recreation Roads are typically unsigned.
U.S. Highway 20 (US-20) is a part of the United States Numbered Highway System that runs for 3,365 miles (5,415 km) from Newport, Oregon, to Boston, Massachusetts.Within the state of Nebraska, it is a state highway that begins on the Wyoming–Nebraska state line west of Harrison near the Niobrara River and runs to the Nebraska–Iowa state line in South Sioux City.
It is the only Interstate Highway to travel from one end of Nebraska to another, as the state has no major north–south Interstate route. Except for a three-mile-long (4.8 km) portion of I-76 near the Colorado state line, I-80 is the only primary (two-digit) Interstate Highway in Nebraska.
The Interstate Highways in Nebraska are the segments of the national Interstate Highway System that are owned and maintained by the U.S. state of Nebraska, totaling 482 miles (776 km). [2] The longest of these, by far, is Interstate 80 (I-80) at a length just over 455 miles (732 km). [ 1 ]
Within the State of Nebraska it is a state highway that enters Nebraska on the Kansas state line about 9 miles (14 km) south of Dawson and travels north across the extreme eastern portion of the state, to the Nebraska–Iowa border in South Sioux City where it crosses the Missouri River along a concurrency with Interstate 129. The northern 210 ...
Under the 1926 highway numbering plan, two-digit U.S. Highways are numbered in a grid; east–west highways have even numbers while north–south routes have odd numbers. The lowest numbers are in the east and north. The primary east–west highways in Nebraska are numbered US-6, US-20, US-26, US-30, and US-34.