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  2. United States Numbered Highway System - Wikipedia

    en.wikipedia.org/wiki/United_States_Numbered...

    The route numbers and locations are coordinated by the American Association of State Highway and Transportation Officials (AASHTO). [4] The only federal involvement in AASHTO is a nonvoting seat for the United States Department of Transportation. Generally, most north-to-south highways are odd-numbered, with the lowest numbers in the east and ...

  3. List of United States Numbered Highways - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    Since the policy on numbering and designating US Highways was updated in 1991, AASHTO has been in the process of eliminating all intrastate U.S. Highways under 300 miles (480 km) in length, "as rapidly as the State Highway Department and the Standing Committee on Highways of the American Association of State Highway and Transportation Officials ...

  4. National Highway System (United States) - Wikipedia

    en.wikipedia.org/wiki/National_Highway_System...

    A map of the Strategic Highway Network, one component of the NHS Map of average freight truck traffic on the NHS in 2015. According to the Federal Highway Administration, the 160,000-mile (260,000 km) National Highway System includes roads important to the United States' economy, defense, and mobility, from one or more of the following road networks (specific routes may be part of more than ...

  5. List of longest state highways in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_state...

    In the United States, each state maintains its own system of state highways. [a] This is a list of the longest state highways in each state.As of 2007, the longest state highway in the nation is Montana Highway 200, which is 706.624 miles (1,137.201 km) long.

  6. Wikipedia:Online maps of the United States - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Online_maps_of...

    Researching old maps and cartographic records at the National Archives; NASA World Wind overlays satellite, aerial and topographic maps of the United States; Google Earth: a visual 3D interactive atlas. Atlas World: a directory of atlases currently in print. List of official state road maps of the United States; Scanned official transportation ...

  7. Wikipedia : WikiProject U.S. Roads/Resources/Map database

    en.wikipedia.org/.../Resources/Map_database

    NCDOT: Historical County Maps – County transportation maps from 1930 to 2010, hosted by the North Carolina Department of Transportation. North Carolina Maps: State Highway Maps – State transportation maps from 1916 to 2000, hosted at the University of North Carolina Chapel Hill Libraries.

  8. List of U.S. Highways in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._Highways_in...

    MDOT is the agency responsible for the day-to-day maintenance and operations of the State Trunkline Highway System, which includes the U.S. Highways in Michigan.The numbering for these highways is coordinated through AASHTO, [6] an organization composed of the various state departments of transportation in the United States. [7]

  9. Interstate 10 - Wikipedia

    en.wikipedia.org/wiki/Interstate_10

    Gateway East and Gateway West are notable, in particular, for the Texas Department of Transportation (TxDOT)'s liberal usage of the Texas U-turn at most underpasses of I-10 on this stretch. I-10 is the western terminus for I-20 , and the two highways intersect in Reeves County , about 41 miles (66 km) southwest of Pecos, at milemarker 186.