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Number Length (mi) [5] [b] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes US 1: 2,369: 3,813 Fleming and Whitehead streets in Key West, FL: Route 161 at Canadian border in Fort Kent, ME: 1926: current Follows the East Coast of the United States, longest north-south US Highway US 2: 2,112: 3,399
Unfinished in North Carolina; North Carolina only; planned in one more: Virginia Associated route: I-587 Shortest Interstate highway in contiguous United States I-87: 333.49: 536.70 I-278 in New York City: A-15 at Canadian border in Champlain, New York: 1957: current New York only Associated routes: I-287, I-587, I-787: I-88: 140.60: 226.27
In 1918, Wisconsin became the first state to number its highways in the field followed by Michigan the following year. [1] In 1926 the American Association of State Highway Officials (AASHO) established and numbered interstate routes (United States Numbered Highways), selecting the best roads in each state that could be connected to provide a national network of federal highways.
Secretary Howard M. Gore appointed the Joint Board on Interstate Highways, as recommended by AASHO, on March 2, 1925. The Board was composed of 21 state highway officials and three federal Bureau of Public Roads officials. At the first meeting, on April 20 and 21, the group chose the name "U.S. Highway" as the designation for the routes.
Intersection of CR-442 and CR-1057 in Douglas County, Kansas, between Lawrence and Eudora. A county highway (also county road or county route; usually abbreviated CH or CR) is a road in the United States and in the Canadian province of Ontario that is designated and/or maintained by the county highway department.
The Territory of American Samoa has 14 counties; however, these counties are not counted by the U.S. Census Bureau (they are treated as minor civil divisions). [2] The U.S. Census Bureau counts the 3 districts and 2 atolls of American Samoa as county-equivalents. [1] [2] Eastern District, American Samoa; Manu'a District, American Samoa
A map of the United States' Interstate Highways as of 1 October 1970. Numbered highways in the United States; List of Interstate Highways; List of United States Numbered Highways; Further information: Interstate Highway System; United States Numbered Highway System; Historic trails and roads in the United States
The Yellowhead Highway branches to the north, and the Crowsnest Highway, acts as a southern spur or shortcut to traveling from Alberta to British Columbia across the Rocky Mountains. Canada's national highways are similar to the US Route network, as it is mostly two-lane without freeway sections, aside from in and near large population centres ...