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List of Interstate Highways. There are 70 primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, odd-numbered Interstates run ...
Highway shields for Interstate 80, Business Loop Interstate 80, and the Eisenhower Interstate System Primary Interstate Highways in the 48 contiguous states. Alaska, Hawaii, and Puerto Rico also have Interstate Highways. System information Length 48,890 mi [a] (78,680 km) Formed June 29, 1956 ; 68 years ago (1956-06-29) Highway names Interstates Interstate X (I-X) System links Interstate ...
At approximately 0.50 miles (0.80 km), I-78 is the shortest main Interstate Highway, while I-90 is the longest, spanning 385.88 miles (621.01 km) within New York. I-878, located in Queens, is the shortest active route in the Interstate Highway System at 0.7 miles (1.13 km). Small portions of I-278 in New York City are maintained by local ...
The National Highway System ( NHS) is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, military bases, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities. Altogether, it constitutes the largest ...
I-5 is a major Interstate Highway that spans 1,381 miles (2,223 km) and runs north–south through the West Coast states of California, Oregon, and Washington. It connects several major metropolitan areas as well as agricultural regions, seaports, and freight destinations. The freeway ranges from four lanes in some rural sections to 22 lanes in ...
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.
3,813. Fleming and Whitehead streets in Key West, FL. Route 161 at Canadian border in Fort Kent, ME. 01926-01-01. 1926. current. Follows the East Coast of the United States, longest north-south US Highway. US 2. 2,112.
Schererville, Indiana, uses the motto "Crossroads of the Nation" to describe the intersection of U.S. Route 30 and U.S. Route 41 in the center of town. Much of US 30 was originally the Lincoln Highway, one of the first cross country highways in America. US 41 was once one of the most traveled roads from the Midwestern United States to the ...