Search results
Results from the WOW.Com Content Network
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 I-80/IL 92 in East Moline, Illinois: I-290/IL 110 in Hillside, Illinois: 1987: current
I-80, US 189 north of Park City, UT: US 322 in Atlantic City, NJ: 1926: current Replaced by I-80 between San Francisco, CA and US 189 north of Park City, UT: US 41: 2,006: 3,228 US 1 at Miami Beach, FL: East of Copper Harbor, MI: 1926: current US 42: 355: 571 US 31E, US 60 in Louisville, KY: US 6, US 20, US 322, US 422 in Cleveland, OH
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.
The Pershing Map FDR's hand-drawn map from 1938. The United States government's efforts to construct a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916, which provided $75 million over a five-year period for matching funds to the states for the construction and improvement of highways. [8]
The highway system of the United States is a network of interconnected state, U.S., and Interstate highways. Each of the fifty states, the District of Columbia, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands, and the U.S. Virgin Islands own and maintain a part of this vast system, including U.S. and Interstate highways, which are not owned or maintained at the federal level.
In the 1950s, the numbering grid for the new Interstate Highway System was established as intentionally opposite from the US grid insofar as the direction the route numbers increase. Interstate Highway numbers increase from west-to-east and south-to-north, to keep identically numbered routes geographically apart in order to keep them from being ...
Interstate Highways are owned and maintained by the Indiana Department of Transportation (INDOT) unless it is a toll road. The system was authorized by the Federal-Aid Highway Act of 1956, which provided federal funds for construction of limited access highways. Indiana's initial set of seven Interstate Highways were announced in September 1957 ...
The list of Interstate Highways in Pennsylvania encompasses 23 Interstate Highways—12 primary routes and 11 auxiliary routes—which exist entirely or partially in the U.S. state of Pennsylvania. In Pennsylvania, most of the Interstate Highways are maintained by the Pennsylvania Department of Transportation (PennDOT).