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The Interstate Highway System has been criticized for contributing to the decline of some cities that were divided by Interstates, and for displacing minority neighborhoods in urban centers. [3] Between 1957 and 1977, the Interstate System alone displaced over 475,000 households and one million people across the country. [ 4 ]
SBI Route numbers that were superseded by other routes, US or state routes were often reused. For example, SBI Route 61 was originally assigned to a road segment in northeastern Illinois, but was reassigned to a route in western Illinois, sometime after 1937. Illinois Route 72 cross-sign mounted on a stoplight in Hoffman Estates
After construction of the first toll highways in Illinois was delayed by World War II, the Illinois State Toll Highway Commission was established in 1953. The first three toll highways in the Chicago area were all planned, constructed, and opened in 1958 under the authority of this Commission. [6]
The Interstate Highway System in Illinois consists of 13 primary highways and 11 auxiliary highways which cover 2,248.93 miles (3,619.30 km). [2] The Interstate Highway with the longest section in Illinois is Interstate 57 at 358.57 miles (577.06 km); the shortest is Interstate 41 at 0.90 miles (1.45 km).
By 1957, AASHO had decided to assign a new grid to the new routes, to be numbered in the opposite directions as the U.S. Highway grid. Though the Interstate numbers were to supplement—rather than replace—the U.S. Route numbers, in many cases (especially in the West) the US highways were rerouted along the new Interstates. [12]
Illinois's state route numbers originated in 1918 as State Bond Issues 1 through 46, used to finance the new roads. The numbers of the bond issues were then used to mark the highway routes along the way. Another series of bond issues were authorized in 1924 (47–185) and again were used to mark the roads they paid for.
Five roads in Illinois were designated to receive federal money under the legislation; they were: the National Old Trails Road (National Road, present-day US 40), Lincoln Highway, Dixie Highway, the road from Chicago to Waukegan, and the road from Chicago to East St. Louis, including portions of IL 4, which was the actual predecessor to US 66 ...
This is a list of U.S. Highways in Illinois, all of which are owned and maintained by the U.S. state of Illinois. The Illinois Department of Transportation (IDOT) is responsible for maintaining the U.S Highways in Illinois. The system in Illinois consists of 20 primary highways.