Interstate Highway
shields for Interstate 69 and Interstate 465
Interstate Highways highlighted in red
Interstates Interstate X (I-X) US Highways U.S. Route X (US X) State State Road X (SR X)
Indiana State Highway System
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.[ 1]
Primary Interstates
Auxiliary Interstates
See also
References
^ Hodenfield, G. K. (September 26, 1957). "New Markers to Dot Super Roads" . The Indianapolis News . p. 1. Retrieved November 28, 2021 – via Newspapers.com .
^ Federal Highway Administration (January 19, 2012). "Table 1" . Route Log and Finder List . Federal Highway Administration.
^ Federal Highway Administration (October 31, 2002). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of October 31, 2002" . Route Log and Finder List . Federal Highway Administration. Retrieved July 8, 2007 .
^ "I-164 Renamed to I-69 by End of Year" (Press release). Indiana Department of Transportation. November 18, 2014. Archived from the original on March 3, 2017. Retrieved March 2, 2017 .
^ a b c Federal Highway Administration (December 31, 2016). "Table 2" . Route Log and Finder List . Federal Highway Administration. Retrieved March 14, 2017 .