List of future Interstate Highways

Dwight D. Eisenhower National System of Interstate and Defense Highways
Dwight D. Eisenhower National System of Interstate and Defense Highways
	Shields for future Interstates
	Proposed Interstate Highways in December 2015
System information
Formed	June 29, 1956
Highway names
Interstates	Interstate X (I-X)
System links
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future;

In the United States, future Interstate Highways include proposals to establish new mainline (one- and two-digit) routes to the Interstate Highway System. Included in this article are auxiliary Interstate Highways (designated by three-digit numbers) in varying stages of planning and construction, and the planned expansion of existing primary Interstate Highways.

^ Weingroff, Richard F. (Summer 1996). "Federal-Aid Highway Act of 1956, Creating the Interstate System". Public Roads. 60 (1). Washington, DC: Federal Highway Administration. Retrieved March 16, 2012.

[FAHA56-1] Weingroff, Richard F. (Summer 1996). "Federal-Aid Highway Act of 1956, Creating the Interstate System". Public Roads. 60 (1). Washington, DC: Federal Highway Administration. Retrieved March 16, 2012.

[1]