Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways (commonly known as the Interstate Highway System, Interstate Freeway System, Interstate System, or simply the Interstate) is a network of controlled-access highways that forms a part of the National Highway System of the United States. The system is named for President Dwight D. Eisenhower, who championed its formation. Construction was authorized by the Federal Aid Highway Act of 1956, and the original portion was completed 35 years later. The network has since been extended, and as of 2012, it had a total length of 47,714 miles (76,788 km), making it the world's second longest after China's. As of 2011, about one-quarter of all vehicle miles driven in the country use the Interstate system. The cost of construction has been estimated at $425 billion (in 2006 dollars).
Full article...
Books/Sources
- Interstate Highway System: Celebrating 50 Years of the Eisenhower Highway Project, plus Archives of Public Roads... - U.S. Government
- INTERSTATE HIGHWAY SYSTEM: An entry from Charles Scribner's Sons' Dictionary of American History - Robert Matthews
Youtube
- American Highway System Construction in 1954 - "Give Yourself the Green Light" - Ella73TV
- Interstate Highways in the 1950's - American Roads & Transport Documentary - WDTVLIVE42