Federal-Aid Highway Act of 1956
The
Federal-Aid Highway Act of 1956, popularly known as the
National Interstate and Defense Highways Act, officially began on
June 29,
1956, when a hospitalized
Dwight D. Eisenhower signed this bill creating a $25 billion system of Interstate highways. The act created a trust fund that paid for 90% of highway construction costs, with the states required to pay the rest.