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Created in 1956 by Dwight D. Eisenhower, the Interstate Highway System planned 66 thousand kilometers of expressways, an initial budget of US$ 25 billion, and changed transportation, the economy, and the integration of the United States.
The Interstate Highway System was formalized in the United States on June 29, 1956, when Dwight D. Eisenhower signed the Federal-Aid Highway Act. The plan envisioned about 66 thousand kilometers of expressways and an initial budget of US$ 25 billion, changing mobility, the economy, and national integration.
Interstate Highway System was born from a military and logistical demand
The creation of the Interstate Highway System was the result of a need that Eisenhower had already perceived decades earlier. In 1919, he participated in a military convoy that crossed the United States in 62 days.
The slowness of the journey showed the difficulties of moving within the country. Years later, during World War II, Eisenhower also observed the efficiency of the German Autobahns, an experience that reinforced the idea of a modern highway network.
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The goal was to facilitate the transportation of people, goods, and military equipment. Therefore, the project gained importance not only economically but also strategically for National Defense, especially in the context of the Cold War.
Plan envisioned 66 thousand km of roads and billion-dollar investment
The Federal-Aid Highway Act, signed on June 29, 1956, laid the foundations for one of the largest public works in United States history. The original plan envisioned about 66 thousand kilometers of expressways.
The initial investment was estimated at US$ 25 billion, a figure considered gigantic for the 1950s. Technical estimates of the time also pointed to about 64,000 kilometers within the road planning.
These numbers show the scale of the project. In 1961, according to data from an article by Catraca Livre, the Department of Public Roads released a calculation indicating that the concrete used would be enough to build six pavements to the Moon.
Federal funding accelerated construction in various states
The funding model was decisive in getting the project off the ground. The federal government assumed 90% of the costs, while the states were responsible for the other 10%.
This division allowed for progress with works in different regions of the country. It also helped maintain similar technical standards in the construction of highways, connecting urban areas, economic centers, and strategic routes.
The greater federal participation reduced the financial burden on the states and made it possible to execute a national highway network with a large territorial reach.
Network changed transportation, suburbs, and the American economy
With the expansion of the system, practically all major cities in the United States became connected by express highways.
Freight transport became faster, reducing logistical costs and benefiting various economic sectors.
The network also favored the automotive industry, stimulated interstate travel, and contributed to the expansion of suburbs.
More than a road project, it redefined the way people and goods circulated throughout the country.
Decades later, the Interstate Highway System continues to be cited as a global reference in infrastructure planning and as an example of large-scale public investment.
This article was prepared based on information from the material provided about the Interstate Highway System, with data, numbers, and statements preserved as per the material consulted.
