Analyze
National System of Interstate and Defense
Genre: Map | Creator: American Automobile Association | Date: 1958
Background
In 1956, President Dwight D. Eisenhower signed the National Interstate and Defense Highways Act. The bill called for the largest public works project in United States history: an interstate highway system. The highways would span 41,000 miles and cost $25 billion. This map shows how that system would crisscross the United States.
![](https://www.imaginelearning.com/wp-content/uploads/2024/05/TRV-Explorer-us-highway-map.jpg)