Interstate Highway System

American  

[in-ter-steyt hahy-wey sis-tuhm] / ˈɪn tərˌsteɪt ˈhaɪˌweɪ ˌsɪs təm /

noun

1. Official Name Dwight D. Eisenhower National System of Interstate and Defense Highways.  a network of U.S. highways connecting the 48 conterminous states, begun in the 1950s and estimated to carry about 25 percent of the nation's traffic: also established in Alaska, Hawaii, and Puerto Rico, but without physical connections to other states or territories.

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Example Sentences

And it is optimizing the routes taken by its trucks, 5,000 of which rumble each day along company logging roads whose mileage rivals the Interstate Highway System.

From The Wall Street Journal • Apr. 23, 2026

Within a year, President Eisenhower had signed the bill that would create the Interstate Highway System as we know it today.

From Los Angeles Times • Apr. 18, 2024

On Thursday, the departments of energy and transportation jointly announced $5 billion for states to build out a network of EV chargers along the Interstate Highway System.

From Salon • Feb. 27, 2022

It’s a historic investment that the president has compared to the building of the transcontinental railroad and Interstate Highway System.

From Seattle Times • Nov. 15, 2021

So that maximum progress can be made to overcome present inadequacies in the Interstate Highway System, we must continue the Federal gasoline tax at two cents per gallon.

From State of the Union Address by Eisenhower, Dwight D. (Dwight David)