In 1925, the Joint Board on Interstate Highways, recommended by the American Association of State Highway Officials (AASHO), worked to form a national numbering system to rationalize the roads. After several meetings, a final report was approved by the U.S. Department of Agriculture in November 1925.
People also ask
When did the US start numbering highways?
In 1926 the American Association of State Highway Officials (AASHO) established and numbered interstate routes (United States Numbered Highways), selecting the best roads in each state that could be connected to provide a national network of federal highways.
When did the US highway system start?
From the day President Dwight D. Eisenhower signed the Federal-Aid Highway Act of 1956, the Interstate System has been a part of our culture as construction projects, as transportation in our daily lives, and as an integral part of the American way of life.
Who came up with the interstate numbering system?
Officials of AASHTO developed the procedure for numbering the routes. Major Interstate routes are designated by one- or two-digit numbers. Routes with odd numbers run north and south, while even numbered run east and west.
Is US 1 the oldest highway?
Once known as Pequot Path, King's Highway, and the Boston Post Road, U.S. Route 1 has paved the way for interstate commerce in the United States. What is now U.S. Route 1 was once colonial America's first highway.
Although named trails can be traced to the 1890's, the movement began in earnest in the early 1910's, with the National Old Trails Road (Baltimore to Los ...

US Numbered Highways

Highway system
The United States Numbered Highway System is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. Wikipedia
Length: 157,724 mi (253,832 km)
Highways are split into at least four different types of systems in the United States: Interstate Highways, U.S. Highways, state highways, and county ...
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Jun 30, 2023 · The Interstate System was built under the principles of the Federal-aid highway program, which was established in 1916. The Federal Government ...
The named trails were a product of the pioneer days of auto travel, but helped build interest in good roads during the 1910's.
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The American Association of State Highway Officials (AASHO), formed in 1914 to help establish roadway standards, began to plan a system of marked and numbered " ...
The US Highway System was created by the Federal Aid Highway Act of 1925 as a response to the confusion created by the 250 or so named highways, such as the ...
The United States Numbered Highway System (U.S. Highway System, often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways ...
Nov 11, 2014 · On November 11, 1926, the newly established United States Numbered Highway System changed the way U.S. drivers navigate the country.
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Expansion of the system continued until 1956, when the Interstate Highway System was formed. After construction was completed, many U.S. Routes were replaced by ...