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The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States.
These U.S. Numbered Highways were initially designated on November 11, 1926, and extend throughout the contiguous United States. There are several U.S. Highways that exist entirely within one state.
The United States Numbered Highway System is an older system consisting mostly of surface-level trunk roads, coordinated by the American Association of State Highway and Transportation Officials and maintained by state and local governments.
This map shows the Interstate highways in the contiguous US, color-coded by route number and type. (Alaska, Hawaii, and Puerto Rico also have Interstate highways, but use separate numbering systems.) This map uses publicly available data from OpenStreetMap displayed using Mapbox GL JS .
By November, however, when AASHO approved the numbering plan, the four States had agreed on the North/South split, and this is how it was shown in the first official log of U.S. numbered highways.
17 de feb. de 2022 · First, let's talk major interstates. Essentially all of these highway systems have double-digit numbers, with just one pesky exception. East-west highway systems all end with "0" and are numbered...
30 de abr. de 2018 · The United States Numbered Highway System (also known as U.S. Routes or U.S. Highways) forms a nationwide grid that dates back to 1926. Route numbers and locations are coordinated by the American Association of State Highway and Transportation Officials.
