- Source: List of divided U.S. Routes
- Bahasa Inggris
- Detroit
- List of divided U.S. Routes
- Special routes of U.S. Route 79
- Special routes of U.S. Route 98
- Special routes of U.S. Route 95
- Special routes of U.S. Route 75
- Special routes of U.S. Route 70
- Special routes of U.S. Route 66
- List of United States Numbered Highways
- United States Numbered Highway System
- List of suffixed Interstate Highways
Some U.S. Routes are given directional suffixes to indicate a split of the main route — for instance, U.S. Route 25 (US 25) splits into US 25E (east) and US 25W (west) between Newport, Tennessee and North Corbin, Kentucky, and US 9W is an alternate of U.S. Route 9 between Fort Lee, New Jersey and Albany, New York. These splits were in the U.S. Highway system from the beginning, and were used when two roughly-equivalent routes existed. The American Association of State Highway and Transportation Officials (AASHTO) no longer assigns these numbers, and, in theory, current ones are to be eliminated "as rapidly as the State Highway Department and the Standing Committee on Highways can reach agreement". This policy was adopted by 1996; however, many of these routes still exist, mostly in Tennessee.
List of routes
See also
U.S. Roads portal
List of suffixed Interstate Highways
References
External links
"AASHTO – Establishment and Development of United States Numbered Highways" (PDF). Archived from the original (PDF) on November 1, 2006. (15.6 KiB)