List of special routes of the United States Numbered Highway System

A special route of the United States Numbered Highway System is a route that branches off a U.S. Highway in order to divert traffic from the main highway. Special routes are distinguished from main routes by, in most cases, the addition of an auxiliary plate that describes what type of route it is, while the main highway carries no such sign. In some locations, a single letter is placed after the route number to denote the special route type in lieu of the auxiliary plate. Among members of the roadgeek community, these routes are often called auxiliary or bannered U.S. Highways.

United States Numbered Highway System
Types of special routes in the U.S.
Highway names
US HighwaysU.S. Highway nn (US nn)
U.S. Route nn (US nn)
Special routes
  • Alternate U.S. Route nn (Alt. US nn)
  • Business U.S. Route nn (Bus. US nn)
  • Bypass U.S. Route nn (Byp. US nn)
  • Connector U.S. Route nn (Conn. US nn)
  • Scenic U.S. Route nn (Scenic US nn)
  • Spur U.S. Route nn (Spur US nn)
  • Temporary U.S. Route nn (Temp. US nn)
  • Truck U.S. Route nn (Truck US nn)
System links

There are four main types of special routes — alternate, business, bypass, and temporary; though other route types exist.

  • Alternate routes exist where an additional road is needed to meet traffic demands. They are to be of equal character and quality compared to the main road.
  • Business routes carry traffic through the central business district of a community while the main highway goes around the community.
  • Bypasses serve the opposite purpose of business routes. Truck routes are a subset of bypasses.
  • Temporary routes complete a gap between two segments of main highway that exists because the main highway has not been fully constructed.

A unique type of route in the U.S. Route system uses directional letter suffixes following the route number. These are known as divided U.S. Routes and are generally not considered to be special routes.

The following U.S. Highway special routes have existed:

  • Routes are sorted by position along the main route, from south to north and west to east.
  • Defunct routes are listed in italics.

US 1 – US 101Edit

US 1Edit

US 2Edit

US 3Edit

US 4Edit

US 5Edit

US 6Edit

US 7Edit

US 8Edit

US 9Edit

US 10Edit

US 11Edit

US 12Edit

US 13Edit

US 14Edit

US 15Edit

US 16Edit

US 17Edit

US 18Edit

US 19Edit

US 20Edit

US 21Edit

US 22Edit

US 23Edit

US 24Edit

US 25Edit

US 26Edit

US 27Edit

US 29Edit

US 30Edit

US 31Edit

US 33Edit

US 34Edit

US 35Edit

US 36Edit

US 40Edit

US 41Edit

US 42Edit

US 43Edit

US 44Edit

US 45Edit

US 49Edit

US 50Edit

US 51Edit

US 52Edit

US 53Edit

US 54Edit

US 56Edit

US 58Edit

US 59Edit

US 60Edit

US 61Edit

US 62Edit

US 63Edit

US 64Edit

US 65Edit

US 66Edit

US 67Edit

US 68Edit

US 69Edit

US 70Edit

US 71Edit

US 72Edit

US 73Edit

US 74Edit

US 75Edit

US 76Edit

US 77Edit

US 78Edit

US 79Edit

US 80Edit

US 81Edit

US 82Edit

US 83Edit

US 84Edit

US 85Edit

US 87Edit

US 89Edit

US 90Edit

US 91Edit

US 92Edit

US 93Edit

US 95Edit

US 96Edit

US 97Edit

US 98Edit

US 99Edit

US 101Edit

US 102 – US 199Edit

US 104Edit

US 111Edit

US 112Edit

US 113Edit

US 117Edit

US 119Edit

US 123Edit

US 127Edit

US 129Edit

US 130Edit

US 131Edit

US 136Edit

US 141Edit

US 150Edit

US 151Edit

US 154Edit

US 158Edit

US 160Edit

US 165Edit

US 166Edit

US 167Edit

US 169Edit

US 171Edit

US 175Edit

US 176Edit

US 178Edit

US 180Edit

US 181Edit

US 183Edit

US 189Edit

US 190Edit

US 191Edit

US 195Edit

US 200 – US 299Edit

US 201Edit

US 202Edit

US 206Edit

US 209Edit

US 211Edit

US 212Edit

US 218Edit

US 219Edit

US 220Edit

US 221Edit

US 222Edit

US 223Edit

US 224Edit

US 230Edit

US 231Edit

US 240Edit

US 250Edit

US 258Edit

US 259Edit

US 260Edit

US 264Edit

US 270Edit

US 271Edit

US 275Edit

US 276Edit

US 277Edit

US 278Edit

US 281Edit

US 283Edit

US 285Edit

US 287Edit

US 290Edit

US 300 – US 399Edit

US 301Edit

US 302Edit

US 309Edit

US 311Edit

US 319Edit

US 321Edit

US 322Edit

US 331Edit

US 340Edit

US 341Edit

US 350Edit

US 360Edit

US 377Edit

US 378Edit

US 380Edit

US 385Edit

US 395Edit

US 400 – US 499Edit

US 401Edit

US 411Edit

US 412Edit

US 421Edit

US 422Edit

US 431Edit

US 441Edit

US 460Edit

US 466Edit

US 500 – US 599Edit

US 501Edit

US 521Edit

US 522Edit

US 541Edit

US 550Edit

US 600 – US 699Edit

US 601Edit

US 611Edit

US 641Edit

US 666Edit

US 700 – US 799Edit

US 701Edit

US 730Edit

See alsoEdit

External linksEdit

  • "Alternate U S Highways: Bannered Routes". August 31, 2005. Archived from the original on September 29, 2015.