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Portal:U.S. Roads

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The U.S. Roads Portal

The highway system of the United States is a network of interconnected state, U.S., and Interstate highways. Each of the fifty states, the District of Columbia, Puerto Rico, American Samoa, Guam, and the U.S. Virgin Islands own and maintain a part of this vast system, including U.S. and Interstate highways, which are not owned or maintained at the federal level.

Interstate Highways have the highest speed limits and the highest traffic. Interstates are numbered in a grid: even-numbered routes for east–west routes (with the lowest numbers along Mexico and the Gulf of Mexico), and odd-numbered routes are north–south routes (with the lowest numbers along the Pacific Ocean). Three-digit Interstates are, generally, either beltways or spurs of their parent Interstates (for example, Interstate 510 is a spur into the city of New Orleans, Louisiana, and is connected to Interstate 10).

U.S. Numbered Highways are the original interstate highways, dating back to 1926. U.S. Highways are also numbered in a grid: even numbered for east–west routes (with the lowest numbers along Canada) and odd numbered for north–south routes (with the lowest numbers along the Atlantic Ocean). Three-digit highways, also known as "child routes," are branches off their main one- or two-digit "parents" (for example, U.S. Route 202 is a branch of U.S. Route 2). However, US 101, rather than a "child" of US 1, is considered a "mainline" U.S. Route.

State highways are the next level in the hierarchy. Each state and territory has its own system for numbering highways, some more systematic than others. Each state also has its own design for its highway markers; the number in a circle is the default sign, but many choose a different design connected to the state, such as an outline of the state with the number inside. Many states also operate a system of county highways.

National Forest Scenic Byway marker

Scenic byways can be designated over any classification of road in the United States. There are the National Scenic Byways, National Forest Scenic Byways and Bureau of Land Management Back Country Byways at the national level. Most states have their own system for designating byways, some more systematic than others. Indian tribes may designate byways as well.

Selected article

State Route 88 at Tortilla Flat

State Route 88 (SR 88) is a 45.67 mi (73.50 km) long state highway in the U.S. state of Arizona. It runs from U.S. Route 60 (US 60) in Apache Junction through desert terrain to SR 188 near Roosevelt Dam. Following the Salt River for much of its length, the section east of Tortilla Flat is known as the Apache Trail and is part of the National Forest Scenic Byway system. The Apache Trail was built in the mid-1920s and the number 88 was assigned in 1927. An eastern extension of SR 88 to Globe was redesignated as SR 188 in the late 1990s.

Recently selected: Mississippi Highway 23 • Atlantic City Expressway • M-6 (Michigan highway)

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U.S. Roads news


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Nominations and votes for selected articles and selected pictures are always needed. Anyone can nominate an article, and anyone can vote for an article. You can also recommend items for Did you know?. If you have news related to U.S. roads, you can add it to the news section above.

See also Wikipedia:WikiProject U.S. Roads/to do, Category:U.S. road articles needing attention and individual state highway project to-do lists.

Related portals

Numbered highways in the United States

References and notes

  1. ^ Geoff Dornan (June 17, 2017). "Carson City Bypass to open first week in August". Nevada Appeal. 
  2. ^ Staff (May 10, 2017). "Monitor Pass southeast of Lake Tahoe opens; latest opening in 13 years". Sierra Sun. Retrieved May 10, 2017. 
  3. ^ Elin. "Sonora Pass (Highway 108) opening today at 2:00pm". Mono Lake Committee. Retrieved June 17, 2017. 
  4. ^ Amy Graff (May 12, 2017). "Caltrans workers clearing Tioga Pass encounter 50-foot-high snowdrifts". San Francisco Gate. Retrieved June 17, 2017. 
  5. ^ Rozier, Alex (June 5, 2017). "I-90 express lanes now closed, new HOV lanes open". KING 5 News. Retrieved June 5, 2017. 
  6. ^ Buchanan, Christopher (March 30, 2017). "Portion of I-85 collapses in massive fire". Atlanta, GA: WXIA-TV. Retrieved March 30, 2017. 
  7. ^ Bryant, David (January 26, 2017). "Highway 190 is officially Interstate Highway 14 from Cove to Belton". Killeen Daily Herald. 
  8. ^ "Delaware River Bridge closed due to structural problem". Philadelphia, PA: WPVI-TV. January 20, 2017. Retrieved January 20, 2017. 
  9. ^ Beilman, Elizabeth (December 18, 2016). "At Last: East-end bridge, dubbed Lewis and Clark, opens to traffic". Jeffersonville, IN: News and Tribune. Retrieved January 29, 2017. 
  10. ^ "Tolling begins on Lincoln, Lewis and Clark, and Kennedy Bridges". WHAS 11 ABC. December 30, 2016. Retrieved January 29, 2017. 
  11. ^ Stewart, Joshua (December 3, 2016). "South County Freeway Connector Work Done". San Diego Union-Tribune. p. 6. 
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