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

Entrance sign north of Hale

The River Road National Scenic Byway (also called the River Road National Forest Scenic Byway) is a National Scenic Byway and National Forest Scenic Byway in the US state of Michigan. This 23 12-mile-long (37.8 km) byway follows M-65 and River Road; it extends eastward into the Huron National Forest and ends in the historic community of Oscoda near Lake Huron. The road parallels the historic Au Sable River (French: Rivière aux Sable, "River of Sand") which has historically been a major transportation route for floating Michigan’s giant white pine from the forest to the saw mill towns on Lake Huron. Along its course, the roadway offers access to several recreational areas as well as the local scenery. The section of the River Road that follows M-65 was added to the State Trunkline Highway System in the 1930s. The River Road was given National Forest Scenic Byway status in 1988, and National Scenic Byway status in 2005.

Recently selected: Virginia State Route 253 • New York State Route 343 • California State Route 56

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1956-11-01 M-87 (Main & Center Sts., Fenton, Michigan).jpg

A 1956 view of M-87 in Fenton, Michigan.

Recently selected: U.S. Highway 30 • U.S. Highway 74 • U.S. Highway 201

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View of Newburgh Bay and Pollepel Island from highway, 2006


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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.

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Numbered highways in the United States

References and notes

  1. ^ Forgey, Pat (September 18, 2014). "Parnell hails DOT's new Juneau road plan; Walker calls for fiscal caution". Alaska Dispatch News (Anchorage, AK). Retrieved September 19, 2014. 
  2. ^ "Speed limit now 80 mph on some Idaho interstates". Boise, ID: KTVB-TV. July 24, 2014. Retrieved July 25, 2014. 
  3. ^ Smith, Katelyn (July 22, 2014). "Speed limit raised to 70 mph on Pa. Turnpike". Lancaster, PA: WGAL-TV. Retrieved July 22, 2014. 
  4. ^ Staff (July 12, 2014). "BOOM! WATCH the demolition of the Innerbelt Bridge". Cleveland, OH: WKYC-TV. Retrieved July 24, 2014. 
  5. ^ Staff (June 27, 2014). "Corning area now has 2 interstates; U.S. 15 designated I-99 to Pa. border". Star-Gazette (Elmira, NY). Retrieved June 28, 2014. 
  6. ^ "I-495 Closed at Bridge Over Christina River". Philadelphia: WCAU-TV. June 2, 2014. Retrieved June 2, 2014. 
  7. ^ "Governor Corbett, Pennsylvania Turnpike, Other Officials Break Ground on First Project Linking Pittsburgh International Airport to I-79". Pennsylvania Turnpike Commission. May 12, 2014. Retrieved May 13, 2014. 
  8. ^ Abdel-Razzaq, Lauren (April 5, 2014). "The Driving Challenge Begins with I-96 Closure". The Detroit News. Retrieved April 6, 2014. 
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