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.

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M-37 interchange incomplete while the remainder of the freeway was under construction

M-6, or the Paul B. Henry Freeway, is a 19.696-mile (31.698 km) freeway that serves portions of southern Kent and eastern Ottawa counties south of Grand Rapids. The freeway is named for Paul B. Henry, a congressman who died in office representing the area. The freeway connects Interstate 196 (I-196) on the west to I-96 on the east while running through the south side of the Grand Rapids metropolitan area in Western Michigan. Each end is in a rural area while the central section has suburban development along the freeway near the connection to US Highway 131. The freeway was originally conceived in the 1960s. It took 32 years to plan, finance, and build the freeway from the time that the state first authorized funding in 1972 until the South Beltline opened to traffic in November 2004. Initial construction started in November 1997, with the first phase opened in November 2001. The first phase of construction was completed in asphalt, while the second and third phases were built in concrete, costing a total of $700 million. The project was built with two firsts: the first single-point urban interchange in Michigan, and a new technique to apply the pavement markings, embedding them into the concrete to reduce the chance of a snowplow scraping them off.

Recently selected: New York State Route 32 • California State Route 94 • U.S. Route 67 in Iowa

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Hardscrabble Pass.JPG
Colorado State Highway 96 at Hardscrabble Pass.

Recently selected: Tennessee State Route 123 • U.S. Route 25 in South Carolina • Merritt Parkway

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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. ^ Bryant, David (January 26, 2017). "Highway 190 is officially Interstate Highway 14 from Cove to Belton". Killeen Daily Herald. 
  2. ^ "Delaware River Bridge closed due to structural problem". Philadelphia, PA: WPVI-TV. January 20, 2017. Retrieved January 20, 2017. 
  3. ^ 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. 
  4. ^ "Tolling begins on Lincoln, Lewis and Clark, and Kennedy Bridges". WHAS 11 ABC. December 30, 2016. Retrieved January 29, 2017. 
  5. ^ Stewart, Joshua (December 3, 2016). "South County Freeway Connector Work Done". San Diego Union-Tribune. p. 6. 
  6. ^ Abrams, Mark (October 13, 2016). "PA Turnpike Now Accepts Credit Cards As Payment Option". Philadelphia, PA: KYW-TV. Retrieved October 13, 2016. 
  7. ^ "West Michigan Pike Noted as a Historic Byway, Tourist Draw". Grand Rapids, MI: WOOD-TV. Associated Press. July 25, 2016. Retrieved July 25, 2016. 
  8. ^ Nujs, Elliot (June 30, 2016). "First new Portland-area highway in nearly 3 decades to open in Clackamas". The Oregonian. Retrieved July 1, 2016. 
  9. ^ "Cave Rock Tunnel Extension and Water Quality Project". Nevada Department of Transportation. Retrieved July 17, 2016. 
  10. ^ Corona, Marcella (June 28, 2016). "Cave Rock extension means Fourth of July travel delays". Reno Gazette Journal. Retrieved July 17, 2016. 
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