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Portal:U.S. roads

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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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The Alaskan Way Viaduct in Downtown Seattle

State Route 99 (SR 99), also known as the Pacific Highway, is a state highway in the Seattle metropolitan area, part of the U.S. state of Washington. It runs 49 miles (79 km) from Fife in the south to Everett in the north, passing through the cities of Federal Way, SeaTac, Seattle, Shoreline, and Lynnwood. The route primarily follows arterial streets that once formed part of U.S. Route 99 (US 99) but has several freeway segments, including the SR 99 Tunnel in Downtown Seattle. US 99 was created in 1926 and replaced earlier local roads that date back to the 1890s and state roads designated as early as 1913. The highway was moved onto the Alaskan Way Viaduct in 1953, replacing a congested stretch through Downtown Seattle, and other sections were built to expressway standards in the 1950s. US 99 was ultimately replaced by the Tacoma–Everett section of Interstate 5 (I-5), which opened in stages between 1965 and 1969. After decades of rampant crime on some sections of SR 99, created to keep sections of the highway under state control, various city governments funded projects to beautify the highway and convert it into a boulevard. The Alaskan Way Viaduct was closed on January 11, 2019, and is planned to be replaced with a downtown bored tunnel that is scheduled to open on February 4, 2019. The $3 billion replacement project was spurred by the 2001 Nisqually earthquake, which damaged the viaduct and left it vulnerable to further damage, as well as city plans to revitalize the Seattle waterfront, but was mired in planning delays for several years before construction began in 2013 using Bertha, the world's largest tunnel boring machine.

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M-10 (Lodge Freeway) passing under Cobo Hall

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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. ^ Lindblom, Mike (February 4, 2019). "New tunnel? No problem? It was an easy, light-traffic day Monday on Highway 99". The Seattle Times. Retrieved February 6, 2019.
  2. ^ Smith, Jerry (January 10, 2019). "U.S. 301 Mainline toll road opens Thursday to cheers and jeers". The News Journal. Wilmington, DE. Retrieved January 10, 2019.
  3. ^ "Route 219 extension opens". The Tribune-Democrat. Johnstown, PA. November 21, 2018. Retrieved November 22, 2018.
  4. ^ Campbell, LouAnna (November 7, 2018). "Lindale relief route open, Toll 49 extended from I-20 to US Highway 69, north of Lindale". Tyler Morning Telegraph. Retrieved January 31, 2019.
  5. ^ "Hogan Administration Announces Long-Awaited US 219 Realignment Construction Project in Garrett County" (Press release). Maryland State Highway Administration. October 13, 2018. Retrieved October 13, 2018.
  6. ^ Sofield, Tom (September 22, 2018). "Decades in the Making, I-95, Turnpike Connector Opens to Motorists". Levittown Now. Retrieved September 22, 2018.
  7. ^ Williams, Kevin (August 2, 2018). "E-ZPass is coming to some local toll roads starting Sept. 1". Orlando, FL: WFTV. Retrieved August 31, 2018.
  8. ^ Marroquin, Art (August 9, 2018). "Nation's newest freeway, 15-mile stretch of I-11 ready to roll". Las Vegas Review-Journal. Retrieved August 11, 2018.
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