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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

US 75 in Hinton

U.S. Highway 75 (US 75) is a United States Highway in northwestern Iowa. It begins at the Missouri River on a bridge with Interstate 129 (I-129) and US 20. Immediately upon landing in Iowa from Nebraska, I-129 ends at an interchange with I-29. US 20 and US 75 continue around Sioux City on a four-lane expressway until US 20 exits to the east. US 75 heads to the north-northeast, parallel to the Floyd River, until Le Mars. There, Iowa Highway 60 (Iowa 60) continues northeastward on the expressway while US 75 heads due north. Near Hull, it is briefly overlapped by US 18. It leaves the state and enters Minnesota north of Rock Rapids. US 75 was one of the original U.S. Highways to be created in 1926, though its roots trace back nine years prior to the creation of the King of Trails, a 2,000-mile-long (3,200 km) auto trail that connected Winnipeg, Manitoba, and Galveston, Texas. In the Upper Midwest, there were two branches of the King of Trails that converged at Sioux City, which then continued south to Council Bluffs. In 1920, the Iowa State Highway Commission assigned route numbers to roads in order to improve wayfinding for travelers. The King of Trails was assigned Primary Road No. 12 (No. 12) from Council Bluffs to Sioux City and the western branch and No. 22 along the eastern branch. In 1926, the U.S. Highway 75 name was applied through Iowa to Primary Roads No. 12 and 22, the King of Trails route. In the 1950s, US 75's importance began to wane as I-29 was built along the Missouri River. As sections of the Interstate Highway opened up between Council Bluffs and Sioux City, US 75 were rerouted onto the new road. In 1984, the southern half of US 75 was removed from Iowa and rerouted into Nebraska. Today, the highway is still an important part of Iowa's highway system. In the late 1990s and throughout the 2000s, the highway along with Iowa 60 were improved into a continuous four-lane expressway between Sioux City and Minnesota.

Recently selected: New York State Route 308 • California State Route 75 • M-1 (Michigan highway)

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J. F. Roberts Octagonal Barn, located on Missouri Route 48


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. ^ Lu, Amy (November 20, 2017). "Maryland Portion of Route 404 Complete, Farmers Still Concerned with Traffic". Salisbury, MD: WBOC-TV. Retrieved November 20, 2017. 
  2. ^ Ryan, Kate (November 20, 2017). "Maryland 404 widening unveiled, bittersweet for safety advocate". Washington, D.C.: WTOP-FM. Retrieved November 20, 2017. 
  3. ^ Kent, AnnMarie (October 9, 2017). "UP Highway Named Newest Pure Michigan Byway". UpNorthLive. Traverse City, MI: WPBN-TV. Archived from the original on October 9, 2017. Retrieved October 12, 2017. 
  4. ^ Hayes, Brittany (October 6, 2017). "Route 125 Closed in Schuylkill County Following Road Collapse". Scranton, PA: WNEP-TV. Retrieved October 20, 2017. 
  5. ^ "NDOT opens USA Parkway Extension 3 months ahead of schedule" (Press release). Nevada Department of Transportation. September 8, 2017. Retrieved September 9, 2017 – via Carson Now. 
  6. ^ Stradling, Richard (September 6, 2017). "Have you driven on I-87 yet?". News and Observer. Retrieved September 6, 2017. 
  7. ^ "First Section of Interstate 11 to Open in Nevada". U.S. News & World Report. Associated Press. August 10, 2017. 
  8. ^ Dornan, Geoff (June 17, 2017). "Carson City Bypass to Open First Week in August". Nevada Appeal. 
  9. ^ Deach, Ben (August 2, 2017). "Freeway Extension to Save Drivers Time in Carson City". KOLO-TV. 
  10. ^ National Park Service (July 28, 2017). "National Register of Historic Places Program: Weekly List". National Park Service. Retrieved August 2, 2017. 
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