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U.S. Route 17
U.S. Route 17, also known as US 17, is a 1,205-mile United States highway running along the Atlantic coast from Winchester, Virginia, to Punta Gorda, Florida.
U.S. Route 191
U.S. Route 191 is a north-south US Highway from the Canadian border in Montana to the Mexican border at Douglas, Arizona, in two segments split by Yellowstone National Park.
U.S. Route 20
U.S. Route 20, also called US Highway 20, is a 3,365-mile US numbered highway running from Boston, Massachusetts, to Newport, Oregon, crossing 12 states since 1926.
U.S. Route 21
U.S. Route 21 (US 21) is a 393-mile United States Numbered Highway from Hunting Island State Park, South Carolina, to Wytheville, Virginia. It was an original 1926 route once extending to Cleveland, Ohio.
U.S. Route 23
U.S. Route 23 is an original 1926 United States Numbered Highway running about 1,413 miles from Mackinaw City, Michigan, to Jacksonville, Florida, remembered as the "hillbilly highway" of Appalachian migration.
U.S. Route 25
U.S. Route 25 is a United States Numbered Highway established in 1926, running from Brunswick, Georgia, to Covington, Kentucky, split into 25E and 25W in Tennessee and Kentucky.
U.S. Route 29
U.S. Route 29, also known as U.S. 29, is a north-south United States Numbered Highway running 1,153 miles from Ellicott City, Maryland, to Pensacola, Florida, through seven states.
U.S. Route 290
U.S. Route 290 is a United States highway in Texas running about 290 miles from Interstate 10 near Junction through Austin to Houston, linking the two cities.
U.S. Route 3
U.S. Route 3 is a United States numbered highway running from the Boston area north through the entire length of New Hampshire to the Canada–United States border at Pittsburg.
U.S. Route 301
U.S. Route 301 is a U.S. Numbered Highway from Florida to Delaware serving as an inland alternate to Interstate 95. Established in 1932, it spans about 1,111 miles.
U.S. Route 31
U.S. Route 31 is a roughly 1,288-mile United States Numbered Highway running from Mackinaw City, Michigan, to Spanish Fort, Alabama, one of the original 1926 routes passing Indianapolis and Louisville.
U.S. Route 321
U.S. Route 321 is a 513-mile United States Numbered Highway running from Hardeeville, South Carolina, through western North Carolina to Elizabethton and Lenoir City, Tennessee, commissioned in 1930.
U.S. Route 33
U.S. Route 33 (US 33) is a United States Numbered Highway running 709 miles from Elkhart, Indiana, to Richmond, Virginia, linking Columbus, Ohio, with the mountains of West Virginia.
U.S. Route 34
U.S. Route 34, also known as US 34, is a United States Numbered Highway running from Rocky Mountain National Park in Colorado east across Nebraska and Iowa to Chicago.
U.S. Route 35
U.S. Route 35, a diagonal US highway from the Charleston, West Virginia area to Michigan City, Indiana; signed east-west in Ohio. Key facts: 37-mile four-lane WV stretch completed 2021, trucks over 30% of WV traffic, Dayton Revive35 study.
U.S. Route 36
U.S. Route 36 (US 36) is an east-west highway of the U.S. Numbered Highway System, established on November 11, 1926, running through Kansas and Missouri to Ohio.
U.S. Route 4
U.S. Route 4 is a 252.56-mile United States Numbered Highway from East Greenbush, New York, through Vermont to Portsmouth, New Hampshire, one of only three high-level east–west routes across Vermont.
U.S. Route 40
U.S. Route 40 is a major east-west United States Numbered Highway, once coast to coast, now running from Atlantic City, New Jersey, to Silver Creek Junction, Utah.
U.S. Route 42
U.S. Route 42 is a United States Numbered Highway running from Cleveland through Columbus and Cincinnati to Louisville, Kentucky, an original 1926 route signed north-south in Ohio.
U.S. Route 421
U.S. Route 421, also called the Daniel Boone Parkway in North Carolina, runs from Michigan City, Indiana to Federal Point, North Carolina, about 941-949 miles, commissioned 1930 between Boone and Greensboro.
U.S. Route 441
U.S. Route 441 is a United States Numbered Highway from Miami, Florida, to Rocky Top, Tennessee, split since 1970 into two segments by Great Smoky Mountains National Park.
U.S. Route 50
U.S. Route 50, also known as US Highway 50, is a 3,073-mile east–west highway from West Sacramento, California, to Ocean City, Maryland, best known for Nevada's "Loneliest Road" stretch.
U.S. Route 50 in Nevada
U.S. Route 50 in Nevada, called the Loneliest Road in America, is a 300-plus-mile highway crossing the state from Lake Tahoe to Great Basin National Park.
U.S. Route 51
U.S. Route 51 is an original 1926 US highway running 1,277 miles from LaPlace, Louisiana, to Hurley, Wisconsin, through six states including Tennessee and Illinois.
U.S. Route 53
U.S. Route 53, also known as US 53, is a United States Numbered Highway running about 400 miles from La Crosse, Wisconsin, to International Falls, Minnesota, on the Canadian border.
U.S. Route 54
U.S. Route 54 is a United States Numbered Highway designated in 1926, running from El Paso, Texas, northeast through New Mexico, Oklahoma, Kansas, and Missouri to Pittsfield, Illinois.
U.S. Route 550
U.S. Route 550 is a United States Numbered Highway running from Bernalillo, New Mexico, to Montrose, Colorado, including the scenic Million Dollar Highway between Ouray and Silverton.
U.S. Route 6
U.S. Route 6, also called the Grand Army of the Republic Highway, is a highway running 3,249 miles from Provincetown, Massachusetts, to Bishop, California; it was once the country's longest road.
U.S. Route 62
U.S. Route 62 is a U.S. numbered highway from El Paso, Texas, to Niagara Falls, New York, crossing ten states; distinct from state routes numbered 62 in California, Minnesota, and elsewhere.
U.S. Route 64
U.S. Route 64, also known as U.S. 64, is a 2,326-mile United States Numbered Highway from Arizona to North Carolina, crossing six states and dating to the 1926 national numbering plan.