Interstate 40 (I-40) is a major east–west transcontinental Interstate Highway in the southeastern and southwestern portions of the United States. At a length of 2,556.61 miles (4,114.46 km), it is the third-longest Interstate Highway in the country, after I-90 and I-80. From west to east, it passes through California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee, and North Carolina. Its western end is at I-15 in Barstow, California, while its eastern end is at a concurrency with U.S. Route 117 (US 117) and North Carolina Highway 132 (NC 132) in Wilmington, North Carolina. Major cities served by the interstate include Flagstaff, Arizona; Albuquerque, New Mexico; Amarillo, Texas; Oklahoma City, Oklahoma; Little Rock, Arkansas; Memphis, Nashville, and Knoxville in Tennessee; and Asheville, Winston-Salem, Greensboro, Durham, Raleigh, and Wilmington in North Carolina.
U.S. Route 45 is a major north-south United States highway and a border-to-border route, from Lake Superior to the Gulf of Mexico. A sign at the highway's northern terminus notes the total distance as 1,297 miles (2,087 km).
U.S. Route 79 is a United States highway in the Southern United States. The route is officially considered and labeled as a north-south highway, but its path is actually more of a diagonal northeast-southwest highway. The highway's northern/eastern terminus is in Russellville, Kentucky, at an intersection with U.S. Route 68 and KY 80. Its southern/western terminus is in Round Rock, Texas, at an interchange with Interstate 35, ten miles (16 km) north of Austin. US 79, US 68, and Interstate 24/US 62 are the primary east–west access points for the Land Between the Lakes recreation area straddling the Kentucky/Tennessee border.
U.S. Route 64 is an east–west United States highway that runs for 2,326 miles (3,743 km) from Nags Head in eastern North Carolina to just southwest of the Four Corners in northeast Arizona. The western terminus is at U.S. Route 160 in Teec Nos Pos, Arizona. The highway's eastern terminus is at NC 12 and U.S. Route 158 at Whalebone Junction, North Carolina. Major cities served along US 64's route include Tulsa, Oklahoma, Conway, Arkansas, Memphis and Chattanooga, Tennessee, and Raleigh and Rocky Mount, North Carolina.
U.S. Route 72 (US 72) is an east–west United States highway that travels for 317.811 miles (511.467 km) from southwestern Tennessee, throughout North Mississippi, North Alabama, and southeastern Tennessee. The highway's western terminus is in Memphis, Tennessee and its eastern terminus is in Chattanooga. It is the only U.S. Highway to begin and end in the same state, yet pass through other states in between. Prior to the U.S. Highway system signage being posted in 1926, the entire route was part of the Lee Highway.
The Sequatchie River is a 116-mile-long (187 km) waterway that drains the Sequatchie Valley, a large valley in the Cumberland Plateau in Tennessee. It empties into the Tennessee River downstream from Chattanooga near the Tennessee-Alabama state line.
U.S. Route 421 is a diagonal northwest–southeast United States Numbered Highway in the states of North Carolina, Tennessee, Virginia, Kentucky, and Indiana. The highway runs for 941 miles (1,514 km) from Fort Fisher, North Carolina, to US 20 in Michigan City, Indiana. Along its routing, US 421 serves several cities including Wilmington, North Carolina, Greensboro, North Carolina, Bristol, Tennessee and Virginia, Lexington, Kentucky, and Indianapolis, Indiana. US 421 is a spur route of US 21, which it meets west of Yadkinville, North Carolina.
State Route 1, known as the Memphis to Bristol Highway, is a 538.8-mile-long (867.1 km) mostly-unsigned state highway in the U.S. state of Tennessee. It stretches all the way from the Arkansas state line at Memphis in the southwest corner of the state to Bristol in the northeast part. Most of the route travels concurrently with U.S. Route 70 and US 11W. It is the longest highway of any kind in the state of Tennessee. The route is signed as both in the state of Tennessee, a Primary and Secondary Highway
U.S. Route 127 (US 127) is a 758-mile-long (1,220 km) north–south U.S. Highway in the eastern half of the United States. The southern terminus of the route is at US 27 in Chattanooga, Tennessee. The northern terminus is at Interstate 75 (I-75) near Grayling, Michigan. Since 1987, it has been the core of the annual World's Longest Yard Sale, also known as the Highway 127 Corridor Sale, which now stretches 690 miles (1,110 km) from Addison, Michigan, to Gadsden, Alabama. The sale, held every August, was started to demonstrate that the older U.S. Highway System has something to offer that the Interstate Highway System does not. In Michigan, US 127 tripled in length in 2002, taking mileage from its parent, US 27.
Interstate 40 (I-40) is an east–west Interstate Highway that has a 284.69-mile (458.16 km) section in the U.S. state of Arkansas, connecting Oklahoma to Tennessee. The route enters Arkansas from the west just north of the Arkansas River near Dora. It travels eastward across the northern portion of the state, connecting the cities of Fort Smith, Clarksville, Russellville, Morrilton, Conway, North Little Rock, Forrest City, and West Memphis. I-40 continues into Tennessee, heading through Memphis. The highway has major junctions with I-540 at Van Buren, I-49 at Alma, I-30 in North Little Rock, and I-55 to Blytheville.
The State Route System of Tennessee is maintained and developed by the Tennessee Department of Transportation (TDOT) in the U.S. state of Tennessee. Currently the state has 14,150 miles (22,770 km) of state-maintained roadways, including 1,233 miles (1,984 km) of Interstate Highways and 13,077 miles (21,045 km) of State Highways. All of the U.S. Routes in Tennessee have a state route routed concurrently with them, though the state route is hidden and only signed along the green mile marker signs that display mileage within each county. The state route system in Tennessee was established in 1923. Since the 1983 renumbering, state routes have been divided into primary and secondary routes with separate shields used for each.
U.S. Route 64 is a U.S. highway running from Teec Nos Pos, Arizona east to Nags Head, North Carolina. In the U.S. state of Arkansas, the route runs 246.35 miles (396.46 km) from the Oklahoma border in Fort Smith east to the Tennessee border in Memphis. The route passes through several cities and towns, including Fort Smith, Clarksville, Russellville, Conway, Searcy, and West Memphis. US 64 runs parallel to Interstate 40 until Conway, when I-40 takes a more southerly route.
U.S. Route 23 (US 23) is a part of the U.S. Highway System that travels from Jacksonville, Florida to Mackinaw City, Michigan. In the U.S. state of Tennessee, the highway travels 57.5 miles (92.5 km) in the northeastern part of the state from the North Carolina state line at Sam's Gap in the Bald Mountains, north to the Virginia state line in Kingsport. With a predominant concurrency with Interstate 26 (I-26), US 23 is a divided four-lane freeway that follows Corridor B of the Appalachian Development Highway System (ADHS) and serves as a major thoroughfare in the Tri-Cities. Although I-26 is technically an east-west route, the highway predominantly travels in a north-south alignment in Tennessee. The route reaches a maximum elevation of 3,760 feet (1,150 m) at the North Carolina state line, which is the highest elevation on the Interstate Highway System east of the Mississippi River.
In Tennessee, U.S. Route 64 stretches 404.1 miles (650.3 km) from the Mississippi River in Memphis to the North Carolina state line near Ducktown. The highway, along with US 72, is a major route for travel between Memphis and Chattanooga.
State Route 164 is a north–south state highway in the Cumberland Plateau region of eastern Middle Tennessee. For the majority of its length, it is known as Hanging Limb Highway.
