Interstate 20 (I‑20) is a major east–west Interstate Highway in the Southern United States. I-20 runs 1,539 miles (2,477 km) beginning at an interchange with I-10 in Scroggins Draw, Texas and ending at an interchange with I-95 in Florence, South Carolina. Between Texas and South Carolina, I-20 runs through northern Louisiana, Mississippi, Alabama, and Georgia. The major cities that I-20 connects to include Fort Worth, Texas; Dallas, Texas; Shreveport, Louisiana; Jackson, Mississippi; Birmingham, Alabama; Atlanta, Georgia; Augusta, Georgia; and Columbia, South Carolina.
Interstate 73 (I-73) is a north–south Interstate Highway, located within the US state of North Carolina. Currently, there is one continuous section of I-73, totaling 93.5 miles (150.5 km), first traversing the U.S. Route 220 (US 220) freeway 70 miles (110 km) from Ellerbe, North Carolina, to I-85 in Greensboro, North Carolina, then along the southwestern segment of the Greensboro Outer Loop 12 miles (19 km) from US 220 to Bryan Boulevard, then 9.5 miles (15.3 km) along a freeway from Bryan Boulevard west then north to US 220 near Summerfield, North Carolina.
Interstate 85 (I-85) is a major Interstate Highway in the Southeastern United States. Its southern terminus is at an interchange with I-65 in Montgomery, Alabama; its northern terminus interchanges with I-95 in Petersburg, Virginia, near Richmond. It is nominally north–south as it carries an odd number, but it is physically oriented northeast–southwest and covers a larger east-west span than north-south. While most interstates that end in a "5" are cross-country, I-85 is primarily a regional route serving five southeastern states: Virginia, North Carolina, South Carolina, Georgia, and Alabama. Major metropolitan areas served by I-85 include the Greater Richmond Region in Virginia, the Research Triangle, Piedmont Triad, and Charlotte metropolitan area regions of North Carolina, Upstate South Carolina, the Atlanta metropolitan area in Georgia, and the Montgomery metropolitan area in Alabama. There are plans to extend I-85 along the US 80 corridor into Mississippi. Because of its diagonal nature, portions of I-85 are to the west of I-75, which puts I-85 out of the Interstate grid.
U.S. Route 80 or U.S. Highway 80 (US 80) is a major east-west United States Numbered Highway in the Southern United States, much of which was once part of the early auto trail known as the Dixie Overland Highway. As the "0" in the route number indicates, it was originally a cross-country route, from the Pacific Ocean to the Atlantic Ocean. Its original western terminus was at Historic US 101 in San Diego, California. However, the entire segment west of Dallas, Texas, has been decommissioned in favor of various Interstate Highways and state highways. Currently, the highway's western terminus is at an interchange with Interstate 30 (I-30) on the Dallas–Mesquite, Texas city line. Its eastern terminus is in Tybee Island, Georgia near the Atlantic Ocean. Between Jonesville, Texas and Kewanee, Mississippi, US 80 runs parallel to or concurrently with Interstate 20. It also currently runs through Dallas, Texas; Shreveport, Louisiana; Jackson, Mississippi; Montgomery, Alabama; Columbus, Georgia; Macon, Georgia; and Savannah, Georgia.
U.S. Route 29 is a north–south United States highway that runs for 1,036 miles (1,667 km) from Pensacola, Florida to the western suburbs of Baltimore, Maryland in the Southern United States, connecting the Florida Panhandle to the Baltimore-Washington metropolitan area. This highway takes on an overall northeast path, from its southern terminus at US 90 and US 98 in Pensacola, Florida to its northern terminus at Maryland Route 99 in Ellicott City, Maryland.
Interstate 485 (I-485) is a 67.6-mile (108.8 km) long Interstate Highway beltway encircling Charlotte, North Carolina. As a complete loop, it is primarily signed with "inner" and "outer" designations, though at some major interchanges, supplemental signage reflects the local compass orientation of the road. The entire route lies within Mecklenburg County.
Interstate 14 (I-14), also known as the "14th Amendment Highway", the Gulf Coast Strategic Highway, and the Central Texas Corridor, is an Interstate Highway that is currently located entirely in Central Texas, following U.S. Route 190 (US 190). The portion of the route that has been constructed and signed to date, the Central Texas Corridor along US 190 west of Interstate 35 was officially designated as I-14 by the Fixing America's Surface Transportation Act (FAST) Act, signed by President Barack Obama on December 14, 2015.
Interstate 285 (I-285) in the U.S. state of North Carolina is the designation for a freeway connecting the cities of Lexington and Winston-Salem. The route was approved in February 2018 and was first signed in November 2018. An auxiliary route of Interstate 85, it branches off of its parent route and runs northeast, bypassing central Lexington, before turning due north and heading towards Winston-Salem, terminating at an interchange with I-40. I-285 is co-signed with U.S. Route 52 (US 52) for its entire route, and as of November 2018, still uses US 52 mile markers and exit numbers. Other routes co-signed along parts of the route include I-85 Business, US 29, US 70, and NC 8. I-285 has been approved for an extension along the US 52 freeway through Winston-Salem to meet the future Winston-Salem Northern Beltway.
Interstate 85 (I-85) is a major Interstate Highway that travels northeast-to-southwest in the U.S. state of Georgia. It enters the state at the Alabama state line near West Point, and Lanett, Alabama, traveling through the Atlanta metropolitan area and to the South Carolina state line, where it crosses the Savannah River near Lake Hartwell. I-85 connects northern Georgia with Montgomery, Alabama, to the southwest, and with South Carolina, North Carolina, and Virginia to the northeast. Within Georgia, I-85 is also designated as the unsigned State Route 403 (SR 403).
Interstate 85 Business is a business loop of the Interstate Highway System. It is entirely a freeway running along the old route of I-85 in the vicinity of Spartanburg, South Carolina, United States. It is the only freeway to connect with Interstate 585, which is now an isolated piece of the Interstate Highway System.
North Carolina Highway 147 (NC 147) is a North Carolina state highway. The route is an 8.1-mile-long (13.0 km) freeway that connects the city of Durham with both the Research Triangle Park (RTP) and Western Wake County. NC 147 is the northern half of the Durham Freeway, which continues south onto I-885. The route is the main arterial through Durham, running alongside its downtown. It begins at a semi-directional T interchange with I-885 southeast of downtown Durham and runs northwest-southeast before merging into I-85 northwest of downtown Durham.
Interstate 74 (I-74) is a partially completed part of the Interstate Highway System that will eventually run from Davenport, Iowa, to Myrtle Beach, South Carolina. In the US state of North Carolina, I-74 currently exists in three distinct segments; from I-77 at the Virginia state line to U.S. Highway 52 (US 52) near Mount Airy, from I-40 in Winston-Salem to US 220 near Ellerbe, and from US 74 and US 74 Business near Maxton to US 74/North Carolina Highway 41 (NC 41) near Lumberton. I-74 has an extensive concurrency with I-73 from Randleman to Ellerbe in the Piedmont. When completed, I-74 will link the cities of Mount Airy, Winston-Salem, High Point, Rockingham, Laurinburg, and Lumberton.
Interstate 85 (I-85) is an Interstate highway that runs from Montgomery, Alabama to Richmond, Virginia. In North Carolina, I-85 travels 234.6 miles (377.6 km) from the South Carolina state line near Grover, North Carolina to the Virginia state line near Wise. Despite being signed north–south, I-85 physically travels in a southwest-northeast direction across the state. The Interstate highway connects the three most populous metropolitan areas of North Carolina, Metrolina, Piedmont Triad, and Research Triangle, as well as nine of the twenty largest municipalities in the state. Outside of North Carolina, I-85 connects the state with Richmond, Virginia to the north, and Upstate South Carolina and Atlanta, Georgia to the south. I-85 parallels several U.S. Highways including US 29 between South Carolina and Greensboro, US 70 between Greensboro and Durham, and US 15 between Durham and Oxford, and US 1 between Henderson and Virginia.
Interstate 85 (I-85) is a part of the Interstate Highway System that runs from Montgomery, Alabama, to Petersburg, Virginia. In Alabama, the Interstate Highway runs 80.008 miles (128.760 km) from I-65 in Montgomery northeast to the Georgia state line near Valley. I-85 is the primary highway between Montgomery and Atlanta. The Interstate also connects Montgomery with Tuskegee, Auburn, Opelika, and, indirectly, Phenix City and Columbus, Georgia.
U.S. Route 421 (US 421) is part of the United States Numbered Highway System that runs from Fort Fisher, North Carolina to Michigan City, Indiana. In the U.S. state of North Carolina, US 421 travels 328 miles (528 km) from its southern terminus at Fort Fisher to the Tennessee state line near the community of Zionville, North Carolina. US 421 traverses the state from east to west travelling from the coastal plains to Appalachian Mountains. It provides an important connection between the cities of Wilmington, Sanford, Greensboro, Winston-Salem, and Boone. Despite being signed as north-south, much of the routing of US 421 in North Carolina runs in an east-west direction, particularly between Greensboro and the Tennessee state line. Portions of US 421 have been upgraded to freeway standards including the majority of its routing between Sanford and North Wilkesboro.
U.S. Route 52 (US 52) is a north–south United States highway that runs for 150 miles (240 km) from the South Carolina state line, near McFarlan, to the Virginia state line, near Mount Airy. It serves as a strategic highway through the central North Carolina Piedmont. Because of its alignment in the state, US 52 does not follow the standard convention of an even U.S. route number going east–west.
Interstate 87 (I-87) is a partially completed Interstate Highway in the U.S. state of North Carolina, the shortest designated primary Interstate Highway at 12.9 miles (20.8 km). The completed portion is in eastern Wake County, between Raleigh and Wendell; the majority of the completed route is known as the Knightdale Bypass, while the remaining 3 miles (4.8 km) follows the Raleigh Beltline. It is planned to continue northeast through Rocky Mount, Williamston and Elizabeth City, ending in Norfolk, Virginia. It is signed as north-south, in keeping with the sign convention for most odd-numbered interstates, but the route goes primarily east-west, with the eastern direction aligning to the north designation. The entire route is concurrent with US 64, with portions also concurrent with I-440 and US 264.
Interstate 885 (I-885) and North Carolina Highway 885 (NC 885) is an 11.5-mile (18.5 km) auxiliary Interstate Highway and state highway in the U.S. state of North Carolina. It links North Carolina Highway 540 (NC 540) and Interstate 40 (I-40) to Interstate 85 (I-85) in the Durham area. The route consisted of two preexisting segments of freeway—North Carolina Highway 147 (NC 147) to the south and U.S. Route 70 (US 70) to the north—connected by the East End Connector, which opened to traffic on June 30, 2022.
