U.S. Route 70 (US 70) is an east–west United States highway that runs for 2,385 miles (3,838 km) from eastern North Carolina to east-central Arizona. As can be derived from its number, it is a major east–west highway of the Southern and Southwestern United States. It formerly ran from coast to coast, with the current Eastern terminus near the Atlantic Ocean in North Carolina, and the former Western terminus near the Pacific Ocean in California. Before the completion of the Interstate system, U.S. Highway 70 was sometimes referred to as the "Broadway of America", due to its status as one of the main east–west thoroughfares in the nation.
U.S. 70 begins in Globe at a junction with U.S. Route 60, concurrent with State Route 77. SR 77 splits off east of town. U.S. 70 then enters the San Carlos Apache Indian Reservation and runs southeast for 17 miles (27 km) to Peridot, where it crosses Indian Route 9. It has no other highway junctions until Safford, where it begins a ten-mile (16 km) overlap with U.S. 191. U.S. 70 then runs an additional 37 mi (60 km). (59 km) before crossing into New Mexico east of Franklin.
U.S. Route 70 (abbreviated US-70) is a transcontinental U.S. highway extending from Globe, Arizona to Atlantic, North Carolina. Along the way, 289.81 miles (466.40 km) of its route passes through the state of Oklahoma. Entering the state south of Davidson, the highway serves Oklahoma's southern tier before exiting the state east of Broken Bow. It serves the cities of Ardmore, Durant, Hugo, and Idabel, as well as Tillman, Cotton, Jefferson, Carter, Marshall, Bryan, Choctaw, and McCurtain counties.
US-70 was first established in Oklahoma in 1926. The highway's initial path (which entered the state in Cotton County, further east than it does today) included several deviations from the present-day route, serving Walters and following a more northerly course between Ardmore and Madill. US-70 did not enter Tillman County until 1945. The modern route between Ardmore and Madill was not established until 1984 when it received the US-70 designation.
US-70 enters Oklahoma in Tillman County, crossing the Red River from Texas, concurrent with US-183. The two routes head north into Davidson, where they split; US-183 continues north toward the county seat of Frederick, while US-70 turns due east. It leaves Davidson, passing south of the Hackberry Flat Wildlife Management Area. Approximately 11 1⁄2 miles (18.5 km) east of Davidson, the highway serves as the southern terminus of State Highway 54 (SH-54), which connects US-70 to Hollister. Continuing east from the SH-54 junction, US-70 next enters Grandfield, where it begins a concurrency with SH-36. The two highways proceed east from this junction, leaving Tillman County, US-70 having traveled for 30.78 miles (49.54 km) within its boundaries.
U.S. Route 70 traverses approximately 488 miles (785 km) across North Carolina; from the Tennessee state line, near Hot Springs, to the community of Atlantic, along the Pamlico Sound coastline.
U.S. 70 enters North Carolina on a two-lane road, also signed as U.S. Route 25. The duplex is signed along a divided highway from Marshall to U.S. Route 19 north of Asheville where it splits off from U.S. 25. From here, U.S. 70 parallels Interstate 40. From the town of Ridgecrest at the top of the Blue Ridge, U.S. 70 merges with I-40. It splits from I-40 again at the bottom of the grade at Old Fort, then passing through the towns of Marion, Nebo, Morganton, Hickory, Conover, Statesville and Salisbury, where it changes course and heads northeast.
U.S. 70 parallels Interstate 85 to High Point, sharing a divided highway with U.S. Route 29. The two roads separate in Greensboro, and U.S. Route 70 joins Wendover Avenue out of the city and continues east along the Interstate 40 corridor. Halfway to the Research Triangle, US 70 passes through the major retail district for Burlington. It then becomes a two lane road until it reaches Durham where U.S 70 turns southeast as a divided highway. The road passes straight through downtown Raleigh, before heading back east and away from Interstate 40.