Alabama State Route 1

U.S. Route 431
State Route 1
Route information
Maintained by ALDOT
Length:	352.958 mi (568.031 km)
Existed:	1954 – present
Major junctions
South end:	US 231 / US 231 Bus. / US 431 Bus. / SR 1 / SR 210 in Dothan
	US 280 in Phenix City US 80 in Phenix City I‑85 / US 29 in Opelika I‑20 east of Oxford US 278 in Gadsden US 411 in Gadsden I‑59 in Attalla US 231 in Huntsville I‑565 / US 72 Alt. in Huntsville US 72 in Huntsville
North end:	US 231 / US 431 towards Fayetteville, TN
Location
Counties:	Houston, Henry, Barbour, Russell, Lee, Chambers, Randolph, Cleburne, Calhoun, Etowah, Marshall, Madison
Highway system
United States Numbered Highway System List Special Divided Replaced Alabama Highways Interstate US State ← US 411 I‑459 → ← SR 959 SR 2 →

U.S. Highway 431 (US-431), internally designated by the Alabama Department of Transportation as State Route 1 (SR-1), is a major north–south state highway across the eastern part of the U.S. state of Alabama. Although US-431's south end is in Dothan, SR-1 continues south for about 13 miles (21 km) along US-231 to the Florida state line.

State Route 1 is primarily the unsigned partner route assigned to U.S. Highway 431. The two routes are co-aligned from the southern terminus of US-431 at Dothan to the Tennessee state line. South of Dothan, State Route 1 is assigned to U.S. Highway 231. The two highways run north from Dothan through the Wiregrass region of southeastern Alabama through the towns of Headland and Abbeville en route to Eufaula, where it intersects U.S. Route 82. North of Eufaula, en route to Phenix City, the highway encounters some of the most sparsely populated parts of the state, only passing near the unincorporated communities of Pittsview, Glenville, and Seale in the 46 mile (74 km) drive between the two cities. In Phenix City, the highway junctions with U.S. Route 280 and U.S. Route 80. North of Phenix City, en route to Opelika, US 431 and US 280 join together for a concurrency, passing through the cities of Smiths Station and Salem on the way into Opelika. In Opelika, the two highways cross Interstate 85 and split in Opelika; US 431 continuing northeastward and US 280 northwestward. North of Opelika, the highway encounters rural terrain again, passing through the cities of LaFayette, Roanoke, and Wedowee en route to Anniston. In Oxford, just south of Anniston, the highway intersects Interstate 20, joining I-20 for an approximately three-mile concurrency, after which it goes through Anniston, northward into Gadsden, where it joins with US-278, crosses Interstate 59, and shares a brief wrong-way concurrency with US-11 in nearby Attalla, after which it continues northwestward, splitting from US-278 northwest of Attalla and later passing through Guntersville en route to Huntsville. In Huntsville, US-231 and US-431 (Governors Drive) junction again as Memorial Parkway, and State Route 1 is partnered with both U.S. Highways until they cross into Tennessee.

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Wikipedia