State Route 10 (SR 10) is a major west–east state highway in the U.S. state of Alabama, running for 230.721 miles (371.309 km) through the southern part of the state. It is the lowest even-numbered route in the state that is not an unsigned partner route assigned to a U.S. Highway. It is also the only signed state route that extends from the Mississippi state line to the Georgia state line. The western terminus of the route is in northwestern Choctaw County near the community of Yantley, where it serves as a continuation of Mississippi Highway 19 (MS 19). The eastern terminus of the route is in Henry County near Shorterville. Once in Georgia, the route is designated as Georgia State Route 37 (SR 37).
SR 10 begins its eastward journey at the Mississippi state line near Lisman, where it continues westward as Mississippi Highway 19. The highway passes through several small towns, including Butler and Sweet Water as it approaches its interchange with U.S. Highway 43 (SR 13) in Dixons Mills.
Alabama State Route 10 Truck (SR 10 Truck) is a truck route of SR 10 around downtown Greenville. The highway runs 5.123 miles (8.245 km) between SR 10 and I-65 on the west side of town to SR 10, and SR 185 Truck east of the community. The truck route allows large vehicles to bypass the roundabout at the county courthouse downtown.
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