"51.2064"^^ . . . "Martin Dam"@en . "1926Z"^^ . "609.6"^^ . . . "1923Z"^^ . . . "Concrete arch-gravity"@en . "1923" . . "Martin Dam is a concrete arch gravity dam on the Tallapoosa River in Alabama in the United States, about 10 miles (16 km) southwest of Dadeville. Impounding the 40,000-acre (16,000 ha) Lake Martin, the dam was built in the 1920s to provide flood control, hydroelectric power generation and water supply."@en . . "329582.0"^^ .