|Current status||Active |
|Type of facility||Conventional Hydro|
|Mode of hydropower generation||Peaking|
|Type of permit||FERC License|
|FERC docket #||P-349|
|FERC project name||Martin Dam|
Ownership and operation
|Owner||Alabama Power Co|
|Owner type||Investor-Owned Utility|
|Year first online (conventional hydro)||1927|
|Transmission or distribution system owner||Alabama Power Co|
Power and generating capacity
|Number of units||4|
|Total capacity from hydraulic turbine-generator units within each plant||210.6 mW|
|Average annual net hydropower generation||308,903.0 mWH|
The Martin Project is located on the Tallapoosa River in Alabama in Tallapoosa, Elmore and Coosa Counties.
The Martin Dam Project includes a dam, powerhouse, impoundment, and recreation facilities, described in more detail below.
The project includes Lake Martin, an approximately 31-mile-long, 41,450-acre reservoir at the maximum full pool elevation of 491 feet mean sea level (msl). Lake Martin is formed by a 2,255-foot-long concrete gravity dam and earth dike section (Martin Dam), which includes a 720-foot-long gated spillway section with 20 vertical lift spillway gates, a 255-foot-long concrete gravity non-overflow section, an approximately 1,000-foot-long earth embankment on the left abutment, and a 280-foot-long concrete gravity intake structure with 12 intake gates fitted with trashracks. There are two, 450-foot-long transmission lines that lead from the powerhouse to the project’s switchyard; and appurtenant facilities include a low auxiliary dam that forms a stilling basin for spillway discharges, and a powerhouse access road.
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