Martin Dam P-349

General information
Waterway	Tallapoosa River
Current status	Active license
Type of facility	Conventional Hydro
Mode of hydropower generation	Peaking
Type of permit	FERC License
FERC information
FERC docket #	P-349
FERC project name	Martin Dam
Permit issued	12/12/15
Permit expiration	11/26/45
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.

Source: FERC

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