Langdale
Langdale is a masonry dam located in Harris County, Georgia, built in 1924. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Langdale
The primary purpose of Langdale is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Georgia Power Company (public utility). It impounds the Chattahoochee near Valley, Al.
The dam stands 150 feet tall and stretches 1,362 feet across, creates a reservoir covering 270 acres, has a maximum storage capacity of 2,646 acre-feet, and collects water from a drainage area of 3,630 square miles. Completed in 1924, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/17/2022.
At 150 feet, this dam is taller than 99% of all dams in the United States.
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Location
| State | Georgia |
| County | Harris |
| Nearest City | Valley, Al |
| River/Stream | Chattahoochee |
| Coordinates | 32.81420, -85.16780 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 150 ft |
| Dam Height | 15 ft |
| Dam Length | 1,362 ft |
| Year Completed | 1924 (102 years old) |
Storage & Hydraulics
| NID Storage | 2,646 acre-ft |
| Max Storage | 2,646 acre-ft |
| Normal Storage | 2,646 acre-ft |
| Surface Area | 270 acres |
| Drainage Area | 3,630 sq mi |
| Max Discharge | 142,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Georgia Power Company |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/17/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA00870 |
| Federal ID | GA00870 |
| More Info | State Dam Safety Program |