Nantachie Lake Dam
Nantachie Lake Dam is an earth dam located in Grant Parish, Louisiana, built in 1964. It carries a Low hazard potential classification and has a fair condition assessment.
About Nantachie Lake Dam
The primary purpose of Nantachie Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by State Of Louisiana (local government). It impounds the Nantachie Creek near Aloha.
The dam stands 41 feet tall and stretches 1,150 feet across, creates a reservoir covering 1,580 acres, has a maximum storage capacity of 35,500 acre-feet, and collects water from a drainage area of 84 square miles. Completed in 1964, the structure is well into its service life at over 50 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 08/11/2024.
At 41 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Louisiana |
| County | Grant |
| Nearest City | Aloha |
| River/Stream | Nantachie Creek |
| Coordinates | 31.60339, -92.78428 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 37 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 35,500 acre-ft |
| Max Storage | 35,500 acre-ft |
| Normal Storage | 11,200 acre-ft |
| Surface Area | 1,580 acres |
| Drainage Area | 84 sq mi |
| Max Discharge | 19,600 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | State of Louisiana |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/11/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | LA00025 |
| Federal ID | LA00025 |
| More Info | State Dam Safety Program |