Hardwater Lake is an earth dam located in Grant Parish, Louisiana, built in 1970. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 5,750 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Hardwater Lake
The primary purpose of Hardwater Lake 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 (state).
The dam stands 10 feet tall and stretches 5,750 feet across, creates a reservoir covering 513 acres, has a maximum storage capacity of 5,130 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1970, 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. The most recent inspection on record was 11/11/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Louisiana |
| County | Grant |
| Nearest City | Pollock |
| Coordinates | 31.50953, -92.28024 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 6 ft |
| Dam Length | 5,750 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 5,130 acre-ft |
| Max Storage | 5,130 acre-ft |
| Normal Storage | 2,052 acre-ft |
| Surface Area | 513 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,293 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | State of Louisiana |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/11/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00739 |
| Federal ID | LA00739 |
| More Info | State Dam Safety Program |