Grand Bayou Reservoir
Grand Bayou Reservoir is an earth dam located in Red River Parish, Louisiana, built in 1994. It carries a High hazard potential classification and has a fair condition assessment.
About Grand Bayou Reservoir
The primary purpose of Grand Bayou Reservoir is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Grand Bayou Reservoir Commission (local government). It impounds the Grand Bayou near Campti.
The dam stands 54 feet tall and stretches 5,800 feet across, creates a reservoir covering 2,700 acres, has a maximum storage capacity of 66,000 acre-feet, and collects water from a drainage area of 134 square miles. Completed in 1994, the structure is 32 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 10/22/2024.
At 54 feet, this dam is taller than 94% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Louisiana dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Louisiana |
| County | Red River |
| Nearest City | Campti |
| River/Stream | Grand Bayou |
| Coordinates | 31.99894, -93.21333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 54 ft |
| Dam Height | 36 ft |
| Dam Length | 5,800 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 66,000 acre-ft |
| Max Storage | 66,000 acre-ft |
| Normal Storage | 27,000 acre-ft |
| Surface Area | 2,700 acres |
| Drainage Area | 134 sq mi |
| Max Discharge | 32,683 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Grand Bayou Reservoir Commission |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/22/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | LA00387 |
| Federal ID | LA00387 |
| More Info | State Dam Safety Program |