Bayou Dupont No 11
Bayou Dupont No 11 is an earth dam located in Sabine Parish, Louisiana, built in 1959. It carries a Significant hazard potential classification and has a fair condition assessment.
About Bayou Dupont No 11
The primary purpose of Bayou Dupont No 11 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by T. D. Nichols (private). It impounds the Bayou Pedro near Robeline Village.
The dam stands 39 feet tall and stretches 1,373 feet across, creates a reservoir covering 48 acres, has a maximum storage capacity of 1,046 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1959, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 08/15/2023.
At 39 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Louisiana |
| County | Sabine |
| Nearest City | Robeline Village |
| River/Stream | Bayou Pedro |
| Coordinates | 31.62900, -93.38800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 31 ft |
| Dam Length | 1,373 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 1,046 acre-ft |
| Max Storage | 1,046 acre-ft |
| Normal Storage | 337 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,355 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | T. D. Nichols |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/15/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | LA00060 |
| Federal ID | LA00060 |
| More Info | State Dam Safety Program |