Bayou Desiard Dam
Bayou Desiard Dam is an earth dam located in Ouachita Parish, Louisiana, built in 1933. It carries a Significant hazard potential classification and has a fair condition assessment.
About Bayou Desiard Dam
The primary purpose of Bayou Desiard Dam 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 City Of Monroe (local government). It impounds the Bayou De Siard near Monroe.
The dam stands 39 feet tall and stretches 450 feet across, creates a reservoir covering 600 acres, has a maximum storage capacity of 4,870 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 1933, the structure is well-established, with more than 75 years of service.
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 05/24/2024.
At 39 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Louisiana |
| County | Ouachita |
| Nearest City | Monroe |
| River/Stream | Bayou De Siard |
| Coordinates | 32.55416, -92.11900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 450 ft |
| Year Completed | 1933 (93 years old) |
Storage & Hydraulics
| NID Storage | 4,870 acre-ft |
| Max Storage | 4,870 acre-ft |
| Normal Storage | 4,370 acre-ft |
| Surface Area | 600 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 500 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Monroe |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/24/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | LA00265 |
| Federal ID | LA00265 |
| More Info | State Dam Safety Program |