Willow Lake Dam
Willow Lake Dam is an earth dam located in De Soto Parish, Louisiana, built in 1955. It carries a Low hazard potential classification and has a fair condition assessment.
About Willow Lake Dam
The primary purpose of Willow Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Durban Llc. (private). It impounds the Tr-bayou Na Banchasse near Mansfield.
The dam stands 40 feet tall and stretches 1,095 feet across, creates a reservoir covering 76 acres, has a maximum storage capacity of 1,228 acre-feet, and collects water from a drainage area of 2,026 square miles. Completed in 1955, 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 03/24/2021.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Louisiana |
| County | De Soto |
| Nearest City | Mansfield |
| River/Stream | Tr-bayou Na Banchasse |
| Coordinates | 32.09200, -93.73800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 1,095 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 1,228 acre-ft |
| Max Storage | 1,228 acre-ft |
| Normal Storage | 1,083 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 2,026 sq mi |
| Max Discharge | 91 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Durban LLC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 03/24/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00485 |
| Federal ID | LA00485 |
| More Info | State Dam Safety Program |