Longville Lake
Key Takeaway
Longville Lake is classified as high hazard in Louisiana. It was completed in 1950 and is 76 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 9.7% in LA) |
| Dam Length | 2,300 ft |
| Dam Type | Earth |
| Max Storage | 600 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,750 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | LA00238 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
G. Hickman;R.Temple
Private
Nearby Dams
Louis Blankenbacker Dam
Beauregard, LA
Low Hazard 20 ftBrown Lake Dam
Beauregard, LA
Low Hazard 10 ftErin Land Co. Dam
Allen, LA
Low Hazard 8 ftStanford Carter Dam
Beauregard, LA
Low Hazard 20 ftHarper Pond
Beauregard, LA
Low Hazard 9 ftBundick Creek Dam
Beauregard, LA
High Hazard 40 ftCalbeau Lake
Beauregard, LA
Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Longville Lake?
Longville Lake is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Longville Lake?
Longville Lake is owned by G. Hickman;R.Temple (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Longville Lake built?
Longville Lake was completed in 1950, making it 76 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Longville Lake?
Longville Lake serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Longville Lake?
Longville Lake has a dam height of 10 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Longville Lake last inspected?
Longville Lake was last inspected on September 25, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.