Johnny Martin Dam
Key Takeaway
Johnny Martin Dam is classified as low hazard in Louisiana. Its primary use is recreation.
Physical Details
| Dam Height | 15 ft (taller than 33.1% in LA) |
| Dam Length | 590 ft |
| Dam Type | Earth |
| Max Storage | 113 acre-ft |
| Normal Storage | 98 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 700 cfs |
| Year Modified | 2014 |
| NID ID | LA00522 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
John K. Martin, Jr.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Johnny Martin Dam?
Johnny Martin Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Johnny Martin Dam?
Johnny Martin Dam is owned by John K. Martin, Jr. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Johnny Martin Dam?
Johnny Martin Dam 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 Johnny Martin Dam?
Johnny Martin Dam has a dam height of 15 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 Johnny Martin Dam last inspected?
Johnny Martin Dam was last inspected on September 12, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.