Jimmy Johnston Lake Dam
Key Takeaway
Jimmy Johnston Lake Dam is classified as low hazard in Alabama. It was completed in 1958 and is 68 years old. Its primary use is recreation.
Physical Details
| Dam Length | 375 ft |
| Dam Type | Earth |
| Max Storage | 123 acre-ft |
| Normal Storage | 75 acre-ft |
| Max Discharge | 110 cfs |
| Year Completed | 1958 (68 years old) |
| NID ID | AL01014 |
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
MADISON COUNTY, ALABAMA
Local Government
Nearby Dams
Jimmy Johnston
Madison, AL
Significant Hazard 18 ftMadison County Public Lake Dam
Madison, AL
Low Hazard 35 ftHurricane Creek W/S Dam Site 11
Madison, AL
High Hazard 40 ftBragg Farm Reservoir
Madison, AL
Low Hazard 20 ftMt. Lake Resort
Madison, AL
High Hazard 20 ftChesser
Lincoln, TN
Low HazardFrequently Asked Questions
What is the hazard classification of Jimmy Johnston Lake Dam?
Jimmy Johnston Lake 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 Jimmy Johnston Lake Dam?
Jimmy Johnston Lake Dam is owned by MADISON COUNTY, ALABAMA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jimmy Johnston Lake Dam built?
Jimmy Johnston Lake Dam was completed in 1958, making it 68 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 Jimmy Johnston Lake Dam?
Jimmy Johnston Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.