Old Water Supply Lake Dam
Key Takeaway
Old Water Supply Lake Dam is classified as significant hazard in Arkansas. It was completed in 1932 and is 94 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 15% in AR) |
| Dam Length | 356 ft |
| Dam Type | Earth |
| Max Storage | 400 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 256 cfs |
| Year Completed | 1932 (94 years old) |
| NID ID | AR00404 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF CHARLESTON
Local Government
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Low HazardFrequently Asked Questions
What is the hazard classification of Old Water Supply Lake Dam?
Old Water Supply Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Old Water Supply Lake Dam?
Old Water Supply Lake Dam is owned by CITY OF CHARLESTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Old Water Supply Lake Dam built?
Old Water Supply Lake Dam was completed in 1932, making it 94 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 Old Water Supply Lake Dam?
Old Water Supply Lake Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Old Water Supply Lake Dam?
Old Water Supply Lake Dam has a dam height of 18 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 Old Water Supply Lake Dam last inspected?
Old Water Supply Lake Dam was last inspected on March 23, 1995. Inspection dates indicate when a formal review occurred, not the results of that inspection.