Willis Lake Dam
Key Takeaway
Willis Lake Dam is classified as low hazard in Georgia. It was completed in 1940 and is 86 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 40.1% in GA) |
| Dam Length | 620 ft |
| Dam Type | Earth |
| Max Storage | 142 acre-ft |
| Normal Storage | 91 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 220 sq mi |
| Year Completed | 1940 (86 years old) |
| NID ID | GA02718 |
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
Harris County
Local Government
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Willis Lake Dam?
Willis 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 Willis Lake Dam?
Willis Lake Dam is owned by Harris County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Willis Lake Dam built?
Willis Lake Dam was completed in 1940, making it 86 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 Willis Lake Dam?
Willis 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.
How tall is Willis Lake Dam?
Willis Lake Dam has a dam height of 20 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 Willis Lake Dam last inspected?
Willis Lake Dam was last inspected on December 1, 2007. Inspection dates indicate when a formal review occurred, not the results of that inspection.