Williamson Pond Dam
Key Takeaway
Williamson Pond Dam is classified as low hazard in Iowa. It was completed in 1915 and is 111 years old. Its primary use is recreation.
Physical Details
| Dam Height | 32 ft (taller than 58.4% in IA) |
| Dam Length | 575 ft |
| Dam Type | Earth |
| Max Storage | 484 acre-ft |
| Normal Storage | 223 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1915 (111 years old) |
| NID ID | IA01296 |
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
Iowa Department of Natural Resources
State Government
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Low Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Williamson Pond Dam?
Williamson Pond 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 Williamson Pond Dam?
Williamson Pond Dam is owned by Iowa Department of Natural Resources (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Williamson Pond Dam built?
Williamson Pond Dam was completed in 1915, making it 111 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 Williamson Pond Dam?
Williamson Pond 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 Williamson Pond Dam?
Williamson Pond Dam has a dam height of 32 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 Williamson Pond Dam last inspected?
Williamson Pond Dam was last inspected on October 11, 1989. Inspection dates indicate when a formal review occurred, not the results of that inspection.