Thomas Mitchell Park Dam
Key Takeaway
Thomas Mitchell Park Dam is classified as significant hazard in Iowa. It was completed in 1971 and is 55 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 27 ft (taller than 30.7% in IA) |
| Dam Length | 711 ft |
| Dam Type | Earth |
| Max Storage | 75 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | IA00901 |
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
Polk County Conservation Board
Local Government
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What is the hazard classification of Thomas Mitchell Park Dam?
Thomas Mitchell Park 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 Thomas Mitchell Park Dam?
Thomas Mitchell Park Dam is owned by Polk County Conservation Board (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thomas Mitchell Park Dam built?
Thomas Mitchell Park Dam was completed in 1971, making it 55 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 Thomas Mitchell Park Dam?
Thomas Mitchell Park 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 Thomas Mitchell Park Dam?
Thomas Mitchell Park Dam has a dam height of 27 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 Thomas Mitchell Park Dam last inspected?
Thomas Mitchell Park Dam was last inspected on July 13, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.