Des Moines-Waterworks Dam
Key Takeaway
Des Moines-Waterworks Dam is classified as low hazard in Iowa. It was completed in 1923 and is 103 years old. Its primary use is water supply.
Physical Details
| Dam Height | 7 ft |
| Dam Length | 220 ft |
| Dam Type | Gravity |
| Max Storage | 667 acre-ft |
| Normal Storage | 327 acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 3,629 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1923 (103 years old) |
| NID ID | IA01817 |
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
Des Moines Water Works
Public Utility
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Des Moines-Waterworks Dam?
Des Moines-Waterworks 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 Des Moines-Waterworks Dam?
Des Moines-Waterworks Dam is owned by Des Moines Water Works (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Des Moines-Waterworks Dam built?
Des Moines-Waterworks Dam was completed in 1923, making it 103 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 Des Moines-Waterworks Dam?
Des Moines-Waterworks Dam serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Des Moines-Waterworks Dam?
Des Moines-Waterworks Dam has a dam height of 7 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 Des Moines-Waterworks Dam last inspected?
Des Moines-Waterworks Dam was last inspected on November 16, 1988. Inspection dates indicate when a formal review occurred, not the results of that inspection.