Twenty-Sixth Street Stormwater Detention Basin
Key Takeaway
Twenty-Sixth Street Stormwater Detention Basin is classified as high hazard in Iowa. It was completed in 2007 and is 19 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 43 ft (taller than 89% in IA) |
| Dam Length | 305 ft |
| Dam Type | Earth |
| Max Storage | 242 acre-ft |
| Normal Storage | 97 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 2007 (19 years old) |
| NID ID | IA03540 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
City of Des Moines
Local Government
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Significant Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Twenty-Sixth Street Stormwater Detention Basin?
Twenty-Sixth Street Stormwater Detention Basin is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Twenty-Sixth Street Stormwater Detention Basin?
Twenty-Sixth Street Stormwater Detention Basin is owned by City of Des Moines (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Twenty-Sixth Street Stormwater Detention Basin built?
Twenty-Sixth Street Stormwater Detention Basin was completed in 2007, making it 19 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 Twenty-Sixth Street Stormwater Detention Basin?
Twenty-Sixth Street Stormwater Detention Basin serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Twenty-Sixth Street Stormwater Detention Basin?
Twenty-Sixth Street Stormwater Detention Basin has a dam height of 43 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 Twenty-Sixth Street Stormwater Detention Basin last inspected?
Twenty-Sixth Street Stormwater Detention Basin was last inspected on May 29, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.