Mpd No 21
Key Takeaway
Mpd No 21 is classified as high hazard in Kansas. It was completed in 1983 and is 43 years old. Its primary use is water supply. 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 | 42 ft (taller than 94.1% in KS) |
| Dam Length | 3,400 ft |
| Dam Type | Earth |
| Max Storage | 7.3K acre-ft |
| Normal Storage | 1.5K acre-ft |
| Surface Area | 185 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 17,640 cfs |
| Year Completed | 1983 (43 years old) |
| NID ID | KS05314 |
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
MOLINE, CITY OF
Local Government
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Mpd No 21?
Mpd No 21 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 Mpd No 21?
Mpd No 21 is owned by MOLINE, CITY OF (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mpd No 21 built?
Mpd No 21 was completed in 1983, making it 43 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 Mpd No 21?
Mpd No 21 serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mpd No 21?
Mpd No 21 has a dam height of 42 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 Mpd No 21 last inspected?
Mpd No 21 was last inspected on February 19, 2024. Inspection dates indicate when a formal review occurred, not the results of that inspection.