Ralston Subwatershed Site M-2
Key Takeaway
Ralston Subwatershed Site M-2 is classified as low hazard in Iowa. It was completed in 1969 and is 57 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 27 ft (taller than 30.7% in IA) |
| Dam Length | 885 ft |
| Dam Type | Earth |
| Max Storage | 108 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | IA00181 |
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
Cherokee County SWCD
Local Government
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What is the hazard classification of Ralston Subwatershed Site M-2?
Ralston Subwatershed Site M-2 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 Ralston Subwatershed Site M-2?
Ralston Subwatershed Site M-2 is owned by Cherokee County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ralston Subwatershed Site M-2 built?
Ralston Subwatershed Site M-2 was completed in 1969, making it 57 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 Ralston Subwatershed Site M-2?
Ralston Subwatershed Site M-2 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ralston Subwatershed Site M-2?
Ralston Subwatershed Site M-2 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.