Marion County Roadgrade Dam 25-76-19
Key Takeaway
Marion County Roadgrade Dam 25-76-19 is classified as low hazard in Iowa. It was completed in 1964 and is 62 years old. Its primary use is other.
Physical Details
| Dam Height | 47 ft (taller than 93.3% in IA) |
| Dam Length | 1,300 ft |
| Dam Type | Earth |
| Max Storage | 562 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | IA00660 |
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
Marion County Board of Supervisors
Local Government
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Low Hazard 44 ftFrequently Asked Questions
What is the hazard classification of Marion County Roadgrade Dam 25-76-19?
Marion County Roadgrade Dam 25-76-19 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 Marion County Roadgrade Dam 25-76-19?
Marion County Roadgrade Dam 25-76-19 is owned by Marion County Board of Supervisors (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Marion County Roadgrade Dam 25-76-19 built?
Marion County Roadgrade Dam 25-76-19 was completed in 1964, making it 62 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 Marion County Roadgrade Dam 25-76-19?
Marion County Roadgrade Dam 25-76-19 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Marion County Roadgrade Dam 25-76-19?
Marion County Roadgrade Dam 25-76-19 has a dam height of 47 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 Marion County Roadgrade Dam 25-76-19 last inspected?
Marion County Roadgrade Dam 25-76-19 was last inspected on September 25, 1963. Inspection dates indicate when a formal review occurred, not the results of that inspection.