Ammons Roadgrade Structure
Key Takeaway
Ammons Roadgrade Structure is classified as low hazard in Iowa. It was completed in 2004 and is 22 years old. Its primary use is grade stabilization.
Physical Details
| Dam Height | 30 ft (taller than 48.2% in IA) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 120 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 2004 (22 years old) |
| NID ID | IA03740 |
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
Monroe County
Local Government
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What is the hazard classification of Ammons Roadgrade Structure?
Ammons Roadgrade Structure 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 Ammons Roadgrade Structure?
Ammons Roadgrade Structure is owned by Monroe County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ammons Roadgrade Structure built?
Ammons Roadgrade Structure was completed in 2004, making it 22 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 Ammons Roadgrade Structure?
Ammons Roadgrade Structure serves the following purposes: Grade Stabilization. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ammons Roadgrade Structure?
Ammons Roadgrade Structure has a dam height of 30 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.