Frank Riley Dam
Key Takeaway
Frank Riley Dam is classified as low hazard in Iowa. It was completed in 2017 and is 9 years old. Its primary use is grade stabilization.
Physical Details
| Dam Height | 32 ft (taller than 58.4% in IA) |
| Dam Length | 392 ft |
| Dam Type | Earth |
| Max Storage | 32 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 142 cfs |
| Year Completed | 2017 (9 years old) |
| NID ID | IA04301 |
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
Frank Riley
Private
Nearby Dams
Pleasant Dam
Clarke, IA
Low Hazard 43 ftGrade Lake Dam
Clarke, IA
High Hazard 44 ftEast Lake Dam
Clarke, IA
Significant Hazard 41 ftShort Dam
Clarke, IA
Low Hazard 35 ftIowa Noname7
Clarke, IA
Low Hazard 26 ftPaul Graves Dam
Clarke, IA
Low Hazard 28 ftKlinker Dam
Clarke, IA
Low Hazard 29 ftArbor Valley Lake Dam
Clarke, IA
High Hazard 58 ftFrequently Asked Questions
What is the hazard classification of Frank Riley Dam?
Frank Riley Dam 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 Frank Riley Dam?
Frank Riley Dam is owned by Frank Riley (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Frank Riley Dam built?
Frank Riley Dam was completed in 2017, making it 9 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 Frank Riley Dam?
Frank Riley Dam serves the following purposes: Grade Stabilization, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Frank Riley Dam?
Frank Riley Dam has a dam height of 32 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.