Porter Dam
Key Takeaway
Porter Dam is classified as low hazard in Iowa. It was completed in 1955 and is 71 years old. Its primary use is recreation.
Physical Details
| Dam Height | 25 ft (taller than 19.3% in IA) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 51 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1955 (71 years old) |
| NID ID | IA02281 |
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
David Porter
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Porter Dam?
Porter 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 Porter Dam?
Porter Dam is owned by David Porter (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Porter Dam built?
Porter Dam was completed in 1955, making it 71 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 Porter Dam?
Porter Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Porter Dam?
Porter Dam has a dam height of 25 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.