Porter Dam
Key Takeaway
Porter Dam is classified as high hazard in Missouri. It was completed in 1967 and is 59 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 23 ft (taller than 18% in MO) |
| Dam Type | Earth |
| Max Storage | 234 acre-ft |
| Normal Storage | 108 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 620 sq mi |
| Year Completed | 1967 (59 years old) |
| NID ID | MO30310 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
R PORTER C/O JANET CLARK
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Porter Dam?
Porter Dam is classified as High Hazard. Loss of human life is likely if the dam fails. 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 R PORTER C/O JANET CLARK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Porter Dam built?
Porter Dam was completed in 1967, making it 59 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 23 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.