South Fork Blackwater River Dam A- 1
Key Takeaway
South Fork Blackwater River Dam A- 1 is classified as high hazard in Missouri. It was completed in 1964 and is 62 years old. Its primary use is flood risk reduction. 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 | 29 ft (taller than 59.6% in MO) |
| Dam Length | 960 ft |
| Dam Type | Earth |
| Max Storage | 656 acre-ft |
| Normal Storage | 85 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 2,070 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | MO20020 |
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
SO.FK.BLACKWATER SUB-DIS
Private
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of South Fork Blackwater River Dam A- 1?
South Fork Blackwater River Dam A- 1 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 South Fork Blackwater River Dam A- 1?
South Fork Blackwater River Dam A- 1 is owned by SO.FK.BLACKWATER SUB-DIS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Fork Blackwater River Dam A- 1 built?
South Fork Blackwater River Dam A- 1 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 South Fork Blackwater River Dam A- 1?
South Fork Blackwater River Dam A- 1 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is South Fork Blackwater River Dam A- 1?
South Fork Blackwater River Dam A- 1 has a dam height of 29 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 South Fork Blackwater River Dam A- 1 last inspected?
South Fork Blackwater River Dam A- 1 was last inspected on June 26, 1980. Inspection dates indicate when a formal review occurred, not the results of that inspection.