Upper Little Black D-8 Dam
Key Takeaway
Upper Little Black D-8 Dam is classified as high hazard in Missouri. It was completed in 1986 and is 40 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 | 38 ft (taller than 88.1% in MO) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 444 acre-ft |
| Normal Storage | 111 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 947 cfs |
| Year Completed | 1986 (40 years old) |
| Year Modified | 1985 |
| NID ID | MO31861 |
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
Dr. MICHAEL SPEZIA
Local Government
Nearby Dams
Upper Little Black Watershed Dam D- 3
Ripley, MO
Low Hazard 29 ftUpper Little Black D-4 Dam
Ripley, MO
Significant Hazard 40 ftUpper Little Black Watershed Dam D- 7
Ripley, MO
Low Hazard 35 ftUpper Little Black D-5 Dam
Ripley, MO
Low Hazard 39 ftUpper Little Black Watershed Dam D- 9
Butler, MO
Low Hazard 33 ftUpper Little Black Watershed Dam D- 1
Ripley, MO
Low Hazard 33 ftUpper Little Black Watershed Dam A-5
Butler, MO
Low Hazard 34 ftUpper Little Black D-2
Ripley, MO
High Hazard 73 ftFrequently Asked Questions
What is the hazard classification of Upper Little Black D-8 Dam?
Upper Little Black D-8 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 Upper Little Black D-8 Dam?
Upper Little Black D-8 Dam is owned by Dr. MICHAEL SPEZIA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Little Black D-8 Dam built?
Upper Little Black D-8 Dam was completed in 1986, making it 40 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 Upper Little Black D-8 Dam?
Upper Little Black D-8 Dam 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 Upper Little Black D-8 Dam?
Upper Little Black D-8 Dam has a dam height of 38 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 Upper Little Black D-8 Dam last inspected?
Upper Little Black D-8 Dam was last inspected on June 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.