Upper Little Black Watershed Dam D- 1
Key Takeaway
Upper Little Black Watershed Dam D- 1 is classified as low hazard in Missouri. It was completed in 1986 and is 40 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 33 ft (taller than 79.3% in MO) |
| Dam Length | 760 ft |
| Dam Type | Earth |
| Max Storage | 785 acre-ft |
| Normal Storage | 179 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 145 sq mi |
| Max Discharge | 832 cfs |
| Year Completed | 1986 (40 years old) |
| NID ID | MO50441 |
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
UPPER L BLCK WTSH SUBDIS
Local Government
Nearby Dams
Upper Little Black D-2
Ripley, MO
High Hazard 73 ftUpper 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 A-2
Ripley, MO
High Hazard 60 ftUpper Little Black D-8 Dam
Ripley, MO
High Hazard 38 ftUpper Little Black Watershed Dam D- 7
Ripley, MO
Low Hazard 35 ftMallard Lake
Ripley, MO
Low Hazard 15 ftUpper Little Black D-5 Dam
Ripley, MO
Low Hazard 39 ftFrequently Asked Questions
What is the hazard classification of Upper Little Black Watershed Dam D- 1?
Upper Little Black Watershed Dam D- 1 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 Upper Little Black Watershed Dam D- 1?
Upper Little Black Watershed Dam D- 1 is owned by UPPER L BLCK WTSH SUBDIS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Little Black Watershed Dam D- 1 built?
Upper Little Black Watershed Dam D- 1 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 Watershed Dam D- 1?
Upper Little Black Watershed Dam D- 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 Upper Little Black Watershed Dam D- 1?
Upper Little Black Watershed Dam D- 1 has a dam height of 33 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.