Upper Little Black Watershed Dam D- 3
Key Takeaway
Upper Little Black Watershed Dam D- 3 is classified as low hazard in Missouri. It was completed in 1981 and is 45 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 29 ft (taller than 59.6% in MO) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 308 acre-ft |
| Normal Storage | 87 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1,133 sq mi |
| Max Discharge | 486 cfs |
| Year Completed | 1981 (45 years old) |
| NID ID | MO31978 |
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 BLK WTSH SUBDIST
Local Government
Nearby Dams
Upper Little Black D-4 Dam
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Significant Hazard 40 ftUpper Little Black D-8 Dam
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High Hazard 38 ftUpper Little Black Watershed Dam D- 7
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Low Hazard 35 ftUpper Little Black Watershed Dam D- 1
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Low Hazard 33 ftUpper Little Black D-5 Dam
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Low Hazard 39 ftUpper Little Black D-2
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High Hazard 73 ftUpper Little Black Watershed Dam D- 9
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Low Hazard 33 ftUpper Little Black A-2
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High Hazard 60 ftFrequently Asked Questions
What is the hazard classification of Upper Little Black Watershed Dam D- 3?
Upper Little Black Watershed Dam D- 3 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- 3?
Upper Little Black Watershed Dam D- 3 is owned by UPPER L BLK WTSH SUBDIST (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Little Black Watershed Dam D- 3 built?
Upper Little Black Watershed Dam D- 3 was completed in 1981, making it 45 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- 3?
Upper Little Black Watershed Dam D- 3 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- 3?
Upper Little Black Watershed Dam D- 3 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.