Upper Little Black D-5 Dam is an earth dam located in Ripley County, Missouri, built in 1986. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 39 ft39 ft tall and 800 ft long, taller than 85% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Upper Little Black D-5 Dam
The primary purpose of Upper Little Black D-5 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is local government-owned. It impounds the Tr Little Black River near Flatwoods.
The dam stands 39 feet tall and stretches 800 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 521 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1986, the structure is 40 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/18/2019.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Missouri |
| County | Ripley |
| Nearest City | Flatwoods |
| River/Stream | Tr Little Black River |
| Coordinates | 36.69266, -90.63084 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 800 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 521 acre-ft |
| Max Storage | 521 acre-ft |
| Normal Storage | 521 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,082 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/18/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO31854 |
| Federal ID | MO31854 |
| More Info | State Dam Safety Program |