Black Watershed Structure Y-36-25 Dam is an earth dam located in Holmes County, Mississippi, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 540 ft long, taller than 50% 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 Black Watershed Structure Y-36-25 Dam
The primary purpose of Black Watershed Structure Y-36-25 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 owned by Black Creek Drainage District (local government). It impounds the Unt of Black Creek.
The dam stands 25 feet tall and stretches 540 feet across, has a maximum storage capacity of 282 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, the structure is well into its service life at over 50 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.
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Location
| State | Mississippi |
| County | Holmes |
| River/Stream | Unt of Black Creek |
| Coordinates | 33.13174, -90.13241 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 540 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 282 acre-ft |
| Max Storage | 282 acre-ft |
| Normal Storage | 75 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 470 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Black Creek Drainage District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS00086 |
| Federal ID | MS00086 |
| More Info | State Dam Safety Program |