Long Creek Watershed Structure Y-11a-14 Dam
Long Creek Watershed Structure Y-11a-14 Dam is an earth dam located in Attala County, Mississippi, built in 1976. It carries a Low hazard potential classification.
About Long Creek Watershed Structure Y-11a-14 Dam
The primary purpose of Long Creek Watershed Structure Y-11a-14 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 Entergy Mississippi, Inc (local government).
The dam stands 26 feet tall, creates a reservoir covering 130 acres, has a maximum storage capacity of 674 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1976, the structure is 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 | Attala |
| Coordinates | 33.01908, -89.72372 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 674 acre-ft |
| Max Storage | 674 acre-ft |
| Normal Storage | 213 acre-ft |
| Surface Area | 130 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ENTERGY MISSISSIPPI, INC |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS02741 |
| Federal ID | MS02741 |
| More Info | State Dam Safety Program |