Big Sand Watershed Structure Y-32-18 Dam is an earth dam located in Carroll County, Mississippi, built in 1965. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 41 ft41 ft tall, taller than 87% 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 Big Sand Watershed Structure Y-32-18 Dam
The primary purpose of Big Sand Watershed Structure Y-32-18 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.
The dam stands 41 feet tall, has a maximum storage capacity of 1,573 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1965, 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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 12/13/2022.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Mississippi |
| County | Carroll |
| Nearest City | Greenwood City Center |
| Coordinates | 33.59739, -90.03135 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 1,573 acre-ft |
| Max Storage | 1,573 acre-ft |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 12/13/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS01066 |
| Federal ID | MS01066 |
| More Info | State Dam Safety Program |