J a Moss Dam is a dam located in Orangeburg County, South Carolina, built in 1875. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 16 ft16 ft tall. 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 J a Moss Dam
The primary purpose of J a Moss Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ellen L Moss Westfall, Ellen Legare Westfall, and Richard O Westfall Jr Trustees (private). It impounds the Great Branch.
The dam stands 16 feet tall, creates a reservoir covering 32 acres, and has a maximum storage capacity of 241 acre-feet. Completed in 1875, the structure is one of the older dams in the region, with over a century and a half of service.
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 07/28/2017.
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Location
| State | South Carolina |
| County | Orangeburg |
| River/Stream | Great Branch |
| Coordinates | 33.51880, -80.95930 |
Physical Characteristics
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Year Completed | 1875 (151 years old) |
Storage & Hydraulics
| NID Storage | 241 acre-ft |
| Max Storage | 241 acre-ft |
| Normal Storage | 114 acre-ft |
| Surface Area | 32 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | Ellen L Moss Westfall, Ellen Legare Westfall, and Richard O Westfall Jr Trustees |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 07/28/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SCD03736 |
| Federal ID | SCD03736 |
| More Info | State Dam Safety Program |