Clemons Upper Dam
Clemons Upper Dam is a dam located in Williamsburg County, South Carolina, built in 1955. It carries a Significant hazard potential classification and has a poor condition assessment.
About Clemons Upper Dam
The primary purpose of Clemons Upper Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Pony Acres Llc (private). It impounds the Mcginney Creek.
The dam stands 8 feet tall, creates a reservoir covering 36 acres, and has a maximum storage capacity of 490 acre-feet. Completed in 1955, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/21/2022.
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Location
| State | South Carolina |
| County | Williamsburg |
| River/Stream | Mcginney Creek |
| Coordinates | 33.58150, -79.44040 |
Physical Characteristics
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 490 acre-ft |
| Max Storage | 490 acre-ft |
| Normal Storage | 146 acre-ft |
| Surface Area | 36 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | PONY ACRES LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/21/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | SCD04406 |
| Federal ID | SCD04406 |
| More Info | State Dam Safety Program |