Twin Lakes Upper Dam
Twin Lakes Upper Dam is a dam located in Edgefield County, South Carolina, built in 1948. It carries a Significant hazard potential classification and has a fair condition assessment.
About Twin Lakes Upper Dam
The primary purpose of Twin Lakes Upper Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Christopher Cruz;jsmg Development Llc (private). It impounds the Tr-little Horse Creek.
The dam stands 17 feet tall, creates a reservoir covering 11 acres, and has a maximum storage capacity of 147 acre-feet. Completed in 1948, the structure is well-established, with more than 75 years of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 12/20/2023.
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Location
| State | South Carolina |
| County | Edgefield |
| River/Stream | Tr-little Horse Creek |
| Coordinates | 33.64680, -81.87480 |
Physical Characteristics
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 147 acre-ft |
| Max Storage | 147 acre-ft |
| Normal Storage | 89 acre-ft |
| Surface Area | 11 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | CHRISTOPHER CRUZ;JSMG DEVELOPMENT LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | SCD00867 |
| Federal ID | SCD00867 |
| More Info | State Dam Safety Program |