Cains Millpond Dam
Cains Millpond Dam is a dam located in Sumter County, South Carolina, built in 1850. It carries a Significant hazard potential classification.
About Cains Millpond Dam
The primary purpose of Cains Millpond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Cains Mill Corp (private). It impounds the Nasty Branch.
The dam stands 9 feet tall, creates a reservoir covering 117 acres, and has a maximum storage capacity of 550 acre-feet. Completed in 1850, the structure is one of the older dams in the region, with over a century and a half 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. An emergency action plan is in place for this dam. The most recent inspection on record was 05/26/2022.
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Location
| State | South Carolina |
| County | Sumter |
| River/Stream | Nasty Branch |
| Coordinates | 33.86120, -80.39730 |
Physical Characteristics
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Year Completed | 1850 (176 years old) |
Storage & Hydraulics
| NID Storage | 550 acre-ft |
| Max Storage | 550 acre-ft |
| Normal Storage | 375 acre-ft |
| Surface Area | 117 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | CAINS MILL CORP |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 05/26/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | SCD01578 |
| Federal ID | SCD01578 |
| More Info | State Dam Safety Program |