Big Coldstream Dam
Big Coldstream Dam is a dam located in Lexington County, South Carolina, built in 1974. It carries a Significant hazard potential classification and has a fair condition assessment.
About Big Coldstream Dam
The primary purpose of Big Coldstream Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Carol Griffith;lexington County;michael Shoemaker (local government). It impounds the Rawls Creek.
The dam stands 18 feet tall, creates a reservoir covering 8 acres, and has a maximum storage capacity of 197 acre-feet. Completed in 1974, 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 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 10/26/2022.
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Location
| State | South Carolina |
| County | Lexington |
| River/Stream | Rawls Creek |
| Coordinates | 34.05700, -81.19120 |
Physical Characteristics
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 197 acre-ft |
| Max Storage | 197 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 8 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner | CAROL GRIFFITH;LEXINGTON COUNTY;MICHAEL SHOEMAKER |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/26/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | SCD00020 |
| Federal ID | SCD00020 |
| More Info | State Dam Safety Program |