John Long Dam
John Long Dam is a dam located in Newberry County, South Carolina, built in 1990. It carries a Low hazard potential classification and has a fair condition assessment.
About John Long Dam
The primary purpose of John Long Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by John F And Susan E Long Trustees (private). It impounds the Tr-big Beaverdam Creek.
The dam stands 29 feet tall, creates a reservoir covering 12 acres, and has a maximum storage capacity of 175 acre-feet. Completed in 1990, the structure is 36 years old.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 10/04/2017.
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Location
| State | South Carolina |
| County | Newberry |
| River/Stream | Tr-big Beaverdam Creek |
| Coordinates | 34.31540, -81.67340 |
Physical Characteristics
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 175 acre-ft |
| Max Storage | 175 acre-ft |
| Normal Storage | 115 acre-ft |
| Surface Area | 12 acres |
Ownership & Safety
| Purpose | Irrigation |
| Owner | JOHN F AND SUSAN E LONG TRUSTEES |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/04/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SCD04301 |
| Federal ID | SCD04301 |
| More Info | State Dam Safety Program |