Johnson Swine Waste Lagoon Dam is an earth dam located in Surry County, North Carolina, built in 1996. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 41 ft41 ft tall and 780 ft long, taller than 87% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Johnson Swine Waste Lagoon Dam
Johnson Swine Waste Lagoon Dam is a dam in Surry, North Carolina. The dam is owned by Cundiff Creek Farms, LLC (private). It impounds the Candiff Creek.
The dam stands 41 feet tall and stretches 780 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1996, the structure is 30 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. The most recent inspection on record was 02/11/2025.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | North Carolina |
| County | Surry |
| River/Stream | Candiff Creek |
| Coordinates | 36.29230, -80.58720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Length | 780 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | Cundiff Creek Farms, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 02/11/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC05405 |
| Federal ID | NC05405 |
| More Info | State Dam Safety Program |