Mayo
Mayo is a gravity dam located in Rockingham County, North Carolina, built in 1898. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mayo
The primary purpose of Mayo is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by H & H Properties (private). It impounds the Mayo near Mayodan.
The dam stands 22 feet tall and stretches 590 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 85 acre-feet, and collects water from a drainage area of 320 square miles. Completed in 1898, the structure is over a century 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 02/22/2023.
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Location
| State | North Carolina |
| County | Rockingham |
| Nearest City | Mayodan |
| River/Stream | Mayo |
| Coordinates | 36.41832, -79.96247 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 22 ft |
| Dam Height | 14 ft |
| Dam Length | 590.5 ft |
| Year Completed | 1898 (128 years old) |
Storage & Hydraulics
| NID Storage | 85 acre-ft |
| Max Storage | 85 acre-ft |
| Normal Storage | 85 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 320 sq mi |
| Max Discharge | 19,789 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | H & H Properties |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NC03907 |
| Federal ID | NC03907 |
| More Info | State Dam Safety Program |