Johnson Lake Dam is an earth dam located in Orange County, North Carolina, built in 1955. It carries a Significant hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 110 ft long. 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 Lake Dam
Johnson Lake Dam is a dam in Orange, North Carolina. The dam is owned by Town of Hillsborough (local government). It impounds the Eno River.
The dam stands 15 feet tall and stretches 110 feet across, and collects water from a drainage area of 59 square miles. Completed in 1955, 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. The most recent inspection on record was 04/14/2004. That was over 22 years ago.
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Location
| State | North Carolina |
| County | Orange |
| River/Stream | Eno River |
| Coordinates | 36.07100, -79.13040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 110 ft |
| Year Completed | 1955 (71 years old) |
Ownership & Safety
| Purpose | Other |
| Owner | Town of Hillsborough |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 04/14/2004 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC00774 |
| Federal ID | NC00774 |
| More Info | State Dam Safety Program |