Johnson Lake Dam is an earth dam located in Duplin County, North Carolina, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 17 ft17 ft tall and 1,560 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
The primary purpose of Johnson Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Robert C Johnson (private). It impounds the Maxwell Creek near Chinquapin.
The dam stands 17 feet tall and stretches 1,560 feet across, and has a maximum storage capacity of 110 acre-feet. Completed in 1966, the structure is well into its service life at over 50 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. The most recent inspection on record was 10/06/2015. That was over 11 years ago.
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Location
| State | North Carolina |
| County | Duplin |
| Nearest City | Chinquapin |
| River/Stream | Maxwell Creek |
| Coordinates | 34.86440, -78.04480 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Length | 1,560 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Max Discharge | 33 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Robert C Johnson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/06/2015 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC01160 |
| Federal ID | NC01160 |
| More Info | State Dam Safety Program |