Greenfield Lake Dam is a concrete dam located in New Hanover County, North Carolina, built in 1800. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 1,200 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Greenfield Lake Dam
The primary purpose of Greenfield Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Wilmington (local government). It impounds the Cape Fear River.
The dam stands 9 feet tall and stretches 1,200 feet across, and has a maximum storage capacity of 200 acre-feet. Completed in 1800, the structure is one of the older dams in the region, with over a century and a half of service.
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 08/09/2024.
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Location
| State | North Carolina |
| County | New Hanover |
| River/Stream | Cape Fear River |
| Coordinates | 34.21240, -77.94500 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 9 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1800 (226 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Max Discharge | 99 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Wilmington |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/09/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC01113 |
| Federal ID | NC01113 |
| More Info | State Dam Safety Program |