Sylvania Lake Dam is an earth dam located in Johnston County, North Carolina, built in 1973. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 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 embankment section and the water level is illustrative.
About Sylvania Lake Dam
The primary purpose of Sylvania Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tuscarora Council, Inc. (private). It impounds the Mill Creek.
The dam stands 20 feet tall and stretches 1,200 feet across, has a maximum storage capacity of 190 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, 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 03/10/2000. That was over 26 years ago.
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Location
| State | North Carolina |
| County | Johnston |
| River/Stream | Mill Creek |
| Coordinates | 35.34230, -78.25550 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 190 acre-ft |
| Max Storage | 190 acre-ft |
| Normal Storage | 156 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 165 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Tuscarora Council, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/10/2000 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC00966 |
| Federal ID | NC00966 |
| More Info | State Dam Safety Program |