Lithium Lagoon B Dam is an earth dam located in Gaston County, North Carolina. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 50 ft50 ft tall and 450 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Lithium Lagoon B Dam
Lithium Lagoon B Dam is a dam in Gaston, North Carolina. The dam is owned by Martin Marietta Materials, Inc. (private). It impounds the Long Creek.
The dam stands 50 feet tall and stretches 450 feet across.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 12/05/2024.
At 50 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | North Carolina |
| County | Gaston |
| River/Stream | Long Creek |
| Coordinates | 35.34200, -81.30900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Length | 450 ft |
Ownership & Safety
| Purpose | Other |
| Owner | Martin Marietta Materials, Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/05/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC02640 |
| Federal ID | NC02640 |
| More Info | State Dam Safety Program |