Lake Swannanoa Dam Reservoir Report
Last Updated: December 14, 2025
Lake Swannanoa Dam, located in Durham, North Carolina, is a state-regulated structure on Ellerbe Creek with a high hazard potential.
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Summary
Managed by the NC Dam Safety Program, this dam is inspected regularly to ensure its fair condition and the safety of surrounding communities. The last inspection in February 2021 revealed no immediate concerns, but its emergency action plan and risk assessment are currently under review.
While specific details about the dam's height, volume, and completion year are not provided, the data highlights the importance of ongoing monitoring and maintenance for critical infrastructure like Lake Swannanoa Dam. With a high hazard potential, it is crucial for authorities to stay vigilant in assessing any potential risks and implementing necessary risk management measures. As a key water resource in the area, the dam plays a vital role in water storage and flood control, underscoring the need for continued attention and investment in its upkeep.
As water resource and climate enthusiasts, understanding the intricacies of structures like Lake Swannanoa Dam sheds light on the complex interplay between human intervention and natural systems. With its association with Ellerbe Creek and its role in regulating water flow, this dam serves as a reminder of the delicate balance required to manage water resources effectively. By staying informed and engaged with initiatives like the NC Dam Safety Program, enthusiasts can contribute to the sustainable stewardship of these vital resources for future generations.
River Or Stream |
Ellerbe Creek |
Hazard Potential |
High |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Oconee River Near Mount Vernon
|
1230cfs |
Turnpike Creek Near Mcrae
|
10cfs |
Ocmulgee River At Lumber City
|
2600cfs |
Altamaha River Near Baxley
|
4160cfs |
Oconee River At Dublin
|
988cfs |
Ohoopee River Near Reidsville
|
176cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Mercer Irrigation Pond Dam