Evans Lake Dam Reservoir Report
Last Updated: December 13, 2025
Evans Lake Dam, located in Gaston, North Carolina, is a private-owned structure with a primary purpose of recreation.
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Summary
The dam, classified as an Earth type, stands at a structural height of 20 feet and has a hydraulic height of 17 feet, providing a storage capacity of 16 acre-feet. The dam overlooks the scenic Little Long Creek-Os river, making it an ideal spot for water resource and climate enthusiasts to visit.
Despite not being regulated by the state, Evans Lake Dam is subject to regular inspections, with the last one conducted in January 2019. The dam is deemed to have a significant hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. While there are no emergency action plans (EAP) in place, the dam meets guidelines for inundation maps and risk management measures are being evaluated. With its picturesque location and ongoing safety assessments, Evans Lake Dam offers both recreational opportunities and a point of interest for those interested in water resource management and climate resilience.
River Or Stream |
Little Long Creek-Os |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
17 |
Drainage Area |
128 |
Nid Storage |
16 |
Structural Height |
20 |
Hazard Potential |
Significant |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Evans Lake Dam