Trosper Lake Dam Reservoir Report
Nearby: Rivenbark Dam Lake Brandt Dam
Last Updated: December 14, 2025
Trosper Lake Dam, located in Ossipee, North Carolina, is a privately owned earth dam that was completed in 1954 for the primary purpose of recreation.
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Summary
The dam stands at a structural height of 25 feet, with a hydraulic height of 20 feet, and a length of 250 feet. It impounds Trosper Lake with a storage capacity of 100 acre-feet and a normal storage level of 80 acre-feet.
Managed by the NC Department of Environmental Quality's Dam Safety Program, Trosper Lake Dam has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in February 2018. The dam has a maximum discharge capacity of 248 cubic feet per second and is regulated by the state, with permitting, inspection, and enforcement processes in place to ensure its safety and compliance with regulations. Trosper Lake Dam serves as a recreational asset for the community while also contributing to water resource management in the area.
Overall, Trosper Lake Dam is a vital structure that plays a significant role in water resource management and recreation in Guilford County, North Carolina. With a history dating back to the 1950s, the dam continues to provide valuable storage capacity for Trosper Lake while adhering to state regulations and safety standards. Its low hazard potential and satisfactory condition underscore the importance of ongoing monitoring and maintenance to ensure the dam's continued functionality and safety for both recreational users and the surrounding environment.
Year Completed |
1954 |
Dam Length |
250 |
River Or Stream |
Reedy Fork Creek-Tr |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
20 |
Nid Storage |
100 |
Structural Height |
25 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Trosper Lake Dam