Collins Dam Reservoir Report

Last Updated: December 5, 2025

Collins Dam, also known as Wilson Pond, is a privately owned structure located in Mecklenburg County, North Carolina.


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Summary

Situated on the Gum Branch-Os river or stream, this earth dam serves primarily for recreational purposes with a hydraulic height of 18 feet and a structural height of 20 feet. The dam has a length of 300 feet and can hold a maximum storage capacity of 18 acre-feet, with a normal storage level of 16 acre-feet.

Although not state-regulated, Collins Dam has been inspected and deemed to have a significant hazard potential with a fair condition assessment as of November 2018. This dam plays a crucial role in providing water recreation opportunities in the area, covering a surface area of 2.4 acres and draining a watershed area of 180 square miles. While the dam has not undergone recent modifications or assessments for risk management, its presence contributes to the overall water resource management and climate resilience efforts in the region. Enthusiasts interested in water resource development and climate adaptation initiatives may find Collins Dam to be a notable site worth exploring for its recreational and environmental significance.

Dam Length

300

River Or Stream

Gum Branch-Os

Primary Dam Type

Earth

Surface Area

2.4

Hydraulic Height

18

Drainage Area

180

Nid Storage

18

Structural Height

20

Hazard Potential

Significant

Nid Height

20
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.