Stancil Lake Dam Reservoir Report

Last Updated: December 5, 2025

Stancil Lake Dam, located in Wilson, North Carolina, was completed in 1945 primarily for irrigation purposes.


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Summary

The dam stands at a structural height of 20 feet with a hydraulic height of 17 feet, impounding a maximum storage of 110 acre-feet. While its primary purpose is irrigation, the dam also serves for recreational activities, covering a surface area of 6 acres.

The dam, classified as an earth dam, overlooks the Toisnot Swamp-Tr river, and has a low hazard potential with a "Not Rated" condition assessment. Despite being privately owned, the dam is subject to state inspection, ensuring its operational safety. The last documented inspection dates back to December 2000, with a low inspection frequency.

With its modest size and purpose, Stancil Lake Dam provides a vital water resource for the surrounding Nash County area. Water resource and climate enthusiasts can appreciate the dam's role in supporting agricultural activities while also offering opportunities for recreational enjoyment in the region.

Year Completed

1945

Dam Length

536

River Or Stream

Toisnot Swamp-Tr

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

17

Nid Storage

110

Structural Height

20

Hazard Potential

Low

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.