Edwards Lake Dam (Turtle Creek Nursery) Reservoir Report

Last Updated: December 5, 2025

Edwards Lake Dam, also known as Turtle Creek Nursery, is a private dam located in Concord, North Carolina.


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Summary

Managed by the USDA NRCS, this earth dam serves the primary purpose of irrigation along the Rocky River-Os stream. With a hydraulic height of 33 feet and a structural height of 37 feet, the dam has a storage capacity of 24 acre-feet and covers a surface area of 4 acres.

Although not regulated by the state, the dam has been inspected and deemed to have a low hazard potential. The spillway, which is uncontrolled, has a maximum discharge of 92 cubic feet per second. The last inspection was conducted in October 2018, with the condition assessment marked as "Not Rated". Despite its moderate risk assessment, the dam's risk management measures and emergency preparedness plans are currently not available.

For water resource and climate enthusiasts, Edwards Lake Dam represents a unique irrigation structure that supports agricultural activities in the region. As an earth dam constructed with stone core types and soil foundations, its presence contributes to water management and conservation efforts. Monitoring and maintenance of this dam are essential to ensure its continued functionality and safety for the surrounding community and environment.

Dam Length

250

River Or Stream

Rocky River-Os

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

33

Drainage Area

40

Nid Storage

24

Structural Height

37

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

37
       
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.