Wilborn Lake Dam Reservoir Report

Last Updated: December 5, 2025

Wilborn Lake Dam, located in Nunnally Ford, Alabama, is a private dam built in 1955 for recreational purposes on Black Creek.


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Summary

Standing at a structural height of 24 feet and a hydraulic height of 20 feet, the dam has a storage capacity of 120 acre-feet, making it a popular spot for water activities and relaxation. Despite its age, the dam has a low hazard potential and has not been rated for its condition, indicating its stability and safety for visitors.

Managed by private owners, Wilborn Lake Dam has not undergone recent inspections or assessments, but its low hazard potential suggests that it is well-maintained and poses minimal risk. With a maximum discharge rate of 3000 cubic feet per second, the dam is equipped to handle high water levels and maintain its structural integrity. The dam's arch design and location on Black Creek provide a picturesque backdrop for outdoor enthusiasts and climate advocates to enjoy the beauty of nature and the importance of water resource management.

Although not regulated by the state or federal agencies, Wilborn Lake Dam serves as a recreational oasis in Shelby County, Alabama. Its peaceful surroundings and serene waters offer a sanctuary for wildlife and a tranquil escape for visitors seeking to connect with nature. As a symbol of the harmonious relationship between water resources and human recreation, Wilborn Lake Dam stands as a testament to the significance of preserving our natural landscapes for future generations to enjoy.

Year Completed

1955

Dam Length

100

River Or Stream

BLACK CREEK

Primary Dam Type

Arch

Hydraulic Height

20

Nid Storage

120

Structural Height

24

Hazard Potential

Low

Nid Height

24
       
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.