Smyers Lake Dam Number One Reservoir Report

Last Updated: December 5, 2025

Smyers Lake Dam Number One, also known as Hollybrook Dam, is a private dam located in Shelby, Alabama, near the city of DUNAVANT.


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Summary

Built in 1961, this earth dam stands at a height of 33 feet and serves primarily for recreational purposes, with a storage capacity of 1040 acre-feet. The dam is situated on SHOAL CREEK, within the jurisdiction of the Mobile District of the US Army Corps of Engineers.

Despite its recreational focus, Smyers Lake Dam Number One poses a high hazard potential, as it has not been rated for its condition and lacks a formal Emergency Action Plan (EAP). With a maximum discharge capacity of 4800 cubic feet per second, the dam presents a crucial area for monitoring and potential risk assessment in case of emergencies. The dam has not been inspected recently, and its overall risk management measures remain unclear.

Water resource and climate enthusiasts interested in Smyers Lake Dam Number One will find its unique design and historical background intriguing. With its location on a scenic creek and the potential for recreational activities, the dam offers a blend of natural beauty and engineering prowess. However, the lack of recent inspections and formal risk management plans highlight the importance of proper maintenance and emergency preparedness for dams of this nature in ensuring the safety of surrounding communities and the environment.

Year Completed

1961

Dam Length

430

River Or Stream

SHOAL CREEK

Primary Dam Type

Earth

Hydraulic Height

33

Nid Storage

1040

Structural Height

33

Hazard Potential

High

Nid Height

33
       
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.