Willenburg Lake Dam Reservoir Report

Last Updated: December 5, 2025

Located in Adona, Arkansas, the Willenburg Lake Dam is a private structure designed by the USDA NRCS and completed in 1965.


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Summary

This earth dam stands at a height of 21 feet and serves primarily for recreation purposes, offering a storage capacity of 125 acre-feet. The dam overlooks Danner Creek and is situated in a low hazard area with a moderate risk assessment rating.

Despite its modest size, Willenburg Lake Dam plays a crucial role in providing recreational opportunities for the local community and visitors alike. The dam's uncontrolled spillway and lack of outlet gates contribute to its simple yet effective design. With a history dating back to the mid-20th century, this dam continues to be a key feature in the landscape of Perry County, Arkansas.

Water resource and climate enthusiasts will appreciate the unique characteristics of Willenburg Lake Dam, from its location in the Little Rock District to its low hazard potential and moderate risk assessment. While not regulated by the state, this privately owned structure remains an integral part of the region's water infrastructure. With its focus on recreation and modest storage capacity, Willenburg Lake Dam stands as a testament to the importance of sustainable water management and environmental stewardship in the face of changing climate patterns.

Year Completed

1965

Dam Length

600

Dam Height

21

River Or Stream

DANNER CREEK

Primary Dam Type

Earth

Hydraulic Height

16

Nid Storage

125

Structural Height

21

Hazard Potential

Low

Nid Height

21
       
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.