Square Rock Lake Dam Reservoir Report

Last Updated: December 5, 2025

Square Rock Lake Dam, also known as Old Lake Waldron Dam, is a local government-owned structure located in Waldron, Arkansas.


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Summary

Completed in 1942, this earth dam stands at a height of 25 feet and serves as a crucial water supply source for the area. With a maximum storage capacity of 715 acre-feet and a normal storage of 528 acre-feet, the dam plays a vital role in managing water resources in the region.

Situated on Square Rock Creek, the dam has a low hazard potential and has not been rated for its condition assessment. Despite this, the dam is regulated, permitted, inspected, and enforced by the Arkansas Natural Resources Commission (ANRC) to ensure its safety and functionality. With a drainage area of 8 square miles and a surface area of 46 acres, Square Rock Lake Dam plays a significant role in controlling water flow and maintaining water quality in the area.

Managed by the Little Rock District of the US Army Corps of Engineers, Square Rock Lake Dam is a key infrastructure for water management in Scott County, Arkansas. With its primary purpose being water supply, the dam continues to serve the community by providing essential water resources while adhering to state regulations and inspection protocols to ensure its integrity and safety.

Year Completed

1942

Dam Length

735

Dam Height

25

River Or Stream

SQUARE ROCK CREEK

Primary Dam Type

Earth

Surface Area

46

Hydraulic Height

20

Drainage Area

8

Nid Storage

715

Structural Height

30

Hazard Potential

Low

Nid Height

30
       
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.