Harbor Lake Dam Reservoir Report

Last Updated: December 5, 2025

Harbor Lake Dam, located in Sulphur Springs, Arkansas, serves as a critical water resource for fish and wildlife in the area.


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Summary

Built in 1978, this private-owned earth dam stands at a height of 24 feet and has a storage capacity of 65 acre-feet. The dam primarily functions as a fish and wildlife pond, as well as for irrigation purposes, providing essential support for the local ecosystem.

With a low hazard potential and a condition assessment that is currently not rated, Harbor Lake Dam remains a stable structure that contributes to the overall water management in Benton County, Arkansas. The dam has a normal storage capacity of 34 acre-feet and a surface area of 5 acres, serving as a vital resource for the surrounding community. Despite not being regulated by the state, the dam plays a crucial role in ensuring water availability for wildlife and irrigation needs in the region.

Although last inspected in 1990, Harbor Lake Dam continues to function effectively, demonstrating its reliability as a water resource infrastructure. As part of the Tulsa District of the US Army Corps of Engineers, this dam contributes to the overall water management efforts in the area. Its strategic location and purpose highlight the importance of sustainable water resource management and climate resilience in the region, making Harbor Lake Dam a significant asset for water enthusiasts and climate advocates alike.

Year Completed

1978

Dam Height

24

River Or Stream

BUTLER CREEK-TR

Primary Dam Type

Earth

Surface Area

5

Drainage Area

0.4

Nid Storage

65

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.