Mcclure East Pond Dam Reservoir Report

Last Updated: December 19, 2025

Mcclure East Pond Dam, located in McDonough County, Illinois, is a privately owned structure primarily used for recreation.


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Summary

Built in 1940, this earth dam stands at a height of 30 feet and stretches 284 feet in length. The dam has a maximum storage capacity of 76 acre-feet, with a normal storage level of 37 acre-feet. Despite its recreational purpose, the dam poses a significant hazard potential and is classified as having a moderate risk level.

Managed by the Illinois Department of Natural Resources, the Mcclure East Pond Dam is subject to state regulation, inspection, and enforcement. The dam's spillway is uncontrolled, and it does not have outlet gates. The last inspection of the dam was conducted in July 2015, with an inspection frequency of every three years. While the condition assessment of the dam is currently not available, the risk assessment indicates moderate risk, with a hazard potential deemed significant.

For water resource and climate enthusiasts, the Mcclure East Pond Dam serves as a vital structure within the East Fork Lamoine River tributary system. With its historical significance dating back to the mid-20th century, this dam offers a unique opportunity for outdoor recreation while also highlighting the importance of proper dam management and maintenance to mitigate potential risks associated with dam failure. As efforts continue to ensure the safety and effectiveness of this dam, it remains a focal point for conservation and sustainable water resource management in the region.

Year Completed

1940

Dam Length

284

Dam Height

30

River Or Stream

TRIB EAST FORK LAMOINE RIVER

Primary Dam Type

Earth

Nid Storage

76

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

30
       
Seasonal Comparison

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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.