Memorial East Campus Lake Dam Reservoir Report

Last Updated: December 6, 2025

Located in Shiloh, Illinois, the Memorial East Campus Lake Dam is a privately owned structure designed by THOUVENOT, WADE & MOERSCHEN.


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Summary

Built in 1958, this earth dam stands at a height of 28 feet and spans a length of 550 feet along the TRIB ROCK SPRINGS BRANCH. Its primary purpose is flood risk reduction, with a storage capacity of 55 acre-feet and a maximum discharge of 60 cubic feet per second. The dam is regulated by the Illinois Department of Natural Resources and is subject to state inspection and enforcement protocols.

Despite its low hazard potential, the Memorial East Campus Lake Dam has a moderate risk assessment rating of 3. While its condition assessment is currently unavailable, the dam is inspected every five years to ensure its structural integrity and functionality. The spillway is uncontrolled with a width of 6 feet, and there are no associated locks or outlet gates. The dam's emergency action plan status and risk management measures are also not specified in the available data, indicating potential areas of improvement in emergency preparedness and response.

In the picturesque setting of St. Clair County, Illinois, the Memorial East Campus Lake Dam serves as a vital flood risk reduction infrastructure along the TRIB ROCK SPRINGS BRANCH. With a history dating back to 1958, this privately owned dam plays a crucial role in water resource management in the region. As climate change continues to influence precipitation patterns and water levels, the upkeep and monitoring of structures like the Memorial East Campus Lake Dam are essential to mitigating flood risks and ensuring the safety of nearby communities.

Year Completed

1958

Dam Length

550

Dam Height

28

River Or Stream

TRIB ROCK SPRINGS BRANCH

Primary Dam Type

Earth

Nid Storage

55

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

28
       
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.