Minooka Ridge Business Center Temp Detention Dam Reservoir Report

Last Updated: December 5, 2025

Located in Minooka, Illinois, the Minooka Ridge Business Center Temp Detention Dam is a private-owned structure designed for flood risk reduction along the TRIB AUX SABLE CREEK.


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Summary

This earth dam stands at a height of 14 feet and spans 2600 feet in length, with a storage capacity of 121 acre-feet. It serves as a crucial infrastructure to mitigate the impact of flooding in the area, with a low hazard potential and moderate risk assessment.

Managed by the Illinois Department of Natural Resources (IDNR), the dam features an uncontrolled spillway and outlet gates. Regularly inspected every 5 years, the structure is deemed to be in good condition, with no available assessment data indicating any immediate concerns. While its primary purpose is flood risk reduction, the dam also contributes to regulating water flow, particularly during high discharge events, with a maximum discharge capacity of 896 cubic feet per second.

With Lauren Underwood as the congress representative overseeing the district, the Minooka Ridge Business Center Temp Detention Dam stands as a testament to proactive infrastructure development in the face of climate change challenges. Its strategic location and design play a significant role in safeguarding the community against potential water-related emergencies, highlighting the importance of sustainable water resource management and climate adaptation efforts in the region.

Dam Length

2600

Dam Height

14

River Or Stream

TRIB AUX SABLE CREEK

Primary Dam Type

Earth

Surface Area

10.6

Drainage Area

0.21

Nid Storage

121

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

14
       
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.