Churchill Club Subdivision Basin D Dam Reservoir Report

Last Updated: December 5, 2025

The Churchill Club Subdivision Basin D Dam, located in Kendall County, Illinois, was completed in 2004 for the primary purpose of flood risk reduction.


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Summary

Owned by the local government and designed by Henderson and Bodwell, L.L.P., this concrete dam stands at a height of 7.23 feet and has a storage capacity of 160 acre-feet. With a low hazard potential and moderate risk assessment, this dam plays a crucial role in protecting the surrounding area from potential flooding events.

Situated on the Trib Waubonsee Creek, the Churchill Club Subdivision Basin D Dam not only serves as a flood control structure but also offers recreational opportunities for the local community. With a drainage area of 1.04 square miles and a maximum discharge capacity of 1000 cubic feet per second, this dam plays a vital role in managing water flow and mitigating flood risks in the region. Despite its low hazard potential, regular inspections and maintenance ensure that this structure remains safe and effective in fulfilling its purpose.

Managed by the Illinois Department of Natural Resources (IDNR), the Churchill Club Subdivision Basin D Dam stands as a testament to effective water resource management and climate resilience efforts in the area. With its strategic location and design, this dam serves as a valuable asset in safeguarding the community against potential flood events while also providing recreational opportunities for residents to enjoy.

Year Completed

2004

Dam Length

40

Dam Height

7.23

River Or Stream

TRIB WAUBONSEE CREEK

Primary Dam Type

Concrete

Surface Area

20

Drainage Area

1.04

Nid Storage

160

Outlet Gates

Needle - 0

Hazard Potential

Low

Foundations

Soil

Nid Height

7
       
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.