Kiowa Crossing Dam Reservoir Report

Last Updated: December 6, 2025

Kiowa Crossing Dam, also known as Kiowa Crossing Reservoir, is a private dam located in Winnebago, Illinois, near the city of Roscoe.


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Summary

Built in 1980 by Sargent Engineering Co., this earth dam stands at 18 feet tall and stretches 830 feet in length. Its primary purpose is for recreation, offering a storage capacity of 143 acre-feet and a maximum discharge of 1363 cubic feet per second.

Managed by the Illinois Department of Natural Resources, Kiowa Crossing Dam is regulated, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. Despite its significant hazard potential, the dam is deemed to have a moderate risk level. While the condition assessment is currently not available, the Emergency Action Plan (EAP) was last revised in 2015, and the dam is inspected every 3 years to mitigate any potential risks.

Situated on the Tributary of North Branch Kinnikinnick Creek, Kiowa Crossing Dam offers recreational opportunities for water resource and climate enthusiasts in the area. With its uncontrolled spillway and outlet gates, the dam provides a picturesque setting for outdoor activities while maintaining a balance between conservation and public safety.

Year Completed

1980

Dam Length

830

Dam Height

18

River Or Stream

TRIB NORTH BR KINNIKINNICK CR

Primary Dam Type

Earth

Nid Storage

143

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

18
       
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.