Kings Lake Dam Reservoir Report

Last Updated: December 5, 2025

Kings Lake Dam, located in Marion, Illinois, serves as a recreational hub for water resource and climate enthusiasts.


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Summary

Built in 1930, this private-owned earth dam stands at 19 feet tall and stretches 330 feet in length, with a storage capacity of 85 acre-feet. The dam overlooks the scenic Trib Crooked Creek, offering visitors a tranquil setting for outdoor activities such as fishing, boating, and birdwatching.

Managed by the Illinois Department of Natural Resources, Kings Lake Dam has a low hazard potential and is inspected every five years to ensure its structural integrity. With an uncontrolled spillway and outlet gates, the dam poses a moderate risk of potential issues. While the condition assessment is currently not available, the dam's risk management measures are continuously monitored to mitigate any risks and ensure the safety of the surrounding area.

For water resource and climate enthusiasts seeking a peaceful retreat in Central City, Kings Lake Dam provides a picturesque setting for recreational activities and nature appreciation. With its historical significance and scenic views, this dam is a hidden gem in Marion, Illinois, offering a serene escape for those passionate about water resources and climate conservation.

Year Completed

1930

Dam Length

330

Dam Height

19

River Or Stream

TRIB CROOKED CREEK

Primary Dam Type

Earth

Nid Storage

85

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

19
       
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.