Allendale Conservation Club Lake Dam Reservoir Report

Last Updated: December 21, 2025

The Allendale Conservation Club Lake Dam, located in Stark County, Illinois, is a private earth dam completed in 1965 for recreational purposes.


°F

°F

mph

Wind

%

Humidity

Summary

The dam stands at a height of 13 feet and has a storage capacity of 127 acre-feet, with a normal storage level of 114 acre-feet. The dam is situated on the tributary of Spoon River, providing a serene recreational spot for water resource and climate enthusiasts to enjoy.

Managed by the Illinois Department of Natural Resources (IDNR), the Allendale Conservation Club Lake Dam is inspected regularly, with the last inspection conducted in July 2015. The dam has a low hazard potential and a moderate risk assessment rating of 3. While the condition assessment is not available, the dam's emergency action plan (EAP) status and risk management measures are also not specified in the data. Despite these gaps, the dam continues to serve its primary purpose of recreation for the local community.

With its tranquil setting and recreational opportunities, the Allendale Conservation Club Lake Dam is a valuable asset in the region. While more detailed information on its condition and risk assessment would be beneficial for water resource and climate enthusiasts, the dam's low hazard potential and moderate risk rating suggest that it is well-maintained and safe for visitors. As a private entity, the dam provides a unique blend of enjoyment and conservation for those who appreciate the intersection of water resources and climate preservation.

Year Completed

1965

Dam Length

1400

Dam Height

13

River Or Stream

TRIB SPOON RIVER

Primary Dam Type

Earth

Nid Storage

127

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

13
       
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.