Marsh A Dam Reservoir Report

Last Updated: December 5, 2025

Marsh A Dam, located in Kane County, Illinois, is a privately owned structure designed for fish and wildlife management.


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Summary

Built in 1951, this earth dam stands at a height of 35 feet and has a storage capacity of 23 acre-feet. Situated along the Tributary Fox River, the dam serves as a pond for fish and wildlife, contributing to the conservation efforts in the area.

Managed by the Illinois Department of Natural Resources, Marsh A Dam is regulated, permitted, inspected, and enforced by the state authorities. With a low hazard potential and a moderate risk assessment rating, the dam poses minimal threat to the surrounding community. While the condition assessment is currently not available, the dam has a designated emergency action plan and regular inspection frequency to ensure safety and compliance with guidelines.

Although there are no associated structures or spillways, Marsh A Dam plays a vital role in maintaining the ecological balance in the region. With its strategic location and purpose, this earth dam stands as a testament to the importance of water resource management and climate resilience in protecting and preserving natural habitats.

Year Completed

1951

Dam Height

35

River Or Stream

TRIB FOX RIVER

Primary Dam Type

Earth

Drainage Area

0.05

Nid Storage

23

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

35
       
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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.