Stanrick Dam Reservoir Report

Last Updated: December 13, 2025

Stanrick Dam, also known as Stanrick Lake, is a privately owned recreational dam located in Rock Island, Illinois.


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Summary

Built in 1988 by STOEWER ENGINEERING & ASSOCIATES, the earth dam stands at a height of 32 feet and stretches 550 feet in length, with a storage capacity of 310 acre-feet. Situated on the TRIB MILL CREEK, the dam serves its primary purpose of recreation and is regulated by the Illinois Department of Natural Resources.

With a low hazard potential and moderate risk assessment, Stanrick Dam has a controlled spillway width of 114 feet and a maximum discharge capacity of 3800 cubic feet per second. Although the dam does not have associated locks, it offers a serene environment for water resource and climate enthusiasts to explore and enjoy. While the condition assessment is not available, the dam undergoes inspections every 5 years to ensure its safety and integrity.

Managed by private owners, Stanrick Dam provides a valuable recreational space for the community, offering a peaceful escape for visitors to engage with nature and the surrounding environment. As a key feature in the area, the dam contributes to the local water resources and serves as a reminder of the importance of sustainable water management practices in the face of changing climate conditions.

Year Completed

1988

Dam Length

550

Dam Height

32

River Or Stream

TRIB MILL CREEK

Primary Dam Type

Earth

Nid Storage

310

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

32
       
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.