Chippewa Estates Dam Reservoir Report

Last Updated: January 12, 2026

Chippewa Estates Dam, located in Peoria, Illinois, is a private-owned structure built in 1970 primarily for recreational purposes.


°F

°F

mph

Wind

%

Humidity

Summary

The dam, standing at 32 feet tall and stretching 485 feet in length, serves as a key feature along the tributary Jubilee Creek, offering a serene and picturesque setting for visitors to enjoy outdoor activities. Despite its low hazard potential, the dam is subject to state regulation, inspection, and enforcement by the Illinois Department of Natural Resources.

Although the condition assessment of Chippewa Estates Dam is currently not available, its risk assessment is rated as moderate, indicating a level 3 risk. The dam features an uncontrolled spillway and outlet gates, with a normal storage capacity of 42 acre-feet and a total storage of 59 acre-feet. While the dam has not undergone recent modifications, it is inspected every five years to ensure its safety and compliance with regulatory standards. In the event of an emergency, the dam's emergency action plan status, inundation maps, and risk management measures are not readily available, highlighting the importance of proactive planning and preparedness for potential hazards.

Year Completed

1970

Dam Length

485

Dam Height

32

River Or Stream

TRIB JUBILEE CREEK

Primary Dam Type

Earth

Nid Storage

59

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

32
       
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.