Fondulac Dam Reservoir Report
Nearby: Farmdale Dam Gabbert Pond Dam
Last Updated: December 12, 2025
Fondulac Dam, located in East Peoria, Illinois, is a gravity dam built in 1949 by the US Army Corps of Engineers for flood risk reduction on Fondulac Creek.
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Summary
With a height of 74 feet and a length of 1000 feet, the dam has a storage capacity of 3780 acre-feet and a maximum discharge of 18100 cubic feet per second. The dam's uncontrolled spillway and high hazard potential necessitate continuous monitoring and risk management measures to ensure its structural integrity and public safety.
The US Army Corps of Engineers oversees the operation, inspection, and maintenance of Fondulac Dam, working closely with local emergency managers to develop emergency action plans and evacuation procedures. Regular assessments of the dam's condition and risk factors are conducted to prioritize necessary repairs and improvements. Despite its important role in flood control, the dam's limited capacity to store water and the potential impact of severe weather events highlight the ongoing need for vigilant monitoring and proactive risk mitigation strategies.
In the face of evolving climate patterns and potential threats to water resources, Fondulac Dam serves as a critical infrastructure for managing flood risk in the region. The Corps' commitment to safety and preparedness, coupled with community engagement and proactive maintenance practices, underscores the importance of sustainable water resource management in the face of changing environmental conditions.
Year Completed |
1949 |
Dam Length |
1000 |
Dam Height |
74 |
River Or Stream |
FONDULAC CREEK |
Primary Dam Type |
Gravity |
Hydraulic Height |
47 |
Drainage Area |
5 |
Nid Storage |
3780 |
Structural Height |
67 |
Outlet Gates |
Uncontrolled - 0 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
74 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Fondulac Dam