Baldwin Station Fly Ash Pond Reservoir Report
Last Updated: December 21, 2025
Baldwin Station Fly Ash Pond, located in Randolph County, Illinois, is a rockfill dam used for purposes other than flood control or water supply.
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Summary
This pond is regulated by the Illinois Department of Natural Resources and is subject to state permitting, inspection, and enforcement. The hazard potential of the pond is considered significant, with a moderate risk assessment rating.
Although specific details such as dam height, volume, and storage capacity are not provided, the Baldwin Station Fly Ash Pond is monitored regularly with inspections occurring every three years. The Emergency Action Plan (EAP) for the pond was last revised in April 2020, indicating that preparations are in place for potential emergencies. The dam's spillway is of the uncontrolled type, and the structure falls under the jurisdiction of the St. Louis District of the US Army Corps of Engineers.
For water resource and climate enthusiasts, the Baldwin Station Fly Ash Pond offers a unique case study in dam safety and regulation. The pond's location near the tributary of the Kaskaskia River highlights the importance of managing industrial waste and ensuring the structural integrity of impoundments. With its significant hazard potential and moderate risk assessment, ongoing monitoring and risk management measures are crucial to safeguarding the surrounding environment and communities.
River Or Stream |
TRIB KASKASKIA R |
Primary Dam Type |
Rockfill |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Kaskaskia River At New Athens
|
431cfs |
Richland Creek Near Hecker
|
15cfs |
Silver Creek Near Freeburg
|
54cfs |
Mississippi River At Chester
|
83100cfs |
Kaskaskia River Near Venedy Station
|
219cfs |
Little Crooked Creek Near New Minden
|
2cfs |
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.
Baldwin Station Fly Ash Pond