Duck Creek Gypsum Stack Dam Reservoir Report
Last Updated: December 19, 2025
Duck Creek Gypsum Stack Dam, also known as Ameren Duck Creek Gypsum Stack Dam, is located in Liverpool, Illinois, within Fulton County.
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Summary
This public utility dam is designed by Hanson Professional Services Inc. and falls under the regulatory jurisdiction of the Illinois Department of Natural Resources. The primary purpose of this earth dam is to contain tailings, with a height of 45 feet and a length of 4900 feet, providing a storage capacity of 773 acre-feet.
The dam has a controlled spillway type with a width of 1 foot and is equipped with valve outlet gates. Despite being categorized as low hazard potential, Duck Creek Gypsum Stack Dam is subject to regular inspections with a frequency of every 5 years. The risk assessment for this dam is rated as very high (1), indicating the importance of effective risk management measures. The dam's location near the TRIB Duck Creek and its significant surface area of 8.2 acres highlight its role in water resource management in the region.
Water resource and climate enthusiasts will find Duck Creek Gypsum Stack Dam to be a fascinating structure due to its unique purpose of containing tailings and its relatively high risk assessment. The dam's association with a controlled spillway, valve outlet gates, and low hazard potential further add to its significance in the context of water resource management. Given its location in Illinois and the state's regulatory oversight, the dam serves as a crucial component of the local infrastructure, emphasizing the importance of effective risk management practices for sustainable water resource utilization in the area.
Dam Length |
4900 |
Dam Height |
45 |
River Or Stream |
TRIB DUCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.2 |
Drainage Area |
0.06 |
Nid Storage |
773 |
Outlet Gates |
Valve |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Illinois River At Kingston Mines
|
5510cfs |
Spoon River At Seville
|
143cfs |
Mackinaw River Near Green Valley
|
32cfs |
Spoon River At London Mills
|
86cfs |
Sangamon River Near Oakford
|
377cfs |
Fondulac Creek Near East Peoria
|
0cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Rice Lake State Conservation Area
|
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Canton Lake
|
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Fulton County Rec Area
|
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Spring Lake State Conservation Area
|
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Back Country 11
|
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Back Country 10
|
Duck Creek Gypsum Stack Dam