George Gaskill Jr. Pond Dam Reservoir Report
Nearby: Citizens Lake Dam Lake Warren Dam
Last Updated: December 17, 2025
Located in Warren County, Illinois, the George Gaskill Jr.
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Summary
Pond Dam, also known as Gaskill Pond, was completed in 1972 by the USDA NRCS. This privately-owned earth dam serves as a fish and wildlife pond, with a normal storage capacity of 36 acre-feet and a maximum storage of 72 acre-feet. The dam stands at a height of 26 feet and stretches 500 feet in length, with a surface area of 5 acres and a drainage area of 0.09 square miles.
Situated on TR- Johns Creek, this dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections and permitting processes. While the hazard potential is classified as low, the risk assessment indicates a moderate level of risk. The spillway of the dam is uncontrolled, with a width of 10 feet, and the outlet gates are also uncontrolled. Despite the condition assessment not being available, the dam's emergency action plan status and inundation maps preparedness remain unknown.
For water resource and climate enthusiasts, the George Gaskill Jr. Pond Dam presents an intriguing case study in dam infrastructure management. With its primary purpose of serving as a fish and wildlife pond, this earth dam showcases the importance of balancing ecological needs with potential risks and regulatory requirements. As a privately-owned structure with state jurisdiction and regulatory oversight, this dam exemplifies the complex interplay of stakeholders involved in ensuring the safety and sustainability of water resources in Illinois.
Year Completed |
1972 |
Dam Length |
500 |
Dam Height |
26 |
River Or Stream |
TR- JOHNS CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.09 |
Nid Storage |
72 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Henderson Creek Near Oquawka
|
39cfs |
Pope Creek Near Keithsburg
|
30cfs |
Edwards River Near New Boston
|
40cfs |
Iowa River At Wapello
|
3250cfs |
Edwards River Near Orion
|
66cfs |
Spoon River At London Mills
|
86cfs |
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.
George Gaskill Jr. Pond Dam