Wilmor Sportsman Club East Lake Dam Reservoir Report
Last Updated: December 21, 2025
Located in Mapleton, Illinois, the Wilmor Sportsman Club East Lake Dam is a private recreational dam designed by USDA NRCS in 1954.
°F
°F
mph
Wind
%
Humidity
Summary
With a height of 31 feet and a length of 292 feet, this earth dam serves the primary purpose of recreation, providing a storage capacity of 66 acre-feet. The dam is state-regulated by the Illinois Department of Natural Resources, with inspections and enforcement ensuring its safe operation.
The dam features an uncontrolled spillway with a width of 147 feet, and its hazard potential is categorized as low. While the condition assessment is not available, the dam's risk assessment is moderate, with a designated risk level of 3. Despite being non-federally owned, the Wilmor Sportsman Club East Lake Dam offers water enthusiasts a picturesque location for outdoor activities and serves as a vital resource for the local community. With its historical significance and ongoing regulatory oversight, this dam continues to be a focal point for water resource and climate enthusiasts in Tazewell County, Illinois.
Year Completed |
1954 |
Dam Length |
292 |
Dam Height |
31 |
River Or Stream |
TRIB MUD CREEK |
Primary Dam Type |
Earth |
Nid Storage |
66 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
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.
Wilmor Sportsman Club East Lake Dam