Lake Ronnie Dam Reservoir Report
Nearby: Willow Lake Estates Dam Ylsa Lake Dam
Last Updated: December 23, 2025
Lake Ronnie Dam, located in Evansville, Illinois, is a private earth dam completed in 1952 for recreational purposes.
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Summary
With a dam height of 17 feet and a storage capacity of 130 acre-feet, the dam is situated on the tributary of Rockhouse Creek. It is regulated by the Illinois Department of Natural Resources and is inspected regularly to ensure safety and compliance with state regulations.
Although the dam has a low hazard potential, it is considered to have a moderate risk level. The spillway is uncontrolled with a width of 35 feet, and the dam has an uncontrolled outlet gate. While the condition assessment is not available, the last inspection was conducted in July 2015. The dam's emergency action plan status and risk management measures are also not specified in the data provided.
Lake Ronnie Dam serves as a vital recreational resource in Monroe County, offering opportunities for fishing, boating, and other water-related activities. Climate and water resource enthusiasts can appreciate the dam's role in providing both leisure and environmental benefits to the community while ensuring public safety through regular inspections and risk assessments.
Year Completed |
1952 |
Dam Length |
480 |
Dam Height |
17 |
River Or Stream |
TRIB ROCKHOUSE CREEK |
Primary Dam Type |
Earth |
Nid Storage |
130 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
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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.
Lake Ronnie Dam