Country Lake Dam Reservoir Report
Nearby: Browns Lake Dam Cilca Lake Dam
Last Updated: December 21, 2025
Country Lake Dam, located in Menard County, Illinois, is a privately owned structure built for recreational purposes along Halls Branch.
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Summary
Completed in 1975, this earth dam stands at a height of 39 feet and has a length of 530 feet, providing a storage capacity of 123 acre-feet. Despite being classified as a low hazard potential dam, it is regulated and inspected by the Illinois Department of Natural Resources to ensure its safety and compliance with state regulations.
The dam features an uncontrolled spillway and outlet gates, with no associated locks for navigation. While its condition assessment is not currently available, the dam is considered to have a moderate risk level due to its age and potential for adverse impacts. Emergency action plans and risk management measures are being evaluated to mitigate any potential threats and ensure the safety of the surrounding community in case of any unforeseen events.
With its picturesque location and importance for recreational activities, Country Lake Dam serves as a vital water resource for the region. Enthusiasts interested in water resource management and climate resilience can appreciate the role this dam plays in providing water storage and recreational opportunities while also being mindful of the need for proactive risk management and emergency preparedness.
Year Completed |
1975 |
Dam Length |
530 |
Dam Height |
39 |
River Or Stream |
HALLS BRANCH |
Primary Dam Type |
Earth |
Nid Storage |
123 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sangamon River At Petersburg
|
209cfs |
Spring Creek At Springfield
|
7cfs |
Salt Creek Near Greenview
|
204cfs |
Sangamon River At Riverton
|
125cfs |
Sangamon River Near Oakford
|
421cfs |
South Fork Sangamon River Nr Rochester
|
11cfs |
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.
Country Lake Dam