Round Grove Sportsman Lake Dam Reservoir Report
Last Updated: December 20, 2025
Round Grove Sportsman Lake Dam in Clark, Illinois, is a private recreational facility built in 1947 with a primary purpose of providing leisure activities for water resource and climate enthusiasts.
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Summary
Managed by the Illinois Department of Natural Resources, this earth dam stands at 28 feet tall and stretches 290 feet in length, creating a reservoir with a storage capacity of 105 acre-feet. The dam overlooks the tributary North Fork Embarrass River and features an uncontrolled spillway with a width of 65 feet.
Despite being classified as having a low hazard potential, the dam at Round Grove Sportsman Lake undergoes inspections every 5 years to ensure its safety and structural integrity. The risk assessment for this dam is rated as moderate, with no available condition assessment at this time. While the dam's emergency action plan status and inundation maps remain under review, the facility continues to provide a valuable recreational outlet for local residents and visitors alike. As a key feature in the natural landscape of Martinsville, this dam serves as a reminder of the importance of responsible water resource management in the face of changing climate patterns.
Year Completed |
1947 |
Dam Length |
290 |
Dam Height |
28 |
River Or Stream |
TRIB NORTH FORK EMBARASS RIVER |
Primary Dam Type |
Earth |
Nid Storage |
105 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
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.
Round Grove Sportsman Lake Dam