Birchlers Lake Dam Reservoir Report
Last Updated: January 11, 2026
Birchlers Lake Dam, located in Randolph, Illinois, is a privately-owned structure primarily used for recreation.
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Summary
Built in 1950, this Earth dam stands at a height of 22 feet and spans 440 feet in length, providing a storage capacity of 94 acre-feet. Despite its low hazard potential, the dam is regulated by the Illinois Department of Natural Resources (IDNR) and undergoes regular inspections to ensure its safety and functionality.
The dam's design, classified as Buttress type, features an uncontrolled spillway with a width of 23 feet. Surrounded by the serene surroundings of TRIB GRAVEL CREEK, Birchlers Lake Dam offers visitors a tranquil escape for outdoor activities such as fishing, boating, and picnicking. With moderate risk management measures in place, the dam continues to serve as a vital resource for water storage and recreational enjoyment in the area.
Birchlers Lake Dam, with its picturesque location and historical significance, remains a valuable asset for the community. As water resource and climate enthusiasts explore the dam's features and purpose, they can appreciate the careful planning and maintenance efforts that contribute to its safe operation. With state oversight and a focus on risk management, Birchlers Lake Dam stands as a testament to responsible stewardship of water resources in Illinois.
Year Completed |
1950 |
Dam Length |
440 |
Dam Height |
22 |
River Or Stream |
TRIB GRAVEL CREEK |
Primary Dam Type |
Earth |
Nid Storage |
94 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
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.
Birchlers Lake Dam