Bertinettis Lake Dam Reservoir Report
Last Updated: December 20, 2025
Bertinettis Lake Dam, located in Taylorville, Illinois, is a private-owned structure with a primary purpose of recreation.
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Summary
Built in 1956, this earth-type dam stands at 29 feet high and spans 400 feet in length, holding a maximum storage capacity of 684 acre-feet. The dam overlooks the TRIB SOUTH FORK SANGAMON RIVER and is under the regulatory jurisdiction of the Illinois Department of Natural Resources.
Despite its age, Bertinettis Lake Dam has a significant hazard potential and is classified as a moderate risk structure. The dam features an uncontrolled spillway type with a width of 43 feet and is regularly inspected every three years. While the condition assessment is not currently available, the dam's emergency action plan status and risk management measures are also not specified in the data. With its picturesque location and historical significance, Bertinettis Lake Dam offers both recreational opportunities and a reminder of the importance of maintaining and monitoring water resource infrastructures for the safety and enjoyment of all.
Year Completed |
1956 |
Dam Length |
400 |
Dam Height |
29 |
River Or Stream |
TRIB SOUTH FORK SANGAMON RIVER |
Primary Dam Type |
Earth |
Nid Storage |
684 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
29 |
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.
Bertinettis Lake Dam