Beil Lake 1 East Dam Reservoir Report
Nearby: Beil Lake 1 South Dam Beil Lake 2 Dam
Last Updated: December 25, 2025
Beil Lake 1 East Dam, located in St.
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Summary
Clair, Illinois, is a private earth dam completed in 1942 for the primary purpose of recreation. The dam stands at a height of 31 feet and has a length of 345 feet, providing a storage capacity of 112 acre-feet. Situated on Trib Dougals Creek, the dam offers an idyllic setting for outdoor enthusiasts to enjoy activities such as fishing, boating, and wildlife observation.
Managed by the Illinois Department of Natural Resources, Beil Lake 1 East Dam has a low hazard potential and a moderate risk assessment rating. While the dam has not been assessed for its condition, regular inspections are conducted every five years to ensure its safety and structural integrity. The spillway, which is uncontrolled, has a width of 115 feet, allowing for the controlled release of excess water during times of high flow.
Despite its tranquil surroundings and recreational opportunities, Beil Lake 1 East Dam serves as a reminder of the importance of proper dam maintenance and management in the face of changing climate conditions. As water resources and climate enthusiasts, it is crucial to advocate for sustainable practices that protect our valuable water infrastructure for future generations to enjoy and benefit from.
Year Completed |
1942 |
Dam Length |
345 |
Dam Height |
31 |
River Or Stream |
TRIB DOUGALS CREEK |
Primary Dam Type |
Earth |
Nid Storage |
112 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Richland Creek Near Hecker
|
13cfs |
Silver Creek Near Freeburg
|
28cfs |
Martigney Creek Near Arnold
|
0cfs |
Kaskaskia River At New Athens
|
551cfs |
Mississippi River At St. Louis
|
78100cfs |
Gravois Creek Near Mehlville
|
4cfs |
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.
Beil Lake 1 East Dam