Benson Pond Dam 1 Reservoir Report
Nearby: Cilca Lake Dam Browns Lake Dam
Last Updated: December 20, 2025
Benson Pond Dam 1, located in Sangamon County, Illinois, is a privately owned structure designed by the USDA NRCS and completed in 1978.
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Summary
This earth dam stands at 29 feet high and spans 300 feet in length, with a storage capacity of 35 acre-feet. Situated on Richard Creek, the dam serves various purposes and is regulated by the Illinois Department of Natural Resources.
The dam's spillway, with a width of 38 feet, is classified as uncontrolled, and the hazard potential is considered low. Despite its moderate risk assessment, the condition assessment of Benson Pond Dam 1 is currently not available, indicating a need for further inspection and evaluation. The last recorded inspection was in July 2015, highlighting the importance of regular monitoring and maintenance to ensure the safety and integrity of the structure.
While the dam poses a moderate risk, it plays a crucial role in water resource management for the area, providing storage and discharge capabilities for Richard Creek. With its unique design and function, Benson Pond Dam 1 serves as a significant feature in the local landscape and a focal point for water resource and climate enthusiasts interested in understanding and preserving our natural water systems.
Year Completed |
1978 |
Dam Length |
300 |
Dam Height |
29 |
River Or Stream |
RICHARD CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.15 |
Nid Storage |
35 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Spring Creek At Springfield
|
7cfs |
Sangamon River At Petersburg
|
209cfs |
Sangamon River At Riverton
|
125cfs |
South Fork Sangamon River Nr Rochester
|
11cfs |
Salt Creek Near Greenview
|
204cfs |
Sangamon River Near Oakford
|
421cfs |
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.
Benson Pond Dam 1