Sangamon Valley Pwd Pcf Dam Reservoir Report
Last Updated: December 17, 2025
The Sangamon Valley Pwd Pcf Dam, located in Mahomet, Illinois, is a significant offstream structure situated along the Sangamon River.
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Summary
Owned by a public utility, this dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations. With a height of 18 feet and a length of 500 feet, this earth dam serves a primary purpose that is listed as "Other," indicating its importance beyond typical water resource management.
Despite its moderate risk assessment rating, the Sangamon Valley Pwd Pcf Dam lacks detailed condition assessment information and emergency action plans. However, with its significant hazard potential, it is crucial to monitor and maintain this structure to prevent any potential risks to the surrounding area. The dam's buttress core type and uncontrolled spillway design add to its unique characteristics, making it a valuable asset for water resource and climate enthusiasts interested in understanding the complexities of dam infrastructure in the Sangamon Valley region.
Dam Length |
500 |
Dam Height |
18 |
River Or Stream |
OFFSTREAM SANGAMON R |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
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.
Sangamon Valley Pwd Pcf Dam