Lake Taylorville South Fork Sediment Basin Dam Reservoir Report
Last Updated: December 20, 2025
Lake Taylorville South Fork Sediment Basin Dam, also known as South Fork Sediment Basin Str.
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Summary
No. 1, is a vital water management structure located in Christian County, Illinois. Built in 2003 by the Natural Resources Conservation Service, this earth dam stands at a height of 17 feet and spans 5000 feet across the South Fork Sangamon River. Its primary purpose is debris control, serving to protect the surrounding area from potential sediment build-up and flooding.
With a storage capacity of 10,000 acre-feet, this dam plays a crucial role in managing water flow and maintaining ecological balance in the region. Despite its low hazard potential, the dam's moderate risk assessment underlines the importance of regular inspections and risk management measures. The presence of an uncontrolled spillway with a width of 1350 feet ensures the safe release of excess water during high flow events, further enhancing the dam's efficiency and safety measures.
Managed by the local government and regulated by the Illinois Department of Natural Resources, Lake Taylorville South Fork Sediment Basin Dam exemplifies the collaborative efforts required to safeguard water resources and mitigate climate-related risks. Its strategic location, design features, and operational protocols make it a key asset in ensuring the long-term sustainability of water management practices in the area.
Year Completed |
2003 |
Dam Length |
5000 |
Dam Height |
17 |
River Or Stream |
SOUTH FORK SANGAMON RIVER |
Primary Dam Type |
Earth |
Surface Area |
244.7 |
Drainage Area |
5.25 |
Nid Storage |
10000 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
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.
Lake Taylorville South Fork Sediment Basin Dam