Shoal Creek Structure 14 Dam Reservoir Report
Nearby: Ekiss Pond Dam 1 Johnson Pond Dam 1
Last Updated: December 6, 2025
Shoal Creek Structure 14 Dam, also known as Shoal Creek Structure Impoundment, is a private-owned earth dam located in Montgomery County, Illinois.
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Summary
Built in 1971 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the Middle Fork Shoal Creek. Standing at a height of 34 feet and a length of 615 feet, this buttress-type dam has a storage capacity of 131 acre-feet, with a normal storage level of 25 acre-feet.
Managed and regulated by the Illinois Department of Natural Resources (IDNR), Shoal Creek Structure 14 Dam has been designated as low hazard potential with a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 279 feet and is inspected every five years to ensure its safety and integrity. Despite the lack of available condition assessment data, the dam continues to operate effectively in reducing flood risks for the surrounding area. Overall, this dam serves as an essential component in managing water resources and mitigating climate-related risks in the region.
Year Completed |
1971 |
Dam Length |
615 |
Dam Height |
34 |
River Or Stream |
MIDDLE FORK SHOAL CREEK |
Primary Dam Type |
Earth |
Nid Storage |
131 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
Seasonal Comparison
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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.
Shoal Creek Structure 14 Dam