Coal And Crane Creek Structure 12 Reservoir Report
Last Updated: December 20, 2025
Coal and Crane Creek Structure 12, located in LaGrange, Illinois, is a privately owned earth dam designed by the USDA NRCS and completed in 1971.
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Summary
The dam stands at a height of 43 feet and spans a length of 320 feet, with a storage capacity of 90 acre-feet. The primary purpose of this structure is listed as "Other," and it serves as a vital component for managing water resources in the area.
Managed by the Illinois Department of Natural Resources, Coal and Crane Creek Structure 12 is classified as having a high hazard potential due to its location on the TRIB BLUFF DITCH. The spillway type is uncontrolled with a width of 38 feet, and the dam is subject to regular state inspections and enforcement measures. Despite its moderate risk assessment rating, the condition assessment of the dam is currently listed as "Not Available," highlighting the importance of ongoing monitoring and maintenance efforts.
With its significant role in water resource management and potential risks associated with its high hazard potential, Coal and Crane Creek Structure 12 serves as a crucial infrastructure in Schuyler County, Illinois. Climate and water resource enthusiasts are encouraged to stay informed about the condition and regulatory oversight of this dam to ensure its continued safe operation and protection of surrounding communities and ecosystems.
Year Completed |
1971 |
Dam Length |
320 |
Dam Height |
43 |
River Or Stream |
TRIB BLUFF DITCH |
Primary Dam Type |
Earth |
Nid Storage |
90 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
43 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Ripley
|
33cfs |
Illinois River At Valley City
|
2970cfs |
Sangamon River Near Oakford
|
356cfs |
La Moine River At Colmar
|
17cfs |
Spoon River At Seville
|
161cfs |
Sangamon River At Petersburg
|
146cfs |
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.
Coal And Crane Creek Structure 12