Coal And Crane Creek Structure 1 Reservoir Report
Last Updated: December 20, 2025
Coal and Crane Creek Structure 1, located in Schuyler, Illinois, is a privately owned earth dam designed by USDA NRCS and completed in 1971.
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Summary
The dam, standing at 40 feet tall and 500 feet long, serves as a crucial water management infrastructure for the TRIB COAL CREEK DITCH. The primary purpose of this structure is listed as "Other," with a low hazard potential and a moderate risk assessment rating.
Managed by the Illinois Department of Natural Resources, Coal and Crane Creek Structure 1 is state regulated, permitted, inspected, and enforced. The dam features an uncontrolled spillway, outlet gates, and a buttress core type. With a storage capacity of 150 acre-feet and a normal storage level of 70 acre-feet, this dam plays a vital role in flood control and water resource management in the region. Despite its age, the condition assessment of the dam is currently listed as "Not Available," with the last inspection conducted in September 2020.
For water resource and climate enthusiasts, Coal and Crane Creek Structure 1 presents an intriguing case study of a privately owned earth dam that continues to provide essential water management functions in Illinois. With its design by USDA NRCS and state regulation by IDNR, this structure showcases the collaboration between different agencies to ensure the safety and efficiency of water infrastructure. The detailed data on the dam's specifications, regulatory status, and risk assessment rating offer valuable insights into the challenges and importance of maintaining such critical infrastructure in the face of changing climate conditions.
Year Completed |
1971 |
Dam Length |
500 |
Dam Height |
40 |
River Or Stream |
TRIB COAL CREEK DITCH |
Primary Dam Type |
Earth |
Nid Storage |
150 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Ripley
|
14cfs |
Sangamon River Near Oakford
|
421cfs |
Illinois River At Valley City
|
4980cfs |
Spoon River At Seville
|
168cfs |
La Moine River At Colmar
|
17cfs |
Sangamon River At Petersburg
|
209cfs |
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 1