Newton Power Station Lake Dam Reservoir Report
Last Updated: December 6, 2025
Newton Power Station Lake Dam, located in Ingraham, Illinois, is a significant earth dam with a height of 54 feet and a length of 1700 feet.
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Summary
Completed in 1975, the dam serves primarily for recreational purposes, offering a storage capacity of 49,600 acre-feet and a surface area of 1750 acres. The dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and integrity.
With a controlled spillway width of 880 feet, Newton Power Station Lake Dam has a maximum discharge capacity of 59,450 cubic feet per second, making it a crucial structure for managing water flow in the region. The dam is situated along Weather Creek and has a drainage area of 48 square miles. Despite its significant hazard potential, the condition assessment of the dam is currently not available, highlighting the importance of continued monitoring and risk management measures to ensure the safety of surrounding communities and the environment.
Managed by a public utility, Newton Power Station Lake Dam plays a vital role in providing recreational opportunities and water resource management in Jasper County, Illinois. Its strategic location and design by Sargent & Lundy Engineers make it a key infrastructure for flood control and water storage in the region. As climate change impacts become more pronounced, the dam's role in mitigating risks and ensuring water security for the community will be increasingly important, highlighting the need for ongoing maintenance and emergency preparedness efforts.
Year Completed |
1975 |
Dam Length |
1700 |
Dam Height |
54 |
River Or Stream |
WEATHER CREEK |
Primary Dam Type |
Earth |
Surface Area |
1750 |
Drainage Area |
48 |
Nid Storage |
49600 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
54 |
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.
Newton Power Station Lake Dam