Newton Power Station Lake Dam
Newton Power Station Lake Dam is an earth dam located in Jasper County, Illinois, built in 1975. It carries a Significant hazard potential classification.
About Newton Power Station Lake Dam
The primary purpose of Newton Power Station Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dynegy Midwest Generation, Inc. (public utility). It impounds the Weather Creek near Ingraham.
The dam stands 54 feet tall and stretches 1,700 feet across, creates a reservoir covering 1,750 acres, has a maximum storage capacity of 49,600 acre-feet, and collects water from a drainage area of 48 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 10/07/2025.
At 54 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Illinois |
| County | Jasper |
| Nearest City | Ingraham |
| River/Stream | Weather Creek |
| Coordinates | 38.88474, -88.30406 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 54 ft |
| Dam Height | 54 ft |
| Dam Length | 1,700 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 49,600 acre-ft |
| Max Storage | 49,600 acre-ft |
| Normal Storage | 28,500 acre-ft |
| Surface Area | 1,750 acres |
| Drainage Area | 48 sq mi |
| Max Discharge | 59,450 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | DYNEGY MIDWEST GENERATION, INC. |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 10/07/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL00664 |
| Federal ID | IL00664 |
| More Info | State Dam Safety Program |