Patrick Lake Dam is an earth dam located in McDonough County, Illinois, built in 1946. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 445 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Patrick Lake Dam
The primary purpose of Patrick Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Rick Severs (private). It impounds the Trib Troublesome Creek near Macomb-offstream.
The dam stands 19 feet tall and stretches 445 feet across, and has a maximum storage capacity of 112 acre-feet. Completed in 1946, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 10/21/2024.
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Location
| State | Illinois |
| County | McDonough |
| Nearest City | Macomb-offstream |
| River/Stream | Trib Troublesome Creek |
| Coordinates | 40.41751, -90.63641 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 445 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 112 acre-ft |
| Max Storage | 112 acre-ft |
| Normal Storage | 70 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Rick Severs |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/21/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01183 |
| Federal ID | IL01183 |
| More Info | State Dam Safety Program |