Plum Creek Golf Course Lake Dam is an earth dam located in Scott County, Illinois, built in 1994. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 400 ft long, taller than 65% of U.S. dams with a recorded height. 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 Plum Creek Golf Course Lake Dam
The primary purpose of Plum Creek Golf Course Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Great Scott Golf, Inc. (private). It impounds the Plum Creek.
The dam stands 29 feet tall and stretches 400 feet across, and has a maximum storage capacity of 90 acre-feet. Completed in 1994, the structure is 32 years old.
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 08/15/2025.
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Location
| State | Illinois |
| County | Scott |
| Nearest City | None |
| River/Stream | Plum Creek |
| Coordinates | 39.68559, -90.47915 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 400 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 49 acre-ft |
| Max Discharge | 716 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Great Scott Golf, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/15/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50328 |
| Federal ID | IL50328 |
| More Info | State Dam Safety Program |