Sullivan Lake Dam is an earth dam located in Fulton County, Illinois, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 300 ft long, taller than 78% 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 Sullivan Lake Dam
The primary purpose of Sullivan Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Traska (private). It impounds the Trib Gaines Branch near Ray.
The dam stands 34 feet tall and stretches 300 feet across, and has a maximum storage capacity of 75 acre-feet. Completed in 1965, the structure is well into its service life at over 50 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 05/20/2024.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Illinois |
| County | Fulton |
| Nearest City | Ray |
| River/Stream | Trib Gaines Branch |
| Coordinates | 40.22906, -90.44311 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 300 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 57 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | John Traska |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/20/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01187 |
| Federal ID | IL01187 |
| More Info | State Dam Safety Program |