Marsh Lake Dam is an earth dam located in Stark County, Illinois, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 270 ft long, taller than 68% 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 Marsh Lake Dam
The primary purpose of Marsh Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by G. A. Marsh Estate (private). It impounds the Trib East Fork Spoon River near Modena.
The dam stands 30 feet tall and stretches 270 feet across, and has a maximum storage capacity of 115 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 05/03/2023.
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Location
| State | Illinois |
| County | Stark |
| Nearest City | Modena |
| River/Stream | Trib East Fork Spoon River |
| Coordinates | 41.16301, -89.72341 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 270 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 115 acre-ft |
| Max Storage | 115 acre-ft |
| Normal Storage | 70 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | G. A. Marsh Estate |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/03/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01158 |
| Federal ID | IL01158 |
| More Info | State Dam Safety Program |