Marseilles Power Canal Dam is a gravity dam located in LaSalle County, Illinois, built in 1911. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 229 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Marseilles Power Canal Dam
The primary purpose of Marseilles Power Canal Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Midwest Hydro, Inc. (private). It impounds the Marseilles Power Canal near Marseilles.
The dam stands 15 feet tall and stretches 229 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 8,259 square miles. Completed in 1911, the structure is over a century 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 06/01/2015. That was over 11 years ago.
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Location
| State | Illinois |
| County | LaSalle |
| Nearest City | Marseilles |
| River/Stream | Marseilles Power Canal |
| Coordinates | 41.32657, -88.71455 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 229 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 106 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 8,259 sq mi |
| Max Discharge | 4,500 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Midwest Hydro, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/01/2015 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50458 |
| Federal ID | IL50458 |
| More Info | State Dam Safety Program |