Memorial East Campus Lake Dam is an earth dam located in St. Clair County, Illinois, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 550 ft long, taller than 62% 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 Memorial East Campus Lake Dam
The primary purpose of Memorial East Campus Lake Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Land Trust 01-90-h315-00 (private). It impounds the Trib Rock Springs Branch near Shiloh.
The dam stands 28 feet tall and stretches 550 feet across, and has a maximum storage capacity of 55 acre-feet. Completed in 1958, 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 04/27/2022.
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Location
| State | Illinois |
| County | St. Clair |
| Nearest City | Shiloh |
| River/Stream | Trib Rock Springs Branch |
| Coordinates | 38.57245, -89.90202 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 550 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 30 acre-ft |
| Max Discharge | 60 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Land Trust 01-90-h315-00 |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/27/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50650 |
| Federal ID | IL50650 |
| More Info | State Dam Safety Program |