Concord Reservoir Dam is an earth dam located in Morgan County, Illinois, built in 1910. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 514 ft long, taller than 55% 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 Concord Reservoir Dam
The primary purpose of Concord Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by St. Luke Church (private). It impounds the Trib Lick Branch near Arenzville.
The dam stands 26 feet tall and stretches 514 feet across, and has a maximum storage capacity of 203 acre-feet. Completed in 1910, 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 07/02/2021.
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Location
| State | Illinois |
| County | Morgan |
| Nearest City | Arenzville |
| River/Stream | Trib Lick Branch |
| Coordinates | 39.80633, -90.34383 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 514 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 203 acre-ft |
| Max Storage | 203 acre-ft |
| Normal Storage | 159 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | St. Luke Church |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/02/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00707 |
| Federal ID | IL00707 |
| More Info | State Dam Safety Program |