Omaha Township Civic Center Dam is an earth dam located in Gallatin County, Illinois, built in 1980. It carries a Significant hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 450 ft long. 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 Omaha Township Civic Center Dam
The primary purpose of Omaha Township Civic Center Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Township of Omaha (local government). It impounds the Trib Bear Creek near Omaha.
The dam stands 18 feet tall and stretches 450 feet across, creates a reservoir covering 332 acres, and has a maximum storage capacity of 314 acre-feet. Completed in 1980, the structure is 46 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 08/09/2024.
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Location
| State | Illinois |
| County | Gallatin |
| Nearest City | Omaha |
| River/Stream | Trib Bear Creek |
| Coordinates | 37.89023, -88.31774 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 450 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 314 acre-ft |
| Max Storage | 314 acre-ft |
| Surface Area | 332 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Township of Omaha |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 08/09/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50036 |
| Federal ID | IL50036 |
| More Info | State Dam Safety Program |