Omaha City Reservoir Dam
Omaha City Reservoir Dam is an earth dam located in Gallatin County, Illinois, built in 1965. It carries a Low hazard potential classification.
About Omaha City Reservoir Dam
The primary purpose of Omaha City Reservoir 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 Omaha Water Works (public utility). It impounds the Trib Bear Creek near Elba.
The dam stands 22 feet tall and stretches 966 feet across, and has a maximum storage capacity of 160 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 05/08/2024.
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Location
| State | Illinois |
| County | Gallatin |
| Nearest City | Elba |
| River/Stream | Trib Bear Creek |
| Coordinates | 37.89087, -88.32013 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 966 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Normal Storage | 136 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | OMAHA WATER WORKS |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/08/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00067 |
| Federal ID | IL00067 |
| More Info | State Dam Safety Program |