Big Plum Creek
Big Plum Creek is an earth dam located in Dawson County, Nebraska, built in 1941. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Big Plum Creek
The primary purpose of Big Plum Creek 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 Central Nebraska Public Power & Irrigation District (public utility). It impounds the Supply Canal near Lexington.
The dam stands 74 feet tall and stretches 1,794 feet across, creates a reservoir covering 252 acres, and has a maximum storage capacity of 5,164 acre-feet. Completed in 1941, the structure is well-established, with more than 75 years of service.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/24/2022.
At 74 feet, this dam is taller than 97% of all dams in the United States.
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Location
| State | Nebraska |
| County | Dawson |
| Nearest City | Lexington |
| River/Stream | Supply Canal |
| Coordinates | 40.70090, -99.91958 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 74 ft |
| Dam Height | 74 ft |
| Dam Length | 1,794 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 5,164 acre-ft |
| Max Storage | 5,164 acre-ft |
| Normal Storage | 4,660 acre-ft |
| Surface Area | 252 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Central Nebraska Public Power & Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/24/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01026 |
| Federal ID | NE01026 |
| More Info | State Dam Safety Program |