Plum Creek 4-j is an earth dam located in Pawnee County, Nebraska, built in 1965. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 575 ft long, taller than 80% 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 Plum Creek 4-j
The primary purpose of Plum Creek 4-j 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 Lower Big Blue Natural Resources District (local government). It impounds the Tr-plum Creek near Liberty.
The dam stands 35 feet tall and stretches 575 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 146 acre-feet, and collects water from a drainage area of 0 square miles. 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/27/2022.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Nebraska |
| County | Pawnee |
| Nearest City | Liberty |
| River/Stream | Tr-plum Creek |
| Coordinates | 40.10724, -96.42904 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 33 ft |
| Dam Length | 575 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 146 acre-ft |
| Max Storage | 146 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,118 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Big Blue Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/27/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00767 |
| Federal ID | NE00767 |
| More Info | State Dam Safety Program |