Upper Big Nemaha 20-B
Nebraska — Johnson County — TR-N FK BIG NEMAHA RIVER
Location
| State | Nebraska |
| County | Johnson |
| River | TR-N FK BIG NEMAHA RIVER |
| Coordinates | 40.51432, -96.44885 |
Physical Characteristics
| NID Height | 42 ft |
| Dam Height | 38 ft |
| Dam Length | 1,127 ft |
| NID Storage | 430 acre-ft |
| Max Storage | 430 acre-ft |
| Surface Area | 24 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | June 16, 2021 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1973 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Nemaha Natural Resources District |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.