Upper Big Nemaha 15-a
Low HazardPoor ConditionEmergency Action Plan: Not Required
Location
| State | Nebraska |
| County | Lancaster |
| Nearest City | FIRTH |
| River/Stream | TR-MID BR BIG NEMAHA RIVER |
| Coordinates | 40.55943, -96.69763 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 20 ft |
| Dam Length | 662 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 242 acre-ft |
| Max Storage | 242 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,402 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/10/2021 |
| Emergency Action Plan | Not Required |