Upper Big Nemaha J-12a
Low HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Nebraska |
| County | Johnson |
| Nearest City | STERLING |
| River/Stream | TR N FK BIG NEMAHA RIVER |
| Coordinates | 40.50963, -96.41752 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 26 ft |
| Dam Length | 570 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 147 acre-ft |
| Max Storage | 147 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 787 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/24/2023 |
| Emergency Action Plan | Not Required |