Upper Big Nemaha 13-c
Upper Big Nemaha 13-c is an earth dam located in Lancaster County, Nebraska, built in 1994. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Upper Big Nemaha 13-c
Upper Big Nemaha 13-c is a dam in Lancaster, Nebraska. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-mid Br Big Nemaha River near Firth.
The dam stands 35 feet tall and stretches 795 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 594 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1994, the structure is 32 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/10/2021.
At 35 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Nebraska |
| County | Lancaster |
| Nearest City | Firth |
| River/Stream | Tr-mid Br Big Nemaha River |
| Coordinates | 40.53681, -96.67553 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 30 ft |
| Dam Length | 795 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 594 acre-ft |
| Max Storage | 594 acre-ft |
| Normal Storage | 114 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 577 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/10/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02404 |
| Federal ID | NE02404 |
| More Info | State Dam Safety Program |