Upper Big Nemaha G-34 is an earth dam located in Gage County, Nebraska, built in 1986. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 24 ft24 ft tall and 670 ft long. 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 Upper Big Nemaha G-34
Upper Big Nemaha G-34 is a dam in Gage, Nebraska. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-shaw Creek near Adams.
The dam stands 24 feet tall and stretches 670 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1986, the structure is 40 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 05/05/2021.
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Location
| State | Nebraska |
| County | Gage |
| Nearest City | Adams |
| River/Stream | Tr-shaw Creek |
| Coordinates | 40.47259, -96.57969 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 18 ft |
| Dam Length | 670 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 11 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 106 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/05/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02499 |
| Federal ID | NE02499 |
| More Info | State Dam Safety Program |