South Branch 7
South Branch 7 is an earth dam located in Otoe County, Nebraska, built in 1992. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About South Branch 7
The primary purpose of South Branch 7 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-s Fk Little Nemaha River near Burr.
The dam stands 61 feet tall and stretches 2,290 feet across, creates a reservoir covering 53 acres, has a maximum storage capacity of 3,186 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1992, the structure is 34 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 05/24/2021.
At 61 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Burr |
| River/Stream | Tr-s Fk Little Nemaha River |
| Coordinates | 40.57065, -96.36876 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 61 ft |
| Dam Height | 48 ft |
| Dam Length | 2,290 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 3,186 acre-ft |
| Max Storage | 3,186 acre-ft |
| Normal Storage | 412 acre-ft |
| Surface Area | 53 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 5,322 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/24/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02377 |
| Federal ID | NE02377 |
| More Info | State Dam Safety Program |