South Branch 45
South Branch 45 is an earth dam located in Otoe County, Nebraska, built in 1990. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About South Branch 45
The primary purpose of South Branch 45 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 Br Little Nemaha River near Burr.
The dam stands 40 feet tall and stretches 1,150 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 524 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1990, the structure is 36 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 06/16/2021.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Burr |
| River/Stream | Tr-s Br Little Nemaha River |
| Coordinates | 40.53312, -96.35155 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 34 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 524 acre-ft |
| Max Storage | 524 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 461 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/16/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02351 |
| Federal ID | NE02351 |
| More Info | State Dam Safety Program |