South Branch 1-B
Key Takeaway
South Branch 1-B is classified as low hazard in Nebraska. It was completed in 1995 and is 31 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 44 ft (taller than 93.7% in NE) |
| Dam Length | 1,408 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 209 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 817 cfs |
| Year Completed | 1995 (31 years old) |
| NID ID | NE02453 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Nemaha Natural Resources District
Local Government
Nearby Dams
South Branch 52
Otoe, NE
Low Hazard 37 ftUpper Little Nemaha 42
Otoe, NE
Low Hazard 39 ftSouth Branch 11
Otoe, NE
Low Hazard 43 ftSouth Branch 58
Otoe, NE
Low Hazard 28 ftSouth Branch 7
Otoe, NE
Low Hazard 48 ftSouth Branch 8
Otoe, NE
Low Hazard 41 ftLittle Nemaha 10
Otoe, NE
Low Hazard 41 ftZiegler Creek Z-15
Otoe, NE
Low Hazard 34 ftFrequently Asked Questions
What is the hazard classification of South Branch 1-B?
South Branch 1-B is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates South Branch 1-B?
South Branch 1-B is owned by Nemaha Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Branch 1-B built?
South Branch 1-B was completed in 1995, making it 31 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of South Branch 1-B?
South Branch 1-B serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is South Branch 1-B?
South Branch 1-B has a dam height of 44 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was South Branch 1-B last inspected?
South Branch 1-B was last inspected on May 24, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.