South Branch 13
Key Takeaway
South Branch 13 is classified as low hazard in Nebraska. It was completed in 1994 and is 32 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 26 ft (taller than 50.7% in NE) |
| Dam Length | 763 ft |
| Dam Type | Earth |
| Max Storage | 337 acre-ft |
| Normal Storage | 83 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 465 cfs |
| Year Completed | 1994 (32 years old) |
| NID ID | NE02474 |
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 12
Johnson, NE
Low Hazard 29 ftUpper Big Nemaha 1-B41
Johnson, NE
Significant Hazard 43 ftSouth Branch 45
Otoe, NE
Low Hazard 34 ftHeusman Dam
Johnson, NE
Low Hazard 26 ftLittle Nemaha 10
Otoe, NE
Low Hazard 41 ftSouth Branch 3-3
Otoe, NE
Low Hazard 29 ftUpper Big Nemaha J-15
Johnson, NE
Low Hazard 25 ftSouth Branch 63
Johnson, NE
Low Hazard 40 ftFrequently Asked Questions
What is the hazard classification of South Branch 13?
South Branch 13 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 13?
South Branch 13 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 13 built?
South Branch 13 was completed in 1994, making it 32 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 13?
South Branch 13 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 13?
South Branch 13 has a dam height of 26 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 13 last inspected?
South Branch 13 was last inspected on June 16, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.