South Branch 45 Reservoir Report
Nearby: Little Nemaha 10 South Branch 3-3
Last Updated: December 5, 2025
South Branch 45, located in Burr, Nebraska, is a key structure designed by USDA NRCS for flood risk reduction along the TR-S BR Little Nemaha River.
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Summary
This earth dam, completed in 1990, stands at a height of 34 feet and has a length of 1150 feet. With a storage capacity of 524 acre-feet and a drainage area of 1.9 square miles, the dam plays a crucial role in protecting the surrounding area from potential flooding events.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, South Branch 45 is deemed to have a low hazard potential and is in satisfactory condition as of the last assessment in June 2016. While the dam has not been modified in recent years, it undergoes inspections every five years to ensure its structural integrity. Despite its primary purpose being flood risk reduction, the dam also serves as a recreational spot with a surface area of 23 acres, offering a serene environment for water resource and climate enthusiasts to explore and appreciate the importance of water management infrastructure in safeguarding communities.
Year Completed |
1990 |
Dam Length |
1150 |
Dam Height |
34 |
River Or Stream |
TR-S BR LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
34 |
Drainage Area |
1.9 |
Nid Storage |
524 |
Structural Height |
40 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
South Branch 45