South Branch 11 Reservoir Report
Nearby: Little Nemaha 10 South Branch 8
Last Updated: December 5, 2025
South Branch 11 is a local government-owned dam in Otoe County, Nebraska, designed by USDA NRCS and completed in 1987 for flood risk reduction along the TR-S FK Little Nemaha River.
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Summary
This Earth-type dam stands at 43 feet tall, with a hydraulic height of 40 feet and a length of 1185 feet. It has a storage capacity of 863 acre-feet, with a normal storage of 163 acre-feet and a drainage area of 2.8 square miles.
Located in BURR, Nebraska, this dam has a low hazard potential and is in satisfactory condition as of its last inspection in June 2020. It is regulated by the NE DNR and undergoes regular state inspection, permitting, and enforcement. With a history of successful flood risk reduction and a solid structural assessment, South Branch 11 serves as a vital infrastructure for managing water resources and climate challenges in the region.
Year Completed |
1987 |
Dam Length |
1185 |
Dam Height |
43 |
River Or Stream |
TR-S FK LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
28 |
Hydraulic Height |
40 |
Drainage Area |
2.8 |
Nid Storage |
863 |
Structural Height |
43 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
43 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Salt Creek At Roca
|
5cfs |
Stevens Creek Nr. Lincoln
|
3cfs |
Salt Creek At Pioneers Blvd At Lincoln
|
11cfs |
Salt Creek At Lincoln
|
77cfs |
Salt Creek At 70th St. At Lincoln
|
92cfs |
Missouri River At Nebraska City
|
24100cfs |
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 11