South Branch 13 Reservoir Report
Last Updated: December 6, 2025
South Branch 13 is a local government-owned earth dam located in Brock, Nebraska, along the TR-SAUNDERS CREEK.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1994 by the USDA NRCS, this dam stands at a height of 26 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 337 acre-feet and a drainage area of 1.1 square miles, South Branch 13 plays a crucial role in mitigating flood risks in the area.
Managed by the Nebraska Department of Natural Resources, South Branch 13 has a low hazard potential and is considered to be in satisfactory condition as of its last inspection in June 2016. The dam has a structural height of 30 feet and a hydraulic height of 25 feet, providing essential flood protection to the community. Despite its age, South Branch 13 continues to meet regulatory standards and undergoes inspections every five years to ensure its effectiveness in flood risk reduction.
With its stone core and soil foundation, South Branch 13 is a vital infrastructure for flood control in Johnson County, Nebraska. Alongside its flood risk reduction benefits, the dam also contributes to the conservation and management of water resources in the region. As climate change impacts become more pronounced, the role of structures like South Branch 13 in maintaining water security and resilience against extreme weather events becomes increasingly significant for the local community and beyond.
Year Completed |
1994 |
Dam Length |
763 |
Dam Height |
26 |
River Or Stream |
TR-SAUNDERS CREEK |
Primary Dam Type |
Earth |
Surface Area |
18 |
Hydraulic Height |
25 |
Drainage Area |
1.1 |
Nid Storage |
337 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Salt Creek At Roca
|
5cfs |
Salt Creek At Pioneers Blvd At Lincoln
|
11cfs |
Stevens Creek Nr. Lincoln
|
3cfs |
Little Nemaha River At Auburn
|
82cfs |
Missouri River At Nebraska City
|
24100cfs |
Salt Creek At Lincoln
|
77cfs |
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 13