Bowman-Spring Branch 1-C Reservoir Report
Last Updated: December 5, 2025
Bowman-Spring Branch 1-C is a key flood risk reduction structure located in Thayer, Nebraska, designed by the USDA NRCS in 1961.
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Summary
This earth dam stands at a height of 36 feet and has a storage capacity of 1157 acre-feet, serving its primary purpose of flood risk reduction effectively. Situated on Bowman Creek in the Omaha District, this 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, Bowman-Spring Branch 1-C has a low hazard potential and is deemed to be in satisfactory condition as of its last assessment in June 2016. With a drainage area of 4.3 square miles and a maximum discharge capability of 1435 cubic feet per second, this dam is equipped to handle significant water flow during peak periods. Its location in the heart of Nebraska's water resource management system makes it a vital asset for climate enthusiasts and water resource professionals alike.
Overall, Bowman-Spring Branch 1-C stands as a testament to effective flood risk reduction infrastructure, showcasing the collaborative efforts between local governments, regulatory agencies, and design experts. Boasting a solid construction history and a robust operational framework, this dam remains a cornerstone of water management in Thayer, Nebraska, and a shining example of proactive climate adaptation measures in action.
Year Completed |
1961 |
Dam Length |
1190 |
Dam Height |
36 |
River Or Stream |
BOWMAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
36 |
Hydraulic Height |
35 |
Drainage Area |
4.3 |
Nid Storage |
1157 |
Structural Height |
40 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Blue River Near Fairbury
|
230cfs |
Republican R At Scandia
|
110cfs |
Republican R Nr Hardy
|
97cfs |
Little Blue R At Hollenberg
|
70cfs |
Mill C At Washington
|
8cfs |
Republican R At Concordia
|
120cfs |
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.
Bowman-Spring Branch 1-C