Bowman-Spring Branch 1-B Reservoir Report
Last Updated: December 5, 2025
Bowman-Spring Branch 1-B is a local government-owned earth dam located in Hubbell, Nebraska, designed by the USDA NRCS with a primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1962, this dam stands at a height of 31 feet and has a hydraulic height of 30 feet, serving to protect the surrounding area from potential flooding events. With a storage capacity of 1569 acre-feet and a surface area of 43 acres, Bowman-Spring Branch 1-B plays a crucial role in managing water resources in the region.
Situated on TR-Bowman Creek in Thayer County, Nebraska, this dam has a drainage area of 4.2 square miles and a maximum discharge of 2912 cubic feet per second. Despite its low hazard potential and satisfactory condition assessment as of June 2018, Bowman-Spring Branch 1-B undergoes inspections every 5 years to ensure its continued effectiveness in flood risk mitigation. Operated by the Natural Resources Conservation Service, this dam remains an essential infrastructure for water resource management and climate resilience in the area.
With its stone core and soil foundation, Bowman-Spring Branch 1-B stands as a testament to the collaborative efforts between local government and federal agencies in safeguarding communities against the impacts of extreme weather events. The dam's presence not only reduces the risk of flooding but also highlights the importance of proactive infrastructure planning in the face of a changing climate. As water resource and climate enthusiasts, recognizing the vital role of structures like Bowman-Spring Branch 1-B sheds light on the interconnectedness of water management, climate adaptation, and community resilience.
Year Completed |
1962 |
Dam Length |
1354 |
Dam Height |
31 |
River Or Stream |
TR-BOWMAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
43 |
Hydraulic Height |
30 |
Drainage Area |
4.2 |
Nid Storage |
1569 |
Structural Height |
38 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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-B