Bowman-Spring Branch 3-D Reservoir Report
Last Updated: December 5, 2025
Bowman-Spring Branch 3-D is a local government-owned dam located in Thayer, Nebraska, designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.
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Summary
Completed in 1972, this earth dam stands at a height of 24 feet and has a structural height of 33 feet, with a length of 635 feet. Its primary purpose is flood risk reduction, with a normal storage capacity of 65 acre-feet and a maximum storage of 320 acre-feet.
Situated on the TR-Spring Br Rose Creek, Bowman-Spring Branch 3-D has a drainage area of 0.8 square miles and a maximum discharge of 1484 cubic feet per second. Despite its low hazard potential and satisfactory condition assessment, the dam is subject to regular inspections every five years. The surrounding area covers a surface area of 13 acres, providing essential flood protection to the local community in Reynolds. The dam's design and construction were funded and overseen by the Natural Resources Conservation Service, ensuring its structural integrity and operational efficiency for the benefit of water resource and climate enthusiasts in the region.
Year Completed |
1972 |
Dam Length |
635 |
Dam Height |
24 |
River Or Stream |
TR-SPRING BR ROSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
24 |
Drainage Area |
0.8 |
Nid Storage |
320 |
Structural Height |
33 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
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.
Bowman-Spring Branch 3-D