Vavra Semler Road Dam A Reservoir Report
Nearby: Vavra-Semler Dam B Dorchester 1-A
Last Updated: December 5, 2025
Vavra Semler Road Dam A, located in Crete, Nebraska, is a crucial structure designed by the USDA NRCS and Upper Big Blue NRD to mitigate flood risks in the region.
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Summary
Completed in 1975, this earth dam stands at a height of 21 feet and has a hydraulic height of 18 feet, providing flood risk reduction for the Johnson Creek watershed. With a storage capacity of 68 acre-feet and a drainage area of 0.6 square miles, this dam plays a vital role in managing stormwater runoff in the area.
Maintained by local government authorities and regulated by the NE DNR, Vavra Semler Road Dam A has undergone modifications in 1982 to enhance its hydraulic capabilities. The dam's condition assessment in 2017 deemed it satisfactory, ensuring its continued ability to protect the surrounding communities from potential flooding events. With a surface area of 4 acres and a normal storage capacity of 21 acre-feet, this earth dam serves as a critical infrastructure for water resource management in Saline County, Nebraska.
As a key component of the flood risk reduction strategy in the region, Vavra Semler Road Dam A not only provides essential protection against inundation but also contributes to the overall resilience of the local water resource infrastructure. With its strategic location and effective design, this dam exemplifies the collaborative efforts between various agencies to safeguard communities and properties from the impacts of extreme weather events. The continued maintenance and inspection of this structure ensure its reliability in managing stormwater flows and minimizing flood risks in the area.
Years Modified |
1982 - Hydraulic |
Year Completed |
1975 |
Dam Length |
540 |
Dam Height |
21 |
River Or Stream |
TR-JOHNSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
18 |
Drainage Area |
0.6 |
Nid Storage |
68 |
Structural Height |
21 |
Foundations |
Soil |
Nid Height |
21 |
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.
Vavra Semler Road Dam A