Hruby Dam Reservoir Report
Nearby: Harry Ritz Detention Dam Rejda Dam
Last Updated: December 15, 2025
Hruby Dam, located in Valley, Nebraska, was completed in 1974 by the USDA NRCS and serves multiple purposes including fire protection, livestock watering, and a small fish pond.
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Summary
With a dam height of 11.6 feet and a storage capacity of 147.7 acre-feet, the earth dam also helps regulate flow on Cottonwood Creek. The dam's primary owner is private, but it is state-regulated by the Nebraska Department of Natural Resources.
Despite its low hazard potential and fair condition assessment, Hruby Dam is subject to regular state inspections and enforcement to ensure its safety and functionality. The dam spans 326 feet in length and covers a surface area of 20.2 acres, providing essential water resources for the surrounding area. Its location in the Omaha District and proximity to Arcadia make it a vital part of the local ecosystem and water management infrastructure.
Year Completed |
1974 |
Dam Length |
326 |
Dam Height |
11.6 |
River Or Stream |
COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Surface Area |
20.2 |
Hydraulic Height |
11.6 |
Drainage Area |
4.02 |
Nid Storage |
147.7 |
Structural Height |
11.6 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Loup River At Taylor
|
464cfs |
North Loup River Nr St Paul Nebr
|
2580cfs |
South Loup R At St. Michael
|
178cfs |
Middle Loup R. At St. Paul
|
1520cfs |
North Loup R At Brewster
|
495cfs |
Middle Loup River At Dunning
|
581cfs |
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.
Hruby Dam