Valmy Dam Evaporation Pond B Reservoir Report
Last Updated: December 15, 2025
Valmy Dam Evaporation Pond B, located in Humboldt County, Nevada, serves as a crucial component in managing water resources in the region.
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Summary
Constructed in 1979, this Earth-type dam stands at a height of 15 feet and has a storage capacity of 219 acre-feet, with a normal storage level of 167 acre-feet. The dam covers a surface area of 26.5 acres and is situated along the Humboldt River, providing essential water management functions.
With a low hazard potential and fair condition assessment, Valmy Dam Evaporation Pond B plays a vital role in water conservation and regulation. Although it does not feature a spillway, the dam is equipped with other controlled outlet gates for efficient water release. In 2009, structural modifications were made to enhance its operational capabilities. The dam is under the regulatory oversight of the Nevada Department of Water Resources, ensuring compliance with state regulations and inspection requirements.
Valmy Dam Evaporation Pond B is a key infrastructure asset in the area, contributing to the overall water management strategies and climate resilience efforts. With its strategic location and design features, this dam exemplifies the importance of sustainable water resource management practices. As a public utility-owned structure, it underscores the collaborative efforts between government agencies and stakeholders to safeguard water resources for future generations.
Years Modified |
2009 - Structural |
Year Completed |
1979 |
Dam Length |
4000 |
Dam Height |
15 |
River Or Stream |
HUMBOLDT RIVER-OS |
Primary Dam Type |
Earth |
Surface Area |
26.5 |
Hydraulic Height |
13 |
Drainage Area |
0.1 |
Nid Storage |
219 |
Structural Height |
15 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
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.
Valmy Dam Evaporation Pond B