Elko Percolation Pond 1a Dam Reservoir Report
Last Updated: December 15, 2025
Elko Percolation Pond 1a Dam, located in Elko, Nevada, is a vital structure managed by the local government for water resource management.
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Summary
This earth-type dam stands at a height of 10 feet and serves multiple purposes, including irrigation. With a storage capacity of 160 acre-feet and a surface area of 32 acres, the dam plays a crucial role in regulating water flow from the Humboldt River-OS.
Despite its low hazard potential, the dam is subject to regular inspections, with the last assessment conducted in August 2017. While the condition of the dam is currently not rated, its risk assessment is classified as high. The structure is equipped with two controlled outlet gates for water management. As climate change continues to impact water resources, the Elko Percolation Pond 1a Dam serves as a critical asset for water conservation and irrigation in the region, under the regulatory oversight of the Nevada Division of Water Resources.
Dam Length |
4450 |
Dam Height |
10 |
River Or Stream |
HUMBOLDT RIVER-OS |
Primary Dam Type |
Earth |
Surface Area |
32 |
Hydraulic Height |
35 |
Drainage Area |
0.2 |
Nid Storage |
160 |
Structural Height |
38 |
Outlet Gates |
Other Controlled - 2 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
S F Humboldt R Ab Dixie C Nr Elko
|
16cfs |
Humboldt R Nr Carlin
|
32cfs |
S Fk Humboldt R Abv Tenmile Ck Nr Elko
|
33cfs |
Humboldt R Nr Elko
|
12cfs |
Susie Creek At Carlin
|
1cfs |
Maggie Ck At Carlin
|
12cfs |
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.
Elko Percolation Pond 1a Dam