Davis Reservoir Report

Last Updated: December 19, 2025

Davis is a privately owned irrigation structure located in Idaho, specifically in Valley County near the city of Payette River.


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Summary

This dam, completed in 1942, serves the primary purpose of irrigation for the surrounding area. It stands at a height of 34.3 feet, with a hydraulic height of 30 feet and a length of 1250 feet. The dam has a storage capacity of 1200 acre-feet and covers a surface area of 95 acres.

Despite being privately owned, Davis is regulated by the Idaho Department of Water Resources, with state permitting, inspection, and enforcement in place. The dam is considered to have significant hazard potential and fair condition, with the last inspection conducted in May 2017. While the risk assessment for Davis is moderate, there are no specific risk management measures or emergency action plans in place as of the latest data update in April 2021.

Water resource and climate enthusiasts interested in the infrastructure and management of dams like Davis in Idaho will find this data insightful. The details provided offer a glimpse into the history, design, and operational aspects of this irrigation structure, shedding light on its role in water management and potential risks associated with its condition and location. Further research and monitoring may be necessary to ensure the continued safety and efficiency of Davis for both irrigation purposes and environmental considerations.

Year Completed

1942

Dam Length

1250

Dam Height

34.3

River Or Stream

UNNAMED STREAMS BEAVER CREEK

Surface Area

95

Hydraulic Height

30

Nid Storage

1200

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

34
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.