Deep Creek Upper Reservoir Report

Last Updated: December 6, 2025

Deep Creek Upper, located in Oneida, Idaho, is a privately owned dam primarily used for irrigation purposes.


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Summary

Completed in 1906, this earth dam stands at a height of 36.3 feet and has a maximum storage capacity of 512 acre-feet. The dam, situated on Third Creek and Deep Creek, covers a surface area of 33 acres and serves a drainage area of 3.6 square miles.

With a spillway type classified as "Uncontrolled" and a hazard potential deemed "Significant", Deep Creek Upper poses moderate risk requiring careful risk management measures. Despite being in fair condition as of the last assessment in 2015, the dam undergoes inspections every two years to ensure its structural integrity. In case of emergencies, the dam is equipped with slide gates for outlet control. The dam's location in Malad City, Idaho, brings attention to the importance of maintaining and monitoring water resources in the region to mitigate potential hazards and ensure sustainable water management practices.

Year Completed

1906

Dam Length

500

Dam Height

36.3

River Or Stream

THIRD CREEK DEEP CREEK

Surface Area

33

Hydraulic Height

33

Drainage Area

3.6

Nid Storage

512

Outlet Gates

Slide (sluice gate)

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

36
       
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.