Peterson Creek Reservoir Reservoir Report

Last Updated: December 14, 2025

Peterson Creek Reservoir in Oregon serves as a vital water resource for irrigation, showcasing an impressive dam height of 25 feet and a storage capacity of 155 acre-feet.


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Summary

Completed in 1954, this Earth-type dam on Peterson Creek efficiently stores water for agricultural purposes in the region. The reservoir covers a surface area of 12.8 acres and has a maximum discharge capacity of 387 cubic feet per second.

Located in Crook County, Oregon, the reservoir is owned and regulated by a private entity, with state permitting, inspection, and enforcement in place to ensure its safe operation. The dam's low hazard potential and not rated condition assessment further highlight its reliability. The outlet gates are equipped with a slide (sluice gate) mechanism for water release, and the reservoir is situated within the jurisdiction of the Oregon Water Resources Department.

Water resource and climate enthusiasts will appreciate the strategic role of Peterson Creek Reservoir in sustaining agricultural activities in the area. With its efficient water storage capacity and state-regulated operations, the reservoir stands as a testament to responsible water management practices. Its location on Peterson Creek and its contributions to irrigation make it a significant asset for the region's agricultural community, reflecting a harmonious balance between human needs and environmental stewardship.

Year Completed

1954

Dam Length

580

Dam Height

25

River Or Stream

PETERSON CREEK

Primary Dam Type

Earth

Surface Area

12.8

Hydraulic Height

23

Drainage Area

9.5

Nid Storage

155

Structural Height

25

Outlet Gates

Slide (sluice gate)

Hazard Potential

Low

Nid Height

25
       
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.