Rose Reservoir Reservoir Report

Last Updated: December 13, 2025

Rose Reservoir, also known as Bill Rose Dam, is a privately owned water resource located in Clackamas, Oregon.


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Summary

Constructed in 1974, this earth dam stands at a height of 40 feet and serves primarily for irrigation purposes. With a maximum storage capacity of 350 acre-feet and a normal storage of 550 acre-feet, the reservoir covers a surface area of 29 acres and drains an area of 1.2 square miles.

Situated on a tributary to Rock Creek, Rose Reservoir boasts a spillway type of "Uncontrolled" and features a slide (sluice gate) for outlet gates. The dam has a significant hazard potential and is inspected every three years, with the last inspection conducted in December 2017. The risk assessment for the reservoir is moderate, with a DSAC (Dam Safety Action Classification) of 3. Despite being privately owned, the state of Oregon regulates and inspects the dam, ensuring its compliance with safety standards.

With its strategic location in Yoder, Oregon, Rose Reservoir plays a crucial role in supporting irrigation needs in the region. Its construction and management highlight the intersection of water resource management and climate adaptation, making it a significant site of interest for enthusiasts in these fields. The reservoir's design, capacity, and risk management measures contribute to its importance in ensuring water security and environmental sustainability in the area.

Year Completed

1974

Dam Length

450

Dam Height

40

River Or Stream

TRIB TO ROCK CREEK

Primary Dam Type

Earth

Surface Area

29

Hydraulic Height

31

Drainage Area

1.2

Nid Storage

550

Structural Height

35

Outlet Gates

Slide (sluice gate)

Hazard Potential

Significant

Nid Height

40
       
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.