Beyer Reservoir Reservoir Report

Last Updated: December 13, 2025

Beyer Reservoir, also known as Neil Beyer Dam, is a private-owned water resource located in Scotts Mills, Oregon.


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Summary

Built in 1968, this earth dam stands at a height of 36 feet and serves primarily for irrigation purposes along Beaver Creek. With a maximum storage capacity of 280 acre-feet and a normal storage of 220 acre-feet, Beyer Reservoir covers a surface area of 18 acres within a drainage area of 2 square miles.

Managed by the Natural Resources Conservation Service, Beyer Reservoir has a significant hazard potential and undergoes inspection every three years to ensure its structural integrity. The dam has a hydraulic height of 31 feet and a structural height of 37.5 feet, with a spillway type not specified. The reservoir's maximum discharge capacity is 240 cubic feet per second, making it essential for water management in the region.

Located in Clackamas County, Oregon, Beyer Reservoir plays a crucial role in the local irrigation system, providing water for agricultural activities in the area. With its strategic location and significant storage capacity, this reservoir is a vital part of the region's water resource infrastructure, highlighting the importance of proper maintenance and management to ensure its continued functionality and safety in the face of changing climate conditions.

Year Completed

1968

Dam Length

430

Dam Height

36

River Or Stream

BEAVER CREEK

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

31

Drainage Area

2

Nid Storage

280

Structural Height

37.5

Hazard Potential

Significant

Foundations

Soil

Nid Height

38
       
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.