Oberg Reservoir Reservoir Report

Last Updated: December 13, 2025

Located in Yamhill, Oregon, Oberg Reservoir is a privately owned dam that serves as a recreational spot for water resource and climate enthusiasts.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1970, this Earth dam stands at a height of 35 feet and has a storage capacity of 80 acre-feet. With a surface area of 1.2 acres and a drainage area of 0.1 square miles, the reservoir offers a serene escape for visitors looking to enjoy the picturesque surroundings.

The dam's primary purpose is for recreation, offering activities such as fishing, boating, and wildlife observation. The reservoir is regulated by the Oregon Water Resources Department, ensuring that it meets safety and environmental standards. Despite its low hazard potential and a condition assessment of "Not Rated," regular inspections are conducted every 6 years to maintain the dam's integrity and safety measures.

Surrounded by the beauty of the Yamhill River, Oberg Reservoir provides a tranquil setting for outdoor enthusiasts to appreciate the natural landscape and engage in water-related activities. Whether exploring the area for leisure or studying its ecological significance, this reservoir offers a unique opportunity to connect with nature and appreciate the importance of water resources in sustaining our environment.

Year Completed

1970

Dam Length

950

Dam Height

35

River Or Stream

YAMHILL RIVER, TRIB TO

Primary Dam Type

Earth

Surface Area

1.2

Hydraulic Height

30

Drainage Area

0.1

Nid Storage

80

Structural Height

38

Hazard Potential

Low

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.