White Line Reservoir Reservoir Report

Last Updated: December 5, 2025

White Line Reservoir, located in Klamath, Oregon, is a privately owned earth dam that was completed in 1959 for irrigation purposes.


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Summary

The reservoir has a storage capacity of 2,962 acre-feet and a surface area of 434 acres, drawing water from Swan Lake, a tributary to the area. With a low hazard potential and a condition assessment of 'Not Rated', the dam is regulated by the Oregon Water Resources Department and undergoes regular inspections to ensure its safety and integrity.

The White Line Reservoir dam stands at a height of 21 feet, with a hydraulic height of 19 feet and a structural height of 23 feet. The reservoir is designed to handle a maximum discharge of 1200 cubic feet per second, with a drainage area of 42 square miles. Despite its age, the dam has not been modified in recent years and is deemed to meet guidelines for emergency action plans, although details on risk assessment and management measures are not currently available.

Managed by private owners, White Line Reservoir serves as a crucial water resource for irrigation in the region. Its location in a remote area with no downstream settlement underscores its significance in providing water for agricultural purposes. With its robust infrastructure and regular state oversight, the reservoir continues to play a vital role in sustaining water supply for the surrounding area.

Year Completed

1959

Dam Length

300

Dam Height

21

River Or Stream

SWAN LAKE, TRIB TO

Primary Dam Type

Earth

Surface Area

434

Hydraulic Height

19

Drainage Area

42

Nid Storage

2962

Structural Height

23

Hazard Potential

Low

Nid Height

23
       
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.