Van Conklin Dam #6 Reservoir Report

Last Updated: December 13, 2025

Van Conklin Dam #6, located in Wasco, Oregon, is a private dam with a height of 50 feet and a storage capacity of 197 acre-feet.


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Summary

Built in 2004, this earth dam serves a primary purpose that falls under the category of "Other." The dam has a low hazard potential and is currently classified as "Not Rated" in terms of its condition assessment.

Managed by the Oregon Water Resources Department, Van Conklin Dam #6 has state-regulated permitting, inspection, and enforcement processes in place. The dam features slide (sluice gate) outlet gates and is situated in the Portland District of the US Army Corps of Engineers. With its last inspection conducted in October 2020 and an inspection frequency of 6 years, this dam is equipped to meet regulatory standards and ensure public safety.

Water resource and climate enthusiasts will appreciate the strategic design and operational efficiency of Van Conklin Dam #6. Its location, structural attributes, and regulatory framework highlight the importance of responsible dam management in safeguarding water resources and mitigating potential environmental risks. As a key infrastructure element in the region, this dam plays a crucial role in water storage and management for the surrounding area.

Year Completed

2004

Dam Height

50

Primary Dam Type

Earth

Nid Storage

197

Outlet Gates

Slide (sluice gate)

Hazard Potential

Low

Nid Height

50
       
Seasonal Comparison

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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.