Kelly Creek Regional Detention Pond Reservoir Report

Last Updated: December 13, 2025

Kelly Creek Regional Detention Pond, located in Multnomah County, Oregon, serves as a crucial water resource infrastructure managed by local government authorities.


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Summary

This earth dam structure, standing at a height of 20 feet, primarily functions for irrigation purposes, with a storage capacity of 67 acre-feet. Despite being classified as having a low hazard potential, the detention pond is regulated and inspected by the Oregon Water Resources Department to ensure its safety and compliance with state regulations.

Situated within the Portland District, Kelly Creek Regional Detention Pond plays a vital role in managing stormwater runoff and preventing flooding in the surrounding area. While the dam has not been rated for condition assessment, regular inspections are conducted every six years to monitor its integrity and functionality. The facility's emergency action plan and risk management measures are currently not specified, indicating a potential area for improvement in enhancing preparedness for any unforeseen events.

As water resource and climate enthusiasts, the Kelly Creek Regional Detention Pond presents an intriguing case study in sustainable water management practices and infrastructure development. With its strategic location and purposeful design, this detention pond serves as a valuable asset in supporting irrigation needs while mitigating flood risks in the region. Monitoring its condition, emergency preparedness, and risk assessment measures will be crucial in ensuring the long-term effectiveness and resilience of this essential water resource facility.

Dam Height

20

Primary Dam Type

Earth

Nid Storage

67

Hazard Potential

Low

Nid Height

20
       
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.
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Area Campgrounds