Smith-Bybee Lakes Reservoir Report
Last Updated: December 13, 2025
Smith-Bybee Lakes, located in Multnomah County, Oregon, is a captivating destination for water resource and climate enthusiasts.
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Summary
This fish and wildlife pond serves as a critical habitat for various species, offering a serene environment for both residents and visitors to enjoy. The dam at Smith-Bybee Lakes, completed in 1981, stands at a height of 14 feet and has a maximum storage capacity of 4100 acre-feet, providing essential water resources for the surrounding area.
With a surface area of 839 acres and a drainage area of 6.2 square miles, Smith-Bybee Lakes plays a crucial role in managing water flow and maintaining ecological balance in the region. The dam's low hazard potential and state-regulated status ensure the safety and sustainability of this vital water resource. Despite being not rated for condition assessment, Smith-Bybee Lakes continues to be a valuable asset for wildlife conservation and recreational activities in the area.
The picturesque setting of Smith-Bybee Lakes, nestled along the Columbia Slough, offers a peaceful retreat for nature lovers and outdoor enthusiasts. Managed by the local government, this concrete dam serves as a cornerstone for water management and conservation efforts in the region. Whether you're interested in birdwatching, fishing, or simply enjoying the beauty of nature, Smith-Bybee Lakes is a must-visit destination for those passionate about water resources and climate conservation.
Year Completed |
1981 |
Dam Length |
100 |
Dam Height |
14 |
River Or Stream |
COLUMBIA SLOUGH |
Primary Dam Type |
Concrete |
Surface Area |
839 |
Hydraulic Height |
11 |
Drainage Area |
6.2 |
Nid Storage |
4100 |
Structural Height |
14 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Smith-Bybee Lakes
Columbia Slough