Hochstein Dam #3 Reservoir Report
Nearby: Cook Reservoir (Wash) Pierson-Upper
Last Updated: December 13, 2025
Hochstein Dam #3, located in Oregon, is a private dam regulated by the state agency OWRD.
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Summary
Its primary purpose is hydroelectric power generation, with additional functions including irrigation, navigation, and recreation. The dam has a height of 45 feet and a storage capacity of 65 acre-feet, making it a key infrastructure for water resource management in the region.
Despite its low hazard potential and the fact that it is not currently rated for condition assessment, Hochstein Dam #3 is subject to regular inspections every six years. The dam features needle outlet gates and is situated in a scenic location within Washington County. While it does not have associated structures or spillways, the dam plays a crucial role in supporting various water-related activities and industries in the area.
Managed by a private owner, Hochstein Dam #3 provides an example of how dams contribute to sustainable water management and energy production. Its strategic location in relation to the Portland District underscores its importance in both local and regional water resource and climate efforts. As water resource and climate enthusiasts, understanding the role of Hochstein Dam #3 can offer valuable insights into the interconnected nature of water infrastructure and environmental conservation.
Dam Height |
45 |
Nid Storage |
65 |
Outlet Gates |
Needle |
Hazard Potential |
Low |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tualatin River Near Dilley
|
1130cfs |
Willamette River At Newberg
|
52600cfs |
East Fork Dairy Creek Near Meacham Corner
|
21cfs |
Fanno Creek At Durham
|
36cfs |
Fanno Creek At 56th Ave
|
3cfs |
South Yamhill River At Mcminnville
|
8310cfs |
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.
Hochstein Dam #3