Poison Creek Dam Reservoir Report
Nearby: Pons Lake Reservoir Buffalo Lake Dam
Last Updated: December 13, 2025
Poison Creek Dam in Oregon, managed by the Bureau of Land Management, serves as a vital habitat for fish and wildlife in the area.
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Summary
Completed in 1999, this gravity dam stands at a height of 21 feet with a hydraulic height of 16 feet and a length of 290 feet. The dam's primary purpose is to create a fish and wildlife pond, providing a surface area of 15.73 acres and a storage capacity of 187 acre-feet.
With a low hazard potential and a satisfactory condition assessment, Poison Creek Dam poses minimal risk to surrounding areas. The dam features a controlled spillway and a slide outlet gate for efficient water management. Despite being modified in 2006 for structural improvements, the dam continues to meet safety guidelines, with inspections conducted every 5 years to ensure its continued functionality.
Located in Grant County, Oregon, the Poison Creek Dam plays a crucial role in supporting the local ecosystem and maintaining water resources for the region. As a key component in the conservation of fish and wildlife, this dam stands as a testament to responsible water management practices in the face of a changing climate.
Years Modified |
2006 - Structural |
Year Completed |
1999 |
Dam Length |
290 |
River Or Stream |
Poison Creek |
Primary Dam Type |
Gravity |
Surface Area |
15.73 |
Hydraulic Height |
16 |
Drainage Area |
5.95 |
Nid Storage |
187 |
Structural Height |
21 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
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.
Poison Creek Dam