Sitz Reservoir Reservoir Report
Nearby: Beede North Beede South
Last Updated: December 13, 2025
Sitz Reservoir, located in Harney County, Oregon, is a privately owned water resource primarily used for irrigation purposes.
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Summary
The reservoir, completed in 1924, has a dam height of 22 feet and a storage capacity of 182 acre-feet, providing water for agricultural needs in the area. Situated on Warm Spring Creek, the reservoir covers an area of 17.8 acres and has a maximum discharge rate of 290 cubic feet per second.
Despite being classified as having a low hazard potential, Sitz Reservoir is regulated and inspected by the Oregon Water Resources Department to ensure its safety and functionality. The reservoir's condition is currently not rated, with the last inspection conducted in July 2018. While the emergency action plan status and risk assessment details are not provided, the reservoir's infrastructure and operations seem to meet the necessary guidelines to maintain its function as a vital water source in the region. For water resource and climate enthusiasts, Sitz Reservoir serves as a noteworthy example of sustainable water management in a challenging environment.
Year Completed |
1924 |
Dam Length |
370 |
Dam Height |
22 |
River Or Stream |
WARMSPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
17.8 |
Hydraulic Height |
17 |
Drainage Area |
1 |
Nid Storage |
182 |
Structural Height |
22 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
Sitz Reservoir
Middle Fork Malheur (Including Bluebucket Creek)