Amalgamated Sugar Reservoir Report
Last Updated: December 13, 2025
Amalgamated Sugar, located in Malheur, Oregon, is a privately owned water resource facility with a focus on off-channel storage.
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Summary
Completed in 1984, this earth dam stands at 11 feet tall with a storage capacity of 117 acre-feet. Despite its low hazard potential, the dam plays a crucial role in supporting various purposes such as tailings management and other water-related activities in the region.
Managed by the Oregon Water Resources Department, Amalgamated Sugar is subject to state regulations and inspections to ensure its structural integrity and compliance with safety standards. The dam's last inspection took place in August 2011, with a frequency of every 6 years. While the condition assessment is currently not rated, it is reassuring to know that emergency action plans are in place to address any potential risks or incidents that may arise.
With its strategic location and contribution to water resource management, Amalgamated Sugar serves as a vital asset in sustaining the local ecosystem and supporting agricultural activities in the region. This facility underscores the importance of responsible water resource management and highlights the role of private entities in ensuring the resilience of our water infrastructure in the face of climate challenges.
Year Completed |
1984 |
Dam Length |
1372 |
Dam Height |
11 |
River Or Stream |
OFF-CHANNEL STORAGE |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
9 |
Nid Storage |
117 |
Structural Height |
11 |
Hazard Potential |
Low |
Nid Height |
11 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Snake River At Nyssa Or
|
7810cfs |
Sand Run Gulch Nr Parma Id
|
36cfs |
Boise River Nr Parma Id
|
813cfs |
Dixie Drain Nr Wilder Id
|
52cfs |
Payette River Nr Payette Id
|
1970cfs |
Conway Gulch Below 1st St At Notus
|
11cfs |
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.
Amalgamated Sugar