E Wasson #2 Reservoir Report
Nearby: E Wasson #1 Austin #2
Last Updated: December 5, 2025
E Wasson #2 is a privately owned dam located in Malta, Montana, along the TR-AUSTIN COULEE river.
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Summary
Completed in 1947, this earth dam stands at a height of 20 feet and has a storage capacity of 117 acre-feet, primarily serving purposes such as fire protection, stock watering, and small fish pond management. Despite its low hazard potential, the dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC), with state jurisdiction, permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
The dam's location in Phillips County, Montana, under the oversight of the Omaha District of the US Army Corps of Engineers, reflects its significance in local water resource management. The primary owner of E Wasson #2 remains private, with no federal agency involvement in funding, design, construction, or operation. While the dam's condition is currently not rated, its emergency action plan status and risk management measures are yet to be determined, highlighting the importance of ongoing monitoring and assessment to ensure the safety of the structure and surrounding areas in case of emergencies or adverse events.
For water resource and climate enthusiasts, E Wasson #2 presents a unique case study in the intersection of private ownership, state regulation, and community resilience in managing water infrastructure. As a key component of the local landscape, this dam serves multiple purposes while being subject to state oversight and inspections, emphasizing the need for continued collaboration between private owners, regulatory agencies, and the broader community to safeguard water resources and mitigate potential risks associated with dam operations.
Year Completed |
1947 |
Dam Length |
200 |
Dam Height |
20 |
River Or Stream |
TR-AUSTIN COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
117 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
E Wasson #2