E Wasson #1 Reservoir Report
Nearby: E Wasson #2 Austin #2
Last Updated: December 5, 2025
E Wasson #1 is a private earth dam located in Malta, Montana, on the Austin Coulee river.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1948, this dam primarily serves the purposes of fire protection, stock watering, and as a small fish pond, with a storage capacity of 193 acre-feet. The dam has a height of 25 feet and a length of 150 feet, providing vital water resources in a low hazard potential setting.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), E Wasson #1 is regulated, permitted, inspected, and enforced by the state agency to ensure its safe operation. With a condition assessment of "Not Rated" and a low hazard potential, the dam has not been modified over the years and does not currently have an emergency action plan in place. Despite its limited risk, the dam plays a crucial role in water resource management and climate adaptation efforts in the region.
As a key infrastructure for fire protection and water supply, E Wasson #1 contributes to the sustainable use of water resources in the area, supporting both agricultural and environmental needs. The dam's presence on the Austin Coulee river highlights the importance of efficient water management in mitigating the impacts of climate change and enhancing resilience in the face of water-related challenges.
Year Completed |
1948 |
Dam Length |
150 |
Dam Height |
25 |
River Or Stream |
AUSTIN COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
193 |
Hazard Potential |
Low |
Nid Height |
25 |
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 #1