Trudell #1 Reservoir Report
Nearby: Elroy C Sowle Reservoir #2
Last Updated: December 13, 2025
Trudell #1, located in Richland, Montana, is a privately owned earth dam completed in 1955 with a primary purpose of fire protection, stock, or small fish pond.
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Summary
The dam stands at a height of 10 feet and has a storage capacity of 94 acre-feet. Situated on Otis Creek, this dam serves the community of Mohly and is regulated by the Montana Department of Natural Resources and Conservation.
Despite its low hazard potential, Trudell #1 has not been rated for its condition assessment. The dam has not undergone recent inspections, and emergency action plans and risk assessments are not readily available. However, with a maximum storage capacity of 94 acre-feet and a normal storage capacity of 40 acre-feet, Trudell #1 plays a crucial role in providing water for fire protection and livestock in the surrounding area.
For water resource and climate enthusiasts, Trudell #1 serves as a reminder of the vital role that small dams play in local communities. As climate change continues to impact water availability and quality, understanding the condition and maintenance of dams like Trudell #1 is essential for ensuring the safety and resilience of our water infrastructure in the face of evolving environmental challenges.
Year Completed |
1955 |
Dam Length |
375 |
Dam Height |
10 |
River Or Stream |
OTIS CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
94 |
Hazard Potential |
Low |
Nid Height |
10 |
Seasonal Comparison
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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.
Trudell #1