Staff #2 Reservoir Report
Nearby: Staff #1 Box Office
Last Updated: December 6, 2025
Staff #2 is a privately owned irrigation dam located in Lohman, Montana.
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Summary
Built in 1914, this Earth type dam stands at a height of 30 feet and has a length of 1000 feet, providing crucial water storage for the surrounding area. The dam has a normal storage capacity of 248 acre-feet and a maximum storage of 428 acre-feet, serving the primary purpose of irrigation.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Staff #2 is regulated and inspected regularly to ensure its safety and compliance with state regulations. With a low hazard potential and a condition assessment of "Not Rated," this dam plays a vital role in water resource management in the region. While the dam has not been rated for its condition, it is essential for maintaining water supply for agricultural purposes in the area.
Situated on Clear Creek offstream and under the jurisdiction of the state, Staff #2 is a key infrastructure for water management in the Blaine County area. With its historical significance dating back over a century, this dam continues to support the local farming community with reliable irrigation water supply. As a point of interest for water resource and climate enthusiasts, Staff #2 serves as a testament to the importance of sustainable water infrastructure in mitigating the impacts of changing environmental conditions.
Year Completed |
1914 |
Dam Length |
1000 |
Dam Height |
30 |
River Or Stream |
CLEAR CREEK OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
428 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Staff #2