Lammers #1 Reservoir Report
Nearby: Deadmans Basin Water Supply Canal Storage Reservoir #6 Deadmans Basin Water Supply Canal Storage Reservoir #2
Last Updated: December 5, 2025
Lammers #1 is a privately owned irrigation dam located in Lavina, Montana along the Careless Creek.
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Summary
Completed in 1984, this structure stands at a height of 25 feet and has a storage capacity of 292 acre-feet. With a surface area of 34 acres and a drainage area of 1.26 square miles, Lammers #1 serves as a vital resource for agricultural water supply in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Lammers #1 is regulated and inspected by the state to ensure its safety and functionality. Despite being classified as low hazard potential, the dam's condition assessment is currently not rated. The dam has not undergone any modification or assessment for emergency preparedness, indicating potential areas for improvement in risk management and safety protocols.
Located in Wheatland County, Lammers #1 plays a crucial role in supporting irrigation activities in the area. Water resource and climate enthusiasts monitoring the dam's condition and regulatory oversight can gain valuable insights into the challenges and opportunities associated with managing water infrastructure in Montana. As efforts continue to enhance the dam's safety and emergency response preparedness, stakeholders can look forward to a more resilient water resource infrastructure in the region.
Year Completed |
1984 |
Dam Length |
670 |
Dam Height |
25 |
River Or Stream |
UT, Careless Creek |
Surface Area |
34 |
Drainage Area |
1.26 |
Nid Storage |
292 |
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.
Lammers #1