Larry Pilster #2 Reservoir Report
Last Updated: December 5, 2025
Larry Pilster #2 is a privately owned earth dam located in Carter, Montana, near Camp Crook, South Dakota.
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Summary
Completed in 1950, this dam serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 10 feet and a length of 300 feet, Larry Pilster #2 has a storage capacity of 232 acre-feet and a maximum storage capacity of 232 acre-feet. Situated on the TR-North Fork Willow Creek, this dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) with state permitting, inspection, and enforcement in place to ensure its safety and compliance.
Despite its low hazard potential, Larry Pilster #2 has not been rated for its condition assessment, indicating a need for further evaluation. The dam does not have an Emergency Action Plan (EAP) prepared, and its risk assessment and management measures are currently unspecified. Additionally, the dam lacks inundation maps and updated emergency contacts. However, with its state-regulated status and regular inspections, Larry Pilster #2 remains a vital resource for water management in the region. As water resource and climate enthusiasts, it is essential to monitor and assess the condition of this dam to ensure its long-term sustainability and safety for the surrounding community.
Located in Congressional District 00 of Montana, Larry Pilster #2 plays a crucial role in water management and conservation efforts in the area. As a privately owned structure, it highlights the importance of collaboration between private owners and state regulatory agencies in maintaining the integrity of water resources. With its historical significance and multi-purpose functionality, Larry Pilster #2 serves as a valuable asset for fire protection, livestock watering, and ecological preservation. By staying informed and engaged with the ongoing maintenance and assessment of this dam, water resource and climate enthusiasts can contribute to the sustainable management of this essential infrastructure for future generations.
Year Completed |
1950 |
Dam Length |
300 |
Dam Height |
10 |
River Or Stream |
TR-NORTH FORK WILLOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
232 |
Hazard Potential |
Low |
Nid Height |
10 |
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.
Larry Pilster #2