Bull Pen #2 Reservoir Report
Nearby: Bull Pen #1 Lake Frances East Dam
Last Updated: January 11, 2026
Bull Pen #2 is a privately owned earth dam located in Pondera, Montana, near the city of Williams.
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Summary
Built in 1960, this dam serves multiple purposes including fire protection, stock watering, and a small fish pond. The dam stands at a height of 30 feet and has a storage capacity of 128 acre-feet, with a normal storage level of 74 acre-feet.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Bull Pen #2 is classified as a low hazard potential structure. Although the condition assessment is not rated, the dam has not been modified in recent years and is subject to regular state inspections and enforcement. The dam is situated on the TR-Ringwald Coulee river or stream, providing essential water resources for the surrounding area.
Despite its low hazard potential, Bull Pen #2 plays a crucial role in water resource management in the region. With its strategic location and multi-purpose design, this earth dam continues to serve the community by providing vital water sources for firefighting, livestock, and recreational activities. Climate and water resource enthusiasts will appreciate the historical significance and ongoing maintenance efforts of this essential infrastructure.
Year Completed |
1960 |
Dam Length |
400 |
Dam Height |
30 |
River Or Stream |
TR-RINGWALD COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
128 |
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.
Bull Pen #2