Summary
Situated on TR-COAL CREEK in the city of POPLAR, this dam has a height of 27 feet and a length of 100 feet, with a storage capacity of 31 acre-feet and a drainage area of 1.7 square miles. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition and lacks recent inspection data.
Managed by the state regulatory agency DNRC, Bjarne #2 is subject to state jurisdiction, permitting, inspection, and enforcement. With a spillway width of 80 feet and a maximum discharge of 300 cubic feet per second, this dam serves as a crucial infrastructure for water resource management in the region. Although it has not been modified in recent years and lacks an Emergency Action Plan (EAP), the dam meets regulatory guidelines and plays a vital role in mitigating the risk of flooding and ensuring water availability for various purposes.
With its strategic location and purposeful design, Bjarne #2 stands as a testament to sustainable water management practices in Montana. As a key component of the local water infrastructure, this dam not only provides essential services for fire protection and livestock but also supports the conservation of aquatic habitats. While there are areas for improvement such as condition assessment and emergency preparedness, Bjarne #2 exemplifies the importance of collaboration between private owners, government agencies, and community stakeholders in safeguarding water resources and adapting to the challenges of climate change.
Year Completed |
1951 |
Dam Length |
100 |
Dam Height |
27 |
River Or Stream |
TR-COAL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Drainage Area |
1.7 |
Nid Storage |
31 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Bjarne #2