Summary
Built in 1941, this earthen dam serves multiple purposes, including fire protection, stock watering, and creating a small fish pond. With a height of 35 feet and a length of 450 feet, Primrose has a storage capacity of 179 acre-feet and a normal storage level of 65 acre-feet. It is situated on the TR-Redstone Creek and falls under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC).
Despite being categorized as having a low hazard potential, Primrose is regulated by the state and undergoes regular inspections, permitting, and enforcement actions. The dam has not been rated for its condition assessment, and there is no Emergency Action Plan (EAP) prepared or updated for the structure. The dam is not associated with any federal agencies, and there are no records of federal funding, design, construction, or operation related to Primrose. Overall, Primrose is a significant water resource for the local area, providing essential services for fire protection, livestock, and recreational use.
Year Completed |
1941 |
Dam Length |
450 |
Dam Height |
35 |
River Or Stream |
TR-REDSTONE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
35 |
Nid Storage |
179 |
Hazard Potential |
Low |
Nid Height |
35 |
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.
Primrose