Dry Fork Reservoir Report
Nearby: Siversten Maddox Ranch Corporation #1
Last Updated: December 6, 2025
Dry Fork Creek, located in Blaine, Montana, is home to the Dry Fork Dam, a significant irrigation structure completed in 1986.
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Summary
Owned privately, the dam serves multiple purposes including fire protection, stock watering, and irrigation, with a primary height of 45 feet and a storage capacity of 6229 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and has a spillway type of uncontrolled, with a spillway width unspecified.
With a hazard potential deemed significant and a moderate risk assessment rating, the Dry Fork Dam is a crucial water resource in the area. Despite not being condition-rated, the dam provides essential water management for the surrounding community. The last inspection took place in July 2006, and emergency action plans were last revised in March 2006. With its location in the Omaha District and under Congressional District 00 in Montana, the Dry Fork Dam stands as a vital infrastructure for water supply and management in the region, highlighting the importance of sustainable water resource practices in the face of changing climate conditions.
Year Completed |
1986 |
Dam Length |
1300 |
Dam Height |
45 |
River Or Stream |
DRY FORK CREEK |
Primary Dam Type |
Earth |
Surface Area |
406 |
Hydraulic Height |
36 |
Nid Storage |
6229 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
45 |
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.
Dry Fork