Douglas Creek Dam Reservoir Report
Last Updated: December 5, 2025
Located in Granite, Montana, the Douglas Creek Dam is a privately-owned structure that sits on Douglas Creek.
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Summary
Completed in 1968, this earth-type dam stands 20 feet tall and stretches 200 feet in length, with a storage capacity of 117 acre-feet. The primary purpose of this dam is categorized as 'Other', with a low hazard potential and a current condition assessment of 'Not Rated'.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), the Douglas Creek Dam is regulated, permitted, inspected, and enforced by the state. Despite its low hazard potential, the dam has not been rated for its condition, and important emergency action plan details such as preparedness, revision dates, and guidelines adherence remain unspecified. With its tranquil location in the city of Stone, this dam serves as a vital water resource for the region and contributes to the overall management of the Douglas Creek watershed.
Year Completed |
1968 |
Dam Length |
200 |
Dam Height |
20 |
River Or Stream |
DOUGLAS CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
117 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Boulder Creek At Maxville Mt
|
79cfs |
Flint Creek At Maxville Mt
|
235cfs |
Flint Creek Near Drummond Mt
|
109cfs |
Clark Fork At Goldcreek Mt
|
248cfs |
Clark Fork Near Drummond Mt
|
469cfs |
Little Blackfoot River Near Garrison Mt
|
117cfs |
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.
Douglas Creek Dam