Big Timber #53 Reservoir Report
Nearby: Montana #31 H Stensvad #2
Last Updated: December 5, 2025
Big Timber #53, located in Forsyth, Montana, is a privately owned earth dam constructed in 1954 by the USDA NRCS for purposes such as fire protection, stock, and small fish pond.
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Summary
The dam stands at a height of 20 feet and has a length of 450 feet, with a storage capacity of 247 acre-feet. Situated on East Blacktail Creek, the dam serves for water resource management in the area while also contributing to fire protection and livestock needs.
Managed by the DNRC, Big Timber #53 is classified as having low hazard potential and a moderate risk level. With a drainage area of 11.41 square miles, the dam plays a crucial role in regulating water flow and storage in the region. Despite being uncontrolled, the spillway type, the dam ensures the safety and integrity of the structure for its multiple designated purposes. As a valuable asset for water resource and climate enthusiasts, Big Timber #53 represents a harmonious blend of conservation efforts and practical applications in a rural setting.
Year Completed |
1954 |
Dam Length |
450 |
Dam Height |
20 |
River Or Stream |
EAST BLACKTAIL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
11.41 |
Nid Storage |
247 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
Big Timber #53