L Galt #19 Reservoir Report
Nearby: Bethel College #3 Big Timber #7
Last Updated: December 6, 2025
L Galt #19 is a privately owned dam located in Rosebud County, Montana, near the city of Forsyth.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1944, this earth dam stands at a height of 20 feet and serves multiple purposes including fire protection, stock watering, and small fish pond management. With a normal storage capacity of 48 acre-feet and a maximum storage of 65 acre-feet, L Galt #19 plays a crucial role in water resource management in the area.
Situated on the TR-West Blacktail Creek, this low-hazard dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and undergoes regular state inspections and enforcement measures to ensure its safety and compliance with regulations. While the dam has not been rated for its condition assessment, it continues to fulfill its intended purposes effectively, contributing to the overall water infrastructure in the region. With its strategic location and functional design, L Galt #19 remains a key component in the local water resource network.
For water resource and climate enthusiasts, L Galt #19 offers a fascinating glimpse into the history and importance of dams in the Montana landscape. As a vital structure for fire protection, livestock watering, and ecological management, this dam exemplifies the intersection of human needs and environmental stewardship. With its low hazard potential and state-regulated status, L Galt #19 represents a successful example of water infrastructure that continues to serve the community effectively after nearly 80 years since its completion.
Year Completed |
1944 |
Dam Length |
200 |
Dam Height |
20 |
River Or Stream |
TR-WEST BLACKTAIL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
65 |
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.
L Galt #19