J Galt #7 Reservoir Report

Last Updated: December 7, 2025

J Galt #7 is a privately owned earth dam located in Forsyth, Montana, along the Nelson Coulee river system.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1955, this dam serves multiple purposes including fire protection, stock watering, and small fish pond management. With a height of 12 feet and a storage capacity of 70 acre-feet, J Galt #7 plays a crucial role in providing water resources for the surrounding area.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), J Galt #7 is classified as having a low hazard potential and is currently in "Not Rated" condition. While the dam has not been inspected recently, it is regulated, permitted, inspected, and enforced by the state, ensuring its safety and compliance with regulations. The dam's emergency action plan status, risk assessment, and management measures remain unreported, highlighting the need for further evaluation and documentation to ensure its long-term functionality and safety.

Located in Congressional District 00, Montana, J Galt #7 is situated in the Rosebud County and is under the jurisdiction of the state. Despite its relatively low hazard potential, the dam's role in water resource management and climate resilience cannot be understated. As water resource and climate enthusiasts continue to monitor and advocate for sustainable water management practices, J Galt #7 serves as a valuable infrastructure supporting the local community's water needs and environmental conservation efforts.

Year Completed

1955

Dam Length

275

Dam Height

12

River Or Stream

NELSON COULEE

Primary Dam Type

Earth

Hydraulic Height

12

Nid Storage

70

Hazard Potential

Low

Nid Height

12
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.