Chicago Lake Reservoir Report
Nearby: Swamp Cooler Triple L And Er Fritz
Last Updated: December 21, 2025
Chicago Lake, located in Galata, Montana, is a privately owned reservoir with a primary purpose of fire protection, stock, and small fish pond.
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Summary
Built in 1968 by the USDA NRCS, this earth dam stands at a height of 15 feet and has a storage capacity of 242 acre-feet. The dam's low hazard potential and condition assessment of "Not Rated" reflect its well-maintained state.
Managed by the DNRC, Chicago Lake is regulated and permitted by the state of Montana, with regular inspections and enforcement to ensure its safety and compliance. The reservoir serves as a crucial water resource for the surrounding area, with a normal storage capacity of 83 acre-feet and a maximum discharge of 220 cubic feet per second. Despite its modest size, Chicago Lake plays a vital role in providing water for irrigation, livestock, and fire protection in the region.
Enthusiasts of water resources and climate will appreciate the importance of Chicago Lake in sustaining local agriculture and wildlife. Its strategic location, efficient design, and reliable water supply make it a valuable asset for the community. As a well-maintained reservoir with minimal risk potential, Chicago Lake exemplifies responsible water management and serves as a model for sustainable water resource development in the region.
Year Completed |
1968 |
Dam Length |
120 |
Dam Height |
15 |
River Or Stream |
DIFFUSED SURFACE WATER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
242 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Chicago Lake