Spring Creek Lake (Cascade) Reservoir Report
Last Updated: December 5, 2025
Spring Creek Lake in Cascade, Montana, is a privately owned reservoir primarily used for irrigation purposes.
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Summary
The dam, completed in 1930, stands at a height of 25 feet and has a storage capacity of 187 acre-feet, with a normal storage level of 111 acre-feet. Located along Spring Creek, the lake serves as a vital water resource for the surrounding area, with low hazard potential and a condition assessment that is currently not rated.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), the state-regulated Spring Creek Lake is situated in the Walla Walla District and falls under Congressional District 00 in Montana, represented by Greg Gianforte. While the dam has not been modified in recent years, it undergoes regular state inspections and enforcement to ensure its safety and functionality. Despite its modest size, the lake plays a crucial role in sustaining agricultural activities in the region and contributes to the overall water management infrastructure.
With a picturesque location near Great Falls and a history dating back to the early 20th century, Spring Creek Lake offers a glimpse into the importance of water resources in sustaining local communities. While its surface area and spillway details are not specified in the data, the lake's value lies in its ability to support irrigation needs and provide a reliable source of water in an arid region. As climate change continues to impact water availability, the management and maintenance of reservoirs like Spring Creek Lake are essential for ensuring sustainable water usage and resilience in the face of changing environmental conditions.
Year Completed |
1930 |
Dam Length |
720 |
Dam Height |
25 |
River Or Stream |
SPRING CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
187 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Spring Creek Lake (Cascade)