Mgdevlin #2 Reservoir Report
Nearby: Mgdevlon Dam Mcmullin Bros Detention
Last Updated: December 6, 2025
Mgdevlin #2, located in Prairie, Montana, is a privately owned earth dam completed in 1954 by the USDA NRCS.
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Summary
This dam serves multiple purposes, including fire protection, stock watering, and creating a small fish pond. With a height of 18 feet and a storage capacity of 64 acre-feet, Mgdevlin #2 is regulated by the state of Montana and inspected regularly by the DNRC to ensure its safety and functionality.
The dam is situated on TR-CHERRY CREEK and is part of the Omaha District in Congressional District 00, Montana. Despite having a low hazard potential, Mgdevlin #2 is considered to have a moderate risk level. The spillway, with a width of 50 feet, is uncontrolled, and the dam has a maximum discharge of 500 cubic feet per second. While the condition assessment is currently not rated, the dam is managed and operated by the Natural Resources Conservation Service to mitigate any potential risks associated with its operation.
Water resource and climate enthusiasts may find Mgdevlin #2 intriguing due to its historical significance and multifunctional use. As an essential structure for fire protection and irrigation in the region, this dam plays a crucial role in water management and conservation efforts. With its location in a rural area of Montana, Mgdevlin #2 serves as a testament to the collaborative efforts between private owners, federal agencies, and state regulators in maintaining water infrastructure for the community's benefit.
Year Completed |
1954 |
Dam Length |
150 |
Dam Height |
18 |
River Or Stream |
TR-CHERRY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Drainage Area |
1.28 |
Nid Storage |
64 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
Mgdevlin #2