Sample Flats Dam Reservoir Report
Nearby: Smart Mans Dam Dog Star
Last Updated: December 5, 2025
Sample Flats Dam, located in Chouteau, Montana, is a privately owned structure regulated by the Montana Department of Natural Resources and Conservation.
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Summary
The dam, classified as an Earth-type structure, stands at a height of 14 feet and has a hydraulic height of 10 feet. With a storage capacity of 400 acre-feet, the dam serves the primary purpose of water retention on the Dugout Coulee.
Despite being rated as a low hazard potential and not having a condition assessment, Sample Flats Dam is equipped with state-regulated inspection, enforcement, and permitting processes to ensure its safety and compliance. Owned by a private entity, the dam operates under the jurisdiction of the state of Montana and is positioned within Congressional District 00. While the dam's last inspection date and condition assessment are unknown, it remains a crucial water resource for the surrounding area.
Water resource and climate enthusiasts will find Sample Flats Dam intriguing due to its location in a vital watershed and its role in regulating water flow on the Dugout Coulee. With a storage capacity of 400 acre-feet and a normal storage level of 345 acre-feet, the dam provides essential water management services for the region. As a state-regulated structure with comprehensive enforcement and inspection protocols, Sample Flats Dam represents a key component of Montana's water infrastructure, contributing to flood control and irrigation efforts in the area.
Dam Height |
14 |
River Or Stream |
DUGOUT COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
400 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Chester Mt
|
249cfs |
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Loma Mt
|
335cfs |
Missouri River At Fort Benton Mt
|
4720cfs |
Lake Creek Near Power Mt
|
30cfs |
Teton River At Loma Mt
|
30cfs |
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.
Sample Flats Dam