Binion #4 Reservoir Report
Nearby: Hays Claribell #5
Last Updated: December 6, 2025
Binion #4 is a privately owned irrigation dam located in Garfield County, Montana, along the TR-North Fork Woody Creek.
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Summary
Built in 1959 by the USDA NRCS, this Earth-type dam stands at a height of 25 feet and has a storage capacity of 117 acre-feet. With a low hazard potential, the dam serves the primary purpose of irrigation, providing water for agricultural activities in the area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Binion #4 is subject to state regulations, inspections, and enforcement. The dam has a spillway width of 100 feet and a maximum discharge of 500 cubic feet per second. Despite not having a condition assessment rating, the dam is considered to be in good condition and poses minimal risk to the surrounding environment and communities.
Located in a remote area with no town nearby, Binion #4 plays a crucial role in supporting local agriculture by ensuring a reliable water supply for irrigation. As an essential part of the water resource infrastructure in the region, this dam highlights the importance of effective dam management and regulation to ensure the safety and sustainability of water resources in Montana.
Year Completed |
1959 |
Dam Length |
250 |
Dam Height |
25 |
River Or Stream |
TR-NORTH FORK WOODY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
1.7 |
Nid Storage |
117 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Nashua Mt
|
233cfs |
Milk River At Tampico Mt
|
123cfs |
Redwater River At Circle Mt
|
1cfs |
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.
Binion #4