Summary
With a height of 25 feet and a length of 150 feet, the dam serves multiple purposes including fire protection, stock, and small fish pond. It has a storage capacity of 58 acre-feet and a drainage area of 0.56 square miles, with a maximum discharge of 375 cubic feet per second.
Situated on TR-Little Dry Creek in Cohagen, Montana, Smith Ranch 6 is regulated by the DNRC and subject to state permitting, inspection, and enforcement. The dam has a low hazard potential and a moderate risk assessment rating of 3. Despite not being rated for condition assessment, the dam is considered to meet guidelines for emergency action plans.
Owned by a private entity, Smith Ranch 6 plays a crucial role in water resource management and climate resilience in the region. With its strategic location and multiple functions, the dam serves as a key infrastructure for maintaining water supply, protecting against wildfires, and supporting local agriculture and wildlife.
Year Completed |
1964 |
Dam Length |
150 |
Dam Height |
25 |
River Or Stream |
TR-LITTLE DRY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
0.56 |
Nid Storage |
58 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Yellowstone River At Forsyth Mt
|
5430cfs |
Yellowstone River At Miles City Mt
|
8100cfs |
Redwater River At Circle Mt
|
1cfs |
Tongue River At Miles City Mt
|
263cfs |
Musselshell River At Mosby Mt
|
240cfs |
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.
Smith Ranch 6