Snider No. 6 Reservoir Report
Nearby: Snider No. 1 Town Draw Rate & Huson
Last Updated: December 5, 2025
Snider No.
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Summary
6, located in Powder River, Montana, is a privately owned earth dam completed in 1952 for irrigation purposes on Snider Draw. The dam stands at a height of 25 feet and has a hydraulic height of 20 feet, with a length of 250 feet and a storage capacity of 44 acre-feet. Despite its low hazard potential, the dam is in poor condition as of the last inspection in September 2021, raising concerns about its structural integrity and safety.
The dam is regulated by the State of Wyoming and falls under the jurisdiction of the State Engineer's Office. It undergoes regular inspections and is subject to state permitting, inspection, and enforcement to ensure compliance with safety standards. While the risk assessment deems the dam's risk as moderate, the poor condition assessment suggests that maintenance and potential rehabilitation efforts may be necessary to mitigate any potential hazards and ensure the long-term stability of the structure.
Overall, Snider No. 6 serves a crucial role in supporting irrigation activities in the region but requires attention and investment to address its deteriorating condition. Water resource and climate enthusiasts may find interest in following the dam's maintenance and potential risk management measures to safeguard the surrounding community and natural resources.
Year Completed |
1952 |
Dam Length |
250 |
Dam Height |
25 |
River Or Stream |
SNIDER DRAW |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
20 |
Nid Storage |
44 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Powder River At Arvada
|
156cfs |
Piney Creek At Kearny
|
113cfs |
Wild Horse Creek Near Arvada
|
0cfs |
Clear Creek Near Arvada
|
256cfs |
Rock Creek Near Buffalo
|
70cfs |
Prairie Dog Creek Near Acme
|
19cfs |
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.
Snider No. 6