Iron Mountain No. 1 Reservoir Report
Nearby: Canon No. 3 Two Bar No. 1
Last Updated: December 5, 2025
Iron Mountain No.
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Summary
1 is an earth dam located in Albany, Wyoming, specifically in the city of Torrington. Completed in 1957, this dam serves primarily for irrigation purposes, with additional functions including fire protection, stock, and small fish pond management. With a height of 32 feet and a hydraulic height of 26 feet, it has a storage capacity of 51 acre-feet and a normal storage level of 28 acre-feet.
Situated on the West Fork Iron Mountain Creek, Iron Mountain No. 1 is regulated by the State of Wyoming through the State Engineer's Office. The dam has a spillway width of 40 feet and is equipped with a single valve outlet gate. Despite its low hazard potential and fair condition assessment, it undergoes inspections every 5 years, with the latest assessment conducted in June 2021. With a moderate risk rating of 3, the dam's risk management measures and emergency action plan status remain unspecified.
Owned and operated privately, Iron Mountain No. 1 stands as a testament to Wyoming's commitment to water resource management and climate resilience. As a vital infrastructure for agricultural activities in the region, this dam exemplifies the balance between human needs and environmental stewardship in a changing climate landscape. Its strategic location and design contribute to the sustainable utilization of water resources for the benefit of the local community, highlighting the importance of effective dam management practices in ensuring water security and ecosystem preservation.
Year Completed |
1957 |
Dam Length |
390 |
Dam Height |
32 |
River Or Stream |
W FORK IRON MOUNTAIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
26 |
Nid Storage |
51 |
Structural Height |
32 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sybille Creek Ab Mule Creek
|
143cfs |
Sybille Creek Ab Canal No. 3
|
93cfs |
Laramie River Near Bosler
|
1950cfs |
Laramie River At Laramie
|
48cfs |
Crow Creek At 19th Street
|
3cfs |
Little Laramie River Near Filmore
|
671cfs |
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.
Iron Mountain No. 1