SNOFLO
 



MICHELENA #3

RESERVOIR LEVELS
Rock, Soil Dam South Park Draw
April 12, 2025


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Michelena #3 is a private irrigation dam located in Johnson, Wyoming, along the South Park Draw river. Built in 2006, this earth dam stands at a height of 32 feet and has a storage capacity of 49 acre-feet. The dam serves multiple purposes including irrigation, fire protection, stock, and small fish pond management, with a normal storage capacity of 31 acre-feet.

With a low hazard potential and fair condition assessment, Michelena #3 is regularly inspected by state regulatory agencies for compliance and safety. The dam features an uncontrolled spillway with a width of 50 feet, and an outlet gate for water management. In the event of an emergency, the dam is equipped with an Emergency Action Plan (EAP) to ensure the safety of downstream communities.

Climate and water resource enthusiasts will appreciate the strategic design and functionality of Michelena #3, which plays a crucial role in supporting agricultural activities in the region. The moderate risk assessment score indicates the need for ongoing monitoring and risk management measures to keep the dam in optimal condition for its various purposes. With its location in a congressional district represented by Liz Cheney, Michelena #3 stands as a testament to the importance of responsible water resource management in Wyoming.

Year_Completed 2006
Dam_Height 32
River_Or_Stream SOUTH PARK DRAW
Dam_Length 354
Primary_Dam_Type Earth
Surface_Area 3.52
Hydraulic_Height 27
Drainage_Area 0.1
Nid_Storage 49
Structural_Height 39
Outlet_Gates Valve - 1
Hazard_Potential Low
Foundations Rock, Soil
Nid_Height 39
       

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