STEINAKER RESERVOIR

RESERVOIR LEVELS
February 6, 2025
5,513 ft 40.51, -109.53


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Steinaker is a federal water resource located in Vernal, Utah, managed by the Bureau of Reclamation for irrigation purposes. Completed in 1961, this earth dam stands at a structural height of 162 feet, with a hydraulic height of 145 feet, providing a maximum storage capacity of 40,358 acre-feet. The reservoir covers an area of 850 acres and is fed by Ashley Creek offstream, with a drainage area of 19 square miles.

Despite its high hazard potential, Steinaker has undergone modifications in 1994 to enhance its foundation, seismic, and structural integrity. The dam is equipped with an uncontrolled spillway and can discharge up to 550 cubic feet per second. Its risk assessment categorizes it as moderate, with emergency action plans in place. Regular inspections are conducted, with the last assessment in September 2020, ensuring the safety and reliability of this vital water resource for the surrounding community and agricultural activities.

Storage 24hr Change 0.24%
Percent of Normal 99%
Minimum 42 acre-ft
2018-08-26
Maximum 36,643 acre-ft
2005-06-07
Average 19,768 acre-ft
Nid_Height 162
Hydraulic_Height 145
Drainage_Area 19
Years_Modified 1994 - Foundation, 1994 - Seismic, 1994 - Structural
Year_Completed 1961
Structural_Height 162
Primary_Dam_Type Earth
Surface_Area 850
Hazard_Potential High
Nid_Storage 40358
River_Or_Stream ASHLEY CREEK OFFSTREAM
Dam_Length 1997
Reservoir Levels
       

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