BEAR

RESERVOIR LEVELS USBR BAR
April 19, 2025


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Bear Dam, located in Mariposa, California, along Bear Creek, is a vital structure managed by the US Army Corps of Engineers for flood risk reduction and hydroelectric purposes. Completed in 1954, this earth dam stands at a height of 85 feet and has a storage capacity of up to 12,700 acre-feet. With a spillway width of 100 feet, the dam plays a crucial role in managing water levels and preventing potential flooding in the region.

Despite being classified as having a high hazard potential, Bear Dam is regularly monitored and maintained by the USACE to mitigate risks associated with severe weather events and ensure structural integrity. The emergency action plan for the dam is continually updated, and the agency collaborates with local emergency managers to develop evacuation plans and raise public awareness. Through ongoing risk management measures, USACE works to address all types of flood risk associated with the dam and maintain its operational efficiency for the safety and well-being of the surrounding communities.

Storage 24hr Change 0%
Percent of Normal 86%
Minimum 1 acre-ft
2003-12-29
Maximum 13,843 acre-ft
2008-10-20
Average 2 acre-ft
Dam_Height 85
Hydraulic_Height 80
Drainage_Area 72
Year_Completed 1954
Nid_Storage 7700
Structural_Height 92
Primary_Dam_Type Earth
Surface_Area 265
Hazard_Potential High
River_Or_Stream BEAR CREEK
Dam_Length 1830
Nid_Height 92
       
Seasonal Comparison
Storage Levels
Pool Elevation Levels
Top Conserv Storage Levels
Inflow Levels

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