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SHOSHONE FALLS DAM 3

RESERVOIR LEVELS
March 28, 2025


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Shoshone Falls Dam 3, located in Idaho along the Snake River, is a private-owned structure that serves primarily for hydroelectric purposes. Constructed in 1907, this buttress dam stands at a height of 15 feet and has a storage capacity of 1500 acre-feet. With a spillway width of 275 feet, the dam can handle a maximum discharge of 12,000 cubic feet per second.

Managed by the Federal Energy Regulatory Commission, Shoshone Falls Dam 3 is regulated, inspected, and enforced by the Idaho Department of Water Resources. Despite being classified as having a low hazard potential, the dam's condition assessment is currently not available. The emergency action plan was last revised in April 2021, indicating that measures are in place to ensure the safety and security of the surrounding area in case of any unforeseen events.

With its moderate risk assessment rating, Shoshone Falls Dam 3 remains a vital structure for both hydroelectric power generation and recreational activities. As water resource and climate enthusiasts, it is crucial to monitor and assess the condition of such dams to ensure their continued functionality and safety for the community and the environment.

Year_Completed 1907
Dam_Height 15
River_Or_Stream Snake River
Dam_Length 275
Primary_Dam_Type Buttress
Surface_Area 86
Hydraulic_Height 15
Drainage_Area 19500
Nid_Storage 1500
Structural_Height 15
Hazard_Potential Low
Nid_Height 15
       

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