RESERVOIR LEVELS
February 10, 2025


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Goodwin, located in Knights Ferry, California, is a public utility dam on the Stanislaus River that serves multiple purposes, including flood risk reduction, irrigation, and water supply. Built in 1912, this multi-arch dam stands at a height of 101 feet and has a storage capacity of 500 acre-feet. With a drainage area of 996.5 square miles, Goodwin plays a crucial role in managing water resources in Calaveras County.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Goodwin is subject to regular state inspections, enforcement, and permitting to ensure its structural integrity and operational safety. Despite being classified with a high hazard potential, the dam's condition was assessed as satisfactory in 2017. Emergency action plans are in place, with the last revision conducted in September 2020, to address any potential risks and ensure swift responses in case of emergencies.

With a historical significance dating back over a century, Goodwin continues to be a vital infrastructure for the local community in managing water resources and mitigating flood risks along the Stanislaus River. As water resource and climate enthusiasts, understanding the operational and safety measures surrounding dams like Goodwin is essential for promoting sustainable water management practices and ensuring the resilience of our water infrastructure in the face of changing climate conditions.

Storage 24hr Change None%
Percent of Normal None%
Minimum 507 acre-ft
2023-10-19
Maximum 604 acre-ft
2024-04-29
Average acre-ft
Dam_Height 101
Hydraulic_Height 81.1
Drainage_Area 996.5
Year_Completed 1912
Nid_Storage 500
Surface_Area 70
Hazard_Potential High
River_Or_Stream Stanislaus Rv
Dam_Length 460
Primary_Dam_Type Multi-Arch
Nid_Height 101
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