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GRANLEES

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March 23, 2025


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Granlees is a historic gravity dam located in Rancho Murieta, California, along the picturesque Cosumnes River. Built in 1921, this dam serves multiple purposes including flood risk reduction, irrigation, and water supply, making it a vital resource in the region. With a height of 17 feet and a storage capacity of 75 acre-feet, Granlees plays a critical role in managing water resources in Sacramento County.

Managed by a public utility, Granlees is regulated by the California Department of Water Resources (DWR) and undergoes regular inspections to ensure its safety and functionality. Despite its low hazard potential, the dam is deemed to be in satisfactory condition, with the last assessment conducted in September 2017. As a key infrastructure for flood risk reduction in the area, Granlees provides essential protection for local communities and supports agricultural and recreational activities along the Cosumnes River.

With its rich history and ongoing commitment to water management, Granlees stands as a testament to the importance of sustainable infrastructure in mitigating the impacts of climate change. As climate enthusiasts, we recognize the significance of dams like Granlees in safeguarding our water resources and enhancing resilience in the face of environmental challenges. As we continue to address the evolving needs of our water systems, Granlees remains a symbol of innovation and stewardship in ensuring a sustainable future for generations to come.

Year_Completed 1921
Dam_Height 17
River_Or_Stream Cosumnes River
Dam_Length 364
Primary_Dam_Type Gravity
Surface_Area 30
Hydraulic_Height 12
Drainage_Area 535
Nid_Storage 75
Hazard_Potential Low
Nid_Height 17
       

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