TINEMAHA RESERVOIR

RESERVOIR LEVELS
December 21, 2024
3,882 ft 37.06, -118.22


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Tinemaha Reservoir, located in Aberdeen, California, along the Owens River, is a significant local government-owned hydroelectric facility completed in 1928. With a dam height of 32 feet and a storage capacity of 16,405 acre-feet, Tinemaha serves the primary purposes of hydroelectric power generation and water supply. Despite its age, the dam is regulated and inspected regularly by the California Department of Water Resources (DWR) to ensure its safety and compliance with state regulations.

The reservoir's poor condition assessment and high hazard potential underscore the need for ongoing maintenance and risk management measures. The last inspection conducted in July 2020 revealed areas of concern, prompting the authorities to review and update the emergency action plan (EAP) in December 2021. With its location in a high-risk area and the potential for inundation, the reservoir plays a critical role in water resource management and climate adaptation efforts in the region, necessitating continued monitoring and mitigation strategies to safeguard both the dam's integrity and surrounding communities.

As water resource and climate enthusiasts track the evolution of Tinemaha Reservoir, its historical significance and the challenges it faces underscore the importance of proactive maintenance and risk management in safeguarding critical infrastructure. With ongoing regulatory oversight and periodic inspections, stakeholders are working to address the dam's poor condition and high hazard potential, ensuring that Tinemaha continues to serve its vital functions in the face of changing environmental conditions and evolving water resource needs in California.

Storage 24hr Change 3.24%
Percent of Normal 69%
Minimum 1,117 acre-ft
2023-11-12
Maximum 9,294 acre-ft
2023-07-26
Average 4,399 acre-ft
Dam_Height 32
Hydraulic_Height 22.5
Drainage_Area 1915
Year_Completed 1928
Nid_Storage 16405
Surface_Area 2098
Hazard_Potential High
River_Or_Stream Owens River
Dam_Length 5800
Primary_Dam_Type Earth
Nid_Height 32
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