TULLOCH RES NR KNIGHTS FERRY CA

RESERVOIR LEVELS
February 17, 2025


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Tulloch, located in Knights Ferry, California, is a concrete dam on the Stanislaus River with a primary purpose of hydroelectric power generation. Completed in 1958, it stands at a height of 205 feet and has a hydraulic height of 165 feet, providing a maximum storage capacity of 68,400 acre-feet and a normal storage capacity of 67,000 acre-feet. The dam, designed by George E. Goodall Co., spans 1,914 feet in length and has a controlled spillway with a width of 280 feet, ensuring efficient water management during peak discharges.

Maintained by the Federal Energy Regulatory Commission, Tulloch is a state-regulated and inspected structure with a high hazard potential due to its location in a densely populated area. The dam's associated purposes include flood risk reduction and recreation, in addition to hydroelectric power generation. Despite its age, Tulloch's risk assessment remains very high, emphasizing the need for ongoing monitoring and maintenance to ensure the safety and reliability of this critical water resource infrastructure in Calaveras County. As a significant feature on the Stanislaus River, Tulloch plays a vital role in water resource management and climate resilience efforts in the region.

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0.1%
Percent of Normal 100%
Minimum 471.71 ft
2023-12-12
Maximum 509.96 ft
2018-05-21
Average 498 ft
Dam_Height 205
Hydraulic_Height 165
Drainage_Area 980
Year_Completed 1958
Nid_Storage 68400
Structural_Height 200
River_Or_Stream Stanislaus River
Primary_Dam_Type Concrete
Foundations Rock
Surface_Area 1260
Hazard_Potential High
Outlet_Gates Tainter (radial) - 7
Dam_Length 1914
Nid_Height 205
Reservoir Levels
       

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