RESERVOIR LEVELS
February 11, 2025


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Crane Valley, also known as Bass Lake, is a privately owned dam located in North Fork, California. Managed by the Federal Energy Regulatory Commission, this hydroelectric facility serves multiple purposes including electricity generation and recreation. The dam, with a height of 145 feet and a hydraulic height of 140.9 feet, was completed in 1910 and has a maximum storage capacity of 45,410 acre-feet.

With a high hazard potential and very high risk assessment rating, Crane Valley is closely monitored by state and federal agencies. Despite its age, the dam has remained structurally sound and is regularly inspected to ensure its safety. The spillway, with a controlled design and a width of 173 feet, helps manage excess water and prevent potential flooding downstream. While the dam's condition assessment is currently not available, emergency preparedness plans are in place, indicating a proactive approach to risk management.

Boasting a surface area of 1,165 acres and a drainage area of 39.7 square miles, Crane Valley plays a crucial role in water resource management in the region. Its strategic location on the North Fork Willow Creek enhances the water supply for agricultural, municipal, and industrial purposes. As a significant piece of infrastructure in Madera County, California, Crane Valley serves as a testament to the importance of sustainable water management practices in the face of changing climate conditions.

Storage 24hr Change -0.16%
Percent of Normal 147%
Minimum 21,707 acre-ft
2020-12-28
Maximum 44,123 acre-ft
2020-06-25
Average 27,244 acre-ft
Dam_Height 145
Hydraulic_Height 140.9
Drainage_Area 39.7
Year_Completed 1910
Nid_Storage 45410
Structural_Height 145
River_Or_Stream North Fork Willow Creek
Foundations Unlisted/Unknown
Surface_Area 1165
Hazard_Potential High
Outlet_Gates Tainter (radial) - 2
Dam_Length 1880
Nid_Height 145
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