Make Waves in 2026: Dominate the California FFA Water Management and Dams Challenge!

Shasta Lake is recognized as the largest reservoir in California by storage capacity, with a maximum capacity of about 4.5 million acre-feet of water. This immense storage capacity plays a crucial role in California's water management system, serving both irrigation and municipal water supply needs, as well as recreational activities. Located in Northern California, Shasta Lake is a key component of the Central Valley Project and is essential for flood control, hydroelectric power generation, and supporting environmental needs in the region.

In contrast, the other reservoirs listed, while significant in their own right—such as Lake Oroville and Folsom Lake—do not have the same level of storage capacity. Hetch Hetchy Reservoir, although important for supplying water to San Francisco, is much smaller in comparison to Shasta Lake. Understanding the scale and function of Shasta Lake helps illustrate the importance of large reservoirs in California's diverse water management strategy.