Downstream from majestic Mount Shasta is the Shasta Dam and the reservoir now known as Lake Shasta. According to historical records, dam construction started in 1937, and was such a high priority that when some of the men working on the project went to war, they were replaced by men and women who completed the project in 1945. Since its completion, Shasta Dam has been enormously successful in providing electrical power, flood control, and water storage. Shasta Lake serves as a recreation area and destination spot for sportsmen, nature lovers and families. The 21-mile-long reservoir stores and distributes approximately 20% of the state’s developed water.