San Vicente Reservoir is a reservoir created by San Vicente Dam in San Diego County, California. It is located in the Cuyamaca Mountains, approximately 4.3 miles (6.9 km) north of Lakeside off California State Route 67.

The reservoir is formed by impounding the waters of San Vicente Creek, and the Colorado River via the First San Diego Aqueduct branch of the Colorado River Aqueduct from Lake Havasu. It is the largest reservoir in the city of San Diego, with a storage capacity of 249,358.0 acre-feet (0.3075786 km) (https://www.sandiego.gov/water/recreation/levels)

In 2009, construction began of a $568 million project to increase the size of San Vicente Reservoir twofold. San Diego County Water Authority officials are hoping to receive funding from Proposition 18 (the $11.1 billion bond to upgrade the Californian water supply), but will continue the upgrade without these funds if the Proposition is unsuccessful. [1]

The raising of the dam more than doubled the reservoir's past capacity of 145,200,000 cu yd (111,000,000 m) by increasing it 245,226,666 cu yd (187,489,239 m) to a total of 390,426,666 cu yd (298,502,604 m). The reservoir is a popular place for fishing, boating, waterskiing and wakeboarding.

• San Vicente Reservoir - City of San Diego
• List of reservoirs and dams in California
• List of lakes in California

• U.S. Geological Survey Geographic Names Information System: San Vicente Reservoir
• U.S. Geological Survey Geographic Names Information System: San Vicente Creek
• U.S. Geological Survey Geographic Names Information System: San Vicente Dam