Barrett Dam, Gravity dam in San Diego County, US
Barrett Dam is a gravity dam in San Diego County that holds back water on Cottonwood Creek. The structure captures and stores water for the surrounding region in southern California.
San Diego constructed the dam between 1919 and 1923 after acquiring water infrastructure from Southern California Mountain Water Company in 1913. This project became a key step in securing the city's water supply during its growth.
The dam location holds connections to George Barrett, who settled in this area during the 1870s before any water management structures existed.
Access to the site is restricted and requires advance planning before your visit. Check conditions ahead of time since visiting rules and seasons affect when you can explore the area.
The dam features a stepped overflow spillway with gates that open during winter months to manage heavy rainfall. This system automatically protects downstream areas from flooding without requiring constant human monitoring.
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