Towering over San Vicente Creek stands San Vicente Dam a testament to human ingenuity. It wasn’t always this imposing structure.
San Vicente Dam began its life in 1941. The City of San Diego needed a solution for water storage flood control and recreation. The original dam a concrete gravity marvel was completed in 1943. It created the San Vicente Reservoir. This reservoir though initially fed by runoff primarily relied on the First San Diego Aqueduct. This aqueduct brought water from the Colorado River a significant undertaking.
But San Diego’s population grew. The original dam’s capacity wasn’t enough. So in 2009 a massive project began. The dam was raised by 117 feet an incredible feat of engineering. This was the largest dam raise in the United States. It’s also the largest roller-compacted concrete dam raise worldwide. This innovative construction method saved time and money. The new dam is 337 feet high more than doubling the reservoir’s size.
Imagine the scale of this project. Adding 117 feet to an existing dam is like stacking a twelve-story building on top. The completed project increased the reservoir’s capacity from 90000 acre-feet to over 249000 acre-feet. That’s enough water for over 450000 homes for a whole year. The work finished in early 2014. Though the reservoir’s replacement pipelines weren’t completed until 2017.
San Vicente Dam wasn’t just a response to growing needs. It was a forward-thinking investment in San Diego’s future. The original designers cleverly anticipated a future need for increased capacity. They built the dam with the possibility of raising its height. This foresight saved millions of dollars and decades of delay. This dam is more than just concrete and water it’s a story of planning resilience and the ongoing quest for a secure water supply. It’s a symbol of San Diego’s innovative spirit. A structure that continues to protect and serve the community. The San Vicente Dam a crucial piece of San Diego’s infrastructure stands ready for generations to come.