February 21, 2025
The San Diego County Water Authority is at the halfway point on a critical construction project to extend the life of the historic First Aqueduct and ensure continued delivery of safe and reliable water supplies for the region.
Work on the project, known as the Southern First Aqueduct Facilities Improvement Project, is expected to run through summer 2026 with renovations to 99 structures along two large diameter pipelines that run from north to south county.
“The First Aqueduct has served our region for over 70 years, and this investment is about making sure it continues to do so reliably,” said Nick Serrano, chair of the Water Authority Board of Directors. “This project is a great example of our water bills at work – ensuring that the infrastructure delivering safe and clean water to our homes and businesses remains strong for generations to come.”
The project represents one of the most extensive maintenance efforts in the agency’s history. The First Aqueduct serves 11 water agencies countywide. Improvements are focused on two parallel pipelines that were construction in the late 1940s and 50s.
