Water Authority Begins Three-year Project on Oldest Aqueduct

A three-year construction project on San Diego’s oldest aqueduct is underway, with the San Diego County Water Authority leading the $66 million effort to upgrade the infrastructure. Work on the project, known as the Southern First Aqueduct Facilities Improvement Project, is slated to run through summer 2026 and is intended to retrofit 99 structures connected to two water pipelines.