San Joaquin County Public Works is dedicated to providing high-quality, fiscally responsible infrastructure and services that preserve and enhance the community’s quality of life while supporting the County’s goals. The department plans, designs, constructs, operates, and maintains essential public infrastructure — including roads, transportation systems, bridges, water and wastewater systems — to serve residents, businesses, and regional partners. Public Works strives to deliver responsive and dependable service across the unincorporated areas of San Joaquin County.