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It's difficult to fully understand the "how" and "why" questions if you don't know the "where." Maps and geospatial data help us interpret and interact with our world, giving us deeper insight into our past and a clearer view of our present, while helping us plan for California's future. This page highlights maps and spatial data from Building California partner agencies and departments.

California infrastructure projects

Learn how your community benefits from infrastructure projects statewide, including efforts funded by Senate Bill 1 and the Federal Infrastructure Investment and Jobs Act funding. Search more than 29,000 California infrastructure project records by keyword or project ID, project type, location, funding program, status, or year.


About the data

Some projects on the map receive funding from multiple sources and may share a common project ID number.

Maps and data available to the public are for informational purposes only. Information on the Building California website is accurate but is subject to change regularly without notice. While Caltrans makes every effort to provide accurate and helpful information, we do not guarantee it to be authoritative, complete, factual, or timely, nor assume any liability for its use.

The Department of Transportation is not liable for any costs or damages, including direct, indirect, special, incidental, or consequential damages, arising from access to, use of, or inability to access or use the Site or any of the materials or services described herein.

Caltrans strives to ensure that all our documents are accessible. When documents cannot be made accessible, we are committed to providing alternative access to the content. If you need additional assistance, contact us at (916) 654-2852 or visit Request ADA Compliant Documents.