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38 datasets

Local Bridges

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The bridge inventory data was obtained from Caltrans Structure Maintenance and Investigations (SM&I) Database as of 03/12/2024. Bridge inspectors ...

Public Airport

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a point layer of Public Use Airports currently permitted by the State of California, Department of Transportation (Caltrans), Division of Tran...

Military Airport

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a point layer of Military Airports currently permitted by the State of California, Department of Transportation (Caltrans), Division of Transp...

Early Development Project List

Published by: Caltrans
Last updated: Friday, October 31, 2025
File types: CSV, EXCEL (XLSX)

The project list serves as a resource to the public, stakeholders, and local communities to provide information on ongoing transportation projects cur...

California Metropolitan Planning Organization (MPO)

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset contains the geographic boundaries of Metropolitan Planning Organizations (MPO) and is intended for metropolitan area multimodal transpor...

State Highway Network Lines

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

StateHighways are state highways based upon the Caltrans Linear Referencing System. Each record in this layer represents a highway segment where the c...

State Highway Network Postmiles Tenth

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Postmiles are valid postmile points at 0.1 (1/10th) mile intervals, based on the Caltrans Linear Referencing System. Exceptions that are included are ...

Hospital Heliports

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This Hospital Heliport point layer displays California hospital heliport locations with the links to the heliport info sheets that provide permitted a...

Caltrans Districts

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The District boundary definitions are primarily based on the California county boundaries. The Board of Equalization (BOE) County and City Boundary we...

Bottlenecks

Published by: Caltrans
Last updated: Thursday, February 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Bottleneck Mapping is a subproject of the Mobility Performance Report, which is one of the products of the Mobility Performance Reporting and Analysis...