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123 datasets

2023 Crash Data on State Highway System

  • Published by: Caltrans
  • Last updated: Thursday, July 3, 2025
  • File types: CSV

The Crash Data On California State Highways Report is produced annually by the California Department of Transportation (Caltrans) to provide high leve...

2022 Crash Data on State Highway System

  • Published by: Caltrans
  • Last updated: Friday, November 15, 2024
  • File types: CSV

The Crash Data On California State Highways Report is produced annually by the California Department of Transportation (Caltrans) to provide high leve...

2021 Crash Data on State Highway System

  • Published by: Caltrans
  • Last updated: Tuesday, October 24, 2023
  • File types: CSV

The Crash Data On California State Highways Report is produced by the California Department of Transportation (Caltrans) to provide high level summari...

2023 Named Freeways, Highways, Structures and Other Appurtenances in California

  • Published by: Caltrans
  • Last updated: Friday, November 14, 2025
  • File types: CSV

Named Freeways, Highways, Structures and Other Appurtenances in California Publication Named Freeways, Highways, Structures and Other Appurtenances in...

2021 Named Freeways, Highways, Structures and Other Appurtenances in California

  • Published by: Caltrans
  • Last updated: Friday, December 13, 2024
  • File types: CSV

Named Freeways, Highways, Structures and Other Appurtenances in California Publication Named Freeways, Highways, Structures and Other Appurtenances i...

2022 Named Freeways, Highways, Structures and Other Appurtenances in California

  • Published by: Caltrans
  • Last updated: Friday, December 13, 2024
  • File types: CSV

Named Freeways, Highways, Structures and Other Appurtenances in California Publication Named Freeways, Highways, Structures and Other Appurtenances in...

California State Fleet

  • Published by: California Department of General Services
  • Last updated: Monday, June 9, 2025
  • File types: DOCX, CSV

This dataset contains information on all non-confidential assets within the California State Vehicle Fleet. The purpose of this data is to provide veh...

Automated Weather Observation System

  • Published by: Caltrans
  • Last updated: Thursday, April 2, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This layer was created from the California Aviation System Plan list of Automated Weather Observation Systems. The upgrades and distribution of Automa...

Express Lanes

  • Published by: Caltrans
  • Last updated: Thursday, April 2, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California HOV/Express Lane Business Plan is a framework for Caltrans and its partners to focus statewide activity during 2009-2011 that will lead...

Caltrans Districts

  • Published by: Caltrans
  • Last updated: Thursday, April 2, 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...