Caltrans
Website: https://dot.ca.gov/
Caltrans manages more than 50,000 miles of California's highway and freeway lanes, provides inter-city rail services, permits more than 400 public-use airports and special-use hospital heliports, and works with local agencies. Caltrans carries out its mission of providing a safe, sustainable, integrated and efficient transportation system to enhance California’s economy and livability, with six primary programs: Aeronautics, Highway Transportation, Mass Transportation, Transportation Planning, Administration and the Equipment Service Center.
Search Caltrans datasets
50 datasets
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: Sunday, December 21, 2025
- 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...
Regional Transportation Planning Agencies
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
The RTPA polygon feature class provides California Regional Transportation Planning Agencies (RTPA) legislative boundaries, primarily for regional pla...
State Highway Network Lines
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- 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: Sunday, December 21, 2025
- 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 ...
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...
Bottlenecks
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- 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...
Commercial Vehicle Enforcement Facilities
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
A Commercial Vehicle Enforcement Facility (CVEF) commonly called a Weigh Station (WS) is a checkpoint typically located directly off the State highway...
Maintenance Facilites
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
Freight and Passenger maintenance facilities in California....
State Highway Bridges
- Published by: Caltrans
- Last updated: Sunday, December 21, 2025
- 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 ...