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
52 datasets
Automated Weather Observation System
- Published by: Caltrans
- Last updated: Sunday, March 15, 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...
Airport Boundaries
- Published by: Caltrans
- Last updated: Sunday, March 15, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
California Department of Transportation (Caltrans), Division of Transportation Planning, Aeronautics Program provided airport layout drawings with est...
Military Airport
- Published by: Caltrans
- Last updated: Sunday, March 15, 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...
High Occupancy Vehicle
- Published by: Caltrans
- Last updated: Sunday, March 15, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
High-Occupancy Vehicle (HOV) lane, also known as the carpool or diamond lane, is a traffic management strategy to promote and encourage ridesharing; t...
Express Lanes
- Published by: Caltrans
- Last updated: Sunday, March 15, 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...
Public Road Functional Classification
- Published by: Caltrans
- Last updated: Sunday, March 15, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
This Functional Classification dataset was exported from Caltrans Linear Reference System (LRS) on July 3rd, 2024. The LRS serves as the framework upo...
Major Traffic Generators
- Published by: Caltrans
- Last updated: Sunday, March 15, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
The locations of major generators were identified from listed data holdings and located using ESRI base map imagery at a scale of 1:10,000....
Local Bridges
- Published by: Caltrans
- Last updated: Sunday, March 15, 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 ...
Rail Lines BNSF, UPRR
- Published by: Caltrans
- Last updated: Sunday, March 15, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
The objective is to delineate potential crude by rail routes across California, focusing on a subset of the Caltrans "California Rail Network" dataset...
Hospital Heliports
- Published by: Caltrans
- Last updated: Sunday, March 15, 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...