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70 datasets

Regional Transportation Planning Agencies

Published by: Caltrans
Last updated: Friday, September 4, 2026
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 Bridges

Published by: Caltrans
Last updated: Friday, September 4, 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 ...

Regional Transportation Grants

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The Division of Transportation Planning from Caltrans HQ has collected the attributes on every project and every applicant they approved for transport...

State Highway Network Odometer

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Odometer dataset is used to support accurate distance-based referencing along the State Highway Network. It helps users compare postmile values wi...

State Highway Network Lines

Published by: Caltrans
Last updated: Friday, September 4, 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 System Intersection

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

As part of the Transportation System Network Replacement Project (TSNR), Highway Inventory module data migration, it was determined Caltrans would be ...

State Highway Network Postmiles

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The LRSN_Postmile feature class is an Esri Roads and Highways Network (or more generically a Linear Referencing Method) that represents the California...

California Transit Stops

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Use GTFS schedule trips, stop_times, shapes, and stops to estimate whether corridor segments have scheduled headways of 20 minutes or less....

California All Public Roads Network

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Caltrans All Roads Linear Referencing Services (LRS) dataset provides the base geometry for federally required Highway Performance Monitoring Syst...

California Road Sharing (CaRS) Initiative Partnerships

Published by: Caltrans
Last updated: Friday, September 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Purpose of this dataset is to show CA counties that are involved in the CaRS program. This dataset shows contact information and data partnership info...