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18 datasets

Adopt-A-Highway (AAH) All Highways

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The AAH_all_Highway feature class displays Adopt-A-Highway sites as highway segments for the entire California State Highway Network, merged from all ...

National Highway System

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The National Highway System consists of a network of roads important to the economy, defense and mobility. On October 1, 2012 the existing National Hi...

State Highway Bridges

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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 ...

State Highway Network Postmiles

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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...

State Highway System Intersection

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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 Odometer

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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...

California All Public Roads Network

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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...

Public Road Functional Classification

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 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...

Commercial Vehicle Enforcement Facilities

  • Published by: Caltrans
  • Last updated: Wednesday, September 30, 2026
  • 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...

Climate Vulnerability and Risk Assessment Coastal Flood Risk

  • Published by: Caltrans
  • Last updated: Thursday, October 1, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The 2026 Caltrans Climate Change Vulnerability and Risk Assessment is a statewide planning-level analysis of climate change impacts on Caltrans assets...