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4 datasets

Public Road Functional Classification

Published by: Caltrans
Last updated: Friday, September 25, 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...

State Highway Network Odometer

Published by: Caltrans
Last updated: Friday, September 25, 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...

AAH all Highway

Published by: Caltrans
Last updated: Friday, September 25, 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 ...

State Highway Network Postmiles

Published by: Caltrans
Last updated: Friday, September 25, 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...