Transportation

The District boundary definitions are primarily based on the county boundaries. 2010 Census TIGER/Line county data were used to create this district b...

SHN Postmiles Tenth

Published by: Caltrans
Last updated: Wednesday, November 20, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Postmiles are valid postmile points at 0.1 (1/10th) mile intervals, based on the Caltrans Linear Referencing System, updated to match TSN as it appear...

Caltrans Emergency Road Closures

Published by: Caltrans
Last updated: Wednesday, July 6, 2022
File types:

Caltrans Emergency Road Closures due to incidents impacts. This layer is updated from information provided by Caltrans Headquarters Communication Cent...

National Highway System

Published by: Caltrans
Last updated: Wednesday, November 20, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Under MAP-21, the Enhanced NHS is composed of rural and urban roads nationwide serving major population centers, international border crossings, inter...

Bottlenecks

Published by: Caltrans
Last updated: Wednesday, November 20, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Bottleneck Mapping is a subproject of the Mobility Performance Report, which is one of the products of the Mobility Performance Reporting and Analysis...

State Highway Bridges

Published by: Caltrans
Last updated: Wednesday, November 20, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

The bridge inventory data was obtained from Caltrans Structure Maintenance and Investigations (SM&I) Database as of 05/08/2020. SM&I performs ...

Military Airport

Published by: Caltrans
Last updated: Wednesday, November 20, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

This is a point layer of Military Airports currently permitted by the State of California, Department of Transportation (Caltrans), Division of Aerona...