County Boundaries

Caltrans emergency road closures data represents highway postmile segment lengths closed related to wildfire impacts and safety concerns. These road closures are identified and reported by departmental field staff, Traffic Management Centers (TMCs), and compiled by Caltrans Headquarters Communication Center in coordination and support of law enforcement and fire officials.   Caltrans statewide Highway Condition Reporting Requirements (HCRR) enable the timely notification and collection of road restriction information that includes: Caltrans district, California county, type of road restriction, geographic location, postmiles, detour if applicable, and temporal information on closure and estimated opening times.
This data is updated on schedule twice daily at 0900 and 1600 through the duration of California statewide wildfire support and coordination efforts.
Additional information on Caltrans postmile system and road closures can be found by visiting the Caltrans Postmile Service application and the Caltrans Quickmap web application. For current highway conditions please visit Caltrans Road Information.

For GIS related inquiries of this data, please contact Caltrans HQ Division of Maintenance GIS

Data and Resources

Field Value
dcat_issued 2020-09-23T15:37:03.000Z
dcat_modified 2020-09-23T15:41:00.000Z
dcat_publisher_name CA Governor's Office of Emergency Services
encoding utf8
guid https://gis-calema.opendata.arcgis.com/datasets/651849a9291444139fc40c1d5b367713_1
spatial {"type": "Polygon", "coordinates": [[[-124.4096, 32.5342], [-124.4096, 42.0095], [-114.1315, 42.0095], [-114.1315, 32.5342], [-124.4096, 32.5342]]]}
Groups
  • NSF
  • United States
Tags
  • Boundaries and Regions
  • CalTrans
  • California Department of Transportation
  • ESF1 Transportation
  • Emergency Road Closure
  • NSF
  • Transportation
  • United States
isopen False
license_id CC0-1.0
license_title CC0-1.0
metadata_created 2026-10-30T17:08:00.574631
metadata_modified 2026-10-30T17:08:00.574636
notes <div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'>Caltrans emergency road closures data represents highway postmile segment lengths closed related to wildfire impacts and safety concerns. These road closures are identified and reported by departmental field staff, Traffic Management Centers (TMCs), and compiled by Caltrans Headquarters Communication Center in coordination and support of law enforcement and fire officials.</div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'> </div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'>Caltrans statewide Highway Condition Reporting Requirements (HCRR) enable the timely notification and collection of road restriction information that includes: Caltrans district, California county, type of road restriction, geographic location, postmiles, detour if applicable, and temporal information on closure and estimated opening times.</div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'><br /></div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'>This data is updated on schedule twice daily at 0900 and 1600 through the duration of California statewide wildfire support and coordination efforts.</div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'><br /></div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'>Additional information on Caltrans postmile system and road closures can be found by visiting the <a href='https://postmile.dot.ca.gov/PMQT/PostmileQueryTool.html?' rel='nofollow ugc' target='_blank'>Caltrans Postmile Service application</a> and the <a href='http://quickmap.dot.ca.gov/' rel='nofollow ugc' target='_blank'>Caltrans Quickmap web application</a>. For current highway conditions please visit <a href='https://roads.dot.ca.gov/' rel='nofollow ugc' target='_blank'>Caltrans Road Information</a>.<br /></div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'><br /></div><div style='color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14.4px;'>For GIS related inquiries of this data, please contact Caltrans HQ <a href='mailto:HQ.Maintenance.GIS@dot.ca.gov' rel='nofollow ugc' target='_blank'>Division of Maintenance GIS</a></div>
num_resources 6
num_tags 8
title County Boundaries
url https://gis-calema.opendata.arcgis.com/datasets/651849a9291444139fc40c1d5b367713_1