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SHN Postmiles Tenth

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 appeared on 1 October 2021. Exceptions that are included are the beginning and ends of routes (and other situations) that don't necessarily begin or end on the even 0.1 mile interval.

Data files

Data title and descriptionAccess dataFile detailsLast updated

GeoJSON

DownloadGEOJSON
08/11/23

CSV

Download
CSV
08/11/23

KML

DownloadKML
08/11/23

Shapefile

DownloadZIP
08/11/23

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

ArcGIS Hub Dataset

HTML
08/11/23

ArcGIS GeoService

ARCGIS GEOSERVICES REST API
08/11/23

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation