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.
Organization: State of California
Last updated: 2023-08-12T12:05:04.399282
Tags: caltrans, clearinghouse, highway, postmiles, shn, tenth, transportation