Table · dataset · 2026
Adopt-A-Highway (AAH) All Other Locations
Listed in California Open Data
The AAH_all_other_loc feature class marks Adopt-A-Highway sites at single-postmile 'other locations' for the entire State Highway Network, merged from all 12 Caltrans districts into one statewide layer.
Description
It is produced by the same AAH application-to-feature pipeline as the companion AAH_all_Highway segment layer, from each district's GIS join query exports (D##_qry_GIS_Join_EN1 and _WS1) with personally identifiable applicant contact fields removed.
A point is generated - via the Caltrans LRS measureToGeometry operation at the site postmile along the SHN centerline (SHN_lines) - for sites defined by a single postmile rather than a length of highway, and for location types that warrant a marker (Vista Point, Turnout, Park & Ride, Interchange). The map status class (Status_Pub, aliased 'Status') is derived from the authoritative source adoption status, with 'Vacant (NSR)' shown as 'Available Pending Site Review'.
Read the rest (1 more)
The published schema is a curated subset for public display: feature key (id_AHH_Join), district, county, route, begin/end postmile and postmile span (pm_span_mi), direction, city, begin/end postmile landmark descriptions, location type, maintenance region, and the derived public status (Status_Pub, aliased 'Status'). Source applicant, contact, and group fields are not included. The layer is establish-then-update (created on first run, then truncated and reloaded).
Links
Get the data
- Publisher page gis.data.ca.gov/datasets/da58659aef30466fac909a8b986a1c64_0 ↗
documentation · download · from data ca gov
- ArcGIS GeoService caltrans-gis.dot.ca.gov/arcgis/rest/services/CHhighway/AAH_all_other_loc/FeatureServer… ↗
download · from data ca gov
- CSV gis.data.ca.gov/api/download/v1/items/da58659aef30466fac909a8b986a1c64/csv?lay… ↗
download · from data ca gov
- Shapefile gis.data.ca.gov/api/download/v1/items/da58659aef30466fac909a8b986a1c64/shapefi… ↗
download · from data ca gov
- GeoJSON gis.data.ca.gov/api/download/v1/items/da58659aef30466fac909a8b986a1c64/geojson… ↗
download · from data ca gov
- KML gis.data.ca.gov/api/download/v1/items/da58659aef30466fac909a8b986a1c64/kml?lay… ↗
download · from data ca gov
- File Geodatabase gis.data.ca.gov/api/download/v1/items/da58659aef30466fac909a8b986a1c64/filegdb… ↗
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/adopt-a-highway-aah-all-other-locations ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=e79d5e9d-5083-41d9-b41a-3a0990e0f… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Transportation
- From keywords
- Engineering
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | e79d5e9d-5083-41d9-b41a-3a0990e0fff0 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:transportation | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |