California Department of Transportation

Geographic Information Systems (GIS)

Geographic Information Systems are used within Transportation Planning and District 5 in general to manage data and perform mapping tasks.


GIS Data

The Caltrans Office of Data Services and Technology maintains a listing of available GIS data

Our two most commonly requested GIS datasets (State Highways and Postmiles) can be downloaded from this page. Format choices are Shapefiles or File Geodatabase:

To request any other data, contact the District 5 GIS Coordinator (see Contact below).


GIS Links

SLO Data Finder – Data clearinghouse for San Luis Obispo County.
Caltrans Office of Data Services and Technology
San Luis Obispo GIS Users Group



Dario Moreno, GIS Coordinator
(805) 549-3319

Last updated: May 3, 2017