Does anybody know where I can download the Interstate highway system (as a shapefile) for Southern California (the area around San Diego in particular)?
[GIS] download Southern California Interstate Highway System in a Shapefile
datashapefiletransportationunited-states
Best Answer
Go to https://www.census.gov/cgi-bin/geo/shapefiles2012/main and select Roads from the layer. Then you can select either all primary and secondary roads for the state, or you can get all the roads on a county by county basis.