Caltrans Districts

The District boundary definitions are primarily based on the county boundaries. 2010 Census TIGER/Line county data were used to create this district boundary layer. Following the Census data, for the coastal counties, new District data use three-mile offshore lines instead of the coastlines that the old Caltrans District data had been used.
Organization: State of California
Last updated: 2023-08-25T21:30:59.438475
Tags: boundaries, boundary, california-department-of-transportation, california-state-transportation-agency, caltrans, caopendata, clearinghouse, district, lines, tiger