Webwelcome to the caltrans district 3 active transportation plan! This story map provides an interactive way to view existing conditions and needs for people walking and biking in. Web59 rows · district/county map. Use the map or the table below to determine the abbreviation for a particular county, or which caltrans district a county is in. Web4 days ago · delays expected along state route 49 for safety barrier project. Crews excavating and performing drainage work. Webthere are 12 caltrans districts in california. Caltrans also has regions as higher level…