Caltrans Spreads the Word, Not the Virus July 13, 2020 A Caltrans billboard in San Joaquin County asks for drivers to help beat COVID-19 by washing hands. On Highway 99 near Stockton, a Caltrans electronic sign warns drivers to be careful and avoid spreading COVID-19. On Highway 5 near Elk Grove, a Caltrans electronic sign warns drivers to be careful and avoid spreading COVID-19. On Highway 80 near Sacramento, a Caltrans electronic sign warns drivers to be careful and avoid spreading COVID-19. On Highway 5 near Stockton, a Caltrans electronic sign warns drivers to be careful and avoid spreading COVID-19. Submitted by Anonymous, Sacramento County.