Please submit more detail regarding the location of graffiti to Caltrans at http://www.dot.ca.gov/hq/maint/msrsubmit/
or you can call them at 925-926-6112.
We found some of the graffiti and reported it to Caltrans but we could not locate all of it. If you give them more details of where you can see if from, that will be helpful with their abatement efforts.
Thank you
Donna
City of Lafayette Public Works Services
925-934-3908