There must not have been any space left to vandalize under the bridge. It is amazing non of these vandals and tagger have been killed or injured from falling from under the bridge. The City of Oakland has created a public nuisance by not blocking access to the underside of the bridge and not placing no trespassing signs.

City of Oakland Public Works Department addressed this issue on 05/24/2016, service request #655146.

Thanks for fixing this issue!

Thank you for your eyes-on-Oakmore, Hugh! :-)