Grounding of Marine Bollards Grounding of Marine Bollards Powerkem (Electrical) (OP) 1 Jun 15 23:14 thread311-305703: Electrical Grounding of a mooring bollard in Florida. I have a similar query: Are bollards, bullrails, and other metal parts on concrete pontoon type piers require bond to ground? RE: Grounding of Marine Bollards Crannog (Marine/Ocean) 9 Jun 15 09:06 Hi Powerkem, What are you concerned about grounding for, corrosion or electrical safety? In either case for a tied up vessel a mooring line is a pretty bad conductor. You can get issues with stray current from shore charging but I've not seen bollards influencing this. I wouldn't see any benefit for the bollard itself.