Adding protection like dolphins is more likely. I’ve read that they are planned for the Chesapeake Bay Bridge to prevent ships hitting the bridge.
Cars are an easy ride over the bridge compared to motorcycles. I rode over for a short vacation at Ocean City, MD on my bike. There are metal grades extending the length of the center section. They run down the middle of the lanes and you don’t have to ride on them if you don’t want to, and I didn’t. The back end of the bike wiggles on metal grates and it’s disconcerting, especially at that height. I told myself to just keep going and don’t look down once I paid the toll. I made it without incident. It was a little better from a fear factor point of view on the way home, but still scary.