I've fished off that bridge for herring all my life since I was a little kid barely able to hold a fishing rod. Its the same ole story.. many people swear to fish it on a flood tide, that tide will push the herring in.. logical sense.. .. and then there's who swear to fish it on an ebb tide?? who knows.. I've caught buckets and buckets full of herring some times on a flood and some times on an ebb.. I've all ways found when the herring are in, running, doesn't matter what the tide is doing, if the herring are there you will catch them.. if there not in there not in.. tide flooding or ebbing. You just have to get lucky and time it right! We try to figure it out when the herring will be there and use the tides to figure it out in our heads.. lol.. If your going to fish off he bridge try fishing it at in the middle of the night in the dark... no traffic on the bridge, no exhaust fumes and no road dust to breath in! its very peaceful fishing their at night ! and can be very productfull..! A good spot is right by the bridge light and fish near or under it.. you can see the herring flash in the water lilted up by the bridge light as they hit your jig! its fun.. When we were younger we used to get a few friends together, a few beers, and go jig for herring at night it was a blast...!