Fixed bridge avon side shark river

[hookset]

I was cruising shark river last week when we I put boat in water, of course it was low tide and i needed to cut across the back channel! As I approached it looked very shallow so I eased in with caution. About 100 yards in started to feel the hum grab and saw the black dirt from bottom coming to top! Trimmed motor up and revered on out luckily! Since it was low tide I knew I could make it under the fixed bridge on Avon side and went around that way.

Question is what is the clearance of that bridge at low tide and high tide??