I am not familiar with that inlet, but in general most inlets have a fairly quick tide running in and out and tend to shoal over every few years. The bottom of these inlets are pretty clean because of this. As the inlet shoals, it needs to be dredged in order that the inlet be navigable.
I have also found in general that the reason for good fishing in inlets is due to the tide overpowering the bait fish and making it a good hunting ground for predators. I wouldn't think that a dredging an inlet should change those conditions all that much.
I have also found in general that the reason for good fishing in inlets is due to the tide overpowering the bait fish and making it a good hunting ground for predators. I wouldn't think that a dredging an inlet should change those conditions all that much.