No amount of explaining can give you the important details you need. I was curious, and checked Navionics and Aqua Maps charts - I suggest you get Aqua Maps and register, than download the US Army Corp of Engineers (USACE) overlay to get the clearest picture. there’s a lot of shoaling
Navionics notes-
Bascule Bridge Tender: 410-643-5963 Be alert that when you pass the bridge, the red/green markers switch sides. Otherwise you may quickly find yourself aground. Be aware of the current in the Narrows. Down current boats should be allowed right of way. Fixed Bridge Horizontal clearance 65 feet. Overhead Power Cable Auth Clearance 85 feet. The last span on the eastern side of the old highway bridge is shoal and not passable.