Unfortunately, the clearance at that bridge can be difficult to anticipate in advance... Although the water
level fluctuations through there are typically wind-driven, in my experience they don't always seem to follow any predictable pattern...
What is your boat's draft
? You should be able to carry at least 6.5' - or a bit more by playing the tide at Oregon
Inlet - through the Pamlico Sound route
to the E of Roanoke Island... IMO, that can often be the preferred way to go anyway, combining a stop in Ocracoke
with the possibility of some nice sailing on the Sound, can make for more pleasant trip than motoring up that part of the Ditch...