The state DOT says Hatteras Inlet remains impassible in some areas as ferries prepare to switch to a busier summer schedule.
A series of storms clogged the channel between Hatteras and Ocracoke Islands this winter, forcing crews to clear a longer detour. A dredge has been clearing the original route, but officials say a boat bottomed out during a trial run last week.
"It's hard to say what's causing the changes there," says Jed Dixon, deputy director of the NC Ferry Division.