Cross-check Course w/Charts

Current Position: Longitude 76.02.931W Latitude 35.39.020N (Raschal's Bay (west side of Pamlico Bay, south of Manteo)).
Miles travelled: 60
Weather: Sunny, beautiful weather, high 70, light winds from NE
Highlights: Weighed anchor about 7:30, and headed south via Manteo. Chart plotted a course west of Roanoke Island, and off we went. Got all the way to the old Roanoke bridge before we realized clearance was only 45 feet. Clearly marked on the chart, but we totally missed it. Backtracked and went around east side of the island - cost us about 1 hour travel time, but lesson learned - double check the course against the charts! Dropped anchor around 6PM, had dinner, planned tomorrow's course, and crashed. Touched the antenna at Coinjock bridge, but no other bridge challenges.