With two recent groundings at this AICW Problem Stretch, we are upgrading these reports to a Nav Alert. Until dredging is done, slow speed and mid to high tide is recommended for this intersection. Thank you Michael and Ken for sharing these incidents and SSECN is glad neither of you sustained damage in the grounding, other than your pride!
Coming south 16Aug16 at +1′ above low. Draw 4′. At idle speed ran hard aground in mid-channel just past green buoy. C-Map charting [updated Sep15] shows channel angles sharply toward red at the green buoy — should have followed its suggestion. My mistake was to “stay mid-channel.” The bottom raised VERY quickly, almost a wall. After backing off, saw above 10′ in area on line between reds.
We were also headed south through this stretch on August 14. We draw 3 feet. Just past the green we also ran hard aground. We were in the channel toward the red side as recommended, but not quite on the line between the two reds. There was no warning on the depth meter before it was too late. We were able to get off eventually using bow and stern thrusters and some wakes from passing small boats. We didn’t incur damage except to our equanimity.
Captain Ken Hirsch
Keeping in mind that rapid changes in shoals at inlet intersections is not unusual, RodC offers this January 2016 ACOE survey:
Latest ACOE survey for the area – clearly shows the traditional channel is ~100% shoaled to between 2 and 4ft MLLW. What channel there is (or was as of 1-16-2016) is just to the outside on the RED side of the marks.