The authorized military project coincides with the authorized civil works project, Fernandina Harbor, to the entrance of the Amelia River. The authorized project provides for a channel 49 feet deep plus 2 feet of advanced maintenance dredging and 500 feet wide from the ocean to the entrance of Amelia River where the channel turns north and transitions to 45 feet deep plus 2 feet of advanced maintenance dredging and 500 feet wide. The channel then continues north to Drum Island where it transitions to 44 feet deep and 500 feet wide and turns into Naval Submarine Base Kings Bay.