In early 1865, the CSS Arctic was scuttled, but not destroyed, to prevent capture by Union forces after the fall of Fort Fisher.
After the war, the wreck was raised and found to be structurally sound and again outfitted as a lightship and continued to serve for many years using its original name
Comments on Civil War Talk.
One person not sure where it was moored. Perhaps near Fort Caswell.
Someone else had a picture of the USS Arctic from the Illustrated London News from the late 1850s with the caption "The American Steam ship 'Arctic' employed in sounding for the Atlantic Telegraph."