When Lt. Cushing returned from his bold raid which destroyed the dreaded Southern ram on the night of 27–28 October, Otsego, in a group of Union ships under Comdr.

Macomb ascended the Roanoke River and attacked Plymouth, North Carolina forcing it to surrender after a bitter fight, 1 November.

The Federal forces took 37 prisoners, 22 cannon, vast stores, 200 stands of arms, and the hulk of sunken but still important Albemarle.

On 9 December she struck two torpedoes (mines) in quick succession and sank in that river near Jamesville, North Carolina.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.