Pontoosuc returned to New York on 30 August 1864 and took up escort duties. By mid-December, she had resumed blockade duties, off Wilmington. On 24 and 25 December she participated in the assault on Fort Fisher, returning to shell the Fort again in the successful mid-January 1865 attack.
Pontoosuc returned to New York on August 30th, 1864, and resumed her duties as an escort ship. By mid-December, she resumed her blockade duties off Wilmington. On December 24th and 25th, she participated in the assault on Fort Fisher, returning to shell the fort again during the successful attack in mid-January 1865.