The regiment participated in the capture of City Point, Virginia, on May 4, 1864, and while in the city the regiment served fatigue duty, built Fort Converse on the Appomattox River, defended an attack against Fort Converse on May 20, and took part in Brigadier General Benjamin F. Butler's operations on the south side of the James River and against Petersburg and Richmond. The unit participated in action at Bailor's Farm on June 15, 1864, before taking part in the Richmond–Petersburg Campaign from June 16 to December 6, 1864. The regiment served in the trenches around Petersburg, seeing action there during the Battle of the Crater on July 30.