 Atlanta was easily pulled free by the Union ships and she reached Port Royal under her own power . Not badly damaged , she was repaired and bought by the Union Navy . The prize money of $ 350 @,@ 000 was shared between the crews of Weehawken , Nahant and the gunboat <unk> , the only ships within signaling distance . The ship retained her name and was commissioned again on 2 February 1864 , <unk> with a pair of 8 @-@ inch ( 203 mm ) , 150 @-@ pound Parrott rifles in the bow and stern and 6 @.@ 4 @-@ inch , 100 @-@ pound Parrott rifles amidships . The 150 @-@ pound Parrott rifle weighed 16 @,@ 500 pounds ( 7 @,@ 500 kg ) and was 17 <unk> long . The 100 @-@ pounder weighed 9 @,@ 800 pounds ( 4 @,@ 400 kg ) and was 20 <unk> long . It fired a 100 @-@ pound ( 45 kg ) shell a distance of 6 @,@ 900 yards ( 6 @,@ 300 m ) at an elevation of + 25 ° . All four of her Brooke rifles are currently located in Willard Park in the Washington Navy Yard . Atlanta was assigned to the North Atlantic <unk> Squadron and spent most of her time stationed up the James River where she could support operations against Richmond and defend against a sortie by the ironclads of the James River Squadron . On 21 May 1864 , she and the gunboat Dawn fired on and dispersed Confederate cavalry that was attacking Fort <unk> and she was deployed further upriver in February 1865 after the Battle of Trent 's Reach to better blockade the Confederate ironclads at Richmond . 
