Kammala wannan magana: "Pittsburgh" ya ci gaba da aiki a cikin jerin ayyukan da suka yi amfani da iko na ƙananan Mississippi daga Kungiyar. Jirgin ruwanta, wanda a baya yake karkashin ikon Sojoji, ya zo karkashin umarnin sojan ruwa a ranar 1 ga Oktoba, 1862. Lieutenant Commander William R. Hoel USN ya dauki umurnin Pittsburgh a wannan lokacin. Abubuwan da suka fi muhimmanci a cikin aikinsa sune ayyukan da aka yi a kan Plum Point Bend, Fort Pillow da Memphis a watan Afrilu, Mayu da Yuni 1862; Steele's Bayou Expedition na Maris 1863; da kuma wucewa na batura na Vicksburg Afrilu 16, 1863. Ta jagoranci harin a kan batir a
Grand Gulf a ranar 29 ga Afrilu kuma ya lalace sosai a lokacin aikin sa'o'i biyar da rabi. Ɗaya daga cikin ma'aikatan jirgin ruwa na "Pittsburgh", Boatswain's Mate John Woon, an ba shi lambar yabo don rawar da ya taka a yakin. Ayyukan a Grand Gulf ya tabbatar da ikon Union na wani muhimmin yanki na kogin, yana ba da damar Grant ya haye kogin kuma ya kai hari ga Vicksburg daga baya. Ƙarfin kogin Confederate mai ƙarfi ya mika wuya a ranar 4 ga Yuli, yana ba da damar Shugaba Abraham Lincoln a ƙarshe ya ba da rahoto, "Uban Ruwan Ruwa yana gudana ba tare da haɗuwa da teku ba".