For the rest of the war the river monitors bombarded Paraguayan positions and artillery batteries in support of the army, notably at Angostura, Timbó and along the Tebicuary and Manduvirá Rivers. After the war the ships were divided between the newly formed Upper Uruguay and Mato Grosso Flotillas. "Alagoas" was transferred to Rio de Janeiro in the 1890s and participated in the Fleet Revolt of 1893–1894. The ships were disposed of during the last two decades of the 19th century, although "Rio Grande" was docked for reconstruction in 1899. The work was never completed and she was eventually scrapped in 1907.