In 1919, all three ships were decommissioned for the final time. "Indiana" was sunk in shallow water as an explosives test target a year later and sold for scrap in 1924. "Massachusetts" was scuttled off the coast of Pensacola in 1920 and used as an artillery target. The wreck was never scrapped and is now a Florida Underwater Archaeological Preserve. "Oregon" was initially preserved as a museum, but was sold for scrap during World War II. The scrapping was later halted and the stripped hulk was used as an ammunition barge during the battle of Guam. The hulk was finally sold for scrap in 1956.