"Michigan" spent her career in the Atlantic Fleet. She frequently cruised the east coast of the United States and the Caribbean Sea, and in April 1914 took part in the United States occupation of Veracruz during the Mexican Civil War. After the United States entered World War I in April 1917, "Michigan" was employed as a convoy escort and training ship for the rapidly expanding wartime navy. In January 1918, her forward cage mast collapsed in heavy seas, killing six men. In 1919, she ferried soldiers back from Europe. The ship conducted training cruises in 1920 and 1921, but her career was cut short by the Washington Naval Treaty signed in February 1922, which mandated the disposal of "Michigan" and "South Carolina". "Michigan" was decommissioned in February 1923 and broken up for scrap the following year.