The first USS Milwaukee, a double-turreted Milwaukee-class river monitor, the lead ship of her class, built for the Union Navy during the American Civil War. The ship supported Union forces during the as they attacked Confederate fortifications defending the city of Mobile, Alabama in early 1865. She struck a mine in March and sank without loss. Her wreck was raised in 1868 and broken up for scrap that was used in the construction of a bridge in St. Louis, Missouri.