USS Suncook – a single-turreted, twin-screw monitor – was built by the Globe Works, South Boston, and delivered to the government at the Boston Navy Yard on 8 July 1865. Suncook was a Casco-class, light-draft monitor intended for service in the shallow bays, rivers, and inlets of the Confederacy. These warships sacrificed armor plate for a shallow draft and were fitted with a ballast compartment designed to lower them in the water during battle.