USS Arkansas BB-33 is sitting on the bottom at Bikini Atoll. It was sunk during the Baker atomic test there. The reason she was used as a target was by the end of WW2 she was pretty much warn out. The Arkansas was the oldest battleship that saw action in WW2 - in fact she was around during WW1 and was present at the surrender of the German Grand Fleet at the end of WW1.
The Virginia Class Guided Missile Cruiser USS Aarkansas CGN-41 is sitting in the Puget Sound Naval Yard currently being broken up. Last I heard the reactor and upper superstructure had been removed and all that was left was the hull.
