On November 4, 2018, at 0840, the hopper barge PTC 598 sank about 6 miles off Cape St. George, Florida, with a cargo of scrap metal. The barge was being towed by the towing vessel Kaitlin Olivia along with another barge, PTC 625, en route from Tampa, Florida, to Mobile, Alabama. No pollution or injuries to the four crewmembers aboard the tugboat were reported. Damage was estimated to be $750,000.