Meanwhile, up on the surface, the tremendous sucking power of the whirlpool was causing violent destruction. It swallowed another nearby drilling platform whole, as well as a barge loading dock, 70 acres of soil from Jefferson Island, trucks, trees, structures, and a parking lot. The sucking force was so strong that it reversed the flow of a 12-mile-long canal which led out to the Gulf of Mexico, and dragged 11 barges from that canal into the swirling vortex, where they disappeared into the flooded mines below. It also overtook a manned tug on the canal, which struggled against the current for as long as possible before the crew had to leap off onto the canal bank and watch as the lake consumed their boat.
After three hours, the lake was drained of its 3.5 billion gallons of water. The water from the canal, now flowing in from the Gulf of Mexico, formed a 150-foot waterfall into the crater where the lake had been, filling it with salty ocean water. As the canal refilled the crater over the next two days, nine of the sunken barges popped back to the surface like corks, though the drilling rigs and tug were left entombed in the ruined salt mine.
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