Crews connected the pulling blocks to the dry side of the drill rig and, in concert with the lifting derrick barges, righted the rig from the capsized position. The derrick barges then were reconfigured to help in the pumping process to lift the deck of the drill rig above the water. Formed in 2005, T&T Bisso is a stand-alone response contractor servicing the maritime, shipping and offshore energy industries.
TVA Uses Ellicott Dredge for Cleanup
Three months after a massive coal ash spill, the Tennessee Valley Authority (TVA) has begun dredging the ashen byproduct of coalgenerated electricity from the Emory River using an Ellicott Series 370 Dragon dredge. Jacobs Engineering is the prime contractor for this first phase of the project.
The Ellicott 370 Dragon began sucking up ash from the river April 2. TVA estimates the clean up could cost more than $800m and take months if not years to complete. Some 5.4 million cubic yards of ash breached earthen walls holding back a 60 ft-high landfill-like pile of ash at the Kingston plant three days before Christmas. More than a dozen homes were damaged or destroyed as the ash residue spilled out over a 300-acre area, covering a cove and flowing into the river, filling a navigation channel up to 27 ft deep. Tim Hope, TVA's recovery project manager, said about 3 million cubic yards went into the Emory River. This first phase of dredging will recover a little more than half of that, he said. A layer of ash about 5 ft deep will be left on the bottom for dredging later.
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