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Final concrete shell placement sets project back on critical path
A diver enters the water to assist with the placement of the 10th and final concrete shell on the riverbed of the Tennessee River Feb. 2, 2020 below Kentucky Lock in Grand Rivers, Ky. It is the 10th concrete shell that is part of the permanent downstream lock wall and will double as part of a coffer dam for the Kentucky Lock Addition Project. (USACE photo by Mark Rankin)

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Photo by: Mark Rankin |  VIRIN: 200202-A-BO243-2205.JPG