The berm construction is now finished, marking the completion of another major phase of the dam’s seepage remediation project. Mary Ellen Miller, public relations program manager for the Boone Dam project, said this phase, which was expected to be finished sometime this month, was completed just days ahead of schedule.
“We expected to get it done by June but we got it by the end of May,” Miller said.
The berm construction phase involved placing 223,000 tons of rock from local quarries on both the upstream and downstream berms with the aim of stabilizing the earthen embankment in preparation for the next major phase, construction of the underground cutoff wall.
The construction of this wall is now under procurement, and TVA officials expect to announce the construction contractor for the cutoff wall by this fall.
“We’re going to be doing some site grading and preparations for the wall contractor that will be coming in the fall,” Miller said. “We’ll also be doing modifications to the concrete dam and adding additional instrumentation over the summer.”
The Tennessee Wildlife Resources Agency also recently hydroseeded the upstream berm to place vegetation on the ground and control erosion. Boaters will now see the newly greened, grassy area from the water, according to Miller, who added that the communications tower will also soon be moved ahead of construction on the underground cutoff wall as workers prepare a new construction laydown area.
“We’re preparing the area for the contractors who are coming in,” she said. “The public will notice construction activity at the corner of Minga Road and Boone Dam Road.”
Miller said the Boone Dam repair project, which is projected to cost up to $450 million, is still expected to be completed in 2022.
For more updates on the Boone Dam project, visit www.tva.gov/Newsroom/Boone-Dam-Project.