“Completion of the barrier wall will provide safety to the dam and protection to the communities downstream. It will also enhance our ability to generate power and reduce low water environmental impacts,” said Lt. Col. James A. DeLapp, Nashville District commander.
Achieving this level is dependent on completing the barrier wall and obtaining safety approval by early spring, Getty added.
“Sufficient rainfall after approval of the barrier wall will also be part of the equation of raising the lake for the 2013 summer recreation season,” he said.
The lake is expected to be operated in its normal range in the fall of 2013 which means it could be lowered to elevation 685 feet as part of the normal water management cycle during the fall and to facilitate final riprap placement on the upstream face of the earthen portion of the dam.
Although the barrier wall will be complete, the project will still have work to remove the work platform extension and its associated rock fill on the dam’s embankment.
A final concrete placement and public completion ceremony is being planned for Spring 2013, the Corps said.