Thalle Construction Co. Inc., Hillsborough, North Carolina, was awarded a $212,998,962 modification (P00003) to contract W912P5-21-C-0015 to exercise all remaining options related to the construction of the Kentucky Lock Downstream Monoliths contract. Work will be performed in Grand Rivers, Kentucky, with an estimated completion date of May 17, 2027. Fiscal 2010 Infrastructure Investment and Jobs Act civil works construction funds in the amount of $212,998,962 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.