Messer Construction Co., Dayton, Ohio, was awarded an $8,412,000 firm-fixed-price contract for alteration of a tower building. Bids were solicited via the internet with one received. Work will be performed in Dayton, Ohio, with an estimated completion date of June 15, 2025. Fiscal 2023 research, development, test and evaluation, Army funds in the amount of $8,412,000 were obligated at the time of the award. U.S. Army Corps of Engineers, Louisville, Kentucky, is the contracting activity (W912QR-23-C-0023).