The Department of Defense, through the Department of the Army, is preparing to solicit bids for the construction of the B-21 ADAL Operations and Aircraft Maintenance Unit facility at Ellsworth Air Force Base in South Dakota. This project falls under the NAICS code 236220, which pertains to Commercial and Institutional Building Construction, and aims to enhance operational capabilities at the base. The successful contractor will be responsible for the construction of miscellaneous buildings as outlined in the presolicitation notice, with further details available in the attached document. Interested parties should direct inquiries to Gloria Garside at gloria.garside@usace.army.mil or Amanda Eaton at amanda.e.eaton@usace.army.mil, as telephone calls will not be accepted.