The Department of Defense, specifically the Department of the Army, is soliciting bids for the construction of the B-21 East Alert Apron project at Ellsworth Air Force Base (EAFB). This design-bid-build construction project involves the installation of four pre-engineered metal Environmental Protection Shelters (EPS), each approximately 20,000 square feet, designed to accommodate B-2A "Spirit" aircraft and facilitate general aircraft maintenance, along with associated airfield and ground support equipment paving. The project is critical for enhancing operational capabilities and must adhere to stringent DoD Unified Facilities Criteria, including sustainable construction practices and antiterrorism requirements. Interested contractors can reach out to Gloria Garside at gloria.garside@usace.army.mil or Amanda Eaton at amanda.e.eaton@usace.army.mil for further details, with the project details and amendments available for review as of January 28, 2025.