The Department of Defense, specifically the Department of the Army through the W071 Endist Omaha office, is soliciting proposals for the construction of B-21 60 Row Environmental Protection Shelters in the northern region. This procurement involves significant changes in specifications and drawings, as outlined in the amendment, and aims to provide essential airfield structures that support military operations. The proposal due date has been extended to April 3, 2025, at 2:00 PM CT, and interested bidders should direct inquiries to Scott Dwyer at Scott.Dwyer@usace.army.mil or Jessica Jackson at jessica.r.jackson@usace.army.mil for further information.