The Department of Defense, through the U.S. Army Corps of Engineers (USACE), intends to award a sole-source contract for the capacity increase of the existing contract W912DR22D0007 with Grunley Construction Co, Inc. This procurement aims to facilitate a range of construction and renovation projects at the Raven Rock Mountain Complex (RRMC) and the Washington Headquarters Service, including design-build and design-bid-build tasks in secure environments, with specific requirements for hazardous material abatement and compliance with stringent security protocols. The work will take place in Maryland and Pennsylvania, often in challenging terrains, and all personnel must be U.S. citizens with appropriate security clearances. Interested parties may submit capability statements to Laura A. Wade or Erica A. Eaton by the specified deadline for consideration, although this notice does not constitute a request for competitive proposals.