This is a Sources Sought notice for planning purposes only, and no contract will be awarded from it. The U.S. Army Corps of Engineers is conducting preliminary market research for a firm-fixed-price contract to design and build a 7,800-square-foot Radar Operations and Maintenance Facility at Yuma Proving Ground (YPG). The estimated construction budget is between $5,000,000 and $10,000,000, with a total anticipated performance period of 52 weeks. The agency is seeking capability statements from contractors, particularly under NAICS code 236220, to identify qualified sources capable of this new vertical construction project, which requires specific past experience on military installations.