REQUEST FOR PROPOSAL (RFP), deadline 07/04/2021, to engage a Construction Manager at Risk (CMAR) for the Yellow Line Tunnel & Bridge Rehabilitation project between Metro’s Pentagon and L’Enfant Plaza Stations. Work will include rehabilitating a steel-lined structure to provide redundant structural support of the existing tunnel, thereby restoring the structural integrity of the tunnel and extending its useful life for a minimum of fifty (50) additional years. The project contains heavy systems work, including the temporary relocation and permanent replacement of existing communication, traction power, Automatic Train Control (ATC), life safety, fiber optics, and other systems. Structure work will include replacing existing bearings, expansion joints, drainage systems, and dry standpipe systems. Estimated Project Value USD20M to USD50M. Estimated Period of operation from 28 to 42 months. Contact WMATA, attn Ms Norie A. Calvert, email nacalvert@wmata.com. For further on the tender, please click here. Ref.n. 810. 12/21.