The City of Toronto released RFP 9117-14-7191 for Value Engineering Services and oversight of a Technical Advisory Committee for the City's Wet Weather Flow System to Control CSO Discharges to the Don River and Central Waterfront project currently in preliminary design. The wet weather flow system consists of 3 large diameter interconnected tunnels and several vertical storage shafts that will collect and store CSO and convey these flows to a new (future) high rate wet weather flow treatment facility. One of the tunnels will also serve as a bypass (and thus redundant) to the entire existing Coxwell Sanitary Trunk Sewer, the City's most critical trunk sanitary sewer.