Indianapolis, Indiana is building underground storage capacity in the form of a 28-mile 18-foot diameter deep rock tunnel system which will connect the two existing wastewater treatment plants, and provide collection of discharge water from the various CSO sites located along the White River, Eagle Creek, Fall Creek, and Pleasant Run. Citizens Energy Group is managing the efforts to construct the first phases of the work, which includes a 200-foot deep Deep Rock Tunnel Connector between the Belmont Wastewater Treatment Plant and the Southport Wastewater Treatment Plant. Additional tunnels will branch under the existing watercourses located in Indianapolis. The planned cost for the project will total $1.4 billion dollars.