Fall Creek CCS Phase I Multiple CSO Capture in an Urban Setting

Citizens Energy Group is implementing a Long Term Control Plan to address combined sewer overflows (CSOs) in Indianapolis, Indiana. Included are provisions for a series of CSO diversion structures, consolidation sewers, drop shafts, and a tunnel for storage and conveyance. There are multiple tunnel segments as well as multiple near surface projects planned over a span of 10 years. The design and construction of the Fall Creek Collection Consolidation Sewer Phase I project faced challenges of construction in an urban environment around numerous utilities including existing water, sanitary, gas, and overhead electric utilities. Coordinating with other municipal projects that were being planned, designed, and constructed concurrently was also an aspect of the project during design. Additionally, coordination with multiple stakeholders and community neighborhoods, and managing project risks and schedule assisted with completing a successfully managed and executed project.