White River Tunnel Consolidation Collection Sewer

Location

Indianapolis, IN

Time Period

2013 - 2015

Project Description

Back in the day, combining stormwater and wastewater conveyance was commonplace, and the system designed for Indianapolis was no different. This system works well during normal periods of precipitation; however, increased amounts of precipitation result in combined sewer overflows (CSOs) that pollute our waterways. Citizens Energy Group (Citizens), under a consent decree with the Environmental Protection Agency and the Indiana Department of Environmental Management, implemented a long term control plan to address the issues caused by these overflows.

The core of Citizens’ plan is a new tunnel system that, when in place, will divert 3.5 billion gallons of sewage from local waterways. The White River collection consolidation sewer is part of that system and will connect three CSOs to the White River and Fall Creek tunnel systems. Phase one of the involved construction within two project areas along Waterway Boulevard and Indiana Avenue. Phase 2 involved construction of the WR05 connection to the future White River Deep Tunnel system. The fast-track schedule allowed work to be completed with minimal disruption to the developer’s existing construction schedule and also resulted in an overall cost savings of nearly $1,000,000.

PROJECT HIGHLIGHTS 

  • 24-hours-a-day construction inspection
  • Project initiation
  • Pre-construction conference
  • Field reports, records, and daily work
  • Contractor application for payment
  • Shop drawing/submittal review
  • Survey/layout quality assurance
  • Material testing
  • Change orders
  • Project close-out