Capital Improvement Project Numbers 650725.01 & 650696

This project is part of the City of Columbus’ Large Diameter Sewer Condtion Assessment Program.  This program assesses the structural integrity and hydraulic capacity of the most critical sewer infrastructure assets throughout the City, and provides for the remediation of any risks to customer service levels either through structural failure, or hydraulic failure through blockges or capacity constraints.

This project will rehabilitate 1,620 feet of 48-inch diameter concrete sanitary sewer utilizing the Cured-In-Place Pipe (CIPP) process.  The work also includes the cleaning of 540 feet of 42-inch concrete sanitary sewer, and 39 internal “shotcrete” spot repairs. These sewers were constructed circa 1965, and were identified to be in fair to poor condition.  The rehabilitation of these sewers will enhance structural integrity and extend service life.

The project has been submitted to the Ohio Environmental Protection Agency (OEPA) and is expected to receive a construction loan from the Ohio Water Pollution Control Loan Fund (WPCLF). The estimated construction cost is $2.5 million. 

Construction is expected to begin in March 2012 with completion expected in March 2013.

Project Benefits:
The main project benefit is the extension of the service life of Columbus’ highest priority sewers, and the removal of any capacity constraints from accumulated debris within these sewers.  The CIPP rehabilitation process will extend the life of the sewers by 50 years at a minimum, and the shotcrete spot repairs will prolong their life by at least 20 years.

Project Locations:
For the Olentangy Main Trunk sewer, the project locations generally follow S.R. 315 and the Olentangy Bike Trail from I-270 to Lane Avenue.  The CIPP process will be utilized on the sewer running underneath the I-270/S.R. 315 interchange.  The shotcrete spot repairs will occur sporadically throughout the project length where necessary.

For the Scioto Main and West Side Relief Sewers, these locations occur near the following intersections: Broad/Central, Central/State, Princeton/Town, Princeton/Sullivant, Mound at Cooper Stadium and Stimmel/Harmon.

Any questions or comments can be directed to:
Columbus Department of Public Utilities
• George J. Zonders at (614) 645-2926 or by email.

Ohio EPA will make available for public information a Limited Environmental Review for this project. Upon its release, the document may be viewed at the Ohio EPA’s site or in hard copy from Ohio EPA. If you would like to receive either an electronic copy via e-mail or a paper copy of the document via U.S. mail upon its release, please contact Dan Halterman of Ohio EPA at (614) 644-3658 or by email.