Trenchless Technology

OCT 2018

Trenchless Technology is the premier communications vehicle for the trenchless industry. Through our multiple platforms, readers receive insights into the trenchless industry, as well as keep connected to the latest news, products and projects.

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Page 29 of 91

30 T R E N C H L E S S T EC H N O LO GY O C TO B E R 2018 Winner Proximity to a NCAA Division I university, being situated beneath the main thoroughfare to a major rec- reation area and a tight deadline to avoid the late fall dips in temperature common to the Northeast , are just a few of the challenges associated with rehabbing a 36-in. gas main in South Orange, New Jersey. These were some of the known chal - lenges facing Public Service Electric and Gas (PSE&G) and Progressive Pipe Management (PPM), the utility 's con- tractor partner. As is the case with any construction project, other obstacles came into play as work progressed. Overcoming all of these challenges, without a major disruption of service, and the sheer size of this cured-in- place lining (CIPL) project made the "36-in. CIPL Gas Main Rehabilitation Project " standout from the competi- tion and earned it the 2018 Trench- less Technology Project of the Year – Rehabilitation honors. Documented by PSE&G, PPM and Karl Weiss Technologies as a world- record relining of a critical high pres- sure gas distribution main using the Starline CIPL technology, the project took place in four segments beneath South Orange Avenue, a major coun- ty route between Newark and Mor- ristown, New Jersey, and right on the doorstep of Seton Hall University. The 36-in. high-pressure, cast-iron feeder main, installed in the 1950s, was a known problem for PSE&G at the time of the renewal in fall 2017. The main had 15 known joints with active leaks, elevating concerns regarding the safety of the line, and although some patches had been made, it was clear to PSE&G that a permanent žix was required. According to George Ragula, dis- tribution technology manager for PSE&G, with the joints every 18 ft and at a depth of 4 ft , repairing the joints via excavation was not a feasible al - ternative. Ragula estimates that each Project of the Year R E H A B I L I T A T I O N By Mike Kezdi 3 6 - i n . C I P L G a s M a i n R e h a b i l i t a t i o n P r o j e c t

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