21 October 2020
2020 Trenchless Technology Project of The Year Runner Up
Congratulations to the 2020 Trenchless Technology Project of the Year Rehabilitation Runner Up team for a successful "World Record 42-in. Cast Iron Gas Main CIPL Rehabilitation"
A world record was established for the cured-in-place lining (CIPL) of a 573 lf, 42-in., high-pressure cast-iron (CI) gas main leaking under Garden State Parkway at Central Avenue Bridge in East Orange New Jersey. This world-record 42-in. CIPL consolidates past successes, experience and knowledge gained from lining successively larger diameter projects over 28 years.
This project was chosen as an outstanding rehabilitation project by Trenchless Technology - as well as grouting firsts - for many reasons:
- Complex, deep inaccessible pipe 30 ft. below grade under freeway in U-tube layout
- Infiltration due to extreme pipe depth, leaking pipe and high-water table nearly stopped entire project
- First-ever gas industry use of injected curtain grouting through pipe wall into soil to block I&I was project linchpin, creating dry pipe interior allowing project to continue
- Significant first ever technical innovations used to overcome challenges on this project are now permanent additions to the CIPL toolbox including curtain grouting to stop inflow
We are proud to be a part of such an excellent project group that completed a dynamic, but successful project, as well as set benchmarks for industry firsts along the way.
To read the entire article, 2020 Project of the Year: Rehabilitation Runner Up "World Record 42-in. Cast Iron Gas Main CIPL Rehabilitation"