July 2021

Introduction The following paper highlights 2 different pipeline reroute projects. There are many similarities, but the main difference is in the approach of each project, i.e., a traditional multi contractor involvement vs. a more turnkey approach. The common thread is the technical complexity and multi-facetted nature of these two projects. Our first case study centers on a pipeline reroute through a river. The 18” gas transmission pipeline was constructed in 1980’s and the section under discussion crossed a river of approximately 330 feet wide. Over the years the riverbanks eroded and exposed the gas pipeline to such an extent that