Challenging installation of a PE100 outfall pipeline in the UK’s Severn Estuary

Kaymac Marine & Civil Engineering has successfully completed a challenging £8.4M project to install a new PE100 outfall pipeline in an ecologically sensitive area of the Severn Estuary in the UK.

The project involved the installation of a new 1.4km long by 560mm internal diameter PE100 outfall pipeline that was manufactured in Norway by Pipelife Norge and transported 2100 kilometers to Newport, Wales in 11 sections. After site preparation, which primarily comprised excavation of the pipe trench, the pipeline was then installed using over 260 pre-cast concrete ballast collars. These were designed to ensure stability of the pipeline against the hydrodynamic forces of the estuary and the natural buoyancy of the PE100 material.

The full article, which appears in the online edition of the New Civil Engineer magazine, can be found using the following link.