An assembly site was set up in Nanoose Bay, north of Nanaimo, about 180 km by sea from the project site. A weather-resistant enclosure was set up around the Widos 26000 fusion machine. Sections of pipe were trucked to the site where experienced ISCO fusion technicians were able to complete two to three fusions per day for a total of more than 100 fused joints.
“We were expecting a maximum of two joints per day, but at a certain point, the fusion technicians were able to get three per day, so that really bumped up production and put us ahead of schedule,” explained Russell Rosenburg, an engineer on the project. “It’s been perfect. Communication between each party has been great. Talking to Jeff and talking with the freighting company that ISCO decided to go with, it’s all been great. Very positive.”
The pipe was then towed off of the fusion machine and into the bay where concrete ballast weights were installed by crane. “Everything has been relatively seamless,” Fogel said. “It’s been textbook.”
Once the pipeline was assembled, it was pressure tested to ensure hydraulic integrity. It was then towed from Nanoose Bay to the installation site over the course of two days. It was installed by “float and sink” methods in water up to 62 meters (203 feet) deep. It was approximately 1800 meters (5900 feet) long and included a 210 meter (690 foot) long, 36 port diffuser.
This project was an incredible demonstration of teamwork between multiple entities resulting in a record-breaking installation. The construction showcased what can be accomplished with ISCO and HDPE pipe.