Port Mann Water Supply Tunnel

Port Mann Tunnel Diver

The Port Mann Water Supply Tunnel is a complex project, requiring commercial divers to descend inside the shaft, working in blackness, performing difficult work in challenging conditions. And, when they surface, they face a potentially deadly risk. In this video shot in the winter of 2013, we documented the critical steps needed to ensure the divers avoided decompression sickness,¬†a¬†potentially deadly¬†condition also known as ‘the bends’.