Gaz Métro (Énergir) had to relocate a gas pipeline buried in the Yamaska River in Saint-Hyacinthe, downstream from the Bouchard Bridge. The ministère des Transports had to rebuild the bridge urgently because of its ageing state and structural problems. Because of technical constraints, the new pipeline had to be placed in an open trench under the riverbed using a work enclosure made of cement blocks, geosynthetic liners and floating turbidity curtains. Ensuring environmental performance was a crucial challenge for this major project.
- Eastern Canada
- Gaz Métro