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Protecting over 33,000 freshwater mussels prior to reconstruction work on the bridge

At a Glance

  • +33K

    Mussels

Location
Senneville, Quebec
Offices
Client
  • Minist¨¨re des Transports et
  • de la Mobilit¨¦ Durable du Qu¨¦bec

?le-aux-Tourte Bridge Reconstruction - Mussel Relocation

Reconstruction of the ?le-aux-Tourtes bridge between Vaudreuil-Dorion and Montreal jeopardized an entire population of freshwater mussels located in the lac des Deux-Montagne sector. Before starting the reconstruction work, authorities carried out a vast operation to relocate 33,735 mussels. Many of these mussels belong to three at-risk species in a precarious situation¡ªthe strong-toothed elliptio, the fragile leptodea, and the pink Heelsplitter. The Minist¨¨re des Transports et de la Mobilit¨¦ Durable du Qu¨¦bec (Ministry of Transport and Sustainable Mobility of Quebec) engaged us to help move these invertebrates.

We supervised the relocation operation and manually moved the mussels upstream of the worksite. This would prevent them from being damaged or disturbed by the temporary stone jetties used in bridge construction. Our environmental professionals were on site with our trained free divers, in collaboration with sub-contracted commercial divers. The mussels were moved further north of the lake, in accordance with the conditions issued by the minist¨¨re de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs?(Ministry of the Environment, the Fight against Climate Change, Wildlife and Parks). All the mussels were hand-collected, either by diving or snorkeling, before being relocated.

Our team will be monitoring the relocated freshwater mussels until 2026 to watch over and secure their survival.

At a Glance

  • +33K

    Mussels

Location
Senneville, Quebec
Offices
Client
  • Minist¨¨re des Transports et
  • de la Mobilit¨¦ Durable du Qu¨¦bec

Meet Our Team

C¨¦cile P¨¦r¨¨s, Team Lead, Inventory & Permitting

I believe that every project provides an opportunity to do better for the environment.
°ä¨¦³¦¾±±ô±ð&²Ô²ú²õ±è;±Ê¨¦°ù¨¨²õ Team Lead, Inventory & Permitting Read More

Isabelle Picard, Senior Biologist

A project¡¯s success comes from productive collaboration, which takes a combination of thoroughness and open-mindedness to achieve.

°ä¨¦³¦¾±±ô±ð&²Ô²ú²õ±è;±Ê¨¦°ù¨¨²õ

Team Lead, Inventory & Permitting

Isabelle Picard

Senior Biologist

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