Did you know?

In the plans to replace the culvert on chemin de la Vallée-Missisquoi, the Public Works and Fixed Assets Department has taken the wildlife crossing into account: the safe passage of small animals and aquatic animals has thus been provided for.

The small round tunnel parallel to the culvert is called a “connectivity passage”. It is intended solely for the dry passage of small animals (e.g. foxes, raccoons, etc.). It has been installed high enough to prevent water from penetrating inside.

The small concrete walls inside the large culvert are called “cut-off trench” (parafouilles in French). They serve to slow the flow of water and create small pools for aquatic animals, allowing them to move back and forth across the culvert through the central opening. The same cut-off trenches can be found in the new culvert on Chemin Réal.

The basin created at the outlet of the culvert is called a “dissipation basin”: it serves to disperse the water to slow down the pressure of the current, and to filter out organic particles by decantion before the water continues its course.