In force: 2020-12-31
22. Construction of a deflector in the littoral zone must be carried out at a point where the littoral zone is no wider than 4.5 m.
The same applies for the construction of a weir, unless it is associated with a culvert installed by the Minister responsible for the Act respecting roads (chapter V-9) and is aimed at permitting the free circulation of fish, in which case 2 weirs may be installed within a distance corresponding to 4 times the opening of the culvert.
A weir must be equipped with a notch and, once installed, may not cause the water level between the areas upstream and downstream of the undertaking to vary by more than 20 cm from the water line.