Chapter V – Roads, sandpits and forest infrastructures
Division III – Bridge, culverts, removable structures and rudimentary structures
§1. General
Section 86
Every person authorized to build or improve a road crossing a watercourse must ensure that the bridges, culverts or removable structures that are part of the road allow the free flow of the water. The foregoing also applies to a person who repairs a road crossing a watercourse. 
1
Objectives
- To preserve the integrity of an aquatic, wetland or riparian environment
- To ensure the free flow of water
- To ensure the lifespan of a road, bridge or culvert
Bridges, culverts and removable structures must prevent the contact of vehicles with the water and the bed of the watercourse and the carrying of sediments into the aquatic environment.
2
Objectives
- To preserve the integrity of an aquatic, wetland or riparian environment
- To avoid contaminating the forest
- To avoid carrying sediment into an aquatic, wetland or riparian environment
Bridges, culverts and removable structures must be stabilized as soon as possible during the work to prevent any possible risk of erosion.
3
Objectives
- To preserve the integrity of an aquatic, wetland or riparian environment
- To avoid carrying sediment into an aquatic, wetland or riparian environment
- To ensure the lifespan of a road, bridge or culvert
Additional information
The granular materials used to cover the conduit or arch of a culvert must also be stabilized as soon as they are installed. This is especially important because the embankments created during the work and the materials used to stabilize the abutments and pillars of bridges are located just above the watercourse.
The risk of erosion may be reduced by carrying out the different phases of construction, improvement or repair work and stabilization as part of an ongoing sequence. For example, if the embankment is high, it must be stabilized each time fill material is added.
