Since 2021, we have been taking stock of residual materials
on our sites to better understand the f low of materials
generated and f ind solutions to divert them from landf ills.
In 2022, our projects generated 148,228 tons of residual
materials (not including soil). The deconstruction of the
original Champlain Bridge alone generated 104,539 tons of
residual materials that year. Across all our projects, we diverted
92% of residual materials from landf ills. Excluding residual
materials generated on the deconstruction of the original
Champlain Bridge, we diverted 72% of residual materials
from landf ills, a 4% increase compared with 2021.
For all our building projects seeking sustainable certif ication
this number rose to 98 which exceeds the minimum target
of 75 required for LEED certif ication This proves that
seeking certif ication is an important incentive for recovering
residual materials
In 2023 we will be focussing our efforts on developing a
traceability platform to optimize data collection and track
the f low of residual materials generated by our projects
Were relying on our sense of innovation and our teams
expertise to develop this transformative tool and respond
to the needs of our clients who would like greater visibility
in the traceability of their construction residues
2021 2022
2021 2022
Diversion rate
Building projects certif ied
or seeking certif ication
Noncertif ied projects
Residual materials generated on site by type in tons
T o n s
90
68
Matières résiduelles en chiffres
0
3000
6000
9000
12000
15000
2021
Tonnes
3 000
6 000
9 000
12 000
15 000
Tonnes
14 029
12 511
3 877
3 671
1 122
774
565
506
486
470
324
51
Aggregates
Metal
Mixed and domestic waste
Gypsum
Paper and cardboard
Plastic
Residual hazardous materials
Fine asbestos f ibres and polystyrene
Concrete and cement
Mixed materials
Wood and f ibres
Asphalt
Inventory of our
residual materials
