tool for calculating the carbon footprint of all Colas businesses across scopes 1, 2 and 3a, taking into account the physical flows and expenditure related to the conduct of activities across multiple levels of operations;
Flood mitigation work on the Gier river
Colas was commissioned to divert an 800-metre stretch of the Gier, a river in south-eastern France, in order to protect local residents and property against the risk of a once-in-a-100 year flood event. The work also involved rewilding the riverbed to encourage biodiversity.

FRANCE – Hydraulic and environmental engineering : gently sloping riverbank upstream, floodplain and natural spaces to avoid disrupting beaver populations downstream, and confluence with the Couzon river to expand the Gier’s meander belt.
Mt of CO2 eq.
(a) Adjusted data
%