Arup’s 2027 TNFD nature-risk disclosures: design implications for project engineers
Reviewed by Tom Sullivan

First reported on New Civil Engineer
30 Second Briefing
Arup has become a Taskforce on Nature-related Financial Disclosures (TNFD) adopter, committing to publish nature-related risks and dependencies across its global project portfolio by the end of 2027. The consultancy plans to embed TNFD-aligned screening into project design and delivery, covering impacts on ecosystems such as wetlands, river catchments and urban green corridors. For geotechnical and civil teams, this signals earlier constraints mapping around biodiversity, soil and groundwater, and more explicit reporting of nature-related liabilities alongside traditional geotechnical and flood risk assessments.
Technical Brief
- TNFD adoption will require Arup to formalise nature-related risk registers alongside existing project risk registers.
- Integration of TNFD will likely push earlier baseline surveys for soils, groundwater and ecological receptors in feasibility stages.
- Geotechnical design options (e.g. cut-and-cover vs bored tunnels) may be explicitly compared on habitat disturbance and groundwater drawdown.
- Nature-related disclosures will force clearer documentation of construction-phase impacts from dewatering, spoil placement and temporary works footprints.
- For linear infrastructure, route selection processes will need traceable justification where alignments intersect sensitive catchments or green corridors.
- Contractors and JV partners will face stronger data requests on materials sourcing, site runoff control and reinstatement performance.
- Over time, TNFD-style reporting could align with existing flood risk, EIA and biodiversity net gain documentation into a single disclosure pack.
Our Take
Arup already features across several complex infrastructure pieces in our database – from Auckland’s 30‑year motorway plan to Perth freight rail upgrades – so TNFD‑aligned nature risk disclosure by 2027 is likely to filter directly into how these long‑life transport corridors are planned and consented.
Linking Paula Walsh’s recent call for treating infrastructure as interdependent systems with TNFD‑style nature risk reporting implies Arup may start quantifying ecosystem dependencies at a network scale (e.g. catchments, coastal systems) rather than at single‑asset level, affecting option selection and design criteria on future schemes.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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