Bridges to Biodiversity
the impact of bridges on biodiversity
Presentation 50 min
Part 1: Best management practices (BMP) for stormwaters from Bridges (15min)
- Stormwater as a significant source of pollution in bridge design.
- No specific regulation.
- Goal: no direct untreated stormwater discharge from bridges’ stormwater pipes into waterbodies
- Examples (and utilization of Nature-based solutions (NbS))
Part 2: Utilization of Biodiversity Net Gain (BNG) approach in bridge projects (15 min)
- KPIs for biodiversity when estimating impacts of bridges on biodiversity
- Supporting biodiversity before, during and after each bridge project.
- Evaluation of nature’s biodiversity state locally at bridge site.
- Estimation of biodiversity and comparison between initial and final state of biodiversity measured at site (Biodiversity Net Gain (BNG)).
Part 3: Embodied biodiversity impact of construction materials (20 min)
- Method for defining and estimating.
- Key pressure framework (land-use change (resulting in habitat loss), direct exploitation of species, pollution, introduction of invasive species, climate change)
- Embodied biodiversity impacts of 6 key construction materials
- Challenges and Roadmap to action
Discussions and comments (40 min):
- Solutions for stormwaters from bridges in the Nordic countries
- Possible utilization of BNG approach in the Nordic countries
- Embodied biodiversity impact of construction materials – examples, challenges
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