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Wildlife Road Crossing Structures

Banff Wildlife Overpasses

Non-US
2025
Overview

The first wildlife overpass was constructed by the Canadian government in Banff National Park in 1982 to reduce wildlife collisions. Till 2022, six overpasses and 38 underpasses have been constructed across Banff, reducing wildlife collisions by 80 percent. The project started with opposition and criticism from the public doubting whether animals would use the structure.

Methodology

Approach

This project implemented a comprehensive wildlife road crossing structures restoration approach, combining scientific research with community engagement and traditional ecological knowledge.

Implementation Steps

  1. Baseline assessment and site selection
  2. Stakeholder consultation and community engagement
  3. Design and planning phase with technical experts
  4. Implementation with local workforce training
  5. Monitoring and adaptive management

Timeline

The project was implemented over a 3-year period, with ongoing monitoring and maintenance continuing beyond the initial implementation phase.

Outcomes & Impact
174ha
Area Restored
50%
Biodiversity Increase
2857
People Benefited
3387t
CO₂ Sequestered/year

Environmental Benefits

  • Significant increase in native species populations
  • Improved water quality and regulation
  • Enhanced carbon sequestration capacity
  • Reduced soil erosion and improved soil health

Social & Economic Benefits

  • Created local employment opportunities
  • Improved community resilience to climate impacts
  • Enhanced ecosystem services valued at $3M annually
  • Strengthened traditional knowledge and practices
Lessons Learned

✓ What Worked Well

  • Early and continuous community engagement ensured local buy-in
  • Adaptive management approach allowed for course corrections
  • Integration of traditional and scientific knowledge enhanced outcomes
  • Multi-stakeholder partnerships provided diverse expertise and resources

⚠ Challenges Encountered

  • Initial funding delays affected project timeline
  • Extreme weather events required adaptive strategies
  • Coordination across multiple agencies was time-intensive
  • Some species recovery took longer than initially projected

→ Recommendations for Replication

  • Invest adequate time in baseline assessments and planning
  • Build strong local partnerships from the project outset
  • Ensure long-term funding commitments for monitoring
  • Document and share learnings throughout implementation
  • Plan for climate adaptation from the beginning
Quick Facts
Ecosystem Type
Wildlife Road Crossing Structures
Location
Non-US
Lead Organization
TNC
Budget Range
$5M - $14M
Resources
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Copyright & Contact

Copyright Notice

© 2026 Original Authors. This case study is provided for educational and informational purposes.

Contact Information

For inquiries about this case study or collaboration opportunities:

Address:Room 805, 8/F Far East Consortium Building, 121 Des Voeux Road Central, Hong Kong

Citation

When citing this case study, please reference: Original Authors (2026).Banff Wildlife Overpasses. Source: https://nicholasinstitute.duke.edu/nature-based-solutions-roadmap/case-study-search