Coastal Landslide and Sea Cliff Retreat Monitoring for Climate Change Adaptation and Targeted Risk Assessment [2025]

Details

• Creators:
  Olsen, Michael J. ; Leshchinsky, Ben A. ; Senogles, Andrew ; O’Banion, Matt ; Bunn, Michael ; Allan, Jonathan
• Corporate Creators:
  Oregon State University
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration ; Oregon Department of Transportation. Research Section
• Subject/TRT Terms:
  Asset Management Climate Change Coastal Engineering Coastal Erosion Erosion Geographic Information Systems Landslides Light Emitting Diodes Risk Assessment Sea Cliffs Sensors Slope Stability

  More +
• Publication/ Report Number:
  FHWA-OR-RD-26-01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon;United States
• Edition:
  Final Report
• Contracting Officer:
  Mohney, Curran; Glover-Cutter, Kira
• Corporate Publisher:
  Oregon Department of Transportation. Research Section
• Abstract:
  This research presents new tools, methodologies, and insights obtained from an extensive 7-year monitoring campaign at five coastal sites affected by erosion and landsliding. The objective of this research is to develop a more comprehensive, data-driven framework to prioritize coastal asset management. This new research for ODOT builds upon recent smaller-scale, foundational efforts, and recommendations in order to (1) Evaluate five representative sites reflecting a combination of coastal geologic terrains, landslide types, and sea cliff erosion activities, (2) capture detailed landslide and sea cliff geometry and movement using traditional and advanced 3D technologies for quantifying displacement (e.g., lidar, UAS structure from motion Multiview stereopsis photogrammetry, in-situ GNSS receivers, and real-time, remote, in-place MEMS sensors), (3) quantify changes in landslide movement, groundwater change, and sea cliff erosion rates over an extended 7-year timeline to fully capture the episodic nature of sea cliff erosion in the context of climate change events, and (4) develop a GIS/Lidar-based management framework for targeted risk assessment and climate change adaptation planning including guidelines for future evaluations of coastal infrastructure sites. In addition to long term benefits associated with the research, the data, tools, and methods developed in this research had immediate impact at several of the sites when failures occurred during the course of the research.
• Format:
  PDF
• Funding:
  SPR-807
• Collection(s):
  Transportation Resilience & Vulnerability Collection
• Main Document Checksum:
  urn:sha-512:c2e2a0bf4d802a30b794df7e0b58972eeb23cdf3d468c6d3e79a342224981638df77427fe8b2355e0be55a8b40b38aa32a627c70959735c29a21cd9e8e487b68
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84851/dot_84851_DS1.pdf
• File Type:
  [PDF - 61.78 MB ]