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Coastal landslide and sea cliff retreat monitoring for climate adaptation and targeted risk assessment

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2025-07 Appendix D Coastal landslide and sea cliff retreat monitoring for climate adaptation and targeted risk assessment

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Title2025-07 Appendix D Coastal landslide and sea cliff retreat monitoring for climate adaptation and targeted risk assessmentPersonal NameOlsen, Michael JamesLeshchinsky, Ben A.Senogles, AndrewO'Banion, MattBunn, MichaelAllan, Jonathan C.Corporate NameOregon Department of Transportation Research SectionUnited States Federal Highway AdministrationSubjectLandslides -- Oregon -- Pacific Coast -- EvaluationLandslides -- Oregon -- Pacific Coast -- ForecastingCoast changes -- Oregon -- Pacific Coast -- ForecastingCoast changes -- Oregon -- Pacific Coast -- MeasurementGenreTechnical reportsDate2025CollectionTransportationLanguageengPublisherOregon Department of Transportation, Research SectionPlace of PublicationSalem, OREditionFinal reportFormonline resourceExtent1 online resource (4 volumes)Type of ResourcetextIssuancemonographicSummaryThis 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 researchTable of ContentsFinal report -- Appendix B. Coastal instrumentation procedures and documentation -- Appendix C. Implementation of real-time surface monitoring for active landslides -- Appendix D. Preliminary deployment and evaluation of geophone sensors for monitoring wave activity: GeoMoteShieldNoteby Michael J. Olsen, Ben A. Leshchinsky, Andrew Senogles, Matt O'Banion, Michael Bunn (OSU), and Jonathan Allan (DOGAMI) ; for Oregon Department of Transportation, Research Section and Federal Highway Administration"FHWA-OR-RD-26-01"--Technical report documentation page"PROJECT SPR-807.""Five sites...were selected for this research: Silver Point, Arch Cape, Spencer Creek (Beverly Beach), Arizona Inn, and Hooskanaden"--Page 43Includes bibliographical referencesFinal ReportSponsored by Oregon Dept. of Transportation, Research Section and Federal Highway AdminText in English"FHWA-OR-RD-26-01"--Technical report documentation page"PROJECT SPR-807.""Five sites...were selected for this research: Silver Point, Arch Cape, Spencer Creek (Beverly Beach), Arizona Inn, and Hooskanaden"--Page 43

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Other VersionExpansion of (work): Olsen, Michael James Coastal landslide and sea cliff retreat monitoring for climate change adaptation and targeted risk assessment Interim report Salem, OR : Oregon Department of Transportation, Research Section, June 2022 (OCoLC)1334607592Library ClassificationTOCLC Number1527687400Restrictions on Accesshttp://rightsstatements.org/vocab/CNE/1.0Publication SetCoastal landslide and sea cliff retreat monitoring for climate adaptation and targeted risk assessment