Landslides In The Kitimat-Morice River Corridor, Northwest British Columbia, Canada

A. Blais-Stevens, D.E. Maynard, I. Weiland, V. Singhroy, J. Li, P. Behnia, M.-A. Fobert

In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC

Session: Landslides and Geohazards III

ABSTRACT: The 105-km long Kitimat-Morice River corridor features mostly interconnecting valleys linking the coastal community of Kitimat in northwestern British Columbia with the interior valley system of Morice River. Surficial geology, landslide inventory and terrain stability mapping were carried out for the corridor. Over 150 landslide deposits of various types have been identified in the study area. Moreover, InSAR monitoring of slopes west of Nimbus Mountain in Hoult Creek valley using RADARSAT-2 data tracked debris movement in debris flow channels over a 19 month period. The Flow-R Model was tested for these debris flow channels to assess their debris flow susceptibility. The main goal of this activity is to provide baseline geoscience information on landslides for potential infrastructure development (e.g., pipelines and all-season roads) to stakeholders and decision-makers.

RÉSUMÉ: Le corridor Kitimat-rivière Morice, d'une longueur de 105 km, comprend principalement des vallées interconnectées reliant la communauté côtière de Kitimat, dans le nord-ouest de la Colombie-Britannique, au système intérieur de la vallée de la rivière Morice. La cartographie des sédiments de surface et de la stabilité des pentes et la compilation des dépôts de glissements de terrain ont été réalisées pour tout le corridor. On compte plus de 150 glissements de terrain de types satellitaires RADARSAT-2 pour la région à démontrent des accumulations de débris sur une période de 19 mois dans les chenaux en pente abrupte. La susceptibilité aux coulées de débris a aussi été calculée avec le modèle Flow-R. Bref, le but principal de notre étude est de fournir

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Cite this article:
A. Blais-Stevens; D.E. Maynard; I. Weiland; V. Singhroy; J. Li; P. Behnia; M.-A. Fobert (2018) Landslides In The Kitimat-Morice River Corridor, Northwest British Columbia, Canada in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.

@article{geo2018Paper604,author = A. Blais-Stevens; D.E. Maynard; I. Weiland; V. Singhroy; J. Li; P. Behnia; M.-A. Fobert,title = Landslides In The Kitimat-Morice River Corridor, Northwest British Columbia, Canada ,year = 2018}