Abstract
The city of Saguenay, in the province of Quebec, is located in an area with a hilly topography and where sensitive marine clays are predominant. The slopes throughout the city are either former riverbanks or scarps of old large retrogressive landslides and their height can vary from a few meters to dozens of meters. Although the toe of these slopes is no longer subject to erosion, they can still be affected by shallow landslides. The spreading debris of such landslides is a threat to buildings located at the toe of slopes and thus a significant hazard for the safety of residents. This article presents the approach developed jointly by the Government of Quebec and the city of Saguenay to manage the risks associated with this hazard. Following the mapping of landslide prone areas, risk analyses allowed to bring out areas most exposed to shallow landslides. An annual inspection program was implemented in 2007 by the city of Saguenay and allowed on numerous occasions to detect early signs of landslides and take preventive action, in the form of stabilization work. This program has considerably reduced the risk to the population.
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References
Bouchard R, Michaud V, Demers D (2008) Le glissement de la rue McNicoll, 20 juillet 1996, Saguenay, Québec : causes et conséquences. In: Proceeding of the 4th Canadian Conference on Geohazards: from causes to management. Presse de l’université Laval, Québec 2008, p 503–510
Demers D, Potvin J, Robitaille D (1999) Gestion des risques de glissement de terrain liés aux pluies des 19 et 20 juillet 1996 au Saguenay – Lac-Saint-Jean. Rapport soumis au Bureau de reconstruction et de relance du Saguenay – Lac-Saint-Jean. Ministère des Transports du Québec.
Demers D, Robitaille D, Potvin J, Bilodeau C, Dupuis C (2008) La gestion des glissements de terrain dans les sols argileux au Québec. In: Proceeding of the 4th Canadian Conference on Geohazards : from causes to management. Presse de l’université Laval, Québec 2008, p 519–526
Geotechnical Engineering Office (1998) Landslides and boulder falls from natural terrain: interim risk guidelines. GEO Report No. 75, Geotechnical Engineering Office, The Government of the Hong Kong Special Administrative Region
Levasseur M (2003) Contribution des systèmes d’information géographique à l’analyse quantitative de l’aléa « glissement de terrain »- Exemple d’application au secteur de la ville de La Baie, Québec, Québec. Mémoire de maîtrise, INRS-E.T.E, Université du Québec, 213 p
Locat P, Demers D, Lessard D, Ouellet D (2008) Le sinistre d’avril 2005 à Petite-Rivière-Saint-François : des causes, à la gestion. In: Proceeding of the 4th Canadian Conference on Geohazards: from causes to management. Presse de l’université Laval, Québec 2008, p 559–567
Ministère de la Sécurité publique du Québec (2008) Gestion des risques en sécurité civile. Gouvernement du Québec, Available via http://www.securitepublique.gouv.qc.ca/securite-civile/publications-statistiques-civile.html. Accessed 10 Oct 2016
Ministère de la Sécurité publique (2013a) Programme général d’aide financière lors de sinistres réels ou imminent. Available via http://www.securitepublique.gouv.qc.ca/securite-civile/aide-financiere-sinistres/programmes-aide-sinistres/general/objet-general.html. Accessed 10 Oct 2016
Ministère de la Sécurité publique du Québec (2013b) Cadre de prévention des sinistres 2013–2020. Available via http://www.securitepublique.gouv.qc.ca/securite-civile/soutien-partenaires/soutien-aux-municipalites/cadre-pour-la-prevention-de-sinistres.html. Accessed 10 Oct 2016
Perret D, Bégin C (1997) Inventaire des glissements de terrain associés aux fortes pluies de la mi-juillet 1996: Région du Saguenay/Lac Saint-Jean. Rapport remis au Bureau régional de la reconstruction, ministère du Conseil exécutif du Québec – L’institut national de la recherche scientifique – INRS-Géoressources, 26 p
Potvin J, Thibault C, Demers D, Bilodeau C (2014) An overview of the mapping of landslide-prone areas and risk management strategies in the Province of Québec, Canada. In: Landslides in sensitive clays – from geosciences to risk management, vol 36. Springer
Thibault C, Potvin J, Demers D (2008) Development of a quantitative approach for evaluating and managing the risk associated with highly retrogressive slides. In: Proceedings of the 61th Canadian conference of geotechnique, Edmonton, pp 1055–1063
Acknowledgements
This publication was authorized by the departmental authorities of the authors concerned. They wish to thank their many colleagues who participated in the discussions and the development of this risk management process, as well as Paul Flon for the revision of the article.
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Potvin, J., Mompin, R., Thibault, C., Demers, D., Bilodeau, C., Desbiens, L. (2017). Saguenay Risk Management. In: Thakur, V., L'Heureux, JS., Locat, A. (eds) Landslides in Sensitive Clays. Advances in Natural and Technological Hazards Research, vol 46. Springer, Cham. https://doi.org/10.1007/978-3-319-56487-6_37
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DOI: https://doi.org/10.1007/978-3-319-56487-6_37
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