A Century of Landslide Activity in Glaciolacustrine Deposits in Jeffersonville, Vermont, USA
Adam F Sevi, GE Springston, Leslie Kanat
In the proceedings of: GeoHazards 6: 6th Canadian Geohazards ConferenceSession: People and Property
ABSTRACT: At least five complex earth slide–flows have occurred over the past century on the side of a 46-m-high terrace adjacent to the Village of Jeffersonville, Vermont, USA. At least two of the landslides crossed the Brewster River and reached the edge of the village. Residences at the top could be at risk and the run-out zone for future slides could include a school, shops, and residences. The slope is underlain by varved glaciolacustrine sands, silts, and clays. The causes of instability include toe erosion by the river and high pore-pressure due to rain or snowmelt. Areas of concern have been identified along the northern part of the slope and above the school.
RÉSUMÉ: Au moins cinq glissement–écoulement de terrain complexes ont eu lieu depuis un siècle sur le flanc d'une terrasse de 46 m de haut près du Village de Jeffersonville, Vermont, USA. Au moins deux des glissements de terrain ont traversé la rivière Brewster et atteint le bord du village. Résidences au sommet pourraient être en péril et la zone de battement pour glissements futures pourrait comprendre une école, commerces et résidences. La pente est sous-tendue par les argiles, limons et sables glacio-lacustres varvées. Les causes d'instabilité incluent orteil l'érosion de la rivière et de la pression interstitielle élevée en raison de la pluie ou de fonte des neiges. Secteurs préoccupants ont été identifiés le long de la partie nord de la pente et au-dessus de l'école.
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Cite this article:
Sevi, Adam F, Springston, GE, Kanat, Leslie (2014) A Century of Landslide Activity in Glaciolacustrine Deposits in Jeffersonville, Vermont, USA in GeoHazards6. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Sevi_GeoHazards6_146,
author = {{Sevi, Adam F}, {Springston, GE}, {Kanat, Leslie}}
title = {A Century of Landslide Activity in Glaciolacustrine Deposits in Jeffersonville, Vermont, USA }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {A Century of Landslide Activity in Glaciolacustrine Deposits in Jeffersonville, Vermont, USA }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }