3rd International Conference on Advances in Civil Engineering
Abstract
Chittagong Metropolitan Area (CMA) is vulnerable to landslide hazards with an increasing trend in
frequency and damage. Devastating landslides have hit CMA repeatedly in recent years. Under a
project financed through ICIMOD of Nepal, detail survey has been conducted to prepare an inventory
of landslides in CMA. Landslide events have been observed to occur at times of much higher rainfall
amount compared to the monthly average. Moreover, rapid urbanization, increased population
density, improper land-use, cutting of hills, indiscriminate deforestation and agricultural practices are
aggravating the landslide vulnerability in CMA. A landslide inventory is helpful for landslide
modelling, runoff modelling and urban land-use planning. A three step methodology, identifying past
landslide events from news archive, information from local people and satellite image interpretation
has been followed. An inventory of 57 landslide events has been prepared which includes landslide
locations, types, dimension, activity, potential causes of landslides, triggering mechanism and slope
stabilizing mechanism. This inventory is expected to be a useful resource for future landslide studies
in this port city of Bangladesh
