The use of 3-D mapping in geological research and risks analysis : evaluation of a water supply project in the Kathmandu-Melamchi area
to geological and geotechnical research and risk analysis, concerns here the evaluation of the new water supply project Kathmandu-Melamchi proposed by WHO-UNDP and the World Bank.
In the Kathmandu Valley, the major geo-environmental problems arise from haphazard exploitation of geologic resources, local landslide zones, severe problems of garbage disposal, river flooding and a dramatic river pollution. The map was prepared
by the use of GIS techniques. It contains all basic geological and environmental data, as geotechnical risk zones, areas for preferable extraction of construction material and those not be allowed to be exploited, areas of immediate need of reforestation