Environmental and Social Impact Due to Urban

Abstract- Dhaka, the capital city of Bangladesh is one of the populous Mega City in the world. As the growth of urban population tacking place at an exceptionally rapid rate, the city is unable to cope with changing situations due to their internal resource constraints and management limitations. In recent years Dhaka City is facing extensive drainage problems during the monsoon (May to October) as a common and regular problem like water pollution, traffic congestion, air and noise pollution, solid waste disposal etc. This paper focuses on the overall situation of the drainage system, environmental impact and health hazard of urban people by unplanned drainage system of Dhaka city. This work includes some lab test (Water test), questionnaire survey and collection of drainage maps. Inadequate drainage sections, conventional drainage system with low capacity and gravity, natural siltation, absence of inlets and outlets, lack of proper maintenance are the prime causes of blockage in drainage system. Management of drainage system of Dhaka City is presently a challenge for the urban authorities. Therefore, a close coordination among urban authorities and agencies and collaboration between public and private sectors is needed for effective management and sustainable operation of urban drainage system