• The eastern part of the city is situated on the comparatively higher Hooghly levee, while the western part occupies the portion of Howrah swamps, extending from north to south between the Hooghly and the Saraswati river.
• The swamps located in the Rajpur area and Amta prevent the water from discharging in the river efficiently.
• The river channel of Hooghly becomes very broad in monsoon and rises above sea level, thus preventing water from low lying area of the levee region of Howrah to discharge the water in the river.
• The important regions of the city like Shibpur, Salkia, Bamangachi, Chakraberia and Santragachi were interspersed with low lying marshes and paddy fields, which used to form as vast sheets of water during monsoon. Although these areas have been urbanized now and the built up density has increased, the effect of water accumulation still persists.
• The big marshy lands are now located in Padmapukur and Kasundia.

The trends and outlets of natural drainage pattern of Howrah city claim a north-west to south-east flow of storm water. Such observations have led to the development of a robust drainage infrastructure over different time periods by the Howrah Municipal Corporation, to prevent any disaster from water logging in the city.

The main task of the Department is to prevent water logging due to clogging of Sewer Lines. This is done by Jet Cum Suction Machines and Bucket Machines. In case of minor blockage departmental labours and agencies are engaged for Desilting of High Drains & removing of blockage.

Howrah Municipal Corporation
4, M.G.Road, 3^rd Floor, Annexe Bldg.
Howrah-711101