The document discusses the waterlogging issue in Chittagong city, Bangladesh, outlining its definition, causes, effects, and potential solutions. Key causes include the filling of canals with garbage, encroachment, and inadequate drainage systems, leading to flooding and public health concerns during rainy seasons. Proposed solutions involve regular maintenance of drainage systems, removal of illegal structures, and preservation of existing water reservoirs to mitigate the problem.

2. Presentation Submitted By:
1.Prachi Rini Saha (1601121)
2.Md. Riman Biswas (1601122)
3.Nahid Sultan Imran (1601123)
4.Farhan Sadek Efaz (1601124)
5.Mostofa Humayun Akram (1601125)
6.Waliul Islam (1601126)
7.Mehedi Hasan (1601127)
8.Pranjol Chakrabarty (1601130)

3. Definition
Chittagong City
Water logging in Chittagong City
Causes of Water logging in Chittagong City
Effects of waterlogging
Probable Solutions to waterlogging
Contents

4. Waterlogging is a form of flooding which
occurs when water get logged due to various
natural and manmade reasons.
Definition

5. Chittagong City
Chittagong is a major coastal city
situated in southeast side of
Bangladesh. It is situated within 22°14'
and 22°24' N Latitude and between
91°46' and 91°53' E Longitude. The city
has more than 2.5 million people of
which 4,009,423 people live in the
metropolitan city. The city is located on
the banks of the Karnaphuli river.

6. Waterlogging in Chittagong City
Chittagong is the second largest
city of Bangladesh. The problem
of waterlogging happens
frequently during rainy seasons. A
moderate to heavy rainfall is
enough to inundate various part
of the city which include roads,
lanes and by-lanes, houses,
markets, shops etc. As a major
economic zone its economy
hampers a lot during rainyseason.
Fig: People use boats as transporting medium as there is no
public transports available on the road (source:
bdnews24.com)

7. The worst sufferers of this major problem
are the dwellers of Bakalia Solosahar,
GEC Moor (crossing), WASA Crossing,
Badurtala, Halishahar, Agrabad, Hat
Hazari, Boalkhali, Baddarhat, Muradpur,
Probartak Moor, Kapasgola, Panchlais,
Chaktai Baddarhat, Muradpur,. The
sufferings of common people knows no
bound. Water logging also causes various
diseases such as cholera, malaria, dengue,
diarrhea etc.
Waterlogging in Chittagong City
Fig: People suffer a lot due to water logging

8. Causes of Waterlogging in Chittagong City
The main reason of water logging in Chittagong city is filling of canals
with garbage, earth sedimentation, encroachment which daunts the excess
flow of water during monsoon. The canals are supposed to flush out the
rain water. But the canals are being illegally invaded by local influential
people which causes disruption to the normal flow of water. About 12
canals have been vanished in the last 48 years. People also fill ponds,
lakes with soil for constructing buildings, apartments, shops, shopping malls
etc resulting to water clogging. Another reason of this problem is the
absence of a well-developed underground drainage system in different
zones of Chittagong. Due to the above mentioned reasons, the normal flow
of rain or excess water gets disturbed and thus create this major problem.

9. Effects of Waterlogging
Water logging damages perishable commodities such as onion, garlic,
lentils, sugar, tea, spices etc. after water enters into local market and
shops. Water logging also causes water pollution. Water borne diseases
also get spread. Trees, roads, houses, household goods get damaged.
Local transport cannot be get available. As a result many important places
like schools, hospitals etc get inaccessible. It disrupt normal life and traffic
movement. Construction and maintenance cost get increased.

10. Probable Solutions to Waterlogging
Frequent dredging, cleaning and removal of blockage from drains, canals,
ponds is needed. The existing primary, secondary and territory drains
should be repaired and rehabilited. Sluice gate and silt trap can be set up
at the mouth of the canals. Utility services like gas, water line running
through drains should be removed and placed elsewhere. All kind of
illegal and useless structures should be removed from the bank of
Karnaphuli river. Navigability of Karnaphuli and its connecting canals
should be restored through frequent dredging. Existing water reservoirs
Should be preserved. Tidal regulations with water preservation point
needs to be installed to avoid water logging.