Contents: ✓ Definition of Urban Waterlogging ✓ Causes of Urban Waterlogging ✓ Effects of Urban Waterlogging ✓ Urban Waterlogging problems in Bangladesh ✓ Solutions to Urban Waterlogging

1. Waterlogging
in Urban Areas
Kazi Arifin Jamil

2. Contents:
✓ Definition of Urban Waterlogging
✓ Causes of Urban Waterlogging
✓ Effects of Urban Waterlogging
✓ Urban Waterlogging problems in Bangladesh
✓ Solutions to Urban Waterlogging

3. Definition of Urban
Waterlogging :
 Urban waterlogging refers to the phenomenon
when there is rainstorm or short time heavy rain,
which surpasses the capacity of the urban
drainage system, and then waterlogging disaster
happens.

4. Causes of Urban Waterlogging
➜ Geological and
climate change
factors
➜ Absence of a well-
developed
underground
drainage system
➜ Change in
underlying surface
condition
➜ Low terrain and
Lag-management
issues
➜ Filling of canals, lakes,
ponds with soil for
constructing buildings
➜ Filling drains with
garbage and man
made waste

5. Effects of Urban Waterlogging
➜ Entering local markets perishable commodities such as rice , onion,
garlic, potato, sugar, tea, spices etc receives damage.
➜ Local transports become unavailable hence traffic gets paralysis.
➜ Trees, roads, houses, household goods receives infrastructure
damage.
➜ Water logging also causes water pollution.
➜ Water borne diseases also get spread.
➜ Construction and maintenance cost increases.
➜ Disrupts daily life and slows down working capability.

6. Urban Waterlogging problems
in Bangladesh :
In Bangladesh waterlogging happens
mainly and frequently during rainy
seasons. Even a moderate to heavy
downpour will submerge or inundate
various parts of the city such as lanes,
streets, houses, markets, shops etc.
Economy suffers severely during the rai
ny season.

7. Solutions to Urban Waterlogging
➜ Separating rainwater from
the sewer system
➜ Cleaning and removal of
blockage from drains, canals,
ponds
➜ Improving water distribution,
by putting in place water
control structures
➜ Utility services like gas,
water line which runs trough
drains should be removed
and placed elsewhere
➜ All kind of illegal and
useless structures
should be removed
➜ Installing tide regulations
and water preservation
points.

8. That will be all
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