The image depicts the importance of a stopbank and how it can protect the areas where there is a probability of increased floods.
Overall, without the construction of a barrier, incase of any water calamity, there are high chances of water raising to a dangerous level near human dwellings which can become an issue of concern whereas the best solution for this is a bank that prevents excess fluid entering from any given river or drain.
Firstly, the liquid in the river is taken to have increased to a 100-year flood level and without the existence of a stopbank, this liquid flows freely towards buildings in that area, even though they are raised, they have a heavy chance of getting affected as there will only be a freeboard level of 300mm which is quiet less and is dangerous to have under one's home.
However, this issue can be addressed efficiently if there is a construction of a stopbank with a berm and a floodgate, near the drains that are present as this bank can accomadate the freeboard and chanel water which results in lesser amount of water bombarding into housing areas in case of a flood. Even though, a little amount of liquid escapes, it will form a internal ponding area below the residence. Although, internal runoff can also account for water that accumulates under a building, it would not be a matter of concern.
The image depicts the importance of a
stopbank
and how it can protect the
areas
where there is a probability of increased floods.
Overall
, without the construction of a barrier,
incase of
any
water
calamity, there are high chances of
water
raising to a
dangerous
level near human dwellings which can become an issue of concern whereas the best solution for this is a bank that
prevents
excess fluid entering from any
given
river or drain.
Firstly
, the liquid in the river
is taken
to have increased to a 100-year flood level and without the existence of a
stopbank
, this liquid flows
freely
towards buildings in that
area
,
even though
they
are raised
, they have a heavy chance of getting
affected
as there will
only
be a freeboard level of
300mm
which is
quiet
less and is
dangerous
to have under one's home.
However
, this issue can
be addressed
efficiently
if there is a construction of a
stopbank
with a berm and a floodgate, near the drains that are present as this bank can
accomadate
the freeboard and
chanel
water
which results in lesser amount of
water
bombarding into housing
areas
in case of a flood.
Even though
, a
little
amount of liquid escapes, it will form
a
internal
ponding
area
below the residence. Although, internal runoff can
also
account for
water
that accumulates under a building, it would not be a matter of concern.