“Rahman dreamed of the reclamation of
kilometers of fertile land from the sea. He dreamed that the Ganges Delta would
be never be hit by those terrible floods. That Bangladesh’s golden people would
forever be safe behind high dikes. Dikes, delta, land reclamation from sea: the
Netherlands! It was a dream with a logical consequence. Only one country in the
world was able to help Rahman with his vision: the Netherlands!”(source: Springer, 1990; translated from Dutch)
The above was
written by the first ambassador of the Netherlands in Bangladesh after a
conversation with Bangladesh’ first president, Sheikh Mujibur Rahman, in 1972.
Many interventions later, including the famous Flood Action plan that was the
result of deadly floods of the late 1980s, one has to conclude that perhaps,
PERHAPS, there is a tiny chance that Rahman’s “dream” should not be taken too
seriously.
In fact,
I’m quite sure it should not, because it is 1) not realistic and 2) can even
have negative consequences for some areas in Bangladesh.
First, is
it realistic to believe that it is possible to control all the forces of nature
that are exerted on the immensely dynamic delta of Bangladesh? The Ganges,
Brahmaputra and Meghna are among the largest rivers in the world, continuously
eroding and creating land. Actually: the net sedimentation that is deposited by
these rivers have made Bangladesh; have risen the country out of the ocean.
Second,
floods are essential to keeping Bangladesh alive. Not only are seasonal floods
essential for irrigation and fertilization, controlled
flooding can also keep existing river systems alive.
In the
southwest delta of Bangladesh, where tidal rivers are rapidly sedimenting up,
the creation of tidal basins (depoldering) helps keep river systems alive by 1)
keeping river flow relatively high and 2) by redirecting the sediment
deposition from the river to the areas that are temporarily inundated. This, in
a nutshell, is called “Tidal River Management”.
So, should
Bangladesh battle water and build enormous dikes, dredge and poor concrete?
Perhaps in some urban areas this might be helpful, but overall this is not be
the right mindset to tackle water related problems.
In the
southwest delta, it is all about the management of water and silt. The false
belief of many people (mainly engineers and dredgers) that water can be controlled
with concrete and pumps and big dredgers should be taken into serious
consideration.
In his book
Can Bangladesh be protected from floods?,
Hugh Brammer concludes that Bangladesh cannot be, and it
most probably will never be. And it shouldn’t be, because floods are Bangladesh. It has created this
country and, with good management, will also ensure its survival in the future.
Nice Leendert! Bougainville!!
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