Archive for the ‘flood’ Category

It’s raining again

Apropos of the last post: Today, with fairly mild and persistent rain since last night, there are nice big patches of water where one doesn’t normally see them, like Upper Serangoon Road (fed by a puddle in the former cemetery), Bendemeer Road (nice muddy stuff coming off the construction site @ City View @ Boon Keng), and Sam Leong Road.

No pix, sorry, but here’s one from last July.

Say, aren’t BMWs supposed to have perfect 50/50 weight distribution? Oh well…

I hope Delft Hydraulics wrote themselves a nice get-out-of-future-disputes letter when the fingers start getting pointed in earnest. These are not the letters you are looking for.

Categories: climate, flood

Venice of the East

( alt title: A series of unfortunate experiments, item 6224* )

So the Minister for the Environment has determined that the flood incident at Orchard Rd was “caused by an intense storm”. Let’s dive below the surface (groan) of this statement and see where a bit of arithmetic might lead us to. This could be a PSLE maths question some day.

Boon or bane? We report, you decide.
(photo credit: Green Future / Flickr)

The PUB’s webpage on Marina Barrage ( is most informative. From there, we learn that the barrage has a catchment area of 10,000 hectares, and that during high tide, “giant pumps which are capable of pumping an Olympics-size swimming pool per minute will drain excess storm water into the sea”.

The Minister also acknowledged in Parliament (9 Feb 2009) that any litter thrown into canals in areas as far upstream as Ang Mo Kio will end up in the Marina Reservoir.

Let’s do some sums to see how this works out when it rains. Read more…