Newly laid drainage pipes in Bukit Kiara park exposed after a storm - pic by Lim Chui Choo, April 22, 2014
'The least movement is of importance to all nature. The entire ocean is affected by a pebble.' – Blaise Pascal
The costly high density polyethylene (HDPE) pipes wrapped in geotextiles recently laid in Kiara Park were put to the test and ‘exposed’ after the heavy downpour and storm that lashed the city on 21 April 2014.
The results were not just visible, but broadcasted all over the park the morning after as park-users lamented, “Did you see the slope and the drains?“
The existing open drains lined with precast concrete sections have been serving well for years by collecting storm-water flow from the hill slopes of Bukit Kiara and rapidly conveying it into the streams and lake.
All that the National Landscape Department (JLN) needed to do was to regularly clear the drains of accumulated sediment, twigs and leaves.
So why waste taxpayers’ monies on the costly HDPE pipe conduit in its ‘upgrades’ in Kiara Park?
Concerns from park-users about these HDPE pipes causing erosion had been raised in September 2013 when JLN started laying the costly HDPE pipes up on the jogging track from the entrance of park to the Indy Jones suspension bridge.
A retired engineer with 18 years of experience with the Department of Irrigation and Drainage (JPS) had pointed out then the likely negative effects of using the HDPE pipeline which may cause erosion given the terrain in the park. He had suggested that it is better to leave the existing drains open as they were.
Another park-user, Datuk Kamal, geologist and consultant, had echoed the same concerns, all of which were highlighted to Friends of Bukit Kiara (FoBK), the NGO fighting for the preservation of 189 ha of the people’s forest park in Bukit Kiara, and the relevant authorities.
Thankfully, the HDPE pipe conduit which was planned for the whole jogging track in Lembah Kiara Park (LKP) then was nibbed in the bud or we may well be seeing a disastrous ‘clogging track’ all the way up the slopes with fallen trees and a possible landslide by now.
What had happened on a much reduced scale at the lower end of the slope was storm-water had swarmped the buried conduits and flowed swiftly above the stonefill.
At steep stretches, the swift (probably supercritical) flow washed away the stones and cut deep gullies in the ground, exposing the HDPE pipes, even uplifting them.
Is this Mother Nature‘s way of telling man, in particular JLN and the relevant authorities, to leave the people’s park as it is?
And to preserve the forest park as a natural, unique lasting legacy for the people as it was meant to be when cabinet designated 189 ha of Bukit Kiara to be Taman Awam Bersekala Besar (TABB) in 2007 by honouring that promise with the gazetting of Bukit Kiara as urged by FoBK and its coalition partners of 47 resident associations and NGOs? – April 22, 2014.
* Lim Chui Choo and P.W Chin read The Malaysian Insider.
* This is the personal opinion of the writer or publication and does not necessarily represent the views of The Malaysian Insider.
[More pics below by TRAKS]