BANGI: Physical development in Ampang and the surrounding areas hasArtikel ini keluar pada 17/12/2004
reached its substantial stage, said geo-technicial expert and Kuala Lumpur
Infrastructure University College (KLIUC) president Professor Dr Mahadzer
"Of course, we cannot stop development, but we have to control it so
that it would not cause any more catastrophic effects," he said.
Since the November 2002 tragedy that saw eight people killed after
the two-storey house in Taman Hillview in Bukit Antarabangsa was flattened by a landslide,
Mahadzer and his team from Ikram Infrastructure Research
Centre was entrusted to do a comprehensive study on the area's slope
stability and gradient.
Their study stretched over 110-sq km area from Klang Gates in Hulu Klang
and Bukit Sungai Puteh near Cheras.
According to Mahadzer, they had proposed to the Selangor Government to
classify the areas according to the height above sea level and slope
Areas such as Kampung Baru Ampang and Kampung Tasik are placed in Class
One category, as they are less than 75 metres above sea level, with slopes
less than five degrees.
Taman Ukay Heights and Taman Megah Jaya are in Class Two
(between 75 and 150 metres above sea level, with between five and 15 degrees gradient),
while Taman Hillview, Bukit Antarabangsa and Taman Zooview are both Class
Three and Four with slope gradient between 15 and 35 degrees.
"The problem of landslide is not alarming for those staying on top of these hilly areas.
But it is so to those living at the foot of the hills," he said.
For Ampang areas, he said, most of the flat lands are densely populated
and the only areas left for future development are on hilly terrain.
"With such bad experiences, it is important that we classify the land
according to the classes where Class Four is the most steep requiring
strict development regulations," he said.
He said putting aside natural landslides caused by nature, human
`intervention' is the main contribution to landslides and erosions at
these hilly areas.
He said before the guidelines for hill slope development were introduced
(based on recommendation from Ikram) by the State Government last year,
there was no proper monitoring to ensure that developers carried out
slope stability measures at their work sites.
"Some developers blatantly cut the hills and even dumped unwanted earth
into the gully clogging the water channel which resulted in erosions and landslides."
He said with the classification, tighter guidelines are needed before
any project could be approved.
He said besides the required Environmental Impact Assessment (EIA)
report, developers must submit comprehensive geo-technical report to the
respective local authorities.
Geotechnical report is also required in areas where erosions and
landslides had occurred even if the area is not classified under Class
"The best way is to study the whole area, and not just the development
site," he said.
"Thus, we recommended that local authorities pool these hillside
developers together so development can be carried out systematically."
Mahadzer said they also recommended only minimum hill cutting and
development should follow the original contour of a hill.
"We should maintain a low density development on these areas and only
five-storey buildings are allowed."
He added that construction sites at these areas must be regularly
monitored, adding that it is also important to ensure that there were
adequate silt traps and retention ponds to prevent mudslides or erosions.
"Now that the authorities have taken precautions regarding hill slope projects, landslides,
if they occur, would not be as serious as what we had experienced," he said.
* THE Malay Mail is doing a series on hill slope development in
Selangor. Today's segment is on Ikram Bhd's views on hill slope
development in Ampang and on the survey on topography accuracy.
Aku sebenarnya dah kehabisan kata-kata pasal hal tanah runtuh di Bukit Antarabangsa ni. Siapa nak disalahkan? Alam? Salahkan alam maknanya salahkan Tuhan. Kerajaan? Atau orang yang beli rumah kat situ walaupun dah tahu kawasan kat situ tak stabil?
Gambar dicuri dari www.mstar.com.my
Semoga Allah belas pada mangsa-mangsa tanah runtuh.