PETALING JAYA - Just a week after a 690-tonne overhead concrete span collapsed at an MRT construction site near Sungai Buloh, a second incident has the Mass Rapid Transit Corporation (MRT Corp) scrambling to do some damage control.
This time, several precast concrete segments fell off a trailer onto a road, causing traffic congestion near the Billion roundabout flyover along Jalan Cheras at 11am yesterday.
The segments were being transported to the Pudu launch shaft located near Jalan Bukit Bintang.
The driver of the trailer, carrying 16 segments destined for an MRT tunnel, had to make an abrupt stop to avoid hitting a vehicle in front.
As the trailer swerved to avoid a collision, 12 pieces of concrete tunnel lining segments fell.
Although no one was hurt in the incident, it caused a traffic congestion that lasted more than three hours as workers cleared the road.
Initial information available showed that the driver has 23 years of lorry driving experience and had already attended the induction course for transporting segments, carried out by the tunnelling contractor, MMC-Gamuda KVMRT (T) Sdn Bhd, for all lorry drivers.
MRT Corp said the concrete segments were removed by 3.30pm.
It was understood that 10 of the segments weigh around 2.3 tonnes each, while the other two weigh nearly a tonne each.
These precast segments are joined inside a tunnel boring machine to form rings that line the entire length of the MRT tunnel.
In last Monday's incident, three foreign workers were killed, which led to the prompt resignation of MRT Corp CEO Datuk Azhar Abdul Hamid.