This is the 3rd time!
After repairing it for RM70 million and engaging the German experts on the strengthening job, the fear of this concrete structural failures is back!
Today the police have to closed the flyover in Kepong to all traffic and the road below it after cracks appeared on a pillar.
City Deputy Traffic Chief DSP Ng Fook Long said today that police closed that section of the MRR2 at 10.30am following a directive from the Public Works Department (JKR) and Kuala Lumpur City Hall (DBKL), adding that the cracks had appeared on Pillar 28.
A driver of the RapidKL bus service, Zainuddin Mohamad Taib, 37, said he was informed by another driver that he saw small stones falling from the flyover as he passed under it at 3.30 am. He said the police were informed.
This is the third time the 1.7-km MRR2 Kepong flyover has been closed because of cracks.
It was first closed in August 2004 and then for the second time in February 2006 for repairs.
(Source: NST and TheStar)
Halcrow’s report was prepared by its bridge engineering director Roger J. Buckby and submitted to the Work’s Minister.
Samy Vellu had in August 2004 shot down questions of a design fault. With Halcrow’s report, he finally admitted that it was the contractor’s fault as this is a Design and Built Contract awarded under the DB/T (2002) Contract Form.
“The main cause of excessive cracking in the crosshead to the T-shaped pier is a deficiency in the design and the anchorage of the columns reinforced into the crosshead."
"There is also a deficiency in the design of the transverse reinforcement in the top of the crossheads to resist splitting forces between bearings. The horizontal cracking in the crosshead directly above the columns is a direct result of the inadequate anchorage of the column bars into the crosshead.”
As reported on NST Feb. 22nd 2006, Works Minister Datuk Seri S. Samy Vellu said the decision was reached at the Cabinet meeting and the ministry’s secretary-general is discussing with the consultants on the conceptual layout of the work plan, which will be ready by the end of March 2006.
"They have assured us that the repair work on 31 pillars would be completed in 4 1/2 months," Samy said.
The cost is expected to be more than RM40 million. Samy Vellu said the cost was initially estimated to be around RM18 million but it has more than doubled after it was decided that all the 31 pillars need to be repaired simultaneously.
“There is no point in spending more and not being able to use it,” he said, adding that it was difficult to pinpoint who was responsible for the mistakes in such a project.
In Clause 2.6, it is stated that: "The Contractor shall take full and unequivocal responsibility for the safety of the design and for the adequacy, stability and safety of all site operations and methods of construction.
And in Clause 2.7.1, the Contractor shall be liable for any damage to the Works occassioned by him in the course of any operations carried out by him.
Under Clause 2.8.4, if there is any failure, either during the execution of the Works or during the Defect Liability Period, any remedial or other work or repair shall, in the opinion of the Project Director (JKR D-G) be urgently necessary for the safety of the Works or the public, and the Contractor fails to immediately do such work or repair, the Government may employ and pay other persons to carry out such work or repair as the PD may consider necessary; and the costs and charges properly incurred by the Government in so doing shall be recoverable from the Contractor by the Government.
The Government paid for the RM70 million from taxpayers' money and had never recovered any.
Now, we don't know how much more it will cost; and there is the imminent possibility that the structure will have to be further strengthened by another RM70 million; Oops! the costs has now increased sharply since 2006. Ask JKR and you will know.
By the way, we now have a new Works Minister (Dato' Ir Mohd Zin Bin Mohamed) and a new PWD Director-General (Datuk Seri Professor Ir Dr Judin bin Abdul Karim). Both are certified Chartered Engineers. Let's hope they will come up with an effective solution. Who is going to pay? Contractors or Government again?
Package 11 of the MRR2 which covers a 4km stretch and cost RM238.8mil to build.
MRR2 was built by Bumihiway (M) Sdn Bhd, Sukmin Sdn Bhd and Konsortium Kontraktor Melayu (Wilayah).
Picture Source: TheStar Gallery