Complaints about construction noise blamed for delays to work on MTR's Kwun Tong line extension

Complaints about construction noise and poor ground conditions have been blamed for a slowdown in work on the MTR's Kwun Tong line extension, which risks missing its target completion date of the middle of next year.

In a report presented for a committee meeting at Kowloon City District Council yesterday, the MTR Corporation said excavation to build a tunnel linking two concourses of the future Whampoa station had fallen behind schedule.

About 70 per cent of the work should have been done by the end of April, but only 54 per cent was completed.

A major reason was restrictions on the time of day work could be done due to complaints about noise from nearby residents. The contractor had obtained a round-the-clock work permit from the Environmental Protection Department valid for two months from mid-January to mid-March, but after the complaints, the MTR shortened work time to 16 hours a day - between 7am and 11pm - from mid-February onwards, "for the good of the community".

"Variable ground conditions" presented another challenge for engineers, the report said.

"Currently, the project is still targeted for completion by mid-2016. The construction team is making every possible effort to speed up the work," a spokeswoman for the MTR said.