Chapter 4 - The Collapse by FYP - The Collapse of Nicoll Highway

Parties Mentioned:

FYP — 2015-02-10 13:36:04 UTC

Andy Wong, NLCJV’s Senior Engineer
Shimizu, NLCJV's Deputy Project Manager
Liew Teck Boon, NLCJV's Construction Manager
Heng Yeow Pheow, foreman of Kori (one of the deceased)
Nallusamy Ramadoss, Kori Construction Site Supervisor
Arumaithurai Ahilan , NLCJV’s Assistant Geotechnical Engineer
Hiap Shing Construction: sub-contractors of NLCJV responsible for the excavation works
Kori Construction: sub-contractors of NLCJV responsible for the installation of strutting system

Sequence of critical events leading up to the Collapse on 20 April, 3.30pm:

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FYP — 2015-02-10 13:36:50 UTC

1.30pm - 3.10pm

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10.00am - 2.00pm

FYP — 2015-02-10 13:37:56 UTC

FYP — 2015-02-10 13:42:14 UTC

FYP — 2015-02-10 13:42:26 UTC

3.30pm

FYP — 2015-02-10 13:46:52 UTC

FYP — 2015-02-10 13:47:43 UTC

FYP — 2015-02-10 13:47:59 UTC

FYP — 2015-02-10 13:48:14 UTC

FYP — 2015-02-10 13:48:27 UTC

FYP — 2015-02-10 13:48:47 UTC

Effects of Collapse

FYP — 2015-02-10 13:51:28 UTC

The destructive force of the collapse swept through the ground level, pulling down site officers, crawler cranes, a truck, a cement mixer and other equipment on the surface of the worksite. The collapse propagated from East to West.

FYP — 2015-03-01 08:09:25 UTC