The mild steel grating covers to the manhole were not designed to cater for heavy traffic.Some already gave way under heavy load, and few cars also failed into the manhole without cover.

 
  • 该些遮盖地洞的铁栅的设计根本无法荷负重量的车辆,有些重型的车辆已经压坏其中的铁栅,及有些车不小心掉进没有铁栅遮盖的地洞而造成交通意外。
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