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Malfunction of Port Mann bridge gantry crane under investigation

Investigators were this week trying to establish why a gantry crane on the Port Mann Bridge project dropped a precast concrete deck segment into the Fraser River in Vancouver.

The crane was being used to install the deck sections for the north approach of the new bridge. It malfunctioned and is now leaning south, toward the cable-stay section of the bridge.

The incident happened at 8.30am last Friday and there were no injuries – the river area below had been closed to boats and marine users at the time of the incident because of the construction work happening above. The British Columbia Ministry of Transportation and Infrastructure said that the site and gantry are now secure.

The Port Mann/Highway 1 Improvement Project contractor Kiewit/Flatiron is undertaking an investigation to determine what went wrong. This investigation will also determine if this malfunction will have any impact on the construction schedule for the new Port Mann Bridge.

The organisation responsible for enforcing health and safety in British Columbia WorkSafeBC will also conduct an investigation.

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