Pattullo Bridge overnight closures in effect until Nov. 4

Motorists can expect some delays on the Pattullo Bridge over the next few weeks.

The closures will apply to northbound traffic five nights a week.

The bridge will be closed to install seismic activity and warning sensors, a wind warning system, fibre-optic cables and advanced warning lights and signs.

The upgrades will allow officials to block entry to the bridge in the event of an earthquake or heavy winds.

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The bridge will be closed northbound Sunday to Thursday from 10 p.m. to 5 a.m. until Nov. 4. The bridge will not be closed on Friday and Saturday nights.

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Motorists are encouraged to use the Port Mann Bridge or Alex Fraser Bridge as an alternate route.

A $1.3-billion replacement of the bridge is scheduled to be completed by 2023.

Once the new bridge opens, the current bridge will be removed.