A Roads and Maritime Services spokesman said traffic tests would be undertaken to improve the reliability of the bridge opening system and to train bridge operators.

The bridge has been subject to repeated failures, causing long delays.

“Last year, a full mechanical and electrical upgrade of the bridge was carried out, with ongoing upgrades completed in the past six months to improve safety,” the RMS spokesman said.

“Due to the ongoing upgrades, bridge operators will now have one night of training a month to ensure any incidents experienced with the lift system can be fixed quickly, reducing delays for motorists and marine traffic.

“The first night of training and bridge testing will be carried out between 8pm and midnight on Tuesday 4 April, weather permitting.

“Motorists are advised to plan their journey, with delays of up to 15 minutes expected as testing takes place.

“Motorists are advised to drive to the conditions and follow the directions of signs and traffic control.

“Roads and Maritime Services thanks the community for its patience while work is carried out.”

For the latest traffic updates call 132 701, visit livetraffic.com or download the Live Traffic NSW

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