Lining at night was essential to minimise traf? c disruption on the Harbour Bridge With over 85,000 vehicles per day using the Sydney Harbour Bridge, avoiding traf? c delays is a high priority for the Roads and Traf? c Authority. Preventative maintenance is vital – including lining of 60 year old stormwater pipes. The problem Although still structurally sound, it was decided to line the stormwater pipelines on the southern approaches to the

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