Today the roading agency is telling commuters heading to work to consider using the Western Ring Route to travel south, instead of the bridge.
At 6.15am long queues were forming back to Northcote Rd from the bridge, and travel times were more than double the normal time it took to get in.
The agency reported it was taking 40 minutes to get from Silverdale to the city over the bridge.
It was taking 50 minutes using the Western Ring Route.
A breakdown on Upper Harbour Highway heading west was causing problems just before 7am, with delays expected on the stretch of highway until it was cleared.
Meanwhile it's hoped all eight lanes will be back in use next week with plans to install the giant replacement strut scheduled to take place overnight Saturday.
Yesterday the transport agency announced all southbound lanes of the bridge would be closed from 9pm to install the permanent 22.7m strut.