UPDATE, 2.45pm: 

North-bound traffic on the Princes Hwy is queued 7km in Berry, adding about one hour to journeys. 

Meanwhile, north-bound traffic in Nowra has eased.

As at 12:45pm: 

North-bound traffic on the Princes Hwy in Berry is queued more than 6km, adding about 40 minutes to the journey.

Then again at Nowra, northbound traffic is queued 4km, adding about 20 minutes to the journey. 

Motorists are advised to allow plenty of extra travel time and exercise caution.

Visit www.livetraffic.com or call 132 701 for more traffic reports.

Got a traffic tip for us? Email ben.smyth@fairfaxmedia.com.au