Road Design
While the road design approved in 2001 was for a speed limit of 100 km/h (62 mph), the Roads and Traffic Authority applied in March 2007 to make several changes, including revising the design for a speed limit of 110 km/h (68 mph). The New South Wales Department of Planning approved those changes on 19 August 2007.
The south eastern end of the road will connect to the interchange of the F3 freeway and the Newcastle Link Road. The interchange will be significantly upgraded, with three additional bridges across the F3 north of the existing one and the provision of high speed on and off ramps from the new road towards Sydney while maintaining full grade separation.
A full interchange will be provided on John Renshaw Drive near the ends of George Booth Drive and Buchanan Road. As part of the construction of that interchange, the southern end of Buchanan Road will be relocated to connect to the existing roundabout at the end of George Booth Drive.
A full interchange will be provided on Main Road between Kurri Kurri and Heddon Greta.
Half interchanges facing towards the south east will be provided at Loxford and Allandale.
A full interchange will be constructed between Greta and Branxton, with a link to the existing highway via a new bridge across the Main Northern railway line and a link to a new roundabout on Wine Country Drive south of Branxton.
The north western end of the link road will cross over the Main Northern railway line and join onto the existing highway. When the new road is opened, the new road will become the main through road and existing highway on the northern side of Branxton will become a half interchange for turning left on and off the south east bound side of the highway.
Read more about this topic: Hunter Expressway
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