Macquarie Pass links the Southern Highland town of Robertson to the coastal town of Albion Park, descending the Illawarra Escarpment via a very narrow bitumen roadway, which has several single-lane sections and is mostly two lanes with double "no overtaking" lines. It is in the Shellharbour local government area.
This section of roadway is very steep, and contains many hairpin bends, resulting in buses and trucks needing to reverse on some of the bends. The pass is quite notorious for accidents due to its nature, and drivers and riders are required to be cautious.
After heavy rain, the Macquarie Pass can be closed due to flooding on the top half of the pass. Cars and motorcycle riders may opt to use Jamberoo Mountain Road between Robertson and Jamberoo, while trucks are advised to use Mount Ousley Road (Southern Freeway) and Picton Road as an alternative.
The road is very popular with motorcyclists on weekends and public holidays. The Shellharbour and Wingecarribee Councils and the NSW Roads and Maritime Services have therefore published a safety brochure entitled 'Motorcycling Macquarie Pass.'
Caloola Pass proposal
During the 1980s, construction of an alternative roadway was proposed —ascending the Illawarra Escarpment from Albion Park to Robertson (adjacent to Yellow Rock). The proposal was not proceeded with.
Future of Macquarie Pass
While debate continues as to whether the road should be closed to trucks (diverting all trucks bound for the Highlands and Canberra north to Mount Ousley), many people in the Illawarra and Southern Highlands favour a new multi-lane highway over the escarpment to connect the ever-expanding Shellharbour City to the Highlands and Hume Highway. However, neither state nor federal government has acted on the proposal.
- "Robertson". The Sydney Morning Herald. 10 April 2008. Archived from the original on 3 July 2013. Retrieved 6 May 2013.
- "Motorcycling Macquarie Pass" (PDF). Shellharbour City Council. 2006. Archived from the original (PDF) on 21 March 2012. Retrieved 6 May 2013.
- "2238—Caloola Pass Road". Parliament of New South Wales. 17 November 1993. Archived from the original on 6 July 2011. Retrieved 1 March 2008.