Illawarra Highway is a short state highway in New South Wales, Australia. It connects Wollongong to the Southern Highlands and links Princes Highway and Hume Highway. It is named after the geographical area it crosses, the Illawarra region. Route Typical scenery is beautiful as it crosses the Macquarie Valley (Shellharbour) and the spectacular Macquarie Pass, with many hairpin bends and steep gradients, unsuitable for large and articulated vehicles. Trucks are instead advised to use the Mount Ousley Road (route B88), also known as Picton Road. The pass has one of the southernmost stands of Australia's sub tropical rainforest. The main towns en route are Albion Park in the Shellharbour area and Robertson and Moss Vale on the Southern Highlands. Spectacular National Parks surrounds them. Both Robertson and Moss Vale are quaint country towns with 19th-century buildings still intact, While Albion Park is an inland town of Shellharbour History The passing of the Main Roads Act of 1924 through the Parliament of New South Wales provided for the declaration of Main Roads, roads partially funded by the State government through the Main Roads Board (later the Department of Main Roads, and eventually Transport for NSW). Main Road No. 260 was declared from the intersection with Hume Highway at the Cross Roads (today Hoddles Cross Roads) west of Sutton Forest to Moss Vale (and continuing north via Bowral to the intersection with Hume Highway at Mittagong), and Main Road No. 262 was declared from Moss Vale via Robertson and Macquarie Pass to the intersection with Princes Highway at Albion Park, on the same day, 8 August 1928. The Department of Main Roads, which had succeeded the New South Wales MRB in 1932, declared Trunk Road 88 on 28 March 1951, from Cross Roads via Moss Vale and Robertson to the intersection with Princes Highway 1 mile north of Albion Park railway station; the southern end of Main Road 260 was truncated to meet Trunk Road 88 at Moss Vale, and Main Road 262 was reduced to a 2.5km stretch between Albion Park and Albion Park railway station. This was replaced with the declaration of State Highway 25 along the same route on 4 July 1962, subsuming Trunk Road 88. State Highway 22 was named Illawarra Highway on 22 February 1967. The passing of the Roads Act of 1993 through the Parliament of New South Wales updated road classifications and the way they