complaining that the F3 Freeway had its toll dropped in 1988, which was at the time intended to be dropped as its loans had been fully paid off unlike those of the F6. After much pressure the toll for the F6 freeway was removed on 30 July 1995 as the loans had been repaid. Remnants of the tollbooths could initially be seen at the old toll plaza at Waterfall, such as faint markings and a set of warning lights in the southbound direction for the toll plaza. These remnants have since been removed. However, , the widened carriageways for the toll booths can still be seen at . To complement the tollway, the dual carriageways of the Princes Highway from Waterfall north to Loftus and the Sutherland bypass were constructed and opened to traffic on 16 September 1975. Mount Ousley Road section The section between Bulli Tops and Gwynneville was previously named as part of Mount Ousley Road, and is still often referred to as such. Mount Ousley Road was built in 1942 as a defence route, involving the reconstruction of part of a 19th century route from Bulli Tops to the Picton-Mt Keira road (the southern section not incorporated into the defence route is Clive Bissell Drive), and the construction of a new section of road to descend the escarpment and terminate at the Princes Highway at North Wollongong. (The easternmost 3.5 km of Picton Road, from Mount Keira Road to Mount Ousley Road, was also constructed as part of this project.) From the 1960s to the 1980s Mount Ousley Road was gradually upgraded, initially by the construction of overtaking lanes, then the staged extension of the overtaking lanes to ultimately provide continuous two lanes in each direction, and a third lane northbound from the foot of Mount Ousley to Clive Bissell Drive and a third southbound lane from Clive Bissell Drive to New Mount Pleasant Road. This was followed by deviations to replace sharp curves on steep gradients on the northern approach to Bellambi Creek and both approaches to Cataract Creek. A continuous New Jersey median was subsequently installed in stages. Also during the 1980s extensive truck management measures were installed on the long, steep descent from Clive Bissell Drive into Wollongong, following a number of fatal truck crashes on this section. The Mount Ousley Road section of the Princes Motorway is sometimes not considered part of the