and Orange Grove Road were widened and connected to each other to form a continuous road. The first of these to be completed was between Harris Road and Freame Street railway underpass at Wentworthville. With the completion of the section between Great Western Highway and Jersey Road, State Highway 13 was altered to use the new route and also named Cumberland Highway on 26 August 1988, from the intersection with Pacific Highway in Wahroonga via Parramatta to the intersection with Hume Highway at Liverpool. State Route 77 was allocated to the entire length of the highway, subsuming State Route 55 between Parramatta and Wahroonga; the northern end of State Route 55 was truncated to meet State Route 77 at Pennant Hills Road. Metroad 7 replaced State Route 77 in June 1993 and the highway was designated by the Federal Government as an interim National Highway in 1994 until the completion of Westlink M7; Metroad 7 originally continued south through Liverpool and along Heathcote Road to the intersection with Princes Highway (then Metroad 1, now route A1) at , but was truncated back to Liverpool in 1999. The passing of the Roads Act of 1993 through the Parliament of New South Wales updated road classifications and the way they could be declared within New South Wales. Under this act, Cumberland Highway today retains its declaration as Highway 13, from the intersection with Pacific Highway in Wahroonga via Parramatta to the intersection with Hume Highway at Liverpool. Since 1994, various parts of Cumberland Highway have been upgraded, including the widening of Pennant Hills Road. Post-Westlink M7 and NorthConnex With the opening of the Westlink M7 motorway in December 2005, the Metroad 7 route south of M2 Hills Motorway was decommissioned and rerouted onto the Westlink M7, leaving only the section north of M2 Hills Motorway along Pennant Hills Road designated as Metroad 7; Metroad 6 was extended northwards from Carlingford along Pennant Hills Road to meet M2 Hills Motorway at the same time, leaving the rest of Cumberland Highway west of Carlingford without a route number. With the conversion to the newer alphanumeric system in 2013, Cumberland Highway was re-designated part of route A28, replacing the last remnant of Metroads 6 and 7 along Pennant Hills Road. NorthConnex, opened in October 2020, links the M2 Hills Motorway at with the Pacific Highway and Pacific Motorway at Wahroonga via a motorway tunnel that