South Road, Adelaide
|(Main) South Road
|South Road Underpass beneath Anzac Highway|
|Length||115 km (71 mi)|
|North end|| Salisbury Highway
Port River Expressway, Wingfield, Adelaide
|South end|| Cape Jervis-Noarlunga Road, Cape Jervis, South Australia
via Ferry to Kangaroo Island
|Major suburbs||Croydon, Hindmarsh, Mile End, Reynella, Morphett Vale, Old Noarlunga, Aldinga, Sellicks Hill, Yankalilla|
South Road (route A13, B23) is a major north–south conduit in Adelaide and Fleurieu Peninsula in South Australia. Also known as Main South Road, it is one of Adelaide's most important arterial and bypass roads.
South Road of today was until the 1970s known by a string of names: Shillabeer Ave. (north of Torrens Road), Govt. Rd. (between Torrens Rd. and Port Rd.), John St. (Port Rd. to Grange Rd.), Taylors Rd. (between Grange Rd. and Henley Beach Rd.), Fisher Tce. (Henley Beach Rd. to Anzac Hwy.), and South Rd. from Anzac Hwy. southwards.
From Anzac Hwy, South Road continues north as a western bypass of the city across many arterials, the major ones being Sir Donald Bradman Drive, Port Road, Torrens Road, Regency Road and Grand Junction Road, to the junction with the Port River Expressway and the Salisbury Highway. Until the Port River Expressway opened in 2005, the sections of South Road and Salisbury Highway between Grand Junction Road and Port Wakefield Road were known as the South Road Extension, built in the early 1990s.
To the south of Anzac Hwy, the name changes to Main South Road at the intersection of Ayliffes and Shepherds Hill Roads at Clovelly Park, and continues through Seaford (where the Victor Harbor road branches off) and runs parallel to the coastline of Gulf St Vincent until Normanville where it is known as Willis Drive for 2 km then continues to Cape Jervis at its southern tip. The town of Old Noarlunga, South Australia was bypassed in 1972, and Old Reynella in 1964. The Southern Expressway (M2) runs roughly parallel to Main South Road for 18 km between Darlington and Noarlunga and serves to reduce traffic congestion. Main South Road and the Southern Expressway have 3 different intersections along the length of the roads.
Congestion and upgrades
South Road suffers from traffic congestion due to its importance as one of Adelaide's main arterial roads and bypasses. Traffic has also increased in line with the growth and development of Adelaide's southern suburbs.
In November 2005, the Royal Automobile Association (RAA) released its recommendations to the South Australian government in regards to the road network. South Road was found to be the poorest road in the state, registering a 2/10 on the RAA's scale. The recommendations given included $6 billion of funds to upgrade the roads of South Australia – with $1.5–2 billion to be spent on South Road alone. The RAA's plan for the road included a 6 km tunnel from Port Road all the way to the Anzac Highway underpass and over/underpasses at six other major intersections and two rail crossings. 
On 18 August 2007, the Prime Minister of Australia John Howard announced that South Road was to be included in the AusLink National Road Network, and also pledged $1 billion in funding for the project between 2007 and 2020.
In October 2009, both the Premier of South Australia and the Prime Minister of Australia released plans for the South Road Superway- a 3–4 km section of elevated freeway running from the Port River Expressway to the intersection of Regency Road at a cost of $800 million. The project started in 2010 and was completed in early 2014. The elevated part provides separation at Grand Junction Road, Cormack Road, and the Dry Creek-Port Adelaide railway line.
Two further sections were identified and funded for upgrade following the 2013 Australian federal election. The first of these was the Darlington Upgrade addressing the section from the northern end of the Southern Expressway to provide a free-flowing route under the intersections with Flinders Drive and Sturt Road to the Ayliffes Road intersection. The Torrens Road to River Torrens project addresses the major intersections with Grange and Port Roads, the Outer Harbor railway crossing, and several minor road intersections. Both of these upgrades involve land acquisition to widen the road corridor, surface grade carriage ways on the edges, and a lowered central roadway carrying the free-flow traffic below the crossing routes. The Torrens to Torrens project was started in 2015, and is expected to be completed by the end of 2018.
Major intersections (north–south)
|Port Adelaide Enfield||Wingfield||0.0||0.0||Salisbury Highway – Port Wakefield Road National Route A1 & Sturt Highway National Route A20 / Port River Expressway State Route A9 – Port Adelaide||South Road at ground level; North-South Motorway elevated|
|0.7||0.4||Dry Creek-Port Adelaide railway line|
|1.9||1.2||Grand Junction Road|
|Regency Park||2.8||1.7||Days Road|
|3.4||2.1||North-South Motorway||North-South Motorway is elevated from here to northern end, along same alignment as South Road at ground level|
|Charles Sturt||6.3||3.9||Torrens Road|
|7.6||4.7||Outer Harbor railway line|
|8.1||5.0||Manton Street (east), Grange Road (west)|
|Charles Sturt, West Torrens||9.1||5.7||River Torrens|
|West Torrens||10.4||6.5||Henley Beach Road|
|11.3||7.0||Sir Donald Bradman Drive – Adelaide Airport|
|West Torrens, Unley||13.7||8.5||Anzac Highway||Diamond interchange with South road free-flowing underneath|
|West Torrens, Marion, Unley||14.3||8.9||Glenelg Tram|||
|Unley, Mitcham, Marion||15.3||9.5||Cross Road, Seaford railway line||Emerson Crossing Diamond interchange with South Road free flowing on a bridge over the intersection, with the railway line diagonally through the middle|
|Mitcham, Marion||18.7||11.6||Daws Road|
|20.2||12.6||Ayliffes Road, Shepherds Hill Road||both on east side|
|21.0||13.0||Sturt Road – Flinders University||grade separation proposed |
|Bedford Park||21.4||13.3||Flinders Drive – Flinders Medical Centre||east side|
|Mitcham, Onkaparinga, Marion||22.0||13.7||Sturt River|
|Onkaparinga, Marion||22.4||13.9||Flagstaff Road / Marion Road|
|O'Halloran Hill||25.8||16.0||Majors Road|
|26.5||16.5||Chandlers Hill Road|
|29.2||18.1||Panalatinga Road / Southern Expressway|
|Onkaparinga||32.5||20.2||Pimpala Road / Sherriffs Road|
|Morphett Vale||33.9||21.1||Bains Road / O'Sullivan Beach Road|
|Morphett Vale||35.0||21.7||Wheatsheaf Road / Flaxmill Road|
|36.2||22.5||Doctors Road / Beach Road|
|37.4||23.2||Pennys Hill Road|
|Old Noarlunga||42.3||26.3||Victor Harbor Road –||Continues as Main South Road to Cape Jervis. No right turn from Main South Road to Victor Harbor Road|
|Yankalilla||Myponga||68||42||Pages Flat Road –|
|Yankalilla||82||51||Inman Valley Road –|
|Delamere||105||65||Range Road –|
- Sands and McDougall's Directory, 1962.
- Old Noarlunga
- Local Studies. Former Cricketers-Retrieved 24/01/2012
- Media Releases
- "North-South Corridor: Torrens Road to River Torrens". Department of Planning, Transport and Infrastructure, Government of South Australia. 5 August 2015. 145594. Retrieved 8 August 2015.
- "T2T". T2T Alliance. 31 July 2015. Retrieved 8 August 2015.
- "Property Location Browser". Department of Planning, Transport and Infrastructure, Government of South Australia. Retrieved 21 May 2015.
- Google (21 May 2015). "South Road, Adelaide" (Map). Google Maps. Google. Retrieved 21 May 2015.
- "Glenelg Tram Overpass". South Australian Department for Transport, Energy and Infrastructure. 2008-06-19. Retrieved 2009-03-28.
- "BUDGET: Transport infrastructure investment". Premier & Ministers of South Australia. 2006-09-21. Retrieved 2009-03-28.