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List of road routes in South Australia#A5

{{Short description|none}}

{{Use dmy dates|date=July 2015}}

{{Use Australian English|date=July 2015}}

{{ref improve|date=July 2023}}

File:SA in Australia map.png

Road routes in South Australia assist drivers navigating roads in urban, rural, and scenic areas of the state. Today, all numbered routes in the state are allocated a letter (M, A or B) in addition to a one, two or three digit number, denoting different levels of significance. The route system includes officially designated highways, urban freeways and arterial roads, and other important cross-state roads that have not been declared highways.

History

Route numbers have been allocated to South Australia's roads since 1955, with the introduction of National Routes across all states and territories in Australia, symbolised by a white shield with black writing; National Route 1 ('Highway 1') was one of the best-known numbered national routes, due to its fame for circumnavigating the continent.

In 1974, the National Highway network was defined, which allowed some existing National Routes to be upgraded to National Highways. These were marked with the same shield design as the National Routes, except for their gold-on-green colouring and the word NATIONAL added across the top. Unlike many other states, South Australia never adopted State Routes, although it allowed two Victorian rural State Routes to cross the border and terminate in locations within 20 km of it when they were rolled out there in 1985.

In 1998, the state replaced its system of National Routes and National Highways with an alphanumeric route numbering system. Many existing numbered routes were allocated a letter (M, A or B) in addition to its number, with 'M' routes denoting freeways, 'A' routes denoting routes of state significance, and 'B' routes denoting routes of local significance. Instead of shields, route numbers are displayed as yellow text on green rectangular backgrounds, and has now become the sole route numbering system in the state. The changeover to alphanumeric routes was carried out from 1998 either by removing old "shield" coverplates installed on newer signs, or installing new alphanumeric coverplates on old shielded signs, adopting the same design as Victoria (which adopted its alphanumeric system a year previous). Trailblazers were introduced with alphanumeric routes in Adelaide's metropolitan area and the tourist areas of Victor Harbor and the Barossa Valley in 1998,{{cite web|title=Metropolitan Publications|publisher=Department for Transport, Urban Planning and the Arts, Metropolitan Region|archiveurl=https://web.archive.org/web/20000421012617/http://www.transport.sa.gov.au/metro/publications.html|archivedate=21 April 2000|quote=Trailblazers is a new route numbering system that guides both local and visiting road users through unfamiliar areas by the most efficient routes. This brochure includes a map illustrating the 19 designated routes in the metropolitan area extending to main tourism locations of Victor Harbor and the Barossa Valley. The new signs display the route number, the name of the road being travelled on, major crossroads being approached and destinations along each leg.|url=http://www.transport.sa.gov.au/metro/publications.html}}{{cite web|title=Where the new routes are|publisher=Department for Transport, Urban Planning and the Arts, Transport SA, Metropolitan Region|archiveurl=https://web.archive.org/web/20020910143714/http://transport.sa.gov.au/metro/pics2/bigmap.jpg|archivedate=10 September 2002|url=http://transport.sa.gov.au/metro/pics2/bigmap.jpg}} with allocations extended to cover country areas in 1999.{{cite journal |author=The Hon. Diana Laidlaw |journal=Hansard |date=24 June 1999 |series=House of Assembly - Estimates Committee B |title=Address to Estimates Committee B |url=http://hansard.parliament.sa.gov.au/wp/EB240699.PDF |accessdate=12 September 2012 |page=102 |publisher=Parliament of South Australia |quote=In terms of each class of output to be delivered by Transport SA in the year 1999-2000, the highlights are as follows: ... extension of the route numbering system across the rural arterial network ... |archive-url=https://web.archive.org/web/20140714202859/http://hansard.parliament.sa.gov.au/wp/EB240699.PDF |archive-date=14 July 2014 |url-status=dead }} Former National Highways still retained their shield design (including NATIONAL markings) after conversion, but were modified in 2017 to remove them, bringing their design in line with the rest of the state.

Alphanumeric Routes

All alphanumeric routes listed here are derived from the Government of South Australia's Location SA service.{{cite web |url=https://location.sa.gov.au/viewer/?map=hybrid&x=136.19383&y=-32.61774&z=7&uids=135 |title=Location SA Map viewer with road route layers |publisher=Government of South Australia |accessdate=26 June 2022}}

=M routes=

Roads allocated an M route are usually at least dual-carriageway motorways or expressways, with at least two lanes in each direction. These roads keep traffic moving and are likely to have no traffic lights and higher speed limits.{{cite web |date=25 March 2020 |title=A simpler way to navigate |url=https://dit.sa.gov.au/a_simpler_way_to_navigate |url-status=dead |archive-url=https://web.archive.org/web/20221113201256/https://dit.sa.gov.au/a_simpler_way_to_navigate |archive-date=13 November 2022 |accessdate=26 June 2022 |website=Government of South Australia, Department for Infrastructure and Transport |publisher=Government of South Australia}}

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="vertical-align:top; white-space:nowrap;"|{{anchor|M1}}{{AUshield|SA|M1|size=x30px}}
M1

|South Eastern Freeway

|Glen Osmond

|{{plainlist|

|Murray Bridge

|{{convert|69|km|mi|abbr=on|0}}

||Part of Highway 1:
– western end re-aligned through Eagle on the Hill from Mount Barker Road to current alignment when freeway extension through the Heysen Tunnels opened in 2000
– continues north west as {{AUshield|SA|A1}} along Glen Osmond Road beyond Adelaide
– continues east as {{AUshield|SA|A1}} along Princes Highway to Tailem Bend
– allocated {{AUshield|N|M1}} in 1998, progressively being replaced by {{AUshield|SA|M1}} from 2017

rowspan="4" style="vertical-align:top; white-space:nowrap;"|{{anchor|M2}}{{AUshield|SA|M2|size=x30px}}
M2

|Northern Expressway

|rowspan="3"|Gawler

|rowspan="3"|{{plainlist|

|rowspan="3"|Hindmarsh

|rowspan="3"|{{convert|51|km|mi|abbr=on|0}}

|Allocated in 2016 (replacing {{AUshield|N|M20}})

Northern Connector

|Allocated upon opening in 2020

North–South Motorway

| – allocated {{AUshield|N|M2}} through Wingfield (replacing {{AUshield|N|A13}}) when South Road Superway opened in 2014, progressively being replaced by {{AUshield|SA|M2}} from 2017
– extended south to Hindmarsh (replacing {{AUshield|SA|A2}}) when Torrens to Torrens section opened in 2018
– to be extended further south eventually to Southern Expressway as further stages of the North–South Motorway are completed
– continues south as {{AUshield|SA|A2}} along South Road to Southern Expressway at St Marys

Southern Expressway

|St Marys

|{{plainlist|

|Noarlunga Downs

|{{convert|21|km|mi|abbr=on|0}}

| – southern end extended from Reynella to Noarlunga Downs when second stage opened in 2001
– northern end extended from Darlington to St Marys when Darlington bypass opened in 2020
– to be extended further north eventually to North–South Motorway as further stages are completed
– continues north as {{AUshield|SA|A2}} along South Road to North–South Motorway at Hindmarsh

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NM20}}{{AUshield|N|M20|size=x30px}}
National Highway M20

|Northern Expressway

|Virginia

|{{plainlist|

|Gawler

|{{convert|22|km|mi|abbr=on|0}}

|Allocated upon opening in 2010, replaced by {{AUshield|SA|M2

} when Northern Connector commenced construction in 2016

|-

| colspan="7" style="text-align:center; background:#f2f2f2;" |{{legend|#d3d3d3|Decommissioned or unsigned route}}

|}

=A routes=

Roads allocated an A route are main or arterial routes providing a high standard of driving conditions both across single- or dual-carriageway roads, linking to and from M roads and provide access to major towns and places of interest across metro and regional SA.

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

rowspan="4" style="vertical-align:top; white-space:nowrap;"|{{anchor|A1}}{{AUshield|SA|A1|size=x30px}}
A1

|{{plainlist|

|SA/WA border

|{{plainlist|

|Medindie

|{{convert|1248|km|mi|abbr=on|0}}

|Part of Highway 1:
– continues west as {{AUshield|NH|1}} along Eyre Highway into WA eventually to Norseman
– discontinuous across the Adelaide city centre, partially {{AUshield|SA|R1}}
– allocated {{AUshield|N|A1}} in 1998, progressively being replaced by {{AUshield|SA|A1}} from 2017

{{plainlist|

|Eastwood

|Frewville

|Glen Osmond

|{{convert|3.3|km|mi|abbr=on|0}}

| – discontinuous across the Adelaide city centre, partially {{AUshield|SA|R1}}
– eastern end along Mount Barker Road terminating in Crafers truncated to current alignment when South Eastern Freeway extension through the Heysen Tunnels opened in 2000
– continues east as {{AUshield|SA|M1}} along South Eastern Freeway to Murray Bridge
– allocated {{AUshield|N|A1}} in 1998, progressively being replaced by {{AUshield|SA|A1}} from 2017

Princes Highway

|Murray Bridge

|Swanport Bridge

|Tailem Bend

|{{convert|22|km|mi|abbr=on|0}}

| – continues west as {{AUshield|SA|M1}} along South Eastern Freeway to Glen Osmond
– continues south as {{AUshield|SA|B1}} along Princes Highway to Mount Gambier
– allocated {{AUshield|N|A1}} in 1998, progressively being replaced by {{AUshield|SA|A1}} from 2017

Princes Highway

|Mount Gambier

|

|SA/Vic border

|{{convert|18|km|mi|abbr=on|0}}

| – continues west as {{AUshield|SA|B1}} along Princes Highway to Tailem Bend
– continues east as {{AUshield|VIC|A1}} along Princes Highway into Victoria eventually to Geelong

style="vertical-align:top; white-space:nowrap;"|{{anchor|A2}}{{AUshield|SA|A2|size=x30px}}
A2

|South Road

|Hindmarsh

|{{plainlist|

|St Marys

|{{convert|11|km|mi|abbr=on|0}}

| – allocated from Regency Park to Darlington (replacing {{AUshield|SA|A13}}) when South Road Superway opened in 2014
– northern end truncated to Hindmarsh (replaced by {{AUshield|SA|M2}}) when Torrens to Torrens section of North–South Motorway opened in 2018
– southern end truncated to St Marys (replaced by {{AUshield|SA|M2}}) when Darlington bypass of Southern Expressway opened in 2020
– continues north as {{AUshield|SA|M2}} along North–South Motorway to Gawler
– continues south as {{AUshield|SA|M2}} along Southern Expressway to Noarlunga Downs

style="vertical-align:top; white-space:nowrap;"|{{anchor|A3}}{{AUshield|SA|A3|size=x30px}}
A3

|Cross Road

|Plympton

|Unley Park

|Glen Osmond

|{{convert|9.5|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|A5}}{{AUshield|SA|A5|size=x30px}}
A5

|Anzac Highway

|Keswick

|Plympton

|Glenelg

|{{convert|13.8|km|mi|abbr=on|0}}

|Northern end truncated from Adelaide to Keswick when {{AUshield|SA|R1}} City Ring Route re-aligned in 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A6}}{{AUshield|SA|A6|size=x30px}}
A6

|{{plainlist|

|Mile End

|Brooklyn Park

|West Beach

|{{convert|6.9|km|mi|abbr=on|0}}

|Eastern end truncated from Adelaide to Mile End when {{AUshield|SA|R1}} City Ring Route re-aligned in 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A7}}{{AUshield|SA|A7|size=x30px}}
A7

|{{plainlist|

|Hindmarsh

|{{plainlist|

|Port Adelaide

|{{convert|9.9|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|A8}}{{AUshield|SA|A8|size=x30px}}
A8

|Dukes Highway

|Tailem Bend

|{{plainlist|

|SA/Vic border

|{{convert|192|km|mi|abbr=on|0}}

| – continues east as {{AUshield|VIC|A8}} along Western Highway into Victoria eventually to Beaufort
– concurrency with {{AUshield|SA|B57}} along Dukes Highway from Lowan Vale to Bordertown
– allocated {{AUshield|N|A8}} in 1998, progressively being replaced by {{AUshield|SA|A8}} from 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A9}}{{AUshield|SA|A9|size=x30px}}
A9

|{{plainlist|

|Port Adelaide

|{{plainlist|

|Elizabeth Vale

|{{convert|20.9|km|mi|abbr=on|0}}

|Eastern end extended along Salisbury Highway and John Rice Avenue from Dry Creek to Elizabeth Vale (replacing {{AUshield|N|A13}}/{{AUshield|SA|A13}}) when South Road Superway opened in 2014

style="vertical-align:top; white-space:nowrap;"|{{anchor|A10}}{{AUshield|SA|A10|size=x30px}}
A10

|{{plainlist|

|Gilberton

|{{plainlist|

|Houghton

|{{convert|19.3|km|mi|abbr=on|0}}

|Continues east as {{AUshield|SA|B10}} along North East Road to Nurioopta

style="vertical-align:top; white-space:nowrap;"|{{anchor|A11}}{{AUshield|SA|A11|size=x30px}}
A11

|{{plainlist|

|Kent Town

|{{plainlist|

|Salisbury Heights

|{{convert|25.1|km|mi|abbr=on|0}}

|Northern end re-aligned from Lower North East Road terminating in Houghton (replaced by {{AUshield|SA|A16}}) to current alignment in 2021

style="vertical-align:top; white-space:nowrap;"|{{anchor|A13}}{{AUshield|SA|A13|size=x30px}}
A13

|{{plainlist|

|Darlington

|{{plainlist|

|Victor Harbor

|{{convert|67.6|km|mi|abbr=on|0}}

| – allocation along South Road, Salisbury Highway and John Rice Avenue terminating in Elizabeth Vale truncated to current alignment (replaced by {{AUshield|SA|M2}}/{{AUshield|SA|A2}} and {{AUshield|SA|A9}}) when South Road Superway opened in 2014
– concurrency with {{AUshield|SA|B34}} along Victor Harbor Road through Willunga Hill
– allocated {{AUshield|N|A13}} along South Road through Wingfield in 1998, replaced by {{AUshield|N|M2}} in 2014, progressively being replaced by {{AUshield|SA|M2}} from 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A14}}{{AUshield|SA|A14|size=x30px}}
A14

|{{plainlist|

|Beverley

|{{plainlist|

|Darlington

|{{convert|15.3|km|mi|abbr=on|0}}

|

rowspan="2" style="vertical-align:top; white-space:nowrap;"|{{anchor|A15}}{{AUshield|SA|A15|size=x30px}}
A15

|{{plainlist|

}}

|rowspan="2"|Alberton

|rowspan="2"|{{plainlist|

|rowspan="2"|Maslin Beach

|rowspan="2"|{{convert|45.3|km|mi|abbr=on|0}}

|

{{plainlist|

  • Gray Street
  • Saltfleet Street
  • Commercial Road
  • Maslin Beach Road}}

|Southern end extended from Hallett Cove to Maslin Beach in 2021

rowspan="3" style="vertical-align:top; white-space:nowrap;"|{{anchor|A16}}{{AUshield|SA|A16|size=x30px}}
A16

|{{plainlist|

|rowspan="3"|Outer Harbor

|rowspan="3"|{{plainlist|

|rowspan="3"|Houghton

|rowspan="3"|{{convert|37.5|km|mi|abbr=on|0}}

|

Grand Junction Road

|Allocated {{AUshield|N|A16}} (from Regency Park to Northfield) in 1998, progressively being replaced by {{AUshield|SA|A16}} from 2017

Lower North East Road

|Eastern end extended along Lower North East Road from Hope Valley to Houghton (replacing {{AUshield|SA|A11}}) in 2021

style="vertical-align:top; white-space:nowrap;"|{{anchor|A17}}{{AUshield|SA|A17|size=x30px}}
A17

|{{plainlist|

|Northfield

|Payneham

|Glen Osmond

|{{convert|13.7|km|mi|abbr=on|0}}

|Allocated {{AUshield|N|A17}} in 1998, progressively being replaced by {{AUshield|SA|A17}} from 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A18}}{{AUshield|SA|A18|size=x30px}}
A18

|{{plainlist|

|Paralowie

|Parafield

|Modbury

|{{convert|12.5|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|A20}}{{AUshield|SA|A20|size=x30px}}
A20

|{{plainlist|

|Gepps Cross

|{{plainlist|

|SA/Vic border

|{{convert|267|km|mi|abbr=on|0}}

| – continues east as {{AUshield|VIC|A20}} along Sturt Highway into Victoria through Mildura, and into New South Wales eventually to Tarcutta
– allocated {{AUshield|N|A20}} in 1998, progressively being replaced by {{AUshield|SA|A20}} from 2017
– western end along Main North Road terminating at Gepps Cross truncated to Gawler (replaced by {{AUshield|SA|A52}}) when Northern Expressway opened in 2010, reverted to {{AUshield|SA|A20}} in 2017

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|A21}}{{AUshield|SA|A21|size=x30px}}
A21

|{{plainlist|

|Adelaide

|North Adelaide

|Adelaide

|{{convert|15.6|km|mi|abbr=on|0}}

|Former City Ring Route, replaced by {{AUshield|SA|R1}} in 2017, listed clockwise from the western corner of Adelaide city centre

style="vertical-align:top; white-space:nowrap;"|{{anchor|A22}}{{AUshield|SA|A22|size=x30px}}
A22

|{{plainlist|

|Gepps Cross

|Kilburn

|Ovingham

|{{convert|7.7|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|A32}}{{AUshield|SA|A32|size=x30px}}
A32

|Barrier Highway

|Giles Corner

|{{plainlist|

|SA/NSW border

|{{convert|377|km|mi|0|abbr=on}}

| – continues east as {{AUshield|NSW|A32}} along Barrier Highway into New South Wales to Nyngan
– concurrency with {{AUshield|SA|B64}} along Barrier Highway through Burra

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|A52}}{{AUshield|SA|A52|size=x30px}}
A52

|Main North Road

|Gepps Cross

|{{plainlist|

|Gawler

|{{convert|32|km|mi|abbr=on|0}}

|Allocated when Northern Expressway opened (replacing {{AUshield|NH|A20}}) in 2010, reverted to {{AUshield|SA|A20}} in 2017

style="vertical-align:top; white-space:nowrap;"|{{anchor|A66}}{{AUshield|SA|A66|size=x30px}}
A66

|Riddoch Highway

|Keith

|{{plainlist|

|Mount Gambier

|{{convert|210|km|mi|0|abbr=on}}

|Continues south as {{AUshield|SA|B66}} along Riddoch Highway to Port MacDonnell

style="vertical-align:top; white-space:nowrap;"|{{anchor|A87}}{{AUshield|SA|A87|size=x30px}}
A87

|Stuart Highway

|SA/NT border

|{{plainlist|

|Port Augusta West

|{{convert|928|km|mi|abbr=on|0}}

| – continues north as {{AUshield|NT|A87}} along Stuart Highway into NT eventually to Daly Waters
– allocated {{AUshield|N|A87}} in 1998, progressively being replaced by {{AUshield|SA|A87}} from 2017

colspan="7" style="text-align:center; background:#f2f2f2;" |{{legend|#d3d3d3|Decommissioned or unsigned route}}

=B routes=

Roads allocated a B route are secondary or local arterial roads, These roads link to and from A and M roads and provide access to places of interest across metro and regional SA.

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="vertical-align:top; white-space:nowrap;"|{{anchor|B1}}{{AUshield|SA|B1|size=x30px}}
B1

|Princes Highway

|Tailem Bend

|{{Plainlist|

|Mount Gambier

|{{convert|350|km|mi|abbr=on|0}}

|Part of Highway 1:
– continues north as {{AUshield|SA|A1}} along Princes Highway to Murray Bridge
– continues east as {{AUshield|SA|A1}} along Princes Highway into Victoria eventually to Geelong

style="vertical-align:top; white-space:nowrap;"|{{anchor|B10}}{{AUshield|SA|B10|size=x30px}}
B10

|{{Plainlist|

|Houghton

|{{plainlist|

|Nurioopta

|{{convert|73|km|mi|abbr=on|0}}

| – continues west as {{AUshield|SA|A10}} along North East Road to Adelaide
– concurrencies with: {{AUshield|SA|B31}} along North East Road through Chain of Ponds; {{AUshield|SA|B34}} along Torrens Valley Road through Birdwood; {{AUshield|SA|B35}} along Torrens Valley Road through Mount Pleasant

style="vertical-align:top; white-space:nowrap;"|{{anchor|B12}}{{AUshield|SA|B12|size=x30px}}
B12

|Mallee Highway

|Tailem Bend

|{{Plainlist|

|SA/Vic border

|{{convert|145|km|mi|abbr=on|0}}

| – continues east as {{AUshield|VIC|B12}} along Mallee Highway into Victoria eventually to Piangil
– concurrency with {{AUshield|SA|B57}} along Mallee Highway through Pinnaroo

style="vertical-align:top; white-space:nowrap;"|{{anchor|B19}}{{AUshield|SA|B19|size=x30px}}
B19

|{{Plainlist|

|Gawler

|Lyndoch

|Nuriootpa

|{{convert|39|km|mi|abbr=on|0}}

|

rowspan="2" style="vertical-align:top; white-space:nowrap;"|{{anchor|B23}}{{AUshield|SA|B23|size=x30px}}
B23

|Main South Road

||Old Noarlunga

|{{Plainlist|

|Cape Jervis

|{{convert|75|km|mi|abbr=on|0}}

|Route continues west over Backstairs Passage to Hog Bay Road on Kangaroo Island

{{Plainlist|

|Penneshaw

|Pelican Lagoon

|Kingscote

|{{convert|60|km|mi|abbr=on|0}}

|Route continues east over Backstairs Passage to Main South Road on the South Australian mainland

style="vertical-align:top; white-space:nowrap;"|{{anchor|B26}}{{AUshield|SA|B26|size=x30px}}
B26

|Greenhill Road

|Glenside

|Uraidla

|Balhannah

|{{convert|24|km|mi|abbr=on|0}}

| Allocated in 2019

style="vertical-align:top; white-space:nowrap;"|{{anchor|B27}}{{AUshield|SA|B27|size=x30px}}
B27

|{{Plainlist|

  • Magill Road
  • Old Norton Summit Road
  • Lobethal Road
  • Mount Torrens Road}}

|Kent Town

|{{Plainlist|

|Mount Torrens

|{{convert|37|km|mi|abbr=on|0}}

| Allocated in 2019

style="vertical-align:top; white-space:nowrap;"|{{anchor|B28}}{{AUshield|SA|B28|size=x30px}}
B28

|{{Plainlist|

  • Fullarton Road
  • Old Belair Road
  • Upper Sturt Road
  • Waverley Ridge Road
  • Mount Lofty Summit Road}}

|Fullarton

|{{Plainlist|

|Summertown

|{{convert|25|km|mi|abbr=on|0}}

|Allocated in 2019

style="vertical-align:top; white-space:nowrap;"|{{anchor|B29}}{{AUshield|SA|B29|size=x30px}}
B29

|{{Plainlist|

  • Unley Road
  • Belair Road
  • Main Road
  • Clarendon Road}}

|Unley

|{{Plainlist|

|Clarendon

|{{convert|27|km|mi|abbr=on|0}}

|Allocated in 2020

style="vertical-align:top; white-space:nowrap;"|{{anchor|B31}}{{AUshield|SA|B31|size=x30px}}
B31

|{{Plainlist|

|Campbelltown

|{{Plainlist|

|Lyndoch

|{{convert|49|km|mi|abbr=on|0}}

|Concurrency with {{AUshield|SA|B10}} along North East Road through Chain of Ponds

style="vertical-align:top; white-space:nowrap;"|{{anchor|B33}}{{AUshield|SA|B33|size=x30px}}
B33

|{{Plainlist|

|Stirling

|{{Plainlist|

|Strathalbyn

|{{convert|37|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B34}}{{AUshield|SA|B34|size=x30px}}
B34

|{{Plainlist|

|Williamstown

|{{Plainlist|

|Myponga

|{{convert|109|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|A13}} along Victor Harbor Road through Willunga Hill; {{AUshield|SA|B10}} along Torrens Valley Road through Birdwood

style="vertical-align:top; white-space:nowrap;"|{{anchor|B35}}{{AUshield|SA|B35|size=x30px}}
B35

|{{Plainlist|

  • Cricks Mill Road
  • Tungkillo Road
  • Randell Road
  • Reedy Creek Road
  • Mannum Road
  • Swanport Road}}

|Mount Crawford

|{{Plainlist|

|Murray Bridge

|{{convert|63|km|mi|abbr=on|0}}

|Concurrency with {{AUshield|SA|B10}} along Torrens Valley Road through Mount Pleasant

style="vertical-align:top; white-space:nowrap;"|{{anchor|B36}}{{AUshield|SA|B36|size=x30px}}
B36

|{{Plainlist|

|Palmer

|Mannum

|Murray Bridge North

|{{convert|38|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B37}}{{AUshield|SA|B37|size=x30px}}
B37

|{{Plainlist|

|Mount Barker

|{{Plainlist|

|Delamere

|{{convert|126|km|mi|abbr=on|0}}

|Concurrency with {{AUshield|SA|A13}} along Hindmarsh Road through Victor Harbor

style="vertical-align:top; white-space:nowrap;"|{{anchor|B45}}{{AUshield|SA|B45|size=x30px}}
B45

|{{plainlist|

  • Langhorne Creek Road
  • Ferry Road}}

|Strathalbyn

|Langhorne Creek

|Wellington East

|{{convert|49|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B55}}{{AUshield|SA|B55|size=x30px}}
B55

|{{plainlist|

|Murray Bridge

|{{Plainlist|

|Berri

|{{convert|202|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B56}}{{AUshield|SA|B56|size=x30px}}
B56

|{{plainlist|

|Winninowie

|{{plainlist|

|Peterborough

|{{convert|108|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|B80}} along RM Williams Way from Orroroo to Black Rock; {{AUshield|SA|B82}} along Horrocks Highway through Wilmington

style="vertical-align:top; white-space:nowrap;"|{{anchor|B57}}{{AUshield|SA|B57|size=x30px}}
B57

|{{Plainlist|

|Loxton

|{{Plainlist|

|Cadgee

|{{convert|292|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|A8}} along Dukes Highway from Lowan Vale to Bordertown; {{AUshield|SA|B12}} along Mallee Highway through Pinnaroo

style="vertical-align:top; white-space:nowrap;"|{{anchor|B64}}{{AUshield|SA|B64|size=x30px}}
B64

|Goyder Highway

|Crystal Brook

|{{Plainlist|

|Monash

|{{convert|266|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|A32}} along Barrier Highway through Burra; {{AUshield|SA|B80}} along RM Williams Way through Spalding; {{AUshield|SA|B82}} along Horrocks Highway through Gulnare

style="vertical-align:top; white-space:nowrap;"|{{anchor|B66}}{{AUshield|SA|B66|size=x30px}}
B66

|Riddoch Highway

|Mount Gambier

|Mount Schank

|Port MacDonnell

|{{convert|28|km|mi|abbr=on|0}}

|Continues north as {{AUshield|SA|A66}} along Riddoch Highway to Mount Gambier

style="vertical-align:top; white-space:nowrap;"|{{anchor|B77}}{{AUshield|SA|B77|size=x30px}}
B77

|{{plainlist|

  • Mallala Road
  • Old Port Wakefield Road
  • Gawler Road
  • Two Wells Road
  • Ryde Street
  • Overway Bridge Road
  • Fifteenth Street
  • Twelfth Street

}}

|Two Wells

|Gawler River

|Gawler

|{{convert|23.5|km|mi|abbr=on|0}}

|Allocated in 2021

style="vertical-align:top; white-space:nowrap;"|{{anchor|B78}}{{AUshield|SA|B78|size=x30px}}
B78

|Wilkins Highway

|Jamestown

|

|Hallett

|{{convert|38|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B79}}{{AUshield|SA|B79|size=x30px}}
B79

|{{Plainlist|

|Warnertown

|{{Plainlist|

|Ucolta

|{{convert|104|km|mi|abbr=on|0}}

|Concurrency with {{AUshield|SA|B80}} along RM Williams Way from Mannanarie to Jamestown

style="vertical-align:top; white-space:nowrap;"|{{anchor|B80}}{{AUshield|SA|B80|size=x30px}}
B80

|RM Williams Way

|Hawker

|{{Plainlist|

|Barinia

|{{convert|220|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|B56}} along RM Williams Way from Orroroo to Black Rock; {{AUshield|SA|B64}} along Goyder Highway through Spalding; {{AUshield|SA|B79}} along RM Williams Way from Mannanarie to Jamestown

style="vertical-align:top; white-space:nowrap;"|{{AUshield|SA|B81|size=x30px}}
B81

|Thiele Highway

|Gawler Belt

|{{Plainlist|

|Morgan

|{{convert|115|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B82}}{{AUshield|SA|B82|size=x30px}}
B82

|{{Plainlist|

|Quorn

|{{Plainlist|

|Gawler Belt

|{{convert|282|km|mi|abbr=on|0}}

|Concurrencies with: {{AUshield|SA|B56}} along Wilmington–Ucolta Road through Wilmington; {{AUshield|SA|B64}} along Goyder Highway through Gulnare

style="vertical-align:top; white-space:nowrap;"|{{anchor|B83}}{{AUshield|SA|B83|size=x30px}}
B83

|{{Plainlist|

|Lyndhurst

|{{Plainlist|

|Stirling North

|{{convert|292|km|mi|abbr=on|0}}

|Much of this route still is signed {{AUshield|R|83}}; {{AUshield|NR|47}} shields still visible at Flinders Ranges Way and West Terrace intersection in Quorn

style="vertical-align:top; white-space:nowrap;"|{{anchor|B84}}{{AUshield|SA|B84|size=x30px}}
B84

|{{Plainlist|

  • Port Wakefield–Balaklava Road
  • Saddleworth Road
  • Marrabel Road
  • Curio Road}}

|Port Wakefield

|{{Plainlist|

|Eudunda

|{{convert|100|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B85}}{{AUshield|SA|B85|size=x30px}}
B85

|Copper Coast Highway

|Port Wakefield

|{{Plainlist|

|Wallaroo

|{{convert|58|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B86}}{{AUshield|SA|B86|size=x30px}}
B86

|Yorke Highway

|Port Arthur

|{{Plainlist|

|Stenhouse Bay

|{{convert|181|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B88}}{{AUshield|SA|B88|size=x30px}}
B88

|St Vincent Highway

|Pine Point

|{{Plainlist|

|Warooka

|{{convert|101|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B89}}{{AUshield|SA|B89|size=x30px}}
B89

|Spencer Highway

|Port Pirie

|{{Plainlist|

|Minlaton

|{{convert|199|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B90}}{{AUshield|SA|B90|size=x30px}}
B90

|Tod Highway

|Kyancutta

|{{Plainlist|

|Uley

|{{convert|176|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B91}}{{AUshield|SA|B91|size=x30px}}
B91

|Birdseye Highway

|Elliston

|{{Plainlist|

|Cowell

|{{convert|198|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B97}}{{AUshield|SA|B97|size=x30px}}
B97

|{{Plainlist|

  • Pimba Road
  • Olympic Dam Highway}}

|Pimba

|{{Plainlist|

|Olympic Dam

|{{convert|89|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B100}}{{AUshield|SA|B100|size=x30px}}
B100

|{{Plainlist|

|Ceduna

|{{Plainlist|

|Lincoln Gap

|{{convert|715|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B101}}{{AUshield|SA|B101|size=x30px}}
B101

|Southern Ports Highway

|Kingston SE

|{{Plainlist|

|Millicent

|{{convert|119|km|mi|abbr=on|0}}

|

style="vertical-align:top; white-space:nowrap;"|{{anchor|B160}}{{AUshield|SA|B160|size=x30px}}
B160

|Glenelg Highway

|Glenburnie

|

|SA/Vic border

|{{convert|15.3|km|mi|abbr=on|0}}

|Continues east as {{AUshield|VIC|B160}} along Glenelg Highway into Victoria eventually to Ballarat (a Victorian B route "extended" into SA)

style="vertical-align:top; white-space:nowrap;"|{{anchor|B201}}{{AUshield|SA|B201|size=x30px}}
B201

|{{Plainlist|

  • Old Sturt Highway
  • Berri–Renmark Road}}

|Barmera

|Berri

|Monash

|{{convert|16.8|km|mi|abbr=on|0}}

|Former {{AUshield|SA|A20}} Sturt Highway alignment

=C routes=

Roads allocated a C route are major collector roads, linking local roads and streets to the arterial road network for inter-state travel.

While officially gazetted C routes exist in South Australia, these are currently based on existing Victorian C routes terminating in South Australian locations just inside the SA/Vic state border, and do not exist anywhere else in the state.

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="vertical-align:top; white-space:nowrap;"|{{anchor|C192}}{{AUshield|SA|C192|size=x30px}}
C192

|Glenelg River Road

|Mount Gambier

|Wye

|SA/Vic border

|{{convert|30|km|mi|abbr=on|0}}

|Continues east as {{AUshield|VIC|C192}} along Glenelg River Road into Victoria to Portland

style="vertical-align:top; white-space:nowrap;"|{{anchor|C198}}{{AUshield|SA|C198|size=x30px}}
C198

|Casterton Road

|Penola

|

|SA/Vic border

|{{convert|17.4|km|mi|abbr=on|0}}

|Continues east as {{AUshield|VIC|C198}} along Casterton–Penola Road into Victoria to Casterton

style="vertical-align:top; white-space:nowrap;"|{{anchor|C212}}{{AUshield|SA|C212|size=x30px}}
C212

|Edenhope Road

|Wrattonbully

|

|SA/Vic border

|{{convert|13.3|km|mi|abbr=on|0}}

|Continues east as {{AUshield|VIC|C212}} along Edenhope–Penola Road into Victoria to Edenhope

style="vertical-align:top; white-space:nowrap;"|{{anchor|C240}}{{AUshield|SA|C240|size=x30px}}
C240

|Wimmera Highway

|Naracoorte

|

|SA/Vicborder

|{{convert|23|km|mi|abbr=on|0}}

|Continues east as {{AUshield|VIC|B240}} along Wimmera Highway into Victoria to Marong

=R routes=

Roads allocated a R route are for ring roads, provide a path around a city, rather than travelling through it.

South Australia is currently the only state in the country to use R routes. To date, there is only one R route: around Adelaide, the state's capital city.

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="vertical-align:top; white-space:nowrap;"|{{anchor|R1}}{{AUshield|SA|R1|size=x30px}}
R1
City Ring Route

|{{plainlist|

|Adelaide

|North Adelaide

|Adelaide

|{{convert|16.9|km|mi|abbr=on|0}}

|Replaced {{AUshield|SA|A21}} in 2017 on a slightly different alignment to the southwest, listed clockwise from the western corner of Adelaide city centre

Former Routes

=National Routes=

National Routes were the first type of route numbering to be attempted in Australia on a large scale, signed with a white shield and black writing (similar in shape to the shield that appears on the Australian coat of arms), with South Australia receiving routes in 1955. They highlighted the interstate links connecting major population, industrial and principal regions of New South Wales to the rest of the Australia, in a way that was readily identifiable to interstate travellers. The system was prepared by the Conference of State Road Authorities, held between 1953 and 1954: once each state road authority agreed to the scheme, it was rolled out federally.

Selected routes were later upgraded into National Highways when the National Roads Act was passed in 1974.

South Australia's National Routes were eventually replaced with the alphanumeric system, introduced across the state between 1998 and 1999: each route was converted to an alphanumeric route number, rendering the black-and-white shield redundant. Most National Routes in rural South Australia kept their number during the conversion; two exceptions were National Route 47 (which became B83), and National Route 83 (which became B80, B82 and B83).

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="background:#d3d3d3;"

!rowspan="2" style="vertical-align:top; white-space:nowrap;"|{{anchor|NR1}}{{AUshield|NR|1|size=x30px}}
National Route 1

|{{Plainlist|

|rowspan="2" |SA/WA border

|rowspan="2" |{{Plainlist|

|rowspan="2" |SA/Vic border

|rowspan="2" |{{convert|1716|km|mi|abbr=on|0}}

|– progressively reallocated along South Eastern Freeway sections as they opened
– replaced by {{AUshield|NH|1}} from SA/WA border to Tailem Bend in 1974

style="background:#d3d3d3;"

|Princes Highway (II)

|Replaced by: {{AUshield|SA|A1}} from Mount Gambier to SA/Vic border; {{AUshield|SA|B1}} from Tailem Bend to Mount Gambier in 1998

style="background:#d3d3d3;"

!rowspan="3" style="vertical-align:top; white-space:nowrap;"|{{anchor|NR1ALT}}{{AUshield|R|ALT1|size=26px}}
Alternate
National Route 1

|{{Plainlist|

|Ceduna

|{{Plainlist|

|Lincoln Gap

|{{convert|715|km|mi|abbr=on|0}}

|Allocated after road sealing and upgrades of Flinders Highway completed in 1978, replaced by {{AUshield|SA|B100}} in 1999

style="background:#d3d3d3;"

|Southern Ports Highway

|Kingston SE

|{{Plainlist|

|Millicent

|{{convert|119|km|mi|abbr=on|0}}

| – former Princes Highway alignment (bypassed in 1933)
– allocated in 1978, replaced by {{AUshield|SA|B101}} in 1999

style="background:#d3d3d3;"

|{{Plainlist|

  • Adelaide Road
  • Old Princes Highway}}

|White Hill

|Murray Bridge

|Long Flat

|{{convert|13.2|km|mi|abbr=on|0}}

|Allocated when Swanport Bridge over the Murray River opened in 1979, replaced by {{AUshield|SA|B55}} from White Hill to Murray Bridge East in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR8}}{{AUshield|NR|8|size=30px}}
National Route 8

|Dukes Highway

|Tailem Bend

|{{Plainlist|

|SA/Vic border

|{{convert|192|km|mi|abbr=on|0}}

|Replaced by {{AUshield|NH|8}} in 1974

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR12}}{{AUshield|NR|12|size=30px}}
National Route 12

|Mallee Highway

|Tailem Bend

|{{Plainlist|

|SA/Vic border

|{{convert|145|km|mi|abbr=on|0}}

|Replaced by {{AUshield|SA|B12}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR20}}{{AUshield|NR|20|size=30px}}
National Route 20

|{{Plainlist|

|Gepps Cross

|{{Plainlist|

|SA/Vic border

|{{convert|267|km|mi|abbr=on|0}}

|Replaced by {{AUshield|NH|20}} in 1992

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR20ALT}}{{AUshield|R|ALT20|size=26px}}
Alternative
National Route 20

|Old Sturt Highway

|Barmera

|Berri

|Monash

|{{convert|16.8|km|mi|abbr=on|0}}

|Former {{AUshield|NH|20}} Sturt Highway alignment, replaced by {{AUshield|SA|B201}} in 1999

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR32}}{{AUshield|NR|32|size=x30px}}
National Route 32

|{{Plainlist|

|Gawler

|{{Plainlist|

|SA/NSW border

|{{convert|417|km|mi|0|abbr=on}}

|Replaced by {{AUshield|SA|A32}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR47}}{{AUshield|NR|47|size=x30px}}
National Route 47

|Flinders Ranges Way

|Hawker

|Quorn

|Stirling North

|{{convert|98|km|mi|abbr=on|0}}

|Replaced by {{AUshield|SA|B83}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR56}}{{AUshield|NR|56|size=x30px}}
National Route 56

|Wilmington–Ucolta Road

|Winninowie

|{{Plainlist|

|Ucolta

|{{convert|123|km|mi|abbr=on|0}}

|Replaced by {{AUshield|SA|B56}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR64}}{{AUshield|NR|64|size=x30px}}
National Route 64

|Goyder Highway

|Crystal Brook

|{{Plainlist|

|Monash

|{{convert|266|km|mi|abbr=on|0}}

|Replaced by {{AUshield|SA|B64}} in 1998

style="background:#d3d3d3;"

!rowspan="3" style="vertical-align:top; white-space:nowrap;"|{{anchor|NR83}}{{AUshield|NR|83|size=x30px}}
National Route 83

|The Outback Highway (Barndioota Road)

|rowspan="3" |Lyndhurst

|rowspan="3" |{{Plainlist|

|rowspan="3" |Giles Corner

|rowspan="3" |{{convert|292|km|mi|abbr=on|0}}

|Replaced by {{AUshield|SA|B83}} in 1998

style="background:#d3d3d3;"

|RM Williams Way

|Replaced by {{AUshield|SA|B80}} in 1998

style="background:#d3d3d3;"

|Main North Road

|Replaced by {{AUshield|SA|B82}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NR87}}{{AUshield|NR|87|size=x30px}}
National Route 87

|Stuart Highway

|SA/NT border

|{{Plainlist|

|Port Augusta West

|{{convert|928|km|mi|abbr=on|0}}

|Replaced by {{AUshield|NH|87}} in 1974

colspan="7" style="text-align:center; background:#f2f2f2;" |{{legend|#d3d3d3|Decommissioned or unsigned allocation}}

=National Highways=

With the passing of the National Roads Act in 1974, selected National Routes were further upgraded to the status of a National Highway: interstate roads linking Australia's capital cities and major regional centres that received federal funding, and were of higher importance than other National Routes. These new routes were symbolised by green shields with gold writing, and the word "National" along the top of the shield. Most of South Australia's National Highways were declared in 1974 and their shields converted in the following years, with National Highway 20 later declared in 1992.

Like National Routes, South Australia's National Highways were also replaced with the alphanumeric system, introduced across the state in 1998: each route was converted to an alphanumeric route number, all keeping their number during the conversion, but also initially keeping the National green-and-gold shield design; this was eventually eliminated in 2017.

class="wikitable sortable"

! scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="background:#d3d3d3;"

!rowspan="3" style="vertical-align:top; white-space:nowrap;"|{{anchor|NH1}}{{AUshield|NH|1|size=x30px}}
National Highway 1

|{{Plainlist|

|rowspan="3" |SA/WA border

|rowspan="3" |{{Plainlist|

|rowspan="3" |Tailem Bend

|rowspan="3" |{{convert|1716|km|mi|abbr=on|0}}

| – replaced by {{AUshield|NH|A1}} in 1998, being progressively replaced by {{AUshield|SA|A1}} from 2017
– Princes Highway (I) renamed Augusta Highway in 2011

style="background:#d3d3d3;"

|South Eastern Freeway

| – progressively reallocated along South Eastern Freeway sections as they opened eventually to Murray Bridge in 1979
– replaced by {{AUshield|NH|M1}} in 1998, being progressively replaced by {{AUshield|SA|M1}} from 2017

style="background:#d3d3d3;"

|Princes Highway (II)

|Replaced by {{AUshield|NH|A1}} in 1998, being progressively replaced by {{AUshield|SA|A1}} from 2017

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NH8}}{{AUshield|NH|8|size=30px}}
National Highway 8

|Dukes Highway

|Tailem Bend

|{{Plainlist|

|SA/Vic border

|{{convert|192|km|mi|abbr=on|0}}

| – western end re-aligned from Tailem Bend to Coomandook through Cooke Plains in 1980
– re-aligned through Bordertown when Bordertown bypass opened in 1987
– replaced by {{AUshield|NH|A8}} in 1998, being progressively replaced by {{AUshield|SA|A8}} from 2017

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NH20}}{{AUshield|NH|20|size=x30px}}
National Highway 20

|{{Plainlist|

|Gepps Cross

|{{Plainlist|

|SA/Vic border

|{{convert|267|km|mi|abbr=on|0}}

|Replaced by {{AUshield|NH|A20}} in 1998, being progressively replaced by {{AUshield|SA|A20}} from 2017

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|NH87}}{{AUshield|NH|87|size=x30px}}
National Highway 87

|Stuart Highway

|SA/NT border

|{{Plainlist|

|Port Augusta West

|{{convert|928|km|mi|abbr=on|0}}

|Replaced by {{AUshield|NH|A87}} in 1998, being progressively replaced by {{AUshield|SA|A87}} from 2017

colspan="7" style="text-align:center; background:#f2f2f2;" |{{legend|#d3d3d3|Decommissioned or unsigned allocation}}

=State Routes (from Victoria)=

South Australia never adopted State Routes, but allowed two Victorian rural State Routes to cross the border and terminate in South Australian locations within 20 km of it when they were rolled out there in 1985; these were replaced by their Victorian equivalent alphanumeric allocations in 1998.

class="wikitable sortable"
scope="col" | Route

! scope="col" | Component roads

! scope="col" | From

! scope="col" | Via

! scope="col" | To

! scope="col" | Length

! scope="col" | Notes

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|112}}{{AUshield|S|112|size=x30px}}
State Route 112

|Glenelg Highway

|Glenburnie

|

|SA/Vic border

|{{convert|15.3|km|mi|abbr=on|0}}

|Continued east as {{AUshield|S|112}} along Glenelg Highway into Victoria eventually to Ballarat; replaced by {{AUshield|VIC|B160}} in 1998

style="background:#d3d3d3;"

!style="vertical-align:top; white-space:nowrap;"|{{anchor|130}}{{AUshield|S|130|size=x30px}}
State Route 130

|Wimmera Highway

|Naracoorte

|

|SA/Vic border

|{{convert|23|km|mi|abbr=on|0}}

|Continued east as {{AUshield|S|130}} along Wimmera Highway into Victoria eventually to St Arnaud; replaced by {{AUshield|VIC|C240}} in 1998

colspan="7" style="text-align:center; background:#f2f2f2;"|{{legend|#d3d3d3|Decommissioned or unsigned route}}

See also

{{Portal|Australian Roads|South Australia}}

References

{{reflist|30em}}

{{Reflist|group=lower-roman}}

{{Road infrastructure in Adelaide}}

{{South Australia|}}

01

R

South Australia

.Road routes

Road routes