South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...

, Highway 1 is a long route that follows the coastline of the state, from the Victorian border near

Mount Gambier Mount Gambier is the second most populated city in South Australia, with an estimated urban population of 33,233 . The city is located on the slopes of Mount Gambier, a volcano in the south east of the state, about south-east of the capital Ad ...

to the

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

n border near Eucla. Highway 1 continues around the rest of

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, joining all mainland state capitals, and connecting major centres in

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

. All roads within the Highway 1 system are allocated a road route numbered M1, A1, B1 or R1, depending on the state route numbering system. In South Australia, most of the highway is designated as route A1, with multi-lane, dual-carriage-way sections generally designated route M1, and the alignment around the Adelaide CBD designated route R1. South-east of

Tailem Bend Tailem Bend (locally, "Tailem") is a rural town in South Australia, south-east of the state capital of Adelaide. It is located on the lower reaches of the River Murray, near where the river flows into Lake Alexandrina. It is linear in layout s ...

, it is designated route B1. Pt wakefield rd, mawson lakes

History

Highway 1 was created as part of the National Route Numbering system, adopted in 1955. The route was compiled from an existing network of

state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...

and

local Local may refer to: Geography and transportation * Local (train), a train serving local traffic demand * Local, Missouri, a community in the United States * Local government, a form of public administration, usually the lowest tier of administrat ...

roads and tracks.

Route description

, the highway connects: * from the SA/VIC border **via Princes Highway to *

**via Princes Highway to *

**via Princes Highway to * Murray Bridge **via

South Eastern Freeway South Eastern Freeway is a freeway in South Australia (SA). It is a part of the National Highway network linking the state capital cities of Adelaide, SA, and Melbourne, Victoria, and signed as National Highway M1. It carries traffic over t ...

to *

Glen Osmond Glen Osmond is a suburb of Adelaide, South Australia in the City of Burnside which is in the foothills of the Adelaide Hills. It is well known for the road intersection on the western side of the suburb, where the South Eastern Freeway (National ...

**via

and

Fullarton Road Fullarton Road is a main road in the South Australian capital city of Adelaide. Route It runs north–south in a straight line from the eastern edge of the CBD to the south-eastern suburbs of the city. Its northern beginning is at the intersecti ...

s to *

Dulwich Dulwich (; ) is an area in south London, England. The settlement is mostly in the London Borough of Southwark, with parts in the London Borough of Lambeth, and consists of Dulwich Village, East Dulwich, West Dulwich, and the Southwark half of ...

, on the eastern edge of the

Adelaide city centre Adelaide city centre (Kaurna: Tarndanya) is the inner city locality of Greater Adelaide, the capital city of South Australia. It is known by locals simply as "the City" or "Town" to distinguish it from Greater Adelaide and from the City of Ad ...

**via City Ring Route to *

Medindie Medindie (formerly also known as Medindee or Medindi) is an inner northern suburb of Adelaide the capital of South Australia. It is located adjacent to the Adelaide Park Lands, just north of North Adelaide, and is bounded by Robe Terrace to the ...

, on the northern edge of

North Adelaide North Adelaide is a predominantly residential precinct and suburb of the City of Adelaide in South Australia, situated north of the River Torrens and within the Adelaide Park Lands. History Surveyor-General Colonel William Light of the colo ...

**via

Main North Road Main North Road is the major north-south arterial route through the suburbs north of the Adelaide City Centre in the city of Adelaide, South Australia. It continues north through the settled areas of South Australia and is a total of long, fro ...

to *

Gepps Cross Gepps Cross (pronounced 'Jepps Cross') is a suburb and major road intersection in the north of Adelaide, South Australia. Gepps Cross is traditionally seen as the end of the inner suburbs and the start of the outer northern suburbs, as it was hom ...

** via

Port Wakefield Road Port Wakefield Highway (and its southern section as Port Wakefield Road) is an important South Australian highway, connecting Adelaide to the Yorke Peninsula, Port Augusta, northern and western South Australia, the Northern Territory and Wester ...

and

Port Wakefield Highway Port Wakefield Highway (and its southern section as Port Wakefield Road) is an important South Australian highway, connecting Adelaide to the Yorke Peninsula, Port Augusta, northern and western South Australia, the Northern Territory and Weste ...

to *

Port Wakefield Port Wakefield may refer to. Australia *Port Wakefield, South Australia, a town and locality * Port Wakefield railway line, part of the now-closed Balaklava-Moonta railway line in South Australia * Port Wakefield Circuit, a former motor racing cir ...

**via

Augusta Highway Augusta Highway is the part of Australia's ring route (Highway 1) located in South Australia between Port Wakefield and Port Augusta. Route Augusta Highway starts at the intersection with Eyre and Stuart Highways in Port Augusta West, then ...

to * Port Augusta **via

Eyre Highway Eyre Highway is a highway linking Western Australia and South Australia via the Nullarbor Plain. Signed as National Highways 1 and A1, it forms part of Highway 1 and the Australian National Highway network linking Perth and Adelaide. It ...

to * Eucla

Major intersections

Riddoch Highway Riddoch Highway is a rural highway in south-eastern South Australia, designated as route A66 between Keith and Mount Gambier, with the remainder between Mount Gambier and Port MacDonnell designated as route B66. It is named after John Riddoch, t ...

(A66/B66) *

Dukes Highway Dukes Highway is a 190 kilometre highway corridor in South Australia which is part of the link between the Australian cities of Adelaide and Melbourne. It is part of the National Highway system spanning Australia, and is signed as route A8. Ro ...

(A8) *

Portrush Road Portrush Road is a major arterial route through the eastern suburbs of Adelaide, the capital of South Australia. This name covers many consecutive streets and is not widely known to most drivers except for the southernmost section, as the entire ...

(A17) *

Salisbury Highway Salisbury Highway (and its northern section as John Rice Avenue) is a 15 kilometre major connecting road in the northern suburbs of the Adelaide metropolitan area. It is designated part of route A9. Route Salisbury Highway starts at the interch ...

(A9) *

Northern Expressway Northern Expressway, also known as the Fatchen Northern Expressway, is a 21 kilometre long controlled-access highway in Adelaide, South Australia. Since March 2020, the North–South Motorway continues west of Port Wakefield Highway and interse ...

(M2) *

Stuart Highway Stuart Highway is a major Australian highway. It runs from Darwin, in the Northern Territory, via Tennant Creek and Alice Springs, to Port Augusta in South Australia; a distance of . Its northern and southern extremities are segments of Aus ...

(A87) *

Lincoln Highway The Lincoln Highway is the first transcontinental highway in the United States and one of the first highways designed expressly for automobiles. Conceived in 1912 by Indiana entrepreneur Carl G. Fisher, and formally dedicated October 31, 1913 ...

(B100) *

Tod Highway Tod Highway is an important 177 kilometre highway serving South Australia's Eyre Peninsula's wheatbelt, and is designated route B90. It is named after Robert Tod who explored the area in 1839. Route Tod Highway begins from Eyre Highway at Kyanc ...

(B90) * Flinders Highway (B100)

History

Route description

Major intersections

References

See also