Eyre Highway is a 1,664-kilometre (1,034 mi) 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 was named after explorer Edward John Eyre, who was the first European to cross the Nullarbor by land, in 1840–1841. Eyre Highway runs from Norseman in Western Australia, past Eucla, to the state border. Continuing to the South Australian town of Ceduna, it crosses the top of the Eyre Peninsula before reaching Port Augusta.

Eyre Highway

South Australia
The Eyre Highway at Eucla Pass
Map of South Australia and southern Western Australia with Eyre Highway highlighted in red
General information
TypeHighway
Length1,664 km (1,034 mi)[1]
Opened1942
Route number(s)
  • National Highway 1 (1974–present)
    (Western Australia)
  • A1 (2017–present)
    (South Australia)
Former
route number
  • National Highway A1 (1998–2017)
  • National Highway 1 (1974–1998)
    (South Australia)
  • National Route 1 (1955–1974)
    Entire route
Major junctions
West end Coolgardie–Esperance Highway
Norseman, Western Australia
 
East end Augusta Highway
Port Augusta, South Australia
Location(s)
Major settlementsEucla, Ceduna, Kyancutta, Kimba
Highway system

The construction of the East–West Telegraph line in the 1870s, along Eyre's route, resulted in a hazardous trail that could be followed for interstate travel. A national highway was called for, with the federal government seeing the route's importance in 1941, when a war in the Pacific seemed imminent. The highway was constructed between July 1941 and June 1942, and was trafficable by January 1942. It was originally named Forrest Highway, after John Forrest, by the war cabinet. It was officially named Eyre Highway, a name agreed upon by the states' nomenclature committees.

The finished road, while an improvement over the previous route, still was not much more than a track, and remained such throughout the 1940s and 1950s. Efforts to seal the highway began in Norseman in 1960, with the Western Australian section completed in 1969 and the South Australian section finished in 1976. Further improvement works have been undertaken since the 1980s, including widening and reconstructing portions of the road.

Route description edit

Eyre Highway is the only sealed road linking the states of Western Australia and South Australia.[2] It is one of Western Australia's two sealed interstate roads, the other being the Victoria Highway linking Western Australia and Northern Territory. Eyre Highway runs east from Norseman in Western Australia for 1,200 kilometres (750 mi) across the Nullarbor Plain to Ceduna, South Australia. It crosses the top of the Eyre Peninsula as it continues eastwards for 470 kilometres (290 mi), before reaching Port Augusta.[3]

Eyre Highway is part of the National Highway route between Perth and Adelaide, and forms part of Australia's Highway 1. It is signed as National Highway 1 in Western Australia,[4] and National Highway A1 in South Australia.[5][6] The vast majority of the highway is a two-lane single carriageway[3] with a speed limit of 110 kilometres per hour (68 mph), except in and around built-up areas.[7][8] Road trains (A-double or B-triple) up to 42.5 metres (139 ft) are permitted on the Eyre Highway, with Quads up to 49.5 metres (163 feet) between Ceduna and Colona Station turnoff[9] limited to 100 kilometres per hour (62 mph).[10]

The Western Australian section of Eyre Highway is on the western side of the Nullarbor Plain. The South Australian section crosses the eastern section of the Nullarbor Plain, and the top of the Eyre Peninsula. The Nullarbor gets its name from Latin for "no tree".[11] The typical view on the route is a straight highway and practically unchanging flat saltbush-covered terrain.[12] The Eyre Peninsula has been extensively cleared for agriculture, although there are remnant corridors of native eucalyptus woodland alongside its roads.[13]

Main Roads Western Australia and the Department for Infrastructure & Transport in South Australia monitor traffic volume across the states' road networks, including various locations along Eyre Highway.[14]: 3 [15] In Western Australia, the recorded traffic volumes ranged between 430 and 760 vehicles per day in 2013/14.[14]: 5  In South Australia, the estimated annual average daily traffic as of September 2015 varied between 500 and 1,500 vehicles west of Lincoln Highway, and was 2,700 to the east.[16]

Safety edit

 
The Eyre Highway crosses the flat terrain of the Nullarbor Plain

In 2011, the Australian Automobile Association considered the Eyre Highway to be among the lowest risk highways in the country, based on total number of casualty crashes[a] per length of road. The individual risk based on casualty crash rates per vehicle kilometre travelled was assessed as high for the 95 km section east of Yalata to Fowlers Bay. It was medium for a 106-kilometre (66 mi) section from Fowlers Bay to Ceduna, low-medium between Ceduna and Port Augusta, and low west of Yalata.[17]

In 2013, Eyre Highway similarly received a lower safety rating for the South Australian sections, compared to the Western Australian section. Out of five stars, approximately 10% was rated as one- or two-star in Western Australia, generally towards the Norseman end, and 91% was rated three- or four-star. In South Australia, 49% was rated as one- or two-star, mostly from Yalata to Ceduna, and across the Eyre Peninsula, with the remaining 51% rated as three- or four-star.[18]

Western Australia edit

Eyre Highway begins at the town of Norseman, on the Coolgardie–Esperance Highway. Apart from Eucla, 12 kilometres (7.5 mi) from the South Australia border, roadhouses serving the highway are the only settlements on the 720-kilometre-long (450 mi) stretch through Western Australia.[2] These are located 65 to 180 kilometres (40 to 110 mi) apart,[19] at Balladonia, Caiguna, Cocklebiddy, Madura, and Mundrabilla.[2] The section between Balladonia and Caiguna includes what is regarded as the longest straight stretch of road in Australia and one of the longest in the world. The road stretches for 146.6 kilometres (91.1 mi) without turning, and is signposted and commonly known as the "90 Mile Straight".[20][21] Travelling east, the highway descends through the Madura Pass just before the Madura roadhouse from the Nullarbor Plain to the coastal Roe Plains. It skirts the bottom of the escarpment, climbing back through the Eucla Pass just before Eucla.[22]

Because of its remoteness, some widened sections of the highway serve as emergency airstrips for the Royal Flying Doctor Service.[23] These airstrips are signposted, have runway pavement markings painted on the road, and turnaround bays for small aircraft.[24]

South Australia edit

 
Driving north along the Eyre Highway between Iron Knob and Port Augusta

After crossing the border at the settlement of Border Village, the highway passes through the Nullarbor Wilderness Protection Area and through the localities of Yalata, Penong and Ceduna. Before arriving at Ceduna, it enters the Eyre Peninsula. After Ceduna, the highway passes the intersection with Flinders Highway and heads south-east towards Kyancutta. After passing through Wirrulla, Poochera, Yanninee and Wudinna, the highway arrives at Kyancutta where it meets the north end of the Tod Highway.

After Kyancutta, the highway turns to the east towards the town of Kimba. Before arriving at Kimba, it turns to the north-east. After Kimba, the highway passes through the southern end of the Lake Gilles Conservation Park and to the immediate north of both the town of Iron Knob and the Cultana Training Area before meeting the Lincoln Highway. It continues north-east until it intersects with the Augusta Highway and Stuart Highway,[25][26][27] north-west of the Joy Baluch AM Bridge which crosses Spencer Gulf at Port Augusta.[28][29]

An alternative route between Ceduna and Port Augusta, formerly signed Alternate National Route 1[30] and now signed B100,[31] follows Flinders Highway and Lincoln Highway down the western and eastern sides of the peninsula respectively.[25]

History edit

Background edit

 
Edward John Eyre's expeditions, including along the coastline of the Great Australian Bight and the Nullarbor Plain

In 1840–1841, Edward John Eyre was the first European to traverse the coastline of the Great Australian Bight and the Nullarbor Plain by land, on an almost 2,000-mile (3,200 km) trip from Adelaide to Albany, Western Australia.[32]

Three decades later, the East–West Telegraph line was installed. Constructed between 1875 and 1877, it followed the same route across the Nullarbor and along the Great Australian Bight, after John Forrest retraced Eyre's route in 1870 and confirmed its suitability. Repeater stations were installed at Port Lincoln, Streaky Bay, Smoky Bay, Fowlers Bay, Eucla, Israelite Bay, Esperance and Bremer Bay. Stations were later added at Franklin Harbour (Cowell) in 1885, Yardea in 1896 and Balladonia in 1897.[33]

From 1912 to 1917 an inland route across the Nullarbor was established with the construction of the Trans-Australian Railway, from Port Augusta via Tarcoola to Kalgoorlie. With few roads or tracks encountering the line, most of it is only accessible by rail.[34]

Highway planning and construction edit

 
The trail heading west to Ceduna in 1929

The construction of the telegraph had resulted in a trail that could be followed for interstate travel, but it was a haphazard route which only the more adventurous motorists would take.[35]: 93  Many travellers were unprepared for the harsh conditions and lack of services. They would cause a nuisance for station owners and other travellers by scrounging petrol, contaminating water supplies, leaving gates open, and committing acts of vandalism.[36]

In 1938 the Royal Automobile Club of Western Australia (RAC) called for a national highway to be constructed by the federal government, as it would be a strategic defence road, provide another link between Western Australia and other states, and improve the tourist experience.[37] The federal government did not see the road as important enough for its involvement.[38]

In May 1941, following the construction of the central north–south Stuart Highway, the federal government announced its decision to build the east–west highway between Norseman and Port Augusta.[39] A northerly route, close to the Trans-Australian Railway, had been considered, but extensive limestone outcrops made it impractical. Taking a route east from Norseman, with some detours around limestone ridges, would allow a road to be formed quickly and easily. With a war in the Pacific seemingly imminent, construction began in July 1941. The Army was responsible for fuel, food, and communications, while the state government departments of Main Roads (Western Australia) and Highways (South Australia) managed the construction.[35]: 93–96 

 
The Madura Pass section in 1941, before (top) and after (bottom) construction

The road was completed in June 1942. Construction cost twice the initial £125,000 estimate over a period of four months.[35]: 95–96  The road was sufficiently trafficable and in use by January 1942.[40] The finished road, while an improvement over the previous route, still was not much more than a track. The only sections with a bitumen surface were the Madura and Eucla Passes. The formed width was 30 feet (9 m), with some sections[b] lightly gravelled over a 16-foot (4.9 m) width.[35]: 96 

By the middle of the century, several water tanks with up to 44,000 imperial gallons (200,000 L; 53,000 US gal) capacity were located alongside the highway, including at Madura Pass, Moonera, Cocklebiddy, and 28 miles (45 km) east of Mundrabilla.[41] In some cases the tanks were accompanied by amenity such as a shed,[42] or a hut and stove,[41] or even petrol and cafes at Ivy Tanks.[43][44] The establishment of Ivy Tanks in any form was being lost by the 1980s.[45]

Naming edit

In the 1930s and 1940s, the Western Australian Nomenclature Advisory Committee[c] had been choosing directional names for the state's main arterial roads, such as Great Eastern Highway.[47] The South Australian Highways Department had been naming the major roads to other states after explorers, such as Flinders Highway, named after Matthew Flinders. In 1938, the historical memorials committee of the Royal Geographical Society in South Australia was disappointed that no road had been named after Eyre, despite its suggestion that the road from Port Augusta towards Perth should be Eyre Highway.[48] In the same year, the RAC suggested that the proposed new highway be named Forrest Highway, after John Forrest. The Assistant Minister for Commerce, Senator Macdonald, concurred.[37]

On 21 January 1942, Prime Minister John Curtin announced the war cabinet decision to name the newly constructed road Forrest Highway,[49] for military purposes.[50] Separately, the states' nomenclature committees were considering names for the road. A proposal for a single name to be used in both states was put by the Western Australian committee to the South Australian committee when the highway was completed. Two names were suggested: Great Western Highway, in line with similar directional names in Western Australia, and Eyre Highway, after the explorer. After several communications between the committees, both decided to use the name Eyre Highway.[47] After receiving a letter from the South Australian Premier in May 1943, supporting the nomenclature committee's recommendation, Curtin agreed to the name, subject to approval from the Western Australian government.[51]

The South Australian section was named Eyre Highway on 20 May 1943, with the portion from Murat Bay (Ceduna) to the state border declared a main road.[52] Eyre Highway was gazetted in Western Australia on 11 June 1943, and included the road from Coolgardie to Norseman until Coolgardie–Esperance Highway was gazetted on 16 August 1957.[53][54]

Sealing edit

 
A sealed surface at the west end of "90 Mile Straight", looking east

The state of Eyre Highway remained relatively unchanged throughout the 1940s and 1950s. The road received yearly maintenance, but further, more expensive works were not warranted due to the low traffic volume of approximately fourteen vehicles per day.[35]: 152–153  The maintenance and grading was hindered by a lack of rainfall – the road was smoothed out each year, and small sections were gravelled, but the soil the road was made from was too weak to be an effective road surface.[35]: 186–7  When it did rain, even in small amounts, the road would become boggy, from patches that had broken down into a powdery substance, known as "bulldust", during dry periods.[35]: 223  Large numbers of vehicles travelling the highway in 1962, for the Commonwealth Games in Perth, damaged the road in numerous locations, and the lack of moisture required salt water to be pumped from 350 feet (110 m) below the surface for use in repairs and maintenance.[35]: 186–7 

Work to seal Eyre Highway was undertaken in the 1960s and 1970s. As the federal government refused requests from Western Australia and South Australia for a special allocation to fund the sealed road, the work was left for the states to finance, over a number of years.[35]: 223  Construction began in 1960, at the Norseman end. By the end of that year five miles (8 km) had been reconstructed, and was ready to be sealed over a 20-foot (6 m) width. Fourteen miles (23 km) were sealed in 1961, another 67 miles (108 km) were completed by 1963, and in 1964 the seal reached 111 miles (179 km) out from Norseman.[35]: 187  By the mid-1960s, approximately 60 miles (100 km) were being sealed each year. With increased priority given to the project from 1966, Western Australia's portion of the highway was completed in 1969, with a ceremony held in Eucla on 17 October.[35]: 223–225 [55]

 
The Great Australian Bight is a short detour away at several places along the highway

In South Australia, a decade-long program to seal the highway began in the mid-1960s. The first section completed was the 462-kilometre (287 mi) route between Port Augusta and Ceduna, in December 1967. In October 1972 the Ceduna to Penong seal was completed. The final link to be sealed, between Penong and the state border, was completed with a ceremony held in September 1976 near Wigunda Tank, South Australia.[56]

Between Yalata and the state border, the highway was realigned and deviated considerably from the original unsealed route. In deciding the new alignment for the South Australian section of the highway between Yalata and the state border, long, straight, flat sections were purposely avoided to prevent driver boredom and consequent fatigue, as well as sun-glare and glare from oncoming headlights. The new alignment also took into consideration the potential tourism opportunities provided along the coast of the Great Australian Bight.[56]

The older route, Old Eyre Highway,[57] runs from Border Village to the Nullarbor Homestead, approximately 15 to 20 kilometres (9 to 12 mi) away from the coast.[58] Another section from the Nullarbor Homestead to Nundroo Motel also travelled further inland than the new alignment, past Ivy Tank Motel and Yalata Roadhouse.[58]

Further improvements edit

The 1960s standard of a twenty-foot (6.2 m) sealed width[59] with four-foot-wide (1.2 m) gravel shoulders was proving to be inadequate by the 1980s. Increasing numbers of truck and tourist coaches caused fretting, and reduced the actual sealed width to 5.6 metres (18 ft) along much of Eyre Highway. Main Roads in Western Australia spent around a million dollars a year on rehabilitating 50-to-100-kilometre (30 to 60 mi) sections. A major project to improve Eyre Highway, rather than just repair the damage, began in 1984 with federal government providing funding to reconstruct 300 kilometres (190 mi) in Western Australia.[35]: 367 

The highway was rebuilt with a seven-metre-wide (23 ft) pavement, with shoulders partially sealed to a width of one metre (3 ft 3 in). Work began in mid-1985 near Cocklebiddy, with a 58-kilometre-long (36 mi) section completed in 1986. Work undertaken from 1987 to 1988 reached out 110 kilometres (68 mi) east of Cocklebiddy, and 225 kilometres (140 mi) had been completed by June 1990.[35]: 367  The upgrade from Cocklebiddy to the state border was completed in October 1994.[35]: 388 

Since the 1990s, regular maintenance and minor improvements have been an ongoing effort. There have been larger-scale works including reconstruction of sections near Caiguna, Balladonia, and the Frazer Range in Western Australia,[60] as well as Cungena and Kyancutta in South Australia.[61]

Major intersections edit

StateLGA[62]Location[1][25]km[1]miDestinations[2]Notes
Western AustraliaDundasNorseman0.00.0   Coolgardie–Esperance Highway (National Highway 94 north, National Route 1 south) – Coolgardie, Kalgoorlie, Perth, EsperanceWestern terminus of highway and National Highway 1
0.30.19Esperance Branch Railway
Eucla707439  Eucla–Reid Road – Eucla, Eucla Airport
720450  Eyre Highway (National Highway 1)Eastern terminus of National Highway 1
State borderWestern Australia – South Australia state border
South AustraliaPastoral Unincorporated AreaNullarbor  Eyre Highway (A1)Western terminus of route A1
CedunaCeduna1,196743Eyre Peninsula Railway
1,200750
1,204748  Flinders Highway (B100) – Streaky Bay, Port Lincoln
Streaky BayPoochera1,337831Streaky Bay Road – Streaky Bay
WudinnaKyancutta1,422884  Tod Highway (B90 south) – Lock, Port LincolnT-junction: Eyre Highway continues east
1,423884Eyre Peninsula Railway
KimbaKimba1,509938
1,510940Cleve Road – Cleve, Arno Bay
Pastoral Unincorporated AreaIron Knob1,598993Iron Knob Road – Iron Knob, Whyalla
Lincoln Gap1,6401,020  Lincoln Highway (B100 southwest) – Whyalla, Port LincolnT-junction: Eyre Highway continues northeast
1,6511,026Whyalla railway line
Port AugustaPort Augusta West1,6641,034  Stuart Highway (A87 north) – Coober Pedy, Alice Springs, Darwin
  Augusta Highway (A1 east) – Port Wakefield, Snowtown, AdelaideEastern terminus of highway, route A1 continues east along Augusta Highway
  •       Route transition

See also edit

Notes edit

  1. ^ The Australian Automobile Association's How Safe are our Roads? Rating Australia's National Network for Risk report defines a casualty crash as "any road crash in which at least one person is killed or injured and this includes serious injuries which typically represent one third of casualty crashes".[17]
  2. ^ In Western Australia, approximately 280 out 452 miles (450 out of 727 km)[35]: 96 
  3. ^ Now the Geographic Names Committee[46]

References edit

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  2. ^ a b c d Main Roads Western Australia (13 August 2013). Goldfields-Esperance Region map (PDF) (Map). 1:2,127,656. Version 1.0. Government of Western Australia. Archived from the original on 29 August 2013. Retrieved 22 September 2015.
  3. ^ a b Google (13 October 2015). "Eyre Highway: Driving directions from Norseman via Ceduna to Port Augusta" (Map). Google Maps. Google. Retrieved 13 October 2015.
  4. ^ "Route Numbering System in Western Australia" (PDF). Main Roads Western Australia. 2006. pp. 1–2. Archived from the original (PDF) on 2 September 2007. Retrieved 26 November 2012.
  5. ^ Department of Planning, Transport and Infrastructure. Eyre Highway (road sign). Border Village, SA: Government of South Australia. Retrieved 15 October 2015 – via Google Maps Street View.
  6. ^ Department of Planning, Transport and Infrastructure. Eyre Highway (road sign). Port Augusta, SA: Government of South Australia. Retrieved 15 October 2015 – via Google Maps Street View.
  7. ^ Main Roads Western Australia. "Road Information Mapping System". Government of Western Australia. Archived from the original on 28 September 2013. Retrieved 15 October 2015.
  8. ^ "Local Information". Far West Coast – Eyre Peninsula – South Australia. Ceduna Business & Tourism Association. Archived from the original on 18 March 2015. Retrieved 15 October 2015. "Ceduna Business & Tourism Association - Local Information". Archived from the original on 10 March 2016. Retrieved 15 October 2015.
  9. ^ "RAVnet online mapping system". Government of South Australia, Department of Planning, transport and Infrastructure. Retrieved 16 October 2015.
  10. ^ Brian E Hemming, Director, Transport Safety Regulation (19 August 2011). "Operation of Road Train vehicles in South Australia" (PDF). Department for Transport, Energy and Infrastructure. p. 2. Archived from the original (PDF) on 21 August 2016. Retrieved 16 October 2015.{{cite web}}: CS1 maint: multiple names: authors list (link)
  11. ^ Macquarie Dictionary (2nd ed.). Macquarie University. 1991. p. 1220. ISBN 0-949757-63-2.
  12. ^ "Nullarbor Plain xeric shrublands". Terrestrial Ecoregions. World Wildlife Fund. Retrieved 13 October 2015.
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  28. ^ "Bridge named in honour of Joy Baluch AM" (PDF). News Release. Government of South Australia. 17 May 2013. Archived (PDF) from the original on 22 January 2016. Retrieved 22 January 2016. "Archived copy" (PDF). Archived from the original on 22 January 2016. Retrieved 22 January 2016.{{cite web}}: CS1 maint: archived copy as title (link) CS1 maint: bot: original URL status unknown (link)
  29. ^ Smith, Ryan (22 May 2013). "Joy Baluch AM Bridge officially unveiled". The Transcontinental. Port Augusta. Archived from the original on 21 December 2015. Retrieved 22 January 2016.
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  31. ^ "Location SA Map viewer with road route layers". Government of South Australia. Retrieved 16 June 2022.
  32. ^ Dutton, Geoffrey (2006) [First published 1966]. "Eyre, Edward John (1815–1901)". Australian Dictionary of Biography. National Centre of Biography, Australian National University. Retrieved 24 September 2015.
  33. ^ South Australia and Western Australia Divisions, The Institute of Engineers, Australia (2 June 2001). "Nomination of the East-West Telegraph Line for a National Engineering Landmark" (PDF). The Institute of Engineers, Australia. Retrieved 24 September 2015.{{cite web}}: CS1 maint: multiple names: authors list (link)
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  41. ^ a b "Eyre Highway". Kalgoorlie Miner. Western Australia. 21 April 1949. p. 4. Retrieved 13 January 2020 – via Trove.
  42. ^ Gundalabbie shed and tanks on the Nullarbor Plains, 1958, retrieved 12 January 2020
  43. ^ Transport - Road - Ivy Tanks Cafe and petrol station stop for Truckies, Ivy Tanks, Eyre Highway, Western Australia, 1968 ( photograph by K. Fellowes ) CATEGORY: Photograph PRINCIPAL CREDIT: Australian News and Information Bureau FORMAT: b&w negative TYPE: cellulose acetate STATUS: preservation material, 1968, retrieved 12 January 2020
  44. ^ Cities and towns - Township of Ivy Tanks, 1043 miles from Perth and 661 from Adelaide CATEGORY: Photograph PRINCIPAL CREDIT: Australian News and Information Bureau FORMAT: b&w negative TYPE: cellulose acetate STATUS: preservation material, 1968, retrieved 12 January 2020
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  46. ^ Western Australian Land Information Authority. "Geographic Names Committee". Government of Western Australia. Archived from the original on 2 August 2013. Retrieved 22 March 2014.
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  55. ^ The Roadmakers Eyre Highway. Main Roads Department Western Australia. September 1969.
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  58. ^ a b Whyte, Brendan (2004). "The Diamond in the Desert: The Story of the Giant Readymix Logo on the Nullarbor". The Globe (55): 2. ISSN 0311-3930. Retrieved 7 October 2015 – via State Library of Western Australia access to Informit.
  59. ^ "Work on Eyre Highway". The Beverley Times. 11 March 1966. p. 7. Retrieved 29 January 2016.
  60. ^ Edmonds, Leigh (2008). The Vital Link: The Transition Years 1996–2006. East Perth, WA: Main Roads Western Australia. pp. 24–25, 28. ISBN 978-0-7309-7692-9.
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  62. ^ "Location SA Map viewer with LGA layers". Government of South Australia. Retrieved 16 June 2022.

Further reading edit

  • Main Roads, Western Australia (2006) Distance book: distances to towns and localities in Western Australia East Perth, W.A. Main Roads ISBN 0-7309-7668-8
  • Western Australia. Dept. of Tourism. (1978) Eyre highway traveller survey, 1978 : a study of travellers prior and subsequent to sealing of the highway Perth: Western Australian Dept. of Tourism. ISBN 0-7244-7800-0 (Roads. Use. Australia. Eyre Highway. Reports, surveys (ANB/PRECIS SIN 0061603)
  • Saunders, B. A. (2005). Spirit of the Desert: The Story of Eucla, WA, After the East–West Telegraph Era. Eucla History Project. ISBN 978-0-646-44583-0.

External links edit

Route map

KML is from Wikidata