Main South Line

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Main South Line
Main South Line and shunting yards at Dunedin.
Info
Type	Toll rail freight
Status	Operational
Locale	South Island, New Zealand
Terminals	Lyttelton Invercargill
Operation
Opened	22 January 1879
Owner	Canterbury Provincial Railways New Zealand Railways Department New Zealand Railways Corporation Tranz Rail ONTRACK
Operator(s)	New Zealand Government Railways Tranz Rail Toll Rail Tranz Scenic
Character	Provincial
Technical
Line length	601.4 km
No. of tracks	One
Gauge	3 ft 6 in (1,067 mm)
Electrification	1929-02-14 - 1970-09-19 (Lyttelton to Christchurch)
Line map Legend 0.00[1] Lyttelton Inter Island ferry 1895 - 1976 Lyttelton 2595 m No. 1 Tunnel Lyttelton 2.90 Heathcote (The Valley) Ferrymead Railway Ferrymead Historic Park 5.93 Woolston (Hillsborough) 7.24 Opawa 8.38 Linwood Christchurch (Madras Street) 9.77 Christchurch (Moorhouse Avenue) 11.96 Addington (Addington Junction) Main North Line Addington Showground 14.31 Middleton (Riccarton) 16.72 Sockburn Riccarton Racecourse Canterbury Jockey Club 18.70 Hornby (Hornby Junction/Southbridge Junction) Southbridge Branch Hornby Industrial Line 20.83 Islington (Factory) Doubled 1909-06-07 Parish's 22.16 Templeton 25.70 Airforce siding 29.53 Weedons Singled 1991-08-04 31.90 Rolleston (Rolleston Junction) Midland Line 38.46 Burnham (Leeston Road) Burnham Military Camp 44.76 Norwood 317 m Selwyn River 46.07 Selwyn 49.24 Dunsandel (Killinchy) Bankside loop 66.94 Bankside 1744 m Rakaia River 67.03 Rakaia (Rakaia Junction) Methven Branch 75.40 Chertsey 84.19 Dromore 88.18 Fairfield Ashburton Saleyards 93.86 Ashburton Ashburton River 97.50 Tinwald (Ashburton South/Tinwald Junction) Mount Somers Branch Plains Vintage Railway 103.85 Winslow (Longbeach Road) 108.38 Windermere 112.51 Hinds 125.28 Ealing (Rangitata North) 610 m Rangitata River 127.01 Rangitata Island Rangitata River 132.68 Rangitata (Rangitata South) Rangitata loop 139.94 Orari 145.98 Winchester 151.98 Temuka 504 m Opihi River 155.76 Arowhenua 158.20 Seadown 164.87 Washdyke (Washdyke Junction) Fairlie Branch 166.84 Smithfield 169.26 Caroline Bay 170.01 Timaru Caledonian Grounds Normanby 181.73 Pareora Pareora River 186.67 St. Andrews 192.83 Otaio 198.88 Makikihi 204.48 Hook 209.39 Studholme (Studholme Junction/Waimate Junction) Waimate Branch 214.28 Willowbridge 218.69 Morven (Waihoa) 230.43 Glenavy (Waitaki North) 914 m Waitaki River 232.96 Waitaki (Waitaki South) 239.99 Hilderthorpe 242.89 Richmond Kurow Branch 245.27 Pukeuri (Pukeuri Junction/Awamoko Junction) 249.00 Racecourse 251.52 Oamaru Show Grounds siding 253.01 Oamaru Oamaru Ngapara and Tokarahi Branches Waiareka Industrial Line 256.76 Waiareka (Waiareka Junction) 258.08 Deborah 261.90 Whitecraig 263.40 Totara 267.06 Teschemakers 268.13 Maheno Waimotu 275.39 Herbert 262 m No. 2 Tunnel (Otepopo) 282.27 Waianakarua 288.47 Hampden Moeraki Branch 293.80 Hillgrove (Moeraki Junction) 298.18 Katiki 305.06 Shag Point Shag Point Branch 309.18 Bushey Dunback and Makareao Branches 314.00 Palmerston 318.20 Wairunga 320.90 Goodwood Tumai 328.50 Waikouaiti 329.73 Beach Street 332.37 Merton 337.22 Puketeraki 157 m No. 3 Tunnel (Puketeraki) 341.46 Seacliff Omimi 346.25 Warrington 348.37 Evansdale 351.64 Waitati 353.53 Michies Crossing 277 m No. 4 Tunnel (Cliffs) Cliffs 358.20 The Gums 359.13 Osborne 360.53 Purakanui 361.20 Mihiwaka 1408 m No. 5 Tunnel (Mihiwaka) 68 m No. 6 Tunnel (Macgregor) daylighted 1971 187 m No. 7 Tunnel (Mansford Bay) 366.23 Port Chalmers [Upper] Port Chalmers Branch 367.76 Sawyers Bay Deviation 1948-06-13 101 m 313 m No. 8 Tunnel (Blanket Bay) Deviation 1931-05-03 371.27 St. Leonards Singled 1984 373.24 Maia (Burkes) 374.56 Ravensbourne Deviation 1925-05-11 377.34 Pelichet Bay 377.88 Dunedin Dunedin 379.99 Kensington 381.26 Caversham 1407 m No. 9 Tunnel (Caversham) Cattleyards 383.73 Burnside (Koremata) Walton Park Branch 385.11 Green Island (Burnside) 386.34 Abbotsford Fernhill Branch 889 m No. 10 Tunnel (Chain Hills) 389.91 Wingatui (Wingatui Junction) Otago Central Railway Taieri Branch Outram Branch 393.01 Mosgiel (Mosgiel Junction) 396.41 Owhiro 400.49 Allanton 407.19 Otokia 411.24 Henley Titri 418.82 Waihola 424.53 Clarendon 428.50 Milburn 434.37 Milton Roxburgh Branch 437.51 Clarksville 442.40 Crichton 447.16 Lovells Flat 454.30 Benhar Kaitangata Line 457.52 Stirling 437 m Clutha River 461.40 Balclutha Catlins River Branch 465.99 Kakapuaka 470.62 Toiro 475.55 Warepa 480.09 Kaihiku 485.49 Waiwera Kuriwao 495.24 Clinton 501.75 Wairuna Tapanui Branch 511.26 Waipahi 517.81 Arthurton 523.28 Pukerau 527.04 Otikerama Waikaka Branch 532.70 McNab 536.03 East Gore Mataura River Waimea Plains Railway 537.22 Gore Gore Racecourse 543.38 Charlton 549.20 Mataura 557.49 Brydone 561.29 Ota Creek Wyndham Branch 563.85 Edendale 569.48 Kamahi (Oteramika) 574.53 Morton Mains 582.71 Woodlands 587.16 Longbush 591.59 Kennington (One Tree Point) 594.42 Mill Road Elles Road Kingston Branch Wairio Branch 601.40 Invercargill Seaward Bush Branch Bluff Branch

The Main South Line, sometimes referred to as part of the South Island Main Trunk Railway, runs south from Lyttelton in New Zealand through Christchurch and down the east coast of the South Island to Invercargill via Dunedin. It is one of the most important railway lines in New Zealand and was one of the first to be built, with construction commencing in the 1860s. At Christchurch it connects with the Main North Line to Picton, the other part of the South Island Main Trunk.

[edit] Construction

Construction of the Main South Line falls into two main sections: from Christchurch through southern Canterbury to Otago's major city of Dunedin; and linking the southern centres of Dunedin and Invercargill, improving communication in southern Otago and large parts of Southland. Construction of the first section of the line began in 1865 and the whole line was completed on 22 January 1879.

[edit] Christchurch-Dunedin Section

The Canterbury provincial government built and opened the first public railway in New Zealand, the Ferrymead Railway, on December 1, 1863. A line south to connect with major southern Canterbury centres, northern Otago and Dunedin was desired, and on May 24, 1865 construction of what was then termed the Canterbury Great South Railway began. The Canterbury Provincial Railways were broad gauge, 1600 mm (5 ft 3 inch), significantly wider than the 1067 mm (3 ft 6 inch) gauge that later became New Zealand's uniform gauge. The first section of the line was opened to Rolleston on October 13, 1866. Beyond Rolleston, three routes south were considered:

• A route well inland to cross major rivers in narrower places.
• A coastal line through fertile country.
• A compromise between the two, following the most direct route and crossing major rivers at more reasonable places than where the coastal route would have crossed.

The third option was chosen and the line was built through an at times relatively barren part of the Canterbury Plains towards Rakaia. By the time the line reached Selwyn in October 1867, the provincial government was so short of finances that construction was temporarily halted.

In 1870 Julius Vogel announced his "Great Public Works Policy" and placed a high priority on the completion of a line between Christchurch and Dunedin. The act of parliament that established the nation's uniform gauge as 1067 mm granted Canterbury an exemption, permitting it to extend its 1600 mm gauge line to Rakaia, which was done on 2 June 1873. Soon after this, the provincial government recognised the need to conform with the uniform gauge and the broad gauge was phased out by 6 March 1876.

Construction not only progressed south from the Christchurch end and north from Dunedin, but also from the intermediate ports of Timaru and Oamaru in both directions. Construction was swift through the 1870s, and on February 4 1876, Christchurch was linked with Timaru. Just under a year later, on February 1, 1877, the line was complete all the way from Christchurch to Oamaru in north Otago.

At the southern end, the Dunedin and Port Chalmers Railway had been opened on January 1 1873, the first 1067 mm gauge line in New Zealand. Most of this line became part of the Main South Line, with construction progressing north from a junction at Sawyers Bay, leaving the final two kilometres to become the Port Chalmers Branch. A difficult hillside climb out of Dunedin was encountered, with construction taking a significant length of time. For this reason, the line from Dunedin met that advancing south from Oamaru at Goodwood, some 310 kilometres south of Christchurch but only 57 kilometres north of Dunedin. The construction south from Oamaru included the creation of two short branch lines along the way, the Moeraki Branch and the Shag Point Branch. On September 7, 1878 the route from Christchurch to Dunedin was opened in its entirety.

[edit] Dunedin-Invercargill Section

In 1871, the Dunedin and Clutha Railway was one of the first authorised railways under Vogel's "Great Public Works Policy", and construction was rapid. This was the first major line constructed to 1067 mm gauge, and the first section south from Dunedin was opened to Abbotsford on July 1, 1874. On September 1, 1875 the line opened to Balclutha, the major town of the lower Clutha River region, 84 kilometres from Dunedin.

At the Invercargill end, construction was swift, and Gore was reached on 30 August 1875. From here, undulating countryside necessitated heavier earthworks to Balclutha, completing the route from Dunedin to Invercargill, and construction was completed on 22 January 1879. As the line from Dunedin to Christchurch had been finished on 7 September 1878, this created a rail link all the way from Invercargill to Christchurch and completed the Main South Line.

[edit] Operation

[edit] Passenger services

For much of New Zealand's railway history, the passenger service from Christchurch to Dunedin was the flagship of the railway. When trains began to run between Christchurch and Invercargill in a day in November 1904, the main passenger services on the Dunedin-Invercargill section were essentially an extension of the Christchurch-Dunedin trains. When the line was completed in the late 19th century, trains took 11 hours to travel from Christchurch to Dunedin and were usually headed by steam engines of the original J class or the Rogers K class, except on the hilly section south of Oamaru where the T class was used. In 1906, the A class was introduced and maintained an eight-hour schedule, though they soon handed over duties to the superheated A^B class of 1915.

The introduction of the J class and J^A class in 1939 and 1946 respectively was the final development in steam motive power, and they took just 7 hours 9 minutes to haul the "South Island Limited" express from Christchurch to Dunedin. During their heyday, these steam-hauled expresses were famous for the speeds they attained across the Canterbury Plains along a section of track near Rakaia nicknamed the "racetrack". They were replaced on 1 December 1970 by the Southerner, headed by DJ class diesel-electric locomotives. Steam engines continued to operate Friday and Sunday night expresses, and they were the last steam passenger trains in New Zealand. This makes New Zealand unusual, as steam saw out its final days on quiet, unimportant branch lines in most countries, while the last regular services operated by New Zealand's steam engines were prominent express passenger trains. This was because the trains' carriages were steam heated, but heating technology evolved and on 26 October 1971, an express from Christchurch to Invercargill became the last regular service in New Zealand to be hauled by a steam locomotive.

The Southerner ran to an even faster schedule than the "South Island Limited". The journey between Christchurch and Dunedin was initially cut to just 6 hours 14 minutes, and by utilising two DJs north of Oamaru and three south, the schedule was further cut to 5 hours 55 minutes. Part of these gains resulted from the Southerner not carrying mail, while the South Island Limited was slowed down by handling mail.

When many branch lines were open, local passenger services and "mixed trains" of both passengers and freight were a regular sight on the Main South Line as they made their way to their branch destination, but such trains were progressively cancelled during the 20th century and ceased to exist entirely a number of decades ago. An evening railcar service operated in the middle of the 20th century and took 6 hours 10 minutes between Christchurch and Dunedin: it was cancelled in April 1976. The Main South Line was used in Dunedin to provide commuter services both north to Port Chalmers and south to Mosgiel. In the days of steam, A^B, B, and B^A classes operated suburban trains, though railcars were used on occasion until 1967. In 1968 commuter services were dieselised and operated by the DJ class, or sometimes the DI class and DSC class. The Port Chalmers services lasted 11 more years and were cancelled in late 1979, followed by the Mosgiel services in December 1982. Between 1908 and 1914, the line to Mosgiel was double-tracked because of the commuter traffic, but now it has been converted back to single track.

Recently, the Main South Line lost the last passenger service that utilised nearly all of the line's length. On 10 February 2002, the Southerner was cancelled as it was claimed to no longer be economic to operate. Now only two regular passenger services utilise small portions of the Main South Line. The northern part between Christchurch and Rolleston is used by the TranzAlpine before it heads along the Midland Line to Greymouth, and the only passenger trains to now use the beautiful Dunedin station are heritage services operated by the Taieri Gorge Railway.

[edit] Freight services

Until the 1960s, there was little focus on long-distance freight between the major centres. Instead, the Main South Line was used to feed its many branch lines, with the majority of goods trains being local services between regional areas and major centres or harbours in Christchurch (Lyttelton), Timaru, Oamaru, Dunedin (Port Chalmers), and Invercargill (Bluff). A good example of how regionalised this traffic was comes from the Dunedin-Invercargill portion of the line. North of Clinton were five branches whose traffic essentially ran to and from Dunedin/Port Chalmers, while south of Clinton were four branches whose traffic essentially ran to or from Invercargill/Bluff. As this short-distance local traffic declined in the 1950s and 1960s and branch lines closed, long-distance freight increased, with through services between the major centres rising to prominence. The concentration of exports on fewer ports and the development of containerisation spurred on long-distance freight, and the first freight train from Christchurch to Invercargill was introduced in December 1970 on a 16-hour schedule.

Today, to meet the demands of modern business and to compete with road transportation, operations continue to be enhanced, and much traffic comes in the form of bulk cargo from large customers. Although passenger services no longer exist, the future of long-distance bulk freight on the line appears secure and the Main South Line is an important link in New Zealand's transport infrastructure.

[edit] List of secondary and branch lines

Many secondary and branch lines had junctions with the Main South Line. Below is a list of these lines, all of which are closed unless otherwise noted.

• Bluff Branch (open for freight)
• Catlins River Branch (first 4 km remain open as the Finegand Industrial Siding)
• Dunback and Makareao Branches
• Fairlie Branch
• Fernhill Branch
• Kaitangata Line
• Kingston Branch (the initial portion remains open for freight as part of the Wairio Branch)
• Kurow Branch
• Methven Branch
• Midland Line (Rolleston to Greymouth, used for both freight and passenger services)
• Moeraki Branch
• Mount Somers Branch
• Ngapara and Tokarahi Branches
• Ocean Beach Branch
• Otago Central Railway (first 64 kilometres remain open for passengers: initial four kilometres are an industrial spur and the remaining 60 are owned and preserved by the Taieri Gorge Railway)
• Outram Branch
• Port Chalmers Branch (open for freight)
• Roxburgh Branch
• Shag Point Branch
• Southbridge Branch (initial portion remains for freight as the Hornby Industrial Line)
• Tapanui Branch
• Tokanui Branch
• Waikaka Branch
• Waimate Branch
• Waimea Plains Railway
• Walton Park Branch
• Wyndham Branch

[edit] External links

• Page dedicated to the history of The Southerner

[edit] References

[edit] Books

• Churchman, Geoffrey B., and Hurst, Tony; The Railways of New Zealand: A Journey Through History, HarperCollins Publishers (New Zealand), 1991 reprint
• Leitch, David; Steam, Steel And Splendour, HarperCollins Publishers (New Zealand), 1994
• Leitch, David, and Scott, Brian; Exploring New Zealand's Ghost Railways, Grantham House, 1998 revised edition