This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Zig Zag Railway" – news · newspapers · books · scholar · JSTOR (May 2023) (Learn how and when to remove this message)

Zig Zag Railway
BB18¼ 1072 City of Lithgow at Top Points
Locale	Lithgow, New South Wales
Terminus	Clarence, Bottom Points
Commercial operations
Name	New South Wales Government Railways Main Western
Built by	Patrick Higgins (contractor for NSWGR)
Original gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Preserved operations
Operated by	Zig Zag Railway Cooperative
Stations	Clarence Mt Sinai Halt No1 Viaduct Top Points Cockerton Bottom Points
Length	7 kilometres (4.3 mi)
Preserved gauge	3 ft 6 in (1,067 mm)
Commercial history
Opened	18 October 1869
Closed	16 October 1910
Preserved era	18 October 1975 – present
Preservation history
1975	Bottom Points to Top Points section opened 18 October
1987	Top Points to Mt Sinai section opened 4 April
1988	Mt Sinai to Clarence section opened 29 October
2012	Operation suspended
2013	Badly damaged by bushfires
2016	Limited train movements resume (trackwork)
2019	Badly damaged by bushfires
2020	Limited movements recommence (Work trains)
2023	Operations resume
Website
www.zigzagrailway.com.au

The Zig Zag Railway is an Australian heritage railway, situated near Lithgow, New South Wales. It was opened by the not-for-profit Zig Zag Railway Co-op as an unpaid volunteer-staffed heritage railway in October 1975, using the alignment of the Lithgow Zig Zag line that formed part of the Main Western line between 1869 and 1910. The line climbs the western flank of the Blue Mountains, using railway zig zags to gain height.

Operation of the heritage railway was suspended in 2012 following accreditation issues with the Government of New South Wales. The railway was aiming to resume services in October 2013, but was then severely damaged during the 2013 NSW bushfires and then subsequently by torrential rain. Repairs and trials of restored rail vehicles and track commenced in August 2016 and it was planned to re-commence limited heritage operations in 2019, until the 2019–2020 bushfires damaged key infrastructure. The COVID-19 pandemic further delayed restoration. Heritage train services resumed on 27 May 2023.

History

Construction and abandonment

An historical view of the Zig Zag Railway line with Top Road and number 1 viaduct in the foreground, Middle Road and viaducts numbers 2 & 3, and Bottom Road still part of the Main Western line to the right

Much the same view more than a century later, not long before the 2013 NSW bushfires

The Lithgow Zig Zag was constructed as part of the Main Western line and opened on the 19 October 1869. Between Lithgow and Clarence, the Main Western line needed to climb the western flank of the Blue Mountains, overcoming a vertical distance of 550 ft (170 m). The alternative eventually decided upon required the use of two railway zig zags where all trains had to reverse. The line had a ruling grade of 1:42 (~2.38%) on three inclines known as the Top Road (above Top Points), Middle Road (between the two zig zags) and Bottom Road (below Bottom Points). The line included several short tunnels and some viaducts.^[1]

The steep gradients and need to reverse trains proved to be a serious bottleneck to traffic on the line, and there were several accidents with runaway trains at the reversing points. Attempts were made to mitigate this by realigning the track and relocating and extending the reversing stations, but the problems continued. As early as 1885, plans for alleviating the Zig Zag problem involved the construction of a 2 mi (3.2 km) long tunnel. This was said to provide little gain for the cost proposed.^[2] In 1908, work began on the Ten Tunnels Deviation, a double-tracked route that by-passed the two reversing stations and the upper two inclines, although retaining the Bottom Road with its 1:42 gradient. Once this was completed, the by-passed section was closed in October 1910.^[1]

Lithgow Valley Reserve

The main railway corridor of the Great Zig Zag Railway forms part of a Reserve administered by Government, it is administered by a trust made up of volunteers. The area was proclaimed a public reserve in 1881 which was one of the first public reserves in NSW, originally supervised by Blaxland Shire Council. In 1946, it was added to the Trust that administered Hassan's Walls, the trust opened Top Road to road traffic in 1949. In 1964, it added the picnic shelter under number 1 Viaduct, naming it in recognition of H K Cockerton Place. Cockerton served as a trustee for 17 years, instigating the development of the reserve, in 1969, the Reserve was transferred to Lithgow Council. In 1990, the Reserve was placed in the Trust of the Zig Zag Railway Co-Op.

Revival and preservation

v t e Lithgow Zig Zag routes
Legend
to Sydney Central Bell Dargans Deviation original route Newnes Junction Clarence Coillery Balloon Loop Ten Tunnels Deviation Newnes line Newnes Junction (original) Dargans Deviation Clarence (3rd) ( 2nd & 4th ) Clarence Clarence (1st) No. 1 Tunnel ( 1,115 m 3,658 ft ) Summit No. 2 Tunnel Clarence Tunnel No. 3 Tunnel No. 4 Tunnel No. 5 Tunnel No. 6 Tunnel No. 7 Tunnel No. 8 Tunnel No. 9 Tunnel No. 10 Tunnel Ten Tunnels Deviation Mt. Sinai Halt Bottom Points Edgecombe Siding Zig Zag Bottom Points Depot Mileage 92.1 Junction Belmore (Zig Zag) Tunnel No. 1 Viaduct Halt Cockerton Halt No. 1 Viaduct No. 3 Viaduct No. 2 Viaduct Top Points Eskbank Lithgow to Dubbo and Bourke

In 1967, as the end of steam operation in New South Wales approached, a group of steam enthusiasts headed by Ian Thornton were keen to establish an operating steam museum. The Lithgow Zig Zag was chosen as a suitable site based on its accessibility by day-trippers from Sydney, its scenery, abundant water supplies and availability of coal. In March 1969, negotiations commenced with the Zig Zag Trust, the Department of Lands and the Lithgow City Council.^[3][4]

In 1972, the Lithgow Switchback Railway Co-op Limited was formed and this became the Zig Zag Railway Co-operative Limited in 1974.^[5] At this time, the Commissioner for Railways only made heritage locomotives and rolling stock available to the officially sponsored New South Wales Rail Transport Museum. Thus the line was relaid to 1,067 mm (3 ft 6 in) narrow gauge as used in Queensland, South Australia and Tasmania rather than the New South Wales 1,435 mm (4 ft 8+1⁄2 in) to allow locomotives and carriages to be procured from these states.^[4]

In 1975, the new track was complete on the Middle Road between Bottom Points and Top Points. On 29 August 1975 1046 operated the first journey from Bottom Points to Top Points.^[6][7] Services commenced on 18 October 1975, the 106th anniversary of the original opening.^[4]

On 4 April 1987, the line was opened along the Top Road between Top Points and Mt Sinai Halt and on 29 October 1988, through to Clarence.^[8] A further extension to meet the Main Western line at Newnes Junction has been started with track laid for 50% of the distance.

On 25 January 1996, locomotive 1072 derailed after hitting maintenance equipment. No injuries are known to be reported.^{[9][better source needed]}

Closure and bushfire damage

Accreditation and collision

In August 2006, the Independent Transport Safety Regulator (ITSR), an agency of the Government of New South Wales that regulates safety and accredits railway operators, identified the Zig Zag Railway (and one other operator) as a "higher risk" isolated line operator because of its complex operations and high numbers of passenger trips. The ITSR gave Zig Zag Co-operative additional time to develop a safety improvement plan in order to comply with the Act, that took effect for all heritage railway operators from 1 January 2007.^[10][11]

On 1 April 2011, an incident occurred resulting in a collision between a maintenance vehicle and a two-car rail motor, between Clarence and Top Points stations. Travelling in opposite directions and carrying one passenger (in the Hy-rail) plus one driver of each rail vehicle, two injuries were sustained. A subsequent investigation by the Office of Transport Safety Investigations found that the principal error was miscommunication. The inquiry also identified that a number of other factors were found to have contributed to the collision.^[12]

From March 2012, only railcars could be operated and in June 2012, the ITSR ordered a cessation of all services until a number of safety issues were addressed.^[13] The railway was then aiming to resume services in October 2013.^[14]

2013 bushfire and storm damage

The railway was severely damaged by the 'State Mine Fire', part of the October 2013 bushfires.^[15] The railway suffered millions of dollars of damage which included ten passenger carriages and four accommodation carriages. The most extensive damage caused by the fires was at Bottom Points workshop where most of the north side was destroyed. This included the spare parts stores, offices and most of the machine shop. Electrical equipment to operate signals was totally destroyed as was the repeater tower for the safety radio communication system and the internal telephone lines and exchange. One thousand new railway sleepers were also lost as was the caretaker's converted accommodation carriage. Locomotive 1047 which had been stored behind Bottom Points workshop was also badly damaged. Much of the damage was suffered by original railway equipment from the 1920s. At that time, it was estimated that the railway would take a full year to recover from the State Mine Fire. Heavy rain then caused subsequent damage to an embankment near the western end of the Clarence tunnel, the platform area at Top Points, and to the run around loop track at Bottom Points.^[16]

In September 2017, restoration of vehicles and infrastructure were still being undertaken and hopes were for recommencement of services as soon as safe and practical. Due to the complexity of repairs and reinstatement infrastructure, the re-opening was hoped for late 2019, but all hopes were dashed with the damage from the 2019 bushfires.^[17] The railway’s website and Facebook page both have updates on the redevelopment.^[18][19]

2019 bushfire damage and ongoing repairs

In late December 2019, the Zig Zag Railway was hit by the Gospers Mountain bushfire. The station buildings and most of the rolling stock survived with the exception of a few already vandalised carriages. The toilet block, storage areas, communications hut, signalling equipment, water and power supplies and main office with the past 45 years of records were all destroyed along with an estimated 1500 sleepers all of which pushed the reopening a few years back.^[20]

On 24 July 2020, diesel locomotive 1004 became the first locomotive to travel from Bottom Points Station to Clarence station since the cessation of steam services in March 2012. Works trains had previously only operated on the Middle Road (Bottom Points to Top Points) due to the extensive damage at Clarence caused by the 2013 embankment slip.^[21]

2020s

In March 2020, the railway was well into the project of making the rail corridor safe when storms struck Zig Zag, this impacted the return to service the railway was heading for. The ability of workers and volunteers to come onsite was impacted by COVID-19 restrictions in NSW between March and September 2020 and June and November 2021, slowing the progress of work on the railway. Additionally, the railway has been repeatedly affected by weather events, such as storms in January and March 2022. The line reopened on 27 May 2023.^[22]

The railway celebrated its reopening and 154th anniversary on 21 October 2023 with a tape-cutting ceremony, pre-booked steam train rides, local performances, displays, heritage buses and market stalls.^[23][24]

Former schedule

Prior to the suspension of services in 2012, the Zig Zag Railways was unique in New South Wales being the only heritage operator to run every day except Christmas Day. On Mondays, Tuesdays, Thursdays, Fridays and Sundays railmotors were operated. Every Wednesday, Saturday and Sunday a steam locomotive with train would operate with Sunday having a two train timetable. Special events included Day Out with Thomas and a Wizards Express event held a couple of times per year. During most school holidays, steam services ran every day. Passengers could join the service at Bottom Points where Zig Zag railway station is served by NSW TrainLink services from Sydney or at Clarence which is adjacent to the Bells Line of Road.

Locomotives and rolling stock

The locomotives and rolling stock on the Zig Zag Railway have been mainly sourced from Queensland Railways, but there are also items from the South Australian Railways and Emu Bay Railway.

The collection includes Queensland Railways 2000 class rail motors, Queensland Railways Evans carriages, Emu Bay Railway diesel locomotives, South Australian Railways end platform carriages and several older carriages and a considerable number of freight style vehicles that are used for demonstration trains, fire fighting, and track and infrastructure repair and maintenance.

Steam locomotives

Number & Name	Image	Description	Status	Livery	Notes
218A The Yank		QR 2-8-2 AC16	Operational	Green (Previously Black & Silver)	Operated from 2008 until 2011 before mechanical overhaul. Operational since May 2021.
934		QR 4-8-0 Class C17	Under overhaul	Red	Operated from 1986 until 2010, awaiting full overhaul.
966 City of Rockhampton		QR 4-8-0 Class C17	Stored	Black	Stored at Clarence.
1046		QR 4-6-4T DD17	Out of service	Blue	Operated from 1975 until 1983, dismantled with parts stored in various places around the railway.
1047		QR 4-6-4T DD17	Stored, awaiting restoration	Green (Previously Blue)	Operated from 1978 until 1998, stored awaiting restoration, damaged by 2013 fires.
1049 Stormin' Normin		QR 4-6-4T DD17	Stored, awaiting overhaul	Blue	Operated from 1994 until 2011, stored awaiting major boiler overhaul.
1072 City of Lithgow		QR 4-6-2 BB18¼	Stored, awaiting overhaul	Black (Previously Dark Green)	Operated from 1980 until 2011, stored awaiting mechanical overhaul.
402		SAR 4‑8‑2+2‑8‑4 Garratt 400 class	Stored	Green	Stored at Bottom Points.