WA's greatest engineering achievement - The Golden Pipeline

The Golden Pipeline, otherwise known as the Goldfields Water Supply Scheme, the Coolgardie Water Supple Scheme and lastly, the Goldfields and Agricultural Water Supple Scheme transports water from Mundaring Weir to Kalgoorlie.

It was badly needed once the gold rush began in the 1890s. There is little rain and no natural water sources in the goldfields. As such, diseases like Typhoid Fever were running rampant.

A solution was desperately needed and the premier at the time, John Forrest, enlisted an Irish engineer named C.Y O'Connor to devise a scheme. The freshwater pipeline would be nearly 600km long - an engineering feat yet to be achieved worldwide. This project drew large amounts of criticism from opposing politicians and the press. Its predicted cost was equal to the colonies entire annual budget.

This was all too much for O'Connor, and in one of the biggest loses the state would ever see - he took his own life after riding his horse into the ocean south of Fremantle.

The project was ultimately a success and it's a shame he couldn't see its completion. In this video, I will deep dive into the projects planning, construction and numerous upgrades and extensions over the decades. I'll also take you on a grand tour of the entire pipeline. This includes Mundaring Weir, Toorak Hill in Coolgardie, Mount Charlotte Reservoir in Kalgoorlie and the site of eight steam pumping stations. These are found in locations such as Cunderdin, Merredin, Yerbillon, Ghooli, Gilgai and Dedari.

Sources:

https://www.watercorporation.com.au/outages-and-works/ongoing-works/goldfields-pipeline-replacement

https://en.wikipedia.org/wiki/Goldfields_Water_Supply_Scheme

https://en.wikipedia.org/wiki/Mephan_Ferguson

https://trailswa.com.au/trails/trail/golden-pipeline-heritage-trail?print=1

https://www.dcceew.gov.au/parks-heritage/heritage/places/national/goldfields

https://www.goldenpipeline.com.au/

https://www.abc.net.au/news/2025-06-11/goldfields-water-pipeline-capacity-upgrade/105403262

http://museum.wa.gov.au/explore/wa-goldfields/water-arid-land/building-pipeline

https://www.alltrails.com/trail/australia/western-australia/golden-pipeline-heritage-trail-mundaring-to-kalgoorlie

https://inherit.dplh.wa.gov.au/public/inventory/printsinglerecord/92d541a7-7621-4eb1-82cb-569e6573e9ec

https://www.ntwa.com.au/things-to-do/golden-pipeline-heritage-trail/

https://www.watercorporation.com.au/about-us/media-releases/2023/january-2023/cy-oconnors-golden-pipeline-celebrates-120-years

https://www.wa.gov.au/government/announcements/goldfields-water-supply-scheme

https://infrastructurepipeline.org/project/goldfields-pipeline-renewal

https://web.archive.org/web/20240414223052/https://www.smh.com.au/traveller/inspiration/the-golden-pipeline-wa-kalgoorlie-to-mundaring-how-one-pipe-changed-australian-history-20200205-h1ll8w.html

https://www.dcceew.gov.au/sites/default/files/env/pages/72f536d0-007a-4d75-978b-eb7dca71fef9/files/1060076.pdf

https://www.dcceew.gov.au/sites/default/files/env/pages/72f536d0-007a-4d75-978b-eb7dca71fef9/files/1060075.pdf

https://www.environment.gov.au/cgi-bin/ahdb/search.pl?mode=place_detail;place_id=106007

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/92d541a7-7621-4eb1-82cb-569e6573e9ec

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/d2d91482-34f2-4afc-937d-bd47222e4b89

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/d9370f0d-b0d1-4512-9c37-4ea512b1a6e0

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/016faa0f-6ce1-46d9-8a74-f4025e77044e

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/e990338e-59b6-47b6-9d6f-1b73348dd85c

https://www.mundaringweirhotel.com.au/about-us/history/

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/29fb1f61-9dfd-4a53-83c8-f5f79df94efa

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/2cc675ef-9127-422a-becf-3be272a8146f

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/99e7afcb-d66f-49dd-bb04-abb7a94fcdd7

https://inherit.dplh.wa.gov.au/Public/Inventory/Details/4d1ca27b-999a-4e2b-9988-1184348bec23

https://en.wikipedia.org/wiki/Charles_Hoskins

https://slwa.wa.gov.au/pdf/battye/pods/1903/0261.pdf

https://heritage.engineersaustralia.org.au/wiki/Person:Hodgson,_Thomas

https://en.wikipedia.org/wiki/Thomas_Walker_(Australian_politician)

https://www.wa.gov.au/government/media-statements/Court%20Coalition%20Government/Opening-of-Falkirk-Park-Estate%2C-Maylands-19981112

https://en.wikipedia.org/wiki/Mundaring_Weir_railway_line

https://www.railtrails.org.au/trails/mundaring-weir-rail-trail/

https://www.facebook.com/1881HVR/posts/the-mundaring-weir-railway-engineering-triumph-and-historical-legacythe-mundarin/1001379678682920/

https://en.wikipedia.org/wiki/Mundaring_Weir

https://heritage.engineersaustralia.org.au/wiki/Person:Palmer,_Charles

https://www.ghd.com/en-au/projects/sustainable-heritage-restoration-at-ghooli-pump-station

Images:

C. Y. O'Connor

https://purl.slwa.wa.gov.au/slwa_b2103153_2

https://purl.slwa.wa.gov.au/slwa_b1993228_1

https://purl.slwa.wa.gov.au/slwa_b2088241_1

https://purl.slwa.wa.gov.au/slwa_b2126119_1

Charles Yelverton O'Connor as a young man in Dublin, ca.1862

https://purl.slwa.wa.gov.au/slwa_b2136344_1

Albany 1880s

https://purl.slwa.wa.gov.au/slwa_b2121942_1

Cargo sheds and railway at Fremantle Harbour, 1883

https://purl.slwa.wa.gov.au/slwa_b2035049_1

The Public Works Department

https://purl.slwa.wa.gov.au/slwa_b2193601_1

Longitudinal plan of the pipeline showing elevation

https://purl.slwa.wa.gov.au/slwa_b2100667_2

Water condenser, 1890s

https://purl.slwa.wa.gov.au/slwa_b1920110_1

Water condenser at Woolgangie, 1894.

https://purl.slwa.wa.gov.au/slwa_b4538089_3

A.H. Henning, George Leake and J. Howard Taylor outside their offices, Coolgardie, 1894

https://purl.slwa.wa.gov.au/slwa_b3016867_001

First train from Southern Cross to Coolgardie, 1890s

https://purl.slwa.wa.gov.au/slwa_b1922334_1

View from wall site, looking east showing temporary weir, part of the Goldfields water supply scheme, 1898.

https://purl.slwa.wa.gov.au/slwa_b1924258_1

Temporary weir and flume for bypassing water at Mundaring, 1898

https://purl.slwa.wa.gov.au/slwa_b1924251_1

Looking downstream from temporary reservoir

https://purl.slwa.wa.gov.au/slwa_b2115328_1

Looking upstream from excavations

https://purl.slwa.wa.gov.au/slwa_b2115328_2

Excavations for foundations of weir wall, 1898

https://purl.slwa.wa.gov.au/slwa_b1924243_4

Close view of excavations for the wall, 1898

https://purl.slwa.wa.gov.au/slwa_b1926753_2

Camel train hauling water tank through Southern Cross, 1900.

https://purl.slwa.wa.gov.au/slwa_b3789506_1

showing the depth of the footings before pouring (men for scale) 1900

https://purl.slwa.wa.gov.au/slwa_b1926779_1

Concreting of weir wall almost complete, 1900

https://purl.slwa.wa.gov.au/slwa_b1926779_2

Closing locking bars on a 30 pipe, 1901

https://purl.slwa.wa.gov.au/slwa_b2267481_1

Manufacture of water pipes, 1901?

https://purl.slwa.wa.gov.au/slwa_b1926823_1

Goldfields Water Supply Scheme crossing salt lakes - pipes partly covered, ca. 1901

https://purl.slwa.wa.gov.au/slwa_b2960293_001

Pipes ready for use, ca.1901

https://purl.slwa.wa.gov.au/slwa_b2114947_2

Pump Station 2 construction camp 1901

https://purl.slwa.wa.gov.au/slwa_b2302368_4

Humphreys Store, Mundaring Weir Construction Camp, ca.1901

https://purl.slwa.wa.gov.au/slwa_b2267271_1

Humphreys Store, Mundaring Weir Construction Camp, ca.1901

https://purl.slwa.wa.gov.au/slwa_b2267271_1

Humphreys Post Office Cash Store, Mundaring Weir, ca.1901

https://purl.slwa.wa.gov.au/slwa_b2267271_2

Lowering a pipe into the trench, 1902

https://purl.slwa.wa.gov.au/slwa_b2125978_2

George Leake, 1902

https://purl.slwa.wa.gov.au/slwa_b6583042_2

Boxing fun at the Mundaring Weir Construction Camp, ca.1902

https://purl.slwa.wa.gov.au/slwa_b2267288_1

Pump Station 2 reservoir – showing Hodgson? 1902

https://purl.slwa.wa.gov.au/slwa_b2116161_1

Reservoir No.2 Pumping Station, 1902

https://purl.slwa.wa.gov.au/slwa_b2116161_2

Interior of a pumping station, 1902

https://purl.slwa.wa.gov.au/slwa_b1927000_1

Hood over pipeline at Lake Polaris, 1902

https://purl.slwa.wa.gov.au/slwa_b1926996_1

Caulking machine, 1902

https://purl.slwa.wa.gov.au/slwa_b1926991_1

Running lead into a joint, 1902

https://purl.slwa.wa.gov.au/slwa_b1926990_1

Laying pipes, 1902

https://purl.slwa.wa.gov.au/slwa_b1927052_1

Unloading pipes, 1902

https://purl.slwa.wa.gov.au/slwa_b1926964_1

No.2 Pumping Station Mundaring, 1902

https://purl.slwa.wa.gov.au/slwa_b2116165_1

Cunderdin Dam, 1902

https://purl.slwa.wa.gov.au/slwa_b2116463_1

Hand caulking joints, Karalee, August 11th 1902

https://purl.slwa.wa.gov.au/slwa_b2301641_1

1st days pumping, No.1 Pumping Station, 31 Mar. 1902

https://purl.slwa.wa.gov.au/slwa_b2116138_1

Sir John Forrest opens Goldfields Water Supply Scheme, Coolgardie, 1903

https://purl.slwa.wa.gov.au/slwa_b1913661_1

Water entering Mt Charlotte Reservoir at the opening of the Goldfields Water Supply Scheme, 24 January 1903

https://purl.slwa.wa.gov.au/slwa_b2561481_1

History of the goldfields of Coolgardie and Kalgoorlie water supply scheme [1904]: Page 15, diagram of the locking bar pipe

https://purl.slwa.wa.gov.au/slwa_b1269930_53

Cumberland Gold Mine, Norseman, ca. 1905

https://purl.slwa.wa.gov.au/slwa_b2464114_1

No.2 Pumping Station interior 1905

https://purl.slwa.wa.gov.au/slwa_b4614799_1

Sir John Forrest, ca.1905

https://purl.slwa.wa.gov.au/slwa_b1938236_2

Sir John Forrest, 20 March 1909

https://purl.slwa.wa.gov.au/slwa_b2567462_2

Esperance 1911

https://purl.slwa.wa.gov.au/slwa_b7581169_1 1

Thomas Walker (left) and John Scaddan, 1915

https://purl.slwa.wa.gov.au/slwa_b2350019_1

Thomas Walker, 1929

https://purl.slwa.wa.gov.au/slwa_b2511985_1

Mundaring Weir, 1935 (overflowing)

https://purl.slwa.wa.gov.au/slwa_b3388417_1

https://purl.slwa.wa.gov.au/slwa_b3388417_2

https://purl.slwa.wa.gov.au/slwa_b3388417_4

https://purl.slwa.wa.gov.au/slwa_b3388417_6

https://purl.slwa.wa.gov.au/slwa_b3388417_9

No. 1 Pumping Station, Mundaring Weir, 1935 (shows train tracks)

https://purl.slwa.wa.gov.au/slwa_b3388417_12

Mt Charlotte reservoir from the air, 1935

https://purl.slwa.wa.gov.au/slwa_b2383891_1

No.3 Pumping Station staff, 1936

https://purl.slwa.wa.gov.au/slwa_b2114412_1

#7 pump station late 50s (album): https://encore.slwa.wa.gov.au/iii/encore/record/C__Rb2216824__Skaralee__P0%2C12__Orightresult__U__X3?lang=eng&suite=def

Electric Pump Station 1955

https://purl.slwa.wa.gov.au/slwa_b2354975_4

No.7 Pumping Station 1961-1962

https://purl.slwa.wa.gov.au/slwa_b2126013_1

https://purl.slwa.wa.gov.au/slwa_b2126020_1

Interior of Electric Pumping Station 'A' at Mundaring Weir, ca. 1962.

https://purl.slwa.wa.gov.au/slwa_b3760385_1

Pipe manufacturing in Midland

https://collectionswa.net.au/items/5d8b0011-9c55-43c7-833a-818c4356f7ef

Mundaring Weir Locomotive

http://railheritagewa.org.au/archive_scans/displayimage.php?pid=533

kardo mordo

http://railheritagewa.org.au/archive_scans/displayimage.php?pid=20800

tourist train

https://purl.slwa.wa.gov.au/slwa_b6355963_2

Videos:

https://purl.slwa.wa.gov.au/slwa_b1593575_1 14:00

https://youtu.be/9YWj08fZYhA?si=XeN3C43PH6U7Zhpj Ghooli townsite before demolition

https://encore.slwa.wa.gov.au/iii/encore/record/C__Rb1383488__Sgoldfields%20water%20supply%20scheme__P3%2C88__Orightresult__U__X3?lang=eng&suite=def

https://encore.slwa.wa.gov.au/iii/encore/record/C__Rb1536144__Sgoldfields%20water%20supply%20scheme__P5%2C144__Orightresult__U__X3?lang=eng&suite=def

https://purl.slwa.wa.gov.au/slwa_b1397409_1

https://purl.slwa.wa.gov.au/slwa_b1396256_1

Trove

11th December 1898

https://trove.nla.gov.au/newspaper/article/32631269?searchTerm=%22The%20Sunday%20Times%20has%20come%20to%20the%20conclusion%22

"The Sunday Times has come to the conclusion that the whole thing is a sham…”

2nd December 1900

https://trove.nla.gov.au/newspaper/article/32724427?searchTerm=weir

SOUTH PERTH SWEPT OUT TO SEA

9th February 1902

https://trove.nla.gov.au/newspaper/article/32722146?searchTerm=C%20Y%20O%27Connor

Corruption by contract. The Sunday Times. Referred to the construction contract as a “swindle”. They claim O’Connor had flourished on palm grease. The article goes on with all sorts of personal attacks and accusations of corruption. It’s a very wild read in hindsight, knowing just how much of a success the pipeline is.

“We cannot escape the conclusion that O’Connor is a palm-greased humbug who has imposed on this state the first he entered upon his duties.”

28th February 1902

https://trove.nla.gov.au/newspaper/article/203480840?searchTerm=C%20Y%20O%27Connor

O’Connor himself replies stating the facts about the budget blowouts and corruption are incorrect, stating his figures. It should be noted how small this rebuttal is on a page… and is not even posted in the Sunday Times. Couldn’t find such a reply printed there

From my research, this reply was posted in the Western Mail, the West Australian, the Evening Star and the Coolgardie Miner – but not the Sunday Times.

1st March 1902

https://trove.nla.gov.au/newspaper/article/37795492?searchTerm=C%20Y%20O%27Connor

Same statement as above but easier to read. Addresses some inconsistencies but says “There are very many similarly erroneous statements in circulation at present, which I hope to have opportunity of replying to shortly : but this one is so important, and has been so often repeated, that I think it is desirable to reply to it without further delay."

Sadly, O’Connor would not have the opportunity to prove himself further.

1st March 1902

https://trove.nla.gov.au/newspaper/article/37795488?searchTerm=C%20Y%20O%27Connor

to read

10th March 1902

https://trove.nla.gov.au/newspaper/article/80868040?searchTerm=C%20Y%20O%27Connor

His horse was found wandering around scrub by itself. A short search found his body in the water, but close to the shoreline and Robb Jetty. He was 58 years old.

He was involved in railway works in his native Ireland before immigrating to New Zealand

It appears the Sunday Times didn’t even report on his death, but they were quick to turn their attention to Hodgeson. Their comment, as per their own quote in the bellow 3rd of August article six days after his death “At the present we prefer to say nothing even in justification of our past attitude towards the man when living, beyond saying that towards him, as towards all others, we have always been actuated by the highest sense of public duty, which we cannot forget even in the presence of death itself. We are content to wait for the vindication of time.”

They use the commission as an excuse to say O’Connor was now instead lead on by Hodgeson. They referred to him as “Chief Robber”. The article goes on and on to accuse him of all manner of wrong doings, mostly relating to loans. You can find it in my sources if you’d like to read it, follow a link in the description

More articles about O’Connor’s suicide

https://trove.nla.gov.au/newspaper/article/203481346?searchTerm=C%20Y%20O%27Connor

https://trove.nla.gov.au/newspaper/article/218091202?searchTerm=C%20Y%20O%27Connor

3rd August 1902

https://trove.nla.gov.au/newspaper/article/57217650?searchTerm=O%27Connor

They turn their attention to Hodgson, being so bold to claim he caused the death of O’Connor. They finally address his suicide, only to state “His untimely decease was a shock to the community, and there were people despicable enough not to trace his strain of mind and its sad unhinging to the fraudulent Knaves at Work on the pipe track, but to our exposure of them.”

They even admit that O’Connor had shown the newspaper article to Hoskin’s and had told him that it was more than he could bear.

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