construction workers closing site with hazard tape

Victorian Government shuts down construction

Other areas include the City of Ballarat, City of Greater Geelong, Surf Coast Shire and Mitchell Shire.  The shutdown was effective from 11.59 pm on Monday,  September 20 and involves complete site closures, with exemptions only available to workers responding to emergencies or performing urgent and essential work. An amnesty will be put in place Read More

Artist impression of the Torrens to Darlington project

Enabling works underway on T2D Project

The Torrens to Darlington (T2D) Project is a 10.5 km north-south corridor that will complete the 78 km non-stop connection between Gawler and Old Noarlunga.   Jointly funded by the Australian and SA Governments, the project is estimated to reach $9.9 billion.  Yesterday, the Premier of SA announced that works had started at the southern Read More

CRL under Auckland city

Works on hold for Auckland supercity

Watercare commenced works on the Central Interceptor project in Māngere last month, with the 14.7 km sewer tunnel to run from Grey Lynn to the Māngere Wastewater Treatment Plant and expected to be completed in 2025.  Once completed, it will be the longest bored wastewater tunnel in New Zealand.  According to the Executive Program Director Read More


Third TBM joins METRONET project

Western Australia Minister for Transport, Planning and Ports Rita Saffioti last week announced the arrival of tunnel boring machine (TBM) ‘Jana’ on the METRONET Thornlie-Cockburn Link Project.  TBMs ‘Grace’ and ‘Sandy’ have already been busy at work constructing the Airport Line underground. Jana will be used to drill twin 100 m tunnels under the freight Read More

Auckland city skyline

Lockdown stalls City Rail Link TBM

The developing COVID-19 situation in New Zealand has slowed down TBM progress on Auckland’s City Rail Link (CRL).  After the Prime Minister reinstated level 4 lockdown restrictions last Wednesday 18 August, City Rail confirmed all construction would be immediately suspended for at least seven days.  CRL Chief Executive Officer Dr Sean Sweeney said that the Read More

Tunnel boring machine

Cross River Rail TBMs to reunite under Roma Street

‘Else’ – the first of the two TBMs –  broke through to Roma Street Station last Wednesday after boring through a wall of hard rock. The second TBM, ‘Merle’, is expected to reach her destination today, thereby completing the twin tunnel connection between Roma Street and Woolloongabba Cross River Rail stations. In a joint statement Read More

TBM breakthrough at Roma Street

Cross River Rail TBM breaks through

The conditions beneath the Roma Street contained areas of hard rock, and TBM ‘Else’ had to bore through a rock wall in order to penetrate the cavern. Else has now excavated around 105,000 m3 of spoil between Woolloongabba and Roma Street. Transport and Main Roads Minister Mark Bailey said Cross River Rail’s future Woolloongabba and Read More

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Period Supply Contract for Horizontal Directional Drilling Services Issued by: Clarence Valley Council Closing Date: 27 August 2021 Location: New South Wales Description: Council is seeking tenders from appropriately qualified and experienced tenderers to be placed on a panel of service providers for provision of horizontal directional drilling services. The panel will be for the Read More

Roadheader at Town Hall Station

Roadheader breaks through at Town Hall Station

On 5 August, one roadheader broke through at Town Hall Station, completing the first level of the rail tunnels that will run alongside the station’s platform. The roadheader will now dig another 7 m to complete the tunnels as major excavation for all five new underground stations near completion. According to Metro Tunnel’s official website, Read More

sydney metro

Western Sydney Airport Metro approved

In late July, the Sydney Metro Western Sydney Airport project received planning approval from the New South Wales Government.   Major construction is scheduled to commence in the coming months, with tunnelling contracts awarded by the end of the year.   A total of 23 km of driverless metro will service western Sydney and the new Western Sydney International Airport between St Marys Station and the future Read More

Rangedale Hi-Rail hits Melbourne underground

Rangedale is one of the market leaders in drain construction, maintenance and repair across Victoria and New South Wales.  This week, the company completed specialised drain cleaning works in Melbourne’s underbelly, with its industrial Hi-Rail Combination unit used to clear and clean pipes on the Metrorail tunnels under the operation of highly trained personnel.  Alongside drain cleaning, the Read More

Metro Tunnel TBM retrieval underway

The TBMs – named ‘Meg’, ‘Alice’, ‘Millie’ and ‘Joan’ – are being carefully dismantled before being transported back through the tunnels.   The machines are Herrenknecht Mixshields, running 120 m long and featuring cutterheads with diameters of 7.2 m. The machines can bore through a variety of ground conditions, from hard rock to sand, and use slurry as an excavation medium, for both Read More

Cross River Rail TBMs reach halfway point

Named ‘Else’ and ‘Merle’ , the TBMs reached their halfway point on Monday 26 July. They are now 30 m below King George Square on their way to the new underground cavern at Roma St Station.   The Cross River Rail is a new 10.2 km rail line running from  Brisbane’s Dutton Park to Bowen Hills.    The new rail line Read More

SA unveils T2D launch site

The 10.5 km T2D project is the final piece of the multi-billion-dollar 78 km North-South Corridor which will help unlock Adelaide’s transport network by providing a non-stop connection between Gawler and Old Noarlunga, with links to the port and airport precincts. This week, the SA Government revealed a purpose-built site near Tonsley Boulevard will be Read More

CIMIC wins preferred bidder status for North East Link

The project will include three-lane twin tunnels approximately 6 km in length which will aim to close the missing link in Melbourne’s freeway network. It will connect the Metropolitan ring road (M80) and the Eastern Freeway (M3), completing a ring road around Melbourne that includes the Monash Freeway (M1). CIMIC’s umbrella includes Pacific Partnerships, CPB Read More

The way to go in WA

With a primary objective of protecting the new water main during operations, a lower profile kwik-ZIP spacer model was used – demonstrating the manufacturer’s versatility.   kwik-ZIP® General Manager Paul Jeffreys said the project involved abandoned gas mains with numerous internal protrusions, such as joints and welds.   Because of this, there was significant concern that the PE carrier pipes for Read More


Harbour tunnel becomes priority project

The Western Harbour Tunnel and Warringah Freeway Upgrade was added to the Infrastructure Priority List as a Priority Project last month, with the proposal from the New South Wales Government involving the construction of a 6.5 km twin three-lane motorway from the Rozelle Interchange to the Warringah Freeway near North Sydney.  The Warringah Freeway between the northern end of the Sydney Read More

Metro Tunnel TBMs hit finish line

The machines had been at work beneath Melbourne for 20 months digging the 6.3 m high, 9 km long tunnels, with TBM ‘Meg’ the last to arrive at the new Town Hall Station last week.  TBMs ‘Millie’, ‘Alice’, and ‘Joan’ had all arrived at the site earlier in May.   The machines are all Herrenknecht Mixshields with a 7.2 Read More

Cross River Rail concrete on track

Cross River Rail reported more than half of the 25,000 concrete segments required to line the twin tunnels beneath the Brisbane River and the central business district have been produced.   The segments are loaded into the project’s TBMs, which installs them in rings of six as they move along with tunnel, with each ring made up Read More

Cross River Rail launches TBM tracker

TBMs ‘Else’ and ‘Merle’ are currently excavating the tunnels from Woolloongabba north towards Albert Street, while two 115 t roadheaders are excavating the tunnels in the opposite direction from Woolloongabba towards Boggo Road.  The TBMs each weigh 1,350 t, are 165 m long and are lining the tunnel walls with 25,000 concrete segments as they excavate.   Cross River Rail’s new online TBM Tracker Read More

NSW proposes Australia’s longest road tunnel

This week the state government announced it is examining the prospect of connecting two proposed tunnels into a longer tunnel as part of the Greater Western Highway upgrade between Katoomba and Lithgow.  NSW Minister for Regional Transport and Roads Paul Toole said linking the two tunnels already determined for Blackheath and Mount Victoria would deliver a more reliable connection through Read More

Metro Tunnel TBMs on final drives

Tunnel Boring Machine (TBM) Alice has now passed beneath the Yarra River and is now closing in on the Town Hall Station site as part of her final tunnelling drive.   More than 1.6 km of the 1.8 km tunnel have now been completed, with tunnelling and TBM retrieval works to continue throughout May.  Work is also continuing on the future Anzac Read More

WATCH: TBM under Yarra River

The Metro Tunnel TBMs are tunnelling 120 m underneath the Yarra as part of their final stretch towards Town Hall Station at depths as low as 12 m beneath the riverbed.  The video details the extensive planning behind the operations to ensure there would be no disruptions caused above ground.  Project operators estimate it will take approximately two weeks to Read More

TBM digs 12m below Yarra

TBM Millie is now 12 m below the bed of the river on its way to the new Town Hall Station, while TBM Alice is currently digging a parallel tunnel from the Anzac Station site. Project operators estimate it will take approximately two weeks to cross under the Yarra, after which both TBMs will travel Read More


Sydney Metro West receives major planning approvals

The Sydney Metro West project concept, from Westmead to the Sydney CBD, as well as station excavation and tunnelling between Westmead and the Bays was granted planning approval this week, which New South Wales Minister for Planning and Public Spaces Rob Stokes called a huge step forward. “This city-shaping project will have a target travel Read More

Metro Tunnel hits milestone

The works took more than two years to complete and included more than 7,700 m3 of concrete and nearly 8,000 t of reinforced steel. Work is now underway to connect the new entrance with the Metro Tunnel’s twin 9km tunnels. All four of the project’s tunnel boring machines are currently digging underground, with approximately three Read More