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Recordbreaking Ritchie Bros’ auction

Recordbreaking Ritchie Bros’ auction

More than 1,220 bidders from 72 countries registered to participate in the auction in Caorso, Italy on 10.12.2013: a record for the Italian branch. More Information

Eight Terratec TBMs in Delhi

Eight Terratec TBMs in Delhi

Terratec has announced delivery of the final two TBMs of eight ordered for Delhi Metro Phase 3. More Information

Black River launch

Black River launch

Near the banks of the Black River in Ohio, a 7.0 m-diameter Robbins Double Shield TBM and continuous conveyor system are starting up. More Information

First blast in Wolf access

Excavation work by Swietelsky construction company has started on the access tunnel in Wolf, near Steinach, Austria with the first blast on December 4th, St. Barbara's Day. More Information

Morazzone breakthrough

Breakthrough of the east tube of the 2,167m Morazzone tunnel Pedemontana Lombarda was achieved on 04.12.2013 to complete the tunneling works. More Information

Pale breakthrough

Pale breakthrough

On 04.12.2013 final breakthrough was achieved on the Pale tunnel (2,319 m - 2,045 m) in Scopoli, Foligno municipality on SS77 Val di Chienti in Italy. More Information

Bypass for Palermo railway

Bypass for Palermo railway

On 02.12.2013 details were released about the 5 km-long bypass Section B for the railway network in Palermo. More Information

MineARC picks up safety award

MineARC picks up safety award

The international tunnelling award for safety initiative of the year was accepted in London by Thomas Horton of MineARC Systems for its emergency refuge chambers engineered for tunnels under construction. More Information

Aker sells TBM technology to CRTE

Aker Solutions has sold its German Aker Wirth tunnel-boring and shaft-boring technology to China Railway Tunneling Equipment Co. Ltd (CRTE). More Information

Huge Ritchie Bros. auction for Caorso

Huge Ritchie Bros. auction for Caorso

More than a hundred businesses have already supplied 1,020 heavy equipment items and trucks for Ritchie Bros’ final Caorso auction of 2013, to be held on Tuesday December 10, 2013. More Information

Robbins TBMs in Singapore

Robbins TBMs in Singapore

Downtown Line Stage 3 Contract 927 in Singapore involves the construction of two mainline tunnels by TBM, a breakdown siding tunnel by shotcrete lining, and the Bedok Reservoir station. More Information

Singapore expressway opens soon

The Land Transport Authority (LTA) will open the new Marina Coastal Expressway (MCE) from 09.00h on Sunday, 29.12.2013. The 5 km-long MCE, Singapore’s tenth expressway, More Information

University Link to open early

Sound Transit will open the University Link light rail extension by March, 2016, some six months earlier than previously scheduled. More Information

Prado Sud tunnel opens

Prado Sud, a consortium led by Vinci Concessions with Eiffage, inaugurated the 1.5 km-long Prado Sud tunnel in Marseille on 15.11.2013. More Information

Colle di Tenda start

The JV Grandi Lavori Fincosit/Toto Costruzioni Generali has started construction of the new Colle di Tenda tunnel on SS 20 Valle di Roja and Colle di Tenda in Piemonte. More Information

Arabian conference programme

The Arabian tunneling conference and exhibition takes place in Dubai, UAE December 10-11 More Information

OFTA from Robbins

OFTA from Robbins

Onsite First Time Assembly was developed by Robbins for the Niagara Tunnel project, which used a 14.4 m-diameter hard rock TBM. OFTA reduces delivery schedules and overall costs significantly. More Information

Pipe systems in tunnels

Tunnels present designers and engineers with particular challenges when it comes to installing pipework. Read a paper prepared by Dave Hudson, More Information

InterTunnel Russia 2014

InterTunnel Russia will take place 14-16 May at VVC All Russia Exhibition Centre, Moscow - a new venue for 2014. More Information

TBM starts Maddalena survey tunnel

TBM starts Maddalena survey tunnel

On 12.11.2013 TBM excavation started for the Maddalena survey tunnel in Chiomonte on the Lyon-Turin line. More Information

Hong Kong sewage treatment

Hong Kong sewage treatment

On 08.11.2013 the breakthrough ceremony took place for Hong Kong’s Harbour Area Treatment Scheme (HATS) Stage 2A sewage tunnel (North Point-Wan Chai section), marking a new milestone for the project More Information

EnviroLAV from MineARC

EnviroLAV from MineARC

The powerless EnviroLAV is a robust, self-contained, corrosion resistant steel toilet system that is easy to operate and maintain. More Information

Zitron sponsors tunnelbuilder.es

Zitron sponsors tunnelbuilder.es

As the largest Spanish manufacturer of mining and tunnelling ventilation fans, Zitron has been a mainstream advertiser at tunnelbuilder.com More Information

Clean water for Mumbai

Clean water for Mumbai

A rapid Robbins 6.25 m-diameter main beam TBM is speeding up the provision of clean water to 20.5 million residents of Mumbai, India. More Information

Metro construction in Santiago

On 09.11.2013 construction started on the Los Leones station of Santiago metro Line 6. More Information

Transmission line Sorgente-Rizziconi

Transmission line Sorgente-Rizziconi

The underground link between the Favazzina arrival location of the submarine cables and the Scilla power station is key to the new 380 kV AC double-circuit Sorgente-Rizziconi transmission line to link Sicily and Calabria. More Information

World TBM records

For a comprehensive list of TBM records by diameter and type visit More Information

Sandvik jumbos for Tampere

Sandvik jumbos for Tampere

Top Finnish infrastructure company Lemminkainen has chosen Tamrock DT1131i jumbos to excavate the 2.3 km-long Rantavayla tunnel on its Lakeside Route project in Tampere More Information

2nd Eastern European Tunnelling Conference

Abstract submission deadline for next year’s Eastern European Tunnelling Conference is 30.11.2013. More Information

Breakthrough for Crossrail

Breakthrough for Crossrail

On 07.11.2013 Crossrail reached another important milestone as 1,000 t TBM Elizabeth broke into Stepney Green Cavern, one of Europe’s largest mined caverns, in the East End of London. More Information

Fehmarnbelt pre-bid conference

From 12-15th November, Femern A/S will gather together around 125 representatives from the nine consortia that have pre-qualified to bid for work on the immersed tunnel. More Information

TBM Bertha stops for maintenance

A week ago, Seattle’s SR 99 tunnelling machine Bertha stopped near South King Street for scheduled maintenance. More Information

Visit ES Rubber at STUVA

Visit ES Rubber at STUVA

A warm invitation from ES Rubber, renowned manufacturer of gaskets for segmental lining elements, to visit booth G122 More Information

Sandvik roadheaders for Confederation Line

Sandvik roadheaders for Confederation Line

Three Sandvik MT720 roadheaders will be used to excavate the 2.5 km-long tunnel on Ottawa’s 12.5 km-long Confederation Line. More Information

STUVA Conference 2013 in Stuttgart

STUVA Conference 2013, with the slogan ‘’Tunnels – Infrastructure for the Future’’ will be held at the Congress Centrum of Stuttgart from 27-29th November, 2013 More Information

New Irvington Tunnel excavated

On 08.10.2013 the final breakthrough for the 5.7 km-long New Irvington tunnel was recorded. More Information

Tunnelling News

Tunnel Boring Machine Market Size estimated at USD 7.08 Billion

The Tunnel Boring Machine (TBM) market is experiencing significant growth, driven by increasing urbanization, infrastructure development, ... More Information

Completing the First Section of Line 3: Tunnel Boring Machine Roars as it Emerges at Balboa

The Panama tunnel boring machine emerged and completed its first major task: the first section of the Line 3 Metro tunnel. More Information

Twin tunnel-boring titans prepare to dig new road under Sydney Harbour

Twin tunnel-boring titans are preparing to launch under Sydney Harbour to dig out a new road crossing from Birchgrove to Waverton... More Information

Monica Breaks Ground on Snowy 2.0

Monica the tunnel boring machine, with the renewable energy mega-project now more. TBM Monica is among the world's most advanced tunnel boring machines... More Information

Snowy 2.0 sets new tunnel boring machine to work, completes 46 underground concrete pours

Snowy 2.0 has set to work a fourth tunnel boring machine, a $75 million piece of drilling equipment purpose built to complete excavation of the huge pumped hydro project’s “geologically ... More Information

World's 'largest' underground assembly of tunnelling machines happening beneath Sydney

Workers are craning into place about 167 major pieces that will form the first of two giant boring machines. Once assembled like giant Meccano sets, ... More Information

Tunneling Begins on Major Water Pipeline for South Hillsborough

TAMPA, Fla. — Tampa Bay Water has begun construction on a major underground pipeline project aimed at meeting rising water demand in southern Hillsborough County, where population growth ... More Information

The massive £3billion tunnel designed to connect two continents under the sea

The construction of a huge underwater multi-tiered tunnel is underway in Turkey, that will create a direct route from Asia to Europe - and is expected to carry 1.3 million passengers a ... More Information

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information

Ground preparation for Lower Thames Crossing tunnelling

Work is ongoing to overcome sub-optimal ground conditions in preparation for the start of tunnelling on the Lower Thames Crossing in late 2028, according to the project’s tunnels director... More Information

LA Metro approves massive $25B underground rail line to bypass 405 Freeway

The LA Metro Board unanimously approved an underground heavy rail line to connect the San Fernando Valley and the Westside, bypassing the congested 405 Freeway. The nearly 13-mile route, ... More Information

TUNNEL VISION Mega £7.4bn undersea tunnel connecting two CONTINENTS just got one step closer

A MAJOR £7.4 billion underwater tunnel connecting two continents has taken a step closer to construction. Experts have said the 24-mile tunnel is “technically viable”, paving the way for ... More Information

TBM breakthrough in Sydney

Tunnel boring machine (TBM) Jane Starkey successfully completed her 1.2km underground journey through challenging Sydney sandstone... More Information

Hochul announces $25 million for Harlem crosstown subway tunnel design

At E. 120th St., a pair of tunnel-boring machines — currently under construction in Germany — will bore new, 8,400-foot tunnels north from the end ... More Information

Tunnelling under the Yarra River

Our two Tunnel Boring Machines (TBMs) will soon be travelling underneath the Yarra River... Approximately 300 metres of the 6.5 kilometre North East Link will be under the Yarra ... More Information

The Boring Company says its tunneling machine is 'ready to mine in Nashville'

The Music City Loop project is aimed at transporting people from Nashville International Airport to Lower Broadway in roughly 10 minutes. By Li ... More Information

Norway Is Building the World's Longest and Deepest Tunnel Beneath the Sea

The Rogfast project, short for Rogaland Fixed Link, is an underwater road tunnel being built beneath Norway's fjords as part of the E39 coastal ... More Information

Future engineers become 'TBM Captains' for Suburban Rail Loop

Tunnel Boring Machines (TBMs) that will begin work this year. The tour of the eastern tunnel entrance was part of a long-term initiative, with ... More Information

Image gallery: Civil works completed on HS2's longest tunnel

Main construction on the Buckinghamshire structure began in May 2021 with the launch of two 2,000-tonne tunnel boring machines (TBMs), named Florence ... More Information

The Boring Company Launches Free Tunnel Contest: AI Applications for Smart Infrastructure

According to Sawyer Merritt on Twitter, The Boring Company has announced a contest to build a one-mile tunnel for free, inviting proposals for ... More Information

Out of sight: spectacular HS2 tunnels offer glimmer of hope for stalling project

Despite much soul-searching over UK’s inability to build infrastructure, two sections of HS2 under Chilterns are being hailed for their engineering... More Information

HS2 January 2026 update

We’re making progress building the main infrastructure for the new line. We’ve completed 80% of tunnelling and are working on major bridges, viaducts and embankments, and HS2’s new ... More Information

Implenia Secures EUR 350 Mln Projects For Bridges, Tunnel Works In Germany

Tunnel to join motorway sections and connecting roads. The Swiss construction and real estate company said the Peene Bridge project in Wolgast, ... More Information

Incredible new $7.9bn mega rail and road tunnel to be the world's longest

The safety of our workers is of utmost importance during the construction of the Fehmarn Belt Tunnel. We will await the findings of the ... More Information

TBM launch from Rukanpura soon as metro work gains pace

The tunnel boring machine (TBM) for the underground network is likely to be launched from Rukanpura on Bailey Road, which falls under Corridor I ... More Information

World's largest-diameter boring machine used for Yangtze River railway tunnel

China's domestically developed, world's largest-diameter vertical shaft boring machine 'Qiming' was officially put into operation in Taicang City ... More Information

HCMC approves sea-crossing route with undersea tunnel between Can Gio and Vung Tau

Ho Chi Minh City has approved a strategic proposal by Vingroup to construct a direct sea-crossing road connecting the Can Gio coastal urban area with Vung Tau beach town, cutting travel ... More Information

Changi Airport’s new underground link to take passengers from future T5 to T2 in 4 minutes

SINGAPORE – Passengers at the future Changi Airport Terminal 5 can expect to reach Terminal 2 in four minutes via the airport’s new underground link... More Information

SRL inspires TBM Captains - Victoria's Big Build

Tunnel Boring Machine (TBM) Captains. When SRL East opens in 2035 ... Construction of SRL East is powering ahead, with more than 3000 people ... More Information

Beneath winter's fjords: 17 miles of rock, 1300 ft deep

Rogfast tunnel construction beneath Norway's winter fjords, 17 miles long and 1,300 feet deep,. Credits: Ground Engineering. For years, the E39 ... More Information

Massive Sinkhole Opens Near $26 Billion Tunnel Project in Melbourne

A massive sinkhole has suddenly opened up in Melbourne near a major highway tunnel construction site, sparking safety fears and halting ... More Information