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Cooling the Tube

Retired Chartered Engineer CALVIN BARROWS proposes simple but innovative solutions to the age-old problem of overheating metro networks. Worldwide there are a significant number of Metro networks ... More Information

The Blue line extension in Montreal

On July 4th , 2019 Canada’s Prime Minister Justin Trudeau, joined by Mayor Valerie Plante, the Quebec Junior Transport Minister and Minister Responsible for Montreal, Chantal Rouleau and ... More Information

Purple Line Extension in Los Angeles

Purple Line Extension in Los Angeles

New allocation from the FTA for section three of the Metro has received a new allocation of AUD100 million from the Federal Transit Administration (FTA) for the third and final section of the ... More Information

Boring begins on the West Gate Tunnel

Boring begins on the West Gate Tunnel

The launch site - from where the 90 m long TBMs will dig south west to build the twin tunnels to connect the West Gate Freeway to the port, city and CityLink in Melbourne - has taken a year to ... More Information

Tallinn-Helsinki tunnel memorandum of understanding signed

Finest Bay Area Development has signed a memorandum of understanding with three Chinese companies, as part of plans to build the 100 km (60 mile) double undersea train tunnel from Tallinn in ... More Information

Melbourne Metro - Breakthrough at State Library Station

Melbourne Metro - Breakthrough at State Library Station

Three roadheaders have met 30 metres underground in the first major breakthrough, connecting two excavated caverns that will become State Library Station. The road headers have dug out more ... More Information

Bahrain Rail Congress 2019 – Press release

The Bahrain Rail Congress 2019 will be held under the theme “Designing & Developing a Well Connected, World Class, National Rail Network in the Kingdom of Bahrain” which is ... More Information

Excavation of the western section of the M4 completed

On  the 10th of July 2019 a second TBM arrived at Parco Solari station in Milan. Thus completing the excavation of the tunnels from San Cristoforo to Solari, part of the western section of ... More Information

Joint venture for tunnel project

Element Construction are looking for a tunnel construction company to be part of a joint venture on a tunnelling project. The tunnelling project is to build two parallel tunnels for a highway, ... More Information

West Gate tunnel update

Before tunnelling for the West Gate Tunnel Project begins in 2019, they need to divert a 600 metre section of the North Yarra Main Sewer. Diverting a sewer is a massive job that involves ... More Information

Thames Tideway Tunnel: Aerial Photos Reveal £4.2 Billion Project's Progress

London’s £4.2 billion super sewer is seen from the air as new pictures reveal deep shafts carved into the banks of the River Thames. The Thames Tideway tunnel snakes alongside the ... More Information

TBM Sandy arrives at Redcliffe

TBM Sandy arrives at Redcliffe

On Saturday, July 6th , the second 130m-long TBM arrived at Redcliffe Station for the Forrestfield Airport Link project. TBM Sandy broke through into Redcliffe Station, emerging from her most ... More Information

Ghella wins Cross River Rail Tunnel, Stations and Development Package

Ghella, as part of the Pulse consortium, which is led by CIMIC Group, has reached contractual and financial close with the State of Queensland to deliver the Tunnel, Stations and Development (TSD) ... More Information

Purple Line - TBMs Harriet and Ruth named and unveiled

Purple Line - TBMs Harriet and Ruth named and unveiled

Metro NET celebrated the ceremonial naming and unveiling of its second set of tunnel boring machines that will dig twin subway tunnels between Beverly Hills and Century City. Subway tunnelling is ... More Information

ISRBT2019

The International Seminar on Roads, Bridges and Tunnels, the ISRBT2019 will take place in Thessaloniki, 7-9 November. It will consist of three daily Sessions, 7th November: Roads, 8th November: ... More Information

TERRATEC TBM breaks through on Bangkok tight radius curve

TERRATEC TBM breaks through on Bangkok tight radius curve

TERRATEC’s tight radius TBMs are enabling a highly challenging project alignment for Bangkok’s Metropolitan Electricity Authority in one of the city’s busiest downtown areas. In ... More Information

TBM Kathleen prepares for historic dig under the Harbour

TBM Kathleen prepares for historic dig under the Harbour

Tunnel Boring Machine (TBM) Kathleen has passed its final inspection and is now ready to launch from Barangaroo next month to dig the historic rail crossing deep under Sydney Harbour. The 975 ... More Information

EXPO Ferroviaria 2019

EXPO Ferroviaria 2019

EXPO Ferroviaria 2019, the 9th International Railway Exhibition, will take place from Tuesday 1st  to Thursday 3rd of October 2019 at the Rho Fiera exhibition centre, ... More Information

VMT - Combining Guidance Technologies Provides Accurate Solution for Cable Installation

VMT - Combining Guidance Technologies Provides Accurate Solution for Cable Installation

The Award-winning E-Power Pipe® system, which was developed by Herrenknecht AG as a new method for the quick and secure installation of small-diameter cable protection pipes underground for ... More Information

First TBM arrives at the Colosseum

On the 24th of June TBM 1 which is excavating the Rome Line C arrived near the Colosseum, while TBM 2 has passed the Piazza Celimontana shaft. After arriving at Fori Imperiali the TBMs, cannot ... More Information

Penetron waterproofs the Xi’an underground utility tunnel

Penetron waterproofs the Xi’an underground utility tunnel

Construction on the Xi’an utility tunnel project is ongoing. With estimated total costs of US$2.6 billion, it is currently China’s single largest infrastructure project. The planned ... More Information

News for Z-Morh and Zojila tunnels on NH1 in Jammu & Kashmir

The government of India, following the IL&Fs financial crisis, cancelled the contracts with first contractors for the construction of the 14-km-long Zojila and 6.5-km-long Z-Morh tunnels on the ... More Information

World Road Congress Abu Dhabi 2019

World Road Congress Abu Dhabi 2019

Early bird registration for the 26th World Road Congress has now been extended until the 30th of June. For further information about the congress please click here. To register for the event ... More Information

Normet making history by doing underground explosives charging on batteries

Normet making history by doing underground explosives charging on batteries

Iisalmi, Finland, June 12, 2019. Normet made history by demonstrating battery electric emulsion charging in production environment underground on June 4th in Pyhäsalmi mine, Finland, with ... More Information

WTC2020 - Submit your abstract!

WTC2020 - Submit your abstract!

The World Tunnel Congress (WTC) 2020 will be held in the Kuala Lumpur Convention Centre, Kuala Lumpur. Growing numbers of underground innovations claimed to hold the key to unlock the door to ... More Information

Sydney Metro Project: tunnelling edges closer to the Harbour

Sydney Metro’s third mega TBM has broken through a wall of rock at the new Crows Nest Station, marking a major milestone in the project which will link the North West Metro to the CBD and ... More Information

Fehmarn Belt - EU Probing €8.7billion Tunnel Project's Financing

After appeal Europe's competition enforcer launched an in-depth investigation on the 14.06.2019  into public financing for a planned €8.7 billion ($9.8 billion) rail and road tunnel ... More Information

Forrestfield's TBM Grace at Bayswater

After relaunching, TBM Grace has now successfully tunnelled through the station box d-wall (western end). After spending five weeks at Redcliffe Station, where she underwent scheduled ... More Information

Cipa and Rome Metro C

Cipa and Rome Metro C

CIPA S.p.A.  is carrying out the widening excavations of the odd and even tracks on the section of the Rome Metro C between the well 3.3 and the San Giovanni station. On the left side of the ... More Information

Remembering Dick Robbins 1933-2019

Remembering Dick Robbins 1933-2019

It is with deep sadness that The Robbins Company announces the passing of Richard James Robbins, President and CEO from 1958 to 1993. Dick passed away surrounded by family on Thursday May 30, 2019 ... More Information

ITA Tunnelling Awards 2019 in Miami - Florida - New Extended Deadline June 22nd, 2019

THE ITA TUNNELLING  and UNDERGROUND SPACE AWARDS 2019- 5th EDITION. The 5th edition of the international tunnelling and underground space awards welcomes new applications, ITA is now calling ... More Information

Boryeong undersea tunnel opens

Boryeong undersea tunnel opens

The Korean Ministry of Land, Infrastructure, and Transport announced that on June 6th, the South bound of the 6,927 m Boryeong Undersea tunnel, Korea’s longest undersea tunnel, had broken ... More Information

Heung Yuen Wai Highway and tunnels opens to the public

Heung Yuen Wai Highway and tunnels opens to the public

On the 26th  May 2019 the 11-km dual two-lane carriageway Heung Yuen Wai Highway opened to public. The highway includes the 4.8km Lung Shan Tunnel, 0.7km Cheung Shan Tunnel,  4.5km of ... More Information

Register by July 30th and Save at the 12th Annual Breakthroughs in Tunneling Short Course

The early registration discount for ‘The 2019 Breakthroughs in Tunneling Short Course’ ends July 30th.  Early registrants will save $100 off the price of full conference ... More Information

Press Release - Milan’s M4: end of excavation work nears as TBM reaches Foppa station box

The excavation work along Milan’s new M4 metro line came a step closer to completion as the consortium responsible for the project led by Salini Impregilo celebrated the latest breakthrough ... More Information

Forrestfield – airport link June update

Forrestfield – airport link June update

TBM Grace Tunnel boring machine (TBM) Grace arrived at Redcliffe Station last month, breaking through the one-metre-thick eastern station box wall to a cheering crowd of excited team ... More Information

Tunnelling News

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

The world's longest expressway tunnel: China's Tianshan Shengli Tunnel

At the same time, the project also implemented China's first 'three-tunnel parallel construction' plan, which increased the number of workfaces. At ... More Information

'Not really where you want to be': Ground preparation for Lower Thames Crossing tunnelling

The Lower Thames Crossing is a major new road and tunnel project in the UK, intended to alleviate congestion at the Dartford Crossing and enhance. More Information

Funding problems affect metro line extensions

In the Athens metropolitan area, construction of Line 4 is continuing, with the Avax-Ghella-Alstom consortium saying the two tunnel-boring machines ... More Information

Transport Minister inspects progress on Cairo Metro Line 4 phase one

Four tunnel boring machines (TBMs) are in operation—two in each direction. According to the project timeline, the first TBM has reached the Grand ... More Information

Here's what happened with Toronto's Scarborough Subway Extension in 2025

SSE tunnelling, which began in January 2023, is being carried out with the largest tunnel boring machine (TBM) ever used on a Canadian transit project ... More Information

NHAI connects Tunnel No. 4 on Shimla bypass

NHAI PIU Shimla Project Director Anand Kumar, Bharat Construction ... The tunnel was constructed using the New Austrian Tunnelling Method (NATM) ... More Information

Mumbai-Ahmedabad Bullet Train Update: Palghar Tunnel Breakthrough Achieved

NHSRCL Bullet Train Project | India First Bullet Train Update: Last year, the Ministry of Railways achieved a breakthrough in the construction of ... More Information

Main tunnel works connecting future Changi Airport T5 to existing T2 completed

Main tunnel works connecting the future Terminal 5 to the existing Terminal 2 are completed, as the Changi East development gathers pace... More Information