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Grand Paris Express - December updates

Grand Paris Express  - December updates

Line 15 South - The excavation of this line involved 10 TBMs, which installed 128,000 segments and 18,500 rings. In 2019 TBM Steffie-Orbival was the first machine to complete its section, followed ... More Information

Tunnelbuilder welcomes 4STREETS

Tunnelbuilder welcomes 4STREETS

4STREETS s.r.l. is a young company founded in the spring of 2016 by motivated and experienced entrepreneurs who, combining the skills they had acquired in managing numerous construction sites in the ... More Information

Breakthrough - Genoa Junction One project

Breakthrough -  Genoa Junction One project

On 21/12/21 the excavation activities for the new San Tomaso tunnel, a strategic part of the Terzo Valico dei Giovi – Genoa Junction One Project, and the first of the Genoa railway junction, ... More Information

HS2’s London Tunnels programme nears launch date as first TBM’s arrive

HS2’s London Tunnels programme nears launch date as first TBM’s arrive

Press release - The start of tunnelling for HS2 in London is set to begin in 2022 and progress has been made with the delivery of two giant Earth Pressure Balance Tunnel Boring Machines (TBMs) to ... More Information

The UK’s largest Tunnel Boring Machine passes factory acceptance test and begins journey to the Silvertown Tunnel project

PRESS RELEASE - The Riverlinx Construction Joint Venture (BAM Nuttall, Ferrovial Construction and SK Ecoplant) delivering the design and build of the Silvertown Tunnel on behalf of Transport for ... More Information

Cross River Rail – Last breakthrough for the project

Cross River Rail – Last breakthrough for the project

Today TBM Merle broke through at the Northern Portal site, bringing the Cross River Rail project’s year of tunnelling to an end, click here for the video. The Cross River Rail's twin tunnels ... More Information

Construction of Sornaistentunnel approved

Construction of Sornaistentunnel approved

Helsinki City Council have approved the Sornaistentunnel project between the Sornainen coastal road and the Hermann coastal road and its implementation in stages as follows:   In the ... More Information

Clearwater Project Update

Clearwater Project Update

In October TBM Rachel began boring, stopping every 1.5 m (5 feet) to construct a ring of the tunnel wall. About 106 m (350 feet) of tunnel has been completed so far, and the pace is expected to pick ... More Information

The HRBT Expansion Project TBM Arrival Ceremony

Virginia Department of Transportation and Hampton Roads Connector Partners (HRCP) will celebrate the arrival of TBM Mary at The Port of Virginia Portsmouth Marine Terminal on the 14th December 2021. ... More Information

New section of Moscow’s BCL metro opened

New section of Moscow’s BCL metro opened

Russian President Vladimir Putin and Moscow Mayor Sergei Sobyanin opened a new almost 24 km section of the BCL including 10 stations (Terekhovo , Kuntsevskaya , Davydkovo, Aminevskaya , Michurinsky ... More Information

Snowy 2.0 Ramps Up with commissioning of Second TBM

Snowy 2.0 Ramps Up with commissioning of Second TBM

This month Snowy Hydro achieved another exciting milestone, with the commissioning of Kirsten, the second of three TBMs that will excavate more than 27km of tunnels for Snowy 2.0 pumped-storage ... More Information

The feasibility study for the Cluj-Napoca metro has been approved

The feasibility study for the Cluj-Napoca metro has been approved

The Cluj-Napoca City Council have approved the feasibility study (technical documentation and technical-economic indicators), drafted by the Joint Venture  SYSTRA, SWS Engineering and Metrans ... More Information

7th Edition of the ITA Tunnelling awards – The winners 2021

Since 2015, the international competition "the ITA Tunnelling and Underground Space Awards" seeks and rewards the most ground-breaking innovation and outstanding projects in tunnelling and ... More Information

Super sewer tunnel connects at Blackfriars site

Super sewer tunnel connects at Blackfriars site

The breaking out of the concrete plugs either side of the shaft at Blackfriars Bridge Foreshore signals the next step in secondary lining the main ‘super sewer’ tunnel. All sections of ... More Information

HS2 Launches First Midlands Giant Tunnelling Machine

HS2 Launches First Midlands Giant Tunnelling Machine

Press release - Yesterday [2 December] HS2 CEO Mark Thurston pushed the button to start HS2’s tunnel boring machine on its one-mile journey under Long Itchington Wood in Warwickshire, marking ... More Information

Work begins on the German side of the Fehmarnbelt Tunnel Project

Work begins on the German side of the Fehmarnbelt Tunnel Project

On the 29/11/2021 at 11h00a at the Fehmarnbelt tunnel construction site in Puttgarden, Danish Transport minister Benny Engelbrecht, together with Enak Ferlemann from the German Federal Government, ... More Information

Terzo Valico dei Giovi-Nodo di Genova project

Terzo Valico dei Giovi-Nodo di Genova project

The Terzo Valico dei Giovi-Nodo di Genova project has reached another milestone only 6 months after a breakthrough along the planned Valico Tunnel, which will become the longest railway tunnel in ... More Information

Hudson Tunnel Project - Update

Hudson Tunnel Project - Update

Army Corps of Engineers Permit – The Gateway Development Commission has announced that the last major step in the federal regulatory process for the Hudson Tunnel Project has been completed ... More Information

TERRATEC delivers two TBMs for Kanpur Metro’s 1st Underground Section in India

TERRATEC delivers two TBMs for Kanpur Metro’s 1st Underground Section in India

Gulermak/Sam India JV gets ready to commence tunnelling on the Corridor-1 of Kanpur MRTS Project in India. Two 6.52m diameter TERRATEC Earth Pressure Balance (EPB) Tunnel Boring Machines have been ... More Information

Tideway - TBM Selina reaches halfway point in east London

Tideway - TBM Selina reaches halfway point in east London

Selina, the giant TBM creating the final, easternmost section of London’s new super sewer has passed the halfway mark on her underground journey towards Abbey Mills Pumping Station in ... More Information

PRESS RELEASE - First of Cross River Rail’s twin tunnels complete

The first of Cross River Rail’s Tunnel Boring Machines has seen the daylight, for the first time in ten months.  The mega project is one of many being delivered by the Palaszczuk ... More Information

Breakthrough for TBM Armelle on Line 16

On 24/11/2021 Eiffage Genie Civil celebrated the breakthrough of TBM Armelle in Le Blanc-Mesnile  station, Line 16, Grand Paris Express. Click here for the video, here and fr/127 for tunnel ... More Information

BBT - Exploratory tunnel excavation completed

On the 24/11/2021 TBM Serena with a diameter of 6.85m, a length of approximately 300m and weight 1,500 t has reached the Brenner Pass. The TBM has excavated over 14 km of tunnel in 3.5 years. The ... More Information

Progress at HS2 Superhub station Old Oak Common as construction of main station box begins

Press release - Work to construct the 850m-long station box at HS2’s Old Oak Common station began last month as concrete frame and substructure specialist, Expanded, started on site. Expanded ... More Information

Strata Worldwide Announces Nerospec SK Partnership

Strata Worldwide Announces Nerospec SK Partnership

Strata Worldwide is excited to announce a new strategic partnership with technology expert Nerospec SK. Nerospec SK is a developer of cutting-edge machine digitalization systems. Together the ... More Information

Santa Lucia tunnel update

Santa Lucia tunnel update

Work is ongoing towards the completion and opening on the 4 December ( Santa Barbara's day) for new Santa Lucia tunnel in the A1 motorway,  Barberino - Calenzano section.  The ... More Information

Swinoujscie tunnel - Propaedeutic works underway

Swinoujscie tunnel - Propaedeutic works underway

Preparatory works for the construction of emergency exits of the Swinoujscie tunnel, driven under the Swina river, are underway.  The 1,483.8 m single tube tunnel will have a 3.5 m wide lane ... More Information

Tube-2 of the Nilgrar Tunnel-1 completed

Tube-2 of the Nilgrar Tunnel-1  completed

On 22/11/2021 Megha Engineering & Infrastructures Limited (MEIL) achieved a breakthrough on the Zojila tunnel construction project in the Jammu Kashmir-Ladakh region. The project was awarded to ... More Information

Not long to go for the STUVA Expo and Conference 2021!

Its less than a week to go until the STUVA Expo and Conference 2021. The conference will be held from the 24 to 26 November in Karlsruhe. To find out all about the conference please click here for ... More Information

TBM cutterheads arrive at the HS2 West Ruislip portal

TBM cutterheads arrive at the HS2 West Ruislip portal

In West Ruislip, HS2 is preparing the way for the TBMs that will dig  the high speed rail tunnels under West London. The giant cutterheads - part of the first pair of TBMs that will dig  ... More Information

Robbins Crossover XRE is World’s Fastest TBM over 13 Meters in Diameter

Robbins Crossover XRE is World’s Fastest TBM over 13 Meters in Diameter

In October 2021, the breakthrough of a Robbins Crossover XRE TBM was the cause of much celebration. A team of personnel from Kolin Construction, Turkish State Railways (TCDD), and Robbins field ... More Information

Nepal - The Posta Bahadur Bogati (Bhimphedi-Kulekhani) Tunnel update

Bagmati Province government have decided to stop work on the Posta Bahadur Bogati (Bhimphedi-Kulekhani) tunnel construction as it was unable to build the tunnel itself and the federal government had ... More Information

Llogara tunnel – construction begins

Llogara tunnel – construction begins

On the 14/11/2021 the construction of the 5.9km Llogara tunnel officially started.  The tunnel, on the road between Vlora and Saranda along the southern part of the Albanian Rivera, is planned ... More Information

Tideway - TBM Annie arrives at Earl Pumping Station

TBM Annie has reached the Earl Pumping Station site in Deptford. This marks the 2.2km point of an overall 4.5km journey from Greenwich Pumping Station to Chambers Wharf in Bermondsey. The TBM will ... More Information

Line 15 South -TBM Laurence reaches the Fort d'Ussy - Vanves - Clamart station

Line 15 South -TBM Laurence reaches the Fort d'Ussy - Vanves - Clamart station

There's a new arrival on Line 15 South of the Grand Paris Express, after Camille in July and Aby last month, TBM Laurence has now completed its drive!   On 11/09/2021 TBM Laurence – ... More Information

M4-M5 Link Tunnels: The Final Breakthrough

On the 5th of November 2021 the team excavating the M4-M5 Link Tunnels, completed their 13th and final breakthrough on the mainline tunnels.  Road headers 43 meters below ground were used to ... More Information

Tunnelling News

Amtrak awards construction contract for East River Tunnel rehabilitation

The $1.6 billion project calls for demolishing all existing tunnel systems down to the liner, then restoring both tubes. During the project, one tube ... More Information

Strabag in €110 million deal to equip transalpine tunnel

Austrian contractor Strabag has won a €110 million (US$120 million) to equip a transalpine tunnel linking Austria and Slovenia... More Information

19 tunnel boring machines for Manila subway set

A close-up of the tunnel boring machine head, with a diameter of 6.9 meters. ... The first cutter head of the first tunnel boring machine (TBM), named ... More Information

$16 billion Gateway Tunnel Project gets federal funding boost after years of delays

The $16.1 billion project includes a new rail tunnel linking New York and New Jersey — and is set to be open by 2035 ... More Information

Preferred bidder announced for second tunnelling contract

The global consortium of WeBuild S.p.A, GS Engineering and Construction Australia and Bouygues Construction ... Tunnel Project, North East Link ... More Information

Bechtel Picked as CM for $12.7B Single-bore BART Extension

Officials with the VTA are aiming to begin major construction and tunnelling for the $12.7-billion BART Silicon Valley Phase II Extension Project next ... More Information

Stonehenge could be put on world heritage danger list over tunnel plan

The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recommended that Stonehenge be listed as ‘World Heritage in Danger’ due to the A303 upgrade scheme and is ... More Information

World’s longest railway tunnel to reopen after a year

The tunnel closed on 10th August last year following the derailment of a freight train, and SBB has since been pushing ahead with repair work... More Information

Afcons Infrastructure Wins Bid for Thane Tunnel Project

Afcons Infrastructure secures the L1 bid for a tunnel project in Thane, marking a significant milestone in infrastructure development. More Information

Kolkata Metro: D-Wall's Construction Work At Victoria Metro Station Is Advancing Swiftly

For the tunnelling work of the stretch from the Khidderpore to Park Street stretch of this Corridor, two Tunnel Boring Machines (TBM) will be deployed ... More Information

K2D Skøyen – Vækerø

Implenia has been awarded the contract for section K2D Skøyen - Vækerø, which is part of the entire Fornebu line that will be completed in 2030... More Information

Massey Tunnel replacement project hits design-build proposal stage

Tunnel replacement project has finally hit the design-and-build proposal stage. The Transportation Ministry announced Wednesday that three bid ... More Information

Barhale wins £36m East London sewer remediation

Thames Water has appointed Barhale to deliver essential remediation works on a Victorian gravity sewer as it passes above the Jubilee Line and Docklands Light Railway in East London... More Information

Reaping Rewards From Continuous Innovation

In boring underground tunnels for Malaysia's MRTs, Gamuda developed the world's first autonomous tunnel boring machine (A-TBM), utilizing in-house ... More Information

5 of the longest tunnels in the world and how they were built

Since the invention of the tunnel boring machine in 1853, engineers have used advanced technology to drill, blast, and bore into the earth. From ... More Information

Femern - inauguration of the first tunnel element

We are pleased to announce that H.M. King Frederik X will take part in the inauguration of the first tunnel element on the construction site on 17 June. H.M. King Frederik X will arrive at ... More Information


A busy first half of the year on the HOCHTIEF-MURPHY Joint Venture (HMJV) Package 5 Headhouses & M&E contract on National Grid’s LPT Phase 2... More Information

Tesla Cybertruck escorts Boring Co's Prufrock-3 tunnel boring machine

The Boring Company's Prufrock-3 tunnel boring machine (TBM) recently completed a tunnel to Giga Texas, and in true Elon Musk fashion, ... More Information

Kazakhstan’s First Automobile Tunnel and Largest Bridge to be Completed this Year

As reported by the Kazakhstan’s Ministry of Transport, Kazakhstan’s first automobile tunnel through the Shakpak Baba Pass and the country’s largest bridge over the Bukhtarma Reservoir ... More Information

HRBT Expansion Project hits big milestone, could be on track for early completion

The tunnel boring machine, known as Mary ... construction of our two new bored tunnels,” said Project Director Ryan Banas... More Information

TBMs Pass Factory Test For Lesotho Highlands Water Project

A team of engineers and tunnel experts from the Lesotho Highlands Development Authority (LHDA) together with consultants and contractors working on the Polihali transfer tunnel recently ... More Information

Royal Cargo opts for Goldhofer heavy transport equipment

It has also been in action moving tunnel boring machines (TBM) for the Metro Manila Subway project ... machine part posed a significant challenge due ... More Information

Tunnel breakthrough on NI Water's £7.8M Portadown wastewater project

The tunnel boring machine excavated roughly 1,000m3 of material, which would have risen to 8,000m3 of spoil with a more traditional open-cut method. More Information

The Boring Company announces Cybertunnel at Tesla Texas HQ

In January, the company's latest tunnel boring machine (TBM), Prufrock 3, was first spotted near Tesla's Giga Texas. Prufrock-3 has ... More Information

How do you build tunnels and bridges underwater?

Underground construction usually uses powerful tunnel-boring machines to excavate soil directly. This machine is often called a mole for a reason. More Information

Five Huge New Construction Projects Coming To The US

A spokesperson for the project told Newsweek: "The Hudson Tunnel Project is a generational investment that is expected to create 95,000 new jobs and ... More Information

Chennai Metro Corridor 3: Adyar River Tunnel Work Hampered By Geological Setbacks

For the stretch between Greenways Road and Adyar, CMRL engaged two TBMs, 'Kauvery' and 'Adyar.' These machines were launched from Greenways Road ... More Information

French and Danish firms to build Valby 'cloudburst tunnel'

The underground tunnel will be 2,380m long and will be constructed as a drilled tunnel with an internal diameter of 3.4m. The tunnel will have the ... More Information

Howard's approved budgets include $44.9M for Ellicott City tunnel

The Howard County Council has approved a $2.4 billion operating budget for fiscal 2025, along with a $413 million capital construction budget that ... More Information

DC Water Breaks Ground On Potomac River Tunnel Project

DC Water on May 21 hosted a groundbreaking ceremony to officially commence construction activities for the Potomac River Tunnel Project... More Information

Silvertown Tunnel portal connections completed

A complete transformation of the tunnel shape was needed to connect the circular tunnel boring machine (TBM) constructed ... More Information

The $4BN Tunnel to Save Stockholm - The B1M

Above: A tunnel entrance under construction. When it completes in 2030, the $4BN project will be one of the longest road tunnel systems in the world. More Information

OHLA awarded the Gjønnes tunnel in Norway for nearly 160 million euros

The Norwegian Public Roads Administration (Statens Vegvesen) has awarded the company the design and construction of the Gjønnes tunnel for 156 ... More Information

Utilities tunnel dug through 'challenging' ground conditions under River Tees

Main contractor Farrans Construction worked with specialist contractor Joseph Gallagher to construct the tunnel. During its five weeks of tunnelling ... More Information

China develops world's first boring and blasting machine

In a groundbreaking development, the world's first boring and blasting machine, jointly developed by Tsinghua University and China Railway Science and Industry Group, has successfully ... More Information

Tunnel boring machine wedged in hard rock, leaving Snowy 2.0 hydropower project with new issues

Tunnelling problems are plaguing the $12 billion Snowy 2.0 hydropower project, with a boring machine previously bogged in soft ground now wedged in ... More Information

Construction Complete On New High-Speed Rail Tunnel

Inside the completed Desheng Tunnel, and inset, a Chinese high-speed train. Work on the project is now complete. © China ... More Information

DC Water Breaks Ground on Potomac River Tunnel Project

The Project consists of a large-diameter deep sewer tunnel, diversion facilities, drop shafts, and support structures to capture flows from existing ... More Information

Morocco’s proposed $13 billion underwater tunnel to connect Europe to Africa by 2030s

An historic intercontinental rail link is aiming to link Europe to Morocco with an ambitious underwater tunnel. The Moroccan National Company for Strait Studies (SNED) announced last ... More Information