Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

Brazil - The South TBM of Sao Paulo’s Metro Line 6 reached Perdizes Station

Brazil - The South TBM of Sao Paulo’s Metro Line 6 reached Perdizes Station

The TBM - named Maria Leopoldina - working on the construction of Line 6 of the Sao Paulo metro, in Brazil, reached its fourth stop on the route, Perdizes station, on Friday, September 29. The TBM ... More Information

TERRATEC Rock EPBM is ready for Delhi Metro

TERRATEC Rock EPBM is ready for Delhi Metro

In late August, TERRATEC celebrated the successful Factory Acceptance Test of a new 6.61m diameter Rock Earth Pressure Balance Tunnel Boring Machine (EPBM) destined for Delhi Mass Rapid Transit ... More Information

China's first EPB TBM Exported to South America came off the Production Line at CRCHI

China's first EPB TBM Exported to South America came off the Production Line at CRCHI

China's inaugural EPB TBM designated for South America recently rolled off the production line at CRCHI on September 27th. CRCHI, the manufacturer, holds the honour of being the first to export ... More Information

Lift off! HS2’s latest London tunnelling machine assembled 25 metres below ground

Press release - We've unveiled the names of the next pair of tunnel boring machines (TBMs) that will construct the high speed rail line under the capital. Following a public vote, the names Emily ... More Information

Cost and Schedule Changes for VTA's BART Project

Cost and Schedule Changes for VTA's BART Project

VTA announced the updated cost and schedule for VTA’s Phase II Project at October 20, 2023 Board of Directors meeting. These changes reflect the Project’s design progress and market ... More Information

Alignment chosen for the new railway line project Neuchâtel - La Chaux-de-Fonds!

Alignment chosen for the new railway line project Neuchâtel - La Chaux-de-Fonds!

Between Neuchâtel and La Chaux-de-Fonds, a new direct railway line will be built as part of the strategic development program for railway infrastructure, development stage 2035 (PRODES EA ... More Information

NCE Tunnelling Awards: Discover who the 2023 finalists are!

The shortlist has been announced for the NCE Tunnelling Awards 2023! Click here to view the 2023 shortlist. The winners will be announced at a gala dinner ceremony at the Hilton Bankside in London ... More Information

ISAVFT 2024 - Call for Papers is Now Open!

The call for papers for ISAVFT 2024  is now open. The symposium -  to be held at the Tivoli Hotel and Congress Centre in Copenhagen (Denmark) on 28-30 October 2024 - is seeking paper ... More Information

First TBM breaks through at future Oak-VGH Station

The first of two TBMs has broken through at the future Oak-VGH Station, achieving another milestone for the Broadway Subway Project.   The machine, named Phyllis, has reached the fourth ... More Information

Nye Veier announces the first tender for the E6 Ranheim-Værnes

Nye Veier announces the first tender for the E6 Ranheim-Værnes

Nye Veier has sent out the first tender information for the Ranheim-Vaernes section at the end of October/beginning of November. The first competitive dialogue will include completion of the section ... More Information

Press Release - Epiroc Powerbit X transforms ground support in Stockholm's Sofia Station

Press Release - Epiroc Powerbit X transforms ground support in Stockholm's Sofia Station

A hundred meters below ground, in the very heart of the Swedish capital Stockholm, the Epiroc Powerbit X is breaking grounds in civil construction with its diamondprotected technology by drilling an ... More Information

Turin/Lyon - New TBM live from the factory

Turin/Lyon - New TBM live from the factory

A new TELT TBM - 10.5 m diameter, 264 t weight, 180 m length, for the Lyon-Turin new line unveiled on October 6th, 2023 at the Herrenknecht AG plant! It will work on the CO6/7 site for the Mont ... More Information

National Grid’s London Power Tunnels breakthrough completes the project’s tunnelling activity

On September 30 th, 2023 the National Grid’s EUR1.15 bn (GBP1 bn) London Power Tunnels (LPT) project has achieved a major milestone with its final tunnelling breakthrough at Eltham substation ... More Information

TERRATEC delivers Tunnel Conveyors for Metro Manila Subway Project in the Philippines

The Metro Manila Subway Project commences with the implementation of TERRATEC's Continuously Advancing Tunnel Conveyors.  TERRATEC is pleased to announce the successful delivery of two ... More Information

World First - The €500MM Norwegian Ship Tunnel to Hit the Market

World First - The €500MM Norwegian Ship Tunnel to Hit the Market

Press release - The world's first ship tunnel will now go out to tender - The Stad Ship tunnel will secure ship traffic in weather-resistant Stad. It is now clear that he will go out to tender in ... More Information

HS2 – Latest Green Tunnel

HS2 – Latest Green Tunnel

HS2 has begun assembling the project’s longest ‘green tunnel’ - designed to blend the high speed railway into the rural landscape and reduce disruption for communities around ... More Information

Switzerland – Postpone the opening of the Ligerz tunnel

The Ligerz tunnel will be put into operation at the end of 2029, three years later than planned. This delay is due to objections and appeals as well as an updated construction method due to ... More Information

Second tube of Ucka tunnel on Y Istrian Motorway has been completed

On September 18, 2023 Bouygues Travaux Publics teams brokethrough for the second tube of the 5.6km Ucka tunnel on the Istria motorway. This breakthrough marks the end of the excavation work, carried ... More Information

Italy/Sicily - Second TBM for the Giampilieri-Fiumefreddo section has passed its FAT

Italy/Sicily - Second TBM for the Giampilieri-Fiumefreddo section has passed its FAT

On 11th  September 2023 the TBM EPB - diameter 9.36 m and weight of approximately 900 t - which will be used by Webuild for the construction of the Letojanni and Forza d'Agrò tunnels on ... More Information

Kanpur metro - TBM Nana reaches Bada Chauraha Station

Kanpur metro - TBM Nana reaches Bada Chauraha Station

This September the Gulermak - Sam India Builtwell JV’s TBM S93 - 6.52 m diameter and 120 m length - named Nana after Nana Saheb Peshwa and built by Terratec,  reached the Bada Chauraha ... More Information

Superloads deliver North East Link's TBM parts to Watsonia

The first parts of the massive TBMs that will dig the North East Link tunnels have completed their journey by sea to the Port of Melbourne and on September 9 and 10 have been transported to their ... More Information

Sydney Metro - Two milestones on Western Sydney Airport project

Sydney Metro - Two milestones on Western Sydney Airport project

The first milestone is the launch of the fourth TBM, named after Marlene Kanga AO, and the second milestone is the breakthrough of the TBM Peggy at the Airport Terminal Station.  ... More Information

Norway - The TBM that will drill the E6 Clean water tunnel Project in Oslo has arrived

On September 4th, 2023  the twelve largest and heaviest parts of the TBM - to be used to drive the tunnel for the new main water supply line in Oslo - were unloaded at Ormsundkaia  with ... More Information

Italy/Liguria - Choose alignment for the Aurelia Bis project linking Sanremo with Ventimiglia

In September in Ventimiglia representatives of the Government, of Liguria Region, of the Province of Imperia and of local municipalities presented the EUR 1.2 bn project for the ... More Information

Press release - Discover the €1.2B Mega Project in Norway - Paving the Way North of the Arctic Circle - E6 Megården–Mørsvikbotn

In a remarkable development, the Norwegian government has earmarked a substantial investment of NOK 4 billion for the ambitious E6 highway expansion project in Sørfold, Nordland. This ... More Information

The Central Interceptor tunnel project in Auckland reaches halfway mark

On 4 September the Hiwa-i-te Rangi TBM - more than 5m diameter -has broken through into a 69m deep shaft in May Road, Mount Roskill marking the halfway point of her 14.7km journey to central ... More Information

New milestones for Phase II of Chennai city’s metro rail network development

CMRL is going to further develop the Chennai city metro rail network as part of Phase II with 3 new corridors of metro rail for a total length of 116.1 km with 119 metro stations: Corridor-3, from ... More Information

North East Link TBM machine arrives by sea

The first of two 4000 t TBMs that will dig the North East Link Tunnels has passed testing. The first parts of the TBM have completed their journey by sea to the Port of Melbourne and they will ... More Information

E39 Rogfast - Four companies apply to be prequalified for Contract E02

The project manager Sveinung Brude from the Norwegian Public Roads Administration informed Implenia Norge/Stangeland Maskin, NCC Norge and Skanska Norge from Norway and Acciona Construcción ... More Information

2023 Stuva-Expo

STUVA-Expo will take place from 8.11.2023 - 9.11.2023 and almost all the exhibition space has already been rented out. Around 200 well-known exhibitors from Germany and abroad will present products ... More Information

ZITRON at the XVII AFTES International Congress 2023 in Paris

ZITRON at the XVII AFTES International Congress 2023 in Paris

From October 2-4, 2023, Zitrón will be a part of the XVII AFTES International Congress at Paris, Congress Palace. This event provides a unique opportunity to engage with our ... More Information

Preferred bidder announced for Suburban Rail Loop (SRL) East tunneling contract

The consortium Suburban Connect - including CPB Contractors, Ghella and Acciona Construction is the preferred bidder for the first Suburban Rail Loop (SRL) East main works contract, with TBMs on ... More Information

India - Terratec Hard Rock Double Shield TBM commences operations for Vishnugad-Pipalkoti Hydropower project

India - Terratec Hard Rock Double Shield TBM commences operations for Vishnugad-Pipalkoti Hydropower project

TERRATEC is pleased to announce that the Ø9.86m Hard Rock Double Shield TBM has commenced the excavation for Vishnugad-Pipalkoti Hydropower Project in India.   The TBM is currently ... More Information

BBT - Eisack Underpass work completed

All the main works have been completed at the construction site of lot H71 “Eisack River underpass” of the Brenner Base Tunnel, and subsequently the work completion report has now been ... More Information

HS2 opens TBM naming competition

HS2 (High Speed Two) Ltd is asking the public to choose names for the next two TBMs that will be launched in early 2024 to dig the Northolt Tunnel East travelling through Brent and Ealing. The TBMs ... More Information

HS2’s Tunnel progress - TBMs Florence and Cecilia reached Little Missenden

HS2’s Tunnel progress - TBMs Florence and Cecilia reached Little Missenden

Last week on August 8th, 2023 the giant TBMs reached the Little Missenden ventilation shaft, passing the fourth of five ventilation and emergency access shafts, 75% of the way through the 16 km (10 ... More Information

Tunnelling News

East West Rail between Bedford and Cambridge to include new tunnels

15 November, 2024 By Thames Menteth Revised proposals for the East West Rail scheme’s section between Bedford and Cambridge include a new section of railway, as well as new stations and ... More Information

Amtrak's $1.6B East River Tunnel Rehab Work Contractors Get Notice to Proceed

Amtrak's $1.6-billion East River Tunnel Rehabilitation Project in New York is advancing after construction manager STV Inc./Naik Consulting Group ... More Information

Tunnel Boring Machine for National Grid's VIP project in Eryri set to arrive in North Wales

National Grid is reaching a major milestone on the Eryri Visual Impact Provision (VIP) scheme with the arrival of its Tunnel Boring Machine (TBM) to ... More Information

Tunnel boring machine hits major milestone on Snowy 2.0 project

The Snowy 2.0 pumped-hydro megaproject recently marked a significant milestone, with one of three tunnel boring machines (TBM), Lady Eileen Hudson ... More Information

Morocco-Spain Underwater Tunnel Plans Move Forward with Renewed Focus

Discover the ambitious Morocco-Spain Underwater Tunnel project, set to connect continents in under 30 minutes and revolutionize travel between ... More Information

Alaska Transportation Department to spend $1 million on Knik Arm tunnel study

The results of the feasibility study will give us a better picture of how the project could be constructed, potential costs, and financing options,” ... More Information

Extra tunnels included in £6bn East West Rail scheme

Bowing to pressure to reduce the project's environmental impact two tunnels are now proposed for the new stretch of railway in Cambridgeshire. Design ... More Information

Balfour Beatty VINCI reaches halfway point on key HS2 'green tunnel'

As well as Burton Green, green tunnels will be constructed at Copthall in Hillingdon, Wendover in Buckinghamshire and Chipping Warden and Greatworth, ... More Information

Webuild-led consortium confirmed for US$1.1 billion tunnelling work

Webuild-led consortium confirmed for US$1.1 billion tunnelling work (US$1.1 billion) tunnelling package on the Suburban Rail Loop (SRL) East public transport project to a consortium of ... More Information

Balfour Beatty snares $746M I-35 rebuild in Texas

The London-based contractor will reconstruct 2.5 miles of the highway through downtown Austin and build a link to the future light rail line. AECOM-Jacobs JV signs on to $6B Amtrak tunnel ... More Information

Metro Vancouver digs water tunnel designed to withstand 'the big one' under Fraser River

Crews have begun construction on a new $450-million water supply tunnel between New Westminster and Surrey designed to withstand a major earthquake. More Information

Longest tunnel in Poland begins construction

The project, managed by the Polish company Budimex and Turkish Gülermak, includes 10 viaducts and 12 bridges. This unprecedented investment will ... More Information

Watercare Passes Key Milestone On $300M Programme To Improve Wastewater Services

Watercare and McConnell Dowell celebrate Piper's final breakthrough. On Sunday (subs note: November 10), Piper – a tunnel-boring machine – completed ... More Information

Tutor Perini Scores Contracts

The tunnel project includes the construction of two new shafts connecting to the surface and the use of a tunnel boring machine. The completed ... More Information

Bengaluru Metro completes tunnelling for longest underground line

The final breakthrough came from Bhadra, the last Tunnel Boring Machine (TBM) deployed, which completed a 937-meter stretch from K G Halli to Nagawara ... More Information

Eastern Freeway Upgrade preferred bidders confirmed

Tunnel boring is currently underway on the North East Link project, with machines currently digging under Yallambie. Federal Minister for ... More Information

Bengaluru civic body completes DPR for 18-km underground tunnel road network

Designed to ease Bengaluru's notorious traffic congestions, the project will deploy six massive Tunnel Boring Machines (TBMs) with a diameter of 14.7 ... More Information

Frontier-Kemper Awarded $1.1 Billion Kensico-Eastview Connection Tunnel Project

Frontier-Kemper Awarded $1.1 Billion Kensico-Eastview Connection Tunnel Project for New York City Department of Environmental Protection... More Information

Assam's first underwater tunnel: CM Himanta Biswa Sarma says DPR nears completion

Assam Chief Minister Himanta Biswa Sarma announced that the Detailed Project Report (DPR) for the Gohpur-Numaligarh tunnel project is almost ... More Information

The Tunnel Vision: A look at California's $20B plan to solve to the state's water crisis

Minassian describes the process, locations and implications of the operation using four tunnel boring machines. READ STORY | HEAR PODCAST. PART 3 ... More Information

Ruby deployed for final Metro West tunnel beneath Sydney Harbour

Tunnel boring machine (TBM) Ruby has begun carving out the final section of tunnel for the Sydney Metro West project. More Information

Photos: Inside the $250 Million Tunnel Being Constructed Under Columbus

Located at an average depth of 50 feet underground, the 12-foot-diameter tunnel has been under construction since early 2021. By the time it is ... More Information

Tideway: £4.5bn ‘super sewer’ begins to protect Thames as first 4 sites activated

The Thames Tideway Tunnel has commenced operation as the first four of 21 sites have been switched on. This means that, after eight years of construction, the 25km £4.5bn “super sewer” has ... More Information

Lowest bidder emerges for Dubai Metro Blue line

Dubai’s Roads & Transport Authority (RTA) opened bids from contractors for the contract to design and build Dubai Metro’s Blue Line on 8 October. The group of China Tiesiju Civil ... More Information

Sanya River estuary passage project makes steady progress

A drone photo shows the construction site of the Sanya River estuary passage project in Sanya, south China's Hainan Province, Oct. 12, 2024. The Sanya River estuary passage project ... More Information

Mumbai Metro 3: Breaking Ground, Defying Odds

Two tunnels for the 33.5-km corridor (Colaba to Aarey), totalling 55 km, were carved out, using 17 Tunnel Boring Machines (TBMs). Certain sections ... More Information

VIDEO: Drone fly through inside new HRBT tunnel

We can't fly you to the moon, but we can fly you through the new #HRBTExpansion tunnel. Drone video gives you a quick glimpse into the... More Information

Skanska receives Innovate UK funding to accelerate decarbonisation of concrete

Our Skanska Costain STRABAG JV has secured funding to trial repurposed London Clay as a low carbon alternative to cement... More Information

Longest Tunnel in the World Entering Final Phase Underneath Newburgh

Repair Plans for the Delaware Aqueduct in Wawarsing and Newburgh, NY. The plan for repairs involved the construction of a 2.5 mile bypass tunnel ... More Information

Two TBM's break through

Two TBM's break through. Joshua Farrell ... tunnelling segments to line the new tunnel walls. Work inside the ... More Information

Texas A&M eyes Elon Musk's Boring Company for tunnel system

A&M officials have conducted a feasibility study with positive results, but they have yet to talk with Musk about the project, Chief Operating Officer ... More Information

Construction Begins on £1.8bn Underwater Tunnel Under Panama Canal

The tunnel is part of Panama's Metro Line 3 monorail project, designed to ease traffic congestion in the metropolitan area. tunnel boring machine... More Information

Webuild at work on the massive railway tunnel at the heart of the Northeast Corridor

After years of planning, the Hudson Tunnel Project (HTP) to improve the railway connection between New York and New Jersey has begun. The first drilling contract for the tunnels, part of ... More Information

TfL Awards Contract for Elephant & Castle Tube Station Upgrade

Transport for London (TfL) has selected Dragados UK to design and construct new passenger tunnels at Elephant & Castle Tube station. These tunnels will connect the new station box to the ... More Information

More than 10 years of transformational tunnelling

More than 23,000 workers, 11 tunnel boring machines (TBMs) and an army of roadheaders and excavators are what it has taken for CPB Contractors to construct more than 80 kilometres of ... More Information

Ivy – the Newest Member of the DEME Marine Fleet on the Fehmarnbelt Tunnel Project

DEME have introduced “Ivy”, the newest member of their marine fleet for the Fehmarnbelt tunnel project! Specifically designed for the transport and immersion of the project’s 89 massive ... More Information

Double down: SA’s groundbreaking purchase

Up to twice the number of Tunnel Boring Machines previously anticipated will be delivered to South Australia for the landmark River Torrens to Darlington (T2D) Project, giving hope the ... More Information

CRL Tunnel Vision September 2024

This month in Tunnel Vision we’re celebrating Te Wiki o te Reo Māori! It’s been a busy month on the CRL fitting out the stations with all the technical systems needed to run and revealing ... More Information

Siddhababa tunnel achieves key breakthroughs.

The first and third cross passages of the Siddhababa Tunnel Project on the Siddhartha Highway have achieved breakthroughs. Construction of two of ... More Information