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

Andorra Completes Service Tunnel at Dos Valires

Andorra Completes Service Tunnel at Dos ValiresThe 2,870 m-long Dos Valires service tunnel broke through in the Principality of Andorra. The first blast took place on 19th October, 2005 and ... More Information

TBM Breaks Through Beacon Hill in Seattle

TBM Breaks Through Beacon Hill in SeattleA Mitsubishi Heavy Industries tunnel boring machine broke through the east side of Beacon Hill in the Seattle's south end a little after 8:15 a.m on ... More Information

Godwin Pumps at RETC

Godwin Pumps at RETCThe Godwin Dri-Prime® - an automatic self-priming centrifugal pump set available in sizes from 2" to 18" (50 mm to 450 mm) - has been proven in tunnel and shaft ... More Information

Third China International Tunnel and Underground Space Exhibition and Conference

Third China International Tunnel and Underground Space Exhibition and ConferenceThe Third China International Tunnel and Underground Space Exhibition and Conference, or Tunnel China 2007 as it is ... More Information

Martin Knights Elected President of ITA

Martin Knights Elected President of ITAAs widely expected, Martin Knights was elected president of the ITA at the recent Prague conference. Martin has 35 years post graduate civil engineering ... More Information

Bauma 2007 Sheds Light on Atlas Copco's E-series Drill Rig and New Roofex Bolt

Bauma 2007 Sheds Light on Atlas Copco's E-series Drill Rig and New Roofex BoltTo further enhance the success of Rocket Boomer E-series - Atlas Copco's new series of face drilling rigs for ... More Information

Two CSM Bessac TBMs at Work in Algiers

Two CSM Bessac TBMs at Work in AlgiersIn November 2001, the poor districts of Bab El Oued, Frais Vallon and Beau Fraisier on the western side of Algiers were struck by devastating floods and ... More Information

Seen at Bauma 2007

Seen at Bauma 2007At Bauma 2007 held in Munich, Germany on 23rd-29th April, manufacturers of machinery for tunnels and mines have put a lot of effort into easy assembly. Assembly times have ... More Information

ITA Presidency Battle Hots Up

ITA Presidency Battle Hots UpBallots for the next three years presidency of ITA will be cast on 5th May, 2007 at the ITA Assembly in Prague. A leading contender is Martin Knights of Jacobs ... More Information

Robbins-MHI EPBMs To Excavate Delhi Metro Extension

Robbins-MHI EPBMs To Excavate Delhi Metro ExtensionRobbins will team up with Mitsubishi Heavy Industries (MHI) to design and manufacture two 6.5 m-diameter earth pressure balance machines (EPBMs) on ... More Information

Bosphorus Tunnel Reaches Major Milestone

Bosphorus Tunnel Reaches Major MilestoneThe first immersed tube section of a new rail tunnel joining Europe and Asia was recently placed in a trench at the bottom of the Bosphorus Straits in ... More Information

Herrenknecht's Triple TBM Launch on Metro Lines in Athens, Sao Paulo and Budapest

Herrenknecht's Triple TBM Launch on Metro Lines in Athens, Sao Paulo and BudapestThree Herrenknecht TBMs have been put at work around the world in recent weeks to build three new metro lines ... More Information

Bauma Mining 2007, a Must-See Place for Tunnelling Professionals

Bauma Mining 2007, a Must-See Place for Tunnelling ProfessionalsThe 2007 edition of Bauma, the world fair for machinery for the building and construction, building materials and mining industries, ... More Information

Lovat’s Double Olympic Achievement in London and Vancouver

Lovat’s Double Olympic Achievement in London and VancouverTunnelling work on major infrastructure developments for the 2012 Summer Olympic Games in London and the 2010 Winter Olympics in ... More Information

Water Arrives in Kunming

Water Arrives in KunmingAfter nearly five years struggling with extremely difficult geological conditions, the official inauguration ceremony of the Zhangjiuhe River Water Diversion and Water ... More Information

Lovat to Supply TBM for Hobson Bay Sewer in Auckland

Lovat to Supply TBM for Hobson Bay Sewer in AucklandLovat and contractors McConnell Dowell and Fletcher Construction have recently signed a contract for the supply of a new Lovat RME170SE Series ... More Information

Challenging Casing System and Blast Monitoring at the Saas Tunnel in Switzerland

Challenging Casing System and Blast Monitoring at the Saas Tunnel in SwitzerlandThe valley of Klosters and Davos, worldwide known from the annual World Economic Forum, provides a crucial ... More Information

Robbins TBM Breaks Through Outfall in Ferrol, Spain

Robbins TBM Breaks Through Outfall in Ferrol, Spain The Ministry of Development ended on 1st April, 2007 tunnelling of the land outfall in the estuary of Ferrol in Galicia, northwest ... More Information

Two Herrenknecht EPB TBMs To Bore Line C of the Rome Metro

Two Herrenknecht EPB TBMs To Bore Line C of the Rome MetroMetro C SpA, formed by Astaldi, Ansaldo Trasporti Sistemi Ferroviari, Consorzio Cooperative Costruzioni (CCC) and Vianini Lavori, ... More Information

Brazil Invites Tenders for Sao Francisco River Basin Diversion Project

Brazil Invites Tenders for Sao Francisco River Basin Diversion ProjectAfter years of negotiation and debate, Brazil invites tenders for construction and on-site supervision of the BRL4.5 billion Sao ... More Information

Dante-Garibaldi Section of Line 1 in Naples to Be Ready in 2010-2011

Dante-Garibaldi Section of Line 1 in Naples to Be Ready in 2010-2011Extension of Line 1 of the Naples subway consists mainly of rail tunnels between Piazza Dante station (not included) and the ... More Information

North Tunnel on M-30 South Bypass Opens in Madrid

North Tunnel on M-30 South Bypass Opens in MadridSince 23rd March, 2007 up to 80,000 vehicles use daily the north tunnel on the south bypass on the M-30 in Madrid, which opened to traffic at ... More Information

Flooding Begins on Subsea Palm Jumeirah Tunnel in Dubai

Flooding Begins on Subsea Palm Jumeirah Tunnel in DubaiWork on the Palm Jumeirah infrastructure continues apace, with one of its key transport links - the subsea tunnel - entering its final ... More Information

Pipejacking for Pantai Sewer Network in Kuala Lumpur

Pipejacking for Pantai Sewer Network in Kuala LumpurPhase 1, Package 1 of a major sewerage project is currently being undertaken by Shimizu-Road Builder-Hitachi Plant JV in Kuala Lumpur ... More Information

Sensors and Soil Treatment at the Pantai Trunk Sewer in Kuala Lumpur

Sensors and Soil Treatment at the Pantai Trunk Sewer in Kuala LumpurIn December 2003, the Sewerage Services Department under the Ministry of Energy, Water and Communication awarded the ... More Information

China Tunnel Summit 2007

China Tunnel Summit 2007The China tunnel summit, to be held in Xi’an on 18th-19th April, will be the opportunity for participants to listen to showcases from the midwest China region; to get ... More Information

Sandvik at Bauma 2007

Sandvik at Bauma 2007Sandvik Mining and Construction will participate at Bauma, from 23rd to 29th April in Munich, Germany. On the outdoor site area F9 (Stand No. 905/2), Sandvik will introduce a ... More Information

San Eduardo Tunnel Under Construction in Ecuador

San Eduardo Tunnel Under Construction in EcuadorThe San Eduardo tunnel project is located in the northwest part of Guayaquil in Ecuador. The length of the twin bored tunnel is 2 x 1.29 km. The ... More Information

4th International Conference on Traffic and Safety in Road Tunnels

4th International Conference on Traffic and Safety in Road TunnelsA fair amount of attention is being paid to tunnel projects with regard to safety. However, despite the application of ... More Information

Robbins TBM Excavates Talave-Cenajo Aqueduct Tunnel in Spain

Robbins TBM Excavates Talave-Cenajo Aqueduct Tunnel in SpainThe objective of the Talave-Cenajo water transfer tunnel in Castilla La Mancha, southeast Spain is to ensure that people living in ... More Information

Lovat TBMs Finish Tizi Ouzou-Algiers Water Transfer Scheme

Lovat TBMs Finish Tizi Ouzou-Algiers Water Transfer SchemeCMC has announced the breakthroughs, ahead of schedule, of the Thenia and Narcira tunnels on the Tizi Ouzou-Algiers water transfer ... More Information

Atlas Copco Puts Productivity on Display at Bauma 2007

Atlas Copco Puts Productivity on Display at Bauma 2007 As in previous years, Atlas Copco's drill rigs will play a central role at the show. For underground drilling, Atlas Copco will ... More Information

Roadheaders Enter in Action on North-South Bypass Tunnel in Brisbane

Roadheaders Enter in Action on North-South Bypass Tunnel in BrisbaneTunnelling is starting at Kangaroo Point on Brisbane's North-South Bypass Tunnel (NSBT) two months early after the delivery ... More Information

North Bore Breaks Through at Piedicastello Tunnel in Trento, North Italy

North Bore Breaks Through at Piedicastello Tunnel in Trento, North ItalyThe objetive of the environmental and urban redevelopment in the Piedicastello area, the re-routing of the Trento ring ... More Information

Madrid's M-30 Motorway on Discovery Channel

Madrid's M-30 Motorway on Discovery ChannelMadrid's inner ring road, the M-30, is the busiest road in Spain. It is famous for its traffic jams and pollution. The chronical traffic crisis had to be ... More Information

SMART Tunnel to Open for Traffic in March

SMART Tunnel to Open for Traffic in MarchKuala Lumpur city centre is flooded by water from the Klang River with increasing frequency when it rains heavily. Traffic grinds to a standstill and ... More Information

Tunnelling News

Westmead metro station cavern formwork the biggest in the southern hemisphere

Crews are now retrieving the 1,200-tonne Tunnel Boring Machines (TBMs) that arrived beneath Westmead in September and October, lifting each machine ... More Information

Webuild: excavation begins on three tunnels for Salerno-Reggio Calabria HS/HC Railway

All four TBMs planned for Lot 1A Battipaglia–Romagnano section are operational with launch of latest three Joining TBM Partenope, already active, are Leucosia and Ligea, whose names were ... More Information

SELI Overseas: 75 Years of Tunneling with TBMs

From Channel Tunnel to the Brenner Tunnel: When Tunneling Is Synonymous with Innovation ... SELI TBM at work on the construction site... More Information

Road realignment is major step for HS2, says firm

HS2 Ltd A view of the realigned B4525 on an overcast day. · HS2 Ltd An aerial view of the construction of Greatworth tunnel showing major earthworks ... More Information

Amtrak has made real progress in East River Tunnel rehabilitation

The tunnel has been stripped down to the concrete liner. Westbrook was told the project isn't just about modernizing and replacing what was, but also ... More Information

Madrid invests EUR 123 million in new metro stations on Line 11

TBM Mayrit enters into action in 2026 · November 2025 – February 2026: assembly of the tunnel boring machine in Comillas Park (Carabanchel district) ... Facebook Twitter Flag as ... More Information

Jerusalem Light Rail Construction Advances Ahead of Major Tunnel Work

Local reporting on city project materials notes that “the plan calls for a 2-km underground tunnel to be built beneath the city center, including ... More Information

Why and how the Civil Works Alliance changed Sizewell C tunnel designs from Hinkley Point C

Ground conditions around Sizewell C have required intense collaboration between the project’s contractors alliance to come up with new outfall and intake tunnel design solutions... More Information

AI planning of the first railway tunnel through challenging terrain

AI plans first rail tunnel through tough terrain. Artificial Intelligence China Uses AI for the Construction of Railway Tunnels. 2025-12-08 ... More Information

Will Tunneling Projects Be The Next Big Thing For Mumbai's Public Transport?

During the interview, she also called tunnel boring machines the safest and one of the most efficient ways of doing tunelling. "Only the place of the ... More Information

Chipolbrok vessels deliver tunnel boring machines to Sydney and mineral bulk to Peru

Chipolbrok delivers TBMs for Sydney Metro on Chipolbrok Star and loads 29000t minerals in Peru on Taixing, showcasing fleet versatility... More Information

How Seequent's software solutions help to manage tunnelling data

The second phase of Singapore's Cross Island Line (CRL) metro project is under way, assisted by a suite of software from Seequent. Singapore's CRL is ... More Information

Muography to Transform Tunnel Safety Monitoring

Underwater bridge tunnels have become vital arteries for cities, enabling smooth vehicular passage beneath rivers, bays, and inland waterways. More than 200 of these structures operate ... More Information

10 longest tunnels in the world that reshaped global transportation

Modern tunnel construction involves sophisticated techniques, including tunnel boring machines and advanced geological surveying. The project ... More Information

Čučković: Construction of the tunnel boring machine for the Belgrade Metro in final phase

It is a good thing that we, for example, acquired these tunnel boring machines at a lower price than other countries... More Information

Serbia plans to borrow 2.5 billion EUR in 2026 for the construction of the Belgrade metro

It is also stated that two TBMs (tunnel boring machines), the so-called moles, have already been ordered and are expected to be delivered to ... More Information

VSM starts operation at Tilbury

The pioneering Vertical Shaft Sinking Machine (VSM) from Herrenknecht, named “Verena”, after Verena Holmes, a pioneering British mechanical ... More Information

Metrolinx reveals names of Ontario Line tunnel boring machines

Following a contest, Metrolinx has officially named its two massive tunnel boring machines Libby and Corkie... More Information

Montreal blue line metro tunnel boring machine has arrived, time to dig

It's basically building the backbone of the blue line extension,” said project chief Maha Clour, pointing out that crews have reached the bottom of ... More Information

Norway Unveils The World's Longest Road Tunnel In A Majestic Engineering Marvel

The construction cost broke down to about 38,000 NOK (roughly £3,500) per meter, an impressive figure considering the complexity and scale of the ... More Information

Sydney Metro West construction captured on video ahead of 2032 opening

Two giant tunnel boring machines have made their way through the deepest section of Darling Harbour as part of works on the new Metro West. More Information

Bengaluru's ₹18,000-crore tunnel road project inches closer as four major firms submit bids

Four firms bid for Bengaluru's ₹18000 crore tunnel project linking Hebbal to Silk Board, expected to ease city traffic by 2029 under a 34-year ... More Information

Webuild advances Rocchetta Tunnel excavation

Upcoming construction milestones. Webuild is preparing for the next major phase on the Apice–Hirpinia section: the launch of the reinforced concrete ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Kathmandu-Tarai Expressway achieves 43.3% progress

The total length of the seven tunnels under the project is 10.979 km. ... Construction progress for the Chandram Bhir tunnel. (2,250 metres) has ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Hong Kong: Robotics And AI Enhance Tunnel Construction

It is leveraging artificial intelligence (AI), robotics and automation to advance the Trunk Road T2 and Cha Kwo Ling Tunnel project. These ... More Information

Single-Bore Tunnel Method Chosen for BART Silicon Valley Phase II

This decision allows VTA to advance project design towards 60%, stay on a critical path to tunnel construction and meet the projected revenue service ... More Information

Boring Co. begins 'controlled blasting' for Nashville tunnel at TN capitol

The Boring Co. has started excavation work at a state-owned parking lot on Rose Parks Boulevard for the Music City Loop project Wednesday, Aug. 13, ... More Information

TBM arrives in Montreal for delayed metro extension project

A custom-built tunnel boring machine (TBM) has arrived in Canada for use on a 6km extension of the Montreal Metro... More Information

Spain Confirms Feasibility of €8.5 Billion Morocco-Europe Tunnel

The study was conducted by German company Herrenknecht, the world leader in tunnel boring machines, at the request of the Spanish government's ... More Information

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

The first tunnel boring machine will be deployed near ... Industry experts say tunnel boring machines typically advance about 50 feet per day. More Information

6 TBMs on Duty on the 27-Kilometer Line in Körfezray

Two of the six Tunnel Boring Machines (TBMs) that will serve in the first 27-kilometer phase are actively excavating tunnels, while the ... More Information

Construction on HS2's Euston tunnel will start 'fairly soon', says rail minister

Construction on the HS2 tunnel from Old Oak Common station to Euston station will start “fairly soon”, the rail minister has said... More Information

Blue Line Extension TBM Arrives at Port of Montreal

Railway Track and Structures Construction site of the future Vertières station (Pie-IX) in June 2025. Caption and photo courtesy of STM. MONTREAL - The tunnel boring machine (TBM) ... More Information

Tunnel break through milestone for Mt Messenger Bypass project

A 110 tonne excavating machine, called Hinetūparimaunga, has broken through at the northern end of the project's 235 metre-long tunnel ... More Information

$3.9 billion tunnel and bridge link for VA

Costing around $3.9 billion, the Hampton Roads Bridge-Tunnel (HRBT) upgrade Expansion project for Virginia will improve traffic flow for a key ... More Information

Extended North Tunnel Flood Mitigation Project Receives $18.2 Million in State Funding

The funding advanced by the board includes a $17.2 million loan and $1 million grant for the construction of the mile-long tunnel, which will divert ... More Information

Gateway Project faces new uncertainty amid government shutdown

Federal funding for the $16B Hudson Tunnel Project, aka Gateway, has been paused during the government shutdown, sparking political backlash. More Information