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Major breakthrough for Broadway Subway Project 

A first major milestone has been reached by the Acciona Ghella Joint Venture on the Broadway Subway Project. Elsie, the first of two 150-m-long TBMs that began excavating for the Broadway Subway ... More Information

Switzerland - construction update for Isla Bella tunnel on A13 

Press release - On January 26, 2023 the patron saint Santa Barbara blessing was given so construction could begin for the safety tunnel for the Isla Bella tunnel. The tunnelling works will be ... More Information

CRCHI Showcases the overall solution for underground engineering equipment at bauma CONEXPO INDIA 2023

The 6th International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles (bauma CONEXPO INDIA 2023) kicked off on January 31, 2023. China ... More Information

Cross River Rail Project - January/February updates

Cross River Rail Project  - January/February updates

Teams have now completed Woolloongabba - Albert Street and Boggo Road - Woolloongabba sections in both directions, Roma Street to the Northern Portal 1.2 km in the upline and 750 m in the ... More Information

HS2 celebrates as longest tunnels reach halfway point under the Chilterns

On 01 February HS2 Ltd confirmed that Florence and Cecilia, the two giant TBMs driving the HS2 high speed rail project’s longest tunnels, have passed the halfway point of the 16 km (10 ... More Information

State of California Awards EUR344 (USD375 million) for VTA’s BART Project 

On 31/01/2023 the State of California awarded EUR344 million (USD375 million) to the Santa Clara Valley Transportation Authority (VTA) for its BART extension into Downtown San Jose and Santa ... More Information

Cross River Rail Project  - January/February updates 

Teams have now completed Woolloongabba - Albert Street and Boggo Road - Woolloongabba sections in both directions, Roma Street to the Northern Portal 1.2 km in the upline and 750 m in the ... More Information

WTC 2023 - Early Registration Fees deadline extended! 

After many requests, the Early Registration for WTC2023 to be held at Megaron Athens International Conference Centre (MAICC) on 12 – 18 May 2023 has been extended. The new early bird deadline is ... More Information

TERRATEC TBMs - Chennai Metro Rail update

In December, TERRATEC celebrated the assembly of the third of five ordered 6.61m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) for the Chennai Metro Rail project in India. ... More Information

City Rail Link Press Release

Press release - Ngā mihi o te Tau Hou (happy New Year) from the team at City Rail Link! We’re back and ready for a busy year working on the next phase of works – fitting out the tunnels and stations ... More Information

Waterproof shotcrete with self-healing properties to repair and protect the vault of  the tunnel Paradiso 

Waterproof shotcrete with self-healing properties to repair and protect the vault of  the tunnel Paradiso  Press Release - The phenomenon of self-healing of cracks in concrete structures is a ... More Information

First blast for the Hovik tunnel on E18

Skanska Norge AS and the Norwegian Public Roads Administration started  the drill&blast excavation works of the Hovik tunnel on the Strand-Ramstadsletta section of the E18 Lysaker-Ramstadsletta. In ... More Information

Works begin on the Perca bypass ready for Winter Olympics 2026

This month the construction site for the 3 km Perca ring road on the SS 49 in Val Pusteria began preparatory works. The Perca ring road will improve the viability and quality of life of the ... More Information

Tunnelling begins on Scarborough Subway Extension

Tunnelling begins on Scarborough Subway Extension

TBM Diggy Scardust has officially started tunnelling for the Scarborough’s 7.8-km subway extension that will bring subway service farther north into Scarborough and accommodate as many as ... More Information

Kanpur Metro - Second breakthrough on Moti Jheel-Nayaganj underground section

Kanpur Metro - Second breakthrough on Moti Jheel-Nayaganj underground section

On the 17/01/2023 the Joint Venture Gulermak-Sam India reached an important milestone with the breakthrough of the Terratec TBM S92. The breakthrough happened at Nayaganj Station on the 3.62 km Moti ... More Information

Sepulveda Transit Corridor project

Sepulveda Transit Corridor project

Metro will host three community open houses - one of which will be virtual - on January 21, 24, and 26 - for the Sepulveda Transit Corridor Project, which will build a heavy rail line or monorail ... More Information

WTC2023 - Early Registration

WTC2023 - Early Registration

WTC 2023 will be held in a hybrid format. It will mainly be a congress with physical attendance combined with its digital side. Physical participation is encouraged so that this congress marks the ... More Information

Norway - Stad Ship Tunnel supplier conference

To date, in relation to the Stad ship tunnel construction project, about 50 contractors and suppliers have registered for the Supplier Conference. The conference will be held in Gardermoen on the ... More Information

Update for the Lonato tunnel on the HS/HC railway line Brescia East - Verona

On Saturday 7 January 2023, the TBM Martina - diameter 10.03 m, length 150 m and weight 1,750 t - began excavation from the Campagna di Lonato site  of the 4782 m second tube of the Lonato rock ... More Information

The Cairo Metro Line 4 Project

The Cairo Metro Line 4 Project

In December 2022 Eng. Sayed Farouk - CEO & Chairman of the Arab Contractors Company, visited the Cairo Metro Line 4 project to follow up on the work progress. First, there was a meeting to ... More Information

UYAK2023 Deadline Extended

On the request from authors, the full paper submission date of UYAK2023 Symposium has been extended up to January 15, 2023. The full papers of the accepted abstracts should be uploaded to the ... More Information

Normet acquires Finland-based boom systems manufacturer Rambooms and hydraulic attachments supplier Marakon

Press release - Normet has agreed to acquire Rambooms Oy, a manufacturer and supplier of rock breaker boom systems, and Marakon Oy, a supplier of hydraulic hammers and excavator attachments for the ... More Information

Undergraduates offered paid summer placements on HS2

University students who live, or study, in the Midlands are being offered the chance to join HS2’s construction partner Balfour Beatty VINCI (BBV) on an eight-week paid work placement this ... More Information

TBM named for the S19 Rzeszów Południe - Babica expressway

TBM named for the S19 Rzeszów Południe - Babica expressway

The name of the TBM that will drill the 2.2 km long tunnel on the S19 Rzeszów Południe - Babica expressway was recently announced as Karpatka.   A selection of names were chosen by ... More Information

Romania - Last breakthrough for the Batuta tunnel 

In January the excavation of the Batuta railway tunnel was completed. It is part of upgrading of the Frontiera-Curtici-Simeria railway line for trains with a maximum speed of 160 km/h. This ... More Information

Two TERRATEC EPBMS ready for Bangkok flood prevention project

Two TERRATEC EPBMS ready for Bangkok flood prevention project

Two new TERRATEC TBMs will take part in the Khlong Prem Prachakorn Drainage Tunnel Project for the Department of Drainage and Sewage Bangkok Metropolitan Administration (BMA) in Thailand. ... More Information

The Double Shield Hard Rock TBM Jasmine starts drive

On December 7th the first double shield hard rock TBM - named Jasmine after the Philippines’ national flower ‘’sampaguita’’ and imported from China - has started to ... More Information

Chengdu-Zigong High-speed Railway project - Breakthrough in the Jinxiu tunnel

Chengdu-Zigong High-speed Railway project - Breakthrough in the Jinxiu tunnel

Press release - On December 12th - after 14 months of boring - Jinxiu, the China’s largest EPB TBM, developed by CRCHI marked its first major breakthrough in ... More Information

TBM Lilia for Brenner Base Tunnel passes acceptance test

TBM Lilia for Brenner Base Tunnel passes acceptance test

The first of the two TBMs for the H41 Sill Gorge-Pfons construction lot of the Brenner Base Tunnel has formally passed its acceptance test at Herrenknecht AG in Schwanau, Germany. The ... More Information

Switzerland - PoLuMe: given green light from the Federal Council

In its meeting on the 16th December 2022, the Federal Council approved the general project for the upgrading of the A2 motorway from Lugano to Mendrisio (PoLuMe). The total investment amounts to ... More Information

The HRBT Expansion Project - TBM Main Drive Installation update

The HRBT Expansion Project - TBM Main Drive Installation update

Work is progressing on the reassembly and placement within cell 1 of the South Island Launch Pit of TBM Mary with her shield section already to set in place. In the next few days the team will lift ... More Information

This is how Augmented Reality digitalizes Machinery and Plant Engineering at Häny

From article by AUGMENT IT - With Augmented Reality, companies increase efficiency and quality in the inspection processes of Plants and Machines, as the case of Häny AG impressively ... More Information

Terratec TBM S88 Breaks through in Meerut

Terratec TBM S88 Breaks through in Meerut

On the 15/12/2022 Sudarshan 8.1, the Terratec TBM EPB S88, reached the Meerut Central RRTS Station completing the 1823.39 m long tunnel between Bhainsali to Meerut Central Stations (Package 8). ... More Information

A CRCHI Hard Rock TBM has achieved 1000 meters per month in Peru

A CRCHI Hard Rock TBM has achieved 1000 meters per month in Peru

On December 6, the first hard rock TBM exported to South America by CRCHI created an advance rate record of more than 1000 meters per month for the construction of the San Gawang Hydropower Project ... More Information

Patna Metro Rail Project updates

The construction work on the underground section of Corridor 2 in Patna, the capital of Bihar, will soon be on a fast track as two of the four TBMs procured by the Delhi Metro Rail Corporation ... More Information

A new excavation front for the Lyon-Turin tunnel project

The Lyon-Turin base tunnel in France has now commenced excavation in Saint-Julien-Montdenis on construction site n.08 in Villard-Clément. Almost 3 km of tunnels will join the 10.5 km already ... More Information

Tunnelling News

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

Testing completed on Hudson River Tunnel boring machines

The project calls for construction of 9 miles of passenger-rail track between New York ... More Information

World's longest motorway tunnel finally opens in £3BILLION project

The Tianshan Shengli (Victory) Tunnel, located in the Tianshan Mountains of Xinjiang, China, measures some 22 kilometres – roughly 13.75 miles – and ... More Information

Cross-river tunnel of Nanjing Metro Line 4 Phase II completes tunneling

This photo taken on Dec. 27, 2025 shows the rear of the "Xinzhengcheng" tunnel boring machine at the construction site of Nanjing Metro Line 4 ... More Information

Tunnels Design and Construction Market is Going to Boom

HTF Market Intelligence projects that the global Tunnels Design and Construction market will expand at a compound annual growth rate (CAGR) of 6.80% from 2025 to 2032, from 72 Billion in ... More Information

Longest tunnel in the world costing £7billion will connect 3 European cities

The Brenner Base Tunnel is currently under construction and will connect the countries of Austria and Italy. The impressive tunnel, which is set ... More Information

Georgian Officials Mark Completion of Railway Modernization, Hoping to Boost Transit

The works also included the construction of the 8,300-meter dual-tube tunnel near Kvishkheti, 10 bridges, six tunnels, and around 100 engineering ... More Information

Israeli municipality approves budget for new tunnel project south of Jerusalem

The Jerusalem Governorate said that the project aims to connect the Har Homa settlement, built on Jabal Abu Ghneim land, to the Begin bypass road near ... More Information

Megaprojects Under Construction Around World In 2026

Described as the largest road tunnel in the U.K., the Lower Thames Crossing will link Tilbury in Essex via a tunnel underneath the Thames with ... More Information

Delhi Metro expansion: Cabinet approved Rs 12,015 crore project

The project, planned over a construction timeline of three years, will be executed largely underground using tunnel boring machines to minimise ... More Information

World's Longest Expressway Tunnel to Open, Linking North and South Xinjiang

Engineers used innovative methods and specially designed machines called tunnel boring machines (TBMs) to dig through hard rock faster and safer than ... More Information

The huge £21bn mega-tunnel that goes right through the middle of a mountain

Huge boring machines will create a 57.5km (35.7mile) tunnel through the Alps to connect French and Italian high-speed rail networks and link Lyon ... More Information

Rome digs deep for railway that burrows beneath the Colosseum

Tunnellers used lasers to check whether ancient columns at the nearby Forum were not wobbling as their 300ft long tunnel boring machine churned ... More Information

World’s largest-diameter high-speed railway shield tunneling machine reaches milestone

The world's largest-diameter high-speed railway shield tunneling machine independently developed by China, “Linghang,” for the Chongming-Taizhou ... More Information

Third circuit on £1bn London Power Tunnels 2 project energised

Electricity has begun flowing through a new section of National Grid's London Power Tunnels 2 (LPT2) project after the energisation of a ... More Information

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