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Production of segments completed in Ahrental for the Austrian H41 construction site of the Brenner Base Tunnel

Production of segments completed in Ahrental for the Austrian H41 construction site of the Brenner Base Tunnel

On Saturday 19 July, production of the precast concrete segments used by the TBMs for the final lining of the line tunnels were completed at the Ahrental plant located  near the Austrian H41 ... More Information

Delhi Metro Rail Project update

The Delhi Metro Rail Project marked another significant milestone as Afcons Infrastructure’s Tunnel Boring Machine (TBM) Disha (1264B) achieved a breakthrough at the Tughlakabad Railway Colony ... More Information

ITA Awards 2025 Finalists Announced

After rigorous adjudication by the Panel of Judges, the Finalists of the 2025 series of the ITA Tunnelling Awards has been announced. From a short list of 51 entries from 27 ... More Information

TBM replaced by traditional method on a 500 m section on the south side of Second Gotthard tunnel

In February 2025, excavation work began on the construction of the second tube of the Gotthard motorway tunnel. While the TBM on the north side is progressing steadily, on 23 June 2025 it was ... More Information

Italy - Gran Sasso Tunnel: measures to accelerate upgrading activities

The green light has been given for work on the Gran Sasso Tunnel to begin. They had needed to comply with current technical regulations on the tunnels safety in the trans-European road network ... More Information

Construction Begins on Cross Island Line Phase 2

The Land Transport Authority (LTA) has commenced civil construction works for Phase 2 of the Cross Island Line (CRL). Acting Minister for Transport Jeffrey Siow officiated the ground-breaking ... More Information

First Scheldetunnel Element Successfully Immersed in Antwerp

DEME Group has announced a major milestone in the construction of the Scheldetunnel, part of the Oosterweel Link in Antwerp. The first of eight prefabricated tunnel elements has now been ... More Information

Underground Breakthrough for €114M Athlone Drainage Project

The €114 million Athlone Main Drainage Scheme has recorded a successful breakthrough on its second underwater tunnel beneath the River Shannon—marking a significant milestone in the ... More Information

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Tunnelling News

Completion of hyperbaric excavated tunnel marks major milestone for Naples-Bari rail project

The construction of the Casalnuovo Tunnel, a critical and technically challenging segment of the high-speed railway line between Naples and Bari ... More Information

Multraship tugs support Antwerp Scheldt tunnel construction

Tugboats are supporting the construction of a motorway tunnel in the River Scheldt in Antwerp by towing and manoeuvring concrete structures and ... More Information

Europe's $45BN Mega Tunnels through the Alps

Discover the record-breaking network of tunnels being constructed beneath the Alps. This video explores the top 6 longest tunnels in the region, .. More Information

AFRY secures contract for Switzerland's Twann Tunnel project

Construction oversight of the Twann Tunnel in the country. The tunnel on the Lake of Bienne is intended to ease traffic congestion in Twann by ... More Information

Line 5 Tunnel Project: Public comments now open for proposal to build under Straits of Mackinac

"The purpose of the project is to facilitate the construction of a tunnel beneath Lake Michigan bottomlands to replace the Line 5 dual pipelines ... More Information

ECRL Breakthrough: Genting Tunnel Becomes SEA's Longest Rail Tunnel

Genting Tunnel's construction used both Tunnel Boring Machines (TBM) and traditional drill-and-blast methods. The TBMs, built in China and ... More Information

Sydney tunnel factory creates 700 manufacturing jobs

The factory will support two of the largest tunnel boring machines (TBMs) in the Southern Hemisphere, set to arrive later this year. Once ... More Information

2.7 km Breakthrough Achieved in Bullet Train Tunnel

The tunnel also features a 7-kilometre undersea stretch beneath Thane Creek, a first of its kind in India. To ... More Information

Australian-first Sydney tunnel fabrication facility opens

The tunnel boring machines are expected to arrive in Sydney later this year, before being assembled deep underground below Birchgrove. They will ... More Information

ECRL Breakthrough: Genting Tunnel Becomes SEA's Longest Rail Tunnel

Genting Tunnel's construction used both Tunnel Boring Machines (TBM) and traditional drill-and-blast methods. The TBMs, built in China and ... More Information

4000-tonne machines dig arterial route under Melbourne's west

The West Gate Tunnel Project is in full swing beneath Melbourne's inner west, with tunnel boring machines (TBMs) Bella and Vida at the helm... More Information

Gotthard drilling machine gets no further - now it has to be blown up

Forced break in the Gotthard road tunnel: After 190 meters, the drilling machine working on the second tube has come to an end for the time being... More Information

Construction begins on 6 Cross Island Line Phase 2 stations

Tunnel Boring Machine measuring 12.8m in diameter. The machine will “bore through the ground only once for the construction of the tunnel which ... More Information

Tunnel boring machine returns after installing $22 million outfall

A 19.5 tonne tunnel-boring machine docked at Onehunga Wharf on Friday afternoon after successfully tunnelling the $22m Clarks Beach Outfall over ... More Information

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

U.S. Tunneling Professionals Convene in Dallas at RETC 2025

The event drew approximately 1,400 people. Another highlight of the conference was the presentation of the now annual Underground Construction ... More Information

Construction of NY and NJ GatewayTunnel hits halfway mark

People are looking down at the ground from the Highline on Manhattan's West Side. Some parts of the new train tunnel structure ... More Information

Silicon Valley BART extension seeks new tunneling contractor

Silicon Valley BART extension seeks new tunneling contractor for construction. Maguire told reporters during a briefing Monday morning. He noted that VTA is trying to fill a $1.2 billion ... More Information

Tunneling In The Digital Age: Rethinking Subsurface Infrastructure

But successful construction is just the start of the journey. Underground infrastructure is a long-term investment—just look at the London Underground ... More Information

Sydney Moves Forward with Final Tunnelling for Harbour Project

Sydney prepares for the arrival of the largest TBMs in the Southern Hemisphere as the Western Harbour Tunnel project enters its final tunnelling ... More Information

Metrolinx seeks help to name 2 of its massive Ontario Line tunnel digging machines

Metrolinx is now accepting names for two of its giant tunnel boring machines (TBMs), which will be used for twin 16-metre-deep and six-kilometre-long ... More Information

Deutsche Bahn awards contract for Munich S-Bahn project

The contract involves structural works for the expansion, including the construction of tunnels and an underground station. The Tunnel Ostbahnhof JV, ... More Information

Excavation completed on Italian side of Brenner Base Tunnel

The tunnel boring machine (TBM) named “Flavia” successfully bored through the Alps beneath the Mules 2–3 section, reaching the Austrian border. More Information

Giant tunnel borer set for Shantou Bay project

A giant tunnel boring machine has been installed for tunnelling under Shantou Bay in Shantou, South China's Guangdong province. [Photo provided to ... More Information

€0.4bn road and tunnel project in Georgia

Work is proceeding on the Kvesheti-Kobi road and tunnel scheme in Georgia. The scheme is part of a larger project, being carried out with Chinese ... More Information

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

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Denmark, North Jutland

dk/35
Motorway

Closing Date: 29/08/2025

Danish Road Directorate (DRD) is carrying out a market dialogue regarding the Third Limfjord ...
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Czech Republic, South Bohemia

cz/46
Railway

Closing Date: 31/07/2025

Postponed to 31/07/2025 the deadline of the open invitation to tender for the modernization of ...
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Czech Republic, Central Bohemia

cz/44
Motorway

Closing Date: 12/08/2025

Open invitation to tender, deadline 12/08/2025, for the supplementary geotechnical ...
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Germany, Munich

de/102
Ring Road

Closing Date: 21/07/2025 (Tender Closed)

Open invitation to tender, deadline 21/07/2025, for the refurbishment and adaptation of all ...
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France, Paris

fr/21
Orbital Motorway

Closing Date: 25/08/2025

Restricted invitation to tender, deadline 25/08/2025, for the detailed periodic inspection of the ...
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Switzerland, Canton Neuchatel

ch/72
Road

No winner has been selected for the open procedure, deadline 26/06/2025, for the supply, ...
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Switzerland, Gotthard

ch/50
Highway

Closing Date: 26/08/2025

Open invitation to tender, deadline 26/08/2025, for the design of the Airolo junction ...
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Netherlands, Rotterdam

nl/17
Railway

Closing Date: 22/09/2025

Restricted invitation to tender, deadline 22/09/2025, for engineering services for the ...
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Spain, Madrid

es/184
Road

Closing Date: 09/07/2025 (Tender Closed)

Open invitation to tender, deadline 09/07/2025, for the supply of electricity for public ...
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Poland, Warsaw

pl/15
Ring Road

Closing Date: 05/08/2025

Open invitation to tender, deadline 05/08/2025, for the Technical‑Economic‑Environmental ...
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Spain, Gijion

es/73
Railway

Closing Date: 02/09/2025

Open invitation to tender, deadline 02/09/2025, for technical assistance during monitoring and ...
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Czech Republic, Prague

cz/22
Ring Road

Closing Date: 21/07/2025 (Tender Closed)

Open invitation to tender, deadline 21/07/2025, for the repair of selected technologies in the ...
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Czech Republic, Moravian - Silesian

cz/35
Motorway

Almapro in Prague with the subcontractors K.B.K. fire in Ostrava - Prívoz, Amberg ...
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Germany, Baden-Württemberg

de/177
Railway

DB Engineering & Consulting GmbH in Berlin and BauIN Consult GmbH - bei Eric Tessmar in ...
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Czech Republic, Prague

cz/24
Metro

Inset Sro from Prague secured the EUR 338,062 (CZK8.33 million) contract, excluding VAT, for ...
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Poland, Lodz - Masovia

pl/18
High Speed Railway

Budimex S.A. from Warsaw secured the EUR 711,000 (PLN3.02 million) contract, ...
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Austria, Salzburg

at/96
Road

Oestu-Stettin Hoch- und Tiefbau GmbH from Leoben secured the EUR 2.25 million contract, ...
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Austria, Salzburg

at/101
Road

Strabag Infrastructure & Safety Solutions GmbH from Thalgau secured the EUR 1.25 million ...
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Spain, Guadarrama

es/16
High Speed Railway

The Joint Venture Tunel Guadarrama composed of Construcciones Rubau SA and Izer Ingenieria y ...
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Switzerland, Zurich - Thawil

ch/13
Railway

DE_B + S AG from Bern secured the EUR1.79 million (CHF1.67million) contract, excluding VAT, for ...
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Poland, Lodz - Masovia

pl/18
High Speed Railway

The company PORR secured the EUR400 million (PLN 1.7 billion), excluding VAT, contract for the ...
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Romania, Oltenia and Banat

ro/24
Railway

Ic Ictas Insaat SanayI Ve Ticaret AS (Istanbul, leader) and Rotary Constructii Mentenanta ...
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Germany, Baden Wurttemberg

de/15
Highway

BERNARD Gruppe ZT GmbH from Munich secured the contract for the management of waste material, in ...
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Italy, Rome

it/81
Metro

The joint Venture Salcef SpA  from Rome (leader) and Imaf Srl from Silea (Treviso) secured ...
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September 17 - 18, 2025

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ACUUS 2025

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Eurasia Water Expo

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Australasian Tunnelling Conference

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BAUMA CHINA

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