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Brazil - Breakthrough at the Analia Franco station of the São Paulo Line 2 extension

Brazil - Breakthrough at the Analia Franco station of the São Paulo Line 2 extension

On 27 June, the TBM Cora Coralina, broke through at the Analia Franco station, the second TBM for the extension from Vila Prudente to Penha of the São Paulo Metro Line 2-Green. The TBM - ... More Information

Western Sydney Airport metro tunnels complete

Western Sydney Airport metro tunnels complete

Press release - Greater Western Sydney is now home to landmark new 9.8-kilometre twin metro railway tunnels, with major tunnelling officially complete on the city-shaping Sydney Metro – ... More Information

TERRATEC EPBM to build Klong Saen Saeb Drainage Tunnel in Thailand

TERRATEC EPBM to build Klong Saen Saeb Drainage Tunnel in Thailand

A new TERRATEC TBM will take part in the Klong Saen Saeb Drainage Tunnel Project in Thailand. TERRATEC celebrated the successful Factory Acceptance Tests of a new 4.27m diameter Earth Pressure ... More Information

USA/California - Caltrans Selects Tunnel Alternative for Last Chance Grade Project

Last Chance Grade (LCG) is a 4.83 km (3-mile) segment of US 101 just north of Wilson Creek, between Klamath and Crescent City. Landslides and road failures have been an ongoing problem for decades ... More Information

LEEA Builds #GLAD2024 Content to Finale

LEEA Builds #GLAD2024 Content to Finale

Press release - The Lifting Equipment Engineers Association (LEEA) has revealed more plans for Global Lifting Awareness Day (GLAD) on 18 July. A multidimensional campaign has been running since the ... More Information

VTA Celebrates its West Portal Groundbreaking Milestone for BART Silicon Valley Phase II Extension Project

VTA Celebrates its West Portal Groundbreaking Milestone for BART Silicon Valley Phase II Extension Project

On Friday, June 14th Santa Clara Valley Transportation Authority (VTA) held a historic ground breaking ceremony to mark the start of construction of its West Portal facility. This is the site where ... More Information

June updates for BBT

Press Release - H53 Pfons-Brenner construction site: the first segments reach the construction site The two TBMs Wilma and Olga - which from September 2024 will dig and line the twin tube 7.5km ... More Information

CM Lafer Srl equipment for new Himalayan railways in India

Italian company CM Lafer Srl in collaboration with Indian company Eurostar Engineering Pvt-Ltd has completed the supply of 30 formworks for in-situ final lining of tunnels excavated with NATM system ... More Information

Italy/Trentino-South Tyrol – Work has started on the southern entrance to the Trento railway bypass

Work continues on the construction of 13 km (Lot 3A) of the new railway line - almost entirely underground – linking to the future Brenner Base Tunnel. The new infrastructure will begin from ... More Information

MTBM Victoria completes its digging for Central Interceptor Project at Auckland

MTBM Victoria completes its digging for Central Interceptor Project at Auckland

Victoria, the smallest of the three TBMs working on Watercare’s Central Interceptor project, has completed her micro-tunnelling work beneath Auckland and joined Domenica at the finish ... More Information

Switzerland – Inauguration of the new Albula railway tunnel

Switzerland – Inauguration of the new Albula railway tunnel

On Saturday 8th  June 2024 - at the Preda portal at 1,800 meters above sea level - the Rhaetian Railway (RhB) officially inaugurated the new Albula railway tunnel (5860 m).  The ... More Information

Brenner Base Tunnel update

Brenner Base Tunnel update

Every year BBT organises an Open Day for the Brenner Base Tunnel project. They take place at the Austrian construction site H41 Sill-Pfons Gorge, and at the construction site of the Eisack ... More Information

Green light for funding for Point Erin Central Interceptor tunnel project extension

Green light for funding for Point Erin Central Interceptor tunnel project extension

Funding has been confirmed to extend the Central Interceptor wastewater tunnel by more than 1 km from Grey Lynn to Point Erin, Herne Bay. This will  reduce wet weather overflows and ... More Information

Federal Government Greenlights $6.8B Funding for Gateway Tunnel Project

The long-awaited Gateway Tunnel project is officially moving forward. The $16 billion initiative has secured a $6.8 billion full-funding grant from the federal government, marking a significant ... More Information

Three tunnels done and dusted for Sydney Metro – Western Sydney Airport, one to go!

Three tunnels done and dusted for Sydney Metro – Western Sydney Airport, one to go!

Press release - Mega tunnel boring machines (TBMs) Catherine, Eileen and Peggy have completed their historic journeys to build metro rail tunnels for the Sydney Metro – Western Sydney Airport ... More Information

Grand Paris Express - TBM Awa ready to start for West section of Line 18

On Wednesday 29 May 2024, the Société des grands projets christened Awa, the latest TBM for Line 18.  In June, Awa will start digging - from the future Guyancourt station - a 6.7 ... More Information

HS2 Updates

HS2 Updates

Chiltern tunnel TBMs dismantled - The Dismantling of the two Herrenknecht TBMs - 170m long and weighed 2,000 t - that built HS2 (High Speed Two) Ltd’s Chiltern Tunnel have now been ... More Information

TBM Futura to drive the Rocchetta tunnel on the Naples-Bari HS/HC railway line

Futura will is the name of the second TBM used for the construction of the new Naples-Bari line. The TBM, whose name was chosen by the pupils of the E. Faceltti elementary school in Apice (BN), ... More Information

WTC2025 - Abstract submission deadline extended!

After a successful first call for abstracts WTC2025 is pleased to announce the deadline for submissions has been extended until Thursday June 13th. Take this opportunity to share innovative ideas, ... More Information

Slovenia - Breakthrough of longest railway tunnel in the country!

Slovenia - Breakthrough of longest railway tunnel in the country!

On 29 may 2024 Kolektor Construction and Euro-Asfalt completed excavation of the sixth and longest tunnel of the 2TDK project providing a second track between Divaca and the port of Koper. This ... More Information

TBM Jessie ready to be launched for Sydney Metro West towards Sydney’s CBD

TBM Jessie ready to be launched for Sydney Metro West towards Sydney’s CBD

TBM Jessie,  the first TBM for the Sydney Metro West - Eastern Tunnelling Package,  is about to be launched. It will carve out a 2.3-km tunnel from The Bays to Hunter Street in the ... More Information

Two CRCHI TBMs Launched from opposite directions of the World's Longest Subsea Tunnel

On May 16th, two super-large diameter slurry TBMs, developed by China Railway Construction Heavy Industry Corporation Limited (CRCHI), were launched from opposite directions in Ningbo and Zhoushan ... More Information

BBT - TBM Ida reaches first 3 km of excavation for Lot H41 Sill-Pfons Gorge

On 14 May 2024  the TBM Ida, launched back in June 2023, reached its first 3 km of excavation towards the south, in the West line tunnel, advancing an average of 13 m/day and extracting ... More Information

Final breakthrough for TBM Renny digging the Eglinton Crosstown West Extension

Final breakthrough for TBM Renny digging the Eglinton Crosstown West Extension

Renny, the last West End Connectors’s TBM on the Eglinton Crosstown West Extension (ECWE) project, has officially completed its 6.3-km journey from Renforth Drive to the extraction shaft, ... More Information

Transition Completes the Silvertown Tunnel

Riverlinx CJV - the construction joint venture of Ferrovial Construction, BAM Nuttall and SK ecoplant working on behalf of Transport for London - completed construction works for the connections ... More Information

BTS 2024 Conference & Exhibition - Registration is open

The BTS 2024 Conference and Exhibition is the largest gathering of tunnelling professionals in the UK. Taking place on October 8th – 9th, 2024 at the QEII Conference Centre, Westminster, ... More Information

Hyperbaric excavation for the Casalnuovo tunnel on the HS/HC Napoli-Bari line

Webuild, which was awarded the contract by Rete Ferroviaria Italiana (RFI) for the Naples-Cancello lot of the Naples-Bari high-speed/high-capacity railway line, is using hyperbaric excavation ... More Information

Registration now open for ‘Open Days’ at the Modane construction site

Press release - For the first time, the Villarodin-Bourget/Modane underground construction site, where part of the Mont Cenis base tunnel, at the centre of the new Turin-Lyon railway line, is ... More Information

Italy/Sicily: TBM Margherita reaches 1 km of advancement on the Ogliastrillo-Castelbuono section

  At the beginning of May, the TBM Margherita (10 m in diameter and 140 m long) reached 1 km of advancement in the excavation of the odd-numbered track tube of the 6.87 km-long, ... More Information

Final breakthrough for Roseto 1 tunnel, Megalot 3, SS 106 in Italy

Final breakthrough for Roseto 1 tunnel, Megalot 3, SS 106 in Italy

On 10 May 2024 the last northbound piece of the twin-tube rock Roseto 1 tunnel (1.2km) was demolished. The tunnel will be completed using concrete and pre-cast concrete segments for the final ... More Information

Georgia - TBM Caucasus completes 9km tunnel for the Kvesheti-Kobi highway

Georgia - TBM Caucasus completes 9km tunnel for the Kvesheti-Kobi highway

On 23 May 2024 the single shield hard rock TBM, manufactured by CREG and named Caucasus, completed the excavation of the 9 km tunnel, connecting the village of Kvesheti with the village of Kobiin, ... More Information

Toulouse Metro - Line B connection.

Work on the Connexion Ligne B is progressing! On Wednesday 15 May - after three months of work - the TBM Clemence Isaure - 30 m long, 5.28 m in diameter and reconditioned by the BESSAC company ... More Information

The ITA tunnelling awards 2024 - Call for entries

The 10th edition of the ITA Tunnelling Awards will take place in Genoa (Italy) on November 28, 2024 at the occasion of the ITA and SIG 50th anniversary celebration organized by the Italian ... More Information

Updates on Watercare Services Limited’s Central Interceptor Project

Updates on Watercare Services Limited’s Central Interceptor Project

In a significant milestone, the TBM Hiwa-i-te-Rangi, nearly 200 meters in length, has successfully breached into a shaft at a depth of 47 meters below ground. This achievement took place at the ... More Information

INTERMAT 2024: an edition driving progress and promoting business

The 2024 edition of the tradeshow, with its redesigned offering and format, registered over its four-day duration 127,500 entries, 21% of which from outside France and from 130 countries. A total ... More Information

TBM for Santiago metro line 7 begins operation in Renca

On Monday 06 May 2024 the ministry of transportation and Santiago metro witnessed the launch ceremony of the TBM EPB christened La Matucana, after an avenue in Quinta Normal municipality. The ... More Information

Tunnelling News

Hong Kong West Drainage Tunnel

Arup is the consultant to the Hong Kong Drainage Services Department in carrying out the design, pre-qualification, tender and construction ... More Information

Lane JV Wins Tunnel Package for Hudson River Tunnel Project Valued at $466 Million

CHARLOTTE, NC – The Lane Construction Corporation, the U.S. subsidiary of Webuild Group, has won a $466 million contract, of which Lane has a 35% share, to construct the Palisades Tunnel ... More Information

World’s biggest developers eye bids for Dublin MetroLink contracts

A consortium made up of some of the biggest infrastructure developers in the world has formed in preparation to bid for contracts to build and operate the long awaited MetroLink rail line ... More Information

The Boring Company's Prufrock-3 completes Las Vegas tunnel

The tunneling startup did not share the length of the tunnel that ... construction projects with speed and automation. This is highlighted by ... More Information

Coastal road phase 2: Mumbai's second twin tunnel to pass under rivers, mangroves

As part of phase 2 of Mumbai's Coastal Road Project, a 22.93 km high-speed corridor linking Versova with Dahisar will be created. More Information

Rock tunnel for £1.7bn Norway road scheme takes shape

The consortium responsible for the construction of a new road system in Norway has excavated approximately 500m of a new 1.9km long tunnel... More Information

Tunnel boring machine reaches halfway point on HS2's route into Birmingham

Balfour Beatty VINCI is celebrating a key milestone in the construction of HS2's gateway to Birmingham. The joint venture today (Thursday 29 ... More Information

Gateway Development Commission secures $3.8B in funding for Hudson Rail Tunnel project

The money is the final funding piece for the $16 billion project to build a new rail tunnel that will carry Amtrak and New Jersey Transit trains under ... More Information

TBM Zelda starts on 6.5km Melbourne tunnel

The 4,000t machine is the first of two TBMs that will excavated a section of the project's twin road tunnels in the city's suburbs. Named after local ... More Information

Tunnels of the Future: Key Innovations and Projects at InnoTrans 2024

BBT SE, responsible for the construction of the Brenner Base Tunnel, will provide details on its ambitious project. This 55-kilometer tunnel is ... More Information

Hudson tunnel contract awarded

Webuild's Lane, ACS firms win $466 million Hudson Tunnel contract tunnels as part of the Hudson Tunnel Project in the New York City area, the Italian construction group said on Thursday. More Information

All women crew to build SRL tunnels

Crews are moving underground services and building tunnel boring machine launch sites, preparing sites for major construction. Suburban .. More Information

Officials break ground on one of world's longest underwater rail tunnels connecting 2 major cities

This tunneling project, which is part of the larger Mumbai-Ahmedabad HSR corridor spanning 315.66 miles, is part of an effort to reduce the ... More Information

Severn Trent unveils huge 25m deep new storm tank to ease flooding and prevent spills

Four tunnel boring machines were used to install the new sewer pipes under the town to minimise disruption, as well as lining 1km of old brick ... More Information

Here's how downtown Toronto's first subway tunnel in over 60 years will be dug

Crews are now drilling deep into the soil around the launch shaft ... Once piling is complete and this massive pit is dug, tunnel boring machines ... More Information

LTA awards S$199M contract for Maju-Clementi rail tunnels and S$400M for Cross Island

Construction will use a slurry tunnel-boring machine due to the hard sedimentary rock in the area. LTA has assured that rigorous safety measures ... More Information

Northside Interceptor Tunnel named after local environmental advocate

The machine will be named “Elaine” after environmental advocate Elaine Marsh. A tunnel boring machine is used to excavate tunnels through hard ... More Information

Tunnelling works complete on NI Water's £7.8m wastewater upgrade at Meadow Lane

The 25-tonne Tunnel Boring Machine (TBM) broke through to the new stormwater storage tank to complete this significant element of work. The new ... More Information

The longest railway tunnels in the world

The three rail tunnels have a diameter of 7.6 m, while the service tunnel has a diameter of 4.8 m. A total of 11 tunnel boring machines (TBM) dug the ... More Information

Reusing dirt and rock as we build the North East Link tunnels

As the TBMs dig underground, excavated dirt and rock is moved via an enclosed conveyor system that crosses high ... More Information

Nanjiao-Xichang section of tunnel

Guangzhou International Guangzhou International Recently, the right-line tunnel boring machine (TBM) tunnel of the Nanjiao-Xichang section (hereinafter referred to as the "Nanxi ... More Information

Fehmarn Belt Tunnel opening set for mid-2029

This reduces waste and simultaneously strengthens the supply security for the project by producing steel grids to size and on demand. Setting up for ... More Information

HRBT Expansion Project's first gantry extracted and lifted

Mary the Tunnel Boring Machine exited the tunnel and made her U-turn back in June. Work on the second tunnel will begin in September of this year... More Information

Gateway Board Forms Search Committee for CEO to Lead $16B Tunnel Project

The Gateway Development Commission, which leads the $16.1-billion Hudson Tunnel Project between New Jersey and New York, has launched a board ... More Information

Costain awarded £6.6m by Thames Water to upgrade Hertfordshire treatment sites

Costain, the infrastructure solutions company, has been awarded a contract with Thames Water to upgrade strategic treatment assets in Markyate and Brickendon in Hertfordshire... More Information

National Grid switches on first 2.5km circuit of £1bn London Power Tunnels 2

The LPT2 project has seen 32.5km of new tunnels bored under the capital city between Wimbledon and Crayford to host a new high voltage 275kV network. The 3m diameter tunnels were bored by ... More Information

_Goregaon-Mulund Link Road Nears Completion, Set To Cut Travel Time To 25 Minutes

The tunnels, which will be excavated using a tunnel boring machine with a diameter of approximately 14.2 metres, will be equipped with lighting ... More Information

Snowy 2.0 Tunnel Boring Machines Update

The Snowy 2.0 project continues to make significant strides with its Tunnel Boring Machines (TBMs) advancing the construction of critical ... More Information

Vancouver's Broadway subway tunnel boring equipment arrivin

The tunnels will serve all six stations of the Millennium Line SkyTrain extension project, from Great Northern Way to Arbutus Street. Each boring ... More Information

IN MEMORIAM - OLIVIER VION (1962-2024)

Through the past decades, the energy and foresight to lead the management of the ITA International Tunnelling and Underground Space Association has been in the hands of Olivier Vion, a man ... More Information

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