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TBM Wilma is ready for the Brenner Base Tunnel

TBM Wilma is ready for the Brenner Base Tunnel

On 8 march 2024 BBT SE and H53 Consortium consisting of Porr Bau GmbH, Marti GmbH Austria and Marti Tunnel AG Switzerland completed the factory acceptance of Wilma. This will be the first of the two ... More Information

BBT - New milestone for the TBM Ida on the H41 Sill-Pfons Gorge construction site

The TBM Ida in the H41 Sill-Pfons Gorge lot of the Brenner Base Tunnel is continuing its journey through the westbound line tunnel in a southerly direction.  On Sunday, 25 February 2024, ... More Information

BBT - Take part in choosing the names of the two new TBMs for the Brenner Base Tunnel

Until 12 noon today, 22 February, you can participate in the choice of names for the two 160 m long TBMs that will come into operation in autumn 2024 for the excavation of the Austrian Pfons-Brenner ... More Information

Scaleres tunnel’s TBM assembled

In the ongoing construction of the Scaleres tunnel's the Tunnel Boring Machine (TBM) on the Fortezza-Verona line in Italy, SELI Overseas, a specialized subcontractor for the Munich-Verona railway ... More Information

BBT - Updates on the Brenner Base Tunnel

Hochstegen: Another construction lot of the Brenner Base Tunnel is now complete  The Swietelsky Tunnelbau company, which in 2021 secured the EUR102 million contract for the construction ... 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

BBT - TBM Virginia has reached the border with Austria

On 28/03/2023 an important milestone was reached for the Brenner Base Tunnel, on the Italian side, at the Mules (BZ) construction site.  After 14 km of excavation and almost 4 years of ... More Information

TBM Ida will drive the west main Brenner Base Tunnel

On the 14/02/2023 the official inspection of the second TBM for the H41 Sill Gorge-Pfons construction lot of the Brenner Base Tunnel took place at Herrenknecht AG in Schwanau (D). The ... More Information

BBT - Segments production started for lot H41 Sill Gorge-Pfons

The main part of tunnels in lot H41 Gola del Sill-Pfons will be driven by two TBMs. The machines - during their tunnelling - will install the rings, composed of prefabricated concrete ... 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

SAIE 2022 - The SIG (Società Italiana Gallerie) tunnelling area

SAIE 2022 - The SIG (Società Italiana Gallerie) tunnelling area

Press release - Among the various special initiatives that uniquely characterize the SAIE 2022, the Construction, Design, Building and Plants’ Fair - in BolognaFiere from 19 to 22 October, ... More Information

BBT - excavations begin for lot H41 Sill Gorge-Pfons

BBT -  excavations begin for lot H41 Sill Gorge-Pfons

Excavation work has begun on the main tunnel for BBT construction lot H41 Sill Gorge-Pfons, in Ahrental near Innsbruck. The Austrian Federal Minister Leonore Gewessler the patroness was ... More Information

BBT – Breakthrough in the Brenner Base Tunnel

BBT – Breakthrough in the Brenner Base Tunnel

On the 19/05/2022 at 13h45 an excavator broke through between lot H71 Eisack undercrossing (built by Webuild) and Lot Mules 2-3 (built by Webuild and Ghella), on the Italian side of the East line ... More Information

BBT – Excavation has started at the H52-Hochstegen construction lot in Austria

On 04/05/2022 a ground breaking ceremony was held for Lot H52 Hochstegen in the presence of Maria Lorenzatto, godmother of the tunnel, along with the various authorities and companies involved. The ... More Information

BBT - Breakthrough under Isarco river

BBT - Breakthrough under Isarco river

On 07/04/2022 about a month after the start of the excavation work, the last main tunnel below the Eisack riverbed for the future railway Brenner Base Tunnel has broken through.   A total ... More Information

Progress report for the Brenner Base Tunnel

As of January 2022, 4 main construction lots are under construction: Mules 2-3, Isarco River Underpass (Italian project area); Sill gorge, Sill gorge - Pfons (Austrian project area).  In ... More Information

BBT - Exploratory tunnel excavation completed

On the 24/11/2021 TBM Serena with a diameter of 6.85m, a length of approximately 300m and weight 1,500 t has reached the Brenner Pass. The TBM has excavated over 14 km of tunnel in 3.5 years. The ... More Information

Brenner Base Tunnel - Update of Total Project Costs

On the 07/09/2021, after the approval of the updated construction programme, approval was also obtained for the total costs of the BBT project, which had been updated to take the following issues ... More Information

Brenner Base Tunnel: Breakthrough of first main tunnel below the Isarco river

Brenner Base Tunnel: Breakthrough of first main tunnel below the Isarco river

On 19/04/2021 - about one month after construction works started, they broke through. The works were below the riverbed of the Isarco river for the future Brenner Base Tunnel railway. Excavation ... More Information

Ground freezing begins for the first main tunnel for the BBT Isarco River Underpass

In the town of Fortezza works on the Isarco River Underpass construction site, which is the southernmost construction lot of the Brenner Base Tunnel, are proceeding at full speed. Two 25 m deep ... More Information

BBT - First breakthrough under the Isarco river

 BBT - First breakthrough under the Isarco river

On  the 6th of November 2020 an excavator with hydraulic hammer  broke through  the first 59 m tunnel under the Isarco river. The ground in the most southern construction lot of the ... More Information

BBT - Isarco river underpass tunnelling begins

BBT - Isarco river underpass tunnelling begins

After months of preparation on the Isarco River Underpass construction site, the excavation of the first few metres of the tunnel has begun.   The excavation works in this southernmost ... More Information

Verona-Fortezza access line part of the BBT

The new Brenner Base Tunnel, which is the responsibility of BBT, is being built to boost the capacity of the Verona-Fortezza access line from the south, which is being built by RFI. The line is ... More Information

Brenner Base Tunnel project - Breakthrough

Brenner Base Tunnel project - Breakthrough

On 06/07/20 the TBM Gunther, tunnelling from Ahrental (Innsbruck) in the north completed its 16.7 km long exploratory tunnel. The TBM averaged 11 m of tunnelling per day. The breakthrough, ... More Information

Brenner Base Tunnel 50% complete

Brenner Base Tunnel 50% complete

On the 29th of November 2019 the Brenner Base tunnel reached a milestone and is now 50 % complete. So far they have tunnelled 150km of the 230km needed to finish the project. The Brenner Base Tunnel ... More Information

The Brenner Base Tunnel company has new leadership

The Brenner Base Tunnel company has new leadership

Starting on September 18th, 2019 Martin Gradnitzer and Gilberto Cardola will take the helm of the Brenner Base Tunnel cross-border project company  in Austria and Italy, replacing  the ... More Information

Press release for BBT

Press release for BBT

Breakthrough in the Tulfes–Pfons section - On February 12th, 2019, the last breakthrough by blasting took place in the Tulfes-Pfons section. On that occasion, a small ceremony was held for ... More Information

Brenner Base Tunnel - European support for the project

Brenner Base Tunnel - European support for the project

Following the recent breakthrough of the southern portal of the Brenner Base Tunnel, European Commissioner for Transport, Violeta Bulc, visited the BBT construction sites near Fortezza. The ... More Information

Brenner Base Tunnel Breakthrough

Brenner Base Tunnel Breakthrough

On St Barbaras day the 4th of December 2018 the southern portal of the Brenner Base tunnel near Fortezza Station broke through. 93 km of the total 230 km that will make up the Brenner Base tunnel ... More Information

Open Tunnel Day: Ahrental - Aldrans - Ampass, September 16th, 2018

This year, you have the unique chance to visit the entire underground area between the Ahrental access tunnel, Aldrans and Ampass and to see the different steps required to build a tunnel lining ... More Information

Thimble Shoal Tunnel

The TBM Chessie, that was custom-made by Herrenknecht for Dragados USA Inc and Schiavone Construction Co. LLC, is now ready to begin construction of the New Tunnel under the Thimble Shoal Canal in ... More Information

Brenner Base Tunnel update

FLAVIA” joins “VIRGINIA” The last large component of the TBM “Flavia” has arrived at the Mules construction site. A short video shows the long journey that began ... More Information

Brenner Base Tunnel Update

Brenner Base Tunnel  Update

The first 100 m of Exploratory tunnel had started being excavated for the Brenner base tunnel overnight the 24th  and 25th  May. The TBM Serena started at the beginning of May, has now ... More Information

Revised proposals for the construction of Parallel Thimble Shoal Tunnel submitted

Revised proposals for the construction of Parallel Thimble Shoal Tunnel submitted

On the 15.07.2016 the Chesapeake Bay Bridge and Tunnel Commission announced that the revised technical proposals were submitted from all three teams in the competitive procurement to construct a new ... More Information

Isarco River construction update

Isarco River construction update

On the 12.07.2016 the groundbreaking ceremony was held for the main works for the Isarco River Underpass construction lot. This is at the southernmost part of the Brenner Base Tunnel just before the ... More Information

Six offers for Lot Mules 2-3 of the Brenner Base Tunnel

BBT received tenders from the following 6 groups for the construction of Brenner Base Tunnel, Lot Mules 2-3: Astaldi SpA, Ghella SpA, Oberosler Cav Pietro SpA, Cogeis SpA, PAC SpA; ... More Information


Tunnelling News

Morocco’s proposed $13 billion underwater tunnel to connect Europe to Africa by 2030s

An historic intercontinental rail link is aiming to link Europe to Morocco with an ambitious underwater tunnel. The Moroccan National Company for Strait Studies (SNED) announced last ... More Information

Government set to fund £1bn final HS2 London tunnel drive

The project was halted as part of Prime Minister Rishi Sunak’s £6.5bn cost-cutting plan announced last October. This involved axing phase 2 to Manchester and finding a private investor ... More Information

HS2 Project Update, May 2024

Our Victorian railways have carried us successfully through history, but with passenger numbers continuing to rise, investing in new, modern railway lines like HS2 is the key to meet the ... More Information

PM inaugurates breakthrough of Sunkoshi Marin Diversion tunnel

A breakthrough of the Sunkoshi Marin Diversion Multi-purpose Project tunnel has been made... More Information

Toronto's Eglinton Crosstown extension moves closer to tunnelling completion

The project is being delivered by Infrastructure Ontario and Metrolinx. West End Connectors was awarded the C$729M (£425M) contract to design, build ... More Information

_Fehmarnbelt tunnel program hits major milestone

DEME Group said that the Fehmarnbelt tunnel project, one of Europe's largest infrastructure projects, has achieved a significant milestone with ... More Information

The incredbile new £12bn mega-tunnel that could end traffic chaos in world famous city

Construction on the £12.63 billion mega-tunnel has already begun and it is expected to be open in 2035. · Animation for The Hudson River Tunnel project. More Information

Great Lakes Tunnel Project makes progress

Ready to move forward. Enbridge is preparing to begin tunnel construction as soon as possible, following receipt of environmental permits ... More Information

Hudson Tunnel Project is expected to create 95,000 jobs

The report is based on research done on behalf of the Gateway Development Commission. “The Hudson Tunnel Project is the most pressing infrastructure ... More Information

The $2.8BN Megaproject Dividing London

London is building a controversial new tunnel under the River Thames. Head to https://brilliant.org/TheB1M/ for a 30-day free trial + the first 200 people will receive 20% off their ... More Information

Namma Metro: Underground tunnel work on Pink Line 95% complete

This underground portion includes the ambitious task of constructing 20.992 km of twin tunnels. Progress is also underway on the construction of 18 ... More Information

How an ancient water tunnel design is cooling 21st-century streets

In Seville, 3,000-year-old underground technology is being transformed in modern day air-conditioning. An aqueduct at the unopened CartujaQanat pilot ... More Information

Frederick Douglass Tunnel Program B&P Tunnel Replacement Project

Project Description: Proposed utility and roadway relocations include civil work to support the construction of Amtrak's Frederick Douglass Tunnel. More Information

Fehmarnbelt | Purpose-built vessel arrives to line tunnel trench with gravel 'cushion'

The Fehmarnbelt Fixed Link is a new road and rail tunnel being constructed between Denmark and Germany. It will comprise 89 precast concrete ... More Information

Successful Breakthrough of Gudauri Tunnel in Georgia's North-South Corridor KK Highway Project

KAZBEGI, Georgia, April 23, 2024--The 10-kilometer LOT1 Section is constructed by China Railway Tunnel Group Co., Ltd., of which the Gudauri ... More Information

Construction of Shinku La Tunnel to bolster all-weather connectivity in Ladakh Rising Kashmir

Leh, Apr 21: Member of Parliament from Ladakh, Jamyang Tsering Namgyal, announced that work on the strategically vital Shinku La Tunnel is set to ... More Information

Tunneling works for key Davao bypass road seen completed this year

The Davao City Bypass Construction Project is among the 14 foreign-assisted infrastructure projects approved by the National Economic Development ... More Information

Hamptons Subway Cuts Ribbon on New Foxwoods Tunnel

Hamptons Subway, with U.S. Transportation Secretary Pete Buttigieg, cut the ribbon to begin construction of the new tunnel from Sag Harbor to ... More Information

_TBM quartet tackles differing geology on twin bore tunnel under London

All four tunnel boring machines are now working on HS2's Northholt tunnel, which is divided into two geologically differing sections. More Information

CRCHI video

New CRCHI video for world leading underground equipment - Technology innovates the world... More Information

Deer Creek update

Exciting update from the Deer Creek project team! The Wasatch Worm is almost in the ground and will be ready to start tunneling this week. Over the next few months, it will be devouring a ... More Information

Stonehenge tunnel: Underground cabling installed, while other enabling works paused

The scheme, which involves the construction of a new 12.8km two-lane dual carriageway with a 3.2km tunnel under the Unesco World Heritage Site, was ... More Information

Nepal's first transport tunnel being built with Japanese assistance

Nepal and Japan signed the contract for construction of the tunnel on September 23, 2019, while the commencement started on November 14, 2019. More ... More Information

Cowi selected as technical advisor on world's first ever ship tunnel proposed in Norway

Construction is currently estimated to begin next year. The objective of the Stad Ship Tunnel project is to improve the navigability and safety of ... More Information

How Arnold Dix became a Himalayan hero after rescuing 41 workers from Indian tunnel collapse

Arnold Dix slid his hand into a gap in the rock at the entrance to a tunnel where 41 men were trapped alive, put his back against the cold stone and listened, and felt, and listened some ... More Information

Central Interceptor Tunnel Boring Machine

Watercare Services Limited’s Central Interceptor Tunnel Boring Machine, Hiwa-i-te-Rangi, has achieved a significant milestone, reaching 10,000m (10 kilometres) since leaving Māngere in ... More Information

New tunnelling machine joins three others digging high-speed line under London

Construction of the new HS2 line has hit another major milestone with the launch of the fourth – and final – machine being used to build the giant Northolt Tunnel beneath the capital... More Information

Lower Thames Crossing planning decision moves a step closer

On 21 March, the Planning Inspectorate confirmed that the Examining Authority has sent their recommendation report on the Lower Thames Crossing Development Consent Order (DCO) application ... More Information

AECOM-Jacobs JV signs on to $6B Amtrak tunnel job

Amtrak is gearing up to dig deep in Baltimore. The railroad company selected ADVANCE, a joint venture between Dallas-based infrastructure firms AECOM and Jacobs, to serve as the delivery ... More Information

Lower Thames tunnel boosts new orders data

UK construction contract awards reached their highest level in February 2024 for seven months, according to one of the industry's data monitoring ... More Information

The incredible new £53m tunnel in Spain linking two pretty cities

The work is part of efforts to modernise the railway line between Ourense and Lugo in the autonomous Galicia region. Spanish construction giant ... More Information

ECRL hits new milestone with the completion of three tunnel excavations in Bentong district

The ECRL project features the construction of 41 tunnels with a total length of approximately 69 km along its rail alignment. Section A (Kota Bharu- ... More Information

Boring Co. receives go-ahead to drill more Vegas Loop tunnels

LVCVA President and CEO Steve Hill offered the company access to safety officers after the company was fined $100000 for construction violations ... More Information

Biden-Harris Administration Announces Nearly $4 Billion in Support

The project includes construction of a new two-track heavy rail tunnel along the Northeast Corridor from the Bergen Palisades in New Jersey to ... More Information

World's Longest Twin-Lane Tunnel Inaugurated In Arunachal Pradesh

Constructed by the Border Roads Organisation (BRO) for INR 825 crore, the tunnel is strategically vital due to its proximity to the Line of Actual ... More Information

The £13.3bn tunnel 8.5 miles long that could transform one of the world's biggest cities

The Second Avenue Subway's per-mile construction cost is higher than that of other projects in similar cities like London's Crossrail and Paris's ... More Information

First look inside Silvertown tunnel as TfL confirms summer 2025 opening

... tunnel construction in the face of environmental concerns. Construction is costing about £1bn – with a further £1.2bn due in annual repayments ... More Information

Consortium of Aecom and Arcadis appointed to tunnel and station design contract for Ontario metro

The scope of work for the PTUS contract includes construction of 3km of twin tunnels underneath Pape Avenue between the Gerrard tunnel portal and ... More Information

Snowy Hydro is inching towards powering the nation

... tunnelling progress of one of its critical boring machines ... Some 80 metres underground in temperatures well in excess of 30C, tunnel boring machine ... More Information