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

First tunnel completed for Snowy 2.0

First tunnel completed for Snowy 2.0

Main access tunnel  -  On 11th  October 2022 teams from Snowy Hydro and contractor Future Generation Joint Venture celebrated the completion of the excavation of its first tunnel for ... More Information

HS2 Chiltern tunnel – ‘Florence’ and ‘Cecilia’ reach 4 mile point at Chalfont St Giles

HS2 Chiltern tunnel – ‘Florence’ and ‘Cecilia’ reach 4 mile point at Chalfont St Giles

Press Release - Two enormous 2,000 tonne tunnelling machines digging HS2’s longest tunnels passed the second of five ventilation shafts this week, 4 miles into their 10 mile drive under the ... More Information

CRCHI Mega Slurry TBM "Jinghua" Assists the First Tunnel Section Breakthrough of Beijing East Sixth Ring Road Reconstruction Project

CRCHI Mega Slurry TBM "Jinghua" Assists the First Tunnel Section Breakthrough of Beijing East Sixth Ring Road Reconstruction Project

Press release  - In September 2022, the Beijing East Sixth Ring Road Reconstruction Project reported more good news. The CRCHI mega slurry TBM "Jinghua" reached the intermediate air shaft ... More Information

Message from iPS Powerful People

iPS Powerful People are very sad to hear of the tragic event in Creeslough,  County Donegal, We know many people who call Donegal home and it’s difficult to understand how they are ... More Information

Works begin on the PGDL (General drainage plan for Lisbon)

Works begin on the PGDL (General drainage plan for Lisbon)

On 03/10/2022 Carmona Rodrigues, the ex-mayor of Lisbon (CML) who in 2004 had signed the first proposal of the PGDL (General drainage plan for Lisbon), and José Silva Ferreira, general ... More Information

See you at BAUMA 2022!

See you at BAUMA 2022!

Costruzioni Elettrotecniche CEAR will be exhibiting at the 33rd Edition of BAUMA, the World's Leading Trade Fair for Construction Machinery, Buildings, Mining and Construction ... More Information

Turin/Lyon - New milestone in Avrieux

With the completion of excavation of the first 10.5 km of the even-numbered tube of the Mont Cenis Base Tunnel between Saint-Martin-la-Porte and La Praz (in the direction of Paris) - the ... More Information

Innovative Riachuelo Project’s hydraulic tunnel filled

Innovative Riachuelo Project’s hydraulic tunnel filled

The innovative sub-fluvial tunnel near Buenos Aires, part of Lot 3 of the Riachuelo Environmental Restoration Project has been filled by water from the river Plate. This is a sustainable development ... More Information

The 8th edition of the ITA Tunnelling and Underground Space Awards returns this December in a digital format

Since 2015, the international competition seeks and rewards remarkable achievements in tunnelling and the underground industry. Organized by the International Tunnelling and Underground Space ... More Information

ForrestfieldAirport Link - The new Airport Line is ready for take-off

First trains on the Forrestfield-Airport Link, to be known as the Airport Line, will operate on Sunday 09 October 2022! Full services on the Airport Line commence on Monday 10 October. ... More Information

TERRATEC EPBMs ready to tackle Kanpur Metro’s 1st Underground Section in India

TERRATEC EPBMs ready to tackle Kanpur Metro’s 1st Underground Section in India

Gulermak/Sam India JV gets ready to commence tunnelling on the Corridor-1 of Kanpur. MRTS Project in India. TERRATEC celebrated the successful site acceptance testing of two 6.52m diameter Earth ... More Information

Giant HS2 TBM cutterhead’s impressive journey back to start second dig in Warwickshire

After HS2’s first tunnel breakthrough by TBM Dorothy at the south portal site in July this year, the front part of the TBM has been dismantled and transported back to the tunnel’s ... More Information

KonNx launched in the UK

Launched this year, KonNx UK is a subsidiary of AusProof Pty Ltd, the original equipment manufacturer of electrical cable couplers and components. Providing greater accessibility to the KonNx ... More Information

Cross Island Line Phase 2

The Land Transport Authority (LTA) at Singapore announced the alignment and station locations of the Cross Island Line Phase 2 (CRL2) from Bright Hill to Jurong Lake District.   CRL2 is ... More Information

Central Interceptor TBM begins historic tunnelling under Manukau Harbour

Central Interceptor TBM begins historic tunnelling under Manukau Harbour

Last week the TBM EPB Hiwa-i-te-Rangi, involved in the construction of the 14.7-km-long and 4.5m diameter wastewater tunnel from Grey Lynn to Māngere Wastewater Treatment Plant at Auckland, started ... More Information

WTC2023 – Full Paper Submission process will remain open until September 30, 2022

WTC2023 – Full Paper Submission process will remain open until September 30, 2022

The paper submission process is currently underway. Authors with accepted abstracts have already received the link for full paper submission. You may also access the online paper submission form ... More Information

Impreservice srl has expanded the EASY click SMART family

Impreservice srl has expanded the EASY click SMART family

Press  release - Impreservice srl, who were at the WTC 2022. in Copenhagen have expanded the EASY click SMART family with two new variations.    The first is the high ... More Information

Nye Veier recommends a western route for the E6 Nedgard – Toset

Nye Veier recommends a western route for the E6 Nedgard – Toset

Nye Veier - after an evaluation of several route alternatives for the E6 section Nedgard - Toset within the planning area - has chosen two preferred alignments that have been put forward for ... More Information

Sydney Metro West to tunnel under Sydney Harbour

Sydney Metro has received the green light for tunnelling between The Bays and Sydney CBD, completing plans for the 24 km of twin tunnels from Westmead to Hunter Street in the Sydney ... More Information

Rail tunnel to be extended for North East Link

Major works are underway to get ready for construction of the twin 6.5 km North East Link Tunnels to finally fix the missing link in Melbourne’s freeway network.   When North East ... 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

Metro Alger line 1 - first section complete

On 07/09/2022 TBM Kahina broke through into an extraction shaft: click here for the video. This goal successfully concludes the first tunnel Oued Smar –Airport section, 5808 m long, of the ... More Information

Final breakthrough for TBM Dame Whina Cooper

Final breakthrough for TBM Dame Whina Cooper

In the early evening of the 14/09/2022 TBM Dame Whina Cooper (weight 910 t, length 130m and diameter 7.15m) reached the Te Waihorotiu Station (Aotea) completing the second tunnel of the Auckland's ... More Information

Final breakthrough for TBM Dame Whina Cooper

In the early evening of the 14/09/2022 the TBM Dame Whina Cooper (weight 910 t, length 130m and diameter 7.15m) reached the Te Waihorotiu Station (Aotea) completing the second tunnel of the ... More Information

A303 Stonehenge Updates

In response to the Secretary of State’s letter dated 26 August 2022 inviting comments on the Final Report on the joint World Heritage Centre / ICOMOS / ICCROM Advisory Mission to ... More Information

TfL Press Release - Tunnelling underway for new river crossing at Silvertown

Tunnelling of the new public-transport focused river crossing at Silvertown is now underway, Transport for London (TfL) and Riverlinx have confirmed. The 1.4km Silvertown Tunnel will link ... More Information

Pr. Arnold Dix elected ITA President Copenhagen

Pr. Arnold Dix elected ITA President Copenhagen

Professor Arnold Dix has been elected as the new International Tunneling and Underground Space Association President during the association’s 48th General Assembly held in Copenhagen. He ... More Information

Tunnel to ONT Project Takes Initial Steps Forward

At a September 7th meeting, the SBCTA Board of Directors took the initial steps to move forward with the Tunnel to Ontario International Airport (ONT) project in San Bernardino County (California). ... More Information

Call for papers for PIARC’s World Road Congress 2023

The XXVIIth World Road Congress of PIARC Int’l will take place at the Prague Congress Center (PCC) from 2 to 6 October 2023. The Congress theme will be " Together on the Road again". PIARC is ... More Information

STM will be at WTC 2022 in Copenhagen

STM will be at WTC 2022 in Copenhagen

Press release - Next week, in Copenhagen, from the 2nd until the 8th September “WTC 2022” the World Tunnel Congress will take place.   We are thrilled to let you know that STM will ... More Information

First breakthrough in the Lonato tunnel on the HS/HC railway line Brescia Est - Verona

Press release - At the Desenzano del Garda (BS) construction site, TBM Martina (diameter 10 m) completed the first 4751 m of the Lonato tunnel part of the new High Speed / High Capacity railway ... More Information

TERRATEC EPBM breaks through in Thailand helping Samui Island keep its title as a top Asian tourist destination

TERRATEC EPBM breaks through in Thailand helping Samui Island keep its title as a top Asian tourist destination

TERRATEC is proud to announce the completion of Samui Island Water Tunnel Project in Thailand. The tunnel was completed using a refurbished TERRATEC 3.2m diameter Earth Pressure Balance Tunnel ... More Information

Emissions application for the E134 Oslofjord connection under consultation

The Norwegian Public Roads Administration has applied for a permit under the Pollution Act for emissions during construction of the E134 - Oslofjord connection, construction stage 2.  In ... More Information

Milestones achieved on London Power Tunnel 2 project

Two months and two milestones for National Grid team members and the Hochtief Murphy Joint Venture (HMJV) for the London Power Tunnels  2 (LPT2) project.   On the 23/07/2022 the ... More Information

Innovative Design Suggestions Surface for BART Silicon Valley Phase II

On 26/08/2022 a joint committee of VTA and BART Board members will discuss the evolving design of the VTA’s BART Silicon Valley’s extension project into San Jose and Santa Clara: click ... More Information

Strata Worldwide Acquisition Boosts Its Safety and Proximity Detection Portfolio

Strata Worldwide Acquisition Boosts Its Safety and Proximity Detection Portfolio

Press Release - [ATLANTA, GEORGIA, USA] – Strata Products Worldwide LLC, a global leader in industrial communication and safety products has acquired the assets and intellectual property ... More Information

Tunnelling News

Tunnel Boring Machine Emily Passes Key Factory Test for DC Water Potomac River Tunnel Project

Tunnel boring machine (TBM), Emily. This test confirms that Emily is ready to begin excavating the southern leg of the Potomac River Tunnel — a ... More Information

Sydney Metro West achieves world-first in tunnelling technology

Sydney Metro West has achieved a world-first in tunnel construction with a Lining Erector Machine (LEM) successfully being used to line the mined ... More Information

Gateway construction continues despite Trump's claim of termination

Tutor Perini, the general contractor on the Manhattan Tunnel Project, confirmed construction activity is currently continuing as planned... More Information

Tunnelling complete for Annacis water supply project

Metro Vancouver has completed the tunnelling phase of the $450 million Annacis Water Supply Tunnel, which will complete in 2028... More Information

Santa Clara VTA confirms single tunnel plan for BART extension

With VTA now owning the tunnel boring machine, the agency assumes full responsibility for its performance, agency officials said. To manage the risk, ... More Information

Chennai: Tunnel Boring Machine Vaigai achieves breakthrough at Mandaveli Metro Station

CHENNAI: The Chennai Metro Rail Limited (CMRL) on Saturday achieved a major milestone in Phase II tunnelling works, as Tunnel Boring Machine (TBM) ... More Information

Trump 'terminates' $16 billion Hudson River tunnel project linking N.J. and N.Y.C.

President Trump said funding for the $16 billion Gateway Tunnel project is "terminated" at a press conference. New Jersey officials said they will ... More Information

$676 million underwater tunnel for India

The project is expected to cost around $676 million, with a Detailed Project Report (DPR) having now been completed. India's road transport network is ... More Information

€1.4 billion Belgian tunnel project approved

The first phase of the €1.4 billion project for Belgium’s new Limburg Noord-Zuid link has been approved. Construction should commence in 2027 on the project, which will form a section of ... More Information

Tunnel boring machine S-639B achieves breakthrough under Kanpur Metro Phase I Project

The package KNPCC-06 involves design and construction of a tunnel through TBM, cut and cover tunnel, underground ramp from Kanpur Central end of ... More Information

Lawmakers propose construction of undersea tunnel to link Luzon and Visayas

Several lawmakers from the Visayas region are proposing the construction of an underground tunnel that will serve as a permanent land connection ... More Information

Oman-UAE rail project hits major milestone with start of tunnel excavation

Tunnel excavation has begun in Oman's Al Hajar Mountains, marking a major milestone for the cross-border Oman-UAE Railway... More Information

Engineering the depths: innovative tunnelling for hydropower projects

Major schemes in Austria, China, and Germany are applying advanced underground construction techniques for hydropower projects. More Information

New tunnel, new standard: Silvertown project showcases innovation in surface protection

Originally approved in 2018, construction of the tunnel began in March 2021. In September 2023, following the completion of tunnelling works, ... More Information

Metro Manila Subway Project: DOTr launches third tunnel boring machine

Dubai: The Department of Transportation (DOTr) has launched a third tunnel boring machine (TBM) for the Metro Manila Subway Project (MMSP), ... More Information

Skanska JV wraps up $450M Baltimore tunnel nearly 2 years early

A joint venture has reached substantial completion on the $450 million Howard Street Tunnel Project in Baltimore nearly two years ahead of the original completion date, according to a ... More Information

Work continues on NYC megaprojects, despite $18B federal funding pause

Contractors on two of New York City’s largest infrastructure projects will keep digging, but they might glance over their shoulders toward Washington... More Information

HS2 Chipping Warden tunnel project moves step forward

HS2 Ltd An aerial view of the HS2 tunnel construction at Chipping Warden. A road HS2 Ltd. The 1.55 mile (2.5km) Chipping Warden tunnel will be ... More Information

First of three Tunnel boring machines on way to SA as beams go up for tram overpass

The first of three tunnel boring machines that will be used to complete the northern and southern tunnels project is on its way to SA as part of a ... More Information

Chennai Metro Rail's TBMs to begin tunneling between Thiruvanmiyur and Indira Nagar

Chennai Metro Rail begins tunnelling work in challenging stretch for phase II project, facing obstacles due to hard rock... More Information

Custom lifting gantry aids TBM removal - Construction Briefing

The four TBMs excavated the 8.4 mile (14 km) Northolt Tunnel section. Two went in each way, digging a pair of tunnels from both ends towards each ... More Information

Tunnel construction begins on Barskoon — Bedel road in Issyk-Kul region

According to the project, two tunnels, 5,340 and 3,840 meters long, respectively, will be built at Sook and Ashuu-Suu passes. They will be among the ... More Information

China debuts world's mightiest centrifuge, unleashing ultra-intense gravity

China leads the way in shield tunnelling machine development · Shield machine of south line of Yellow River tunnel starts boring in Jinan · A close ... More Information

Boring Company Launches Global Operations Control Center in Bastrop, Texas

The Boring Company has officially opened its new Global Operations Control Centre in Bastrop, Texas, the tunnelling start-up announced on X... More Information

Port of Longview Lands $35.9MM Federal Loan for Rail Expansion

Active Construction on New Hudson Tunnel Project Supporting Domestic Jobs and Economic Output ... Bridges/Tunnels, Class 1, Freight, Ports, Track ... More Information

TBM Parvati Achieves Breakthrough At Kakadeo Station Of Kanpur Metro Line 2

Brief Scope: Design and Construction of TBM Tunnel, Cut and Cover Tunnel, ramp after Double Pullia, ramps in Agriculture Depot for main line and ... More Information

Howard Street tunnel reopens ahead of schedule, boosting Baltimore's freight capacity

The Howard Street Tunnel has been reopened after being out of service since February 2025.The nearly 130-year-old tunnel extends north from Camden Yards to the Mount Royal Station and is ... More Information

Progress update on the Tunnel Boring Machine for National Grid

Following its launch in May this year, Buddug, the Eryri VIP tunnel boring machine (TBM) is making good progress digging the tunnel which will ... More Information

Mumbai-Ahmedabad Bullet Train Project Clears Major Hurdle

After months of delay, the tunnel-boring machine stuck in China is being shipped to India, clearing the path for underground construction of the ... More Information

Bright lights: This Las Vegas tunnel is getting a major upgrade

Construction is underway on Desert Inn Road between Paradise Road and Joe W Brown Drive as part of a $9.2 million improvement project on Friday, ... More Information

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone on Metro Line 3. Auto-dubbed. 398 views · 6 hours ago ...more ... More Information

Major breakthrough achieved in Mumbai-Ahmedabad bullet train tunnel construction

Mumbai: A breakthrough was achieved for a 4.88 km-long tunnel between Shilphata and Ghansoli for the... More Information

New Austrian tunnelling method achieves milestone breakthrough in BKC-Shillphata undersea tunnel project

In a significant milestone for the ambitious undersea tunnel project between BKC and Shillphata, g Method (NATM) has ... More Information

World's Longest Railway Connection Makes Construction Breakthrough

The Brenner Base Tunnel, built deep beneath the Alps, is set to reshape freight and passenger transport across Europe... More Information

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information