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

Lafontaine protection

Lafontaine protection

The1.8 km-long Louis-Hippolyte-La Fontaine Tunnel in Montreal is the only underwater tunnel in Quebec. Opened in 1967, the tunnel connects the south shore of the Saint Lawrence River to the Island ... More Information

Ahrental work starts

The Brenner Base Tunnel, the 64 km-long heart of the new Brenner rail line between Munich and Verona, is progressing apace, with work starting on the Ahrental main tunnel in Austria. Many important ... More Information

Seymour-Capilano completion

The Twin Tunnels project on the North Shore is nearing completion near Vancouver, Canada. Two tunnels, 3.8 m in diameter and 7.1 km long, have been constructed beneath Grouse Mountain and Mount ... More Information

HDD crew required

HDD crew required

International recruitment specialists iPS are looking for experienced horizontal directional drilling personnel for a four-week assignment near Calgary, Manitoba, Canada. Click here for further ... More Information

Val Sarentino tunnels update

Val Sarentino tunnels update

On 16.03.2015 the EUR14.2 million fourth part of SS 508 Val Sarentino upgrading project starts, including the final work in the 1,520 m-long and 2 km-long tunnels constructed by Consorzio Stabile ... More Information

SR-710 North EI Studies

Four years ago, the California Department of Transportation (Caltrans) and the Los Angeles Metropolitan Transportation Authority (Metro) began studying the environmental impacts of continuing the ... More Information

North West Rail

North West Rail

In Sydney, Australia on 02.03.2015 Florence, the second North West Rail Link TBM, broke through into the new Norwest Station area. All four 900 t TBMs are now in the ground ahead of schedule and ... More Information

SR 99 disassembly underway

SR 99 disassembly underway

TBM Bertha reached her stopping point in the SR 99 tunnel access pit in Seattle, US on 03.03.2015, clearing the way for Seattle Tunnel Partners to begin a disassembly process that will likely take ... More Information

Tunnels and Underground Construction 2015

The abstract submission deadline for Tunnels and Underground Construction 2015has been extended to 31.03.2015. The conference will be held at the Holiday Inn, Zilina, Slovakia. Contact ... More Information

Turin Collegno-Cascine Vica

Last 17.02.2015 the City Council approved the final project of Collegno-Cascine Vica section, Line 1 of Turin metro. The project will be now evaluated by other authorities and MIT (Ministry of ... More Information

Turin metro start

Work is underway on the Lingotto-Bengasi (Line 1) section of the Turin underground. On 07.07.2014 Infra.To awarded to C.C.C. (Consorzio Cooperative Costruzioni), replacing Seli/Coopsette JV, the ... More Information

Follo Line award

Follo Line award

Companies from all over Europe and Asia will participate in the Follo Line Project in Norway, a 22 km-long double track line between Oslo Central Station and the public transport hub at Ski. Key to ... More Information

Promoter for Lyon-Turin HSR

Promoter for Lyon-Turin HSR

On 24.02.2015 Maurizio Lupi, the italian Minister of Infrastructure and Transport, and  Alain Vidalies, the French Secretary of State for Transport, signed in Paris an integration to the 2012 ... More Information

Call for papers ISTSS 2016

Call for Papers for the 7th International Symposium on Tunnel Safety and Security (ISTSS 2016), to be held Montreal, Canada, 16 - 18th March 2016 is now open. Manuscripts and posters submitted for ... More Information

Robbins revives NY EPB

Robbins revives NY EPB

On 28.01.2015 the 3.8 m-diameter TBM EPB Pat completed the last metres of the 2.9 km-long tunnel between Brooklyn and Staten Island. The tunnel, part of the New York City Harbor Siphons Project, is ... More Information

CAIS – Compress Air Intervention System

CAIS – Compress Air Intervention System

Compressed Air Work GmbH has developed the first mobile automated system for decompression chambers for personnel known as CAIS – Compress Air Intervention System. Fundamentally, the system ... More Information

Five CIFA Spritz Beton machines for the Brenner Base Tunnel

Five CIFA Spritz Beton machines for the Brenner Base Tunnel

Work on the tubes of the Brenner Base Tunnel is in full swing on different fronts. Excavation of the new Tulfes-Pfons section officially began on 18.09.2014. In 5 months, at 16.02.2015, ... More Information

Shenzhen metro lines progress

Construction on the extensions of seven lines to add 87 km to the Shenzhen, China metro system will start between 2015 and 2017. The Shenzhen Rail Construction Office plan for this third phase of ... More Information

Waterview progress

Waterview progress

In Auckland, NZ, by early-February, 2015 Waterview TBM Alice had advanced 125 m from the northern approach trench, in the second of the motorway tunnels, the northbound tunnel. When the TBM reaches ... More Information

Surfacing Bertha

Surfacing Bertha

In Seattle, WA contractor STP is making final preparations for TBM Bertha’s move into the 36.57 m-deep pit from which the machine will be hoisted to surface for repairs. STP has injected grout ... More Information

Marao tunnel restarts

Marao tunnel restarts

Last November, in northern Portugal, the consortium Teixeira Duarte/EPOS started completion work on the bi-tube 5.7 km-long Marao tunnel. Work on the missing link on the 32 km-long A4/IP4 connection ... More Information

Intermat in Paris

Intermat 2015, the international exhibition for equipment and techniques for the construction and materials industries, will take place 20-25th April, 2015 at Paris Nord Villepinte, France. Online ... More Information

NorthConnex financing

On 02.02.2015 the contracts between the proponents Transurban and Westlink M7 shareholders and the NSW Government were signed on the $3 billion NorthConnex project, which will be funded through toll ... More Information

Cityringen metro update

Cityringen metro update

On 29.01.2015 TBMs Eva and Minerva arrived at the station box at Copenhagen Central station of the Cityringen metro circle line. The 15.5 km-long automated metro line is due to open in July 2019, ... More Information

Breakthrough at Karaula

Breakthrough at Karaula

Excavation works at the 902 m-long Karaula tunnel, section Kladanj-Podpaklenik, which lies on the M-18 Sicki Brod-Sarajevo road have been completed, with the official ceremony held on 28.01.2015. ... More Information

Breakthrough in Basci

Breakthrough in Basci

Driving and lining works have been completed in the 530 m-long Basci tunnel, on the new Aurelia road section from Albisola to Savona in Liguria, Italy. The Consortium Letimbro, headed by CMC, ... More Information

Cross Harbor Freight

The Cross Harbor Freight Program (CHFP) aims to improve the movement of freight across New York Harbor between the east-of-Hudson and west-of-Hudson regions. Ten viable build alternatives have been ... More Information

Midtown immersed tube

Midtown immersed tube

The new Midtown Tunnel is currently under construction at Sparrows Point, MD, US. The tunnel is comprised of 11 concrete elements, which, once complete, will be towed down the Chesapeake Bay to the ... More Information

Northern Line extension funded

Northern Line extension funded

On 29.01.2015 the European Investment Bank announced it will provide GBP480 million for the extension of the Northern Line to Battersea. The long-term loan represents nearly 50 percent of the ... More Information

Crossrail progress

Crossrail progress

On 29.01.2015 the TBM Elizabeth (1,000 t weight and 7 m diameter) successfully broke into the eastern end of Liverpool Street Crossrail station in London, UK. The breakthrough, 40m beneath the City, ... More Information

Scarborough Subway extension in Toronto

Scarborough Subway extension in Toronto

The City of Toronto, together with the Toronto Transit Commission (TTC), is planning an extension to the Bloor-Danforth Subway (Line 2) to better serve Scarborough’s 650,000 residents. The ... More Information

Milestone for Eglinton Crosstown

Milestone for Eglinton Crosstown

The two TBMs driving the western segment of the 10 km-long underground tunnel on Toronto’s Eglington Crosstown reached the half-way point of their journey on 21.01.2015, breaking through into ... More Information

Bohai undersea tunnel

Bohai undersea tunnel

The National Development and Reform Commission (NDRC), China's economic planner, agreed to review and support the high-speed railway project under the Bohai sea connecting Dalian in Liaoning ... More Information

Varese orbital opening

On 24.01.2015 the 4.9 km-long first lot of Varese orbital motorway opened between A8 interconnection at Gazzada Schianno and Vedano Olona near Varese municipality. More Information

Tunnels and Bridges

Tunnels and Bridges

The APAC tunnels and bridges conference is scheduled for Kuala Lumpur, Malaysia on 15-16th April, 2015. Themes are design, construction, maintenance and inspection, with 23 speakers from government ... More Information

Engineering underground space in London

The one-day ICE conference on this topic takes place on 18.02.2015 at One Great George Street, Westminster. It will explore the solutions and opportunities that underground space presents for ... More Information

Tunnelling News

'Hi-tech' tunnelling machine utilised at landmark Scottish Water project in Glasgow

A tunnel boring machine (TBM) has been used to complete the installation of a key part of a new trunk water main ... More Information

Construction of parallel Thimble Shoal Tunnel halted after underwater discovery

“It's not unheard of, but it's not every time you go out with a TBM (tunnel boring machine),” he said. The discovery pauses tunneling until February ... More Information

US construction firm bags £169M contract for Ohio overflow sewer

The Northside Interceptor Tunnel (NSIT) project is designed to prevent combined sewer overflows from entering the Cuyahoga River during storms. More Information

Drone video shows Hampton Roads Bridge-Tunnel expansion progress

VDOT officials provided drone footage from June showing the progress on the project. Check out how the work is progressing in the video above... More Information

Go Ahead for 68 Mile Hyperloop Tunnel but "Public Transit" element remains a "Concept"

The Boring Company's planned expansion for the Loop has received approval from the Las Vegas Council. The initial plan for the Vegas Loop was only for 51 stations and 29 miles... More Information

Cleveland's $3B Project Clean Lake Features Large-Scale Storage Tunnels

Designed to reduce pollution in Lake Erie by four billion gallons per year, Project Clean Lake is a 25-year plan being overseen by Cleveland's Northeast Ohio Regional Sewer District ... More Information

North-South Corridor: Torrens to Darlington section

The Australian and South Australian governments are delivering the final and most complex section of the North-South Corridor... More Information

HS2 TBMs complete three quarters of Chiltern tunnels

The two tunnel boring machines (TBMs) delivering the longest tunnels on the High Speed 2 (HS2) railway have passed the three quarters mark. More Information

Main tunnelling at Silvertown Tunnel now complete, photos reveal

It can be revealed that both boreholes of the Silvertown Tunnel are now complete, after a Green politician spotted the tunnel boring machine on the north bank of the Thame... More Information

Breakthrough in evacuation route of Nepal's first tunnel project achieved

The Nagdhunga-Sisnekhola tunnel, the first-ever road tunnel construction project in Nepal, made a major breakthrough in the construction of the ... More Information

Dubai seeks firms for $22bn tunnels project

Dubai Municipality has invited firms to express interest by 11 August in bidding for the contract to provide project management consultancy for deep tunnels and sewage treatment plants ... More Information

Al Fateh Highway tunnel in Bahrain set to open partially

A tunnel is set to partially open to traffic as part of the multi-million dinar revamp of one the major arterial thoroughfares in the heart of the capital. Work of the project is ... More Information

Campaign launched by Shetland Islanders to construct tunnel links

Residents of the Shetland Islands are hoping to push forward plans to construct subsea tunnels to improve transport across the Scottish islands... More Information

Silvertown Tunnel cut and cover sections progress

Work has ramped up on the cut and cover section at the tunnel's south entrance on the Greenwich peninsula, since the arrival of tunnel boring machine. More Information


Tunnel-boring machines (TBMs) have emerged as the safest tunneling method in a context of technological advances in geotechnical engineering, ... More Information

Vizhinjam railway tunnel, third longest tunnel in country, to adopt Austrian tunnelling method

Instead of using the expensive tunnel boring machine (TBM), Vizhinjam International Seaport Limited (VISL) which is implementing the Vizhinjam ... More Information

Wynn is 'making progress' on underground connection to Convention Center

Wynn Las Vegas announced that the Boring Company's Prufrock-2 tunnel boring machine has surfaced at the resort, completing construction on a ... More Information

HS2 Launches Procurement Process for Automated People Mover

A tunnelling milestone for HS2: the tunnel boring machine Dorothy has broken through on the second bore of the Long Itchington Wood tunnel. Siemens ... More Information

Future of Tunnelling | Four High Speed 2 twin bores progressing well despite challenges

Work on High Speed 2's Euston Tunnel construction might have halted, but the construction of the other twin bore tunnels for the project is ... More Information

Afcons Achieves Another Breakthrough with TBM Sudarshan 8.1 at Begumpul RRTS Station

Afcons Infrastructure reaches a significant milestone with the second tunnel breakthrough of Tunnel Boring Machine S88 in Package 8 of the ... More Information

Skanska completes £1.4bn Los Angeles light rail project

The project consisted of a 1.76km long, 6.4m diameter tunnel excavated using a Herrenknecht tunnel boring machine between Union station and the ... More Information

Tunnel boring machine 'MudHoney' reaches destination in Wallingford

SEATTLE — MudHoney, an 18-foot diameter tunnel boring machine, finished its journey in Seattle from Ballard to Wallingford on Monday... More Information

Longest Victorian road tunnels take shape for North East Link project

The Victorian government says North East Link tunnels are now well ... new 6.5 kilometre road tunnels, with two massive tunnel boring machines to ... More Information

By mid-2024, Mumbai-Pune Expressway will have world's widest tunnels

For the tunnels, controlled blasting has been used instead of tunnel boring machines (TBMs), due to the Austrian blasting method's superior speed ... More Information

New funding secured for research into Morocco-Spain underwater rail tunnel

The Europe-Africa Gibraltar Strait fixed link project would amount to the construction of an underwater tunnel housing a high-speed rail link. More Information

Progress on HS2’s Copthall Green Tunnel as Western portal is complete

Engineers working on the HS2 project are celebrating progress as they have completed the western portal of the Copthall Green Tunnel. Located in Hillingdon, the 880m long tunnel structure ... More Information

How India's first underwater metro tunnel was built in record 66 days

India's first underwater metro tunnel is expected to be opened by December this year. It was built about 30 ... World Record in Road Construction. More Information

Gateway Commission Releases Shortlist for $16B Hudson River Tunnel

The commission has said major construction could start as soon as next year, which would put it on track to complete the new tunnel in 2035 and to ... More Information

Groundbreaking Ceremony Held for Nordhavn Tunnel, Copenhagen's New Infrastructure Marvel

It is constructed by a joint venture between Besix and MT Højgaard. The Nordhavn Tunnel will extend the existing Nordhavnsvej tunnel, ... More Information

Tunnelling teams sought for priority Toronto subway extension project

17 MAY, 2023 BY NIA KAJASTIE The Ontario government has kicked off the procurement process for the construction of the Yonge North Subway Extension tunnels. The Yonge North Subway ... More Information

Work commences on new 1.4km road tunnel in Copenhagen

A ground breaking ceremony has been held for the Nordhavn Tunnel, a new 1.4km road tunnel in central Copenhagen being constructed by a Besix - MT ... More Information

Toronto is building a massive $380 million tunnel spanning over 3 kilometres

Construction of the Fairbank Silverthorn Storm Trunk Sewer System project surpassed a key milestone on Monday, when a tunnel boring machine was ... More Information

TBM breakthrough on Grand Paris Express Line 16

Work on Lot 2 of Line 16 of Grand Paris Express metro is now 83% complete, following the breakthrough of a tunnel boring machine (TBM) at Sevran... More Information

The Largest Inner City Tunnel In Greece Is Coming

The extension will include a large tunnel, which will be the largest ... The last section of the route (1 km) will be flat road construction and ... More Information

Elon Musk's Boring Company Just Got the Green Light to Expand Its Las Vegas Tunnel Network

Kirkpatrick was also worried about construction around the airport and wanted to make sure the company had obtained the necessary approvals from ... More Information

NYC's $16 Billion Gateway Tunnel Wins Key Access at Hudson Yards

The construction of New York City's new $16.1 billion rail tunnel took a major step forward Tuesday when the commission overseeing ... More Information

India's First Undersea Twin Tunnels

Twin Tunnel Mumbai: More than two years after 35 men and a giant Chinese Tunnel Boring Machine began cutting though complex geological strata, ... More Information

_TBM “Mireille” completes excavation on Line 16 of Grand Paris Express

The breakthrough by TBM "Mireille" completes the first 5.3 kilometres of the tunnel work connecting Chelles with the municipality of Sevran, resulting ... More Information

Elephant & Castle station tunnelling tender launched

Transport for London has kicked off procurement for the tunnelling works ... and civils construction, and stage two involving the station fit-out. More Information