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

Tutor Perini Subsidiary Secures $1.1 Billion Contract for New York's Vital Water Tunnel Project

Frontier-Kemper Constructors, an Indiana-based construction company and subsidiary of Tutor Perini, has been awarded a $1.1 billion contract by the New York City Department of Environmental ... More Information

Snowy 2.0 Project – tunnel breakthrough!

On October 14th, a significant achievement was made in the Snowy 2.0 project with the breakthrough of the 216-meter tunnel connecting the water intake at the upper Tantangara reservoir to the gate ... More Information

Gates open on London's New super sewer heralding new era for the Thames

Gates open on London's New super sewer heralding new era for the Thames

Press release -  London’s super sewer, designed to protect the River Thames from sewage pollution well into the future, has now been turned on. In May 2024, the new 25km super sewer was ... More Information

Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

 Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

On October 16, 2024, tunnel boring machine (TBM) Ruby began its journey to carve out the final section of the Sydney Metro West project, marking a significant step for this city-shaping ... More Information

First Train Enters Cross River Rail Tunnel for Critical Testing

On October 18, 2024, a significant milestone was reached for the Cross River Rail project as a test train entered one of the project’s twin tunnels and arrived at a new underground station ... More Information

United States - TBM Mary restarted for HRBT project

United States - TBM Mary restarted for HRBT project

The TBM - six months to the day since it broke through the headwall at HRBT North Island - is on the move again. Mary began boring a twin eastbound towards Norfolk shortly after 17th October ... More Information

Turin/Lyon – Updates October

RFI - Turin-Lyon: legality protocol signed for the construction of the Italian section On 18 October 2024, the Legality Protocol was signed between the Prefecture of Turin, Rete Ferroviaria ... More Information

Italy/Tuscany - Voting is open for the name of the second TBM of the High-Speed Railway Bypass in Florence

From October 15th until October 28th, you can vote to choose between the four possible names - Marika, Toscana, Bianca and Viola - of the TBM that will excavate the second tunnel, (the odd track), ... More Information

Turin Metro Line 2: A Major Opportunity for the Local Economy

Turin Metro Line 2: A Major Opportunity for the Local Economy

On September 30, 2024, more than 150 companies from the Piedmont region, along with several major international firms, attended the conference "Opportunities for the Local Economy," focused on the ... More Information

Milan Expands Metro System with Completion of Line 4’s Final Stretch

Milan Expands Metro System with Completion of Line 4’s Final Stretch

On October 12, 2024, Milan celebrated the inauguration of the final section of its Line 4, also known as the Blue Line, connecting San Babila to San Cristoforo. This stretch, which adds 13 new ... More Information

Key Developments in the $16 Billion Hudson River Tunnel Project

Key Developments in the $16 Billion Hudson River Tunnel Project

The Hudson Tunnel Project, a $16.1 billion initiative, is making significant progress in enhancing rail links between New Jersey and New York City. As part of the larger Gateway Program, this ... More Information

Vietnam’s High-Speed Railway Project: A Leap Toward Modern Connectivity

Vietnam’s High-Speed Railway Project: A Leap Toward Modern Connectivity

Vietnam is embarking on an ambitious journey to revolutionize its transportation system through the development of a comprehensive High-Speed Railway (HSR) project. This multi-part initiative will ... More Information

CRCHI TBM Exported to Switzerland Begins Operations

CRCHI TBM Exported to Switzerland Begins Operations

On September 29th, at the Ingenbohl construction site, approximately 70 kilometers from Zurich, Switzerland, a new double-shield hard Tunnel Boring Machine (TBM), designed and manufactured by China ... More Information

Lower Thames Crossing - Government extends planning deadline

On Monday 7 October, the Secretary of State for Transport announced a new deadline for Government to make a decision on the Lower Thames Crossing Development Consent Order (DCO) application, the ... More Information

A38 Saltash Tunnel technology upgrade

Press Release - Work to start in late November 2024 - We’re working with local stakeholders including the MP, councils, Derriford Hospital, Network Rail and GWR, as well as our construction ... More Information

Arrival of the First TBM for Lot 1A of the Battipaglia-Romagnano Section on the Salerno-Reggio Calabria High-Speed Line

Arrival of the First TBM for Lot 1A of the Battipaglia-Romagnano Section on the Salerno-Reggio Calabria High-Speed Line

The first of four tunnel boring machines (TBMs) designated for the excavation of tunnels in the Battipaglia-Romagnano section (Lot 1A) of the Salerno-Reggio Calabria high-speed rail line has arrived ... More Information

South Australia - Double down the TBMs purchase for River Torrens to Darlington (T2D) Project

South Australia - Double down the TBMs purchase for River Torrens to Darlington (T2D) Project

On 29/09/2024 the South Australian Government and the T2D Alliance have formally sealed a contract to purchase three initial TBMs from world-leading manufacturer Herrenknecht. Infrastructure and ... More Information

TERRATEC achieves another successful TBM breakthrough

TERRATEC achieves another successful TBM breakthrough

TERRATEC TBM S81B celebrated its first tunnel breakthrough at Otteri Station for the 116.1 km Chennai Metro Rail Phase-II Corridor 3 project in India. TERRATEC, a leading provider of tunnel boring ... More Information

Suburban Rail Loop (SRL) East - TBMs on the way

The first 4 TBMs, manufactured by Herrenknecht,  for SRL East will begin arriving on site next year. The TBMs will be in the ground in 2026 and they will drill 16kms of twin tunnels between ... More Information

Switzerland - Federal Council Approves Final 3.5 km Section of the N28 in Prättigau

On September 13, 2024, the Swiss Federal Council approved the construction of the final 3.5 km stretch of the N28 between the Fideris/Jenaz and Küblis/Dalvazza junctions. The current road is ... More Information

France - Toulouse Metro Updates

Line B - At the end of August 2024, the consortium  Bessac, Soletanche Bachy, GTM Sud-Ouest TP GC with the TBM Clemence Isaure -  30m long and 5,28m in diameter - completed the second ... More Information

BBT - First breakthrough in the main Brenner Base tunnel in Austrian area

The ceremony has been held for the last breakthrough of the first main tunnel in the Austrian territory of the Brenner Base Tunnel. The breakthrough is at the Sill Gorge site, between lots H21 Sill ... More Information

Announced the shortlist for the ITA Tunnelling Awards 2024!

The ITA-Aites judges selected the ITA Tunnelling Awards 2024 finalists from an outstanding pool of entries - over 100 applications from 19 countries! The finalists in the 7 categories have been ... More Information

CRCHI TBM Ready for Romania

CRCHI TBM Ready for Romania

On September 12, a 6.35m diameter TBM passed its FAT at CRCHI’s second industrial park in Changsha. It will now be shipped to Cluj-Napoca, Romania, where it will be used in the construction of ... More Information

BBT - Launch of the Wilma and Olga TBMs

The launch of the Wilma and Olga TBMs will take place on Wednesday 18th  September 2024 at the BBT H53 Pfons-Brenner construction site.  The first components of the two TBMs - after ... More Information

Norway - Stad ship tunnel out for tender in October

Before the Norwegian Coastal Administration can issue the tender for the construction of Stad ship tunnel, all regulatory plans related to the ship tunnel must be approved. The Stad City Council ... More Information

New Zealand - TBM Hiwa-i-te-Rangi passes three quarter mark for Central Interceptor tunnel

New Zealand - TBM Hiwa-i-te-Rangi passes three quarter mark for Central Interceptor tunnel

On 11th  September  the TBM Hiwa-i-te-Rangi broke through into the 30-m deep shaft at the Western Springs site. The TBM Had tunnelled a little over 13km and installing over 8100 segment ... More Information

India - Breakthrough on Namma Underground metro, Pink line, in Bangalore

India - Breakthrough on Namma Underground metro, Pink line, in Bangalore

The Namma Metro’s TBM Tunga S-839 B - after tunnelling 936.6 m between Kadugondanahalli  Station to Nagawara Station’s South Cut & Cover Shaft – broke through on 04th ... More Information

Excavation of the northern tube of the Bjonnas twin-tube tunnel in Norway completed

Eiffage Genie Civil on Wednesday, August 28th at 4:30 PM - after 18 months of intensive excavation -  achieved the first breakthrough in the Bjonnas tunnel (2540 m) on the E18 Langangen - ... More Information

United States - GDC board authorizes EUR3.43 bn (USD3.8 bn) grant agreement to fund the Hudson Tunnel Project

On August 28, 2024 the Gateway Development Commission (GDC) Board authorized GDC to enter into a final agreement in September with the Federal Railroad Administration (FRA) for a EUR3.43 bn (USD3.8 ... More Information

TERRATEC TBMs are delivering for Mumbai Sewage Disposal Project

TERRATEC TBMs are delivering for Mumbai Sewage Disposal Project

TERRATEC 3.85m diameter Rock Slurry TBM has its first breakthrough in Malad West for Mumbai city’s 5.8 km Sewage Disposal Project-Stage II, PST-1 in India. TERRATEC celebrates the first ... More Information

HS2’s tunnelling into Birmingham reaches halfway point

The construction of HS2’s gateway to Birmingham takes a leap forward as the huge 125-m-long TBM digging the first bore of the Bromford tunnel reaches the halfway point.  The 1,600 t ... More Information

Italy/Sicily – Approved access ramp to the evacuation tunnel section, on the Ogliastrillo-Castelbuono

On 3 September 2024 - following the positive conclusion of the Service Conference convened in March 2023 - the definitive project (PD) of the proposed variant for the Cefalù stop - Access ... More Information

Chile - Breakthrough under Parque Araucano for metro Line 7 in Santiago

On the morning of Tuesday, August 13, 2024, representatives of the Ministry of Transport and Telecommunications and the Santiago Metro attended the breakthrough of the future metro Line 7 of ... More Information

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park The construction work to deliver the 24-km new Sydney Metro West railway power ahead. The mega project has recently achieved a slew ... More Information

Spotlight on Scandinavian Infrastructure: A Massive Opportunity on the Horizon

Press release - The Norwegian Public Roads Administration has announced a landmark project—the construction of the E134 Oslofjord connection, Stage 2. With a contract value estimated at NOK ... More Information

Tunnelling News

In pics: construction site of Chongming-Taicang tunnel

A smart assembling vehicle works at "Linghang" large diameter shield tunneling machine at the construction site of the Chongming-Taicang tunnel, part of the Shanghai-Chongqing-Chengdu ... More Information

IN PICTURES: Spectacular images of the removal of HS2's huge tunnelling machine

TBM Sushila was used to construct part of the Northolt Tunnel – an 8.4-mile tunnel ... construction/london-tunnels/progress-3/northolt-tunnel/tbm- ... More Information

Historic tunnels uncovered beneath Salisbury station during £5.3M upgrade project

Engineers from Network Rail and South Western Railway have uncovered a network of tunnels and rooms beneath Salisbury station during ongoing £5.3M upgrades to the station’s forecourt... More Information

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels. The new road will pass through Georgia along a trade route ... More Information

Buca Metro Tunnel Excavations Reached 50 Percent Level

Important progress is being made in the construction of the line, where four tunnel boring machines (TBMs), each 100 meters long, 7 meters wide and ... More Information

'Very promising' narrow-reef boring technology nearing rollout stage

A novel tunnel boring machine (TBM) will open up Bokoni's narrow tabular dipping PGM orebody to allow narrow-reef boring to take place, so that ... More Information

A vast undersea tunnel is being built

The 7.4 billion-euro ($7.7 billion) project is a huge undertaking, in every sense. Each section of the tunnel is colossal. These concrete structures ... More Information

National Grid gets planning permission for Grain to Tilbury upgrade with new Thames tunnel

National Grid has secured full planning approval for the Grain to Tilbury project, which includes a new power tunnel under the River Thames... More Information

Right track tunnel of Huangjialing Tunnel in NW China's Gansu drilled through

A staff member works on the construction site of the right track tunnel of the Huangjialing Tunnel in Linxia Hui Autonomous Prefecture, northwest ... More Information

Shetland Islands tunnels plan takes 'huge step forward' with sonar investigations

This phase will further inform the project's development and feasibility. The tunnel project, seen by locals as pivotal for improving ... More Information

Construction of the Tarande tunnel begins next week

On March 17th, in Vilnius district Construction of a tunnel and other related infrastructure will begin at Taranda and Bukiškis. This project aims ... More Information

Delhi Metro's Golden Line achieves major tunnel breakthrough;

The construction of Delhi Metro's Golden Line achieved a major milestone on Thursday as the Tunnel Boring Machine (TBM) broke through at the ... More Information

RiverRenew Tunnel Project Nearing Completion

The RiverRenew Tunnel System Project, the largest infrastructure investment in Alexandria's history, is nearing completion. More Information

Sydney Metro West tunnels enter final stretch after big breakthrough

Two tunnel boring machines (TBMs) constructing the huge Sydney Metro West tunnels have made a smashing entrance 24 metres below the surface. More Information

Chennai Metro Rail launches first tunnel boring machine for underground tunnelling in Kolathur

Corridor 5 begins at Madhavaram Milk Colony and connects through Koyambedu, Porur, Alandur and other residential/commercial areas of the city to ... More Information

Element Six, Master Drilling Announce Tunnel Development Partnership

Element Six and Master Drilling will deliver a diamond-enabled solution designed to increase tunneling development speed, reducing costs and minimize the environmental impact of tunnel ... More Information

Gateway Project Tunnel Connecting NY and NJ Moves Forward

Five Gateway contracts have been awarded so far, including one on Predergast's first day for construction on the Manhattan side of the tunnel... More Information

HSR Xi'an – Yan'an: Completion of All Tunnels in the Project

The HSR Xi'an – Yan'an has completed the excavation of all tunnels, including the Tongchuan Tunnel. This is a key milestone in the construction ... More Information

Brazil's US$1bn underwater tunnel project making waves among potential bidders

The first underwater road tunnel project in Brazil is attracting interest from multiple potential bidders, an official familiar with the matter ... More Information

Element Six and Master Drilling Announce Strategic Partnership for Advanced Tunnel

Achieving high quality, nonexplosive tunnel construction with various aspects of value generated compared to traditional rock excavation methods is a ... More Information

Tutor Perini Wins a $1.2 Billion NYC Contract

A joint venture of Sylmar-based civil construction firm Tutor Perini Corp. and its subsidiary Frontier-Kemper Constructors has won a $1.18 billion contract to construct a pair of rail ... More Information

Milestone reached for $1.6b Auckland wastewater tunne

Watercare's Central Interceptor project has passed an historic milestone with the southern half of the 16.2 kilometre tunnel – Blockhouse Bay ... More Information

Elon Musk's 'Wormhole' Tunnel Promises To Carry 20,000 People Per Hour In Dubai

It’s been more than eight years since Elon Musk decided he was fed up with traffic and declared he’d start digging tunnels to revolutionize public transport across the United States. So ... More Information

First tender for Dubai’s $22bn tunnels due within days

Dubai Municipality is expected to tender the first two packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project imminently... More Information

London's Thames Tideway Tunnel now fully connected

After 10 years of construction work, the last of the 21 connections of the Thames Tideway Tunnel was made to the city's Victorian sewage system. More Information

Silvertown Tunnel

Silvertown Tunnel is the Transport for London project looking to forge a brand-new connection between Silvertown and the Greenwich Peninsula... More Information

Dubai Loop: Elon Musk to Build Huge Underground Road Network

Musk's The Boring Company, which is responsible for building a similar project in Las Vegas, aims to create 17 kilometers of tunnel capable of ... More Information

Wisconsin approves $4.5m tunnel lighting project

Wisconsin Governor Tony Evers has approved a $4.5m lighting systems upgrade project in various tunnels in Milwaukee County, Wisconsin. More Information

$1.18bn Manhattan Tunnel contract awarded as part of $16bn Hudson Tunnel Project

The Hudson Tunnel Project is the key section of the Gateway Programme, which is a comprehensive rail infrastructure investment aimed at boosting ... More Information

North East Link continues to forge ahead towards completion

Tunnelling will soon commence on Victoria's longest twin road tunnels – the North East Link tunnels – as two massive tunnel boring machines (TBMs) are ... More Information

Africa's huge £8.5m tunnel cuts up to 26 minutes off journeys to major capital city

The tunnel is to be constructed within the next three years. This project will not only create 500 jobs in the construction ... More Information

CMRL's tunnel boring machine from Panagal Park reaches Kodambakkam station after a year

Chennai Metro Rail's Phase II Project faces delays as tunnel boring machines 'Pelican' and 'Peacock' progress towards Kodambakkam... More Information

$800-million twin-tube tunnel, longest in the Philippines, nears 'breakthrough'

A senior agency official stated on Thursday that the tunneling phase of the Davao City Bypass Construction Project will achieve a long-awaited ... More Information

The World’s Largest Immersed Tunnel Is Being Built—And It’s Done Without a Tunnel Boring Machine

When we think about groundbreaking advancements, our minds often jump to cutting-edge technology like smartphones or supercomputers. But some of the most awe-inspiring innovations are ... More Information

Brenner Base TBM enters 'highly fractured' fault zone

A tunnel boring machine (TBM) working on the northernmost active construction lot of the Brenner Base Tunnel project has entered a “highly ... More Information

India building a historic Undersea Tunnel for Mumbai-Ahmedabad Bullet Train Project

He stated, "All high-quality safety norms have been adopted in the construction of this India's first carefully designed undersea tunnel project." The ... More Information

Norway's Incredible Ship Tunnel Plan Is Back On Track

Despite pandemic-related and planning delays to the project, the Norwegian Coastal Administration is pressing ahead with plans to build the world's ... More Information

PM Modi inaugurates Z-Morh tunnel in J&K

The tunnel works with the under-construction Zojila tunnel to enhance travel efficiency and road connectivity. NEW DELHI: Prime Minister Narendra ... More Information

Metro's tunnel construction on track

Meanwhile, the 'Azad' TBM is already working on the 'up-line' tunnel for the same stretch. After arriving at Transport Nagar, both TBMs were 'dragged' ... More Information