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Construction Begins on Cross Island Line Phase 2

The Land Transport Authority (LTA) has commenced civil construction works for Phase 2 of the Cross Island Line (CRL). Acting Minister for Transport Jeffrey Siow officiated the ground-breaking ... More Information

First Scheldetunnel Element Successfully Immersed in Antwerp

DEME Group has announced a major milestone in the construction of the Scheldetunnel, part of the Oosterweel Link in Antwerp. The first of eight prefabricated tunnel elements has now been ... More Information

Underground Breakthrough for €114M Athlone Drainage Project

The €114 million Athlone Main Drainage Scheme has recorded a successful breakthrough on its second underwater tunnel beneath the River Shannon—marking a significant milestone in the ... More Information

Torrens to Darlington Project Update

ADELAIDE, SA — July 2025: The Torrens to Darlington (T2D) Project continues to gain momentum, with June marking a month of significant progress across several key construction sites. As South ... More Information

Bhopal Metro Rail Project

The Bhopal Metro Rail Project has marked a significant milestone with the successful completion of the Factory Acceptance Test (FAT) for its first tunnel boring machine (TBM), designated TBM 427. ... More Information

Europe’s Largest Road Tunnel: The Lower Thames Crossing

Preparatory work for the Lower Thames Crossing—the future title-holder of Europe’s largest road tunnel—is slated to begin in late 2025 Project Overview Tunnel length: 2.6 ... More Information

Rome metro line C - Executive design of section T2 gets underway

With Ordinance N. 10 from the 27 June 2025, the Special Commissioner approved the final design for the 4km section T2 of Line C, involving the construction of four new stations (Chiesa Nuova, San ... More Information

Last Chance Grade Project - California

Caltrans District 1 announced a USD 40 million allocation toward the design phase of the Last Chance Grade Project along U.S. Highway 101 south of Crescent City in Del Norte County. This funding ... More Information

HS2 completes excavation of the Norton tunnel under London

HS2 completes excavation of the Norton tunnel under London

Excavation of the  twin-bore Northolt tunnel between West Ruislip at the outer edge of the capital and the new Old Oak Common super-hub station in west London has been completed. On 26th June ... More Information

ITEC 2025 - Highlighting Advanced Trenchless Technologies for Saudi Arabia’s Infrastructure Transformation

The International Trenchless Exhibition & Conference (ITEC) 2025 officially commenced on 23 june at the Jeddah Hilton. More Information

TBMs resume digging North East Link tunnels in Australia

Gillian and Zelda, the two massive TBMs building Victoria’s longest road tunnels are back in action, relaunching from Lower Plenty Road to continue their journey towards Bulleen as part of the ... More Information

Swiss Tunnel Day 2025

Starting in 2024, the Swiss Tunnel Congress (STC)—Switzerland’s premier event for underground construction—will be held exclusively in even-numbered years. To maintain momentum in ... More Information

Turin/Lyon - Open days on the construction site to discover the TBM Viviana

Less than a year after the previous open day organised at the entrance to the base tunnel on the French side, TELT once again welcomed the public on the 14 and 15 June 2025, this time at the ... More Information

Government Injects £590 Million into Lower Thames Crossing

A Crucial Boost to Britain’s Largest Road Tunnel Project -  On 16 June 2025, Chancellor Rachel Reeves confirmed an additional £590 million funding boost for the Lower Thames ... More Information

WTC2026 Call for abstracts - Extended Deadline!

The WTC2026 planning committee would like to inform you that the deadline for the abstract submissions has been extended for a final time to June 30, 2025. The Congress will take place from 15 to 21 ... More Information

Final breakthrough for Casacastalda tunnel on SS 318 Di Valfabbrica

On 12 June 2025, the last part of the new Casacastalda tunnel was demolished as part of the works to widen the Valfabbrica SS 318 (Perugia-Ancona route) to four lanes: click here to watch ... More Information

International Trenchless Exhibition & Conference (ITEC 2025)

International Trenchless Exhibition & Conference (ITEC 2025)

ITEC 2025, which will take place on 23- 24 June 2025 at the Jeddah Hilton, Jeddah (Saudi Arabia) is a premier event aimed at advancing trenchless technology within Saudi Arabia’s rapidly developing infrastructure sector. More Information

Shortened construction time for the Floyfjell tunnel extension in Norway

Shortened construction time for the Floyfjell tunnel extension in Norway

The Norwegian Public Roads Administration has prepared an optimized proposal for adjusted exit and entry ramps from the Floyfjell road tunnel in Sandviken on the E39.  The extension of the ... More Information

Press release - Third HS2 tunnelling machine completes its drive beneath London

Press release - Third HS2 tunnelling machine completes its drive beneath London

HS2’s tunnelling team in London is one step closer to completing the capital’s Northolt Tunnel after the latest in a series of complex tunnelling breakthroughs. The tunnel boring ... More Information

Norway - Three bids received for the Stad ship tunnel

The procurement process for the construction of the Stad Ship tunnel has moved a step forward with the receipt of the first bids from all three prequalified bidders: the joint venture of Skanska ... More Information

Finance approved for the Arna-Stanghelle Joint Project in Norway

Securing approval on June 03, 2025 for the financing of the Arna–Stanghelle Joint Project in the Storting is an important step toward getting started. This is a project of great importance for ... More Information

Hyderabad Metro Phase 2B’s three corridors approved in India

Hyderabad Airport Metro Limited (HAML) has informed that the Detailed Project Reports (DPRs) of the proposed Hyderabad Metro Phase 2B for JBS-Medchal, JBS-Shameerpet, and Airport - Future City Metro ... More Information

Brazil - the tender for the Santos-Guaruja immersed tunnel republished

On June 9, the Government of São Paulo republished the tender for the Santos-Guaruja immersed tunnel. The improvements to the tender are the direct result of the contributions collected ... More Information

The giant HS2 TBM Mary Ann to be given a new lease of life

After completing the 3.5-mile (5.8km) mission to excavate the first section of the Bromford tunnel, linking North Warwickshire and Birmingham, HS2’s giant TBM Mary Ann is being stripped down ... More Information

Breakthrough at Tughlakabad Railway colony station on the Golden Line of Delhi Metro Phase-IV

The Delhi Metro Rail Corporation (DMRC) on 7th May 2025 achieved a significant construction milestone, with the TBM breakthrough at  Tughlakabad Railway colony station. The 96-m-long TBM EPB ... More Information

Delhi Metro proposes 18 new corridors across Delhi-NCR under Phase-V

The Delhi Metro Rail Corporation (DMRC) has proposed the construction of 18 new Metro corridors covering a total length of 206.5 km under Phase-V. The proposal has been submitted to the Union ... More Information

Grand Paris Express – Line 15 Updates

First TBM for Line 15 West delivered - On May 28, 2025, Herrenknecht finished the first TBM EPB for the Intencites15 consortium, led by VINCI Construction Grands Projets, and the Societe des ... More Information

PIB clears the 12-km East-West Corridor (Charbagh to Vasant Kunj) under Phase 1B

The Public Investment Board (PIB) has given the nod of approval to the Lucknow Metro's East-West Corridor, which will link Charbagh to Vasantkunj as part of Phase 1B of the project. The only step ... More Information

HS2 lifts TBM Caroline from below ground at the Green Park Way site in Greenford

HS2 lifts TBM Caroline  from below ground at the Green Park Way site in Greenford

On Sunday 25th May, engineers working on the HS2 project lifted the TBM's 9.48 metre diameter cutterhead, front and middle shield, weighing 850 tonnes, using a large gantry crane. The tunnelling ... More Information

Fraser River Tunnel Project Overview

The public is invited to provide feedback to the Environmental Assessment Office on the Fraser River Tunnel Project’s Environmental Assessment application. The public comment period runs from ... More Information

The Norwegian Road Administration's priorities for major road developments

The Public Road Administration of Norway's portfolio of major development projects - estimated cost approximately EUR8.71 billion (NOK 100 billion) are as follows 29 projects: click here for the ... More Information

Australia - Suburban Rail Loop major works underway

Major construction has kicked off on Suburban Rail Loop (SRL), with works full steam ahead to build a massive TBM launch site in Clarinda, where tunnelling will start next year.  The giant ... More Information

A new breakthrough in one of the two main tunnels on the Austrian side of the project

A new milestone in the BBT project, on May 20th , a break through was made in the western main tunnel between the two lots H41 Sill Gorge-Pfons and H21 Sill Gorge.  In the western main tunnel ... More Information

Norway - Countdown to the tender for the world's first ship tunnel

The 3 joint ventures Skanska Norge AS and Vassbakk & Stol AS (Norway), AF Group Norway AS (Norway) and Eiffage Genie Civil (France) have until 09:00am on 10 June to submit the first offer for ... More Information

WTC 2026 - Two weeks left to submit your abstract!

The deadline May 30, 2025 for abstract submissions is approaching fast! Don’t miss your chance to be part of the WTC2026 program and join the conversation on the conference theme: ... More Information

Pfons-Brenner construction lot: Breakthrough in the east main tunnel

A new milestone has been reached for the H53 Pfons-Brenner construction lot in the Austrian part of the BBT project, in the geologically challenging area of Hochstegen. On the 08/05/2025 a ... More Information

Tunnelling News

Bengaluru: Four infrastructure firms bid for Hebbal short tunnel

Bengaluru infrastructure: Four firms, including Dilip Buildcon and Max Infra, bid for BDA's Rs 1086 crore Hebbal short tunnel project... More Information

TBM readied for Montreal's Blue Line extension

A custom-made 9.7m-diameter tunnel boring machine (TBM) has been assembled and lowered ready to excavate the tube from the future Vertières stop to ... More Information

$11.5B Brenner Base Tunnel Nears End of TBM Excavation

With TBMs Olga and Wilma closing in, the 55-km rail project shifts from excavation to systems integration ahead of its planned 2028 opening beneath ... More Information

$6.75 Billion Unlocked for Turkey's Bosphorus Rail Project

Multiple Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) will need to be mobilized to carve out the subterranean corridors leading up to ... More Information

Tunneling for Nashville's underground Tesla project has begun

The Boring Company said that the first three weeks of the project will consist of the Prufrock-MB1, a machine that will help carve out the tunnel, ... More Information

Hudson Tunnel Project construction resumes

I look forward to celebrating the launch of our tunnel boring machines through the Palisades once GDC has assurance it will receive the steady flow ... More Information

Lower Thames Crossing

British suppliers could meet 90% of low carbon steel requirements. The proposed machine would be 16.4m in diameter, large enough to create a three‑lane tunnel bore, and is intended to dig ... More Information

Inside the Tunnel Boring Machine, Southampton Link Main project

A six-tonne tunnel boring machine is digging deep below the ground in Hampshire to help keep the county's taps and rivers flowing... More Information

TBM maestro inspects sites ahead of massive tunnel drive

The first machine components have arrived for the tunnel boring machines (TBMs) to be deployed on the Suburban Connect sites in Melbourne. More Information

Metrolinx provides major updates on subway and LRT projects across the GTA

Tunnel boring is advancing on multiple projects, with Scarborough's TBM ... Metrolinx says “Diggy Scardust,” the project's tunnel boring machine, is now ... More Information

Work in Progress: High-tech TBMs ready to carve underground corridor

The Bhopal Metro Rail Project is transitioning into its most challenging and sophisticated phase as two state-of-the-art Tunnel Boring Machines (TBMs) ... More Information

Sarens helps extract TBM at BC water supply project

The Annacis Water Supply Tunnel Project aims to increase the reliability and capacity of the water supply system in New Westminster, British Columbia. When complete, the tunnel will ... More Information

Judge rules in favor of New York and New Jersey for now in $16B tunnel fight with Trump

A federal judge ruled Friday to temporarily block the Trump administration from suspending federal disbursements for the Gateway Tunnel Project... More Information

Webuild: award for Sustainability Report for commitment to decarbonise through innovation

This includes the large tunnel-boring machines deployed on some of Europe's most complex projects: from the Salerno-Reggio Calabria ... More Information

Clearwater update reports initial entry area is 'stable and intact'

The tunnel boring machine being used in the project remains trapped underground just ahead of where the breach occurred. The ambitious, $630 ... More Information

Tunnel Boring Machine Market Size estimated at USD 7.08 Billion

The Tunnel Boring Machine (TBM) market is experiencing significant growth, driven by increasing urbanization, infrastructure development, ... More Information

Completing the First Section of Line 3: Tunnel Boring Machine Roars as it Emerges at Balboa

The Panama tunnel boring machine emerged and completed its first major task: the first section of the Line 3 Metro tunnel. More Information

Twin tunnel-boring titans prepare to dig new road under Sydney Harbour

Twin tunnel-boring titans are preparing to launch under Sydney Harbour to dig out a new road crossing from Birchgrove to Waverton... More Information

Monica Breaks Ground on Snowy 2.0

Monica the tunnel boring machine, with the renewable energy mega-project now more. TBM Monica is among the world's most advanced tunnel boring machines... More Information

Snowy 2.0 sets new tunnel boring machine to work, completes 46 underground concrete pours

Snowy 2.0 has set to work a fourth tunnel boring machine, a $75 million piece of drilling equipment purpose built to complete excavation of the huge pumped hydro project’s “geologically ... More Information

World's 'largest' underground assembly of tunnelling machines happening beneath Sydney

Workers are craning into place about 167 major pieces that will form the first of two giant boring machines. Once assembled like giant Meccano sets, ... More Information

Tunneling Begins on Major Water Pipeline for South Hillsborough

TAMPA, Fla. — Tampa Bay Water has begun construction on a major underground pipeline project aimed at meeting rising water demand in southern Hillsborough County, where population growth ... More Information

The massive £3billion tunnel designed to connect two continents under the sea

The construction of a huge underwater multi-tiered tunnel is underway in Turkey, that will create a direct route from Asia to Europe - and is expected to carry 1.3 million passengers a ... More Information

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information

Ground preparation for Lower Thames Crossing tunnelling

Work is ongoing to overcome sub-optimal ground conditions in preparation for the start of tunnelling on the Lower Thames Crossing in late 2028, according to the project’s tunnels director... More Information

LA Metro approves massive $25B underground rail line to bypass 405 Freeway

The LA Metro Board unanimously approved an underground heavy rail line to connect the San Fernando Valley and the Westside, bypassing the congested 405 Freeway. The nearly 13-mile route, ... More Information

TUNNEL VISION Mega £7.4bn undersea tunnel connecting two CONTINENTS just got one step closer

A MAJOR £7.4 billion underwater tunnel connecting two continents has taken a step closer to construction. Experts have said the 24-mile tunnel is “technically viable”, paving the way for ... More Information

TBM breakthrough in Sydney

Tunnel boring machine (TBM) Jane Starkey successfully completed her 1.2km underground journey through challenging Sydney sandstone... More Information

Hochul announces $25 million for Harlem crosstown subway tunnel design

At E. 120th St., a pair of tunnel-boring machines — currently under construction in Germany — will bore new, 8,400-foot tunnels north from the end ... More Information

Tunnelling under the Yarra River

Our two Tunnel Boring Machines (TBMs) will soon be travelling underneath the Yarra River... Approximately 300 metres of the 6.5 kilometre North East Link will be under the Yarra ... More Information

The Boring Company says its tunneling machine is 'ready to mine in Nashville'

The Music City Loop project is aimed at transporting people from Nashville International Airport to Lower Broadway in roughly 10 minutes. By Li ... More Information