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DC Water's Potomac River Tunnel Project to begin controlled underground blasting

  DC Water's Potomac River Tunnel Project is to begin controlled underground blasting as part of the excavation work for DC Water’s Potomac River Tunnel Project. Weekly ... More Information

Philippines Achieves Major Breakthrough in Davao City Bypass Project

Philippines Achieves Major Breakthrough in Davao City Bypass Project

On Monday, April 28, 2025, a breakthrough ceremony was held at the North Portal in Barangay Waan, Davao City, marking a significant milestone in the Davao City Bypass Construction Project (DCBCP). ... More Information

Tunnelbuilder is a media partner for the WTC 2025!

Tunnelbuilder is a media partner for the WTC 2025!

We're excited to announce that Tunnelbuilder Ltd is a Media Partner for WTC2025! Tunnelbuilder.com along with sister site tunnelbuilder.it has been delivering daily tunnelling news, bids, awards, ... More Information

New milestone in the excavation of the first tunnel of the Norrbothnia/North Bothnia Line

The construction of the 1.6km Ersmark tunnel, the first tunnel of the Norrbothnia/North Bothnia Line, is progressing according to plan and the construction between Fäboberget and ... More Information

Breakthrough on India’s Longest Rail Tunnel on the Rishikesh-Karnaprayag Rail Line

Breakthrough on India’s Longest Rail Tunnel on the Rishikesh-Karnaprayag Rail Line

On 21 April 2025 Larsen & Toubro broke through in India’s longest railway tunnel. It is the 14.57 km tunnel n. 8  between Devprayag and Janasu in Uttarakhand part of the 125-km ... More Information

11th edition of the ITA Tunnelling Awards - Call for entries deadline Extension

Considering the numerous requests for an extended deadline, the ITA Awards 2025 Organizing Committee is pleased to announce that the deadline of abstract submission has been extended to 30 May, ... More Information

Belloli: A Legacy of Expertise Driving the Future of Tunnelling – News 2025

Belloli: A Legacy of Expertise Driving the Future of Tunnelling – News 2025

Via Feree—literally “Street of the Blacksmiths”—leads directly to the Belloli SA facility in Grono, Switzerland, a fitting location for a company that has forged a ... More Information

Major construction expands across entire route of Eglinton Crosstown 9.2-km extension

On 15/04/2025 crews have started digging the tunnels that will connect the Eglinton Crosstown West Extension to the existing terminus of the Eglinton Crosstown LRT (to be known as Line 5 Eglinton ... More Information

Romania - First TBM launched on the Southern section of Bucharest Metro Line 6

On April 9, 2025 the launching ceremony was held for the first of the two TBMs that will excavate the Southern section, 6.6 km long, between Tokyo and 1 Mai stations, of metro line 6 in Bucharest. ... More Information

Cancelled competition for consultancy and design services for the Arna-Stanghelle Joint Project

Norwegian Public Roads Administration and Bane NOR - in order to correct ambiguities in the competition basis, and ensure effective competition for the procurement of a framework agreement for ... More Information

France - Breakthrough of the TBM Marguerite de Catellan for the Toulouse metro

On March 24, 2025, the Horizon consortium, composed of Bouygues travaux publics (leader), Soletanche Bachy and Bessac celebrated the break through of the TBM Marguerite de Catellan in the Limayrac ... More Information

North East Link Road headers hit major milestone in Bulleen

Excavation for the North East Link has reached another significant milestone with road headers breaking through in Bulleen in March, marking a key step in the construction of the 6.5 km ... More Information

Milestone Achieved: Excavation Completed on Telese and Reventa Tunnels for Naples-Bari High-Speed Rail Line

On April 9, 2025, a significant milestone was reached on the Naples-Bari high-speed/high-capacity (HS/HC) railway line with the completion of excavation works for two major tunnels. The final ... More Information

Final breakthrough on the 16.2-km Central Interceptor tunnel in Auckland

Final breakthrough on the 16.2-km Central Interceptor tunnel in Auckland

On 28 March 2025 the TBM Hiwa-i-te-Rangi broke through into a 30-metre- deep shaft at Point Erin Reserve, Herne Bay completing the 16.2-km Central Interceptor wastewater tunnel running under ... More Information

Silvertown tunnel opens in London

Today, April 7, 2025, Transport for London (TfL) has officially opened the Silvertown Tunnel, a significant infrastructure project designed to enhance connectivity between Silvertown in east ... More Information

TBM Lilia Crosses Werner Fault Zone, Reaches 6 km Milestone on BBT Project

Tunnel boring machine (TBM) Lilia has reached a major milestone in the construction of the Brenner Base Tunnel (BBT), having successfully crossed the Werner fault zone and completed 6 kilometers of ... More Information

HS2 - Second TBM completes the western section of Northolt tunnel

On 3rd April 2025 HS2 has completed a 5-mile tunnel drive under London – using one of four TBMs being deployed to build the railway’s Northolt tunnel. The TBM named Caroline, is the ... More Information

Poland - Excavation of tunnels in the Podłeze - Piekiełko project started

Poland - Excavation of tunnels in the Podłeze - Piekiełko project started

The consortium consisting of Budimex SA (leader), Gulermak Agir Sanayi Insaat ve Taahhut AS and Gulermak Sp. z o.o. . have started excavation of the tunnels under Pisarzowa on the Limanowa - ... More Information

TBM Viviana Begins Excavation of the Turin-Lyon Base Tunnel

TBM Viviana Begins Excavation of the Turin-Lyon Base Tunnel

On April 1, 2024, at the Saint-Martin-la-Porte construction site (CO7), the red Savoy tunnel boring machine (TBM) Viviana was officially launched. This marks the beginning of excavation for ... More Information

Turin/Lyon – Final Approval for the Avigliana-Orbassano–Pronda Junction Project

On April 1, 2025, during a meeting of the Turin-Lyon Observatory in Turin, the final project for the national section of the Avigliana-Orbassano–Pronda junction was presented and approved. ... More Information

Completion of the Trisungo Tunnel Excavation in Italy

On March 27, 2025, in Arquata, the final breakthrough of the Trisungo Tunnel (1.8 km) was completed. This tunnel is part of the SS4 Salaria variant, connecting the Trisungo and Valgarizia tunnels ... More Information

North East Link TBMs break through at Yallambie

North East Link TBMs break through at Yallambie

The 2 TBMs helping build the 6.5km North East Link twin tunnels between Watsonia and Bulleen have broken through at the Lower Plenty Road interchange site – marking a major milestone on ... More Information

Lower Thames Crossing - Government gives planning permission

On 25 March 2025 the government has given planning permission for National Highways’ A122 Lower Thames Crossing project. The decision, the recommendation made by the Examining Authority to the ... More Information

First km for TBM Futura on the Naples-Bari HS/HC railway line

The TBM Futura, with a diameter of over 12 m,  completed the excavation of the first kilometre of the Rocchetta tunnel (6.5 km). This is part of the first functional lot Apice-Hirpinia of the ... More Information

Two breakthroughs for the Rishikesh-Karnaprayag railway line in India

Two breakthroughs for the Rishikesh-Karnaprayag railway line in India

The construction works are progressing at full speed - on behalf of RVNL, Rail Vikas Nigam (the railways of India) – for the new 125 km Rishikesh-Karnaprayag railway line, 125 km long (105 ... More Information

HS2 TBM Sushila removed following Northolt tunnel excavation

HS2 TBM Sushila removed following Northolt tunnel excavation

Following its 8 km (5-mile) drive underneath the capital, HS2 lifted TBM Sushila out of the ground at the Green Park Way site in Greenford, West London.    The cutterhead, ... More Information

ITA Tunnelling Awards 2025

ITA Tunnelling Awards 2025

The international competition "the ITA Tunnelling Awards" seeks and rewards the most ground-breaking innovation and outstanding projects in tunnelling and underground space ... More Information

Romania - First TBM of Bucharest metro line 6 under assembly

In the launch pit of the future Tokyo station of the M6 line of the Bucharest metro, assembly work is proceeding at a rapid pace on the TBM that from April will dig 24/7 one of the tunnels of the ... More Information

National Grid secures planning approval for Grain to Tilbury project

National Grid has received full planning approval for the Grain to Tilbury project from Thurrock Council in Essex and Gravesham Borough Council in Kent, a key milestone in strengthening the ... More Information

Mapei workshop - Injection systems for construction repair and soil consolidation

Mapei workshop - Injection systems for construction repair and soil consolidation

Press release - On 13 March at 10:00 a.m. the 1st edition of the workshop “Injection systems for construction repair and soil consolidation” will be held at Dorcol Platz, Belgrade. ... More Information

TERRATEC celebrates breakthrough on Delhi Metro Phase-IV Project

TERRATEC celebrates breakthrough on Delhi Metro Phase-IV Project

TERRATEC's EPBM achieved a breakthrough in the Delhi Mass Rapid Transit System Project - Phase-IV, Contract DC-08 for the Delhi Metro Rail Corporation Limited in ... More Information

First kilometre for Wilma, the Austrian TBM advancing north

First kilometre for Wilma, the Austrian TBM advancing north

While Flavia is only 300 m from its final destination and Ida has already passed the Werner fault zone, the TBM Wilma reached its first kilometre of excavation at 10:40 on Sunday 2 March after ... More Information

TBM breaks through at Cat Linh Station for Hanoi Metro Line 3

TBM breaks through at Cat Linh Station for Hanoi Metro Line 3

On March 7, 2025, the TBM ‘’Thanh Toc’’ - which was launched at the end of July 2024 from the S9 - Kim Ma station at a depth of 17.8 m - reached the S10 - Cat Linh station, ... More Information

Sydney Metro West tunnels enter the final stretch as TBMs advance towards Parramatta

Two TBMs constructing the 24-km twin metro railway tunnels for Sydney Metro West have broken through solid rock walls to arrive at the junction caverns 24-m below the surface at Clyde. This latest ... More Information

WTC2026 - Call for Abstracts will be open today March 3, 2025

WTC2026 - Call for Abstracts will be open today March 3, 2025

The call for abstracts for the World Tunnel Congress 2026, which will take place from May 15 to 21 in Montreal, Quebec, Canada, open today 3 March 2025    Don’t miss the ... More Information

Stad ship tunnel: Four contractors have been prequalified

Four of the six contractors applied for prequalification to construct the Stad ship tunnel have been qualified to submit bids. The contractors advancing are:     ... More Information

Tunnelling News

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

CERN releases report on the feasibility of a possible Future Circular Collider

The estimated cost of construction of the FCC electron–positron stage, including the tunnel and all the infrastructure, is 15 billion Swiss francs... More Information

TBM break through on Auckland's £915M wastewater megaproject completes 16.2km tunnel

Auckland's major wastewater infrastructure project, the Central Interceptor, has reached a significant milestone with the final breakthrough of ... More Information

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