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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

HS2 celebrates first Birmingham tunnel breakthrough

HS2’s giant TBM Mary Ann broke through on 9th, May 2025, marking the end of her mission to excavate the first bore of what will soon become the longest railway tunnel in the West ... More Information

Huge cavern carved out below Sydney CBD as Hunter Street Station takes shape

Huge cavern carved out below Sydney CBD as Hunter Street Station takes shape

Completed the excavation of the Hunter Street metro station cavern for the Sydney Metro West mega project. Excavation has been ongoing around the clock for 20 months to create the giant cavern, ... More Information

STUVA-Expo 2025

STUVA-Expo 2025

STUVA-Expo, one of the world's leading and largest events in the tunnelling sector. Over 150 companies have already booked their participation for STUVA Expo 2025.  STUVA Expo ... More Information

BBT - TBM Excavation Completed on the Italian Side

BBT - TBM Excavation Completed on the Italian Side

Flavia, the last Italian TBM for the BBT project, has reached the Brenner Pass, completing the excavation of the west main tunnel in lot H61 Mules. This marks the end of mechanized excavation on the ... More Information

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

Tunnelling News

Spain Confirms Feasibility of €8.5 Billion Morocco-Europe Tunnel

The study was conducted by German company Herrenknecht, the world leader in tunnel boring machines, at the request of the Spanish government's ... More Information

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

The first tunnel boring machine will be deployed near ... Industry experts say tunnel boring machines typically advance about 50 feet per day. More Information

6 TBMs on Duty on the 27-Kilometer Line in Körfezray

Two of the six Tunnel Boring Machines (TBMs) that will serve in the first 27-kilometer phase are actively excavating tunnels, while the ... More Information

Construction on HS2's Euston tunnel will start 'fairly soon', says rail minister

Construction on the HS2 tunnel from Old Oak Common station to Euston station will start “fairly soon”, the rail minister has said... More Information

Blue Line Extension TBM Arrives at Port of Montreal

Railway Track and Structures Construction site of the future Vertières station (Pie-IX) in June 2025. Caption and photo courtesy of STM. MONTREAL - The tunnel boring machine (TBM) ... More Information

Tunnel break through milestone for Mt Messenger Bypass project

A 110 tonne excavating machine, called Hinetūparimaunga, has broken through at the northern end of the project's 235 metre-long tunnel ... More Information

$3.9 billion tunnel and bridge link for VA

Costing around $3.9 billion, the Hampton Roads Bridge-Tunnel (HRBT) upgrade Expansion project for Virginia will improve traffic flow for a key ... More Information

Extended North Tunnel Flood Mitigation Project Receives $18.2 Million in State Funding

The funding advanced by the board includes a $17.2 million loan and $1 million grant for the construction of the mile-long tunnel, which will divert ... More Information

Gateway Project faces new uncertainty amid government shutdown

Federal funding for the $16B Hudson Tunnel Project, aka Gateway, has been paused during the government shutdown, sparking political backlash. More Information

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