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Name chosen for NZ City Rail Links TBM

The winning name for City Rail Link’s TBM is Dame Whina Cooper. City Rail Link’s TBM will share the name of Dame Whina Cooper, a woman who spent most of an illustrious life leading the ... More Information

Tunnelling re-starts on super sewer as Tideway sets out comprehensive safety plan

London’s biggest infrastructure project has re-started tunnelling work on the super sewer urgently needed to clean up the River Thames. Tideway, the company building the 25km super sewer ... More Information

Second RijnlandRoute tunnel update

TBM Gaia has started drilling the second 2.25km  RijnlandRoute tunnel in the Netherlands. After Gaia was blessed on 07/05/2020, tunnelling began, the route will pass under the Vliet, the ... More Information

Crosstown Tunnel Progress

The Eglinton Crosstown light rail transit project has seen plenty of progress! Recently, the project reached an important milestone. As part of a testing and commissioning phase, a light rail ... More Information

Montreal Mont-Royal Tunnel modernization on REM

Montreal Mont-Royal Tunnel modernization on REM

From the 11/05/20 the REM (Reseau Express Metropolitain) construction sites in Montreal will gradually resume their operations, after a stop time that started on the 24/03/20. This is following the ... More Information

Geofluid Postponed until 2021.

Geofluid Postponed until 2021.

The new GEOFLUID show will take place from the 19th  to 22nd  May 2021 at the Piacenza exhibition centre in Italy . The current pandemic has considerably influenced the decision to cancel, ... More Information

Railways 2021 - Extended deadline for short papers

The Fifth International Conference on Railway Technology has been postponed from 7-10 September 2020 to 30 August - 2 September 2021 at the same venue in Mallorca, Spain. Due to the rescheduling, ... More Information

Tideway Press Release - Meet the Engineer: Bianca Wheeler

At Tideway, our aim is to inspire the engineers of tomorrow by promoting the STEM subjects of science, technology, engineering and maths. We also want to showcase some of the many talented people ... More Information

Poland - Zakopianka Tunnel

On Monday, April 27, 2020 the excavation of the second tube of the 2.06km Zakopianka tunnel under the Lubon Maly Mountain in the Beskid Wyspowy was completed. The teams boring the tunnel from both ... More Information

Paradigm Group Achieves World First Cross-Industry Dry-Deluge Testing on Australian Motorway Tunnelling Project.

Paradigm Group Achieves World First Cross-Industry Dry-Deluge Testing on Australian Motorway Tunnelling Project.

Paradigm Flow Services Ltd (PFS) has successfully applied their game changing digital dry deluge testing system, Dry-Flo® on a non-oilfield project on a major transport tunnel construction ... More Information

Russia/Tatarstan - Kazan metro

Russia/Tatarstan  - Kazan metro

On the 23.04.2020 the TBM named Aysylu was launched to start the construction of the first 5.37 section of  the second metro line in Kazan from Fuchik – Sakharov, the contractor is ... More Information

CIPA is Hiring

CIPA is Hiring

CIPA is hiring and looking for workers for its Italian and foreign sites: •             Mechanics and drivers (with license ... More Information

HRBT Expansion Project Update

HRBT Expansion Project Update

In March 2020 Hampton Roads Connector Partners (HRCP), the joint venture consisting of Dragados USA, Flatiron Constructors, Vinci Construction and Dodin Campenon Bernard,  commissioned ... More Information

TBM Millie launched at Anzac Station in Melbourne

TBM Millie launched at Anzac Station in Melbourne

On the 27/04/20 Metro Tunnel reached another major milestone with TBM Millie launching from the site of the new Anzac Station in Melbourne. Millie is digging the first tunnel between Anzac Station ... More Information

SWEDFAN - Complete Turnkey Ventilation Systems

SWEDFAN - Complete Turnkey Ventilation Systems

SWEDFAN - Complete Turnkey Ventilation Systems for underground construction since 1995. SWEDFAN has designed and manufactured ventilation systems for more than 2.000 tunnelling projects worldwide ... More Information

Fehmarnbelt tunnel update

Fehmarnbelt tunnel update

On the 26/04/2020 the Danish minister of transport reported that construction of the immersed tunnel Fehmarnbelt will start on January 1, 2021 on the Danish side.  Construction work will be ... More Information

Forrestfield April / May project update

It’s a wrap! A major milestone was achieved earlier this week with tunnelling now complete after tunnel boring machine (TBM) Sandy broke through at the Bayswater dive structure on Monday. ... More Information

The WestConnex update

The WestConnex update

When complete, Sydney’s AUD16.8 billion WestConnex project will provide drivers with 33km of motorway to link western and south-western Sydney with the city, Kingsford Smith Airport and Port ... More Information

Colombia - postponement of the opening of the La Linea tunnel

The inauguration of the la Linea tunnel and its emergency tunnel, scheduled by Invias for 29 May 2020, will be delayed due to the slowdown in work imposed by the Coronavirus pandemic.  The La ... More Information

Government confirms Notice to proceed on High Speed 2

The Department for Transport  has given approval for HS2 Ltd to issue Notice to Proceed to the four Main Works Civils Contractors working on the project. On the 15/04/20, following on from the ... More Information

First section of Melbourne Metro tunnel completed

First section of Melbourne Metro tunnel completed

Press release - The first section of the Metro Tunnel is now complete – with Joan and Meg the tunnel boring machines (TBMs) breaking through to complete the journey from Arden Station to the ... More Information

DC Water’s Potomac River Tunnel project approved

DC Water’s Potomac River Tunnel project approved

The National Park Service (NPS) has completed an Environmental Assessment (EA) and approved DC Water’s proposal to move forward with construction of the Potomac River Tunnel project. A ... More Information

TBM Chris Breaks on Through North East Boundary Tunnel!

TBM Chris  Breaks on Through  North East Boundary Tunnel!

TBM Chris, launched in July 2018 has broken through on W Street as part of the Clean River Project in Washington DC.  The TBM was named Chris, in honour of Christopher Allen, the assistant ... More Information

Sydney Metro tunnelling to create thousands of jobs

On the 07/04/2020 Minister for Transport Andrew Constance announced the start of the tender process to build almost 50km of new metro railway tunnels between Greater Parramatta and the Sydney CBD on ... More Information

First blast at Sodermalm

First blast at Sodermalm

On the 03/04/2010 the first blast took place to start the first tunnel for the Blue metro Line's extension under Saltsjon and Sodermalm  in Stockholm: click here to view the video.  The ... More Information

Swiss Tunnel Congress 2020 to be held online

Due to the current worldwide conditions in regards to COVID-19, the Executive Committee of the STS has decided to cancel all events relating to the Swiss Tunnel Congress scheduled to take place in ... More Information

Purple Line Extension in Los Angeles

Purple Line Extension in Los Angeles

The Purple Line Extension Transit Project will be welcoming the last two TBMs which will join the Section 1 TBMs Elsie and Soyeon and the Section 2 TBMs Harriet and Ruth in Los Angeles. The ... More Information

Stockholm Metro update

Stockholm Metro update

Stockholm Metro to Alvsjo - Planning for the Metro between Fridhmsplan and Alvsjo, via Liljeholmen, has begun this year after an agreement was reached between the Municipality of Stockholm and ... More Information

The ITA tunnelling awards 2020 - Call for entries

The 6th edition of the ITA Tunnelling Awards will take place at the end of the year (exact place and date will be confirmed soon). For this edition, some changes are proposed in the categories with ... More Information

Normet Technologies for Sprayed Concrete Animation

Normet Technologies for Sprayed Concrete Animation

Normet Oy brings you an animation to show how to optimise the cost and quality of sprayed concrete, showing its delicate combination of different factors. See how Normet can help you improve your ... More Information

The GuardIAN Intelligence Network from MineArc

The GuardIAN Intelligence Network from MineArc

What is a GuardIAN? It is a protector. A defender. A guide. In response to industry requirements, the GuardIAN Intelligence Network has been designed to improve personnel safety, increase ... More Information

Liafjell- Olvikvatnet finished next year

Liafjell- Olvikvatnet finished next year

The Nordland County Council Bent-Joacim Bentzen assured the Liafjell - Olvikvatnet project will be completed  for autumn 2021. Construction of the new 5.5km-long stretch of the Liafjellet - ... More Information

Construction on Moscow Subways to continue

Construction on Moscow Subways to continue

Despite the set of measures to prevent the spread of coronavirus, the pace and scope of work on the construction of the Moscow's subway will not decrease. Today, active tunnelling in Moscow involves ... More Information

Press release - Forrestfield Airport Link project update

In late July 2017, TBM Grace set off from Forrestfield to Bayswater, building the tunnel that will house the Forrestfield-bound trains. On February 18 tunnel boring machine (TBM) Grace arrived at ... More Information

4 tunnelling shows postponed

NASTT’s No-Dig Show - Postponed Due to the COVID-19 response situation going on throughout the United States and Canada, the 2020 NASTT’s No-Dig Show, originally scheduled for April 5-9 ... More Information

Tunnelbuilder turns 21!

Tunnelbuilder turns 21!

Today Tunnelbuilder celebrated 21 years of providing the tunnelling community with up to date, daily information on tenders, awards and news from throughout the world. 21 years ago tunnelling ... More Information

Tunnelling News

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information

Athens Metro Line 4 works to finish by 2029

The construction of Athens Metro Line 4 is progressing steadily, with the entire project ... Tunnel mistakenly excavated in Athens metro project. More Information

First trains on track to run through Metro Tunnel within three months

Melbourne's $15.5 billion Metro Tunnel could be switched on in as little as three months as construction wraps up at two CBD stations and trains ... More Information

Petersburg crews to begin tunnel project in response to ongoing flooding, damage - WRIC

As ongoing water issues have caused significant damage to infrastructure around Petersburg, the Old Towne neighborhood ... More Information

Intelligent optimization framework for tunnel construction

Tunnel construction forms the foundation of railway development and is essential for ensuring route continuity and operational efficiency. However, ... More Information

São Paulo positions TBM for next phase of Line 2-Green

A major milestone was reached on Monday (1 September) with the lowering of the cutter head of the tunnel boring machine (TBM) Cora Coralina... More Information

The 700-ton machine that'll dig NYC's Second Avenue subway extension

NYC has a new tunnel boring machine in its toolbox for the expansion of the line under 2nd ave. If you've never seen some BIG earth moving machines, ... More Information

Light at the end of the tunnel showing for Mount Washington transit project

The project is expected to be completed in October. New tracks finally emerge from the Mount Washington Transit Tunnel as a part of Pittsburgh ... More Information

Davao City Bypass South Tunnel hits breakthrough towards improved connectivity

The Construction Project with the ceremonial breakthrough of the southbound tunnel, marking the complete excavation from opposite ends of the ... More Information

Which companies are bidding for the US$2.3bn highway and tunnel contracts in Brazil?

The project in Brazil, as it will be the country's first underwater tunnel,” the person added. The project involves construction of a 1.5km tunnel ... More Information

US Northeast Rail Corridor Gets a Major Makeover with Tunnel and Bridge Replacements

This project is designed to replace tunnels severely damaged by Superstorm Sandy, ensuring smoother and more reliable service for Amtrak, NJ Transit, ... More Information

DPWH, JICA celebrate breakthrough of Southbound Tunnel in Davao Bypass

The event marked the successful connection of the tunnel's north and south ends. The ... More Information

Jacobs joins Ramboll on Marselis road tunnel project in Denmark

Danish Road Directorate senior project manager Michael Schmidt Vosgerau said: “It is a complex task to build a tunnel on one of the busiest access ... More Information

Planning continues for Midway Tunnel, Safe Streets for All projects

The Midway Tunnel project is a $13.4 million plan ... construction of a new overpass bridge and pedestrian and bicycle walkway above the tunnel. More Information

Four million tons of clay moved in HS2 excavation

Construction on HS2's second-longest tunnel started in October 2022. The rotating cutters cut away clay and other material at a rate of about 50ft ... More Information

Jacobs Has Design-CM Role on $640M Denmark Tunnel, With Ramboll as Key Consultant

Set to begin construction in 2028, Marselis Tunnel project is core component of the country's 10-year Infrastructure Plan 2035. By Emell D. Adolphus. More Information

Elon Musk's $760,000,000 plan to build underground tunnels beneath Houston, Texas

Elon Musk's next big construction plan from The Boring Company could build $760000 worth of tunnels beneath Houston to help with flooding... More Information

Kerala Moves Closer To Vizhinjam–Balaramapuram Tunnel Rail Project

The Kerala government is preparing to invite bids next month for the tunnel rail project linking Vizhinjam International Seaport with ... More Information

Norway's Ship Tunnel Project Under Threat as Costs Rise

New cost estimates suggest the ambitious project will far exceed its approved budget, raising questions about whether it will ever be built. More Information

Davao City Bypass southbound tunnel nears breakthrough

The Department of Public Works and Highways (DPWH) announced that the southbound tunnel of the Davao City Bypass Construction Project (DCBCP) is ... More Information

CA should pursue better alternatives to the costly Delta Tunnel Project Stocktonia

Governor Gavin Newsom is attempting to fast-track the construction of a massive, budget-busting water tunnel through the Delta to ship freshwater to ... More Information

Physical Origins of Shear Strength Fluctuations in Fault Gouges

Fault gouge is rock texture within fault zones that may include rock fragments (RF) and foliated structures. Previous studies have primarily focused on remould soils, the natural structure ... More Information

Webuild expands its role in high-speed rail projects

Four modern tunnel boring machines will be deployed to ensure precision and safety in complex geological conditions. Once completed, the old single- ... More Information

Hudson Tunnel Project advances as tunnel boring machines near completion

The Hudson Tunnel Project hit a key milestone as massive tunnel boring machines near completion, with delivery set for November. More Information

Nagdhunga tunnel in final stages of construction

If we look at the history of road construction and development in Nepal, there are various records of road construction starting from the Rana period. According to articles published in ... More Information

Boring of tunnel across Yellow River completed in China's Shandong

Constructed by using a "Shanhe" shield machine with a 17.5-meter excavation diameter, this double-deck, two-way, six-lane tunnel stands as the world's ... More Information

The £1.6bn plan for world's deepest underwater road tunnel leaving 'no room for error'

Opening of Rogfast tunnel under construction. The Rogfast tunnel will be the longest and deepest undersea road tunnel on Earth. (Image: SKANSA). A ... More Information

Tunnelling complete on NSW's Coffs Harbour bypass project

Tunnelling has been completed on the A$2.2bn (£1.1bn) Coffs Harbour bypass project in New South Wales, Australia, with the excavation of the third ... More Information

Veidekke acquires tunnel construction contract for Gothenburg's West Link Project

Veidekke has received a contract from the Swedish Transport Administration to build the Stora Hamnkanalen tunnel, a component of the West Link ... More Information

German Rail completes construction of Rastatt Tunnel

GERMAN Rail (DB) has completed civil works on the new 4270m twin-bore Rastatt Tunnel, a major component of the project to widen to four tracks the ... More Information

Final contracts signed for Eastern Freeway transformation

A huge amount of work is underway to build North East Link and upgrade the freeways – two tunnel boring machines are digging deep under Rosanna ... More Information

Progress on Sydney pipeline duplication

Bouygues Construction Australia and Rob Carr have launched a tunnel boring machine (TBM) on Sydney Water's Thornleigh pipeline duplication ... More Information

The latest plan to connect BART to downtown San Jose: One tunnel rather than two

When BART and Santa Clara Valley Transportation Authority first discussed plans to send trains rolling under downtown San Jose, transit officials contemplated a design with two tunnels ... More Information

Nashville Tesla tunnel: Here's when construction could start on the Music City Loop

Elon Musk's The Boring Company is currently in the design phase of constructing a tunnel connecting downtown Nashville to the Nashville ... More Information

World's longest underwater 'mega tunnel' to cost $46 billion but will halve 21-hour drive

Oddvar Kaarmo, the Rogfast project manager, cited additional motivation for the tunnel's construction: "The port at Mortavika is quite exposed and ... More Information