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Government gives green light to A303 Stonehenge improvement

Transport Secretary Grant Shapps has given the formal green light by granting a Development Consent Order for work to start on the A303 Amesbury to Berwick Down (Stonehenge) ... More Information

Press release - Barge number 238 delivers final concrete segment rings to Tideway’s Kirtling Street

The 238th and final barge delivering concrete segment rings used to line the central section of the Thames Tideway Tunnel has arrived at Tideway’s Kirtling Street site. Each barge ... More Information

4-day HS2 Ltd virtual event for contract opportunities begins

HS2 Ltd, the company delivering Britain’s new high speed railway, kicked off a four-day event yesterday that will showcase many of the EUR13.49 bn (GBP12bn) worth of contract opportunities. ... More Information

Several milestones for the Grand Paris Express

TBM Ines, began its journey from the Verdun shaft at La Courneuve on the 11/08/2020, and has now reached Le Bourget RER station for Line 16. The TBM – which is 100 m long and ... More Information

Robbins Webinar - Encountering Caverns in France: TBM Tunnelling in Karst Conditions

France's recently completed Galerie des Janots featured some unexpected challenges: Karst cavities large and small were found throughout the bore as well as two large, uncharted caverns. During ... More Information

Moscow’s light green line updates

This week construction of the left and second tunnel began, A route that will go from Lianozovo to Phystech station for the Lyublinsko-Dmitrovskaya metro line or light green line in Moscow. ... More Information

TBM Coline crosses the 1,000 metre mark!

After having crossed the "Saint-Genis-Laval - Hôpitaux Sud" station at the beginning of July, the tunnel boring machine crossed the 1,000-metre mark last Friday 13/11/2020. The TBM is ... More Information

6th edition of the ITA Tunnelling and Underground Space Awards

On the 3-4 December 2020 you will be able to attend the presentations of the finalists and the announcement of the winners. This year the 6th edition of the ITA Tunnelling Awards will move into a ... More Information

Press release - Works to kick off on the Suburban Rail Loop

The Andrews Labor Government is delivering the Suburban Rail Loop, unveiling a huge Budget boost that will pave the way for the biggest rail project ever built in Victoria – and help drive our ... More Information

TBM Meg is on her way to State Library Station

Last week TBM Meg was relaunched from the Metro Tunnel's Parkville Station site towards the CBD, to complete the second tunnel. It follows the relaunch of TBM Joan, which began a parallel 1 km ... More Information

Federal Council approves the Rhine tunnel project in Basel

At its meeting on 11 November 2020, the Federal Council approved the general project for the Basel Rhine tunnel. The new tunnel will relieve the frequently congested A2/A3 between the Hagnau and ... More Information

Insight into finalist for ITA ‘Overcoming the Challenge’ category

The Mexico City-Toluca interurban rail line project has been shortlisted as a finalist for the ITA tunnelling awards in the category “Overcoming the Challenge’ - High performance ... More Information

Highways England -Lower Thames Crossing Update

Highways England is inviting tenders to build the longest road tunnel in Britain that sits at the heart of the proposed Lower Thames Crossing, the most ambitious road project for a generation. ... More Information

Snowy 2.0: first TBM components arrive at site of Australia’s biggest Hydropower Project

Throughout the beginning November a huge 750-t crane has been lowering into place the giant front shield parts of the first of the three Snowy 2.0 TBMs. Snowy 2.0 is the largest renewable energy ... More Information

BBT - First breakthrough under the Isarco river

On the 6th of November 2020 an excavator with hydraulic hammer broke through the first 59 m tunnel under the Isarco river. The ground in the most southern construction lot of the ... More Information

Rijnland Route Updates

On 01/09/20 after 3.5 months of excavation and a month ahead of schedule, the TBM called Gaia completed the second tunnel tube for the Rijnland Route. The TBM covered a distance of 2,250 m, from ... More Information

New milestones for Tideway

Connection Tunnel Excavated at Cremorne Wharf - Cremorne Wharf Depot became the latest site in the central section of the Tideway project to connect to the main 'super sewer' tunnel as ... More Information

COMPLIMENTARY ROBBINS WEBINAR - TUNNELLING PAST THE VOIDS

France's recently completed Galerie des Janots was the scene of some unforeseen challenges. During excavation with a Main Beam TBM, crews encountered a stalagmite studded 8,000 cubic meter ... More Information

Sotecnisol Press Release - Tunnel Waterproofing

For over the last 50 years, Sotecnisol led the waterproofing market in Portugal and has grown a strong presence in other countries, namely in tunnel drainage and water proofing with PVC ... More Information

Virginia Launched Largest Infrastructure Project in Commonwealth’s History

On 29/10/20 Governor Ralph Northam joined the Virginia Department of Transportation (VDOT) and state and local leaders to break ground on the Hampton Roads Bridge-Tunnel (HRBT) Expansion Project. ... More Information

HS2 launches first virtual ‘Meet the Contractor’ event

Registrations now open for over 1,000 one-to-one meetings with HS2 contractors. HS2 Ltd’s third annual ‘Meet the Contractor’ event takes place between 23rd-26th November ... More Information

TUNNELMESH – 100% WIRELESS CONNECTIVITY FOR TUNNELS

A modern, safe, resilient, and reliable communication system is a key component of any confined space, mine, or tunnel access safety system. Tunnel workers rely on regular contact with their ... More Information

Results of the Purple Line Extension Section 3 TBM art and naming contest

Metro has selected the winners of its art and naming contest for its third and final set of tunnel boring machines that will dig twin Purple Line Extension subway tunnels between Westwood and ... More Information

Melbourne Metro Tunnel Project Updates

TBM Joan - On the 20/10/20 TBM Joan began its 1 km journey from the Parkville Station site to the new State Library Station site of the Melbourne metro. Named after Victoria’s ... More Information

BBT - Isarco river underpass tunnelling begins

After months of preparation on the Isarco River Underpass construction site, the excavation of the first few metres of the tunnel has begun. The excavation works in this southernmost ... More Information

Designs for HS2 Canterbury Works vent shaft and headhouse revealed

On 27/10/2020 HS2 revealed updated designs for the Canterbury Works vent shaft headhouse and compound, in South Kilburn, London. It will be one of four structures that will be built to provide ... More Information

Super sewer drives its way through London passing underneath 21 bridges

Super sewer drives its way through London passing underneath 21 bridges A giant tunnel has this week been dug under the final bridge in London before completion. On 26/10/2020 ... More Information

Modified TBM to construct the diversion tunnel for the Mularroya dam

In March 2008 the ACCIONA and Sacyr consortium were awarded the contract to design and construct the Mularroya dam in La Almunia de Doña Godina, Chodes and Ricla (Zaragoza). The contract ... More Information

Factory Acceptance Testing for the Ship Canal Water Quality Tunnel Storage Project’s TBM

A TBM EPB-Shield (diameter 6.57 m) has been assembled for the Seattle Public Utilities and King County Wastewater Treatment Division's Ship Canal Water Quality Tunnel Storage Project. The TBM is ... More Information

ITA Tunnelling Awards 6th edition - List of finalists

Online Conference and Ceremony - The international competition launched in 2015 by International Tunnelling and Underground Association (ITA) returns in 2020 for a promising 6th edition. For 5 ... More Information

HAGERBACH NXT 50 WEBINAR – Moving beyond the obvious

Taking part in the HAGERBACH NXT 50 series of webinars will broaden your understanding on the role of underground spaces in helping humankind sustainably develop on this planet and eventually future ... More Information

Clearwater Project’s TBM arrives

On the 22/10/2020 the Mixshield TBM (diameter 6.54 m) for the Los Angeles Outfall Tunnel project arrived at its destination. The Los Angeles County Sanitation Districts invited Los ... More Information

City Rail Link’s TBM arrives in Auckland

Last week a TBM, named Dame Whina Cooper in honour of the Maori rights champion, arrived in Auckland after a voyage of more than 9000 km from its factory in southern China. The ... More Information

InnoTrans postponed until 2022

Due to the constantly changing situation regarding the coronavirus pandemic and the resultant lack of planning certainty, InnoTrans is to be postponed until 2022. After consulting with international ... More Information

Cross River Rail Update

Work is progressing well, across Cross River Rail’s eight worksites in Brisbane. The project will help transform South East Queensland by unlocking the bottleneck at the core of ... More Information

Sydney’s newest motorway, NorthConnex, will be open to traffic on Saturday 31st October

NorthConnex, the dual 9 km tunnel which will link the M1 Pacific Motorway at Wahroonga to the Hills M2 Motorway at West Pennant Hills, will open to traffic on the 31/10/2020, taking ... More Information

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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

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