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Minneapolis Central City Tunnel: Project updates

The City of Minneapolis Public Works Department is constructing a new parallel storm tunnel, enlarging a portion of the existing storm tunnel, and constructing a new tunnel access in Downtown ... More Information

Press release - The Norwegian Coastal Administration continues work on the Stad ship tunnel

In early May the Norwegian government presented its proposal for a revised national budget for 2023. There it emerged that the cost estimates for the Stad ship tunnel have increased ... More Information

The American Shotcrete Association Courses

The American Shotcrete Association (www.shotcrete.org) provides ACI Shotcrete Nozzleman and/or Shotcrete Inspector Certifications worldwide! As the foremost resource for shotcrete application, ... More Information

Φ14.02 TBM 'New Crossing' Assists the Breakthrough of Shanghai Airport Link Line Tunnel Section Parallelling with High Speed Railway.

On April 12th, the 14.02-meter large diameter CRCHI TBM named 'New Crossing' successfully completed its Lot II tunnel section, by tunnelling the Shanghai airport link line for the first municipal ... More Information

BART Silicon Valley Phase II Project - Preparing for Early Construction Activities at Newhall Yard site

In preparation for construction of VTA’s BART Silicon Valley Phase II Extension Project, VTA’s tunnel and trackwork contractor, Kiewit, Shea, Traylor (KST) have developed a Construction ... More Information

Work underway on the High Speed Railway Bypass in Florence, Italy

On 15 May 2023 the official ceremony was held for the beginning of the construction of the Florence high-speed bypass which included the new high-speed station Firenze Belfiore. The ... More Information

West Gate Tunnel Project - the boring of the two twin tunnels is now complete

The West Gate Tunnel Project marked a major milestone with TBM Bella breaking through in South Kingsville, completing a 4km journey from the west side of the Maribyrnong River under Yarraville, to ... More Information

Update on Robbins Main Beam TBM for the Lower Meramec Phase 2 tunnel

The Robbins Main Beam TBM for the Lower Meramec Phase 2 tunnel packs a lot into a small 3.35 m diameter: 360-degree probe drilling, high-performance drive motors, 192 tons of machine. See the ... More Information

Eurock 2024 - Call for Abstracts

Press Release - The call for abstracts for Eurock 2024 has opened! The European Rock Mechanics Symposium will be held in Alicante (Spain) on July 15-19, 2024. Click here to submit your ... More Information

NASTT 2024 No-Dig Show Call for Abstracts

The North American Society for Trenchless Technology (NASTT) is accepting abstracts for its 2024 No-Dig Show to be held at the Rhode Island Convention Center in Providence (Rhode Island, USA) ... More Information

India/Agra Metro - TBM Yamuna breaks through at Agra Fort station

Back in February the Robbins crew and contractor Afcons Infrastructure Ltd (Mumbai)/ Sam India Builtwell Pvt Ltd (Delhi) celebrated the site acceptance test for the first of two 6.65 m diameter and ... More Information

USA/Texas - Arrived on site the TBM EPB for the PL19TUN integrated pipeline project

Traylor-Sundt Construction Joint Venture continues to make progress on the Section 19 Long Tunnel Crossings (PL19TUN) integrated pipeline project in Henderson County, Texas. The project is spread ... More Information

TERRATEC EPB TBM is rocking at Mithi River

Press release - TERRATEC 3.14m diameter EPB TBM is making excellent progress for Mithi River Water Quality Improvement Project in Mumbai, India. TERRATEC 3.14m diameter Earth Pressure Balance ... More Information

CIFA takes its ninety-five years of history to Samoter

Press release - CIFA will be at Samoter 2023 (area F stands 21-24) while celebrating its 95th anniversary. Since its foundation, CIFA has grown alongside the changes all around the world, ... More Information

The World's Largest - 52 TBMs Group in Guangzhou Metro Construction

The construction project of Guangzhou Metro Line 18/22, as the largest metro investment in China, has attracted much attention. CRCHI has tailored 52 φ8.8m EPB/Slurry TBMs for the project, ... More Information

WTC 2023 - Digital presentation information

On 25/04/2023 the digital presentation to showcase the World Tunnel Congress 2023 was held online. The actual congress will be between the 12-18 May at the Megaron Athens International Conference ... More Information

STUVA-Expo 2023 - More than 150 exhibitors already registered

STUVA Expo will take place in Munich on the 8th and 9th of November 2023 alongside the STUVA Conference. Already more than 150 companies have already booked their trade fair ... More Information

HS2’s multi-billion-pound boost for UK businesses

HS2’s construction is helping to keep over 2,000 UK businesses afloat as they continue to tackle difficult economic conditions. Latest figures from HS2 show that tier two subcontracts ... More Information

€3 Billion in news tenders on the way for the new stage of the Lyon-Turin project

PRESS RELEASE - New tenders, with an estimated value of EUR3 billion, are on the way to build the Mont Cenis base tunnel which is under construction beneath the Alps between France and Italy. More ... More Information

First Tunnel Breakthrough achieved in Delhi

At the beginning of April NCRTC achieved its first tunnel breakthrough for the Delhi section of the Delhi - Ghaziabad - Meerut RRTS corridor. The TBM Sudarshan 4.1 made the breakthrough from the ... More Information

Green Light from Bolzano Municipality for the new Virgolo railway tunnel

On the 17/04/2023 the Bolzano City Council gave the go ahead for RFI to construct the new Virgolo railway tunnel with three tracks and the moving of the Merano line junction. The new Virgolo tunnel ... More Information

First TBM arrives at Broadway City Hall

On April 14, 2023 Elsie, one of two TBMs constructing the twin tunnels for the Broadway Subway, brokethrough to the future Broadway-City Hall Station, that will be the busiest and largest station on ... More Information

Snowy 2.0 Project Update

Construction of Snowy 2.0 - a critically important, pumped-hydro expansion of the Snowy Scheme in Australia, continues to make progress across multiple worksites. The project involves linking two ... More Information

HS2 launches third tunnelling machine in London

HS2 has once again begun tunnelling under the capital, launching its third giant Tunnel Boring Machine (TBM) in London. The tunnel won’t be used by HS2 trains, but instead will be used to ... More Information

World Tunnel Congress 2023: “The underground space is often undervalued as an asset”

A conversation between Arnold Dix, President of ITA and Nikolaos Roussos, President of GTS As the new edition of the WTC in Athens from 12 to 18 May approaches, Arnold Dix, President of the ... More Information

Chennai Metro Update

Marina Beach to Kodambakkam Flyover - The underground section of this corridor is split into two packages (UG-01 & UG-02) each of which contains 4 km of twin tunnels. In order to complete ... More Information

TERRATEC TBMs launched for Surat Metro

TERRATEC Tunnel Boring Machines keep on advancing on Surat Metro Rail project in India. TERRATEC is pleased to announce the launch of another EPB TBM for Surat Metro in India. This unit is a ... More Information

BBT - TBM Virginia has reached the border with Austria

On 28/03/2023 an important milestone was reached for the Brenner Base Tunnel, on the Italian side, at the Mules (BZ) construction site. After 14 km of excavation and almost 4 years of ... More Information

HS2 tunnelling team celebrate milestone TBM breakthrough in Warwickshire

Press release - Today [Thursday 30 March] HS2’s tunnelling team in Warwickshire celebrated the milestone breakthrough of tunnel boring machine ‘Dorothy’ as the giant cutterhead ... More Information

Robbins TBM Miss Briella will drive the Lower Meramec Tunnel Phase 2 project

AFFHOLDER (formerly known as SAK Construction, LLC tunneling) will use the TBM named Miss Briella for the Lower Meramec Tunnel Phase 2 project, part of the Metropolitan St. Louis Sewer District. ... More Information

Tunnel segments arrive for HRBT Expansion Project

Last week the HRBT Expansion Project hit a major milestone as the first set of tunnel segments arrived by barge to the South Island from the precast plant in Cape Charles, VA. Nine (9) tunnel ... More Information

High Speed Two: Euston

Press release - The government should use the two-year pause on new construction work at HS2 Euston to develop a design that is affordable, deliverable and value for money, according to a new ... More Information

Two 15.01m Slurry TBMs for CRCHI Break through on Two Projects

Press Release - Xiangya Road river-crossing tunnel in Changsha City - On March 12th 2023, the largest slurry TBM in China’s Hunan Province broke through, which marks the completion ... More Information

Market dialogue is ongoing about how a fixed €5bn HH connection can be implemented - Denmark - Sweden

Press Release - In autumn 2022, the city of Helsingborg went out to the market with an international RFI (Request for Information) to collect proposals on how a fixed connection between Helsingborg ... More Information

WTC2024 - Call for abstracts

The 2024 World Tunnel Congress (WTC2024), the world's major tunnel and underground engineering industry congress, will be held in Shenzhen, China from 19th to 25th April 2024 with the ... More Information

Press Release - HS2 reveals final design for last of seven key Chiltern Tunnel structures

HS2 have revealed the final designs for the North Portal of the Chiltern Tunnel – the last of seven key structures for the high speed rail project’s longest tunnels. Once construction ... More Information

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Tunnelling News

Construction of Shinku La Tunnel to bolster all-weather connectivity in Ladakh Rising Kashmir

Leh, Apr 21: Member of Parliament from Ladakh, Jamyang Tsering Namgyal, announced that work on the strategically vital Shinku La Tunnel is set to ... More Information

Tunneling works for key Davao bypass road seen completed this year

The Davao City Bypass Construction Project is among the 14 foreign-assisted infrastructure projects approved by the National Economic Development ... More Information

Hamptons Subway Cuts Ribbon on New Foxwoods Tunnel

Hamptons Subway, with U.S. Transportation Secretary Pete Buttigieg, cut the ribbon to begin construction of the new tunnel from Sag Harbor to ... More Information

_TBM quartet tackles differing geology on twin bore tunnel under London

All four tunnel boring machines are now working on HS2's Northholt tunnel, which is divided into two geologically differing sections. More Information

CRCHI video

New CRCHI video for world leading underground equipment - Technology innovates the world... More Information

Deer Creek update

Exciting update from the Deer Creek project team! The Wasatch Worm is almost in the ground and will be ready to start tunneling this week. Over the next few months, it will be devouring a ... More Information

Stonehenge tunnel: Underground cabling installed, while other enabling works paused

The scheme, which involves the construction of a new 12.8km two-lane dual carriageway with a 3.2km tunnel under the Unesco World Heritage Site, was ... More Information

Nepal's first transport tunnel being built with Japanese assistance

Nepal and Japan signed the contract for construction of the tunnel on September 23, 2019, while the commencement started on November 14, 2019. More ... More Information

Cowi selected as technical advisor on world's first ever ship tunnel proposed in Norway

Construction is currently estimated to begin next year. The objective of the Stad Ship Tunnel project is to improve the navigability and safety of ... More Information

How Arnold Dix became a Himalayan hero after rescuing 41 workers from Indian tunnel collapse

Arnold Dix slid his hand into a gap in the rock at the entrance to a tunnel where 41 men were trapped alive, put his back against the cold stone and listened, and felt, and listened some ... More Information

Central Interceptor Tunnel Boring Machine

Watercare Services Limited’s Central Interceptor Tunnel Boring Machine, Hiwa-i-te-Rangi, has achieved a significant milestone, reaching 10,000m (10 kilometres) since leaving Māngere in ... More Information

New tunnelling machine joins three others digging high-speed line under London

Construction of the new HS2 line has hit another major milestone with the launch of the fourth – and final – machine being used to build the giant Northolt Tunnel beneath the capital... More Information

Lower Thames Crossing planning decision moves a step closer

On 21 March, the Planning Inspectorate confirmed that the Examining Authority has sent their recommendation report on the Lower Thames Crossing Development Consent Order (DCO) application ... More Information

AECOM-Jacobs JV signs on to $6B Amtrak tunnel job

Amtrak is gearing up to dig deep in Baltimore. The railroad company selected ADVANCE, a joint venture between Dallas-based infrastructure firms AECOM and Jacobs, to serve as the delivery ... More Information

Lower Thames tunnel boosts new orders data

UK construction contract awards reached their highest level in February 2024 for seven months, according to one of the industry's data monitoring ... More Information

The incredible new £53m tunnel in Spain linking two pretty cities

The work is part of efforts to modernise the railway line between Ourense and Lugo in the autonomous Galicia region. Spanish construction giant ... More Information

ECRL hits new milestone with the completion of three tunnel excavations in Bentong district

The ECRL project features the construction of 41 tunnels with a total length of approximately 69 km along its rail alignment. Section A (Kota Bharu- ... More Information

Boring Co. receives go-ahead to drill more Vegas Loop tunnels

LVCVA President and CEO Steve Hill offered the company access to safety officers after the company was fined $100000 for construction violations ... More Information

Biden-Harris Administration Announces Nearly $4 Billion in Support

The project includes construction of a new two-track heavy rail tunnel along the Northeast Corridor from the Bergen Palisades in New Jersey to ... More Information

World's Longest Twin-Lane Tunnel Inaugurated In Arunachal Pradesh

Constructed by the Border Roads Organisation (BRO) for INR 825 crore, the tunnel is strategically vital due to its proximity to the Line of Actual ... More Information

The £13.3bn tunnel 8.5 miles long that could transform one of the world's biggest cities

The Second Avenue Subway's per-mile construction cost is higher than that of other projects in similar cities like London's Crossrail and Paris's ... More Information

First look inside Silvertown tunnel as TfL confirms summer 2025 opening

... tunnel construction in the face of environmental concerns. Construction is costing about £1bn – with a further £1.2bn due in annual repayments ... More Information

Consortium of Aecom and Arcadis appointed to tunnel and station design contract for Ontario metro

The scope of work for the PTUS contract includes construction of 3km of twin tunnels underneath Pape Avenue between the Gerrard tunnel portal and ... More Information

Snowy Hydro is inching towards powering the nation

... tunnelling progress of one of its critical boring machines ... Some 80 metres underground in temperatures well in excess of 30C, tunnel boring machine ... More Information

Judge rejects challenge to £1.7bn Stonehenge Tunnel

The High Court has thrown out a case brought by campaigners against the £1.7bn Stonehenge Tunnel project. Mr Justice Holgate said most of the ... More Information

9 of the longest underwater tunnels in the world

These stations are the first railway stations constructed under the sea and serve as emergency escape points in case of a disaster. Today, the Seikan ... More Information

EPC contractors sought for Dubai's £17bn sewer tunnels project

The strategic sewerage tunnels project by Dubai Municipality known as the Deep Tunnels Portfolio will involve the construction of wastewater assets ... More Information

The $7BN Mega-Tunnels You've Never Heard Of

But thanks to some incredible underground construction methods, Antwerp is now on course to complete a massive piece of infrastructure it's been ... More Information

3 listed & 2 Unlisted get LOA to build Mumbai Coastal Road Ext

The underground tunnel will run below Malad and Kandivali through the Mangrove creeks and a tunnel boring machine (TBM) will be used for this phase. More Information

New tunnel planned to under the Thames at Tilbury and Gravesend

ianVisits ... tunnel (c) National Grid. Construction will be done by a conventional tunnel boring machine (TBM), which will launch from a 41-metre deep shaft dug ... More Information

Third tunnel breakthrough on Guildford sewage works

A micro-TBM recently broke through on a new tunnel being built for Thames Water's project to relocate sewage treatment works in Guildford. More Information

Japan maglev train project being derailed by Shizuoka stalemate

Opposition in Shizuoka Prefecture emerged from fears the planned tunnel construction for the line could adversely affect the overall volume of water ... More Information

World's most expensive tunnel that ended up costing a whopping £2.3m a day to build

Over 5000 construction workers were employed to complete the Central Artery/Tunnel Project in the United States. More Information

Underground or Elevated Metro Rail – Which One is Better for India?

The cost of tunnel boring machines (TBM) is another significant component. The tunneling cost can be reduced by making longer tunnel contract ... More Information

From Undersea Tunnel To Station Redevelopment

The NHSRCL will construct an adjoining tunnel location as part of the package. To construct this tunnel, the Tunnel Boring Machines (TBMs) with a ... More Information

Second tunnel boring machine for Broadway Subway reaches South Granville Station

The tunnel boring machines will end their journey just before Arbutus Station, which spans two city blocks, with the west block used as the footprint ... More Information

BESIX-MTH awards Nordhavn work to Bravida

... construction of the Nordhavn Tunnel. By & Havn is tasked with developing Ørestad and the port of Copenhagen and runs the daily operations of the ... More Information

After India's first undersea tunnel, Mumbai to get its longest intra-city underground road

... construction with viaducts and modern safety measures. The Coastal Road tunnel is India's first undersea tunnel, constructed using a 12-metre ... More Information

3,200 tonne TBM delivered to France-Italy rail tunnel project

A tunnel boring machine (TBM) manufactured by German tunnelling and mining firm Herrenknecht has been delivered to the Lyon-Turin Mont Cenis base ... More Information

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