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CAIS – Compress Air Intervention System

CAIS – Compress Air Intervention System

Compressed Air Work GmbH has developed the first mobile automated system for decompression chambers for personnel known as CAIS – Compress Air Intervention System. Fundamentally, the system ... More Information

Five CIFA Spritz Beton machines for the Brenner Base Tunnel

Five CIFA Spritz Beton machines for the Brenner Base Tunnel

Work on the tubes of the Brenner Base Tunnel is in full swing on different fronts. Excavation of the new Tulfes-Pfons section officially began on 18.09.2014. In 5 months, at 16.02.2015, ... More Information

Shenzhen metro lines progress

Construction on the extensions of seven lines to add 87 km to the Shenzhen, China metro system will start between 2015 and 2017. The Shenzhen Rail Construction Office plan for this third phase of ... More Information

Waterview progress

Waterview progress

In Auckland, NZ, by early-February, 2015 Waterview TBM Alice had advanced 125 m from the northern approach trench, in the second of the motorway tunnels, the northbound tunnel. When the TBM reaches ... More Information

Surfacing Bertha

Surfacing Bertha

In Seattle, WA contractor STP is making final preparations for TBM Bertha’s move into the 36.57 m-deep pit from which the machine will be hoisted to surface for repairs. STP has injected grout ... More Information

Marao tunnel restarts

Marao tunnel restarts

Last November, in northern Portugal, the consortium Teixeira Duarte/EPOS started completion work on the bi-tube 5.7 km-long Marao tunnel. Work on the missing link on the 32 km-long A4/IP4 connection ... More Information

Intermat in Paris

Intermat 2015, the international exhibition for equipment and techniques for the construction and materials industries, will take place 20-25th April, 2015 at Paris Nord Villepinte, France. Online ... More Information

NorthConnex financing

On 02.02.2015 the contracts between the proponents Transurban and Westlink M7 shareholders and the NSW Government were signed on the $3 billion NorthConnex project, which will be funded through toll ... More Information

Cityringen metro update

Cityringen metro update

On 29.01.2015 TBMs Eva and Minerva arrived at the station box at Copenhagen Central station of the Cityringen metro circle line. The 15.5 km-long automated metro line is due to open in July 2019, ... More Information

Breakthrough at Karaula

Breakthrough at Karaula

Excavation works at the 902 m-long Karaula tunnel, section Kladanj-Podpaklenik, which lies on the M-18 Sicki Brod-Sarajevo road have been completed, with the official ceremony held on 28.01.2015. ... More Information

Breakthrough in Basci

Breakthrough in Basci

Driving and lining works have been completed in the 530 m-long Basci tunnel, on the new Aurelia road section from Albisola to Savona in Liguria, Italy. The Consortium Letimbro, headed by CMC, ... More Information

Cross Harbor Freight

The Cross Harbor Freight Program (CHFP) aims to improve the movement of freight across New York Harbor between the east-of-Hudson and west-of-Hudson regions. Ten viable build alternatives have been ... More Information

Midtown immersed tube

Midtown immersed tube

The new Midtown Tunnel is currently under construction at Sparrows Point, MD, US. The tunnel is comprised of 11 concrete elements, which, once complete, will be towed down the Chesapeake Bay to the ... More Information

Northern Line extension funded

Northern Line extension funded

On 29.01.2015 the European Investment Bank announced it will provide GBP480 million for the extension of the Northern Line to Battersea. The long-term loan represents nearly 50 percent of the ... More Information

Crossrail progress

Crossrail progress

On 29.01.2015 the TBM Elizabeth (1,000 t weight and 7 m diameter) successfully broke into the eastern end of Liverpool Street Crossrail station in London, UK. The breakthrough, 40m beneath the City, ... More Information

Scarborough Subway extension in Toronto

Scarborough Subway extension in Toronto

The City of Toronto, together with the Toronto Transit Commission (TTC), is planning an extension to the Bloor-Danforth Subway (Line 2) to better serve Scarborough’s 650,000 residents. The ... More Information

Milestone for Eglinton Crosstown

Milestone for Eglinton Crosstown

The two TBMs driving the western segment of the 10 km-long underground tunnel on Toronto’s Eglington Crosstown reached the half-way point of their journey on 21.01.2015, breaking through into ... More Information

Bohai undersea tunnel

Bohai undersea tunnel

The National Development and Reform Commission (NDRC), China's economic planner, agreed to review and support the high-speed railway project under the Bohai sea connecting Dalian in Liaoning ... More Information

Varese orbital opening

On 24.01.2015 the 4.9 km-long first lot of Varese orbital motorway opened between A8 interconnection at Gazzada Schianno and Vedano Olona near Varese municipality. More Information

Tunnels and Bridges

Tunnels and Bridges

The APAC tunnels and bridges conference is scheduled for Kuala Lumpur, Malaysia on 15-16th April, 2015. Themes are design, construction, maintenance and inspection, with 23 speakers from government ... More Information

Engineering underground space in London

The one-day ICE conference on this topic takes place on 18.02.2015 at One Great George Street, Westminster. It will explore the solutions and opportunities that underground space presents for ... More Information

Full bore at North West Rail Link

On 14.01.2015 the fourth TBM, named Maria after 19th century Aboriginal rights advocate Maria Lock, started boring for North West Rail Link in Sydney, Australia. The 900 t TBM was delivered to the ... More Information

Setronic Verona Srl at Intersec

Setronic Verona Srl, specialized in design, manufacture and after sales service for optical beam smoke and fire detectors, opacity analyzer, calibrating and testing equipment, and accessories, will ... More Information

tunnelbuilder – first for bids

tunnelbuilder – first for bids

Our readers have to be advised promptly and accurately of the bids and awards on which their business depends. That is why tunnelbuilder websites are updated whenever there is news, even at weekends ... More Information

Aurelia road to Savona

The 188 m-long Grana tunnel on the 5 km-long new Aurelia road section from Albisola to Savona in Italy has been completed using conventional methods. Meantime, TBM excavation of the 530 m-long Basci ... More Information

TBM Elaine at Rennes

TBM Elaine at Rennes

On 19.12.2014 TBM Elaine was named for excavation of an 8 km-long tunnel for the 13 km-long metro Line B in Rennes. The line, which will serve 15 stations and connect the southwestern and ... More Information

Waterview TBM resumes

In New Zealand, the huge Waterview TBM has been successfully turned and on 17.12.2014 resumed tunnelling, heading south on the second of the motorway tunnels. The machine will advance far enough to ... More Information

Atlas Copco rigs relaunch

The Boomer M-series drillrigs, the medium sized single and twin boom rigs favoured by tunnellers, have been the subject of a major upgrade. Read the press release and contact ... More Information

Evergreen line

The construction for the Evergreen line includes a 2 km-long bored tunnel with tunnel portals located in Port Moody and Coquitlam, Canada. The tunnel is being constructed with a 10 m-diameter TBM, ... More Information

Breakthrough under Lake Mead

Breakthrough under Lake Mead

On 10.12.2014 the hybrid TBM launched in 2011 holed the 4.5 km-long tunnel beneath the bed of Lake Mead. The project involves the construction of a system for collecting and transporting the waters ... More Information

Hydraulic design engineer wanted

Hydraulic design engineer wanted

International tunnelling recruitment specialist iPS is seeking a design engineer for heavy hydraulic systems to be located in France on a permanent basis, starting Q1/2015. See below for more ... More Information

Milestone for NY subway

The construction of the 86th Street Station cavern of the Second Avenue Subway in New York has been completed this week. Work began in August of 2011. This project, valued at EUR272 million ... More Information

A toast to our followers!

The management and staff at tunnelbuilder ltd send greetings and good wishes to all our readers and clients around the world at this festive time. While the international financial news has not ... More Information

Muhlhauser acquires Obermann

Muhlhauser acquires Obermann

Obermann becomes the first acquisition in the 100-year history of Muhlhauser, the Germany-based global market leader in tunnelling logistics. Read the press release and visit www.khmte.com. ... More Information

Terratec TBM for Laos

Terratec TBM for Laos

Terratec, after a successful test on 06.12.2014, has delivered a new Double Shield TBM to Seli Overseas S.p.A. of Italy, the tunnelling subcontractor for the Xe-Pian Xe-Namnoy Hydropower Project, ... More Information

Robust Robbins EPB for Seattle

Robust Robbins EPB for Seattle

On 17.11.2014 the 6.65 m-diameter Robbins TBM EPB began its journey south into the city of Seattle, Washington, USA. The machine, for contractor JCM North Link LLC (a JV of Jay Dee, Coluccio, and ... More Information

Tunnelling News

East West Rail between Bedford and Cambridge to include new tunnels

15 November, 2024 By Thames Menteth Revised proposals for the East West Rail scheme’s section between Bedford and Cambridge include a new section of railway, as well as new stations and ... More Information

Amtrak's $1.6B East River Tunnel Rehab Work Contractors Get Notice to Proceed

Amtrak's $1.6-billion East River Tunnel Rehabilitation Project in New York is advancing after construction manager STV Inc./Naik Consulting Group ... More Information

Tunnel Boring Machine for National Grid's VIP project in Eryri set to arrive in North Wales

National Grid is reaching a major milestone on the Eryri Visual Impact Provision (VIP) scheme with the arrival of its Tunnel Boring Machine (TBM) to ... More Information

Tunnel boring machine hits major milestone on Snowy 2.0 project

The Snowy 2.0 pumped-hydro megaproject recently marked a significant milestone, with one of three tunnel boring machines (TBM), Lady Eileen Hudson ... More Information

Morocco-Spain Underwater Tunnel Plans Move Forward with Renewed Focus

Discover the ambitious Morocco-Spain Underwater Tunnel project, set to connect continents in under 30 minutes and revolutionize travel between ... More Information

Alaska Transportation Department to spend $1 million on Knik Arm tunnel study

The results of the feasibility study will give us a better picture of how the project could be constructed, potential costs, and financing options,” ... More Information

Extra tunnels included in £6bn East West Rail scheme

Bowing to pressure to reduce the project's environmental impact two tunnels are now proposed for the new stretch of railway in Cambridgeshire. Design ... More Information

Balfour Beatty VINCI reaches halfway point on key HS2 'green tunnel'

As well as Burton Green, green tunnels will be constructed at Copthall in Hillingdon, Wendover in Buckinghamshire and Chipping Warden and Greatworth, ... More Information

Webuild-led consortium confirmed for US$1.1 billion tunnelling work

Webuild-led consortium confirmed for US$1.1 billion tunnelling work (US$1.1 billion) tunnelling package on the Suburban Rail Loop (SRL) East public transport project to a consortium of ... More Information

Balfour Beatty snares $746M I-35 rebuild in Texas

The London-based contractor will reconstruct 2.5 miles of the highway through downtown Austin and build a link to the future light rail line. AECOM-Jacobs JV signs on to $6B Amtrak tunnel ... More Information

Metro Vancouver digs water tunnel designed to withstand 'the big one' under Fraser River

Crews have begun construction on a new $450-million water supply tunnel between New Westminster and Surrey designed to withstand a major earthquake. More Information

Longest tunnel in Poland begins construction

The project, managed by the Polish company Budimex and Turkish Gülermak, includes 10 viaducts and 12 bridges. This unprecedented investment will ... More Information

Watercare Passes Key Milestone On $300M Programme To Improve Wastewater Services

Watercare and McConnell Dowell celebrate Piper's final breakthrough. On Sunday (subs note: November 10), Piper – a tunnel-boring machine – completed ... More Information

Tutor Perini Scores Contracts

The tunnel project includes the construction of two new shafts connecting to the surface and the use of a tunnel boring machine. The completed ... More Information

Bengaluru Metro completes tunnelling for longest underground line

The final breakthrough came from Bhadra, the last Tunnel Boring Machine (TBM) deployed, which completed a 937-meter stretch from K G Halli to Nagawara ... More Information

Eastern Freeway Upgrade preferred bidders confirmed

Tunnel boring is currently underway on the North East Link project, with machines currently digging under Yallambie. Federal Minister for ... More Information

Bengaluru civic body completes DPR for 18-km underground tunnel road network

Designed to ease Bengaluru's notorious traffic congestions, the project will deploy six massive Tunnel Boring Machines (TBMs) with a diameter of 14.7 ... More Information

Frontier-Kemper Awarded $1.1 Billion Kensico-Eastview Connection Tunnel Project

Frontier-Kemper Awarded $1.1 Billion Kensico-Eastview Connection Tunnel Project for New York City Department of Environmental Protection... More Information

Assam's first underwater tunnel: CM Himanta Biswa Sarma says DPR nears completion

Assam Chief Minister Himanta Biswa Sarma announced that the Detailed Project Report (DPR) for the Gohpur-Numaligarh tunnel project is almost ... More Information

The Tunnel Vision: A look at California's $20B plan to solve to the state's water crisis

Minassian describes the process, locations and implications of the operation using four tunnel boring machines. READ STORY | HEAR PODCAST. PART 3 ... More Information

Ruby deployed for final Metro West tunnel beneath Sydney Harbour

Tunnel boring machine (TBM) Ruby has begun carving out the final section of tunnel for the Sydney Metro West project. More Information

Photos: Inside the $250 Million Tunnel Being Constructed Under Columbus

Located at an average depth of 50 feet underground, the 12-foot-diameter tunnel has been under construction since early 2021. By the time it is ... More Information

Tideway: £4.5bn ‘super sewer’ begins to protect Thames as first 4 sites activated

The Thames Tideway Tunnel has commenced operation as the first four of 21 sites have been switched on. This means that, after eight years of construction, the 25km £4.5bn “super sewer” has ... More Information

Lowest bidder emerges for Dubai Metro Blue line

Dubai’s Roads & Transport Authority (RTA) opened bids from contractors for the contract to design and build Dubai Metro’s Blue Line on 8 October. The group of China Tiesiju Civil ... More Information

Sanya River estuary passage project makes steady progress

A drone photo shows the construction site of the Sanya River estuary passage project in Sanya, south China's Hainan Province, Oct. 12, 2024. The Sanya River estuary passage project ... More Information

Mumbai Metro 3: Breaking Ground, Defying Odds

Two tunnels for the 33.5-km corridor (Colaba to Aarey), totalling 55 km, were carved out, using 17 Tunnel Boring Machines (TBMs). Certain sections ... More Information

VIDEO: Drone fly through inside new HRBT tunnel

We can't fly you to the moon, but we can fly you through the new #HRBTExpansion tunnel. Drone video gives you a quick glimpse into the... More Information

Skanska receives Innovate UK funding to accelerate decarbonisation of concrete

Our Skanska Costain STRABAG JV has secured funding to trial repurposed London Clay as a low carbon alternative to cement... More Information

Longest Tunnel in the World Entering Final Phase Underneath Newburgh

Repair Plans for the Delaware Aqueduct in Wawarsing and Newburgh, NY. The plan for repairs involved the construction of a 2.5 mile bypass tunnel ... More Information

Two TBM's break through

Two TBM's break through. Joshua Farrell ... tunnelling segments to line the new tunnel walls. Work inside the ... More Information

Texas A&M eyes Elon Musk's Boring Company for tunnel system

A&M officials have conducted a feasibility study with positive results, but they have yet to talk with Musk about the project, Chief Operating Officer ... More Information

Construction Begins on £1.8bn Underwater Tunnel Under Panama Canal

The tunnel is part of Panama's Metro Line 3 monorail project, designed to ease traffic congestion in the metropolitan area. tunnel boring machine... More Information

Webuild at work on the massive railway tunnel at the heart of the Northeast Corridor

After years of planning, the Hudson Tunnel Project (HTP) to improve the railway connection between New York and New Jersey has begun. The first drilling contract for the tunnels, part of ... More Information

TfL Awards Contract for Elephant & Castle Tube Station Upgrade

Transport for London (TfL) has selected Dragados UK to design and construct new passenger tunnels at Elephant & Castle Tube station. These tunnels will connect the new station box to the ... More Information

More than 10 years of transformational tunnelling

More than 23,000 workers, 11 tunnel boring machines (TBMs) and an army of roadheaders and excavators are what it has taken for CPB Contractors to construct more than 80 kilometres of ... More Information

Ivy – the Newest Member of the DEME Marine Fleet on the Fehmarnbelt Tunnel Project

DEME have introduced “Ivy”, the newest member of their marine fleet for the Fehmarnbelt tunnel project! Specifically designed for the transport and immersion of the project’s 89 massive ... More Information

Double down: SA’s groundbreaking purchase

Up to twice the number of Tunnel Boring Machines previously anticipated will be delivered to South Australia for the landmark River Torrens to Darlington (T2D) Project, giving hope the ... More Information

CRL Tunnel Vision September 2024

This month in Tunnel Vision we’re celebrating Te Wiki o te Reo Māori! It’s been a busy month on the CRL fitting out the stations with all the technical systems needed to run and revealing ... More Information

Siddhababa tunnel achieves key breakthroughs.

The first and third cross passages of the Siddhababa Tunnel Project on the Siddhartha Highway have achieved breakthroughs. Construction of two of ... More Information