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Val Sarentino tunnels update

Val Sarentino tunnels update

On 16.03.2015 the EUR14.2 million fourth part of SS 508 Val Sarentino upgrading project starts, including the final work in the 1,520 m-long and 2 km-long tunnels constructed by Consorzio Stabile ... More Information

SR-710 North EI Studies

Four years ago, the California Department of Transportation (Caltrans) and the Los Angeles Metropolitan Transportation Authority (Metro) began studying the environmental impacts of continuing the ... More Information

North West Rail

North West Rail

In Sydney, Australia on 02.03.2015 Florence, the second North West Rail Link TBM, broke through into the new Norwest Station area. All four 900 t TBMs are now in the ground ahead of schedule and ... More Information

SR 99 disassembly underway

SR 99 disassembly underway

TBM Bertha reached her stopping point in the SR 99 tunnel access pit in Seattle, US on 03.03.2015, clearing the way for Seattle Tunnel Partners to begin a disassembly process that will likely take ... More Information

Tunnels and Underground Construction 2015

The abstract submission deadline for Tunnels and Underground Construction 2015has been extended to 31.03.2015. The conference will be held at the Holiday Inn, Zilina, Slovakia. Contact ... More Information

Turin Collegno-Cascine Vica

Last 17.02.2015 the City Council approved the final project of Collegno-Cascine Vica section, Line 1 of Turin metro. The project will be now evaluated by other authorities and MIT (Ministry of ... More Information

Turin metro start

Work is underway on the Lingotto-Bengasi (Line 1) section of the Turin underground. On 07.07.2014 Infra.To awarded to C.C.C. (Consorzio Cooperative Costruzioni), replacing Seli/Coopsette JV, the ... More Information

Follo Line award

Follo Line award

Companies from all over Europe and Asia will participate in the Follo Line Project in Norway, a 22 km-long double track line between Oslo Central Station and the public transport hub at Ski. Key to ... More Information

Promoter for Lyon-Turin HSR

Promoter for Lyon-Turin HSR

On 24.02.2015 Maurizio Lupi, the italian Minister of Infrastructure and Transport, and  Alain Vidalies, the French Secretary of State for Transport, signed in Paris an integration to the 2012 ... More Information

Call for papers ISTSS 2016

Call for Papers for the 7th International Symposium on Tunnel Safety and Security (ISTSS 2016), to be held Montreal, Canada, 16 - 18th March 2016 is now open. Manuscripts and posters submitted for ... More Information

Robbins revives NY EPB

Robbins revives NY EPB

On 28.01.2015 the 3.8 m-diameter TBM EPB Pat completed the last metres of the 2.9 km-long tunnel between Brooklyn and Staten Island. The tunnel, part of the New York City Harbor Siphons Project, is ... More Information

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

Tunnelling News

Bengaluru: Four infrastructure firms bid for Hebbal short tunnel

Bengaluru infrastructure: Four firms, including Dilip Buildcon and Max Infra, bid for BDA's Rs 1086 crore Hebbal short tunnel project... More Information

TBM readied for Montreal's Blue Line extension

A custom-made 9.7m-diameter tunnel boring machine (TBM) has been assembled and lowered ready to excavate the tube from the future Vertières stop to ... More Information

$11.5B Brenner Base Tunnel Nears End of TBM Excavation

With TBMs Olga and Wilma closing in, the 55-km rail project shifts from excavation to systems integration ahead of its planned 2028 opening beneath ... More Information

$6.75 Billion Unlocked for Turkey's Bosphorus Rail Project

Multiple Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) will need to be mobilized to carve out the subterranean corridors leading up to ... More Information

Tunneling for Nashville's underground Tesla project has begun

The Boring Company said that the first three weeks of the project will consist of the Prufrock-MB1, a machine that will help carve out the tunnel, ... More Information

Hudson Tunnel Project construction resumes

I look forward to celebrating the launch of our tunnel boring machines through the Palisades once GDC has assurance it will receive the steady flow ... More Information

Lower Thames Crossing

British suppliers could meet 90% of low carbon steel requirements. The proposed machine would be 16.4m in diameter, large enough to create a three‑lane tunnel bore, and is intended to dig ... More Information

Inside the Tunnel Boring Machine, Southampton Link Main project

A six-tonne tunnel boring machine is digging deep below the ground in Hampshire to help keep the county's taps and rivers flowing... More Information

TBM maestro inspects sites ahead of massive tunnel drive

The first machine components have arrived for the tunnel boring machines (TBMs) to be deployed on the Suburban Connect sites in Melbourne. More Information

Metrolinx provides major updates on subway and LRT projects across the GTA

Tunnel boring is advancing on multiple projects, with Scarborough's TBM ... Metrolinx says “Diggy Scardust,” the project's tunnel boring machine, is now ... More Information

Work in Progress: High-tech TBMs ready to carve underground corridor

The Bhopal Metro Rail Project is transitioning into its most challenging and sophisticated phase as two state-of-the-art Tunnel Boring Machines (TBMs) ... More Information

Sarens helps extract TBM at BC water supply project

The Annacis Water Supply Tunnel Project aims to increase the reliability and capacity of the water supply system in New Westminster, British Columbia. When complete, the tunnel will ... More Information

Judge rules in favor of New York and New Jersey for now in $16B tunnel fight with Trump

A federal judge ruled Friday to temporarily block the Trump administration from suspending federal disbursements for the Gateway Tunnel Project... More Information

Webuild: award for Sustainability Report for commitment to decarbonise through innovation

This includes the large tunnel-boring machines deployed on some of Europe's most complex projects: from the Salerno-Reggio Calabria ... More Information

Clearwater update reports initial entry area is 'stable and intact'

The tunnel boring machine being used in the project remains trapped underground just ahead of where the breach occurred. The ambitious, $630 ... More Information

Tunnel Boring Machine Market Size estimated at USD 7.08 Billion

The Tunnel Boring Machine (TBM) market is experiencing significant growth, driven by increasing urbanization, infrastructure development, ... More Information

Completing the First Section of Line 3: Tunnel Boring Machine Roars as it Emerges at Balboa

The Panama tunnel boring machine emerged and completed its first major task: the first section of the Line 3 Metro tunnel. More Information

Twin tunnel-boring titans prepare to dig new road under Sydney Harbour

Twin tunnel-boring titans are preparing to launch under Sydney Harbour to dig out a new road crossing from Birchgrove to Waverton... More Information

Monica Breaks Ground on Snowy 2.0

Monica the tunnel boring machine, with the renewable energy mega-project now more. TBM Monica is among the world's most advanced tunnel boring machines... More Information

Snowy 2.0 sets new tunnel boring machine to work, completes 46 underground concrete pours

Snowy 2.0 has set to work a fourth tunnel boring machine, a $75 million piece of drilling equipment purpose built to complete excavation of the huge pumped hydro project’s “geologically ... More Information

World's 'largest' underground assembly of tunnelling machines happening beneath Sydney

Workers are craning into place about 167 major pieces that will form the first of two giant boring machines. Once assembled like giant Meccano sets, ... More Information

Tunneling Begins on Major Water Pipeline for South Hillsborough

TAMPA, Fla. — Tampa Bay Water has begun construction on a major underground pipeline project aimed at meeting rising water demand in southern Hillsborough County, where population growth ... More Information

The massive £3billion tunnel designed to connect two continents under the sea

The construction of a huge underwater multi-tiered tunnel is underway in Turkey, that will create a direct route from Asia to Europe - and is expected to carry 1.3 million passengers a ... More Information

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information

Ground preparation for Lower Thames Crossing tunnelling

Work is ongoing to overcome sub-optimal ground conditions in preparation for the start of tunnelling on the Lower Thames Crossing in late 2028, according to the project’s tunnels director... More Information

LA Metro approves massive $25B underground rail line to bypass 405 Freeway

The LA Metro Board unanimously approved an underground heavy rail line to connect the San Fernando Valley and the Westside, bypassing the congested 405 Freeway. The nearly 13-mile route, ... More Information

TUNNEL VISION Mega £7.4bn undersea tunnel connecting two CONTINENTS just got one step closer

A MAJOR £7.4 billion underwater tunnel connecting two continents has taken a step closer to construction. Experts have said the 24-mile tunnel is “technically viable”, paving the way for ... More Information

TBM breakthrough in Sydney

Tunnel boring machine (TBM) Jane Starkey successfully completed her 1.2km underground journey through challenging Sydney sandstone... More Information

Hochul announces $25 million for Harlem crosstown subway tunnel design

At E. 120th St., a pair of tunnel-boring machines — currently under construction in Germany — will bore new, 8,400-foot tunnels north from the end ... More Information

Tunnelling under the Yarra River

Our two Tunnel Boring Machines (TBMs) will soon be travelling underneath the Yarra River... Approximately 300 metres of the 6.5 kilometre North East Link will be under the Yarra ... More Information

The Boring Company says its tunneling machine is 'ready to mine in Nashville'

The Music City Loop project is aimed at transporting people from Nashville International Airport to Lower Broadway in roughly 10 minutes. By Li ... More Information