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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

Sydney’s WestConnex motorway

Sydney’s WestConnex motorway

The WestConnex motorway is an EUR7.41 billion, 33 km continuous motorway which links Sydney’s west and south-west with the CBD (Central Business District), Sydney Airport and Port Botany ... More Information

Tunnelling/pipejacking engineers wanted

International recruitment specialist iPS is seeking engineers to fill a range of positions on a project commencing early next year in Melbourne, Australia. Click below for more, and visit ... More Information

Robbins webinars on record

Robbins webinars on record

Robbins have completed their very successful webinar series for 2014 and are making recordings available to tunnelbuilder readers until the end of the year. Click here for access and visit ... More Information

New Putzmeister scissor lift

New Putzmeister scissor lift

Putzmeister has announced Minelift 4 scissor lift platform with lifting height 4 m and 4 t load capacity for underground use. The machine is suited to both personnel and equipment lifting. Read the ... More Information

Six tunnels under Suez Canal

The EUR6.58 billion New Suez Canal Project features a new 72 km-length parallel branch of the 190 km-long Suez Canal from Deversoir to al-Balah which will cost EUR3.22 billion and six new tunnels to ... More Information

Intertunnel Russia

Intertunnel Russia

Intertunnel 2015, the 7th edition of the International Tunnelling Exhibition, will take place at the VDNKh in Moscow from 27 to 29 April, 2015. In a country as vast as Russia, tunnels are playing ... More Information

Opportunities at Fehmarnbelt tunnel

Another opportunity will occur for sub-contractors when Femern A/S offers two more major contracts in December, 2014. These concern the electrical and mechanical installations to be fitted inside ... More Information

Normet new generation

Normet new generation

Normet is introducing its latest generation of underground equipment at Bauma China in Shanghai. Apart from being endowed with improved overall ergonomics, the new machines are ready for Industrial ... More Information

Erbil to Haji Omaran

The Ministry of Housing and Reconstruction (MOHR) is building a dual carriageway connecting Erbil to Haji Omaran in Kurdistan, Iraq. The project comprises two main sections. The first 8.822 km ... More Information

Big auction in Caorso

Big auction in Caorso

Ritchie Bros’ upcoming auction in Caorso, Italy on 04.12.2014 currently features more than 1,400 heavy equipment items, tractors and trucks. All items will be sold to the highest bidders on ... More Information

Breakthrough in Paci tunnel

Breakthrough in Paci tunnel

On 06.11.2014, construction of the 1.7 km-long Paci tunnel was completed on the southbound carriageway of Italy’s A3 motorway, between Scilla and Campo Calabro. It is the longest tunnel among ... More Information

Managers sought by iPS

International recruitment specialist iPS is seeking qualified and experienced managers to fill the following tunnelling vacancies: 00542 Planning manager ... More Information

Montenegro highway financed

Montenegro highway financed

On 30.10.2014 the loan agreement was signed between Montenegro and the Chinese Exim Bank on financing construction of the first 41 km-long section Smokovac-Uvce-Matesevo of the 169.2 km-long ... More Information

Frejus tunnel holed

Frejus tunnel holed

On 17.11.2014 the TBM completed the 12,878 m emergency tunnel parallel to the existing Frejus tunnel (T4) and arrived at Bardonecchia, Italy, where it will be dismantled during the next three ... More Information

APAC conference

APAC tunnels and bridges conference will take place in Kuala Lumpur, Malaysia 15-16th April, 2015. Click for conference agenda. More from roohi.taragi@fleminggulf.com. 47/14. More Information

Ritchie Bros’ Caorso auction

Ritchie Bros’ Caorso auction

Ritchie Bros will hold an unreserved public auction of plant and equipment at their premises in Caorso, Italy on 04.12.2014, where some 900 plant items will be for sale. Click here and visit ... More Information

Guidance systems news from PPS

Guidance systems news from PPS

At Poltinger Precision Systems we strive every day to improve both ourselves, and our products. To suit our customers’ needs, and to implement their ideas for an even better PPS Guidance ... More Information

Val di Sambro holing

Val di Sambro holing

On 08.11.2014 breakthrough was achieved on the 3.9 km-long Val di Sambro tunnel on A1, between Firenze and Bologna. The contract was awarded to the JV Vianini Lavori/Toto/Profacta. Click it/21 ... More Information

Milan M4 metro update

On 11.11.2014 the final breakthrough in the first tunnel of Milan's M4 metro occurred at the Forlanini FS site. Excavations began last April, and to date 65 percent of the contract for the ... More Information

Meyco Versa launch

Atlas Copco has introduced its Meyco Versa mobile shotcreting unit suited to mid-size tunnels. Read the press release and contact michael.seitz@ch.atlascopco.com. 46/14 More Information

TBM turnaround at Waterview

TBM turnaround at Waterview

On 29.09.2014 the TBM Alice completed the southbound tube of the 2.4 km Waterview tunnels from Owairaka to Waterview. The tunnels will connect Auckland's Southwestern and Northwestern motorways. At ... More Information

Acimex segment handling at Riyadh metro

French manufacturer Acimex supplies vacuum devices for the handling of precast concrete segments in tunnels. Acimex vacuum erector and segment trolley will be used in the 10.16 m-diameter EPB ... More Information

Crossrail progress

Crossrail progress

On 20.10.2014 TBM Ellie finished her journey at Victoria Dock Portal in east London, completing the 900 m drive from Limmo Peninsula, near Canning Town, to Victoria Dock Portal in just six weeks, at ... 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