One worker remains in hospital after five employed at the High Speed 2 (HS2) Northolt site were injured during the construction of the Mandeville Road vent shaft.
Work at the vent shaft site has now been paused following the incident that occurred on Saturday, 26 August, at approximately 10:30am in west…
Latest Tunnels News
Thames Tideway ‘super sewer’ cost holds steady at £4.5bn
Tideway, the company building London’s new super sewer Thames Tideway, has released its latest annual report, confirming the capital cost of the project remains £4.5bn, as reported in April.
Tideway confirmed the figure in its financial results for the year ending March 2023, detailing a year in which almost all underground…
Tunnelling for second phase of Singapore’s £5.8bn water recycling project completed
Tunnelling has been completed for the second phase of Singapore’s S$10bn (£5.8bn) Deep Tunnel Sewerage System (DTSS) project, which will boost the country’s water recycling capacity.
DTSS was conceived in the 1990s, as Singapore’s national water agency Pub was investigating cost-efficient and land-efficient ways to reclaim and recycle water. Prior to…
Second bore completed for tunnel on Turkey’s Bahçe-Nurdaği Railway
Breakthrough of a tunnel boring machine (TBM) on a 9.6km rock tunnel on the Bahçe-Nurdaği Railway in Turkey marks completion of a key twin bored tunnel on the route.
The tunnel is the second bore driven by the 8m diameter Robbins single shield TBM through challenging geology by contractor İntekar Yapı…
£1.3bn of spending already committed to by National Highways for the Stonehenge Tunnel
Contracts worth £1.3bn have been signed by National Highways for the construction of the A303 Amesbury to Berwick Down scheme which has a total estimated capital cost figure of £1.7bn.
Known as the Stonehenge Tunnel, the project will see the construction of a new 12.8km dual carriageway to replace the existing…
Brenner Base Tunnel | ‘Highly complex’ Isarco River underpass section completed
A joint venture led by WeBuild has completed the Isarco River underpass section of the Brenner Base Tunnel, which required technical expertise to bore beneath the waterway.
The under-construction Brenner Base Tunnel is a new rail route being driven beneath the Brenner Pass on the Italian/Austrian border at a total project…
HS2 | Euston tunnel TBMs to be buried under Old Oak Common until government green light
Two tunnel boring machines (TBMs) to drive the 7.2km twin-bore High Speed 2 (HS2) tunnels between Old Oak Common and Euston will be put in place underground years before the government gives permission to proceed.
The development of HS2’s London terminus at Euston was put on pause in March when the government…
Largest TBM in Italy launched to bore 2km tunnel on new Bari to Naples line
WeBuild has launched the tunnel boring machine (TBM) Aurora for a 2km tunnel as part of the new Naples to Bari railway in Italy.
The TBM boring the Grottaminarda Tunnel has a 12m diameter cutter head and is 100m long, making it the largest currently in operation in Italy. It has…
Sydney Metro report highlights ‘significant technical and budget risks’
A government report has revealed Australia’s biggest infrastructure project, the Sydney Metro scheme, is currently facing “significant technical and budget risks”.
The Sydney Metro project involves three different schemes, Sydney Metro West, City and Southwest and Western Sydney Airport. Due to procurement issues with the Sydney Metro West scheme, the overall…
Tideway | 4.5km Greenwich connection tunnel completed
The Thames Tideway Tunnel has hit another milestone with the completion of the 4.5km Greenwich connection tunnel between Greenwich and Bermondsey.
This section of tunnel stretches from Greenwich Pumping Station to Chambers Wharf, where it connects with the main super sewer. It will tackle sewage overflow into the Deptford Creek and…