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ITA president to give keynote at BTS Conference
27 September, 2022
Newly-elected ITA president Arnold Dix will be a keynote speaker at the BTS Conference and Exhibition in London on October 11-12.
Keeping hold of the natural balance
24 June, 2022
Careful groundwater management was vital to build Copenhagen’s metro and, elsewhere, dewatering is taking on more tunnelling challenges. Report by Patrick Reynolds
London power project completes first drive
24 June, 2022
National Grid’s London Power Tunnels (LPT) project completed the first of five drives this week.
Lower Thames Crossing bidders start dialogue
27 April, 2022
National Highways has invited the three shortlisted bidders for the £2.3bn Lower Thames Crossing tunnelling contract to participate in “dialogue” on how to deliver the scheme.
Tunnel to restore snowdonian landscape
22 April, 2022
An area of outstanding natural beauty, Snowdonia is scarred by unsightly pylons and overhead high-voltage cables. They will now be removed and placed in a new tunnel that forms part of a visual improvement project. Julian Champkin reports
Necessity fosters innovation
17 March, 2022
Whether for large- or small-diameter tunnels, utility investment calls for more underground methods, ushering in several innovative techniques in the process. Patrick Reynolds reports
Lower Thames Crossing to be "greenest road ever built in the UK"
25 February, 2022
The Lower Thames Crossing has been designated a ‘pathfinder’ project to explore carbon neutral construction as part of National Highways’ efforts to make the new crossing the greenest road ever built in the UK.
Hochtief to build National Grid’s Snowdonia tunnel
08 February, 2022
Hochtief UK has been awarded a £207m (US$280m) power supply tunnel project by National Grid in Wales.
Tunnelling begins on London Power Tunnels Phase 2
06 July, 2021
Tunnelling has started on the second phase (LPT2) of National Grid’s £1bn (US$1.38bn) London Power Tunnels project as TBM Edith installs the first segment rings at the New Cross site, south of the River Thames.
Tunnel procurement row costs transport body £10m
01 June, 2021
Transport for London (TfL) has been ordered to pay £10m (US$14.2m) of taxpayers’ money as compensation to a consortium of contractors following allegations of a ‘botched’ procurement process for the proposed US$1.42bn Silvertown Tunnel in East London.
Three bidders shortlisted for Lower Thames Crossing
07 April, 2021
Highways England has named three construction/engineering companies which it has shortlisted to build the proposed Lower Thames Crossing – destined to be the longest road tunnel in Britain and hailed as the most ambitious UK roads project for a generation.
25 March, 2021
Utility grid projects bring a variety of tunnelling challenges. Report by Patrick Reynolds
Flatiron wins San Diego water project
28 January, 2021
US-based infrastructure provider Flatiron has been awarded a US$110m contract by the City of San Diego to work on the Morena Pump Station project which will involve significant microtunnelling.
Vienna metro expansion contract awarded
21 January, 2021
Wiener Linien, builder and operator of Vienna’s public transport system, has awarded a €242m (US$294m) contract to the joint venture comprising Hochtief, Swietelsky, and Habau Hoch und Tiefbau for the expansion of the city’s metro in the coming years.
Overbuild to create 'green' tunnel in Hamburg
06 January, 2021
German highway company Deges has awarded the joint venture comprising Implenia (35%) and Hochtief (65%) with a €580m (US$711m) contract to build the 2.2km-long Altona noise protection tunnel on the A7 motorway in Hamburg, Germany.
TBMs leaving site on the Sydney Metro project
25 February, 2020
Australia – The four 7m-diameter Herrenknecht double shields that excavated the tunnels for the City & Southwest phase of the Sydney Metro are being lifted out of construction sites and are leaving the city. Between them they have excavated 30km of twin metro tunnel and only the slurry TBM for the harbour crossing remains.
Sydney Metro finishes city centre tunnels
22 January, 2020
Australia – Four out of five drives for the Sydney Metro’s ‘City and Southwest’ phase have been completed. The most recent breakthrough was into Barangaroo Station. These drives represent the entirety of the city centre tunnels, with only a second tube crossing the harbour still to be completed. As of 21 January, some 97% of tunnel excavation had been completed.
City & Southwest
20 January, 2020
Alex Conacher visits the Sydney Metro’s second phase to speak with Terry Sleiman, project director for the contractor John Holland CPB Ghella, Hugh Lawson, project director for the client, and Kate Cole, occupational health and hygiene manager for Transport for NSW
National Grid awards LPT2 tunnels contract
19 December, 2019
Great Britain – National Grid has signed a GBP 400M contract with Hochtief-Murphy JV to deliver the tunnels and shafts for the London Power Tunnels (LPT2) project. The overall scheme will cost GBP 1bn (USD 1.3bn) and take six years to complete. This is the second phase of the LPT project.
27 September, 2019
A round-up of tunnel work in the Nordic Forum