Latest Tunnels News

Tunnel sinkhole stalls work on Australia’s £3bn hydro project

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Australia’s largest renewables project Snowy Hydro 2.0 has hit another setback after a huge sinkhole opened up in one of its main drilling tunnels

Announced by former prime minister Malcolm Turnbull in 2017, Snowy Hydro 2.0 is an expansion of the Snowy Mountains Hydroelectric Scheme, which was commissioned in 1974. The project,…

Platform progress on Grand Paris Express’ deepest station

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Images released by Société du Grand Paris show the work being delivered by the Horizon consortium on the Vert de Maisons station, a key interchange on the new Line 15 south of the Grand Paris Express project.

Horizon, comprising Soletanche Bachy France, Bessac, Soletanche Bachy Tunnel and Bouygues Construction, is building…

Halfway stage achieved by both bores on HS2’s Chiltern Tunnel

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Both tunnel boring machines (TBMs) being used to drive the 16km long tunnels through the Chilterns for High Speed 2 (HS2) have just passed the halfway point on their journeys towards the north portals at South Heath in Buckinghamshire.

The Herrenknecht TBMs – named Florence and Cecilia – were the first…

Independence, strength and value of UK Infrastructure Bank questioned

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The independence, strength and value of the first deals made by the new UK Infrastructure Bank (UKIB) has been questioned in a report published today by the Public Accounts Committee.

The UKIB was launched in June 2021, providing £22bn of infrastructure finance and partnering with the private sector and local government…

Balfour Beatty wins £1.2bn Lower Thames Crossing contract

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Balfour Beatty has been awarded a £1.2bn contract by National Highways as part of its Lower Thames Crossing project to connect Kent and Essex.

The Roads North of the Thames contract includes 16km of new road, 49 structures including four green bridges and viaducts, and junctions with the A13 and M25,…

Thames Water awards London raw water tunnel refurbishment contract

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Thames Water has signed a contract worth £9M to refurbish raw water tunnels in north and west London with civil engineering firm Barhale.  

Barhale will inspect 35km of raw water tunnels removing debris, silt and invasive species, such as zebra mussels, which form substantial concentrations across the network. It is…

Dartford Crossing to close again for essential maintenance

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The Dartford Crossing will be closed again tomorrow night to allow engineers to conduct essential maintenance.

The Queen Elizabeth II bridge, A282 Dartford-Thurrock river crossing, will be closed overnight from 8pm tomorrow (14 Januray) until 10am on Sunday 15 January. The closures are for what National Highways is calling “further essential…