WJ News

Latest News and Updates from WJ Groundwater and across the Industry.

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Cross Cut Completion at Oakwood Station

The Eglinton Crosstown Light Rail Transit (ECLRT) project consists of 19.7 km of light rail transit running along Eglinton Avenue from Mount Dennis in the west to Kennedy in the east. The project is being designed and constructed by Crosslinx Transit Solutions (CTS).

With such an important and flagship infrastructure project, under constant public scrutiny, given the build disruption to local communities, the stakes were high. CTS needed a true water management partner who would work with them right through to the end.  And that’s where WJ came in.

WJ was called in from the UK to take a look at dewatering requirements of the Eglinton Crosstown Project – a challenging commission, which combines difficult dewatering conditions with innovative construction techniques. Several of the stations within the Eglinton project are being constructed using a unique soil mining technique, known as the New Austrian Tunnelling Method. This meant that our dewatering solutions had to be just as innovative in order to succeed.

Right from the start, the Oakwood main entrance access (called the cross-cut) was flagged as the most challenging aspect of the project. A silty, low-permeability soil matrix that fines towards the bottom of the excavation was located just above a clay interface. Using, wellpoints, ejectors, and deep wells, from the road surface and from confined spaces in TBM tunnels and mined caverns, WJ was able to complete this substantial dewatering feat, without any delay to the CTS mining schedule.

As everyone in mining knows: the mining can never stop!

WJ ensured it never did.

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WJ Group AdminCross Cut Completion at Oakwood Station
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Royal Hospital For Sick Children, Edinburgh

The Royal Hospital for Sick Children has been based on it’s existing site in the heart of Edinburgh since 1895, however in 2005 it was decided by the local NHS Trust that a more modern facility should be constructed adjacent to the existing Edinburgh Royal Infirmary at Little France on the south-east edge of the city.

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Dan CarpenterRoyal Hospital For Sick Children, Edinburgh
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Ipswich Tidal Barrier

This contract took us to the heart of Suffolk, to aid with the construction of a new Tidal Barrier Gate for the River Orwell, to reduce the risk and impact of flooding to the coastal town of Ipswich.

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Dan CarpenterIpswich Tidal Barrier
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Brighton I360

In 2000, when the London Eye opened to huge critical acclaim and quickly became the UK’s most visited paid-for visitor attraction, countless cities wanted an ‘Eye’ of their own but found that a similar wheel design would not be financially viable without a suitable site or sufficient guaranteed visitor numbers.

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WJ Group AdminBrighton I360
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Cambridge WWTW

As part of the renewal and upgrade of Cambridge’s WWTW works, WJ were called in to efficiently lower the groundwater level. A challenge which we more than rose to.

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WJ Group AdminCambridge WWTW