Barhale were awarded this design and construct project by Network
Rail, to replace the railway bridge along Yews Lane in Helsby, Cheshire.
This occupation bridge provides the only access route to Hope Farm.
Having failed its capacity assessment, there was a need for it to be
replaced due to the weight limits imposed. This stopped vehicles in
excess of 6 tonnes accessing the farm, creating problems with feed
and livestock movements.
The scope of work comprised demolition of the existing bridge,
design, fabrication and installation of the new structure. Design was
undertaken by our sub-consultants, Crouch Waterfall and Partners,
whilst all other key elements were delivered in-house, including
fabrication of the new steel deck at our fabrication workshop in
Walsall.
Barhale were awarded this £6.4 million scheme by Severn Trent Water
to upgrade the sewerage system within Albrighton, Shropshire.
The village of Albrighton had experienced substantial flooding in
recent years, due to lack of capacity in the existing sewerage system,
coupled with the volume of surface water flowing into a local brook.
Barhale offered an innovative solution to the client through carrying
out micro-tunnelling to a curved profile. This was one of the first
micro tunnels in the UK to be cut on a curve through rock and
provided a £300,000 cost saving to the client, Severn Trent.
Barhale were contracted by Network Rail to undertake a construct
only package of two schemes in North London. The first scheme on
Roundtree Road involved the demolition of an existing footbridge, the fabrication and installation of a replacement steel structure, as well as the construction of associated foundations, footpath and
fencing.
The second scheme on Greenford Road consisted of the
refurbishment, grit blast and painting works to an existing footbridge,
as well as de-vegetation and brickwork repairs.
Crossrail is Europe’s largest railway and infrastructure construction project, under way mainly in central London to provide a new high-frequency commuter/suburban railway service.
Barhale undertook a technically challenging project in Holborn, in central London, working for BFK under the Crossrail project.
The scheme involved constructing a 30m deep shaft solely through the use of sprayed concrete lining (SCL) technique, due to its flexibility in use. The shaft will be used for access into the underground tunnels.
In Battersea, the Barhale team were able to draw upon their wealth of tunnelling experience, to develop innovative solutions to mitigate un-foreseen changes to the scope of works. Their proactive approach to potential problems saved the client time and money in delivering a very tight programme.
Following the excavation of the reception cofferdam; designed to enable retrieval of the tunnelling boring machine (TBM), it was established that the existing sewer was not in the location shown on the drawings. Also, the area surrounding the sewer was overlaid by a dense zone of utility services including an Extra High Voltage (EHV) trough and large diameter portable water mains; consequently it was no longer possible to retrieve the tunnel boring machine from the cofferdam.
This contract consisted of the construction of a new Rapid Gravity Filter structure and associated ancillary plant, to provide improved treatment of potable water supplies which suffer from high concentrations of Iron and Manganese. The existing plant was fed from two local boreholes but was restricted in output, due to the water quality issues. The new works will allow the plant to address both these issues.
Barhale were responsible for the overall design and construction of the works, taking the concept design from the client and developing the entire (MEICA) detailed design. Barhale’s in house design team were responsible for the overall design management, providing the design for the main civil structures, pipelines, duct arrangements, hard and soft landscaping and security upgrades.
As part of Southern Water’s £1.8 billion AMP 5 programme, Barhale undertook a £12m design and construct upgrade to Ashford Treatment Wastewater Works, enhancing capacity to allow for population growth in the area under our Barhale Trant Utilities (BTU) JV.
Through our corporate design and construction procedures, Barhale, working in collaboration with our design delivery partner URS and Southern Water, established a series of design workshops to ascertain the exact objectives and milestones the project would need to deliver. The challenges that all project stakeholders faced on the Ashford project was the limited as built design and assets information for the existing site.
Through their expert tunnelling experience and customer care, the Barhale team at Wyke Gardens, Ealing, were able to greatly reduce long standing flooding in to the River Brent, whilst maintaining traffic flows and customer relations in a densely populated area of west London. The Wyke Gardens storm water network in west London had a history of regular flooding and discharges into the River Brent. These discharges were polluted with foul water flows from 40-50 illegal or misconnections to the storm water network.
Barhale was selected by Thames Water to:
Construct a new CSO chamber and online storage tank to reduce the discharge events and provide a new static screen to remove the solids from any overflows.
The works were based in and around the busy A406 (North Circular Road), leading to and from the Hanger Lane Gyratory System – one of the busiest junctions in London, which incorporates 10,000 vehicles an hour.
The Green Lane (Great Western Road) Project on behalf of BFK/Crossrail involved the construction of 6 shafts (by underpinning method) and nearly 600m of pipe jacking.
The scheme was required as the existing sewer going under Network Rails Great Western Rail lines and London Underground would have clashed with the new Crossrail line. As a result, the existing sewer was abandoned and replaced with a new 1.2m pipe at a lower level. As part of the works, Barhale were responsible for the detailed design of the scheme involving consultation with Thames Water, Network Rail and London Underground. Initial works involved the location and diversion of all services at the shaft locations including Gas, Water, Electrical & Fibre Optics.
The Kingsway tunnel was built in 1906 and once carried trams between Aldwych and Holborn. It had been used by the London Borough of Camden for storage since its closure in 1952 but it has now been reopened by Barhale, sixty years later, to enable an essential grout shaft to be constructed.
This was an extremely interesting and challenging site location due to space constraints, media interest and the fact that the tunnel was a protected heritage structure.