The first images of HS2’s Chesham Road ‘barn design’ rural headhouse, which will provide emergency access to the 10-mile-long Chiltern tunnel, has been unveiled.
This completes the set of five headhouse designs for the Chiltern tunnel.
Largely hidden behind a hedge and line of mature oak trees next to the B485, the Chesham Road headhouse is designed to fit into the surrounding landscape and takes its inspiration from the style of nearby barns and other agricultural buildings.
The single-storey building will be wrapped in a simple pre-weathered grey zinc roof which will age naturally over time, without loss of robustness or quality, while the whole structure will sit on a simple dark blue brick base.
Below ground level, a 45-metre shaft will reach down to the twin tunnels below to provide access for the emergency services. Because of its proximity to the north portal of the tunnel, unlike the other four shafts, Chesham Road won’t need to include ventilation equipment.
The plans were drawn up by HS2’s main works contractor Align JV – a team made up of Bouygues Travaux Publics, Sir Robert McAlpine and VolkerFitzpatrick, working with design partners Jacobs and Ingerop-Rendel, architect Grimshaw and landscape designer LDA.
“I'm delighted with the progress we’ve made so far at all five shaft sites. We are working to a detailed schedule to ensure that each shaft is ready for the arrival of our two tunnel boring machines (TBMs), currently tunnelling north from the south portal.
“As is the case with all the shafts, it is important that the headhouse design at Chesham Road fits into the surrounding landscape, therefore we look forward receiving comments on the design from the local community.”
Construction of the tunnel is now well underway. The two giant TBMs launched earlier this year to dig the parallel northbound and southbound tunnels have now passed under the M25 and are heading towards the first shaft site near Chalfont St Peter.
A team of engineers from Align have already excavated the shaft to a depth of 68m and are working to complete it before the arrival of the first TBM next year.
At the second shaft site, near Chalfont St Giles, the concrete diaphragm walls for the 46m deep shaft have been completed using specialised drilling equipment and material excavation will soon begin.
Work is also well underway at third shaft site, next to the A413 road junction outside Amersham, with engineers working on the concrete ‘D-walls’ for the 51m deep shaft.
Further north at the Little Missenden site, engineers are preparing for the start of wall construction, while at Chesham Road – the last shaft the TBMs will reach – site set up is now taking place.
Work on HS2’s Old Oak Common 850-metre-long station box has begun. The reinforced concrete structure will form the station's frame and base.
The Integrated Rail Plan published today, 18 November 2021, announces a huge slash in new railway lines being built in England.
HS2 has published a shortlist of bidders for the Phase 2a Design and Delivery Partner contract. The winner will be announced next summer.
In this month's column, Jonn Elledge muses on the future of HS2's eastern leg and the political tug of war taking place behind the scenes.
HS2 tunnel boring machine ‘Florence’ has passed the one mile mark, cutting through a mix of chalk and flint beneath the Chiltern hills.
HS2 has invited six bidders to tender for a major two-part enabling works contract for its recently approved Phase 2a section.
One year on from the start of phase one's construction, HS2 has announced that 20,000 people are now working on the high-speed rail project.
HS2 has confirmed the shortlist of bidders to build its control centre and rolling stock maintenance depot.
HS2 Ltd has published revised images of the Adelaide Road headhouse in Camden, after changes were made to the design.
The companies shortlisted to build HS2's Interchange Station in Solihull have been named by HS2 Ltd. The contract is to be awarded in 2022.
Leaders from across Yorkshire and the North East of England have contributed to a report demonstrating the importance of HS2's Eastern Leg.
SCS JV has signed the first of two contracts for the production of tunnel segments that will be used to construct HS2’s London tunnels.
In a UK first, on-site 3D reinforced concrete printing will be deployed by HS2's London tunnels contractor SCS JV.
Excavation of the vent shaft at Chalfont St Peter has begun in Buckinghamshire. It is the first of five on the HS2 Chiltern tunnels section.
HS2 designers are set to more than halve the amount of embedded carbon used in one of the high-speed rail project’s viaducts.
HS2 has begun its search for a team of specialist ground investigation contractors for the western leg of Phase 2b from Crewe to Manchester.
HS2 has launched Cecilia, the second of two 2,000t tunnelling machines that will excavate ten-mile-long tunnels beneath the Chiltern Hills.
Permanent works on HS2's Old Oak Common station have got under way today with phase 1 seeing the construction of a 750,000m3 underground box.
HS2 has obtained approval for a scheme that will use excavated material to create new chalk grassland, woodland, wood pasture and wetland.
HS2 begins search for a construction partner to build Interchange Station. This will be at the centre of the new high speed rail network.
HS2 Ltd has revealed a new vacuum excavation technique for piling which could have massive benefits for the wider construction industry.
HS2 has deployed the first of 10 tunnel boring machines (TBMs) that will be used during phase one of the UK’s new high speed railway.
HS2 has confirmed that a team made up of Mace and Dragados will build Birmingham’s new city centre high speed railway station.
HS2 has presented its design of the Oxford Canal Viaduct that will measure 62.5m and span the canal and towpath between Banbury and Daventry.
HS2 Ltd has published its shortlist of companies it has asked to tender for the high-speed railway's high-voltage power supply systems.
HS2 has cast the first of 112,000 wall segments for the high-speed railway's 10-mile Chiltern tunnel outside of London.
Work has begun on what will be the UK's longest rail viaduct – the Colne Valley Viaduct to the northwest of London, measuring 3.4km.
HS2 will use retired wind turbine blades originally destined for the incinerator to make reinforced concrete that is carbon-friendly.
HS2 Ltd has started its search for a specialist contractor to deliver the high-speed railway's engineering management system (EMS).
Following the formal handover of the Heathrow Express depot to Network Rail, NR will begin its decommissioning work in preparation for HS2.
Collins Earthworks has completed the preparation of the HS2 site in Warwickshire in readiness for tunnelling to start this summer.
HS2 Ltd has started its search for a contractor to build the rolling stock depot and control centre at Washwood Heath in Birmingham.
HS2 Ltd has revealed the design of the Euston tunnel headhouse that will sit alongside the West Coast Main Line in London.
HS2 Phase 2a, connecting the high-speed line from London to Crewe via Birmingham, has received royal assent in parliament.
HS2 has revealed its final design for the headhouse and vent shaft at Chalfont St Giles which will provide ventilation to the Chiltern tunnel.
Comments in the Commissioner's report stating the government is exploring cutting down platform numbers at HS2 Euston have sparked concern.
The first of five headhouses that will provide ventilation and emergency access to the HS2 Chiltern tunnel has gained planning approval.
The designs for the HS2 viaducts at Water Orton in Warwickshire have been unveiled following a public consultation in spring 2020.
HS2 has started its search for a switches and crossings supplier for Phase 1 and Phase 2a of the high-speed line between London and Crewe.
The National Infrastructure Commission has published its Rail Needs Assessment report, causing widespread dismay over possible cuts to HS2.
HS2 Ltd has revealed the first images of the north portal for the Long Itchington Wood tunnel site southeast of Birmingham.
HS2 and the West Midlands Combined Authority (WMCA) will work together on utility diversions in readiness of the metro eastside extension.
Network Rail has announced major works at Euston for the construction of the HS2 terminus and on the West Coast Main Line in 2021.
Midlands Voices report by the High Speed Rail Group says the eastern leg of HS2 up to Leeds is crucial for levelling up the country.
The tunnel boring machines that will excavate the HS2 Chiltern tunnel will be equipped with robotic arms to help with the concrete segments.
HS2 Ltd has published the updated designs for the Canterbury Works vent shaft headhouse, which will sit above the Euston tunnel in London.
HS2 Ltd has unveiled the design of two viaducts in Northamptonshire as a four-week consultation period for local residents gets underway.
The HS2 rail project has generated more than 400 apprenticeships to date, with a goal of creating 2,000 over the course of the project.
HS2 Ltd has signed a contract with contractor Skanka Costain STRAVAG JV for the first 2 tunnel boring machines to start on the HS2 project.
HS2 Ltd has launched a public consultation on proposed changes the Phase 2b of the high-speed rail project, including additional platforms.
HS2 Ltd has today (4 Sep 2020) announced the formal start of construction on the high-speed railway line, a major milestone for the project.
Solihull Council has awarded planning permission for the HS2 Interchange Station, the surrounding landscaping and the automated people mover.
HS2 Ltd has revealed the design for the vent shaft headhouse at Amersham, one of five such structures along the Chiltern tunnel.
HS2 Ltd has signed an agreement with UKRRIN to accelerate the development of innovative rail technologies and their time to market.
HS2 Ltd has launched part two of its Innovation Accelerator following a large number of applications in part one.
HS2 Ltd has revealed the first images and names of the two TBMs that will create the tunnel through the Chilterns: Florence and Cecilia.
HS2 Ltd has begun its search for the contractor to deliver the high-voltage power supply systems, traction and non-traction, for the line.
HS2's Old Oak Common site has been handed over to contractors Balfour Beatty VINCI SYSTRA, who won the contract to build the station in 2019.
HS2: the Chiltern Tunnel south portal site has now been fully levelled and the 17m headwall is now complete in preparation for the TBMs.
HS2 has revealed its final design for the first of four vent shaft headhouses for the Chiltern tunnel. This one is at Chalfont St Peter.
HS2 joint venture Mace Dragados has taken possession of the Euston Station construction site, preparing for the start of construction.
HS2 Ltd has started its search for overhead catenary system suppliers in preparation of awarding the £300m contract in 2022.
HS2 Ltd has launched a new hiring drive in anticipation of the start of major construction works on Phase 1 of the high-speed rail project.
HS2: The preparatory works at Euston station have reached a milestone with the demolition of the western ramp and canopy complete.
HS2 Ltd has revealed the construction companies that are shortlisted to tender for the Birmingham Curzon Street station build.
HS2 Ltd has launched its search for its operational telecoms supplier for Phase 1 and 2a of the high-speed line between London and Crewe.
HS2 has launched an Innovation Accelerator to help develop solutions in three areas: the environment, the circular economy, and productivity.
HS2 has revealed the first images of its south portal launch site from where two German-made TBMs will dig the Chiltern tunnels.
HS2 has received delivery of the first steel girders for the first bridges to be built on the project at the Birmingham Interchange site.
HS2 has adopted the CESAR ECV, an emissions identification scheme, to help keep emissions across its sites as low as possible.
2020 has its challenges to the rail sector with the coronavirus pandemic but there has been good news too: HS2 has its notice to proceed.
The DfT has extended the independent construction commissioner's brief to include HS2 Phase 2a. The role is held by Sir Mark Worthington.
Old Oak Common, one of the new stations being built for HS2, has received planning approval. The JV building it will begin in June 2020.
HS2 has formally launched search for signalling contractors. It will shortlist candidates in 2021 and issue contracts in 2022.
HS2 says it will pay its suppliers as soon as possible rather than within the contract terms and has asked Tier 1 contractors to do the same.
Curzon Street is the first of the HS2 stations to receive planning permission. It will form the Birmingham terminus of the high-speed line.
HS2 has officially launched its search for track systems suppliers for Phase 1 and 2a. There are 4 lots. Contracts will be awarded in 2022.
HS2 Interchange station near Solihull in the West Midlands is the first in the world to achieve the 'outstanding' classification by BREEAM.
The rail industry, associations, and unions have responded to the UK government's approval for HS2 Ltd to issue Notice to Proceed.
The UK government has given HS2 Ltd the approval to issue Notice to Proceed to the four main works civils contractors working on the project.
The UK PM gave the go-ahead for HS2 in parliament today. This decision has been welcomed by industry in general, including the rail sector.
The UK government will today give HS2 the go-ahead following a review into the high-speed rail project due to concerns about its cost.
HS2 has been heavily criticised by environmental organisations. Railway-News believes this is short-sighted and needs addressing.
Balfour Beatty VINCI SYSTRA joint venture wins construction management contract for HS2's Old Oak Common station worth 1 billion GBP.
The UK government has launched the Oakervee Review into HS2 to determine whether and how the high-speed line should proceed.
HS2 has received approval on their plans for Euston's 'sugar cube'. The structure will house a substation, electrical equipment and more.
HS2 will trial augmented reality training for its staff for Old Oak Common, which will serve both HS2 and the Elizabeth Line once built.
The Railway-News Industry Insider week 30: Deutsche Bahn resumes acceptance of ICE 4 trains, purchased 17 new double-decker trains and more.
On the 16 July 2019 HS2 revealed the designs for its new automated people mover (APM). The APM will link Birmingham interchange station...
Rail sector diversity: 3-year report on diversity in transport by the Strategic Transport Apprenticeship Taskforce finds strong progress.
The UK government has agreed to contribute 11 million GBP in funding towards the new Institute for High Speed Rail and System Integration.
The Railway-News Industry Insider week 25: Bombardier announces new car assembly site in California, HS2 gives a talk at Rail Live and more.
For International Women in Engineering Day 2019, we look at the Equality, Diversity and Inclusion (EDI) talk given by Mark Lomas from HS2.
The Railway-News Industry Insider week 23: Alstom, Bombardier/Hitachi and Siemens mobility release their proposed train designs for HS2.
Siemens Mobility joins Alstom and Bombardier-Hitachi in submitting a bid to design and manufacture the high-speed trains for HS2 in the UK.
Bombardier and Hitachi have unveiled the first image of their proposed HS2 train design. They will submit their bid to HS2 Ltd today.
Alstom has unveiled its design for the HS2 trains. HS2 is the new high-speed railway line for the UK. HS2 Ltd will award the contract in 2020.
The Railway-News Industry Insider week 48 (26–30 November): read all the important news from Stadler, Bombardier, Alstom, Siemens Mobility, Deutsche Bahn and ...
Hitachi and Bombardier have announced their plans to establish a Global High Speed Rail Learning Programme. The transport and engineering companies presented th...
Please fill in the contact form opposite. A member of the team will be in touch shortly.