Longest HS2 green tunnel aims to avoid faults of the first

Grant Prior 2 years ago
Share

HS2 chiefs said “lessons learned” during the troubled construction of the project’s first green tunnel will be applied as work starts on a longer similar structure.

Faults were discovered in the giant precast segments used to construct the first tunnel in Chipping Warden, Northamptonshire

The same team of tunnel segment manufacturer Stanton Precast and  main contractor EKFB – Eiffage, Kier, Ferrovial Construction and BAM Nuttall – have now begun assembling the project’s longest tunnel around Greatworth in West Northamptonshire.

HS2 said: “Lessons learned during the construction of a similar green tunnel at Chipping Warden are being applied to the delivery of Greatworth.

“These include changes to quality control and the delivery and installation of the segments.”

Shorter green tunnels are also being built at Wendover in Buckinghamshire, Burton Green in Warwickshire and in the London Borough of Hillingdon.

The Greatworth cut-and-cover tunnel will be one-and-a-half miles long and made from more than 5,000 giant concrete segments.

HS2 Ltd’s Project Client Neil Winterburn, said: “Greatworth is one of five green tunnels between London and Birmingham designed to protect the natural environment and reduce disruption for local communities – and it’s great to see the first arches in position.”

EKFB’s Programme Director Emmanuel Rossignol, said: “The design and construction approach of this tunnel is unique to the UK, and there are many benefits associated with this methodology, including a reduction in our carbon footprint, but it’s not been without its challenges along the way.

“Our expert teams are to thank for their dedication as we continue to advance the construction programme across the Chipping Warden and Greatworth green tunnels.”

The tunnel will be built in sections, with construction of the main structure expected to take around two years.

Latest news

Breakthrough for HS2 as first Birmingham tunnel section dug

Balfour Beatty VINCI completes 3.5km TBM drive in 652 days drive
1 day ago

HS2 Curzon Street station redesign approved as timber roof axed

Change to meet stricter fire safety rules and cut maintenance costs
2 days ago

Care home fire trial collapses

Prosecution withdrawn against four firms including Morgan Sindall Property Services
2 days ago

Leicester rebids £22m station revamp after failed tender race

Council opts for ECI route after receiving one bid for project
2 days ago

Kier wins East Coast College rebuild job in Great Yarmouth

Work to start this summer for 1,300-student college
2 days ago

R G Carter wins £28m hospital car park job in King’s Lynn

MSCP paves way for £1.5bn Queen Elizabeth Hospital rebuild in 2027
2 days ago

London to relax green belt building rules

Sadiq Khan shifts position on planning
2 days ago

Willmott Dixon wins Great Yarmouth waterfront deal

North Quay 10.5 acres mixed-use scheme to advance
2 days ago

SIG chief quits to join Travis Perkins

Gavin Slark to leave by the end of this year
2 days ago

Eight take key spots on £250m Prosper framework

Housing and public building upkeep deal for North East awarded
2 days ago

Early call-out for £150m Ebbsfleet Garden City infrastructure

Bidders day to set out plan for Ebbsfleet Central commercial scheme
4 days ago

McLaren storms April contracts league with flurry of wins

Cardiff Bay Arena job headlines a series of big contract wins
3 days ago

Balfour Beatty lifts cash forecast after strong first quarter

Contractor set to hit £1bn average monthly net cash in 2025
3 days ago

Goldman Sachs-owned Adler & Allan buys 180-strong civils outfit

West Country's Glanville Environmental gets new owner
3 days ago

Caddick lands first contract for £200m Skelmersdale revamp

Developer gets green light for masterplan
3 days ago

Van Elle sells HGV fleet to haulage firm

WS Specialist Logistics pays £2.9m to take on fleet and drivers
3 days ago

Buyers more bullish about prospects for year ahead

Residential "resilient" but commercial work a weak spot
3 days ago

Council backs first Brutalist car park-to-flats scheme

Newcastle-under-Lyme multi-storey car park to be reborn as pioneering homes scheme
4 days ago

Hinkley Point C hits peak build with 26,000 jobs

3,000 more workers to join as fit-out work ramps up
4 days ago

Over 40 firms win Wessex Water M&E minor works deal

Broad sweep of specialists picked for AMP8 programme
4 days ago

Spencer lands Scottish bridge hat-trick

Steelwork, gantries and bearing upgrades on Kessock, Forth and Tay crossings
4 days ago

Winners revealed for £1.5bn decarbonisation deal

Fusion21 confirms places for 40 firms: Full list
4 days ago

Cladding firm fined £225,000 after fatal fall

Court hears how cherry picker didn't reach all parts of repair job
4 days ago

Completed buildings caught-up in Gateway 2 chaos

Developer distraught after dealing with Building Safety Regulator
5 days ago

Aviva submits plans for 34-storey City office tower

Subject to planning work to start in autumn 2027
5 days ago

Murphy takes 40% stake in Aussie civils contractor

Firm enters Australasian market with stake in Sydney-based contractor Abergeldie
5 days ago

Moat seeks firm for £420m repairs and maintenance deal

15-year deal to upkeep 20,000 south east homes
5 days ago

Lynch takes over hotel for Sizewell plant operators

Hire giant now in the hotel business to guarantee accommodation for workers
5 days ago

Subcontractors wanted across Scotland

Latest Constructionline event in Glasgow: Register now
5 days ago

Six guilty of £2m bribery over Devon housing site deals

Corrupt building bosses and E.ON project chief and QS sentenced
1 week ago

Contractor services