Source: https://tendernation.io/opportunities/01a13cef-cb4c-7105-bd55-93a5468789dc/ekfb-green-tunnel-portal-buildings closed GB open procedure # EKFB - Green Tunnel Portal Buildings [Eiffage Kier JV HS2 Main Civils Works, Lots C2 & C3](https://tendernation.io/buyers/eiffage-kier-jv-hs2-main-civils-works-lots-c2-c3) Estimated value £20,000,000 to £30,000,000 Published 21 Feb 2024 Deadline Closed 28 Feb 2024 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender EKFB are delivering civil engineering works across an 80km section of the new high speed rail link between the Chiltern Tunnel and Long Itchington Wood. Our scope of the works includes 15 viaducts, 6.9km of green tunnels, 22km of road diversions, 81 bridges and around 30 million cubic metres of excavation. EKFB are seeking to appoint a sub-contractor undertake the construction of 4 green tunnel portal building as detailed below: The buildings are to accommodate the mechanical, electrical, and communication equipment for operation of the tunnel. There will be a total of four portal buildings which are expected to have identical specifications and dimensions. Each building will be 50m length and a 15m width. See general arrangement. The buildings are situated at each end of the tunnels, which are located at Chipping Warden & Greatworth. Ground works and concrete slab will be carried out by EKFB, so this package is for all works above concrete slab and include but not limited to: • Steelwork • Cladding & Roofing • Internal fit out - ie. blockwork, partitions, plastering, painting, fire stopping, joinery • Mechanical & Electrical works ie, natural ventilation system , general mechanical heat recovery ventilation system, temperature control ventilation system, mechanical cooling system, electrical heating system, building management system, automatic monitoring & control, fire detection & alarm, fire hydrant system ,uninterrupted power system, cable management system, gas suppression system, normal & emergency lighting, power supply system, distribution for lighting, small power, emergency lighting, mechanical cooling and heating system, distribution for communication and other essential services • Landscaping Work Read full description ## CPV classification Building construction work Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/b6a8b57e-7569-4a5c-a9aa-b89580fa1406) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Eiffage Kier JV HS2 Main Civils Works, Lots C2 & C3: past awards and live tenders](https://tendernation.io/buyers/eiffage-kier-jv-hs2-main-civils-works-lots-c2-c3) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Building construction work – Budowa budynku mieszkalnego wielorodzinnego wraz z infrastrukturą techniczną w miejscowości Szczucin · KZN SIM Tarnów Sp. z o.o. · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-d859-7328-9ee6-a304ce645326/poland-building-construction-work-budowa-budynku-mieszkalnego-wielorodzinneg) [Floor-covering work – Universität Leipzig, Leuschnerplatz, Global Hub, Forschungsneubau · Staatsbetrieb Sächsisches Immobilien- und Baumanagement, Zentrale, Zentralstelle Vergabe- und Vertragsmanagement · 3 days left · 22 Oct 2026](https://tendernation.io/opportunities/01a156a9-acfc-73ee-baab-9e699f88521a/germany-floor-covering-work-universitat-leipzig-leuschnerplatz-global-hub) [Demolition work – Rück- und Neubau Lichthochmaste · Hamburg Verkehrsanlagen GmbH · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6ef0-7276-94e2-d5fa0cb2d6c7/germany-demolition-work-ruck-und-neubau-lichthochmaste) [Plastering work – Modernisierung und Erweiterung Matthias-Claudius-Heim Würzburg · Diakonisches Werk Würzburg e.V. · 1 day left · 20 Oct 2026](https://tendernation.io/opportunities/01a156a9-e605-706f-8937-7f0ba18339c0/germany-plastering-work-modernisierung-und-erweiterung-matthias-claudius-hei) [Heating plant construction work – Petrašiūnų elektrinės elektrifikacija, įrengiant elektros energijos kaupimo įrenginius, dyzelinį generatorių ir rekonstruojant 6 kV skirstyklą (projektavimas ir rangos darbai) · Akcinė bendrovė „Kauno energija“ (PV) · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6f1d-727f-a077-bc25dec93b92/lithuania-heating-plant-construction-work-petrasiunu-elektrines-elektrifikac)