Source: https://tendernation.io/opportunities/01a13d16-b8f3-7049-8dd0-d6bca63071d3/ekfb-jv-precast-concrete-utx-under-track-crossing-chambers-system-and-adjoin closed GB open procedure # EKFB JV - Precast Concrete UTX (Under Track Crossing) chambers system and adjoining duct works [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 £250,000 to £500,000 Published 23 Jun 2026 Deadline Closed 30 Jun 2026 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender NC2A is the North Chilterns to Aylesbury section of C23, a part of the HS2 project managed by the EKFB Joint Venture. We are seeking a specialist subcontractor to undertake the following works within the NC2A section: The Subcontract Works include the provision of all management, labour, materials, plant and equipment, supervision, and other resources necessary and ancillary to safely and correctly complete the installation and handover of Precast Concrete UTX (Under Track Crossing) chamber system and adjoining ducts , as described in the specifications, drawings, HS2 standards Requirements and local authority specifications. The UTX system comprises segmented precast concrete chambers with precast concrete covers, seated on a precast concrete base. The precast chambers and covers shall be supplied and delivered to site by the Contractor for installation by the Subcontractor. Contractor will Undertake excavation works to the UTX duct formation level, subcontractor will complete excavation for installation of UTX Chambers and ducts. The Subcontract works include, but are not limited to: Dewatering of excavations as required. Provision of edge protection to ensure that excavation is safe for works ### Protection of all existing assets Setting out the UTX in accordance with the design and specifications, using primary control points provided by the Contractor. Transfer UTX Chambers from Laydown Area to point of installation Installation of the UTX system comprising segmented precast concrete chambers using methodology provided in detailed design Install all units onto the precast concrete base slabs provided by the Contractor. Install the full precast assembly, including the Precast concrete chamber segments and Precast concrete covers Install all components in accordance with the approved drawings, specified line and level, and manufacturer's instructions. Supply and install all associated ducting, ensuring compliance with project specifications and drawings. As part of installation, CBGM / Cast in situ concrete - minimum FND4 concrete around UTX and ducts to be done by Subcontractor Testing and handover Read full description ## CPV classification Concrete products Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/10bcec0d-425d-4f34-8f00-c2486ed03536) 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. 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