--- title: "P23 Tunnel Fire Main System Design - Costain HRS02 Tunnel and Lineside M&E" ocid: "ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792.json" source: "Contracts Finder" current_stage: "Tender" buyer: "COSTAIN GROUP PLC" published: "2025-10-20" --- # P23 Tunnel Fire Main System Design - Costain HRS02 Tunnel and Lineside M&E Buyer: COSTAIN GROUP PLC Current stage: Tender OCID: ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792.json) ## Summary The current tender process, initiated by Costain Group PLC, seeks expertise for the "P23 Tunnel Fire Main System Design" project, which is a part of the high-speed railway HS2 project connecting London to Birmingham. This procurement is classified under the industry category of fire-protection devices and services, and involves design work for a tunnel fire main system spanning approximately 111km within 14 dual bore tunnels. The project's scope includes full design validation and coordination, with emphasis on health and safety, cost efficiency, and innovative solutions. The procurement stage is currently active, with the tender period ending on the 5th of November 2025. The project will span various locations across the UK, specifically in the West Midlands, London, and the South East, and is expected to commence in mid-2027, concluding by October 2030. This tender offers significant business growth opportunities, particularly for firms adept in mechanical and electrical services, and those capable of providing innovative design solutions for large-scale infrastructure projects. Given its extensive scope and technical demands, it is particularly suited to SMEs with capabilities in fire-protection systems, safety installations, and related engineering services. Such businesses will benefit from engaging in a project that promises a value range from £250,000 to £500,000, with a focus on ensuring robust safety standards and efficiency across the full lifecycle of the system. Interested parties are encouraged to assess their capabilities and express their interest by the specified deadline to partake in this transformative infrastructure project. ## Notice Costain have been appointed to deliver contract HRS02, the Tunnel and Lineside Mechanical and Electrical services for HS2 ltd. A high-speed railway project that connects London to Birmingham with plans to extend in the future. The HS2 project has 14no dual bore tunnels each of which has a fire main through the length of each bore - totalling approximately 111km of fire main. The tunnel fire mains are connected to falling mains from the various shaft buildings (13no) at intermediate points within the tunnels, and to portal areas at the start/end of each tunnel. Package P23 Tunnel System Fire Main Design scope is for the full design of the tunnel fire main system, including validation and co-ordination of the design already completed by other (Main works civils contractors) who are fitting out the fire main in the shaft and portal areas. Costain require a specialist designer to take the client's performance brief for this system and produce the design to enable construction, testing, commissioning, assurance and handover. Costain and HS2 are looking for innovative and smart solutions that provide benefits in the following key areas. -Health and Safety -Programme - Installation and Commissioning activities -Cost -Quality and Assurance Efficiency -Whole Life Cost -Carbon Efficiency The design development and any innovations must be accompanied with a rigorous approach to ensure that the technical requirements are met. The scope of design will include (but not be limited to) the following: Calculations for pipework sizing and specification including computation fluid dynamics Analysis of stress, expansion, thrust considerations and incorporation into the design Design of bracketry supports, anchors and associate fixings within the tunnel Production of BIM model and drawings outlining the spatial layout and co-ordination of the fire main Co-ordination with other services design, including but not limited to tunnel civils, handrail and bracketry design Support to Costain's overall M&E design partner through concept and detailed design Full details of the scope and project brief/specifications will be provided to the successfully shortlisted suppliers at the next procurement stage. Suppliers should be aware of the scale of the HS2 project and are to assess their internal capabilities to be able to carry out the intended scope of works prior to completing the expression of interest. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/6ea095b0-f5bd-44b7-9723-471b6e26cea4 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 20 Oct 2025 | | Submission deadline | 5 Nov 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 29 Jun 2027 - 30 Oct 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £500,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | COSTAIN GROUP PLC | | Locality | LONDON | | Post town | Central London | | Postcode | EC3A 8BE | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI3 Inner London - West | | ITL 3 | TLI35 Westminster and City of London | | Local authority | City of London | | Electoral ward | Aldgate | | Westminster constituency | Cities of London and Westminster | | Delivery location | TLG West Midlands (England), TLI London, TLJ South East (England) | ## CPV Codes ### Divisions - 35 - Security, fire-fighting, police and defence equipment - 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus) - 75 - Administration, defence and social security services ### Codes - 35113300 - Safety installations - 44482000 - Fire-protection devices - 75251110 - Fire-prevention services ## Release History - 20 Oct 2025 at 11:50 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/6ea095b0-f5bd-44b7-9723-471b6e26cea4 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/6ea095b0-f5bd-44b7-9723-471b6e26cea4 20th October 2025 - Opportunity notice on Contracts Finder - https://www.competefor.com/business/viewOpportunityDetailsSupplier.html?id=101385121 Please follow this link to view the notice. ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. 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