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    ContractsTunnel Control and Management System - Independent Design Checker
    Awarded contract

    Tunnel Control and Management System - Independent Design Checker

    Awarded
    £553.1k
    Published 17 Aug 2026

    National Highways requires an independent design checker to conduct Category 3 checking and approve design documents for the new Tunnel Control and Management System across three tunnels.

    🇬🇧United Kingdom· West MidlandsPublished 17 Aug 2026· TodayviaFind a Tender
    Awarded
    £553.1k
    Published 17 Aug 2026

    Decision brief

    4 fields
    • Contract value
      £553,145
      Pounds sterling
    • Closing date
      Rolling
      No closing date published
    • Sector
      Engineering
      Browse related listings
    • Location
      🇬🇧United Kingdom
      West Midlands

    Suppliers

    1 supplier
    • AA
      AtkinsRéalis UK Ltd
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published today.

    17 August 2026
    Awarded — no open tender advertised

    Brief

    National Highways is seeking an independent design checker to provide Category 3 checking services for the new Tunnel Control and Management System (TCMS) being deployed at Hindhead Tunnel. This role involves reviewing design and test documents to ensure compliance with CG300 technical approval standards and CD352 design requirements for road tunnels. The TCMS is in the final stages of implementation and requires design certification before completing the fault-free running period, trial period, and safety case. Additionally, National Highways requires Approval in Principle (AiP) assessments for Southwick and Roundhill Tunnels to support planned refurbishment schemes. The successful supplier will have expertise in tunnel systems design verification, standards compliance, and the ability to work with complex control and management systems. This is an opportunity to support critical national infrastructure safety and compliance.

    Track record

    17 awards · 13 winners
    Open field

    No single supplier dominates the field.

    In engineering, NATIONAL HIGHWAYS LIMITED has awarded 17 contracts to 13 suppliers.

    Who wins here
    1. Ramboll UK Limited2× · 12%
    2. MACE LIMITED2× · 12%
    3. TETRA TECH LIMITED2× · 12%
    4. STRUCTURAL SOILS LIMITED2× · 12%
    5. Samaritans1× · 6%
    6. ARCADIS UK LTD1× · 6%

    +7 more suppliers

    Across engineering, the most active winners are AECOM LTD, WSP UK LIMITED, OVE ARUP PARTNERS LIMITED — the field to beat, or your route in as a partner.

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    Take action
    View on sourceFind a Tender

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06e5c8
    NH
    Buyer
    NATIONAL HIGHWAYS LIMITED
    Sector
    Engineering