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    ContractsHydrographic and Bathymetric-Topographic Survey Framework for Trinity House
    Open tender

    Hydrographic and Bathymetric-Topographic Survey Framework for Trinity House

    Contract value
    £374.5k
    Published 25 Aug 2026

    Trinity House is seeking experienced survey companies to provide hydrographic and bathymetric-topographic surveys across UK coastal regions and lighthouse locations under a four-year framework agreement.

    🇬🇧United Kingdom· LondonPublished 25 Aug 2026· TodayviaFind a Tender
    Contract value
    £374.5k
    Published 25 Aug 2026

    Decision brief

    4 fields
    • Contract value
      £374,535indicative
      Pounds sterling
    • Closing date
      Rolling
      No closing date published
    • Sector
      Research & Innovation
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Lifecycle

    Open

    Open tender — no closing date published. Opened today.

    25 August 2026
    Open tender · no closing date published

    Brief

    Trinity House seeks innovative survey companies to establish a four-year framework for conducting regular hydrographic and bathymetric-topographic surveys around the coasts of England, Wales, the Channel Islands, and Gibraltar. Hydrographic surveys must achieve IHO Order 1a/1b standards with 100% bathymetric coverage using multibeam bathymetry, with data delivered in Caris format including .csar and .hob files plus detailed Reports of Survey. Bathymetric-topographic surveys are required to support the operation and maintenance of over 60 lighthouses and critical aids-to-navigation, capturing accurate levels in intertidal zones and inaccessible areas to IHO S-44 special order standards (2m horizontal accuracy, 0.25m vertical uncertainty plus 0.0075% of water depth). The scope includes ad-hoc surveys of new wrecks and navigation hazards. All data will be shared with the United Kingdom Hydrographic Office. Suppliers should demonstrate innovation and capability to exceed minimum standards while delivering 100% coverage across designated survey areas.

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    Take action
    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06eb9b
    TH
    Buyer
    TRINITY HOUSE
    Sector
    Research & Innovation