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    ContractsBathymetry and Topographic Surveys for Bishop Rock and Longships Lighthouses
    Closed contract

    Bathymetry and Topographic Surveys for Bishop Rock and Longships Lighthouses

    Contract value
    £47k
    Closed 15 Oct 2026

    Trinity House seeks bathymetric and topographic surveys of Bishop Rock and Longships Lighthouses to evaluate alternative vessel-based access methods for lighthouse maintenance operations.

    🇬🇧United Kingdom· LondonPublished 25 Aug 2026· 2 months agoviaFind a Tender
    Contract value
    £47k
    Closed 15 Oct 2026
    Tender deadline passed on 15 Oct 2026.

    Decision brief

    4 fields
    • Contract value
      est.£47,000
      Pounds sterling
    • Tender closed
      15 Oct 2026
      1 week ago
    • Sector
      Engineering
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Lifecycle

    Closed

    Tender closed on 15 Oct 2026. Awaiting award.

    25 Aug 2026Today15 Oct 2026

    Brief

    Trinity House operates and maintains over 60 lighthouses across England, Wales, the Channel Islands, and Gibraltar. Several remote rock tower lighthouses require regular modernization and maintenance. To reduce costly helicopter mobilizations for personnel, equipment, and tools, Trinity House is investigating the use of jack-up vessels and floating assets for access. This opportunity seeks accurate bathymetric (seabed depth and features) and topographic (surface terrain) surveys of the areas surrounding Bishop Rock and Longships Lighthouses. Survey data will inform the feasibility of alternative vessel-based access methods to improve operational efficiency and reduce costs. Qualified suppliers should have experience in marine surveying, hydrographic data collection, and working in challenging offshore environments.

    Track record

    2 awards · 1 winner
    Thin record

    Only 2 prior awards here — too little to read.

    In engineering, TRINITY HOUSE has awarded 2 contracts to 1 supplier.

    Who wins here
    1. CASTLE SURVEYS LIMITED2× · 100%

    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

    Original closed notice on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06ebc4

    Track

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    TH
    Buyer
    TRINITY HOUSE
    Sector
    Engineering