Trinity House: CM70 - Trinity House Hydrographic and Bathymetric-Topographic Surveys

Contracting authority

Contracting authority:

Trinity House

Public Procurement Organisation Number:

PXWM-8968-LPJY

Address:

TRINITY HOUSE
LONDON
EC3N 4DH
UK

Contact name:

Procurement

Email:

etender@trinityhouse.co.uk

Telephone:

+441255 245005

Website:

www.trinityhouse.co.uk

Organisation type:

MINISTRY

Devolved regulations that apply:

None

Procedure

Procedure type:

Open procedure

Preliminary market engagement conducted:

Not provided

Special regime:

None

Scope

Title:

CM70 - Trinity House Hydrographic and Bathymetric-Topographic Surveys

Reference number:

CM70

Main category:

SERVICES

Description:

Trinity House has a requirement to conduct a number of Hydrographic and Bathymetric/Topographic surveys at regular intervals. The purpose of the upcoming tender is to put in place a framework lasting a maximum of four years consisting of innovative survey companies to carry out surveys around the coasts of England and Wales.

Hydrographic surveys required: Hydrographic surveys to be completed within pre-set boundaries. A potential need for these boundaries to be expanded due to significant changes whilst surveying will also need to be taken into consideration. Trinity House will require the entire data set to be submitted as we share this with the United Kingdom Hydrographic Office. Ideally the survey data will be collected in Caris. Alongside the dataset, we require .csar .hob files and a detailed Report of Survey.
Survey Quality: TH currently collect data to IHO Order 2 as a minimum, however tenders should aim to achieve a better standard. Surveys should capture 100% bathymetric coverage and should be multibeam bathymetry to IHO Order 1a, with our shallow water surveys being surveyed to IHO Order 1b. The MCA have a useful link to help show what is involved in order to collect the data to those standards: UK Civil Hydrography Programme (CHP) - GOV.UK. The scope will also include the ad-hoc survey of new wrecks or dangers to navigation.

Bathymetric - Topographic surveys required: Trinity House holds the operation and maintenance responsibility for over 60 lighthouses around England, Wales, the Channel Islands and Gibraltar. These critical aids-to-navigation include several rock tower lighthouses that require regular modernisation and ongoing maintenance. To support this work, it is important to have accurate bathymetric and topographic surveys of the surrounding area(s). Topographic surveys are required to capture levels within the intertidal zone and areas that are inaccessible for bathymetric techniques.
Survey Quality: Acquired data must comply with the latest edition of the International Hydrographic Organization (IHO) s-44 special order, standard. This standard specifies total horizontal uncertainty (THU) horizontal accuracy of 2m and total vertical uncertainty (TVU) of 0.25 m plus 0.0075% of water depth. 100% coverage of the survey areas is required.
For more information about this opportunity, please visit the Delta eSourcing portal at:
https://trinityhouse.delta-esourcing.com/tenders/UK-UK-LONDON:-Surveying%2C-hydrographic%2C-oceanographic-and-hydrological-instruments-and-appliances./S8G6TAPN94

To respond to this opportunity, please click here:
https://trinityhouse.delta-esourcing.com/respond/S8G6TAPN94

Total value (estimated):

GBP 374,535 excluding VAT

GBP 449,442 including VAT

Contract dates (estimated):

01/02/2027 to 31/01/2029

CPV classifications:

38290000 - Surveying, hydrographic, oceanographic and hydrological instruments and appliances.

71351810 - Topographical services.

71351923 - Bathymetric surveys services.

Delivery regions:

UK - UNITED KINGDOM

Participation

Suitable for SMEs:

Yes

Suitable for VCSEs:

No

Engagement

Engagement deadline:

30/10/2026

Engagement status:

The engagement has not yet been carried out.

Engagement process description:

The intention of this notice is for interested parties to submit their details to Trinity House to be invited to the procurement process and further information which may become available. Please can interested suppliers therefore send their email addresses to etender@trinityhouse.co.uk to be added to a register of interested suppliers.

Submission

Other organisations