Published date: 30 August 2022

This notice was replaced on 4 April 2023

This notice does not contain the most up-to-date information about this procurement. The most recent notice is:

Awarded contract (published 4 April 2023)

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Contract summary

Industry

  • Technical publications - 22121000

  • Environmental Impact Assessment (EIA) services for construction - 71313440

Location of contract

United Kingdom

Value of contract

£1,000 to £24,999

Procurement reference

23375

Published date

30 August 2022

Closing date

13 September 2022

Closing time

12pm

Contract start date

19 September 2022

Contract end date

28 February 2023

Contract type

Service contract

Procedure type

Open procedure (below threshold)

Any interested supplier may submit a tender in response to an opportunity notice.

This procedure can be used for procurements below the relevant contract value threshold.

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

Yes

Description

A recurring issue for cable installations within territorial and offshore waters is the exposure of cables post installation and the subsequent need for external cable protection (e.g. Race Bank, BritNed, IFA2, Nemo, London Array). Mobile sediment bedforms (such as sandwaves and megaripples), which actively migrate across the seabed, have the potential to expose cables. In turn, cable exposure could result in scour (or secondary scour) and the removal of seabed sediments. Uncertainty regarding cable burial success and maintaining cable burial status for the lifetime of a project, needs to be addressed. the aims of this project are:

1. Literature review of current information on seabed mobility projects and outcomes.

2. Collation of current data available from developers.

3. Analysis of available data to identify seabed changes over time, bedform migration rates and trends in erosion/accretion.

4. Correlation of data and instances of cable exposure to ascertain patterns in the seabed changes and occurrences of cable exposure.

5. Categorise the seabed geomorphodynamics and sediment types.

6. Classify sediment mobilisation to facilitate predictions of future sediment distribution.

7. Ascertain whether other marine users (i.e. fisheries, aggregates) influence the requirement of external protection.

8. Provide recommendations as to how the outcomes of this project could be furthered in future projects.

More information

Attachments

About the buyer

Contact name

Lucy Crooks

Address

Natural England
Ashford International House, Dover Place,
Ashford
TN23 1HU
England

Email

lucy.crooks@naturalengland.org.uk