SSA

Prior information notice

Information

Published

Expire date: 11/01/2023

External Reference: 2022-434263

Prior information notice

Prior information notice

Works

This notice is for prior information only

Section I: Contracting authority

I.1)

Name and addresses

Magnox Ltd
2264251
Oldbury Technical Centre
Thornbury
BS35 1RQ
UK
Contact person: Christine huckin
Telephone: +44 7712239393
E-mail: Christine.huckin@magnoxsites.com
NUTS code:  UKK25 -  Dorset
Internet address(es):
Main address: https://www.gov.uk/government/case-studies/shared-services-alliance-ssa-for-nuclear-decommissioning-estate

I.2)

Joint procurement

The contract is awarded by a central purchasing body
I.3)

Communication

The procurement documents are available for unrestricted and full direct access, free of charge, at:  
https://sharedsystems.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=15614&B=SELLAFIELD
Additional information can be obtained from
another address: 
Magnox Ltd
Magnox Ltd
Building A60, Winfrith
Newburgh
DT2 8WG
UK
Contact person: Neil Allsopp
Telephone: +44 7712234048
E-mail: Neil.allsopp@magnoxsites.com
NUTS code:  UKK25 -  Dorset
Internet address(es):
Main address: https://www.gov.uk/government/case-studies/shared-services-alliance-ssa-for-nuclear-decommissioning-estate

I.4)

Type of the contracting authority

Body governed by public law
I.5)

Main activity

Other activity:  Nuclear Decommissioning

Section II: Object

II.1)

Scope of the procurement

II.1.1)

Title

Preliminary Market Engagement - Winfrith Marine Pipeline Decommissioning
Reference number:  Preliminary Market Engagement
II.1.2)

Main CPV code

45244000  -  Marine construction works
II.1.3)

Type of contract

Works
II.1.4)

Short description

Magnox Limited is currently preparing to initiate a procurement process for the removal of the marine element of the Winfrith sea pipeline. Magnox wish to carry out pre-market engagement with interested suppliers to investigate the current market capabilities and gain knowledge about existing and future products and techniques which may assist informing Magnox in the development of the tender documentation.
The procurement is for the removal of the 3.7km marine and foreshore section Winfrith’s sea-discharge pipelines (SDP) and their associated components, the segmentation of the pipeline into 5.0m sections, the onshore storage of the pipeline sections, and the removal of concrete foreshore protection. The procurement shall also include the undertaking of an unexploded ordnance survey and ordnance removal where required.
II.1.6)

Information about lots

This contract is divided into lots: no
II.2)

Description

II.2.2)

Additional CPV code(s)

45244000  -  Marine construction works
50240000  -  Repair, maintenance and associated services related to marine and other equipment
71354500  -  Marine survey services
71355200  -  Ordnance surveying
98360000  -  Marine services
98391000  -  Decommissioning services
II.2.3)

Place of performance

NUTS code:  UKK25 -  Dorset
Main site or place of performance:  
Dorset
II.2.4)

Description of the procurement

Magnox Limited is currently preparing to initiate a procurement process for the removal of the marine element of the Winfrith sea pipeline. Magnox wish to carry out pre-market engagement with interested suppliers to investigate the current market capabilities and gain knowledge about existing and future products and techniques which may assist informing Magnox in the development of the tender documentation. This will ensure that the requirements are effectively met and delivered in a strategy that meets market capabilities and requirements. It also provides procurement awareness for suppliers regarding this requirements. Any information gathered through this market consultation exercise may inform internal business planning and any possible subsequent procurement process and will NOT be appraised in any future tender evaluation exercise. Should you wish to participate in this exercise please register your interest by contacting Neil Allsopp using the contact details listed in this notice.
The procurement is for the removal of the 3.7km marine and foreshore section Winfrith’s sea-discharge pipelines (SDP) and their associated components, the segmentation of the pipeline into 5.0m sections, the onshore storage of the pipeline sections, and the removal of concrete foreshore protection.
The twin pipelines are constructed from 15cm diameter Schedule 40 API 5L carbon-steel and comprise two ‘low-active’ pipelines (leading to diffusers approximately 120 m from the shore) and two ‘active’ pipelines (leading to diffusers approximately 3700m from the shore, some 30m below sea level). The outer surfaces of the SDP have bitumen-asbestos glass-fibre reinforced coatings and are encased in wire reinforced concrete (weight jackets).
The procurement shall also include:
• The undertaking of an unexploded ordnance survey and ordnance removal where required.
• Removal of the entire marine section of the SDP including diffusers, dead-weights, cathodic protection and the sea buoy.
• Controlled segmentation and ‘end-capping’ of the SDP into 5.0m sections.
• Onshore stockpiling of the SDP sections and other components.
• Removal of the concrete foreshore protection structure and foreshore reinstatement.
II.2.14)

Additional information

Whilst the pipelines are not engineered into the seabed, ‘grout-mattresses’ and ‘grout-pillows’ are present at several locations to provide additional protection to the pipelines. Concrete dead-weights are located on the seabed to constrain the diffuser sections of the SDP and to anchor the sea buoy.
II.3)

Estimated date of publication of contract notice:

13/03/2026

Section IV: Procedure

IV.1)

Description

IV.1.8)

Information about the Government Procurement Agreement (GPA)

The procurement is covered by the Government Procurement Agreement : yes
IV.2)

Administrative information

Section VI: Complementary information

VI.3)

Additional information

Magnox Limited is currently preparing to initiate a procurement process for the removal of the marine element of the Winfrith sea pipeline. Magnox wish to carry out pre-market engagement with interested suppliers to investigate the current market capabilities and gain knowledge about existing and future products and techniques which may assist informing Magnox in the development of the tender documentation. This will ensure that the requirements are effectively met and delivered in a strategy that meets market capabilities and requirements. It also provides procurement awareness for suppliers regarding this requirements. Any information gathered through this market consultation exercise may inform internal business planning and any possible subsequent procurement process and will NOT be appraised in any future tender evaluation exercise. Should you wish to participate in this exercise please register your interest by contacting Neil Allsopp using the contact details listed in this notice.
The date relating to the publication of the contract notice is tentative and may be subject to change