Published date: 23 March 2022
Last edited date: 24 June 2022
Closed early engagement
Contract summary
Industry
Marine construction works - 45244000
Repair, maintenance and associated services related to marine and other equipment - 50240000
Marine survey services - 71354500
Ordnance surveying - 71355200
Marine services - 98360000
Decommissioning services - 98391000
Location of contract
BS35 1RQ
Procurement reference
CTM RFT 15235
Published date
23 March 2022
Closing date
30 September 2022
Contract is suitable for SMEs?
No
Contract is suitable for VCSEs?
No
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.
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.
More information
Additional text
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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.
About the buyer
Contact name
Christine huckin
Address
Magnox Ltd
Oldbury Technical Centre
Thornbury
BS35 1RQ
England
Telephone
+44 7712239393
Christine.huckin@magnoxsites.com
Website
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Closing date: 30 September 2022
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