Official UK procurement notice
Maintenance Dredging · UK public procurement notice
Authority: Harwich Haven Authority (Public body)
What is being bought
Published requirement descriptionDredging of clay / silt sediment from
- the harbour and the Port of Felixstowe deep berths
- the western end of the Harwich approach channel
- shallower berths at the Port of Felixstowe, Harwich Navyard, Trinity House and Harwich
(a) International Port,
- other areas as may be specified by the Service Manager,
using the Tiamat Dredging system and other dredging techniques.
Dredging of sand from the eastern end of the Harwich approach channel.
Disposal of dredged material at beneficial use sites around the coastline as directed by the Service Manager.
Early Contractor Involvement in the development of beneficial use schemes and capital projects.
The lotProcurement structure
single lot · no lot value publishedLot #1Awarded
Procedure terms & legal framework
From the official record- Procedure method
- Direct award
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Cancelled
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Utilities
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 13 Mar 2026, 15:47 GMT
- Last source update
- 18 Mar 2026, 16:02 GMT
- Authority reference
HHA/MD/2026- FTS notice number
2026/S 000-024788- Latest notice
- Procurement termination notice (UK12)
- Delivery area
- Official registry OCID
ocds-h6vhtk-066a3bFind a Tender
- Why no open competition
- Prototypes Development; Single Suppliers Technical Reasons
- Published justification
This award is not a direct award but rather will be an award of an exempt contract under Paragraph 6 of Schedule 2 of the Procurement Act 2023.
This award will grant a utilities contract to an affiliated entity falling within the definition of a group undertaking of Harwich Haven Authority under section 1161(5) of the Companies Act 2006. For at least three years following the contract award, at least 80% of the total turnover of the group undertaking deriving from the supply of goods, services and works will derive from works for the contracting entity. This calculation has been reached using credible business projections in accordance with regulation 42C of the Procurement Regulations 2024. Therefore, this award will qualify as an exempt contract.
This notice is issued voluntarily to promote transparency and inform stakeholders that the contracting entity intends to rely on the exempt contract provisions.
Harwich Haven Authority (the Authority) is one of the UK's leading trust ports.
A core activity of the Authority is maintenance dredging, enabling the world's largest container vessels-up to 17m draft-to call at our ports, a capability unmatched by any other UK container port.
To perform the maintenance dredging more efficiently and sustainably, whilst simultaneously reducing costs by 30%, the Authority has invested several million pounds in developing new innovative dredging technology that we call the Tiamat, which has over 140 patents granted around the world.
To fully commercialise and further develop the Tiamat, the Authority has decided to set up a majority-controlled LLP with Boskalis to undertake further investment in dredging innovation, research and perform the Authority's maintenance dredging requirements.
How it was run
Official notice- Submission deadline
- —
Timeline
18 Mar 2026 → 13 Apr 2026 · 2 dates- Notice published222 days ago18 Mar 2026, 16:02 GMT
- Standstill ends196 days ago13 Apr 2026, 23:59 BST
Notice history
4 events · 3 releases on Find a Tender · since 13 Mar 2026- Transparency notice published13 Mar 2026, 15:47 GMTUK5
- Contract award notice published13 Mar 2026, 16:03 GMTUK6
- Procurement termination notice published18 Mar 2026, 16:02 GMTUK12
- Contract signature expected17 Apr 2026, 23:59 BSTscheduled
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| SUFFOLK DREDGING LLP17 Apr 2026 – 17 Apr 2031 · up to 17 Apr 2033Extensions: Option for contracting entity to extend for one or two periods, each of 24 months, by serving notice to contractor. | £100,000,000 | 13 Mar 2026 | CancelledSmall correction to the description of the scope of the procurement. |
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- SUFFOLK DREDGING LLPAwarded supplier
Official documents & specifications (3)
Official links; attachments are not copiedNotices published for this procedure
- Procurement termination notice Procurement termination notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Transparency notice Transparency notice on Find a Tender