--- title: "Term Contract for Maintenance Dredging of the River Parrett: winter 2025/26 to 2029/30" ocid: "ocds-h6vhtk-054ff6" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-054ff6" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-054ff6.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-054ff6.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "SOMERSET DRAINAGE BOARDS CONSORTIUM" published: "2025-06-26" --- # Term Contract for Maintenance Dredging of the River Parrett: winter 2025/26 to 2029/30 Buyer: SOMERSET DRAINAGE BOARDS CONSORTIUM Current stage: Tender OCID: ocds-h6vhtk-054ff6 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-054ff6) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-054ff6.json) ## Summary The Somerset Drainage Boards Consortium has issued a tender for a multi-year term contract for maintenance dredging of the River Parrett and River Tone in Somerset, United Kingdom. This active tender, titled "Term Contract for Maintenance Dredging of the River Parrett: winter 2025/26 to 2029/30", is aimed at enhancing flood management through regular dredging activities. The procurement, conducted under an open competition method, is classified under construction work for water projects and dredging services, with a total estimated contract value of £3,480,000. Noteworthy deadlines include the tender submission date by noon on 1st August 2025, with clarifications ending on 11th July 2025. The project is to commence on 1st December 2025, with the contracting authority being the Somerset Drainage Boards Consortium, situated in Highbridge, UK. This tender offers a significant opportunity for businesses specialising in water management, specifically those with expertise in water injection dredging within tidal rivers, which is one of the selection criteria. Companies with previous experience and a keen understanding of the environmental and operational protocols for dredging are well-positioned to benefit from this tender. With tenders being evaluated on price and quality, enterprises that can offer innovative and efficient dredging methods, ensuring environmentally compliant operations, stand a good chance to contribute to the region's flood mitigation efforts and secure a long-term engagement with the Somerset Rivers Authority. ## Notice The Parrett Internal Drainage Board (PIDB) (a member of the Somerset Drainage Boards Consortium (SDBC)) is acting on behalf of Somerset Rivers Authority (SRA) to commission a five-year term contract for annual dredging works on tidal reaches of part of the Rivers Parrett and Tone in Somerset to retain the conveyance capability achieved as a result of pioneer dredging by the Environment Agency following extensive flooding in the catchment during winter 2013/14. An annual work schedule will be prepared for each year that funding is available on nominated reaches of the river(s) to be dredged. The 2025/26 schedule comprises a reach of approximately 4.8km of the River Parrett, downriver of Burrowbridge, Somerset, UK, as detailed in the example contract drawings included for tender quotation only (actual quantities will be assessed later this year for delivery winter 2025/26. Recent trend data indicates that this will involve dispersal of approximately 25,000m3 of silt. Works are to be conducted in accordance with a Public Sector Cooperation Agreement between SDBC and EA and the 'River Parrett Water Injection Maintenance Dredging - Environmentally Acceptable Protocol' that currently restricts working in the rivers to the period 01 December to 28 February, and to the use of water injection dredging methods within the main channel following a course along the river thalweg such that mobilised sediment deposits are dispersed on ebb tides i.e. not removed to land from the river and targeted mechanical removal of excess material from the upper banks using an excavator (our preferred method is for this to be a water mounted operation working in tandem with the WID). I am pleased to issue tender documents for the contract for your consideration. The conditions of contract will be the NEC Engineering and Construction Short Contract, Third Edition with additional Z clauses. Kindly notify your intention to tender in advance of any submission and within 1 week of this notice being published. Your completed tender submission (completed Contractor's Offer, priced activity schedule, method statement, equipment specification and proposed contract starting and completion dates) should be returned by noon on the date specified in the tender documentation. Tenders will be assessed on the basis of price (60%) and quality (40%) in line with the attached Tender Quality Assessment (TQA). The TQA requires an overall method statement and a detailed description of the proposed process and equipment specification, including anticipated productivity in m3/day/hr. These will be scored against the criteria indicated in the TQA. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/035312-2025 | | Notice type | UK4 - Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Open | | Procurement method details | Below threshold - open competition | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 26 Jun 2025 | | Submission deadline | 1 Aug 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 1 Dec 2025 - 31 Mar 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £3,480,000 | | Lots value | £3,480,000 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | SOMERSET DRAINAGE BOARDS CONSORTIUM | | Locality | HIGHBRIDGE | | Post town | Taunton | | Postcode | TA9 3BW | | Country | England | | ITL 1 | TLK South West (England) | | ITL 2 | TLK6 North Somerset, Somerset and Dorset | | ITL 3 | TLK62 Somerset | | Local authority | Somerset | | Electoral ward | Highbridge & Burnham South | | Westminster constituency | Bridgwater | | Delivery location | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England) | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45240000 - Construction work for water projects - 45252124 - Dredging and pumping works ## Release History - 26 Jun 2025 at 09:43 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/035312-2025 - 26 Jun 2025 at 09:27 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/035299-2025 - 19 Jun 2025 at 12:31 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/033710-2025 - 19 Jun 2025 at 12:26 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/033704-2025 - 19 Jun 2025 at 12:19 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/033697-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/035312-2025 26th June 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/035299-2025 26th June 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/033710-2025 19th June 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/033704-2025 19th June 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/033697-2025 19th June 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/Attachment/A-2348 Replace section 1.4 of Appendix C - PCI with corrected dates: 1.4 Programme details The current programme key milestone dates are given below. Issue Tenders 20th June 2025 Closing Date for tenders 1st August 2025 Appointment of Principal Contractor and Contract Award 8th August 2025 Time allowed for Principal Contractor to mobilise 3 weeks Start Date on Site Year 1 01 January 2026 Construction Phase Duration Year 1 (weeks) 4 Completion Date on Site Year 1 31st January 2026 ## Notice URLs - https://www.legislation.gov.uk/ukpga/2023/54/contents ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-054ff6. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-054ff6.json.