--- title: "Scour and Accretion Monitoring Services for the Thames Tideway Tunnel" ocid: "ocds-h6vhtk-047b7a" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-047b7a" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-047b7a.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-047b7a.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "BAZALGETTE TUNNEL LIMITED T/A TIDEWAY" published: "2024-07-08" --- # Scour and Accretion Monitoring Services for the Thames Tideway Tunnel Buyer: BAZALGETTE TUNNEL LIMITED T/A TIDEWAY Current stage: Tender OCID: ocds-h6vhtk-047b7a [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-047b7a) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-047b7a.json) ## Summary The public procurement contracting process involves a tender for the provision of "Scour and Accretion Monitoring Services for the Thames Tideway Tunnel" by Bazalgette Tunnel Limited t/a Tideway. The tender falls under the services category, focusing on bathymetric surveys services, with a contract value of £2,000,000. The process is currently in the planning stage, with a tender deadline set for 7th August 2024. Interested businesses can find further details on the project and procurement timeline in the Pre-Qualification Pack available on Tideway's e-sourcing portal. This opportunity to deliver monitoring services for a critical infrastructure project offers growth prospects for suppliers in surveying and environmental monitoring sectors. Businesses with expertise in survey vessels, hydrographic surveying, and analysis services are well-suited to compete. The contract allows for a period of six years, starting in June 2025, with the potential for further project extensions based on ongoing river analysis. Tideway's selective tendering process aims to award the contract to the most economically advantageous tender, as outlined in the procurement documents. ## Notice The Thames Tideway Tunnel (TTT) is a major infrastructure project, urgently needed to protect the tidal River Thames from increasing pollution. London's sewerage system is no longer fit for purpose and spills tens of millions of tonnes of untreated sewage mixed with rainwater (combined sewage) into the tidal reaches of the River Thames every year. Bazalgette Tunnel Limited (BTL), is the licensed provider set up to finance, build, maintain and operate the Thames Tideway Tunnel. From Licence Award BTL trades and is known to the public as 'Tideway'. Following completion of the main tunnelling works, it is necessary to undertake scour and accretion monitoring services (bathymetric surveys) of the foreshore to monitor for unexpected impact on scour and accretion within the River Thames. The purpose of the services is to establish the foreshore profile and natural variations of the foreshore following construction works in the foreshore when operation of the TTT commences. The surveys are to be of designated areas and repeated to determine variations between surveys. The TTT works in the foreshore have the potential to affect the river regime, causing variations in the riverbed levels greater that natural variations and may affect the natural habitat. Scour of the riverbed can be detrimental to the stability of third-party infrastructure such as river walls, jetties and bridge piers, whereas accretion of the riverbed may impact navigation and could affect drainage outfalls. It is anticipated that a supplier will be procured to deliver the services (across multiple project TTT sites / locations) pursuant to the award of a single contract. The contract is expected to commence in March 2025 allowing for a period of supplier mobilisation, with Services due to commence in June 2025 up to a period of six years. Please note this period is subject to change. The duration of the requirement will ultimately be determined by ongoing analysis of the River Thames and associated scour and accretion levels. Interested parties must register on Tideway's e-sourcing portal and will be able to download the Pre-Qualification Pack ('PQP') including the form of response to be completed and returned to submit a compliant response. The registration process is set out in section VI.3) of this Contract Notice. The PQP contains further detail regarding Tideway, the scope of services and further detail on the Contract and the timeline and phases of the procurement. Whilst it is intended that the procurement will be run in accordance with the timeline and process described in the PQP, this contract notice and the Procurement Documents, Tideway reserves the right to amend or cancel any or all of the procurement at any time and/or amend the timescales. ### Lot Information Lot 1 Interested organisations should refer to II.1.4) (Short Description) and VI.3) (Additional information) and to the PQP and other Procurement Documents for further information on the description of the Services and the Contract. A Supplier is to be appointed to provide the Services across a variety of TTT project sites commencing at the start of the System Acceptance period, currently planned for mid-2025, with services required up to a period of six years. Please note this is subject to change based on ongoing project requirements. Please refer to the PQP for information on the TTT programme and associated project milestones. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/020742-2024 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Negotiated procedure with prior call for competition | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 8 Jul 2024 | | Submission deadline | 7 Aug 2024 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £2,000,000 | | Lots value | £2,000,000 | | 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 | BAZALGETTE TUNNEL LIMITED T/A TIDEWAY | | Locality | LONDON | | Post town | South East London | | Postcode | SE1 0SU | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI4 Inner London - East | | ITL 3 | TLI44 Lewisham and Southwark | | Local authority | Southwark | | Electoral ward | Borough & Bankside | | Westminster constituency | Bermondsey and Old Southwark | | Delivery location | TLI London | ## CPV Codes ### Divisions - 34 - Transport equipment and auxiliary products to transportation - 38 - Laboratory, optical and precision equipments (excl. glasses) - 71 - Architectural, construction, engineering and inspection services - 79 - Business services: law, marketing, consulting, recruitment, printing and security ### Codes - 34513550 - Survey vessels - 38290000 - Surveying, hydrographic, oceanographic and hydrological instruments and appliances - 38296000 - Surveying instruments - 71351923 - Bathymetric surveys services - 71353100 - Hydrographic surveying services - 71355000 - Surveying services - 79311300 - Survey analysis services ## Release History - 8 Jul 2024 at 10:09 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/020742-2024 ## Notice URLs - http://www.Tideway.London - http://www.legislation.gov.uk/ - http://www.ofwat.gov.uk/regulated-companies/improving-regulation/thames-tideway/ - https://tideway.bravosolution.co.uk ## 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-047b7a. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-047b7a.json.