Scour and Accretion Monitoring Services for the Thames Tideway Tunnel

Concepts

• bathymetric surveys
• surveying services
• river thames
• tideway reserves
• accretion monitoring
• tideway
• the thames tideway tunnel
• the tidal river thames
• accretion monitoring services
• bazalgette tunnel limited

Location

Services to be delivered in London in relation to the Thames Tideway Tunnel Project, across multiple project sites. Please refer to the PQP for additional information on site locations.

Description

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.

Total Quantity or Scope

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.

CPV Codes

• 71351923 - Bathymetric surveys services
• 34513550 - Survey vessels
• 38290000 - Surveying, hydrographic, oceanographic and hydrological instruments and appliances
• 38296000 - Surveying instruments
• 71353100 - Hydrographic surveying services
• 71355000 - Surveying services
• 79311300 - Survey analysis services

Indicators

• Bids should cover the whole contract.
• Renewals are not available.
• Performance considerations apply.
• Professional qualifications are sought.
• Award on basis of price and quality.

Other Information

1) Additional information concerning this Contract Notice and the Contracting Entity (Section I): economic operators should note that words and expressions in this Contract Notice with an initial capital letter shall have the meanings given in the PQP. All additional information relating to information provided in this Contract Notice is available in the PQP. Further information on (i) the procurement is available at https://tideway.bravosolution.co.uk and (ii) the Thames Tideway Tunnel project is available on www.tideway.london 2) To express interest in the Contract, Applicants must register and complete the PQQ on the Tideway portal: https://tideway.bravosolution.co.uk by the deadline for PQQs stated in the PQP. The PQQ Deadline is a precise time and Applicants must allow sufficient time to upload the PQQ. 3) Additional information concerning the Contracting Entity and the procedure (Section I and Section IV): On 24.8.2015 Ofwat granted Bazalgette Tunnel Limited a project licence (the "Project Licence") to carry out all activities described in the project specification notice apart from those activities that Thames Water is to carry out under the preparatory work notice. Bazalgette Tunnel Limited is not a utility for the purpose of the Utilities Contracts Regulations 2016 ('UCR 2016'). However Bazalgette Tunnel Limited is required pursuant to the procurement regime in the Water Industry (Specified Infrastructure Projects) (English Undertakers) Regulations 2013 ('SIP Regulations') to tender certain contracts and certain categories of contracts in accordance with a modified regime set out in the SIP Regulations ('modified UCR 2016'). More information concerning the Project Licence is available at: http://www.ofwat.gov.uk/regulated-companies/improving-regulation/thames-tideway/ Information on the SIP Regulations and more information on the modified UCR 2016 is available at: http://www.legislation.gov.uk/ 4) Tideway is commencing the procurement as the Contracting Entity. Any contract awarded pursuant to this Contract Notice may be initially let by Tideway and will include options to novate to Thames Water Utilities Limited and/or a group company, subsidiary, parent company or affiliate of Thames Water Utilities Limited and/or an appropriate and related replacement client. Novation will be considered at the appropriate time and at the discretion and subject to agreement of all parties involved. 7) Additional information concerning (II.2.5) (Award criteria): Tideway intends to award the Contract to the economic operator with the most economically advantageous tender. Details of the award criteria and methodology for identifying the most economically advantageous tender will be set out in the Procurement Documents. 8) A response to this Contract Notice does not guarantee that an Applicant will be invited to tender. The award process may be terminated or suspended at any time without cost or liability to Tideway. Tideway does not bind itself to enter into any contract(s) arising out of the procedure envisaged by this Contract Notice. No contractual rights, express or implied, arise out of this Contract Notice or the procedures envisaged by it. Tideway reserves the right to vary its requirements and the procedure relating to the conduct of the award process. Tideway reserves the right to disqualify any Applicants on terms set out in the PQP or ITT. 9) Applicants/Tenderers shall be solely responsible for and liable for all costs associated with and arising out of or in connection with responding to this Contract Notice, any PQQ and with submitting any tender, howsoever incurred.