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Teddington Direct River Abstraction (TDRA) Tunnelling Main Works Contract (MWC)

THAMES WATER UTILITIES LIMITED

Buyer Contact Info

Buyer Name: THAMES WATER UTILITIES LIMITED

Buyer Address: Clearwater Court, Reading, UKJ11, RG1 8DB, United Kingdom

Contact Email: procurement.support.centre@thameswater.co.uk

Status
active
Procedure
selective
Value
242000000.0 GBP
Gross: 242000000 GBP
Published
28 May 2025, 16:58
Deadline
n/a
Contract Start
n/a
Contract End
n/a
Category
works
CPV
45000000 - Construction work
Region
n/a
Awarded To
n/a
Official Source
Open Find a Tender

Description

Design, build, test and commission of the following two main components: i) A recycled water conveyance tunnel from Mogden Sewage Treatment Works (STW) to Teddington. A new approximately 4.2km long tunnelled conveyance route approximately 3.5m internal diameter (ID) would be driven using a Tunnel Boring Machine (TBM) and constructed to connect a new Tertiary Treatment Plant (provided by others) in Mogden STW to the proposed outfall on the riverbank of the River Thames upstream of Teddington Weir. The tunnel would have four shafts. ii) River abstraction and transfer to the existing Thames Lee Tunnel (TLT): The river abstraction would be located approximately 175m upstream of the proposed new outfall. The abstracted river flow would be conveyed to the TLT through a smaller diameter (up to 2.2m ID) pipe installed using a pipe jacking technique. The scope will include, but not be limited to: Construction Design activities Architectural Building M&E Civils and Structural engineering including earthworks Enabling works Drainage Geotechnical Ground movement impact Mechanical, Electrical, Instrumentation, Control and Automation (MEICA) including a SCADA (Supervisory Control and Data Acquisition) system Hydraulic Modelling Materials durability Renewables / Carbon mitigation Rivers and Watercourses Traffic & Highways Shafts & Tunnels Utilities Disposal of excavated material The NEC4 Engineering and Construction Contract comprise two stages, with a decision point as to whether to proceed to construction between Stages One and Two. If the decision point is passed, then a Notice to Proceed (NTP) will be issued. Stage One, also known as the Early Contractor Involvement stage, will provide construction related support to the Client during its planning process, which comprises an application for a Development Consent Order (DCO). Using the DCO reference design (provided by others) as a constraint to the scope, the TDRA Tunnelling MWC will develop the design for construction, which will be integrated with construction planning, into the subsequent Stage Two, being the delivery / construction phase. The decision gate to proceed to Stage Two will be dependent on a number of matters, including: 1) An accepted design that meets the requirements of the contract; 2) agreement on a target price; and 3) the granting of the DCO. The agreement of a target price for Stage Two will be constrained by the Client's budget and will be developed in accordance with a Pricing Information Schedule appended to the contract. The Pricing Information Schedule will include an exhaustive list of specific "Adjustment Events" which may adjust the target price for Stage Two. Subject to the Client issuing a NTP, Stage Two will commence with an initial period to comply with any secondary consenting issues, followed by mobilisation to commence construction. Following construction, a testing and commissioning phase will be required with a scheduled target date of Water Available for Use (WAFU) of 31 March 2033.

Linked Documents

No linked documents found for this notice.

Opportunity Context

More Information Links

External Link: https://www.find-tender.service.gov.uk/Notice/028281-2025

Link Description: Tender notice on Find a Tender

Lots

Lot 1 Status: active

Lot 1 Value (Gross): GBP 242,000,000

Lot 1 Contract Start: 2026-10-02T00:00:00+01:00

Lot 1 Contract End: 2033-03-31T23:59:59+01:00

Lot 1 Award Criterion (price): Price (30%)

Lot 1 Award Criterion (quality): Quality (70%)

Documents

Document Description: Not published

Document Description: Tender notice on Find a Tender

Raw Notice JSON

Expand raw payload
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    "description": "Design, build, test and commission of the following two main components:\ni)\tA recycled water conveyance tunnel from Mogden Sewage Treatment Works (STW) to Teddington. A new approximately 4.2km long tunnelled conveyance route approximately 3.5m internal diameter (ID) would be driven using a Tunnel Boring Machine (TBM) and constructed to connect a new Tertiary Treatment Plant (provided by others) in Mogden STW to the proposed outfall on the riverbank of the River Thames upstream of Teddington Weir. The tunnel would have four shafts.\nii)\tRiver abstraction and transfer to the existing Thames Lee Tunnel (TLT): The river abstraction would be located approximately 175m upstream of the proposed new outfall. The abstracted river flow would be conveyed to the TLT through a smaller diameter (up to 2.2m ID) pipe installed using a pipe jacking technique.\nThe scope will include, but not be limited to:\nConstruction Design activities\nArchitectural\nBuilding M\u0026E \nCivils and Structural engineering including earthworks\nEnabling works\nDrainage \nGeotechnical \nGround movement impact\nMechanical, Electrical, Instrumentation, Control and Automation (MEICA) including a SCADA (Supervisory Control and Data Acquisition) system \nHydraulic Modelling \nMaterials durability\nRenewables / Carbon mitigation\nRivers and Watercourses \nTraffic \u0026 Highways \nShafts \u0026 Tunnels\nUtilities\nDisposal of excavated material\nThe NEC4 Engineering and Construction Contract comprise two stages, with a decision point as to whether to proceed to construction between Stages One and Two. If the decision point is passed, then a Notice to Proceed (NTP) will be issued.\nStage One, also known as the Early Contractor Involvement stage, will provide construction related support to the Client during its planning process, which comprises an application for a Development Consent Order (DCO). Using the DCO reference design (provided by others) as a constraint to the scope, the TDRA Tunnelling MWC will develop the design for construction, which will be integrated with construction planning, into the subsequent Stage Two, being the delivery / construction phase.\nThe decision gate to proceed to Stage Two will be dependent on  a number of matters, including: 1) An accepted design that meets the requirements of the contract; 2) agreement on a target price; and 3) the granting of the DCO. The agreement of a target price for Stage Two will be constrained by the Client\u0027s budget and will be developed in accordance with a Pricing Information Schedule appended to the contract. The Pricing Information Schedule will include an exhaustive list of specific \"Adjustment Events\" which may adjust the target price for Stage Two. \nSubject to the Client issuing a NTP, Stage Two will commence with an initial period to comply with any secondary consenting issues, followed by mobilisation to commence construction. Following construction, a testing and commissioning phase will be required with a scheduled target date of Water Available for Use (WAFU) of 31 March 2033.",
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      "features": "Requests to Participate Stage\nThis Tender Notice invites a request to participate from Applicants. Having reviewed the Tender Notice, all Applicants wishing to participate in the TDRA Tunnelling MWC competition will need to demonstrate in their submissions that they meet the Conditions of Participation set out in the Procurement Specific Questionnaire Pack (PSQ Pack) and complete a Non-Disclosure/Confidentiality Agreement.\nApplications will be submitted via the contracting authority\u0027s eSourcing portal as described in the PSQ Pack - Part 1 Instructions to Applicants.  The contracting authority will assess the Applicant\u0027s submissions in three stages. In stage 1, compliance and eligibility checks will be undertaken (on a pass/fail basis); in stage 2, there will be an assessment of financial capacity and technical ability to perform the contract (on a pass/fail basis); and for those submissions that pass stages 1 and 2 there will be a scored technical ability assessment that will include a pass/fail threshold and result in an overall score for each Applicant that will be used to determine which Applicants will be selected to participate in the next stage of the tendering process.  \nScored submissions will be ranked from highest to lowest and, subject to the procedure set out in the PSQ Pack (Part 1, paragraphs 4.6.22 and 4.6.23), the contracting authority intends to invite the Applicants of the top four (4) highest scoring submissions to tender for the TDRA Tunnelling MWC contract.  \nInvitation to Tender (ITT) Stage \nThe contracting authority will share with the shortlisted Applicants an Invitation to Tender (ITT) against which such Applicants will be invited to submit a tender.  Tender submissions will be evaluated in accordance with the objective criteria set out in the ITT. \nNegotiation Stage\nThe contracting authority may engage in negotiations with tenderers as set out further in the ITT. Records of any negotiations and agreements reached will be kept by the contracting authority. \nFor the avoidance of doubt, the contracting authority reserves the right to award the contract without any negotiation, on the basis of the most advantageous tender submitted at the ITT Stage.\nBest and Final Offer Stage\nFollowing any negotiation stage, the contracting authority also reserves the right to invite tenderers  to submit a best and final offer (BAFO), as explained further in the ITT.\nFollowing the submission of any BAFO\u0027s, the contracting authority will complete the tender evaluation process and award the TDRA Tunnelling MWC to the most advantageous tender in accordance with the objective criteria set out in the ITT."
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    "title": "Teddington Direct River Abstraction (TDRA) Tunnelling Main Works Contract (MWC)",
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