Teddington Direct River Abstraction (TDRA) Tunnelling Main Works Contract (MWC)
- Published
- 28 May 2025
- Place of performance
- UKI
- Procedure
- Restricted procedure
- Lots
- 1
- Documents
- 1
- Notice number
- 028281-2025
- Reference
- ocds-h6vhtk-05286c
- Official source
- Official source
CPV codes
- 45000000Construction work
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 Acq…
Official publications
- FTS · 028281-2025 · 28 May 2025
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