Thames Tideway Tunnel - C405 Main Works West - Architectural Soft Landscaping

The Thames Tideway Tunnel project (the Project) will control CSO discharges by intercepting and diverting combined sewage flows into a new storage and transfer tunnel. The main tunnel will run from Acton Storm Tanks in west London to Abbey Mills Pumping Station in the east, where it will connect to the Lee Tunnel, which will transfer the combined sewage to Beckton Sewage Treatment Works for treatment. The Project extends from Acton Storm Tanks in west London, to Abbey Mills Pumping Station in east London. The Project includes associated works at Beckton STW, Shad Thames Pumping Station and Bekesbourne Street.

The geographic layout of the Project and local authorities through which it passes is shown in Figure 1.

The Project comprises:

a. tunnels:

i. a main tunnel which will capture and store combined sewage from CSOs along its route and transfer it to Abbey Mills Pumping Station, from where the Lee Tunnel will transfer it for treatment at Beckton Sewage Treatment Works ii. 11 connection tunnels, which will link flows from CSOs to the main tunnel.

b. Worksites:

i. five main tunnel Worksites (drive and/or reception sites) ii. 16 CSO Worksites iii. two System modification Worksites Thames Tideway Tunnel iv. works at Beckton Sewage Treatment works.

Section 4: Scope of Works

The Subcontract works include but are not limited to:

ACTST: Scope of works include the supply and installation of:

• Swale Features

• Edging + Granite kerbs

• Wildflower meadow

• Reinstate Grass area

• Shrub planting

• Trees + tree pits

BAREL: Scope of works include the supply and installation of:

• Wildflower Meadow Planting

• Gravel maintenance strip

• Grass seeding

• Wet tolerant grass

CARRR: Scope of works include the supply and installation of:

• Trees + Tree Pits

• SUDS area with planting

• Root barriers

• Structural soft cells

• Bio Retention area

• (Tree root management system)

• Bird boxes

DRMST: Scope of works include the supply and installation of:

• Intertidal terrace planting

• Reinstated planting to Causeway Island

• Trees and tree pit

• Gravel margins

• Planting

Site Specifics:

• See marked up drawing of DRMST Areas - showing sequencing

KNGGP: Scope of works include the supply and installation of:

• Power and water supply

• Signage and Wayfinding

• King Georges Park granite signage kerb

• Litter bins

• Soft landscaping to park entrance

• Woodland planting

• Root barriers to trees

Site Specifics:

• See marked up drawing of KNGGP Areas - Areas 1 + 2 only for this package.
• CSO requires weight loading exclusion zone - no machine loading
• Paving + Asphalt by others
• Area handed over to landscape contractor from below subsoil formation level.

PUTEF: Scope of works include the supply and installation of:

• Grass seeding and subsoil build up to Watermans Green

• Reinforced turf and subsoil build up

The Subcontractor is to allow for:

• Surface finish infill to all access covers
• Foundations and haunching to all feature installations named within scope above - kerbs, drains etc..
• Coordination with hydraulic cover installer to ensure cover setting out. Contractor should allow a visit per worksite for s/o of hydraulic.
• Allow to work around and coordinate installation with in ground luminaires, conduits and ducts, and metalwork (handrails)
• Movement details against all structures, and architectural installations (Kiosks/ beches/ Ventilation columns)
• Coordination with soft landscaper for termination/ interface details
• All lifting/ craneage associated with the delivery installation of the Subcontract works.
• Works adjacent to water for the intertidal terrace at DRMST
• Delivery and unloading of all materials and equipment
• Temporary works designs associated with the works. This includes the provision of any CAT 1, 2, or 3 which may be required to satisfy any Subcontractor temporary works designs.
• Samples and mockups for approval in accordance with the Specifications and Works Information documents.
• All documentation issued in time for approval to include (but not limited to):

o Method Statements + Risk Assessments (RAMS) o Factory + Installation Inspection and Test Plans (ITPS) o Material Compliance Records (MCRS) o Lifting Plans o Designer Competency form o ISO 9001 o Designers CV o Designers Matrix o Organisational Chart

The Subcontractor shall comply with the requirements set out in the Works Information and BMB procedures.

Returned quotations will be evaluated by BMB JV's (BAM Nuttall, Morgan Sindall PLC & Balfour Beatty) Procurement team in conjunction with our design and engineering teams.

Quotations will be evaluated based on;

Cost

Timeliness of return

Adherence to and demonstration of understanding of the drawings and specifications provided at this point.

Provision of accurate product specifications to accompany the quotation.

Supplier experience of similar projects,evidence of this will be requested should the initial quotation be of interest.

Should the candidate supplier be shortlisted they will then be contacted directly by a member of the BMB Procurement Team within two weeks of shortlisting to discuss the requirement in detail.

BMB Joint Venture (BAM Nuttall, Morgan Sindall PLC & Balfour Beatty)

BMB JV Sites

(ACTST) BMB-JV Tideway West, Acton Storm Tanks, Canham Road, W3 7SR

(BAREL) BMB-JV Tideway West, Barn Elms, Queen Elizabeth Walk, Richmond upon Thames, SW13 0DG

(CARRR) BMB-JV Tideway West, Carnwath Road Riverside, Carnwath Road, London Borough of Hammersmith & Fulham, SW6 3HR

(DRMST) BMB-JV Tideway West, Dormay Street, Wandsworth, SW18 1EY

(KNGGP) BMB-JV Tideway West, King George's Park, Neville Gill Close, Wandsworth , SW18 4BS

(PUTEF) BMB-JV Tideway West, Putney Pier, Lower Embankment Road, London, SW15 1EJ

Additional information: BMB JV Sites

(ACTST) BMB-JV Tideway West, Acton Storm Tanks, Canham Road, W3 7SR

(BAREL) BMB-JV Tideway West, Barn Elms, Queen Elizabeth Walk, Richmond upon Thames, SW13 0DG

(CARRR) BMB-JV Tideway West, Carnwath Road Riverside, Carnwath Road, London Borough of Hammersmith & Fulham, SW6 3HR

(DRMST) BMB-JV Tideway West, Dormay Street, Wandsworth, SW18 1EY

(KNGGP) BMB-JV Tideway West, King George's Park, Neville Gill Close, Wandsworth , SW18 4BS

(PUTEF) BMB-JV Tideway West, Putney Pier, Lower Embankment Road, London, SW15 1EJ

Tender Documents

• Opportunity notice on Contracts Finder → — Tender notice
• Please follow this link to view the notice. → — Tender notice