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Notice Summary

Title:
UK-London: Thames Tideway Tunnel - C405 Main Works West - Acton Storm Tanks
Document Ref:
GB003ZM329349
Document Type:
Contract Notice - Other
Published By:
BMB Joint Venture (BAM Nuttall, Morgan Sindall PLC & Balfour Beatty)
Date Published:
27 April 2020
Deadline Date:
15 May 2020
Document Source:
Framework/DPS:
No
Alert Profile:
Labels:

Notice Abstract

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 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 Construction of a secondary lining to a 30m dropshaft, casting of the vortex drop tube, and internal walls at Acton Storm Tanks. The site is situated in Ealing, West London. These works are to run concurrently with other BMB areas of works including hydraulic structures works. Full welfare facilities will be provided to all subcontractors. The scope of works includes supply of concrete and provisions of which to carry out the secondary lining. This will require consideration for sequencing alongside the site wide programme. The slipforming operation will be given priority for logistics and laydown areas during this time. The subcontractor will have to take into consideration ducting (condensation drainage and ventilation ducting) that enters the shaft is required, including but not limited to waterproofing detail and casting in. The Subcontractor shall be responsible for design and supply of any temporary works slipform shutter required for construction of the secondary lining of the shaft, baffle walls and casting in the vortex drop tube structure.

Notice Details

CONTRACT NOTICE – NATIONAL

WORKS

1 Authority Details

1.1

Authority Name and Address

BMB Joint Venture (BAM Nuttall, Morgan Sindall PLC & Balfour Beatty)
N/A
London UK
N/A N/A
N/A

1.2

Address from which documentation may be obtained

As in 1.1

1.3

Completed documents must be returned to:

As in 1.1

2 Contract Details

2.1

Title

Thames Tideway Tunnel - C405 Main Works West - Acton Storm Tanks

2.2

Description of the goods or services required

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 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

Construction of a secondary lining to a 30m dropshaft, casting of the vortex drop tube, and internal walls at Acton Storm Tanks. The site is situated in Ealing, West London. These works are to run concurrently with other BMB areas of works including hydraulic structures works. Full welfare facilities will be provided to all subcontractors.

The scope of works includes supply of concrete and provisions of which to carry out the secondary lining. This will require consideration for sequencing alongside the site wide programme. The slipforming operation will be given priority for logistics and laydown areas during this time.

The subcontractor will have to take into consideration ducting (condensation drainage and ventilation ducting) that enters the shaft is required, including but not limited to waterproofing detail and casting in.

The Subcontractor shall be responsible for design and supply of any temporary works slipform shutter required for construction of the secondary lining of the shaft, baffle walls and casting in the vortex drop tube structure.

2.3

Notice Coding and Classification

2.4

Total quantity or scope of tender

Delivery point

West London sites as above

Estimated contract start date

28/05/2020

Estimated contract end date

30/09/2020

3 Conditions for Participation

3.1

Minimum standards and qualification required

4 Administrative Information

4.1

Type of Procedure

The procedure type is unknown.

4.2

Reference number attributed to the notice by the contracting authority

n/a

4.3

Time Limits

   15-05-2020  Time 12:00

4.5

Language or languages in which tenders or requests to participate can be drawn up

EN 

4.6

Tender Submission Postbox

5 Other Information

5.1

Additional Information

Please register as a supplier on the following portal to view this notice:

https://www.competefor.com

CompeteFor response deadline:15/05/2020 at 12:00 hrs

(MT Ref:329349)

5.2

Additional Documentation

5.3

Publication date of this notice

 27-04-2020

Current Notes