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Notice Summary

Title:
UK-London: Thames Tideway Tunnel - C405 Main Works West - Pipework Systems at Hammersmith Pumping Station
Document Ref:
GB003ZM344353
Document Type:
Contract Notice - Open Procedure
Published By:
BMB Joint Venture (BAM Nuttall, Morgan Sindall PLC & Balfour Beatty)
Date Published:
06 October 2020
Deadline Date:
26 October 2020
Document Source:
Framework/DPS:
No
Alert Profile:
Labels:
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Reviewed By
Our Specialist Team

Notice Abstract

Thames Tideway Tunnel - C405 Main Works West - Pipework Systems at Hammersmith Pumping Station 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. Scope of Works The Subcontractor shall design, supply & install mechanical equipment & systems as described in the documents appended to this enquiry. This will include: • Large and small bore pipework systems • Procurement and installation of valves • Dry Well ventilation system at HAMPS • Ventilation pipework • Installation of pumps Description of the subcontract works The Subcontractor will supply, install and pressure test the suction and delivery pipework from the Low Flow Pumping Station Wet Well to the existing pipework connection point in the existing Storm Pumping Station. The new low flow pumps will be free issued by BMB to site and the Subcontractor will install these into the Low Flow Pumping Station onto existing concrete plinths. The Subcontractor will include for but not limited to the supply of all support brackets, wall anchors, valves, flow meters, air release valves, drain pipework, threaded bosses for instrumentation, flange couplers, gaskets and bolts in accordance with the specification. The Low Flow Pumping Station pipework system route will be through the following areas, separate prices for supply and install will be required for each area. • Low Flow Pumping Station – Wet Well and Dry Well • Inlet Channel • Storm Pumping Station Pipework penetrations passing through walls will be pre-formed or drilled by BMB and grouted in afterwards by BMB. The puddle pipes and Link-seal type arrangements will be supplied by the Subcontractor. The Subcontractor must take into account preservation of the structural integrity of the assets into which he is fixing, including but not limited avoidance or protection of reinforcement steel etc. The Subcontractor is responsible for site measurement and verification before fabrication. The Subcontractor is responsible for all access scaffolding (including temporary works design). Due to limited site area the Subcontractor will need to specify the minimal laydown area required within their tender for BMB to consider (and size of site workshop if Subcontractor requires one). The Subcontractor’s tender should include a programme with lead times for supplying equipment & pipework (fabrication), installation and testing.

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 - Pipework Systems at Hammersmith Pumping Station

2.2

Description of the goods or services required

Thames Tideway Tunnel - C405 Main Works West - Pipework Systems at Hammersmith Pumping Station

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.

Scope of Works

The Subcontractor shall design, supply & install mechanical equipment & systems as described in the documents appended to this enquiry.

This will include:

• Large and small bore pipework systems

• Procurement and installation of valves

• Dry Well ventilation system at HAMPS

• Ventilation pipework

• Installation of pumps

Description of the subcontract works

The Subcontractor will supply, install and pressure test the suction and delivery pipework from the Low Flow Pumping Station Wet Well to the existing pipework connection point in the existing Storm Pumping Station. The new low flow pumps will be free issued by BMB to site and the Subcontractor will install these into the Low Flow Pumping Station onto existing concrete plinths. The Subcontractor will include for but not limited to the supply of all support brackets, wall anchors, valves, flow meters, air release valves, drain pipework, threaded bosses for instrumentation, flange couplers, gaskets and bolts in accordance with the specification.

The Low Flow Pumping Station pipework system route will be through the following areas, separate prices for supply and install will be required for each area.

• Low Flow Pumping Station – Wet Well and Dry Well

• Inlet Channel

• Storm Pumping Station

Pipework penetrations passing through walls will be pre-formed or drilled by BMB and grouted in afterwards by BMB. The puddle pipes and Link-seal type arrangements will be supplied by the Subcontractor.

The Subcontractor must take into account preservation of the structural integrity of the assets into which he is fixing, including but not limited avoidance or protection of reinforcement steel etc.

The Subcontractor is responsible for site measurement and verification before fabrication. The Subcontractor is responsible for all access scaffolding (including temporary works design). Due to limited site area the Subcontractor will need to specify the minimal laydown area required within their tender for BMB to consider (and size of site workshop if Subcontractor requires one). The Subcontractor’s tender should include a programme with lead times for supplying equipment & pipework (fabrication), installation and testing.

2.3

Notice Coding and Classification

2.4

Total quantity or scope of tender

Estimated contract start date 09/11/2020

Estimated contract end date 14/05/2021

Delivery point : West London sites as above

3 Conditions for Participation

3.1

Minimum standards and qualification required

4 Administrative Information

4.1

Type of Procedure

Single stage - Any candidate may submit a tender.

4.2

Reference number attributed to the notice by the contracting authority

n/a

4.3

Time Limits

   26-10-2020  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 participate :

https://www.competefor.com

Competefor Response Deadline : 26/10/2020 at 12:00 hrs

(MT Ref:344353)

5.2

Additional Documentation

5.3

Publication date of this notice

 06-10-2020

Current Notes