Published date: 17 October 2023

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Closing: 30 October 2023, 4pm

Contract summary

Industry

  • Installation works of walkways - 45213316

Location of contract

London

Value of contract

£1,000,000 to £2,500,000

Procurement reference

C4N74777520

Published date

17 October 2023

Closing date

30 October 2023

Closing time

4pm

Contract start date

3 March 2025

Contract end date

1 May 2028

Contract type

Works

Contract is suitable for SMEs?

No

Contract is suitable for VCSEs?

No

Description

The works are located at Northolt Tunnels West (NTW) Northolt Tunnels East (NTE) and Euston Tunnels (ET). At each location a twin-bore tunnel will be constructed, forming two parallel tunnels, each containing a single rail track. SCS JV will construct 13 miles of twin-bore tunnels on the HS2 route using six TBMs, of which five will operate simultaneously.

Approximately 42km of escape and maintenance walkway must be constructed throughout the length of the running tunnels. The emergency walkway shall run on the cross passage side and connect to it as well as to safe areas at portals, intervention points and shafts to provide a safe walking route. The maintenance walkway shall be installed on the opposite side to facilitate access for the inspection, maintenance and periodic component replacement operations necessary for train operation.

The preferred construction methods for the tunnel walkways shall be either horizontal slip-forming system (slip-forming paver) or a system using mechanised shutter-based slip formwork.

More information

Links

About the buyer

Contact name

Natalie Day

Address

Victoria House, Bloomsbury Square
London
WC1B 4DA
UK

Telephone

07387024999

Email

natalie.day@scsrailways.co.uk