High Speed 2 (HS2) client HS2 Ltd has invited contractors to bid for £3bn worth of work on the two biggest stations in phase 1.
The winning bidders will manage the works programmes for Euston Station and Old Oak Common, the two stations in London. They will also procure, integrate and manage the supply chains.
Contractors can bid for one or both of the station packages, with four to five shortlisted for each.
The lots have been valued to reflect the complexity of the work. The contract for Euston station is worth £1.65bn while the Old Oak Common contract is valued at £1.3bn.
Construction of both stations is due to start in September 2018. Work at Euston is programmed to run until the end of September 2033 while Old Oak Common station is due for completion in September 2027.
HS2 Ltd said it expected around 4,000 jobs would be created during construction of the two stations, which are expected to employ around 700 during operation.
Shortlisted consultants for all four stations – Euston Station, Old Oak Common, Birmingham Interchange and Birmingham Curzon Street – were revealed by New Civil Engineer in July. Successful contractors for both stations will be required to novate the winning consultants to their teams, after which these consultants will take a lead design assurance guardian role.
Euston Station scope
The Euston development involves building 11 new platforms in two phases, almost tripling the station’s capacity.
The Euston prequalification questionnaire includes a basic and an optional scope. The optional scope includes an allowance for a future over-site development “where it is expedient and economic to do so”. But the decision about whether to include this in the package will be delayed until at least Autumn 2017.
The basic scope includes stages A and B1. As revealed in New Civil Engineer, stage A will be delivered as part of phase one on new land west of the current station footprint. Six new HS2 platforms are expected to be operational by 2026. Stage B1 will be delivered under HS2 phase 2. It involves building five more platforms between the western site and the existing Network Rail station. This stage is expected to be operational by 2033, when the line starts serving stations beyond Birmingham.
HS2 Ltd said as the B1 work is not programmed to start until 2026, it has been split into a separate phase.
Old Oak Common scope
At Old Oak Common, the station will create a massive new transport hub, connecting with Crossrail, Transport for London (TfL) and Great Western Mainline (GWML) services.
As with Euston Station, the Old Oak Common scope includes an optional phase. This includes work to integrate the new high speed line with new and existing TfL infrastructure and the GWML. Inclusion of these works is not expected to be confirmed until September this year.
Optional work for Old Oak Common contract includes:
- Enabling works and permanent works for TfL eastern highway bridge works
- Enabling works and permanent works for TfL western subway with Old Oak Common Lane highway works
- Enabling works and permanent works for TfL eastern pedestrian bridge
- Permanent enabling works to accommodate future over-site development where expedient and economic
- Provision for additional rail transport interchange facilities
- Constructing, testing and commissioning the GWML conventional rail systems design, handing over and closing out with Network Rail as the operator and maintainer
Selected bidders for both contracts are expected to be invited to tender by the end of the year, with contract award in autumn 2018.
HS2 Ltd chief executive Mark Thurston said: “Launching this competition is another major milestone for HS2. Over the next decade, the successful bidders will go on to build two of the most challenging and high profile elements of the project – a brand new transport hub at Old Oak Common that will kick-start the regeneration of the site plus a major expansion of Euston.
“We’re looking for the best the construction industry has to offer. Companies that share our commitment to safety, efficiency, environmental protection and value for money. Together we will create two iconic stations – gateways to the capital and to the nation that local communities and the travelling public can be proud to call their own.”
Market engagement has already begun for the Birmingham stations, with the procurement process expected to begin early next year and a contract award in 2020. The construction procurement process for the Birmingham stations will have shorter lead-in times. It is expected to begin in 2018 with contracts awarded in 2020.