The interviews, which ran throughout last week at the ICE, will be used to whittle down the contenders before a competitive dialogue-style negotiation begins.
Still in the running for the £100M programme partner role to manage the overall scheme are:
Legacy 3 (a joint venture between Parsons Brinckerhoff, Balfour Beatty Management and Davis Langdon
Transcend (a joint venture between Aecom, CH2M Hill and Nichols Group)
And still in the running for the £400M project delivery partner role to manage the complex central London tunnelled section are:
Laing O'Rourke (with Atkins)
Flare (a joint venture between Fluor, Arup and EC Harris)
Capita Symonds & NNN joint venture
An announcement on the programme partner role is expected early in the New Year. Executive chairman Doug Oakervee jetted in from a fact-finding mission in China to sit in on the final interviews for this role on Friday. Oakervee had been looking at the project teams involved in constructing China's massive tunnelling programme.
An announcement on the project delivery partner role is expected later in the Spring.