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British Airports Authority

British Airports Authority now estimates that just £35M of the final £440M project costs for Heathrow Express was caused by the collapse of the October 1994 tunnelling collapse. A radical overhaul of the management structure is seen as saving the project £200M and delays of more than two years. But the total does not include the estimated £100M shared between BAA and Balfour Beatty's insurers.

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