Willie Walsh and IAG: Work out cost of crossing M25 before Heathrow runway plan
The owner of British Airways said that the development should not be confirmed until detailed plans for the M25, which will pass under the third runway, are finalised.
See full article in the Times at
The IAG submission to the Transport Select Cttee is at
Possible plan to put runway and taxiways on a bridge over M25 (not a tunnel) to save money
The Airports Commission (that cost almost £20 million) looked -in theory – at everything in great detail, and its (allegedly) incontrovertible recommendations have now been followed by government. It talked about the M25 needing to be tunnelled under the runway. It did not mention any sort of bridge. But Heathrow was asked by government to cut the cost of its scheme (in order not to raise costs to passengers, to keep demand for flights high) so it came up recently with the idea of a bridge over the motorway. There is a bridge for one of the runways (+ taxiways) at Schiphol, so it is possible. However, there are enormous questions, not the least of which being that nobody has seen any details (cost, practicality, level of disruption, safety, terrorism danger etc) let alone been consulted. The section of motorway that might be bridged is the busiest on the M25, one of the busiest (it might be the busiest) in Europe, and the busiest in the UK. DfT figures show around 263,000 vehicles per day on the Junction 14-15 stretch in 2014. The runway would need to be raised about 8 metres in order to get over the motorway. Heathrow has only said it would spend a total of £1.1 billion for surface access infrastructure. The cost of tunnelling was estimated by the Airports Commission at £3.2 billion. Chris Grayling said absolutely nothing in his announcement, or in Parliament, about how much of the TfL estimate of £18 bn for surface access work the taxpayer would have to fund.
Heathrow conceded on Tuesday night that it may have to re-examine its plans for an extension under the M25, possibly replacing the tunnel with an elevated bridge, after it emerged that Highways England, the body in charge of Britain’s major roads, considered the scheme a major risk.
Highways England warned there was a “significant risk of cost overruns” in the M25 tunnel scheme, the bill for which it estimated would be between £476m and £1.1bn. Correspondence released by the Department for Transport showed that the roads authority described the scheme as “high risk”, warning of a “a substantial risk of excessive customer frustration about what might be prolonged period of disruption”.