Motorway may cost 2000 an inch
* M74 extension to hit new record * Delays and inflation blamed * Road will ease congestion on M8...
A five-mile motorway extension in Glasgow is expected to become Britain's most expensive road after its costs hit 657 million - or 2000 an inch.
Ministers admit the M74 link is expected to cost 131 million a mile, after delays and inflation increased the original estimate by half, compared with 79 million a mile for Britain's next-biggest road scheme, widening the M25 around London.
Work is expected to begin in May on extending the motorway from south-east Glasgow to the Kingston Bridge, creating a short-cut for through traffic and taking 20,000 vehicles a day off the M8.
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