At £75,000 per tower, Owen Williams structural engineer Chris Howie's solution is the cheapest. It involves sawing the domes of each tower into two horizontal sections which could be taken away and stored until the new stadium is ready, when they would be brought back and positioned by crane.
The operation would involve erecting a temporary steel frame around the towers to provide support and prevent outward thrust from the domes. A stepped horizontal saw cut would then be made through the dome bases before the top section is lifted off. A second horizontal cut would be made before the lower portion is removed.
'The main reason to do away with the body was because of the cost and feasibility of providing stability to the towers after removing the grandstand, ' says Howie. 'The difficult bit would be the saw cutting both in terms of access and time.'
He believes the work could be done in six months for a total cost of £150,000 - £200,000.