The designer of London’s 2012 Olympic stadium has revealed that much of it may end up being gobbled up by bacteria after the games.
HOK Sport’s Rod Sheard, part of the Team Stadium lined up for the job, told Construction News that one of the decisions the team will have to make is what material to use for the 860 m wrap that surrounds the stadium.
The two options being looked at are whether the wrap will be produced from man-made or natural fibres.
Mr Sheard said: “You realise there is a huge range of materials out there, some completely man-made, some natural.
“The final decision on that is still to be taken but we will either go with a totally biodegradable natural fabric that literally goes back to carbon atoms or go the totally synthetic route.
He said of the synthetic option: “You take it off and cut it up, stitch it together and make bags out of it.”
The wrap was unveiled last week as part of the final stadium design. Work is scheduled to start on site in Stratford in late April or early May.
ODA chief executive David Higgins said that work was advancing well on procurement for the main packages for the stadium.
He said: “Watson Steel is on-board for the steel and we are just out to tender for the piling, site sheds and precast concrete.”
Rivals said this week that Stent seemed to be the most likely winner for the piling.
One piling source said: “It has been tendered but if you remember back to the Emirates stadium, it was Stent who did the piling there.
“Team Stadium is essentially the Emirates team so they will want to work with people who worked on that job.”
Firms including Tarmac and Bison are likely to be tracking the precast concrete elements of the stadium.
Meanwhile, details are emerging about the logistics for construction of the 2012 games.
The ODA is understood to have identified a site on the M11 near Loughton, Essex, that will act as a staging post for deliveries to the Olympic Park.
The site, which is currently used as a slip road for highways maintenance vehicles, will act as an off-site lorry holding facility providing a throttle to control the flow of road deliveries into east London.