Balfour Beatty has been given extra funding to complete the London Olympic Stadium reconfiguration project.
The decision by stadium operator the London Legacy Development Corporation (LLDC) to award the contractor a further £35.9M – taking the total bill for the job to £189.9M – follows mounting speculation over problems with the roof.
A statement from LLDC said: “This is a unique two year transformation project and a hugely complex engineering scheme, using techniques previously employed on oil rigs. Providing adequate support for the new roof has required significantly more strengthening work to the main roof truss, which was originally designed to be taken down after the Games.
“We have therefore today agreed to increase the value of the Balfour Beatty contract by £35.9M to £189.9M.
“We will meet these costs from the project contingencies and additional income we will generate from our other developments. There will therefore be no additional call on the taxpayer and no impact on our current programme.”
The extra cash injection from LLDC means the total cost of the Olympic Stadium has now gone over £600M.
Balfour Beatty was awarded the contract to convert the stadium in January 2014, which included installing the largest single span cantilever roof in the world, constructing the warm-up track, spectator and hospitality facilities, and external landscaping.
The stadium will be the permanent home of West Ham United Football Club from 2016 and the new national competition stadium for UK Athletics.
The venue will host five matches as part of Rugby World Cup 2015 as well as the 2017 IAAF World Championships and 2017 IPC World Athletics Championships, the first time these prestigious global events have been staged in the same venue in the same year.
A new floodlit 400m six-lane community athletics track will be built next to the main stadium.