The ODA has today issued a call for tenders to build a key footbridge in the centre of the Olympic Park.
The contract will be to build the Central Park footbridge in the south of the Olympic Park on the central pedestrian concourse.
It will span 30m over the River Lea at a focal point between the Olympic Stadium, Aquatics Centre and Basketball Arena, and is part of the ODA's Structures, Bridges and Highways programme.
Irish architects Heneghan Peng Architects with Adams Kara Taylor won the footbridge design competition last month.
The architectural concept was a single bridge structure in Games that will be transformed into two footbridges linked by a central blade-like walkway offering views over the river, and links between the river tow paths and the upper concourse in the Olympic Park.
ODA Director of Infrastructure and Utilities Simon Wright said, "With stunning designs for the Central Park footbridge unveiled it is essential that we bring on board a world-class company to construct this key piece of infrastructure.
"This contract is an opportunity for construction companies to deliver a striking structure in the heart of the Olympic Park which meets Games-time needs but which also leaves behind an important focal point in the Olympic Park for future generations to enjoy."
Two permanent footbridges connected by a permanent diagonal footbridge spanning over Carpenters Lock will need to be built.
The contract scope also includes the construction of temporary sections between the two permanent footbridges to provide a single bridge structure able to accommodate Games time spectators.
During the Games the bridge will have a total width of around 60 metres to accommodate increased spectator numbers.
After the Games temporary sections of bridge will be removed leaving two narrower bridges that span either side of Carpenters Lock, a unique 1930’s historic structure on the River Lea Waterway.
Work is expected to be awarded in late 2008 with work due to start on site in 2009.