| Progress: On track
The Olympic Stadium’s cable-net roof was moved into position in December 2009. The venue’s 14 lighting towers have been lifted into place on top of the inner ring of this roof. The five bridges linking the Stadium ‘island’ with the rest of the Olympic Park are structurally complete and around half of the island’s 300 trees have been planted.
Milestone 2
The Aquatics Centre’s permanent structure and roof will be complete and all three swimming pools will be dug out.
Progress: On track
The structure of the Aquatics Centre’s spectacular wave-shaped roof was completed in autumn 2009 and the installation of the roof’s covering has begun. The 3,000-tonne structure now sits on its three permanent concrete supports.
The three concrete swimming pools have been completed and tested – filled with more than 10 million litres of water to check they are watertight – and are ready for tiling.
During the Games, the majority of spectators will use a 48m-wide bridge to enter the Olympic Park. This bridge will span the North London Line, the Waterworks River and part of the Aquatics Centre. All six abutments (supports on land) and piers (supports in water) for the bridge have now been completed and the parts of the bridge that span the river and railway have been lifted into place.
Milestone 3
The Velodrome structure and roof will be complete, with work about to start on installing the timber track.
Dostları ilə paylaş: | 
