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LOOK OUT FOR LOADERS: The giant observation cab that will sit atop London Heathrow Airport's new control tower was trundled slowly across the runways late November on multi-axle flatbed loaders.

The loaders carried the 32m high cab 2km from its assembly position on the airport's southern perimeter to a final operating location near Terminal 3. There it will be gradually strand jacked 48m into the air while four steel support mast sections are inserted beneath to create a 87m high tower.

Fabrication of the tower is being done by Watson Steel with Dorman Long supplying the temporary frame to stabilise the top heavy unit during its move. Arup is structural engineer and Mace is in charge of construction management for overall client BAA. Laing O'Rourke has built the foundations. The $90M tower will become operational in 2006.

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