Legoland's latest rollercoaster is under construction in Windsor as specialist contractor Roger Bullivant piles its foundations. Rather than rely on the famous little plastic bricks, contractors will support the 400m long track on 123 continuous flight auger piles. The 450mm diameter piles are being installed by the House Foundations division of Roger Bullivant. The Jungle Coaster ride will open to thrill seekers next month and will include a 16m plunge and 60km per hour top speed that should test the hardiest digestive system. Brymor Contractors is the main contractor and Mott MacDonald the engineer.