Chicago spire will become America’s tallest building by the end of 2010. It has been designed by the well-known Spanish architect Santiago Calatrava. The 150-floor building is being developed by Garrett Kelleher of Shelbourne Development Group Inc and is expected to be completed in 2010. Access to the tower will be from Lower Lake Shore Drive to reduce the impact on traffic in the neighborhood – the tower is expected to add one car a minute to the local traffic pattern. Within three months of the building announcement, 800 people had contacted the developer wanting to buy apartments in the building.