Each week, 55 truckloads of concrete and 50 tons of structural steel are added to the structure of the Austonian, growing what will be the tallest building in Austin by one more floor. This week, the Austonian hit the half-way point -- the 28th floor was poured ad the project continues on its march to completion in 2010.Since it has been a little while, here are the key facts on the Austonian:Height of Building: 683 feet; 56 storiesGross Area Square Feet:
