For many years, downtown Austin visionaries have talked about the potential of Waller Creek and the adjacent floodplain that runs north to south though the East end of downtown. Through a massive tunnel project, work is underway to control the creek and thus remove a contiguous 28 acres from the floodplain, essentially increasing the size of downtown Austin by 11% by allowing development for the first time ever. Now, there is talk of a San Antonio-esque river walk or a string of parks to fill this amazing new space. To this end, a new not-for-profit, the Waller . . .