Geopier Impact® piers are being installed through 15 feet of sandy clay and sand fill with urban debris to attain a bearing capacity of up to 8,000 psf in downtown Indianapolis. The Rammed Aggregate Pier® elements will support a 340,000 gsf 13 story mixed-use podium apartment project consisting of 206 tower units, retail and office units, a 4-level parking structure and podium deck featuring a pool.