Rift is at a much larger scale than earlier projects but continues to utilize the spatial and structural potential which folding, bending or shaping can give to thin planes of material. In this case, as the reinforced concrete retaining walls cut more deeply into the ground they undulate with increasing amplitude.  Not only does this result in a powerfully evocative spatial envelope, the increase in ‘effective’ cross-sectional depth which is a consequence of the increasing amplitude of the undulations results in a proportional increase in the inherent structural capacity of the walls.