The Staircase & Serpentine wall in the distance required skillfull surveying (sighting / leveling) the elevations. Pictured, workers are finishing the wall by adding a Double- Rowlock Brick cap. These old re-purposed bricks are from the demolition of buildings and are heavily sought after. Prior to installing the putting green (the tarped area that's protected from any construction traffic) and before the final grade was set. The massive underground drainage system had drain boxes at key locations to capture rainwater runoff, necessary to ensure there's no 'ponding' on the grassy lawn 'Fairway' or the elevated putting green.