Milone & MacBroom, Inc., which has recently worked with Yale Athletics on similar facilities upgrades, designed the Yale Bowl improvements. For the first time since the stadium’s construction in 1914, Yale installed synthetic turf in the arena, digging up natural grass that had deteriorated in recent seasons. “...placing a “safety impact mat layer” (PowerBase Pro) on top of that (Stone base) and then layering on a new synthetic turf. All of this will help the university guard against concussions, promote playability, and put the bowl in line with other Yale fields that have been replaced with synthetic turf and the fields of the majority of the other Ivy League schools.