 The project required the dumping of of dirt into the decommissioned reservoir, which was set to be completed within a year.That April the American Society of Landscape Architects, New York Chapter (ASLA) proposed a sunken meadow and lake within the former reservoir site.In June 1930 the city adopted a plan presented by the ASLA for a great oval of turf, its edges softened by trees planted in clumps within and outside the encircling pedestrian walkway.