When the U.S. government decommissioned the Boston Naval Shipyard in 1974, the Boston Redevelopment Authority assumed responsibility for renovation of the industrial buildings and new construction. Constitution Quarters was the first of the adaptive reuse projects in the former navy yard. Relatively unchanged on the exterior, massive machine sheds, originally a foundry for large metal castings, became market-rate condominiums with dramatic but sterile floor-to-ceiling atria. Adjacent to Constitution Quarters, Shipyard Park (1981, CBT/Childs Bertman Tseckares and Casendino) celebrates the industrial and maritime heritage of the navy yard with a multilevel granite fountain and a deconstructed small industrial building converted to an open loggia. Continuing the same pattern, The Architects Collaborative in 1990 renovated Shipyard Quarters, an eleven-story industrial building on the harbor side of Shipyard Park.