The 45 million dollar Police Department complex, a superblock near City Hall in Manhattan, is a reinforced concrete frame structure. The fifteen story complex, containing 917,861 gross square feet, is basically a ten story office building placed on top of a five story base. The project required over 60,000 cubic yards of concrete, almost 10,000 of which went into the concrete mat. It is built with a waffle-type, double-slab integrated floor-ceiling sandwich. This accommodates all services without hung ceilings. The deeply coffered concrete structural slab is exposed and lighting and air conditioning outlets are incorporated in the coffers.