A Rooftop amenities addition to an existing residential tower in the upper west side. The project required an addition of a steel platform (beams and stub posts) for the proposed rooftop amenities OMC involvement in this project included the design and coordination of steel connections and the production of complete set of steel shop drawings including structural steel, staircases, railings and misc. steel. Challenges include splicing the steel beams every 8 ft to allow transporting the beams to the roof, and the coordination of high and low steel with respect to existing structure