Call it Underground Zero. In the middle of the World Trade Center site in Manhattan, workers are performing an intricate balancing act with steel and concrete, excavating beneath an active subway line while a number of other projects progress around them. The top-down permanent underpinning of the subway tunnel will create much-needed space for a new nearby iconic transit station as well as other facilities. Photo: Courtesy of PANYNJ Workers are creating necessary space for a new transit station, which is hemmed in on all sides at Ground Zero. Slide Show Graphic: Courtesy of STV No. 1 subway line runs
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.