Special Inspections at WTC Site Projects

Tectonic has provided special inspection and geotechnical inspection services at various projects at the WTC site.

The World Trade Center – Tower 4 was designed by the Pritzker-Prize-winning architect Fumihiko Maki as a 72-floor superstructure, rising 977 feet with 2.5 million rentable square feet of space. The tower offers 140,000 sf of retail on five floors, a 46 foot lobby, and art installations by Kozo Nishino and Thinc. It is an elegant achievement of technology, efficiency and sustainability. Tower 4 is located at 150 Greenwich Street and bounded by Greenwich, Liberty, Church and Cortlandt Streets.

World Trade Center – Tower 4 was designed in accordance with the highest energy efficiency standards to meet the LEED Gold level of sustainable design by the U.S. Green Building Council. It shares the site’s 16-acres with Towers 1, 2, 3, 5 and 7 in addition to the National September 11 Memorial & Museum, and the Transportation Hub.

Four World Trade Center features many structural enhancements, including a reinforced concrete core and columns with steel girders and beams. Safety systems were designed to exceed New York City Building Code and to meet agency requirements. The firm was responsible for providing QA/QC and Special Inspection services for all aspects of the construction.

The firm performed quality control monitoring and oversight of the construction project to ensure it met and exceeded the requirements of the building codes and the intent of the design plan and specifications. The firm assigned experienced professionals familiar with the types of materials used and the construction process to ensure the methods used by the contractors were proven to provide results.

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