New NY Bridge
Since April of 2013 LiRo has been providing construction quality control (CQC) services as part of the Tappan Zee Bridge Constructors design-build team (TZC) for the new Tappan Zee Bridge (New NY Bridge). The project is the largest design-build project in North America, and is scheduled for completion in July 2018. LiRo provides on-site and off-site quality control inspection services for pile driving, welding, reinforcing steel, concrete, structural steel, and civil disciplines. In addition, LiRo develops ITP's (Inspection and Test Plans), Quality Control Plans for construction activities, and manages construction materials documentation. Services also include periodic off-site fabrication facility audits and, in conjunction with subcontractors, specialty testing and inspection services as requested by the client.
The new three-mile long twin bridge structure features 1,200 ft long dual composite cable stayed main spans, combined with 515 ft long span steel girder back spans. The four main towers are outwardly inclined. The entire structure is supported on 50 miles of foundation piling, 220,000 cy of concrete, and 220 million pounds of U.S. Steel. All construction material used and every process employed during installation are in accordance with a 100-year design.
Resident/ Construction Engineering & Inspection