contributed to the collapse of this bridge. The trigger for initiation of the collapse appears to have been unpredictable and sudden additional loading due to failure of supporting arrangement of the form traveller.” 69.2 Since this is a design-build "Turnkey Contract" which covers planning, investigation, design, construction and maintenance of the cable stayed bridge, the primary responsibility for the collapse lies with the Contractor, M/s Hyundai — Gammon (JV). The Contractors are responsible for allowing the structure to reach a vulnerable stage without taking adequate precautions with respect to stability and robustness of the partially completed structure and the short fall in the design. They are also responsible for deficiency in workmanship in the construction of span P3-P4. 9.3 The design for this bridge was prepared by M/s SYSTRA, the Design Consultants of the Contractor M/s Hyundai-Gammon (JV). Since there have been shortfalls in design, the responsibility for the same