Description of Services
This project involved the design of the Anji Khad Bridge, a 313-metre-long steel arch railway bridge spanning the River Anji Khad in a remote and mountainous region of India. The bridge was a critical component of a major railroad extension project and was designed to carry two railway tracks across challenging terrain.
Principal Engineer, Sena Kumarasena, Ph.D., P.E., served as the Project Manager and Lead Engineer for both the tender-phase and final design on behalf of Gammon India Limited. The site presented numerous challenges, including complex material logistics, remote access, and the need for modular fabrication and erection strategies suited to difficult terrain. The project also faced stringent technical requirements for structural safety, redundancy, post-damage serviceability, and seismic resilience.
To address these demands, Sena developed a three-rib, steel–concrete composite arch system that was ultimately selected by the Contractor Joint Venture (CJV) for construction. The design offered significant advantages in efficiency, fabrication simplicity, and constructability. It reduced steel consumption by nearly two-thirds, improved safety performance, and allowed for staged cantilever erection using hollow steel sections, which were subsequently filled with locally sourced self-consolidating concrete. This innovative approach was specifically tailored to the logistical and environmental constraints of the site.
