Designed and constructed for the Konkan Railway Corporation Limited at Ratnagiri in Maharashtra, the Panval Nadi Viaduct spanning the Panval Nadi, is 420 m long and rises to a height of 60 m. The viaduct stands on hollow, tampering, octagonal pylons and the superstructure is a single cell, continuous span prestressed, precast box girder spanning 30 m between abutment and pylons for the end span and 40 m between pylon to pylon for the internal spans. The pylons were constructed using the strong slipform technique of continuous construction and incrementally launched, a method used for the first time in India!
The Panval Nadi Viaduct won the award for the Most Outstanding Concrete Structure in India from the American Concrete Institute (Maharashtra India Chapter).