Kolak River is seven kilometres from Vapi and 43 km from Bilimora railway stations. The river originates from Saputara hills near Valveri and meets the Arabian Sea, the NHSRCL said. According to the NHSRCL, bridges have been constructed on the rivers Par and Auranga in Valsad, Purna, Mindhola, Ambika and Venganiya in Navsari, Mohar in Kheda and Dhadhar in Vadodara district.
