Internal Diameter of envelop enclosure structure for the Car dumper shed is 89m. Main structure consists of three layers. Top level is +5.338m. Funnel level is -1.042m. Base level is -15.462m. Platform size is 77.9mX61.2m. Single length of corridor envelop enclosure structure is 165m. Double-cellular type box culvert underground corridor is 187.143m for each of both. Box culvert internal cellular size is 4.8m X2.8m. Under the car dumper, grid, discharging funnel and vibration feeder machine are equipped. Belt conveyor is installed under car dumper shed and underground corridor. Affiliated facilities like control unit, ventilation, dust removing, maintenance, water supply and power supply are provided.