The Morvi dam failure is the worst flood disaster to happen in independent India. On August 11, 1979, the Machchu-2 dam, situated on the Machhu, river burst [1] and that sent a wall of water through the town of Morvi in Indian state of Gujarat killing from 1500 to 15000 people.[2][3] It was caused by excessive rain and massive flooding. The spillway capacity provided for 5663 m³/s. But the actual observed flood during intense rainfall became 16307 m³/s, 3 times what was designed - that caused the collapse of the dam. Within 20 minutes the floods of 12 to 30 ft (3.7 to 9.1 m) height inundated the low-lying areas of Morvi industrial town located 5 km below the dam. During reconstruction of the dam the capacity of the spillway was increased by 4 times and fixed at about 21,000 m³/s.[4]
there was great economic loss.flood damaged the farmland leading to decrease in productivity of crops.