Bhubaneswar: Four more gates of Hirakud Dam have been opened. Currently, there are 16 gates through which to drain water. Half of the water in Hirakud is drained. There are 5,24,000 cusec water entering Hirakud. Out of that 2,48,000 cusecs of water is drained. With the exception of this, the water level at Hirakud Dam is now 611.56 feet. The water level in Chhattisgarh is expected to rise due to heavy rains in the upper reaches. There is also a strong flow of water under the head of the diamond. 6.83 lakh cusecs of water is flowing in Bermul and 7.60 lakh cusecs in Mundali. If the water joins the bottom of the head, there is a risk of swelling of the river Mahanadi.