Tamil Nadu closes all spillway shutters of Mullaperiyar dam

As the water level in the Mullaperiyar dam declined on Thursday, Tamil Nadu closed all spillway shutters of the dam.

According to officials, 10 spillway shutters that remained open were closed at 11 a.m. on Thursday.

On Wednesday, Tamil Nadu had closed three spillway shutters and 10 remained open.

The water level at 12 p.m. on Thursday was 136 ft. The tunnel’s discharge of water was 2,117 cusecs and the average inflow was 981.57 cusecs.

When the spillway shutters were closed, the water level in the Periyar river too declined. The upper rule-curve level of the Mullaperiyar dam until July 10 is 136.3 ft. 

Tamil Nadu had opened all the 13 spillway shutters on Sunday after the water level rose to 136 feet on Saturday evening.

Idukki reservoir

Meanwhile, the water level in the Idukki reservoir on Thursday was 2,364.32 ft (58.49% of the total capacity) as against the 2,340.26 ft (37.66%) the same day last year. The blue alert level is 2,367.33 ft and the upper rule curve level is 2,375.33 ft.

The power generation at the Moolamattom power plant continued at a maximum level and 17.1499 mu was generated on Wednesday.