The National Irrigation Administration (NIA) on Saturday disclosed that the recent flooding in Cagayan Valley is not wholly attributed to Magat Dam located in the Municipality of Ramon, Isabela.
To recall, the dam was pinpointed as the culprit in the widespread flooding within the Cagayan Valley Region especially in Central Isabela and in the entire stretch of the lower Cagayan River System down to Aparri, Cagayan during the onslaught of Typhoon Ulysses in Luzon in November.
The NIA stressed that the recent flooding in some parts of Cagayan Province cannot be wholly attributed to Magat Dam because it was an effect of the Frontal System and Amihan enhanced by Tropical Depression Vicky.
It added that the inflow and outflow experienced on 19 December 2020 is lesser by half of the inflow and outflow of Typhoon Ulysses and even without spillage from the Magat Dam, flooding was already experienced in portions of Cagayan, which affected 219 farmers comprising 213 hectares of agricultural land in Cagayan Province, while MARIIS recorded 2,670 hectares of the affected area.
NIA Administrator Ricardo R. Visaya stood firm that the recent flooding in the Province of Cagayan and some portions of Isabela was caused by natural calamities that are beyond human control, contrary to the statements of Samahang Industriya ng Agrikultura which accused NIA of failing twice in dam water release.
Magat River Basin is only one of the 20 river systems within the Cagayan River Basin and studies have shown that Magat Dam contributes only 15 percent of the river basin’s total water storage capacity and 21 percent if the considered control point will be in Buntun Bridge, Tuguegarao City.
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