Was Magat Dam the ‘major cause’ of flooding in Cagayan? NIA chief doesn't think so  | Inquirer News
Close  

Was Magat Dam the ‘major cause’ of flooding in Cagayan? NIA chief doesn’t think so 

/ 11:58 AM November 24, 2020
Great flood in Cagayan: A case of unclear communication?

Magat Dam. PHOTO FROM EN.WIKIPEDIA.ORG

MANILA, Philippines — If National Irrigation Administration (NIA) administrator Ricardo Visaya were to be asked, the discharge of water from Magat Dam was not the “major cause” of the flooding in Cagayan amid Typhoon Ulysses.

During the joint hearing of the House committee on agriculture and food and the committee on North Luzon growth quadrangle, Visaya presented a matrix which shows previous weather events that hit Cagayan.

ADVERTISEMENT

In the said presentation, Visaya said that during Typhoon Emong in May 2009, Magat Dam’s maximum water discharge was at 8,068 cubic meters per second (cms), with the water level at Buntun Bridge in Tuguegarao reaching 9.82 meters.

In a monsoon event back in November 2010, Visaya said that Magat Dam released a maximum of 1,351 cms, lower than what was released during Typhoon Emong.

FEATURED STORIES

However, Visaya said water level at Buntun Bridge reached 12.70 meters, which was higher compared to Typhoon Emong even with the lower water discharge from the dam.

Visaya then compared these to Typhoon Ulysses where Magat Dam released 6,706 cms, lower than that of Typhoon Emong. But the water level at Buntun Bridge reached 13.2 meters.

“Now, can we draw a conclusion from this matrix? Yes. Is it really Magat Dam that provides or is the major cause of the flooding in Cagayan? I don’t think so,” Visaya said.

“It’s very clear that yung contribution ng Magat Dams a flooding ng Cagayan Dam was not really the major cause but we have to look into the other factors that could have contributed to the flooding in Cagayan,” he added.

Visaya also pointed out that Magat Dam is only contributing 15 percent to the entire Cagayan River basin.

He likewise explained that Magat River is more than 130 kilometers away from Tuguegarao City in Cagayan, as he cited the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) in saying that it would take 20 to 24 hours to reach Tuguegarao in the event that Magat Dam discharges water.

“Kahit mag-release ka ng malaki ngayon, hindi agad mapupunta dun,” Visaya said.

JPV
Read Next
Don't miss out on the latest news and information.

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

TAGS: Cagayan, Isabela, Magat Dam, Ricardo Visaya
For feedback, complaints, or inquiries, contact us.


© Copyright 1997-2021 INQUIRER.net | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.