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FMJ wants flood control masterplan

By Nidz Godino

PRESIDENT FERDINAND MARCOS JR. INSPECTS  RIZAL FLOODWAY

“Water doesn’t recognize boundaries…that’s why flood control has to be big plan,” President Ferdinand Marcos Jr. said  country needs to have  flood control masterplan as it braces for more torrential rain during typhoon season that is expected to be worsened by  looming La Niña and climate change.

Marcos visited and inspected Quezon and Rizal, two of the provinces inundated by incessant rains from Typhoon Carina and enhanced southwest monsoon-induced rains in the past days.

He said  comprehensive national plan on flood control should cover several regions, adding it also needs to consider changing weather patterns due to climate change that threaten communities  previously have not been affected by floods.

“Let’s prepare for  next flood…this is  first typhoon within La Niña…this might be prolonged… so, we have to prepare for that… let’s think about preparing for that,” the President said.

According to Marcos, former public works and highways secretary Rogelio Singson has crafted  flood management masterplan that would be implemented over more than two decades. But  plan should be expanded, he said.

“Although it will work… and it crosses most of Luzon, for  NCR ,National Capital Region…but we have no choice, we have to do something…we have to learn how to handle  new normal,” Chief Executive said, adding  plan would take 20 to 22 years.

Marcos was referring to  P350-billion flood control masterplan,  expected to benefit about 1.2 million people.

FMJ said because of sea level rise caused by climate change,  dikes built across  country could no longer protect low-lying communities during high tides.

Building higher dikes,would not solve  problem, Marcos said, adding  flood control masterplan must manage flooding to protect “production areas, residential communities and other important infrastructure.”

The President also expressed hope  country could tap assistance from  Loss and Damage Fund to find better solutions to flooding and other effects of climate change.

Meanwhile, Rizal Gov. Nina Ynarez told Marcos  newly inaugurated Upper Wawa Dam in Rodriguez, Rizal was filled by two days of nonstop rain.

“We were together with  inauguration of Wawa Dam and they were saying that…we saw it was empty and it would take six months for them to fill it up…as of now, with two days’ rain, it’s almost filled up,” Ynarez said.

Ynarez said without  Wawa Dam, “most likely San Mateo and Montalban would be down and definitely Marikina and parts of Quezon City and even Pasig would be affected because of Laguna Lake.”

The governor  submitted last year to  Department of Public Works and Highways (DPWH) plan for reservoir below Wawa Dam.

DPWH Secretary Manuel Bonoan,  among  Cabinet secretaries who joined Marcos in Rizal, said proposed reservoir in San Mateo and  series of small dams below Wawa “is now under consideration for financing by  Japanese government.”

Marcos also directed study on building of weirs along tributaries to control  water flow from Sierra Madre down to Rizal and Metro Manila, as unimpeded water flow causes severe flooding during rainy season.

Weir  is  small barrier built across  stream or river to control and raise  water level slightly on upstream side, essentially  small-scale dam.

“I don’t see  weir here in this country seems to be appropriate for us…maybe it’s applicable here in the Philippines,” the President said.

Proposed  50-year drainage masterplan for Metro Manila is still in the works, Metropolitan Manila Development Authority said.

MMDA general manager Procopio Lipana said  agency has submitted  masterplan’s terms of reference to  DPWH that could help create and implement it.

Masterplan  would determine  “detailed engineering design” of drainage systems in  entire Metro Manila, according to MMDA Acting Chairman Romando Artes in previous interviews late last year.

He stressed it would seek to prevent unstable flow of excess water due to varying sizes of drainages.

Proposed  50-year drainage masterplan would be funded by World Bank.

During  torrential rains from  southwest monsoon carried by Typhoon Carina,  MMDA reported existing drainage systems in Metro Manila carried 74 mm per hour for more than 10 hours.

Figure  was more than twice  carrying capacity of drainages at 30 mm per hour, it noted.

Lipana said  with rainfall from  southwest monsoon  allegedly exceeded that of Typhoon Ondoy in 2009, both drainages and pumping stations operated by  MMDA could have been overwhelmed by such  volume that was “beyond their capacity.”

Except  for  Libertad pumping station that caught fire,  rest of  71 pumping stations remained operational during incessant rainfall, he added.

Lipana also blamed garbage for  widespread flooding in  metropolis, as well as  lack of discipline of residents particularly those living near waterways in disposing their trash. He mentioned incident wherein flooding along EDSA near  old MMDA building in Makati City subsided after agency’s personnel performed declogging and retrieved waste from nearby drainage.

Sen. Grace Poe questioned  bloated budget for flood control projects which still failed to curb  flooding in Metro Manila and nearby areas after Typhoon Carina.

“Worsening flooding in Metro Manila appears not to complement increasing budget we are allocating for flood control projects every year,” Poe,  former public services committee chair, said.

Poe vowed to scrutinize  proposed flood control budget next year of  DPWH and  MMDA.

Poe is  new Senate finance committee chair, taking on position vacated by former senator now Education Secretary Sonny Angara.

Finance  committee is tasked to tackle national government expenditure program.

“In  upcoming budget deliberation, we will scrutinize  flood control budget of  DPWH, MMDA and other agencies…did  flood just flush away  billions of funds for flood mitigation, with every downpour, our taxpayers are left shortchanged and wading through damaging and disease-carrying floods,” Poe asked.

According to  2024 General Appropriations Act, DPWH has  P244.6-billion budget in its flood management program,  significant chunk of its total P996.79-billion budget this year.

During  budget deliberations last year, then senator now Senate President Francis Escudero hit DPWH’s proposed P255-billion flood control budget, surpassed  total proposed budget of other agencies like the Department of National Defense and  Department of Social Welfare and Development. 

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