MANILA, Philippines -- A Quezon City councilor is eyeing the allocation of P30 million for the study and planning of an alternative rainfall drainage to lessen the possibility of flooding during heavy rains.

In a proposed ordinance, city councilor Bernadette Herrera-Dy is proposing another drainage system for huge volumes of rainwater, which will drain out to the Manila Bay through the Tullahan River.

Herrera-Dy pointed out that Quezon City must protect itself from another flooding similar to one spawned by storm Ondoy on September 26.

?There is an urgent need to provide one or several alternative huge storm drainage outfalls in order not to stunt the significant commercial, residential and economic growth in Quezon City,? she said.

Under Herrera-Dy?s proposal, a budget of P30 million will be set aside from the city government?s calamity fund for the feasibility study and other preparations for the alternative rainwater drainage.

The proposed alternative drainage for rainwater would cross Quezon City in a northwest direction via the Tullahan River.

In particular, the alternative drainage system will pass through waterways near Mindanao Avenue, Quirino Highway and C.P. Garcia Avenue (C5) to redirect huge volumes of rainwater.

The ordinance notes that the existing storm drainage system, which runs from Mariabolo Creek out to the San Francisco-San Juan River and out to the Pasig River, has become unsustainable because of changes in the city?s landscape.

Herrera-Dy added that the severe flooding in many areas in Metro Manila on September 26, was a result of heavy rainfall that day, which was unable to flow freely along waterways because of informal settlers and garbage.

?Quezon City needs to mitigate and address through feasible and necessary means the effects of natural calamities and worsening consequences of global warming to property and human lives,? the ordinance said.