Title: Slums in Metro Manila - Wikipedia
Headings: Slums in Metro Manila
Slums in Metro Manila
Contents
Locations of slums
City of Manila
Tondo
San Andres
Quezon City
Batasan Hills
Payatas
Bagong Silangan
Makati
Conditions within slums
Population
Physical location and composition
Access to utilities
Health disparities
Environmental impact
Legality
Activism and organizing
Root causes
See also
References

Content: Environmental impact
An aerial view of the Manggahan floodway with shanty towns on either side. During the 2009 flooding of Typhoon Ketsana, the illegal settlements reduced the floodway's effectiveness. In September 2009 Tropical Storm Ketsana hit Metro Manila and dumped one month's rainfall in less than 24 hours, causing the Marikina River system, including the Manggahan Floodway, to burst its banks very rapidly. It is thought that blocked pipes and a poorly maintained sewer system, along with uncollected domestic waste, were major contributory factors in the speed with which the flood waters were able to engulf the surrounding area. Illegal settlers were especially blamed for flooding since their houses reduce the effective width and blocked the flow of the floodway. During the height of the storm, the Marikina River had a flow of about 3000 m³/s (106,000 ft³/s), and the head of the UP National Hydraulic Research Center stated that the floodway could have handled this flow without overflowing if there were no settlers on its banks. Consequently, in February 2010, President Gloria Macapagal-Arroyo revoked Proclamation 160 that reserved 20 parcels of land along the floodway for 6,700 urban poor families, and ordered the forcible relocation of the illegal settlers whose houses were blocking the waterway to Laguna de Bay. Legality
In 1975, Ferdinand Marcos signed a presidential decree that made squatting on private and government-owned land illegal. Thus, resident of slums are also referred to as "informal settlers" and usually do not hold legal claim over the land they are living on. There are certain cases where the right of eminent domain has been pursued, although legal judgements rarely benefit those living in the slums.