There was flood at Pag-ibig Citihomes Subdivision in 2011, but definitely not caused by Tropical Storm Sendong. The October 2011 flood only affected Phase 2. The two other phases were spared.
The incessant downpour from early evening to the wee hours of the following morning led to the flooding in Phase 2. Flood water from the surrounding hills of the subdivision, passed through Phase 1 and Phase 3, made the Phase 2 the catch basin of rainwater.
The heavy downpour resulted to swelling of the Bunkalalan River, which runs beside Phases 2 and 3. The river is usually almost dry during regular days. You can even walked across it. The swelling of the river aggravated the situation since rainwater could no longer be dumped to the river.
Extent of Flood
The floodwater started to rise at around 5:00 o’clock in the morning. Fortunately, flood water didn’t seep into the houses but it rendered almost all roads in Phase 2 impassable. There was no reported backflow in houses’ comfort rooms; the usual case in flood incident.
The River Rechanneling System
The river rechanneling system which was implemented after the November 2009 flood incident works during the flood. It had helped ease the water in the swelling Bunkalalan River; without it, tons of excess water from the river would have seeped through the subdivision.
Below is an amateur video of the October 2011 flood incident showing the swelling of Bunkalalan River and some shots of the flooded road of Phase 2. The working river rechanneling system is the one you will see nearest the bank. This is always dry during regular days. The outer channel is the Bukalalan River channel.