Manila Philippines when Heavy Rain hits Metro Manila the water level along the Maraka river is one of the things closely monitored by local officials in the past the bursting of the river banks not only caused massive flooding in Maraka City and other parts of Metro Manila but also displaced hand of of fames living near Li according to the metropolitan Manila Development Authority mmba water from the Maraka river flows to the pacif River and Laguna D when it rains when areas around the Maraka River experience flooding the flood water also flows to other parts of Metro Manila to prevent heavy flooding in Metro Manila the mmda would directly divert water to the Laguna D through the mang theway