Clogging of natural drainage arteries is the tolerated norm.
Torrential rain, intensified by the mountains, resulted in water overpowering the natural drainage systems.
The road work seems to have cut off the natural drainage to the pond.
Meanwhile, the lake is slowly dying; it has no natural drainage and receives tons of bird droppings a year.
It is the world's driest continent with one of the poorest natural drainage systems.
Mississippi has many rivers, creeks, bayous, and other natural drainage networks.
The liquid flows through the natural drainage pathway that connects the tumor to nearby lymph nodes.
Large areas of protective mangrove forest had been razed and developers had built on wetlands, clogging natural drainage channels.
The natural drainage of soils varies from well drained to poorly drained.
They asserted that the construction had diverted runoff into their area, and that mudflows associated with the project had blocked natural drainage paths.
The berm, they say, ended just above their property, blocking the natural drainage flow along the hill and channeling water toward their home.
