How do they drain a lake?

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I heard a story about how Mexico City was founded on a lake and was wondering how they could drain a lake especially so long ago.

2007-01-25 08:33:40 · 2 answers · asked by Joseph M 2 in Science & Mathematics ➔ Geography

Generally, you divert the flow of the rivers/streams feeding it. Then you create a drainage channel to empty the contents.

2007-01-25 08:46:03 · answer #1 · answered by mary4882 4 · 0⤊ 0⤋

Usually by a sump pump

2007-01-25 16:42:09 · answer #2 · answered by Moose 6 · 0⤊ 0⤋