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A comment on Pre-Inca canal system uses hillsides as sponges to store water. Parent comment
https://www.notechmagazine.com/2015/06/water-johads-a-low-te...
They expressly do not dam a stream, they collect runoff. You put them in low lying areas that normally form puddles in monsoon.
The idea is to prevent runoff, just like the ones in peru.
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https://www.notechmagazine.com/2015/06/water-johads-a-low-te...
They expressly do not dam a stream, they collect runoff. You put them in low lying areas that normally form puddles in monsoon.
The idea is to prevent runoff, just like the ones in peru.