Our Pick
Posted on @rawstates
Wood screw pumps installed
1913
New Orleans, Louisiana
Infrogmation of New Orleans · CC BY-SA 3.0 · Wikimedia Commons
A. Baldwin Wood's twelve-foot screw pumps let the city drain its back swamp and build on it, the neighbourhoods that flooded worst in 2005. Several of his 1915 pumps are still in service, and the design was exported to the Netherlands.
That was 1 of the hidden places.
Location: approximate area
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