Our Pick
Posted on @rawstates
Old River, holding the Mississippi in place
1963
Concordia Parish, Louisiana
Public domain · Wikimedia Commons
The Mississippi has been trying to abandon its channel and take the shorter, steeper Atchafalaya to the Gulf, which would leave Baton Rouge and New Orleans on a saltwater estuary. A concrete structure here holds the split at seventy-thirty by force. It nearly failed in the 1973 flood, when scouring undermined a wing wall, and the Corps has been reinforcing it ever since.
That was 1 of the hidden places.
Location: documented spot
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