Before revision: Very large locks Berendrecht Lock (right) and Zandvliet Lock (left), located at the entrance to the Port of Antwerp (top) from the Scheldt (foreground) Upper Mississippi River Lock dam
After revision: Very large locks Berendrecht Lock (right) and Zandvliet Lock (left), located at the entrance to the Port of Antwerp (top) from the Scheldt (foreground) Upper Mississippi River Lock and Dam No.