As far as I know, A river's mouth is simply called the 'river mouth'!
i think it means a rough part of a river
The tidal area.
68 miles, as far as Teddington
No the Harlem River is an 8 mile tidal strait that connects the Hudson River to the East River.
Yes the estuary is always a tidal part of the river.
its called a coast tidal line.
The part of a river that is underwater when the river overflows its banks is called the flood plain.
75 non tidal and 29 over the tidal part of the Thames
The East River is a tidal strait and not a river. The river is called the East River because it starts at the East of the state of New York.
Yes
Parts of it, near where it flows into the sea, are tidal. Further upstream, it is not tidal.
The River Thames becomes tidal at Teddington Lock, which is located about 14 miles upstream from central London. This is where the controlled flow of the river starts to be influenced by the tides of the North Sea.