Saltwater includes the tidal portions of rivers.

The Delaware Estuary is the tidal portion, or the lower half, of the Delaware River Basin.

The river's tidal portion forms the harbor for the city of Baltimore.

The tidal portion of the river, which starts roughly here, is called the Sweetwater Marsh.

Trout may be taken from the tidal portions of such streams year around.

It is located in the central area of the state along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay.

One population of a Washington state monitor plant species, Henderson's checker- mallow, occurs within the tidal portion of the estuary system.

The tidal portions of the river host migratory salt water species such as striped bass, fluke, winter flounder, weakfish and bluefish.

Its navigable tidal portion is crossed by one bridge, located on Magothy Bridge Road in Pasadena.

Brentford is the first point which was easily fordable by foot on the tidal portion of the River Thames (this was before dredging took place).