Navigable river
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A navigable river is a river which can be navigated by boat. Often, it refers to a river which has a certain status, requiring bridges over it to be a certain height or have movable sections, and may be regularly dredged to maintain a certain depth.
For recreational river users, the term navigable implies passage is possible in a small non-powered craft, without requiring any man-made alterations or maintenance.
See also
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