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The two bridges of the Severn crossing carrying roads (opened in 1966 and 1996) link Wales with the southern counties of England and are among the most important in Britain.
According to some sources, the name "Severn" is derived from the name Sabrina (or "Sabern"), based on the mythical story of the drowning of a nymph in the river.
A curious phenomenon associated with the lower reaches of the Severn is the tidal phenomenon known as the bore.