Thelowest bridging point (orlowest crossing point) is the location on a river which is crossed by a bridge at its closest point to the sea.[1]
Historically—that is, before the development of engineering technology that allowed the construction of tunnels andhigh-level road bridges—the lowest bridging point of a river was frequently the point at which an important town or city grew up, and particularly where trade and commerce took place. The place could be served by roads on either side of the river, allowing access from a widehinterland; had river transport available upstream; and often was at a location that allowed seagoing traffic to approach it from a downstream direction.
Examples of historic lowest bridging points in Britain include:
MedievalVenice was centred either side of theRialto Bridge, which was the lowest bridging point of theGrand Canal until thePonte dell'Accademia of 1854.[7]
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