During the English Civil War new defences, comprising a bank and ditch interspersed with forts and bastions, were constructed around Bristol, running from the River Avon to Brandon Hill. At the western end of this defensive loop was a fortified promontory, now known as Water Fort, which guarded the seaward entrance to the Avon. Wessex Archaeology West has undertaken a topographic survey of Water Fort, and a desk-based assessment, for Bristol City Council. Although the fort is ascribed to the Civil War period, it does not actually appear on reliable historic maps until 1883.
 
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