This is one of about twenty-five forts that were established at the time of, or after the conquest but before the Boudican revolt.
http://www.pastscape.org.uk/hob.aspx?hob_id=457187
http://roman-britain.co.uk/places/lake_farm.htm
https://historicengland.org.uk/listing/the-list/list-entry/1002418