 Most external features have been destroyed by a 19th-century gravel quarry on the south, and the irresponsible dumping of tons of chalk and top-soil along the eastern side during building construction of Marsh Farm in the 1970s.Geophysical surveys in July 1985 and January 2009 failed to reveal any very positive indications of internal features.The bank still stands 2.6 m high in places and on the north side the excavated ditch was 9.2 m wide and 2.1 m deep.