Introduction
This
section of the wall was just over 105 metres long and ran south from the
south side of Pockthorpe Gate to the bank of the river where there was a
round tower. About 50 metres of the wall survives at the south end
and stands in parts to a maximum height of 4.5 metres. The wall is
at most 790mm thick and has lost much of the facing flint when houses
built against the wall on either side in the 18th and 19th centuries were
removed. [1] Archaeological excavations have
uncovered the substructure of the wall which is much more substantial and
goes down to a depth of at least 2.4 metres below the present ground
level. This is significant because other sections of the wall
elsewhere in the city have been shown to have virtually no substructure
with just shallow foundations filled with layers of compacted mortar and
flint. The depth of the lower part of the wall can be explained, in
part, by the presumed width and depth of the outer ditch on the east side
of the wall. Medieval documents indicate that barges were moored
here and the ditch had to take substantial amounts of water draining off
higher ground to the north and east of the city. Documents from the
16th century suggest that the whole ditch from St Martin's Gate drained
to the east.
Four
relatively large chunks of flint wall stand on the site of the tower but
archaeological evidence suggests that these are modern though the lower
part of the tower with a doorway on the inner side with a brick surround
and brick threshold were revealed in 1987.
The
whole of the surviving part of the wall is now within the Jarrolds
Printing Work and is on private property. [Map
01/01] Access to the public is not generally possible. We are
grateful to the company for allowing full and open access to the site for
the completion of the survey and this report.
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