A New Perlustration of Great Yarmouth
sand that Yarmouth is built on is part of the Devensian
deposit. It is not a sea thrown sandbank. It has become
thicker over the last two millennia, partly due to wind
blown deposition but mainly due to man made soil
importation during that period. Most of the layers
found in the sewer trench at Nottingham way were
man made. There is some wind blown sand, but almost
the whole of the four metre depth excavated, is of
imported soil.
The pit at the west side of South Quay showed a deposit
of blue-black clay, that seems to have been deliberately
placed to contain the river bank. I was not permitted
down into the pit, but there were clearly defined glacial
strata in the pit and at the bottom of the pipe trench at
5 metres depth.
At the bottom of the pipe trench, the whole way
along Nottingham Way was a perfectly undisturbed
glacial golden deposit in fine stratification, as found
at Gorleston cliffs and in the cut for the new road, all
showing how there is a continuous glacial sand deposit
from Corton, though Caister and beyond.
Glacial strata
The picture, below left, shows detail of glacial sand
and gravel layering in the Bridge Road, Gorleston
underpass. The sand was smoothly and evenly
deposited in continuous sheets as the ice melted. The
same pattern of continuous unbroken banding was
found in the bottom of the pipe trench at Nottingham
Way. The sand under Yarmouth was laid down in the
ice ages, and was not broken up by incursions of
the sea. These findings of November 1993 make the
establishment of an early (prehistoric) settlement at
Yarmouth entirely possible.
The “Greasy
Spoon” see
page 32.
Below is the
pedestrian
underpass under
construction.
Gorleston Cliff, 1987.
A series of posts supporting the quayside were found
underneath the trench being dug for the new sewer
along the South Quay. The tops of these posts were
found 2.1 metres below current ground level. This
indicates a sea level at least that much below the
present, since in times of flood the sea comes over
the quay, even with the modern sea defences. These
posts appear to be in the same run (line) as were found
under the Town Hall and at The “Dukes Head”. The
timbers of a boat found in the pipe trench on South
Quay were submitted for dating by dendrochronology
(tree rings) but could not be dated by this means. Also
unsuitable were the timber posts just mentioned. The
boat however has been compared to others of similar
type and said to be “early Saxon”
[v]
This boat being
well above the timbers, and in the upper fill, means that
the bank timbers are of a date at least early Saxon, or
even older. The boat, of lapped timber construction, was
impossible to date by dendrochronological methods,
but the type of construction of the boat placed it
as being of a mid-Saxon period. Further along the
quayside a deep pit was later dug to allow the pipe to
be bored under the road without disturbing the traffic.
The pit on the quayside revealed a discrete deposit of
blue clay, which effectively contains the flow of the
river. This was only found beside the river, and not
further away as the trench proceeded into the town.
Interestingly, a similar clay deposit was identified
many years previously on the opposite bank of the
river by P.E.Rumbelow at Fellowe’s dock.
Since the sea post Devensian ice age has never been
significantly higher than it is now, other than at times
of flood, there never was a great estuary open to the
sea as was formerly thought. Breydon water, as now,
was subject to the tide, and to occasional flood. The
23
The Revised History of Great Yarmouth
Chap-
ter One
Geology
and Ar-
chaeol-
Many animals were kept within the town walls in me-
dieval times. This may have been particularly encour-
aged as part of the town’s defences, but was common
practice as a ready means of provision of fresh food at
a time when there was no domestic refrigeration. There
are many animal bones under the Market Place, and a
large quantity of bone was found in the pipe trench at
the west end of St.Peter’s Road.
Geology
and
Archaeology
Ref viii
Detail of glacial strata.
It is evident from the aerial photos that the whole of
the surrounding area was quite densely populated and
productive arable land before the Roman invasion, and
when the Romans came, they took over a previously
settled area of some significance. Britain was an exporter
of grain to the continent before the Roman invasion.
The land around Yarmouth was intensely cultivated, and
must have been involved in the grain export trade.
At
Gorleston
in the cliff,
there are
two lines
of flint
laid down
as glacial
out-wash
on top of
the sand.
Caesar, in his “Conquest of Gaul”
Ref ix
does not refer
to his expedition to Britain in 55 B.C., as having any
specific economic purpose. It certainly was known
to the Romans that Britain was a prosperous place.
The local grain supplies would have been essential to
the Roman army. This I suggest as reason enough for
the two forts, and so it may be for much of the Saxon
Shore fort system, protection for the Roman army’s
food supply.
It seems to me that Yarmouth itself could have become
a settlement during the Roman period. Long after the
Roman conquest there was a large wooden town on the
Yarmouth site that was totally destroyed by the invading
Vikings, led most likely by Swein or Thorkill.
[x]
The
remnants of this large wooden Saxon settlement has
been seen by Percy Trett at Hall Quay and Rogerson
at Fuller’s Hill. In January 1994, a layer containing
burned straw and wood was uncovered in the bottom
of the pipe trench in Nottingham Way, that may well
be continuous with the burned layer found at Hall
Quay, Crown Buildings and Fuller’s Hill. This seems
to represent a substantial wooden town, burned down
in its entirety at around 1000 A.D., just before the Nor-
man Conquest. Carbon dating at Fuller’s Hill showed a
date for the fire of A.D.940 -1060, if this is indeed the
same fire. A town of such size, equal it seems to the
medieval town, must surely have been in existence for
some centuries before it was consumed with fire. The
Saxon town probably had a ditch and wooden pallisade
around it. Although Roman roof tile remnants have been
found at various sites with some ease considering the
small excavation sites, nothing like this was found at
Nottingham Way, Fuller’s Hill or the Hall Quay. The
Roman remains seem limited to small areas and could
have been reused from the forts, or may represent just
a few permanent buildings within the site.
This photo was taken at the edge of the “river
feature”, the point at which the glacial melt stream
ran in over what is now a cliff. The uninterrupted
flint line is clearly seen.
About the Gorleston Cliffs
The rootlet bed at Corton, Rumbelow’s Diary
About the Gorleston Bypass
24
Chapter
One
A New Perlustration of Great Yarmouth
Sand blowing into the town from the beach.
When did the rise in sea level to that at present occur?
If we believe Ayers and Murphy, then there was a rising
of the sea level by about 1 metre sometime around
1000 years ago. For the sea to be a full 3 metres lower
implies a date considerably earlier. Interestingly, it is
now thought that the Thames at Roman
London was not tidal, since there has been
found an ancient yew forest on marshes
below Dagenham, and yew does not like
either damp or saline conditions.
[vi]
The
height of the sea at Roman London was 15
feet lower then.
[vii]
As far as the previous
rise of 1 metre is concerned, we should
note the evidence of archaeological
excavations at Feddersen Wierde, on the
Weser. There was a large settlement there
which was abandoned in about 450 A.D.,
apparently due to rising sea levels. The
interesting thing then is that Yarmouth
appears to have survived this flooding
- how could this be? To be above the
range of the tides, Roman London must have been
well inland. The same must be true of Yarmouth.
Furthermore, those sea level rises were much more
dramatic than those now being noticed.
Layers of sand between layers of mud are easily seen
in the trench on South Quay, which shows clearly
that the sea and land surface from ice age times at
Yarmouth, were several metres lower. This contrasts
sharply with the land surface at Gorleston golf course,
where the edge of the sand cliffs shows no build up
of sand or mud over the glacial deposit. This could
easily be just a result of efforts to reinforce the river
bank, but the huge build up of sand and soil layers is
found right across the town, from river to wall.
Crown Buildings on Yarmouth Way house the
Department of Social Security Offices. (1987) The
burned layer was found in the foundation trench here
in 1971.
Ref ii
This tremendous quantity of sand and imported soil has
buried the ancient settlement which now lies so many
feet below the surface that it is almost impossible to
find. The likelihood is that the townspeople even in
recent centuries were keen to rebuild their dwellings
at ever higher and higher levels, rather than face the
risk of flood. It can be seen from what excavation
data there is, that soil (millions of tons of mud)
was imported in great quantities on top of layers of
sand, presumably to stabilise the land surface, but
also because the inhabitants kept animals within the
town. The depths of various layers are different in the
north and south of the town. It seems that there was
much more sand at Fuller’s Hill, whereas the trench at
Nottingham Way showed nearly all imported earth.
This is the sole remnant of the ancient street of
Fuller’s Hill that was full of fine medieval buildings
until demolished wholesale in 1971 for road
improvements. Burned material found at Fuller’s Hill
in 1976 was carbon dated to the time of the Viking
Invasion.
The photo top left, dating from about 1935 shows how
the wind blows the sand across any small obstruction,
to settle in the town. Some of the sand may therefore
be wind blown, but most was deliberately introduced
- an easily available material to raise the land further
before bringing in the mud that would have to be
carried from further away. The town wall is too high
to expect that much sand to blow over it.
25
The Revised History of Great Yarmouth
Chap-
ter One
Geology
and Ar-
chaeol-
In 1956 Charles Green conducted a dig, over a
mere two days, inside and outside of the town wall
at Alexandra Road. There was a detailed report in
“Norfolk Archaeology.”
[xi]
Inside the town wall
at 11 feet below ground, he found Roman tiles, both
tegulae and imbrices (interlocking tiles that fit over
each other), and a single sherd of fourth century
grey ware. Outside the wall he found a dark layer of
soil, and the wall was seen to have been built upon
a flagstone base. He did not report on the nature of
the outside of the wall below ground. This would
have been most interesting, since above ground the
wall here is cut-flint faced rather than rough, and a
clear indication of the original ground level at the
time of building the wall could have been gained,
but this opportunity was lost.
Ref xi
Geology
and
Archaeology
George Rye at
Blackfriars,
skull and stone
pillar from the
monastery.
In 1974, George Rye and Percy Trett excavated the
Blackfriars Church, which was discovered at the site
of the new fire station at Friars Lane (TG52500680).
This excavation was largely carried out by mechani-
cal digger. Rye had little time to record details as the
work progressed uninterrupted. A report appeared
in Norfolk Archaeology
[xii]
. Of interest were eight
stone coffins at a depth unstated, (but possibly some-
what below 8 OD which is the only measure given)
underneath which was found a single unabraided
Roman sherd, black burnished ware of 2nd century.
Again the point must now be made that the ground
here was formed by the ice age melt, and this sherd
therefore has great significance.
Ref xii
Andrew Rogerson of Norfolk Archaeology in a hole
at the Market Place, 1993.
The photograph middle left, February 1993, shows
Andrew Rogerson in a hole dug for the concrete
stands for the permanent market stalls in the Market
Place. (Rogerson was the Norfolk archaeologist in
charge of the Fuller’s Hill excavations) Some 12
th
century pottery potsherds were at this level in the
Market Place. The workmen also found animal bones
which I showed to Percy Trett, who identified the
jawbone of a small horse.
Boreholes outside the north-west tower, on the site
of the new magistrate’s court in 1992, have shown
an area of silt below the windblown sand, and on
top of the glacial deposit, that could represent either
an early river channel, or possibly an old moat, now
filled in. Here there was found some timber at a three
metre depth in a new drainage trench. The timber
was only partly removed by a mechanical digger.
It was not properly examined, although thought by
the site foreman to have been part of the keel of a
wooden boat. Unfortunately I only found out about
this after the event, and no-one contacted the Norfolk
Archaeology Team. I did interview the foreman and
his men, but they had aready concreted over the
pathway. This site should one day be investigated
further when the opportunity arises.
Site of
Power
station, now.
The Elizabethan map shows the sixth and seventh
havens or channels cut from the river to the sea.
Charles Green excavated at the power station site, which
is where the sixth haven can be seen on this map.
The Elizabethan maps
26
Chapter
One
A New Perlustration of Great Yarmouth
Some excavation took place on the South Denes for the
building of the power station in 1954, and was reported
on by Green, who described wind-blown sand, beach
deposits, a silt layer, silty sand, and basal red beds. He
drew attention to a deposit of barnacles in one part.
He was unaware, it seems, of the process of glacial
deposition, and certainly unaware that there had been
a lower land/sea interface at the previous interglacial
period, at which time the deposit of barnacles may
well have arisen, but to me the most likely answer is
that this was the site of the sixth haven - it appears so
from inspection of the Elizabethan map. Some new
work on all of the above sites is clearly required.
Screw piling at
Regent Road.
In the book
“The Making of the Broads”
there is a
description of a borehole at Queens Road, where a
mixture of sand and gravel was found. This appears
to be the same as the material pulled up from a depth
of 18 metres by the screw piling machine on Regent
Road in 1992. This showed sand and gravel to its
full depth, although a screw pile inevitably churns
the material as it brings it up, so not much can be
inferred. No vegetable or animal remains were seen,
nor any earth.
In the stone age landscape, perhaps 5-8,000 years ago,
there was an intensely settled, and well marked out
landscape of small settlements and established well
defined trackways. Burials generally took place in or
beside circular barrows, so possibly some of the circles
noted in the aerial photos and marked on the scale plan,
were “henge” sites, where religious ceremonies and
burials, even sacrifices may have taken place.
South Denes Power
Station
The Regent Road screw
piling machine, 11th
February 1993.
Cremation urns, and a fourth century Roman coin,
were found at Runham Vauxhall in brick earth in 1879.
As they then thought that this was below sea level,
this could not be explained. It was thought that the
sea level had been higher, whereas recent evidence
from London shows that it was then much lower. The
above is one of several instances of Roman artifacts
being found in an area that was said not to have existed
before a thousand years ago (erroneously thought to
have been under the sea).
On the left is an aerial photo of land east of Browston
Hall, showing a possible ring ditch, and associated
trackways and some rectanglar features. There are
similar crop-marks on high ground at Cantley, that
are thought by Derek Edwards
[xiii]
to represent a
Roman Villa site, although once again, there has been
no archaeological investigation. The Browston site is
currently thought most likely to have been an Eliza-
bethan garden. Comparison with the Roman Temples
excavated by “Time Team” at Friar’s Wash, west of
Harpenden, and north of St Albans, make further
investigation highly desirable.
Rumbelow and trackways near Browston
Left - Aerial photo of Browston Hall 1976, D Edwards,
copyright Norfolk Aerial photo unit, Gressenhall.
27