Area 11 Bickley Wood Gorge
Summary of Landscape Character
-
Sheer gorge-like rock face and steeper
valley sides to west becoming broader and shallower
eastwards
-
Flat river margins along central
section
-
Railway with multi-arched red brick
support crosses western end of area and tunnel at western
end
-
Woodland on steep slopes and pasture on
lower gentle slopes
-
Few hedges, no longer stockproof.
-
Sandstone retaining walls along part of
river bank
-
Visible outcrops of Pennant Sandstone
along valley sides
-
The A4174 crosses the valley locally
introducing noise into otherwise tranquil landscape
-
Pylons to south of area intrusive from
certain viewpoints
Context
Introduction
7.11.1 This is the smallest of the character
areas at 1.6 km long by 0.2 km at its widest point. It is
characterised by the indented gently to steeply sloping hillsides,
or sheer cliff, which form a small straight narrow valley of the
River Avon cut into an undulating pennant sandstone plateau. It is
located in the extreme north-west of the area south of Hanham. It
forms part of a more extensive area beyond the River Avon to the
north and to the east including Cleeve Wood and the wooded gorge
within the Bristol City boundary to the north-west. The boundary to
the south is located where the top of the wooded slopes meets with
the pastoral land on the undulating plateau landscape of the Hicks
Gate character area.
Geology, Soils and Drainage
7.11.2 The characteristic geological formation
is Pennant Sandstone through which the River Avon passes in a
gorge. The course of the River Avon developed on younger rocks that
have subsequently been eroded. This would explain why the river now
takes this apparently unlikely course through the hard sandstone.
More recent alluvium occupies the narrow floodplain through the
area.
Principal Planning Designations
7.11.3 The whole of the undeveloped area is
within the Bristol/Bath Green Belt and the whole area is within the
Forest of Avon Community Forest.
Description
Landform and Drainage Pattern
7.11.4 This area comprises the north facing
side of a narrow valley containing the River Avon. It varies in
profile along the length of the character area. The land rises from
a level of 10m adjacent to the river up to 50m at the top of the
sheer rock face at the southern edge of the character area. The
valley is gorge-like at the western end, featuring a sheer rock
face and steeper valley side and becomes broader and shallower
eastwards where it meets the River Avon flood plain. The railway
cuts diagonally through the western end of the area at a point
where the landform drops from the dramatic cliff face to moderate
slopes. The shelved appearance of the lower landform at the western
end has been created to accommodate the railway line at the
required grade. The shallow to moderate slopes are undulating and
indented by small dry valleys. Some of the characteristically
indented landform of the hillside results from periods of quarrying
in the past. Mid-way along the character area a very narrow flat
margin at the river edge broadens out before narrowing again at the
eastern end where it is contained between the steep but low valley
side and the River Avon and floodplain.
Land-uses
7.11.5 The steeper parts of the character area
are covered in woodland. Fields on the gentler slopes down to the
river edge are used for grazing. A wider margin at the river edge
on the eastern half is owned by British Waterways Board who have a
building adjacent to the lock. Part of this neglected pasture is
used for ad hoc storage of materials. The valley historically
provided a source of pennant stone that was used in building and
was conveniently located for transporting it along the river.
Fields, Boundaries and Trees
7.11.6 The majority of the area is under
woodland cover. Its character varies throughout the area. The
steeper western half comprises a mix of young and middle aged
trees; the gentler slopes contain scrub and small trees with
occasional large mature to over mature oaks. The predominant
species is ash and other deciduous trees include oak and beech. No
evergreen trees were noted. Towards the west of the area Fox’s
Woods is registered as ancient semi-natural woodland.
7.11.7 The fields are bounded on the northern
side by an unmanaged hedge that is no longer stock-proof. Scrub is
colonising the pasture and the sloping grassed areas west of the
road-bridge. Some significant lengths of a dry sandstone wall are
evident at the base of the slopes of the middle part of the
character area, becoming less evident further eastwards. Parts of
the river edge have also been retained by local sandstone retaining
walls. The small and irregularly shaped fields originate from the
17th century enclosure of medieval deer parks for cultivation.
Settlement and Communications
7.11.8 Until the construction of the
A4174 in recent years this character area was quite isolated from
the road network. A single track ‘no through road’ at Durley Park
that passes under the A4 and railway ended at the eastern end of
the character area. There is no public vehicular access into the
area. Access is limited to private moorings and to British
Waterways Board who are responsible for the lock. Farm access
appears to be from the small industrial area adjacent to Chandos
Lodge at the end of Durley Park. The A4174 spans the valley and
allows glimpses of the dramatic gorge and the more open landscape
of the River Avon to the east. The design of the bridge is simple.
The horizontal section and the supports are fairly slender so the
structure is not overly dominant and an open view is maintained
along the valley beneath the bridge. Public rights of way within
the character area are limited to a footpath entering at the
eastern end of the area by the river and some 200 metres along the
riverside rising up the hillside and out of the area again.
7.11.9 The main railway line from London to
Bristol cuts diagonally through the western end of the character
area between the sheer rock face and the lower land, and then
follows the alignment of the river supported by a multiarched red
brick bridge. 300 metres from the boundary it enters a tunnel.
Trains are fairly regular, but they do not detract from the
tranquil experience of the valley, and apart from the bridge, which
is an interesting and distinct feature, other railway paraphernalia
is generally not visible from public rights of way.
7.11.10 The only building within the character
area is the British Waterways Board building at the lock. The wider
area is rural, surrounded by Keynsham and the suburbs of Bristol
and features clusters of traditional buildings, scattered farms and
large properties, converted to nursing homes or offices.
Traditional buildings are mainly constructed in the local Pennant
Sandstone with red clay roof tiles. Some buildings have been
rendered. The road-bridge is constructed in concrete, however part
of the steep banks beneath the bridge have been surfaced using the
local stone.
Landscape Characteristics
7.11.11 The dramatic hanging woods of the
gorge, the rock outcrops and features along the riverside such as
the small settlement at Hanham Weir and evidence of the mill
including a lock and other former industrial associations create a
very strong sense of place to this character area. Public rights of
way on the north bank close to river level and at varying heights
within the woodland afford characteristic views of the River Avon
and its dramatic woodland setting. The brick arched railway support
at the river edge is an interesting feature within the wooded
valley landscape. Large pylons just within the adjacent character
area to the south are discordant elements in the landscape when
seen from the higher level paths, but are less so from viewpoints
lower within the valley where trees dominate the views and partly
screen the structures.
7.11.12 The landform combined with meanders in
the river and woodland valley sides creates a strong sense of
enclosure across much of the character area. As the valley broadens
the views become more extensive across the floodplain to the
Cotswold hills in the distance. The A4174 Bristol Ring Road has
brought traffic noise to the area, however the general impression
is that it does not detract from the tranquil experience enjoyed
from public footpaths at the river edge and within the woodland on
the north side of the river, a major recreational route in the
area.
Landscape Change and Condition
7.11.14 The area has had periods of intense
quarrying activity in the past. The scars have now healed over with
woodland cover. The landscape generally appears to be in good
condition although in detail there are signs of neglect. Throughout
the western end of the character area, skyline trees are prominent,
but they appear sparse and rather neglected. None of the wooded
areas appear to be under management and ivy can be seen extending
close to the tops of the tree canopies. Some of the pasture is
being invaded with scrub and some of the hedges are ‘gappy’ and no
longer stockproof.