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Walton-on-the-Naze
12 September 2010
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Walton-on-the-Naze index |
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The northern end of the
protected zone at Walton, at low water (0.1metres) and showing the
difference in exposure along the defended foreshore. On the left the
beach has been severely depleted, whilst the right-hand shot show
relatively healthy beach accumulation. |
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A concrete groyne,
immediately to the north of the Mabel Greville groyne, has been
damaged at its seaward end. |
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The beach has also dropped
in front of the Tower, and is only accessible for less than half the
tidal range nowadays. |
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The first embayment
has been eroding, with slumped materials now at the beach and
being removed by wave action. These beach cliffs of rubble,
often faced with clay, are increasingly high. On the right, a
drainage stream carves a gorge and braided section. |
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Pushing out over
the beach are mobile flows from the first embayment north of the
protected coastline, left and centre, whilst the headland
between 1st and 2nd embayments, right, is about to collapse ...
see photo 3357! |
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Exceptionally low
water meant you could look back on the cliffs from an improved
perspective, and appreciate the extent of the wave-cut platform.
At Walton this platform is of London Clay. |
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Views of the 1sr
embayment beneath the Tower and cafe, and, centre, towards
Felixstowe and its cranes. |
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WW2 pillboxes
provide an accurate indication of cliff recession, left. The
slumps and mobile flows provide ever-higher beach cliffs. On the
right the clay has dried and cracked like cooling basalt ... but
not as hard! |
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A slump reaches the
beach. |
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The pillboxes
litter the clay plains at low tide. |
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Concentrating on
the drama of pillboxes, cliffs and the Tower, almost caught me
out, as the tide was turning, right! |
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Retreating to
shore, just 100m away, the removal of material from embayment 2
is very evident. |
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Where clay is left
in place, the sands and vegetation mantle easily slips off
seaward. |
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Back to the Tower,
via the steps. These shots were taken from just above the rip
rap. |
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From the
middle-level greensward, an excellent observation platform, the
cliffs that back onto the steps is dominant, as is the view to
the north, with the whole gamut of features inside the landslip. |
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Ridges and valleys
punctuate the rotational slide, that has also elements of mobile flow,
and an increasing free-face beneath the embayment rim. |
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Free-face of the
receding cliff-line and the footpath and steps beyond. |
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The northern side
of the 1st embayment, where slumping is less organised that in
the centre .. left hand shot. |
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The slumping has
left an increasingly high cliff face; at one time it was
possible to jump off onto the fallen blocks. |
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The second
embayment has much better defined rotational slumps, and a
headland that is showing five fault lines ... having crossed two
to take a photo of the last three! |
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Blocks gliding down
in the 2nd embayment, and in the centre its relationship with
the position of the Tower. |
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Walton-on-the-Naze
Mabel Greville Breakwater Tower coasts cliffs
erosion beaches groynes clay sand defences mobile
slides rotational slumps wave cut platform concrete blocks
pillboxes tourism beach huts |
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