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Pirate Springs (MU 18/4 to 18/5)
The
hinterland at Pirate Springs is afforded a lower standard
of protection against flooding than elsewhere in the area.
The wall has a stepped concrete apron, at the same level as
the "lower apron" along the golf course frontage
18/3. The rear concrete wall at 18/4 is at a level of about
6.2mOD, dropping further to a
level of about 6.0mOD at 18/5 in the northern half of the
frontage. This means that there
is less than 0.5m of freeboard at the 200 year water level
and hence little protection against even moderate wave action
if beach levels fall. At present renourishment is shared between
here and the Littlestone-on-Sea frontage to the southward.
The renourishment volume for both frontages varies between
2000 and 5000m3 pa. On the day of inspection
(29/8/98) beach levels at the wall toe were considerably lower
than on any part of the frontage to the southward with a large
expanse of concrete steps exposed.
The
jointing in the rear wall has no sealant giving large gaps
between rear wall sections. Also there has been serious abrasion
of the concrete steps. The shingle beach is at a lower level
in this area and much of the wave energy is dissipated on
the stepwork.
North
of TR09012700 the concrete pavement has been resurfaced. The
low wave return wall, however, is extensively cracked and
spalled at the joints and there are horizontal cracks indicating
landward displacement. The concrete steps near the junction
with the new concrete wall to the north (St Mary's Bay 18/6)
are badly abraded and extensively spalled.
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