Table 1 3 (Concluded)
Construction and Rehabilitation History
Date
A survey in May showed crest heights of
to
ft mlw and
1937
to
ft mlw for the north and south jetties, respectively.
A survey of the south jetty in December showed crest heights from
1945
to
ft mlw.
At present, a 40-ft-deep by 400-ft-wide channel between the jetties
1985-
A
is maintained by the Navy (the Federal project depth is 32
1987
contract has been awarded to sand-tighten the landward 1,500 ft of
the south jetty. (As of 17 Aug 87 the job had not been completed.)
Plans call for removal of the existing jetty to -5 ft mlw, placing
an impermeable core of precast concrete sections (inverted Y-shape),
ft mlw using 8-ton
and rebuilding to a crown elevation of
(maximum) armor stone.
Fernandina Harbor jetties, Florida
Figure
40
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