Construction and Rehabilitation History
Date
1978-
3-stone-wide ocean-side toe protection. The crown width and eleva-
were 2 1 and
ft mlw, respectively. Side slopes on the
1980
(Cont)
and
for the trunk and head sections, respec-
jetty were
tively. Armor stone size for the inner trunk section was determined
using Hudson's stability equation and design wave height of 10.1 ft.
The cost for construction of the south jetty was ,614,000.
Dredging to centralize the ocean entrance channel was accomplished
1981-
in early 1981. Subsequent bathymetric surveys were taken in April
1984
1 9 8 1 and August 1984. The surveys showed that, in general, the
basic pattern was one of scour occurring along the central zone be-
tween the jetty structures and deposition along the bottoms adjacent
to the structures and inlet gorge. In effect, the basic functional
purpose of the dual jetty system had been attained as a result of
the south jetty construction.
Presently, the south jetty is in good condition; whereas, the north
1985
jetty, which was constructed of smaller size armor stone, is in need
of repair work in several areas showing localized armor stone
damage.
(Sheet 4 of 4 )
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