Table 3 (Continued)
Construction and Rehabilitation History
The damaged west breakwater trunk was repaired by placement of two
1969
layers of 19-ton reinforced tribars (260units) on the sea-side
shoreward of the tetrapod area (Figure
A concrete rib
cap was added to the crest for buttressing of the tribars. The
total. cost was 3,000,
1969 another severe storm hit with estimated breaking
In
wave heights of 15-20 f t ; damaqe occurred to the west breakwater
i
n
tribar-original armor stone t r a n s i t
area,
of insufficient interlockinq. Approximately 25 19-ton
shoreward as much as 300 ft.
were
The November 1 6 damage was repaired by placement of 8
99
0
1973
tribars (Figures5 and
The tribars and concrete
ribs were extended shoreward another 80 ft down the seaside
west breakwater trunk, and the landward end of the tribar
of
section was buttressed
units. The total
25
cost was 2,000.
A 1973 breakwater inspection indicated
damage and
17
97
settlement of the 33-ton tetrapods on the seaward quadrants of
both breakwater heads. In addition, the 8-ton
stone along
1 7 the
97
both trunks was failing and required repair.
on the west break-
following repairs were completed (Figure
water, 257 30-ton reinforced dolosse were placed
two layers
over the 33-ton tetrapods on the sea-side quadrant of the head;
291 20-ton reinforced dolosse were placed on the sea-side slope of
on the east breakwater 6 1 U 30-ton
forced dolosse were placed in two layers over the 33-ton tetrapods
on the sea-side quadrant of the head;
20-ton
a double layer on the sea-side s l o p e , of the
dolosse were placed
beginning at the shoreward
of the 35-ton tribars; and,
at the
where the 20-ton
ended and extending
shoreward,
(455units)
were placed on the sea-side slope of the east
trunk.
The
cost was ,290,000.
was completed i a effort to
n n
The
recent
eliminate the need for future
repairs to the
the west breakwater,
was
waters.
to sta
(head
on the harbor-side slope from
.,
Between s t a
at
and
laced on the
sea-
side slopes, respectively. Also in this section the concrete rib
cap was c o n s t r u c t e d , and at sta
the 11-ton seaside tribars
(Continued)
(Sheet4 of
22
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