Table 1 1 (Concluded)
Construction and Rehabilitation History
Landward sections on the channel sides of both jetties had scoured
and lost blanket stone, allowing the outermost cover stones to shift,
resulting in exposure of interior core and blanket stone. These
sections were located where the bedding apron was 2 ft wide. The
seaward side of the north jetty had a 10-ft-wide bedding apron and
the south jetty, which had a 2-ft apron, was accumulating sediments
along its seaward side. The exposed section varied in width from 6
to 1 ft on the south jetty and 2 to ft on the north jetty.
Repairs were made to the jetties using 2- to
cover stone and
resetting existing cover stone. Repairs were made also to sections
of the channel revetment using 0.5-in. to 200-lb blanket stone and
cover stone. A total of 10,420 and 5,900 tons of cover
and blanket stone, respectively, was placed (about 3,800 tons of
cover stone used on the jetties) at a total cost of 1,000.
The shore ends of the jetties and adjacent shore protection received
minor damages due to the passage of Hurricane Beulah in 1967.
Repairs were made in 1968 using 780 tons of stone and resetting
existing cover stone at a total cost of ,900.
The jetties were inspected and found to be in good condition, with
the exception of some damage at their heads. The landward end of the
south jetty was flanked by a channel maintained by tidal flows.