intended to direct the channel through a break in a rocky reef located
4,000 ft offshore.
108. Authorization was given in 1919 to restore and extend the jetties.
In 1921, the south jetty was extended to 5,800
and an 800-ft spur dike and
five groins were added to the channel side of the jetty. Work on the north
jetty was completed in 1930 with the jetty extended to 3,700 ft.
109. The southwesterly orientation of the jetties exposes the north
jetty to broadside attack by waves from northwest storms. The north jetty has
accordingly required frequent rehabilitation, with major work performed during
1933 to 1934, 1939 to 1940 (including extension to 4,700 ft), 1956, 1966
(including extension to 7,000
and 1977 to 1978. The 1977 work included
blasting to
the jetty to reduce littoral transport through the
structure.
110. The south jetty was restored during 1933 to 1934, and extended
1,800 ft in 1969.
1 1 1 . Two pile, timber, and stone breakwaters were built in the bay in
to protect a small-boat basin at Newport, Oregon. The main detached
breakwater was 2,650 ft long; the shore wing was 400
long. Both break-
waters were constructed to +14 ft mllw. A second marina was constructed in
at Southbeach, Oregon. The marina was protected by a 1,800-ft west
breakwater and a 700-ft north breakwater. Both Southbeach Marina breakwaters
were of rubble-mound construction with a crest elevation of +14
mllw and
crest width of 10 ft.
112. The south jetty and the breakwaters are currently in good con-
dition. The outer 400 ft of the north jetty has deteriorated, and studies are
being conducted to rehabilitate the structure. A chronology of events related
to the development and repair of the jetty and harbor structures is given in
Seattle District
Anacortes Harbor, Washington
113. Anacortes is located on Fidalgo Island on the east side of Puget
Sound. The project includes a 2,850-ft-long channel in Capsante Waterway and
a mooring basin protected by two pile breakwaters.
114. The project was adopted in 1919 and modified in
to include
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