Table 33
Anacortes Harbor
Anacortes, Washington
Date( s )
Construction and Rehabilitation History
1919
The channel project was completed.
1954
The project was modified to include the boat basin and two pile
breakwaters. The project originally called for just the 370-ft-long
southeast breakwater. The south side of the harbor was protected by
l o g booms owned by a local mill. With the closure of the mill, the
log booms were removed, and the south breakwater (350 ft) was
required.
Construction of the pile breakwaters was completed. The breakwaters
1957
were constructed of treated timber pilings that were 1 in. in diam-
4
eter, with a minimum penetration of 1 ft, reinforced with 8- by
6
10-in. wales. A seven-pile dolphin was constructed at the Capsante
Waterway end of each breakwater. A cross section of the breakwaters
is shown in Figure 66.
During a storm in November 1957, the breakwaters were seen to provide
inadequate protection against storms from the southeast. The break-
waters left a 100-ft wide channel for the Capsante Waterway.
The Seattle District and the North Pacific Division recommended ex-
1958
tension of the breakwaters, but federal funds were unavailable. The
Port of Anacortes therefore extended the south breakwater to 440 ft
(total length).
1964
Both breakwaters were extended to 470 ft. The extensions were in the
Capsante Waterway. To provide greater stability in the deeper waters
of the waterway, the toes of the extensions were protected by a rock
cover with a gravel and spalls blanket to a depth of -6 ft mllw and a
top width of 8 ft.
Both breakwaters were rehabilitated by cleaning and treating the pile
1976
heads or replacing the piles.
1982
The mooring basin was enlarged by the Port of Anacortes.
The harbor is illustrated in Figure 66. There have been no reports
1985
of needed repairs or rehabilitation since 1976.
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