Table 1
6
Seldovia Harbor
Seldovia, Alaska
Construction and Rehabilitation History
The original project authorized removal of obstructions in the
1945
entrance channel.
1958
The basin was authorized, including dredging a 700- by 300-ft basin
mllw and constructing a 400- and a 600-ft breakwater.
to -12
1961-
The project was completed. The 400-ft north breakwater had a crest
elevation of +28 ft mllw, crest width of 6 ft, side slopes of
1962
and was constructed of a gravel core covered with a minimum 2-ft-
thick layer of quarry spalls. It was covered with a 5-ft-thick layer
layer of
of armor rock on the crest and bay sides and a
Class
rock on the bay side. The 600-ft detached south breakwater
mllw, crest width of 6 ft, side
had a crest elevation of +25
slopes of
and was constructed of a gravel core covered with a
minimum 2-ft-thick layer of quarry spalls and a
layer of
rock.
Class
The basin subsided 3.8
in an earthquake. The breakwaters were
1964
repaired with a 7.5-ft-thick layer of rock on the basin side and a
4-ft-thick layer of armor rock on the crest, raising the crest eleva-
tions 0.2 ft over the original design heights, and widening the
crests to 8 ft. The repair work required a total of 26,877 tons of
stone. Cross sections of the rebuilt breakwaters are shown in
1985
There have been no reports of
the harbor is presented in Figure
needed repairs or rehabilitation since 1964.
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