Table 48
Westhaven Cove Small-Boat Basin
West Port, Washington
Construction and Rehabilitation History
The Port of Gray's Harbor dredged a small-boat basin in Westhaven
Cove.
Reconstruction of the south jetty at Gray's Harbor blocked sand
transport to Point Chehalis causing severe erosion.
1948
The project was adopted.
West Port Marina breakwaters A and B were constructed of treated wood
1950
pilings with a top elevation of +17 ft mllw and a minimum penetration
of 5 ft. Rock reinforcing was placed along the breakwater to an ele-
mllw, with the crest extending ft on each side.
vation of
Creosoted
by 12-in. planking was placed along each side of the
and -0.5
breakwater between elevations
mllw.
Breakwater A was reinforced with rock and planks.
1953
Extension to the marina was recommended. Additional planks were
installed on breakwater A.
1958
The Port of Gray's Harbor closed the opening between breakwaters A
and B to lessen the effect of westerly swells entering the basin,
The Corps constructed breakwater C with a design similar to that used
in breakwaters A and B
except that every twelfth pile was
driven to a minimum penetration of 1 ft. A seven-pile dolphin was
5
constructed at the harbor entrance end of the breakwater with a
minimum penetration of 1 ft for each of the piles.
0
Gaps of up to in. between the pilings of breakwater C allowed an
unacceptable level of wave energy to enter the basin. The breakwater
by 12-in. planking between the
was therefore modified by adding
top of the rock pile at
ft mllw and the bottom of the
by
12-in. wales at elevation
ft mllw.
The closure breakwater was constructed.
1973
1978
Further extensions to the marina were recommended.
Extensions to the present design were completed. An existing
1979
breakwater attached to breakwater C was removed, an 865-ft extension
to breakwater C was constructed, and a 200-ft stub breakwater was
constructed. The extension to breakwater C was constructed of timber
pile with a rock toe, with a 200-ft rubble-mound section to reduce
wave reflection back to a commercial pier. Crest elevation was
+17 ft mllw.
(Continued)
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