Table 37
Gray's Harbor
Gray's Harbor, Washington
Construction and Rehabilitation History
Date
1896
The Rivers and Harbor Act authorized construction of a single jetty
extending 18,000
seaward from the southerly peninsula at the mouth
of Gray's Harbor.
1898
Construction of the south jetty commenced.
1898-
Point Chehalis shoreline accreted and moved westerly a maximum of
1904
3,000 ft just south of the jetty.
The south jetty was completed to a height of
ft mllw and a total
1902
length of 13,734 ft, of which 11,950
extended seaward of the high
waterline. During construction, the adjacent channel undermined the
structure causing material overruns which depleted project funds
could be obtained. A groin was
before the design length of 18,000
constructed 11,952 ft from the high waterline.
Construction of the north jetty to a height of mean sea level
1906
ft mllw) and a length of 9,000
was authorized.
Construction of the north jetty commenced.
1907
The north jetty was completed to a length of 10,000 ft. An extension
1910
of 7,000 ft was authorized.
elevation of
ft mllw
The north jetty was completed to a
1913
with a total length of 16,000 ft.
ft mllw.
The north jetty was restored to
1916
the south jetty had subsided to
mllw at the shoreward
By
1933
end and -10 ft mllw at the outer end.
Reconstruction of the north and south jetties was authorized.
1935
A 12,656-ft section of the south jetty was reconstructed to an
1936-
elevation of +20 ft. The reconstruction blocked the supply of sand
1939
to Point Chehalis, causing serious erosion. A 32-ft section of the
jetty was removed to try to restore the supply of sand, but it was
quickly blocked by accretion south of the jetty.
The outer 900 ft of the south jetty was destroyed, and crest rock was
1939-
displaced over the next 2,656 ft.
1946
(Continued)
150
Previous Page
