Table 37 (Concluded)
Date(
Construction and Rehabilitation History
of the north jetty, shoreward of the high
The inner 7,300
waterline, had sanded in.
The north jetty was reconstructed to +20
mllw for 7,760
seaward
of the high water shoreline, then +30
1942
mllw for an additional
528 ft. The 412 ft seaward of the reconstructed section was at mllw
and was not restored.
The outer 325 ft of the north jetty was leveled, and 400 ft of the
reconstructed section was lowered ft below grade.
1949
ft of south jetty was destroyed, and the next
An additional
4,100 ft subsided 10-20
below grade.
1951
of north jetty was leveled, and a 1,000-ft
An additional 325
section was lowered to 10 ft below grade.
1953
WES.
A hydraulic model study was conducted by
1952
An additional
of south jetty was destroyed, and the next
4,500 ft subsided to 18-20
below grade.
1953
of south jetty subsided to depths of approxi-
An additional 1,700
mate mllw, leaving less than 5,000 ft of the jetty near grade.
1962
Only 2,000 ft of the reconstructed portion of the north jetty
1961
remained at or near grade.
1966
The south jetty (4,000 ft) was reconstructed to
ft mllw.
A hydraulic model study of Gray's Harbor was conducted.
1971
A 6,000-ft length of the north jetty was rehabilitated.
1976
The harbor and cross sections of the jetties are illustrated in Fig-
1985
ure 70. The outer 1,200 ft of the north jetty and 5,600 ft of the
south jetty are submerged. There is some deterioration of the south
jetty, with severe scour along the channel side toe of the jetty.
The overtopping conditions on the north jetty in the area of the
rehabilitation work threatens a roadway on the land side of the
jetty.
151
Previous Page
