Table 38
Indian River Inlet Jetties
Indian River Inlet, Delaware
Philadelphia District
Date(
Construction and Rehabilitation History
1939
Two parallel jetties were completed to provide inlet protection. The
jetties were 1,566 ft long and 500
apart. The shoreward
ft
and 890 ft of the north and south jetties, respectively, were con-
structed of steel sheet pile, and the seaward portions were con-
structed of stone. The stone jetties had a crest elevation of
mlw, a crown width of 10.0 ft, and side slopes of
(Figure 49).
Storm damages to the south jetty were repaired.
1956
The north jetty was repaired because of storm damages and was
1957
tended shoreward 320
because of shoreline recession and
deterioration of the sheet pile (Figure 49).
The jetty heads are in poor condition because of slope failure,
1985
sidence, and toe scour. Repair alternatives have been proposed, and
the use of dolosse has been suggested. Figure 50 is an aerial photo-
graph of the jetties taken in 1985.
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