ERDC/CHL CHETN-IV-61
December 2003
EXISTING SPUR JETTIES: Spur jetties have been constructed at Bakers Haulover Inlet, FL
(Figure 5a), Ft. Pierce Inlet, FL (Figure 5b), at Siuslaw River Inlet, OR (Figure 5c), and Shark
River, NJ (Figure 5d). The north jetty at Bakers Haulover Inlet (Figure 5a) shows a spur placed
at the end of the jetty. The south jetty at Bakers Haulover (Figure 5a) also appears to be a form
of spur due to its outward flare. The shoreline response on both sides of this inlet is similar. Note
that the spur at Ft. Pierce (Figure 5b) is on the downcoast side of the inlet where the shoreline is
offset landward from that of the shoreline at the top of this figure. Its construction was associated
with a beach-fill project placed on the south beach (bottom portion of the photo) and prevents
beach fill from moving into the navigation channel.
b. Fort Pierce, FL
a. Bakers Haulover, FL
d. Shark River, NJ
c. Siuslaw River, OR
Figure 5. Examples of jetty spurs
The spurs at the Siuslaw River were designed to divert sediment back to the beach on both sides
of the jetty system. A monitoring study of this project by Pollock et al. (1995) indicated that spur
implementation onto the existing jetties was successful in reducing channel maintenance signifi-
cantly. The Shark River spur is associated with a beach fill on the downcoast side of the inlet.
The beach extends to the spurs' connection with the jetty.
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