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Read the following report for
much more information about the
Law and the
Geology of a Changing Shoreline,
March 2006, updated to include section on poor beach and dune
A Packery Channel and
The Dredge Report, a site about Packery
Observations on Saturday
Saturday, January 7, 2006 I flew over Packery Channel. The
was working nearly out as the end of the north jetty.
surprised me, since the jetty still needs to be extended 500 feet and
sand will continue to enter the channel from the second bar which is at
the present end of the north jetty and from the third bar which is well
beyond the end of the north jetty. It seems wasteful to do
dredging before the jetty is at its finished length. Angel
Escobar, the director of engineering for the City of Corpus Christi
informed me that the Corps of Engineers directed that the channel be
dredged at this time and that the jetty should be at its finished
length by the end of March. At that time, they will re-dredge
remove any new infill. As you can see from the fourth picture below,
there is a
bar which is beyond even the finished length of the south jetty and it
will pump sand into the channel during heavy surf conditions.
has begun on the
channel and spoil has been deposited in the bulge just south of the
jetties and is being deposited in a second bulge just in front of the
condominium farthest to the south. Surf is light and the wind
from the northwest at about 15 knots.
This shows the nearly
south jetty. There is a walkway between the "high" rocks on
side of the center of the jetty. If they pour a concrete
that is where it will be placed.
that under strong southeast
wind conditions that the surf is breaking hundreds of feet offshore of
the end of the south jetty which is at its completed length.
outer bar is at or beyond the end of the south jetty.
such as these will pour huge quantities of sand into a bar inside of
and outside of the entrance of the jetties. Even when the
jetty is completed, the jetties will be far too short to keep sand out
of the entrance and far too short to provide navigational safety.
The wind was from 160 degrees at 20 knots gusting to 27 knots.
Notice that the third bar
barely breaking and is sweeping toward the end of the south jetty.
Notice the third bar is
at the same distance offshore as the end of the south jetty.
south jetty is at its finished length.
Third bar beaking near the
the south jetty.
Note how close the third
breaking to the end of the south jetty. This bar will soon be
pouring sand into the entrance whenever the SE winds are blowing hard.
The second bar is at the
end of the north jetty. You can
faintly see a third bar sweeping almost to the end of the south jetty.
Note that it looks like
there is an outer bar on the right side
of the red lines that is sweeping nearly to the end of the south jetty.
Note the sand waves filling
the channel. it appears that
they have their slipfaces to the right indicating that they were
deposited by inflowing currents.
Sand waves filling channel.
Note the slope failure of the
revetment just to the right of the north (near) jetty.
The next three photos were taken on 8/2/2005
Note that the south jetty
is being extended.
Extensive shoaling was noted inside of the jetties alongside of the
north jetty and the shoals looked like they were covered with sand
waves. The light was not sufficient to get a photo of those
shoals. A bit further south we could barely see an outer bar
beyond the prominent bar which impinges on the outer south jetty, but
it was too dim in the existing light and water clarity to photograph.
Emily Opened Packery 7/22/05
Be careful, there is a
bar inside of the entrance.
Hurricane Emily opened Packery
Channel in July, 2005
Hurricane Emily Landfall
Packery Jetties 7-22-05
Packery Channel 6/16/05 from 6500 ft.
Note that the outer bar
which is about 800 ft offshore at Bob Hall Pier has already moved
offshore and is sweeping around the south jetty of Packery Channel.
This bar breaks heavily when the surf is up. There
a huge amount of sand transported along this bar and dumped into the
mouth of Packery Channel. It will likely produce a shallow
breaking bar in or just offshore of the mouth of Packery a short time
after the pass is completed.
Packery Channel 6/14/05
Packery Channel 2/22/2005
Packery Channel 2/22/2005