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Okaloosa County BOCC — February 11, 2013 — reading text
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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6.2.a
Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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6.2.a
Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“Q. And so where is the sand that's being
transport sand from that R17 area going?
A. Most likely into the inlet.
Q. Into the inlet itself?
A. Right.”
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6.2.a
Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“It has been determined and accepted that
the littoral drift in the Panhandle area is
from east to west. This being the case,
Okaloosa Island beaches are giving up
sand daily which is redistributed along
the beaches on Eglin property.”
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
The Theories
Seawall below MHWL – Jan 31, 2006
Transport reversal – Feb 19, 2007
Hurricanes – Feb 12, 2009
Localized Accelerated Transport
The evidence and ramifications
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
Where's the bulge? Why dredge?
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“Since it is just a study and we are running
out of time, we could perhaps pick one
and go for it, but I would like to make
clear that this calibration is not one we
should be very talkative about, the
large deposition in the ebb shoal and the
amount of scour in the channel are very
different from the observed patterns
and this makes me a bit nervous,
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
if there was time I would suggesting
trying a lot more to make things look
better. Again, since it is a study, and
we will be focusing on relative changes
in inlet management practices I believe
the model is suited to meet the project
goals, but if a skeptical type gets
their hands in this calibration that
can be quite harsh on us.”
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“Q. So you changed the calibration of these
little hot spot areas --
A. Yes.
Q. -- from .29 millimeters to 2 millimeters
without any data to support it?
A. That's correct.
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
So why is East Pass so different?
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
If all this sounds familiar....
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
Self fulfilling prophesies
compound errors.
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
Collateral Damage
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
Conclusions
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“The U.S. Army Corps of Engineers
determined in studies in 1983 to 1992...that
sand no longer enters the East Pass inlet.”
14
2,379,753
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6.2.a
Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
“The materials that are maintenance-dredged
originated in the Appalachian Mountains
and are transported down the river systems
into Choctawhatchee Bay and from there
through the East Pass inlet into the Gulf of
Mexico.”
3, 5, <1
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
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Attachment: David Sherry Presentation (1534 : Visitor - Revised East Pass Inlet Management Plan)
6.2.b
From: David Sherry [beach_boy_dave@yahoo.com]
Sent: Friday, March 22, 2013 8:19 AM
To: Don Amunds; Jim Curry
Subject: Request to be a Visitor at April 16 BCC meeting
Attachment: David Sherry - BCC Appearance Request (1534 : Visitor - Revised East Pass Inlet Management Plan)
Chairman Amunds and Mr. Curry,
I would like to be scheduled as a visitor / guest speaker at the 6 PM April 16 BCC
meeting. My topic is Revised East Pass Inlet Management Plan.
Please confirm, and