20131279 Ver 3_Dredge Work Update_20200526

From: Ken Willson
To: Coats. Heather; Dunn. Maria T.; Spivey, Kelly; Pelletier, Josh R CIV CESAW CESAD (US); Scarbrauah. Anthony
Cc: Brad Rosov; Brent Johnson (Brent.johnson(cdarenc.com); Winslow. Lancelot D
Subject: [External] RE: Hatteras Inlet - South Ferry Channel - Update
Date: Tuesday, May 26, 2020 11:12:19 AM
Attachments: imaae001.ona
Hatteras Inlet South Ferry Channel Plan View 2020-05-20.pdf
External email. Do not click links orattachments unless you verify. Send all suspicious email as an
Lattachment to reaort.spamPnc.gov
ME
Please find attached the updated plans discussed on our pre -construction call on May 11. The
updated plans show the survey data collected by DOT within the channel on May 6, 2020. The cross
sections shown on sheet 4 of 4 also indicate that DOT intends to dig to the max depth allowed by the
permit, which is -12.0 MLLW or -11.92 MLW. The total volume above the -12.0 MLLW within the
channel has been computed to be approximately 141,000 cy. Please note that it is not the DOT's
intention to remove all of the volume in the channel above the -12.0 MLLW, but rather to cut a
channel across the most heavily shoaled areas of the channel.
The dredge continued work throughout the weekend. We will provide another update at the end of
the week.
Please feel free to contact me with any questions.
Kind Regards,
Ken Willson
Senior Project/Program Manager
Main: 910-399-1905
Mobile: [phone]
kwillson(@coastalprotectioneng.com
Coastal Protection Engineering
4038 Masonboro Loop Road
Wilmington, NC 28409
From: Ken Willson
Sent: Friday, May 22, 2020 4:04 PM
To: Heather Coats <[e-mail]>; 'Dunn, Maria T.' <[e-mail]>;
'Spivey, Kelly' <[e-mail]>; Pelletier, Josh R CIV CESAW CESAD (US)

<[e-mail]>;'Scarbraugh, Anthony' <[e-mail]>
Cc: Brad Rosov <[e-mail]>; Brent Johnson ([e-mail])
<[e-mail]>; 'Winslow, Lancelot D' <[e-mail]>
Subject: RE: Hatteras Inlet - South Ferry Channel - Update
ME
I'm writing to provide you an end of week update on the progress of the South Ferry Channel
maintenance dredging. As previously stated, dredging began on May 15. The dredge was shut down
on Monday for weather associated with Tropical Storm Arthur and on Weds and Thurs for
maintenance. The dredge is back up and running today and is making progress.
We will be able to provide the updated plan drawings on Tuesday of next week at which point, I'll
provide another update.
If you should have any questions, please feel free to reach out to any of the following:
Ken Willson — [phone]
Brent Johnson — [phone]
Lance Winslow— [phone]
Kind Regards,
Ken Willson
Senior Project/Program Manager
Main: 910-399-1905
Mobile: [phone]
kwillson(@coastalprotectioneng.com
Coastal Protection Engineering
4038 Masonboro Loop Road
Wilmington, NC 28409
From: Ken Willson
Sent: Monday, May 18, 2020 8:37 AM
To: Heather Coats <Heather.coats(@ncdenr.gov>; Dunn, Maria T. <maria.dunn(cDncwildlife.org>;
Spivey, Kelly <kelly.spive)1(@ncdenr.gov>; Pelletier, Josh R CIV CESAW CESAD (US)
<Josh.R.PelletierPusace.army.mil>; Scarbraugh, Anthony<anthony.scarbraugh(@ncdenr.gov>
Cc: Brad Rosov <brosovPcoastalprotectioneng.com>; Brent Johnson (Brent. johnson(@darenc.com)
<Brent.*oh nson(@darenc.com>; Winslow, Lancelot D <Iwinslow(cDncdot.gov>
Subject: Hatteras Inlet - South Ferry Channel - Update

UN
I am writing to inform you that maintenance dredging operations of the South Ferry Channel near
Hatteras Inlet began on Friday (May 15). Dredge operations are being conducted with the NC DOT
pipeline Dredge Monteo. The work is being done under Dare County's Dept. of Army Permit SAW-
2016-02140 and CAMA Major Permit 129-16. We are waiting to receive pre -construction survey
data from the INC DOT to update the plan drawings. We hope to be able to provide those updated
plans this week.
Please let me know if you have any questions.
Ken Willson
Senior Project/Program Manager
Main: 910-399-1905
Mobile: [phone]
kwillson(@coastalprotectioneng.com
Coastal Protection Engineering
4038 Masonboro Loop Road
Wilmington, NC 28409

HATTERAS INLET MAINTENANCE PROJECT
DARE COUNTY, NORTH CAROLINA
PAMLICO SOUND
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HATTERAS
HATTERAS
OCRACOKE "* INLET
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PROJECT AREA
ATLANTIC OCEAN
0 7500 15000
GRAPHIC SCALE IN FT
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CAPE HATTERAS
CHARLOTTE N GPI �_
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—JACKSONVILLE• MOREHEAD CITY
CAPE LOOKOUT
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NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
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1. COORDINATES ARE IN FEET BASED ON NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
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DATUM 1983, (NAD83)
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2. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DREDGE DEPTH IS RELATIVE TO THE MLW DATUM BEING
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APPROXIMATELY 0.08' ABOVE MLLW PER NOAA PID EX0400.
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3. DATE OF AERIAL PHOTOGRAPHY: CS-1 AND PV-1 ESRI JANUARY 2016, PV-2 NCDOT HATTERAS IMAGE MARCH 2O16.
4. SURVEY DATA COLLECTED BY US ARMY CORPS OF ENGINEERS. APRIL 07, 2020 AND NC DEPT. OF
TRANSPORTATION, MAY 06, 2020.
5. BATHYMETRIC CONTOURS REPRESENT THE CONDITIONS OF THE CHANNEL ON APRIL 07 AND MAY 06, 2020 AND
SHOULD NOT BE RELIED ON FOR NAVIGATION PURPOSES.
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LEGEND
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—••—••— MEAN LOW WATER LINE
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STATION ID 8654467 EPOCH 1983-2001"
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SHEET 1 OF 4

IN 547000
N 542000
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COORDINATE TABLE
POINT ID
EASTING
NORTHING
ELEVATION
a
2962099.1
540630.2
-9.0
b
2962146.3
540435.8
-9.0
c
2963878.3
540856.0
-9.0
d
2966087.0
540753.7
-9.0
e
2966096.3
540953.5
-9.0
f
2963858.9
541057.1
-9.0
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GRAPHIC SCALE IN FT
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NOTE:
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DPAWING NO.
PERMITTED DREDGE DEPTH IS RELATIVE TO
THE MLW DATUM BEING APPROXIMATELY
PV-2
0.08 ABOVE MLLW PER NOAA PID EX0400.
SHEET 3 OF 4

I NOT FOR CONSTRUCTION
i FOR REGULATORY REVIEW ONLY
CROSS SECTION A -A'
A
B-B'
C-C'
A'
5
5
MHW EL. +0.52'
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MLW EL. +0.08'
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MAY 6, 2020
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MAXIMUM AD EL.
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-20
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-20
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-25
-250
0 500
1000 1500 2000
2500 3000 3500
-25
4000 4500
DISTANCE ALONG SECTION (FEET)
a
a
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CROSS SECTION B-B' CROSS SECTION C-C'
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EXISTING GRADE w EXISTING GRADE
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-15
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CHANNEL MAXIMUM AD EL. =-11.92' MLLW w CHANNEL MAXIMUM AD EL. _-11.92' MLLW
° z
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WIDTH 200' w WIDTH 200'
z u° z cn
-20
-20 -20 -20
zz
0
H
N H U U
}Qzow
-25-750
25
25-25-750
wZLuo
-500 0 500 750 -500 0 500 750
a Z g z u
DISTANCE ALONG SECTION (FEET) DISTANCE ALONG SECTION (FEET)
a ne n
Wa
NOTE:
a
1. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DREDGE
DRAWING NO.
DEPTH IS RELATIVE TO THE MLW DATUM BEING
0 5 10 0 250 500
APPROXIMATELY 0.08 ABOVE MLLW PER NOAA PID EX0400.
XS-1
2. MAXIMUM AD EL. OF -11.92 MLLW SHOWN ON CROSS SECTIONS VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT
IS EQUAL TO -12.00 MLW PER NOAA PID EX0400.
DATE
SHEET 4 OF 4