129-16 Project Update 01/29/2019

M
APTIM
January 29, 2019
David Bernhart
NMFS — Protected Resources Division
263 13th Avenue South
St. Petersburg, FL 33701
Subject: Hatteras Inlet Project Report (USACE Action ID. SAW-2016-02140)
Dear Mr. Bemhart:
Kenneth Willson
Program Manager
Aptim Coastal Planning & Engineering of North
Carolina, Inc.
4038 Masonboro Loop Road
Wilmington, North Carolina
Tel: [phone]
[e-mail]
This letter serves as the project report required by special condition #24 of the above referenced permit, which allowed
Dare County to conduct maintenance dredging within the Connector Channel Corridor located between Ocracoke
Island and Hatteras Island, North Carolina. Special condition #24 requires that a project report summarizing the results
of the dredging and the sea turtle take (if any) be submitted to NMFS within 30 working days of completion and that
the reports shall contain information on project location, start-up and completion dates, cubic yards of material dredged,
incidental takings (include photographs, if available) and sightings of protected species, mitigating actions taken,
screening type (inflow, overflow) utilized, daily water temperatures, name of dredge, names of endangered species
observers, percent observer coverage, and any other information the contractor deems relevant
Project Description:
On December 16, 2018, the US Army Corps of Engineers (USACE) operated Special Purpose Dredge Currituck began
dredging in the Connector Channel/South Ferry Channel in the vicinity of Hatteras Inlet. The Dredge Currituck
conducted maintenance dredging in the channel for four (4) days through December 19. Following a short break for
the Christmas holiday, the Dredge Currituck resumed operations on December 29 and conducted maintenance dredging
of the channel through January 2, 2019. Due to scheduled maintenance requirements and other scheduling factors, the
USACE pulled the Dredge Curitrrck from the project and replaced it with the Special Purpose Drrdge Murden . The Dredge
Murdeu arrived on site January 4 and completed dredge operations on January 14.
During the first 4 days of dredge operations, the Dredge Currituck utilized the temporary disposal site approved by state
and federal agencies. Material placed in the temporary disposal site was later removed and disposed of in the offshored
disposal area.
The Wilmington District USACE provided hydrograpbic survey charts showing the pre -construction (December 12,
2018) and post -construction Qanuary 15, 2019) depths in the channel. These maps are included as an attachment to
this letter (Attachment 1 — Connector Channel Maps). A comparison of the pre -construction survey conducted on
December 12, 2018 and post -construction surveys conducted on January 15, 2019, indicated that approximately 20,000
cubic yards of material was removed from the channel and associated side slopes. The removal of the material resulted
in controlling depths of approximately -8 ft mean lower low water (MLLW) through the South Ferry Channel. The
resulting channel is approximately 150 feet wide.
DGM WILMiNGTON, NO
JAN292019

Mitigation Actions and Observations:
No dredge operations associated with this event occurred between April 1 and September 30. The goal of the December
2018/January 2019 maintenance event was to establish a more direct channel orientation to the inlet gorge cutting across
a linear shoal and establishing an approximately 8 ft deep channel with bottom width of approximately 150 ft.
APTIM staff coordinated closely with both NC DCM and USACE regulatory staff on the progress of the project. In
accordance with the permit, construction activities complied with the "Guidelines for Avoiding Impacts to the West
Indian Manatee". Furthermore, the project did not place any material above the MLW to avoid impacts to federally
listed Seabeach Amaranth, Piping Plover, Red Knot, Green sea turtle, Hawksbill sea turtle, Kemp's ridley sea turtle,
Leatherback sea turtle, Loggerhead sea turtle, and their habitat
To the knowledge of the contractor, no protected federally listed species was killed, injured, captured, harassed, or
otherwise harmed by the conduct of the maintenance activities (ie. no incidental takings). No protected species were
observed during the conduct of the work; however, protected species observers were not required as a condition of the
permit. During the initial three (3) days of dredge operations, the USACE utilizized the permitted Temporary Disposal
Area located on the south west side of the proposed channel to allow for more efficient dredge operations. Once
sufficient channel depths had been achieved to efficiently load the dredge and ravel to the offshore disposal site, the
material dredged from the channel and the material dumped in the temporary disposal site was transported and disposed
of in the designated neatshored disposal site as shown on the attached drawings.
Please feel free to contact me should you have any additional questions regarding this project.
Very truly yours,
APTIM COAS Al, PLANNING & ENGINEERING OF NORTH CAROLINA, INC.
r
Ken Willson
Project Manager
CC: Josh Pelletier—USACE
Fritz Rhode — NMFS-HCD
Heather Coats — NC DCM
Gregg Bodnar — NC DCM
Bobby Outten — Dare County
Attachments: Attachment 1— Pre -Construction and Post -Construction Survey Charts
Attachment 2 — Construction Drawings

t
It
e 7:3,000
0 100 200 400 600 600
Funf
EVINUffED MITT LIN
DRmoF eoawe aF DECErffR 1; ime
1e.42eDY• 0
a,MCYe-tOFT
REj070Y0-12FT
LN1a cur
V 540079
Let W' 11' 27254' N
Len9 75' 46' 21.246' W
• • 9' • s �, z� �r" � s ewe e e
X
X066'
Vltl
35'RP Nlerp
I
W
•PFYDYIRTE LOL1111p1 Oi
1e4N01MRYUML!
DOPMRLtYIE
Ocracoke Island
REFERENCESURFACETNSUSEDFORESTeMT®OUN WCAL0UTATNMSD.CIIAE:
06C�_0FT_TIWP TN_20181212
084;_10FT_TEIIP TN 20101212
0N;_12FT_TEYP_TN_20181212
0
Y 540335
LM 35' 11' 28.974' N
7SF !
A. ne L1111 1$: e�,
Y
t
LEGEND
Aids to Navigation
1 G,m' Cep.
DeDM IN Feet
= 41M �
CP,
1 RrY lip.
-e-•
- 2-6
R.a Dm,e
�1D-e
Green 1pn,ed Buq
O DNwaw
-12-10
10Y4m0
_14-12
RM Lg1,N, BinY
-IS-14
Tq Gap.
-1Se DN N,
S0
Ju,MiM Yeher
�. �
Matchline
Hatteras Inlet
X 2W7384
Y 5UG13
Let 36' 11' 26A97'N
.75' 45' 41.332' M
X 2967378
Y 540113
LO35' 11' 2652
RECEIVED
JAN 2 9 2019
MP SECTION WIRO
,TES
E IXXNe MtEw FEEraMRFFERroNMas REPgtIED
NEAN LDWER lAW1 MR Md ) REIATNE M ME teei2W1 TICK
%IQECT 6UNVETED WNR DR:TPoDT 6UNVEY VE66EL'I'DTIER '. U6IW RTK GP4
Nde2ONULPOSIDCNNGEOUPMENTAND 30010125WMINGEg11FIENf.
IroRzaTTN.MTw NM 18i_ vERncAL Ml1TM MiLw.
TpE G1Ci LOfATEDl1T NWCE NPRINrt
USE OFTgE VN.VES FOR T10S MGENE RESTRClED10OUNJTYASSUWILE PURPOSES
PoR VElOFIGTIONDF RIK TIDES THE W WINGTp1 gSTfOCT WILLOfAY USE SLNE
WYE TIMLVKUESFI F'NKM/,P%NGNOOIMNIITY01LGllATIONiIFRMOWISUN-
,Y,JIA&E.ITTIE TIMEEpF ffiNVEY
TIE iwf ATION DEPICTED ON THIS SURYEY IMF REPRESENTS THE RESULTS OF SURVEYS
IMFE oN TIE MIES INMGTED NA CAN DNLY RE CONSIDERED AS IN Tlw TIE C£/ERRL
COM4nONb ENSTINGATWATTIMF. THESE COfaNTIONSiVE SUBJECT TO RAPDCHONGE
DUETO SNOAl1XG EYAPRUDEIITSHgAO NDT RELY IXCLUSNELYOM THE
INFdD1ATN)N RIDNDED ED WIRE.REq:IRED ED BY BT M ii CFit 2119.3E
MVGATON NDS LOCATED WM MSMCT SURJET VESSEL ACCI Ye43 METERS
----
Y:
--- - - - - --
v Na,.wn„c-�Morehee
GIry
z '
x
o
m
Z
LL
o
m
z
a0
m
O
Y
W
W
W
w
U
N
1
0
N
�
W
O
RI
p
U
K
o
N
Q
8
O
W
a
o
ui
W
J
I

t
Ocracoke Island
e1:3,000
0 200 600 600 800
f
Matchline
ESTIMATED MATENAL IN
Hatteras Inlet
DREDGE BOA AS OF JAWBJARY IS,211S
AT77C 04"
V'nn cY@aOFT
IT,. cY@-01Ft
Box CUT
q { a� * t 3 t b�An ♦
a ♦ F •1', e��1� �l , 0 6
a e a 'n a st. vesF eF
v a F o. a A av a
II ro c aI c n m my saIFT
at0 09
11 t01p q t0 � f 9 a if t13 t. 1 B p i3 J a is , 0,
11
�A, )*fit 8t 46
o
311 ie 181 n S 3 0 a 0 0 IG
K
q a..
pT s
REFERENCE SURFACE nM USED FOR ESTIMATED WNJTITY G CMADONS INCLUDE:
CSC-S TEMP TIN_MIS1212
GSC 10FT TEMP TIN A101212
OSC.IST_TEMD_TtN_M 81212
LEGEND
Aids to Navigation
1 Green U9M
OipOi In pM
-. aM BItY]».t
Can
1 Ref WM(
_0-4
G—D'..
a-B
Nun
R. Oayeeamn
=10-0
Gr.en LiFhIN Bu%
O Ouge, SM�.
-12-1p
MIM0.YN
=10-12
tJ
Red LOneC Bu%
_15-U
0 lice GWa
_15Mtl D0aMI
�
nncaon Maael
�uNNNa.
F,EVATNJRS ARE IN FEETAN I REFERE TO REPORTED
MEAN LNE OR LOW WAIER (N111'O RH-ATIVME TO THE 10612mI T10ALEPOCN_
PROJECT DUMEYED MITH DISTRICT SURVEY VI:S POTTER -',MBNGRTROP6
H(MUZ A1.POSITIIXANG EWWIENT AND 200 NHL BOUNCING ECKA MENT
NOMZJNfN. D01UM tM0IMO. V6ITILN. MTIM MLLW
TIDE GAGE LOCATEDAT BOARD@ MITERAS NLLAGE MARNW NOMGUAGE STATION HATTEF
USEO=TOEVALUESFORTNSGM:EARERESTRICTEDMOUA WASSUMNCEP WOBEB
FOR VERIFlCATION OF RTIt TmFS. THE WILMINGTON OSTSCTNILLOISY USE STAFf
WGE TGK VKLES f0R FUML MVFlNG M!D dJAMTDT GILCIAATNN181F RII(OP81S UN
AVNLABLE ATTIETNE Of GURNEY
THE INFORMAMN DEPICTED ON THIS SURVEY AMP REPRESENTS THE RESULTS OF SURVEYS
MADE ON THE DATES INDICATED AND GM ONLY BE CONSDERED AS INDICATING THE GENERAL
CONDDIONSEMSTINGATTMTTIME. THESE CONDDIWSARESMJECTTO RAPIDCHANGE
DUE TO SHOALING EVENTS. A PRUDENT MARINER SHOULD NOT RELY EXIMMIMELY ON THE
INFORVATION PROVIDED HERE. REQUIRED BY 33 CFR 20T.325
MVW'TTIONMMLOCATEDWM USTMCTSIJRVEYVESSELACCURACYN.SMETERS
71
m
a
0
Y
Y
m
m
w
m
SO
8
a

PAMLICO SOUND
HATTERAS INLET MAINTENANCE PROJECT
PROJECT AREA
HATTERAS
HATTERAS
OCRACOKE INLET
ISLAND
CHARLOTTE
N.T.S.
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
ATLANTIC OCEAN
o� o�150 00
GRAPHIC SCALE IN FT
RALEIGH� O�Np
—1 rv� mmnl I P. -
CAPE FEAR
DARE COUNTY, NORTH CAROLINA
CAPE HATTERAS
PROJECT LOCATION
AD CITY
LOOKOUT
ATLANTIC
OCEAN
SHEETINDEX
1 COVER SHEET
2 PROJECT OVERVIEW
3 CONNECTOR CHANNEL PLAN VIEW
4 CONNECTOR CHANNEL CROSS SECTIONS
GENERAL NOTES:
1. COORDINATES ARE IN FEET BASED ON NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
DATUM 1983, (NAD83).
2. ELEVATIONS ARE REFERENCED TO MLW.
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. DECEMBER 12, 2018.
5. BATHYMETRIC CONTOURS REPRESENT THE CONDITIONS OF THE CHANNEL ON DECEMBER 12, 2018 AND SHOULD
NOT BE RELIED ON FOR NAVIGATION PURPOSES.
LEGEND
jT
�n
�e
as
z dLL
W
W
Z
W
Z
W
z
z
z
J
d u
y � O�
QQ C 0 U
W O Z I
u
r "o a:a .2
aLLe3 .
�••�••�
MEAN LOW WATER LINE
--
MEAN HIGH WATER LINE
— — — —
CROSS SECTION LINE
Q HAT-03-V-18
HATTERAS INLET BORINGS 2003 AND ID
;
ba
g
s
Iu
a
'
N
NEARSHORE DISPOSAL AREA
m
SUBMERGED AQUATIC VEGETATION AND 100 FT. BUFFER
ASBUILT EXISTING CABLE ROUTE (CALDWELL CABLE VENTURES)
—� - - ---
EXISTING CABLE ROUTE (UTLITY ELECTRICAL CONSULTANTS, PC)
ASBUILT NEW CABLE ROUTE
3 a
o2
W
aszo
s
m£� w
m�zl
>
w'= °
RECEIVED
UZO° V
w
JAN 2 9 2019
=
DMMNG NC
MP SECTION WIRO
CS-1
DATE I 1 5HEET

1)
j NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
}
— \ 1
1 1
PAMLICO SOUND '
CULTURAL RESOURCE
SURVEY AREA
CONNECTOR
CHANNEL CORRIDOR
1 1 �
t \
HAT-03-V-17 0
/ 0 HAT-03-V-15 HAT-03-V-14
} AT-03-V-18
HAT-03-V-19
/ OCRAC&E
—J ISLAND — —
J
LIFE SAVING STATION
\ J� AVOIDANCE AREA
JJ BREAKING SHOAL
t _ AVOIDANCE AR
NEARSHORE DISPOSAL
LOCATION
V�
i
�� aT
� am
W
% / ( _
-03-V-90
CHARTED WRECK
AVOIDANCE AREA HAT-03-V 1
0
HAT-03-V-11 -
GHAT-03-V-12
HAT-03-V-13 ,
l
W
/)JHAT-03-V-7
HAT-03-V-6
z
z
g
p
0
o
� o�
O
O
V oz0
HAT-03 V-8
E 5 o e
o
l
z
HATTERAS
/ INLET Yo
�a
PROPOSED CONNECTOR
CHANNEL
G
�a
02:
i naz o
w= G
m�� w
U20 O
ors a
k
I
DMWING NO.
0 1000 2000
"%mdmmmw�
PV-1
GRAPHIC SCALE I
SHEEF 2 OF 4

V

CROSS SECTION A -A'
B-B' C-C'
5
5
MHW EL. +0.42'
MLW EL. +0.00'
I DECEMBER 12, 2018
W
EXISTING GRADE
ur _5
. . . . . . . . . . . . . L (
-5
3
J
10
O EL. -1-10
MLW
Q
w 15
I
-15
JCONNECTOR
MAXIMUMrADEL. CHANNEL EXTENDS
w
I = -12.0' MLW I TO EQUAL DEPTH AT
-20
TIME OF CONSTRUCTION . . .
1
-20
-25 1 -25
250 0 500 1000 1500 2000 2500 3000 3500 3750
DISTANCE ALONG SECTION (FEET)
CROSS SECTION B-B'
A -A'
5
5
DECEMBER 12, 2018
MHW EL. +0.42'
EXISTING GRADE
W
w 0
_
MLW EL. +0.00'
_ _ _
$
0Ur
ui
u
I
J
_5
Z
z
O
10
1 L
I
EL. -12.0' MLW
10
a
J
W
CHANNEL 3
WIDTH 200'
�.
W
W -15
.�.
-15
MAXIMUM AD EL.
= -12.0' MLW
-20
20
DISTANCE ALONG SECTION (FEET)
itNOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
CROSS SECTION C-C'
5 A -A' 5
DECEMBER 12, 2018
MHW EL. +0.42' EXISTING GRADE
0 MLW EL. +0.00' 0
-5
_10 ? L J 1 10
3 3 EL. -12.0' MLW
CHANNEL
15 WIDTH 200' -15
20 MAXIMUM AD EL -20
= -12.0' MLW
-25 T I I i -25
DISTANCE ALONG SECTION (FEET)
0 s 10 0 z�so soo
VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT
8, q
z a¢
Lu
W
w
z
Q
z
W
O
z
z
z
a
J
d
J C rc
y C O
a
O : o°
V m °z �
u z°
i
E wE
_ o
e
tu�3
i
a jzzz zu
oz�l0
ozo U
CQ20oa
Y
N
=WBzw
uzoo zu
° o
Nuu
L
DRAWING NO.
XS-1
sNEar a as a