20180944 Ver 1_MBNP Project 1 Event Notification_(Post-Florence)_20181025

CARTERET COUNTY, NORTH CAROLINA
BOGUE BANKS MASTER BEACH NOURISHMENT PLAN
PROJECT #1 — POST -FLORENCE RENOURISHMENT PROJECT (PHASE 1)
EVENT NOTIFICATION
1.0 PROJECT DESCRIPTION
The first project to be completed as part of the Bogue Banks Master Beach Nourishment Plan
(BBMNP) is the Post -Florence Renourishment Project — Phase 1. It is anticipated to take place
during winter 2018/2019. Current plans call for 945,500 cy of material to be placed along 27,275
linear feet of shoreline in three reaches in Emerald Isle East and Indian Beach. This is an average
fill density of 35 cy/ft however it is expected that the fill density will vary between 25 cy/ft and 45
cy/ft. This correlates to a dune width of 25 feet wide, and berm width ranging from 44 ft to 60 ft
with an average width of approximately 50 ft. Figure 1-1 shows the planned placement locations.
Approximately 945,500 cy of beach compatible material will be dredged from portions of the
Current and Old ODMDS. Permit drawings are provided in Attachment A.
Reach 1 represents a continuous beach placement section contained within Emerald Isle East and
includes approximately 617,100 cubic yards over 16,375 linear ft of beach (Station 335+00 to
498+75). While Reach 2 includes placement of 328,400 cubic yards over 10,900 linear ft of
oceanfront shoreline within Indian Beach (Station 498+75 to 559+75 and Station 671+00 to
719+00). A gap between Reach 2 and Reach 3 exists due to State ownership of land in this area.
The borrow area covers approximately 773 acres, with 218 acres located in the Current ODMDS
in Federal waters and 555 acres located in the Old ODDMS in State waters. It is anticipated that
if the dredging is confined to the portion of the borrow area located in the Current ODMDS, the
average cut depth will be approximately 5-7 ft based on a maximum dredge depth of -50 ft
NAVD88 with 2 ft allowable overdredge. If the dredging expands into the Old ODMDS, it is
anticipated that the average cut depth will be between 2-3 ft due to the larger area to dredge within.
It should be noted that while the Old ODMDS contains large mounds of material comprising
approximately 15 ft of compatible cut material, a majority of this material will not be necessary to
meet the potential dredge requirement of 945,500 cy and therefore it is expected that only 2-3 feet
would be dredged from the top.
It should be noted that this initial project had been planned as the "Year 6" nourishment, as
presented in the Master Beach Nourishment Plan, rather than "Year 3". As time has progressed
during the formulation and permitting of the Master Beach Nourishment Plan, a need has
developed to start the project with "Year 6". In addition, with the passage of Hurricane Florence
(September 2018), a nourishment project is necessary to mitigate for extensive erosion which
consisted of 945,500 cy along this project reach and approximately 3.2 million cy total along the
engineered beach sections of Emerald Isle, Indian Beach/Salter Path and Pine Knoll Shores.
1

1 2 3 4 5
-- a
0 7•� �.- / � kf � ---- ---- -------
F
-ANT�c
-.y}LJI
REACH REACHES
f]AERALD ISLE EAST INDIAN F
PRC�ECi NMITS
'�J 1
I�.V1LL � 114G STATION AT BEAGH NOURISHMENT SITES 91ALL BE LIED TG PUMP BREOGEO
MATERIAL ONTO BEACH, THIS STATION SHALL MOVE EAST OR WEST AS THE NOURISHMENT
PROJECT IS COMPLETED. DREDGED MATERIAL SHALLBE TRANSPORTED FROM ME
AREA DIRECTLY BY ME DREDGE AND OFFLOADED AT THIS LOCATION. CONTRACTOR
PROM OF MAP OF PROPOSED OFFLOADING STATIONS AND PIPELINE IN ACCORDANCE
PERMITS, SEE TECHNICAL SPECIFICATIONS.
BORROW
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SEE SHEETS NC -110 THRV C-113 LENGTH INCLUDEGTTAP ERS —.T1 NCL IESIY/F-1—
SEE SHEETS C -I 13 M C-114 SEE SHEET 0-115
PRWECT LIMITS
TOTAL FILL VCLOME = 945,500 CY
LE
TOTAL FILL EIRM = 27,275 LF
A'I'L. ANT IC OC'LAN
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SCALE: 1'=,000'
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5
Figure 1-1: BBMBNP — Post -Florence Renourishment Project — Phase 1 (Winter 2018/2019)
2

The 2017 annual monitoring analysis indicated that there were several transects that were
approaching the minimum volume trigger for the 25 -year level of protection. Figure 1-2 presents
the volume above -12 ft NAVD88 for each transect based on the 2017 monitoring data in
comparison to the volumes required for the 25 year and 50 -year levels of protection. As can be
seen, there are transects located in Emerald Isle East, Indian Beach, and Pine Knoll Shores that are
all approaching the 25 -year level of protection and these areas have even gotten closer to these
triggers after Hurricane Florence. At this time, Pine Knoll Shores may be beneficially receiving
sand from the next scheduled USACE Morehead City Harbor dredging event and therefore have
chosen to not participate in Project #1 at this time. Given that it has been 5 years since the previous
nourishment project was completed (post -Irene, 2013), Carteret County and the Towns have
chosen to be proactive in moving forward to avoid further erosion and mitigate for damage
associated with Hurricane Florence. Based on the outcome of potential FEMA reimbursements,
another project will likely be planned for next winter (Winter 2019/2020) which could consist of
another 2.4 — 3.2 Million cy.
450
440
430
azo
41a
400
390
380
3]0
360
350
340
330
320
310
300
290
� 280
2]0
260
250
240
230
220
210
0'0
80
IJO
160
150
2017 Volume Above -12 ft NAVD88
125
Emerald
Isle
West
Emerald Emerald
Isle Isle
Central East
Indian
Beach
Salter
Pine Atiant!
Knoll Beach
Shores (77-102)
263
Ir L,
131.
��� I'iil�llilllllllllllllllll
Transect ~
Figure 1-2: 2017 Monitoring Volume Analysis
2.0 METHODS OF CONSTRUCTION
The Post -Florence Renourishment Project— Phase 1 to be performed in Winter 2018/2019 will use
a hopper dredge to obtain material from the Current and Old ODMDS where it will then be
transported to an offshore temporary mooring and submerged pipeline near the project site. The
hopper dredge will then connect to the pipeline and pump the material from the hopper to the beach
where the sand is spread mechanically by bulldozers. As mentioned previously, this is the same
3

type of dredging placement operation used during Phase 1 and most of Phase 2 of the Bogue Banks
beach nourishment projects completed in winter of 2001-2002 and 2002-2003 (respectively) as
well as the Post-Ophelia (2007) and Post -Irene (2013) projects.
3.0 SEDIMENT COMPATIBILITY
The Post -Florence Renourishment Project — Phase 1 to be performed in Winter 2018/2019 will
have the option of dredging material from the Current and Old ODMDS. Figure 3-1 shows the
location of the potential borrow areas within the Current and Old ODMDS. A substantial portion
of the potential borrow area in the Current ODMDS was also used in 2013 for the Post -Irene
nourishment project.
Legend - Elevation (ft NAVD88) 37
-56.53 - -56.00 -43.99 - -42.00
-55 99 - -54-00 0 -41-99 - -40 00 OLD
�-53.99--52.00-39.99--38.00 Approximately ODMDS
-51.99 - -50.00 -37.99 - -36.00 9,225,657 cy m 93 27 m 4
�-49.99--48.00-35.99--34.00 Above -52 ft NAVD88 O O O R"84'
-47.99 - -46.00 -33.99 - -32.00 Q R
-45.99 - -44.00 -31.99 - -30.00 ~� . Jy1 O O O 00 MO 46
0 2,000 4,000 6,000 a=E
Feet
\ 1 49 0 0 o M
yye101k' oO OOY3 O oO -OApproximatel
72,711,727 cy
\ Are-aO O O Above -52 ft NAVD88
51
52 • ' 1
lilll�lli 15 �
\ 53 4 R '4" 52
\ v 52 1��� 53� FI R 2.55
54 \ ���� 5 5
\ \ G "1" ,�1ti1 111 lill�li
1 CURRENT �o �� (2yti,i ti �5
ADMDS
0
Figure 3-1: Potential Borrow Areas Within the Current and Old ODMDS
Based on analysis of the native beach sediment data from 64 samples (16 transects) investigated
by CSE in 2001, a median grain size of 0.3 mm was selected as the best representation of the native
beach. The native beach characteristics and fill requirements established for the project are
presented in Table 3-1.
rd

Table 3-1: Native Beach Characteristics and Rule Parameters
Characteristic
2001 Native
NCAC
Requirements
Required Borrow
Site Parameters
Fines (<#230)
Reported: 0%, Assumed: <1%
<1% +5%
< 6%
Sand (>#230 & <#10)
Reported at 98.68%
-
-
Granular (>#10 & <#4)
Reported combined at 1.32%,
Assumed 0.7% each
0.7%+5%
<— 6%
Gravel (>#4)
0.7%+5%
< 6%
Calcium Carbonate
Reported at 15-20%
20%+15%
< 35%
In addition, Moffatt & Nichol conducted a field investigation on May 24, 2018 to estimate the total
number of sediments and shell material greater than or equal to three inches in diameter, observable
on the surface of the beach between mean low water and the frontal dune toe, in a 50,000 square
foot area. Investigations were performed in two locations, one in Atlantic Beach between
Transects 78 and 80 and one in Emerald Isle between Transects 29 and 30. The Atlantic Beach
investigation area has never been nourished and the Emerald Isle investigation area has only been
nourished once. Results of the investigation found 138 pieces of shell material greater than or
equal to three inches in diameter at Atlantic Beach and 211 pieces of shell material greater than or
equal to three inches in diameter at Emerald Isle.
Vibracores within the borrow area were analyzed with respect to parameters as presented in Table
3-1 to determine the quantity and depth to which beach compatible material exists within the
borrow area. Table 3-2 presents the sediment characteristics of the vibracores within the potential
borrow areas. Based on analysis of these vibracores, it is estimated that beach compatible material
exists down to an elevation of —52 ft NAVD88. Thus, plans will specify a dredge depth of -50 ft
NAVD88 with 2 ft of allowable overdredge. Volume calculations indicate 2,711,727 cy of
material exists above —52 ft NAVD88 in the potential borrow area within the Current ODMDS
and 9,225,657 cy of material exists above -52 ft NAVD88 in the potential borrow area within the
Old ODMDS (see Figure 3-1). Therefore, the total volume available from the potential borrow
areas is 11,937,384 cy. While 1,519,030 cy is the expected placement volume, the anticipated
dredge volume could reach 1,974,740 cy due to losses typically incurred between what is dredged
and what is placed (up to 30%).
5

Table 3-2: Sediment Characteristics of Potential Borrow Area
Vibracore
Sample Interval Elev
(h, NAVD88)
Gravel
gINT Granularmetrics
Size Class (wt%)
Granular Sand 4230
Descriptive Statistics
Mean (r74 Std. Dev.(phi)
USC
Composition
Organic
(wt%)
Carbonate
-38.2
-43.2
1.18%
1.34%
97.36%
0.12%
0.27
0.99
SW
0.60
0.12
-43.2
-48.2
0.22%
1.87%
97.62%
0.29%
0.28
0.93
SW
0.60
0.13
-48.2
-53.2
0.18%
1.00%
98.57%
0.25%
0.26
0.82
SP
0.60
0.10
-53.2
-58.2
0.74%
2.56%
96.52%
0.18%
0.33
1.01
SW
0.60
0.14
-37.6
-39.6
2.70%
4.61%
92.06%
0.63%
0.34
1.35
SW
0.70
0.16
011
-39.6
-42.6
0.43%
3.32%
95.98%
0.27%
0.33
1.07
SW
0.60
0.14
-42.6
-47.6
0.07%
0.84%
98.83%
0.26%
0.26
0.83
SP
0.60
0.14
-47.6 1 -52.6 1.93% 1.48% 96.47% 0.12% 0.29 1.09 SW 0.60
0.14
-46.6
-51.6
4.59%
6.41%
88.74%
0.26%
0.45
1.59
SW
0.70
0.23
012
-51.6
-55.6
1.32%
3.24%
95.23%
0.21%
0.32
1.15
SW
0.80
0.14
-55.6
-60.6
0.34%
1.09%
68.36%
30.21%
0.20
0.99
SM
3.10
0.18
-60.6
-64.6
0.02%
1.89%
87.63%
10.46%
0.29
1.12
SW -SM
1.70
0.30
013
-47.3
-53.3
0.08%
1.38%
98.26%
0.28%
0.29
0.88
SW
0.60
0.12
-53.3 -56.3 0.24% 1.81% 88.22% 9.73% 0.23 1.01 SW -SM 1.30
0.16
-56.3 -58.3 0.01% 0.26% 35.69% 64.04% 0.18 0.79 CL 4.30
0.11
-44.1
-50.1
1.22%
1.77%
96.48%
0.53%
0.28
1.10
SW
0.90
0.12
-50.1
-56.1
0.21%
2.53%
96.97%
0.29%
0.28
1.02
SW
0.60
0.13
-56.1
-62.1
0.09%
1.70%
79.59%
18.62%
0.20
1.05
SM
2.00
0.23
-36.1
-42.1
0.00%
0.68%
99.24%
0.08%
0.25
0.86
SW
0.60
0.11
-42.1
-48.1
1.69%
1.18%
97.13%
0.00%
0.29
1.07
SW
0.60
0.14
-48.1
-53.1
1.63%
1.28%
96.97%
0.12%
0.32
1.10
SW
0.70
0.13
-53.1
-55.4
0.00%
0.28%
99.23%
0.49%
0.24
0.73
SP
0.70
0.10
-36.4
-41.4
2.55%
3.35%
93.98%
0.12%
0.35
1.29
SW
0.60
0.18
-41.4
-46.4
1.28%
2.23%
95.77%
0.72%
0.31
1.18
SW
0.80
0.21
-46.4
-50.3
2.31%
2.38%
94.92%
0.39%
0.30
1.21
SW
0.60
0.09
021
-37
-42
0.36%
1.64%
97.72%
0.28%
0.30
0.92
SW
0.60
0.16
-42 -47 1.77% 3.11% 94.66% 0.46% 0.36 1.24 SW 0.60
0.12
-47
-52
1.66%
1.76%
96.42%
0.16%
0.31
1.08
SW
0.70
0.12
-32.7
-37.7
2.14%
2.52%
95.21%
0.13%
0.34
1.20
SW
0.60
0.16
-37.7
-42.7
2.12%
2.95%
94.79%
0.14%
0.31
1.18
SW
0.40
0.12
-42.7
-47.7
1.58%
1.21%
96.84%
0.37%
0.29
1.03
SW
0.40
0.12
-47.7
-52.7
1.06%
2.67%
95.87%
0.40%
0.34
1.02
SW
0.50
0.15
-47.8
-53.8
1.88%
3.50%
94.51%
0.11%
0.36
1.25
SW
0.60
0.13
-53.8
-57.8
0.08%
0.80%
91.30%
7.82%
0.19
0.70
SP -SM
1.00
0.08
-57.8
-62.8
0.71%
1.02%
81.63%
16.64%
0.27
1.06
SM
1.20
0.24
-62.8
-65
9.13%
16.02%
65.43%
9.42%
0.81
1.90
SW -SM
1.90
0.53
-49.3
-54.2
4.78%
3.50%
86.91%
4.81%
0.24
1.59
SW -SM
1.50
0.13
-54.2
-56.1
0.32%
0.87%
98.61%
0.20%
0.26
0.85
SP
0.50
0.10
-56.1
-63.2
1.85%
6.13%
73.39%
18.63%
0.38
1.63
SM
2.30
0.33
025
-42
-48
0.90%
2.86%
95.88%
0.36%
0.33
1.10
SW
0.50
0.14
-48 -54 2.05% 1.91% 95.21% 0.83% 0.33 1.21 SW 0.50
0.18
-54
-59.9
1.79%
2.86%
95.23%
0.12%
0.32
1.17
SW
0.90
0.19
-59.9
-61.5
0.00%
1.07%
92.30%
6.63%
0.18
0.80
SP -SM
1.60
0.10
-45.7
-50.7
5.01%
4.41%
90.21%
0.37%
0.36
1.62
SW
0.60
0.13
026
-50.7
-55
0.97%
1.37%
97.45%
0.21%
0.30
0.97
SW
0.40
0.12
-55
-59.5
0.35%
3.75%
75.53%
20.37%
0.23
1.33
SM
1.50
0.11
027
-43.6
-47.6
0.56%
2.97%
96.27%
0.20%
0.40
1.06
SW
0.50
0.17
-47.6 -51.6 0.67% 2.02% 96.96% 0.35% 0.32 1.00 SW 0.50
0.12
-51.6
-56.5
0.16%
1.35%
98.08%
0.41%
0.29
0.88
SW
0.50
0.12
-56.5
-60.4
0.40%
3.15%
83.73%
12.72%
0.21
1.15
SM
1.80
0.20
-42.7
-48.7
0.59%
1.62%
97.70%
0.09%
0.28
0.93
SW
0.50
0.13
-48.7
-54.3
0.41%
1.73%
97.70%
0.16%
0.30
0.95
SW
0.50
0.13
-54.3
-55.6
0.35%
1.87%
74.98%
22.80%
0.27
1.13
SM
1.70
0.14
-49.1
-52.6
0.15%
1.22%
98.57%
0.06%
0.29
0.86
SW
0.50
0.12
-52.6
-55.3
2.15%
4.31%
88.07%
5.47%
0.27
1.44
SW
1.50
0.22
-55.3
-60.1
0.00%
0.03%
93.27%
6.70%
0.14
0.34
SW
1.00
0.08
-60.1
-65
2.80%
3.99%
77.78%
15.43%
0.33
1.66
SM
2.30
0.34

4.0 TYPICAL CROSS-SECTION AND PLAN VIEWS
Figures 4-1 through 4-4 present typical cross-section and plan views for the area to be nourished
during the Post -Florence Renourishment Project — Phase 1, which will extend from just east of
Transect 34 in Emerald Isle Central to just west of Transect 58 in Indian Beach, with a small break
from Transect 53 — 55 in Indian Beach. These typical cross section and plan views were developed
for the specifications based on September 2018 post -storm survey data. Slight adjustments within
the permit guidelines might be made prior to construction based on pre -construction surveys.
While the average fill density for the project is approximately 35 cy/ft, this value will vary at each
transect across the reaches based on the existing conditions. However, it is expected that the fill
density will remain between 25 cy/ft and 50 cy/ft throughout the project. Figure 4-5 present the
site plan for the proposed borrow area located in the Current and Old ODMDS.
7

1
2
3
4
3
N
UNE,
LEVEL PUN
WIDTH vARI
LANDWARD
DUNE C
90NSIR
HasEu
s
FILL MMIT, E
EST d
CTION
E. EL +1zD
LE
4HD
pU
LEVEL DVN
WDTH vARI s
—
_
zD
REACH RENOURISHMENT
FlLL FROM ODMDS
SPT
LE L GERM
LND VARIES
M WEL +1.5
20
APPROK
E%IST. GRAD
J
,s
T �
L_
RSD•
DESIGN
LL
SEAWARD FILL
ELEVATON V
DMIi,
IES
-
t0. e]
TO
FaOT
ANCE
WEL +1.5
ESIST GRAD J
0
0•
—l0
10
S
4
6
wp
F
-
w 0
0
a
G
U
F
f-
-100
P 100 20D 300
400
6 0
z y
DISTANCE (FEET)
C1 BEACH NOl)RI... FILL TOLERANCE TYPICAL SECTIONA.
$
o
m
zD
zD
y
a
g
d
S a
10 -.
B
gp
a
WININ
Fo
•�M
w 0
9
NA E'
- e
E
SEE TECHNICAL SPECIFICATIONS FOR ENTS NG.
FERTILIZING AND WATERING REQUIREMENTS,
?
e
-100
D 100 211 300
DISTANCE (FEET)
990
3
Al REACH NOURISHMENT TYPICAL SECTION
'I�o
scale. as sIouN
o-1lo Mu o -ll
SCALE: 1"-4'VERiIC L
a
®
SGALE, 1"=c0'HORIZONTAL
C-300
1
2
3
4
5
Figure 4-1: Beach Nourishment Typical Cross Section
ccNSlRucn9N
DISTANCE VARIES
DISTANCE VARIES
_
VECETATI
PLANTING
ALONG —S-:
FACE IF
N
UNE,
LEVEL PUN
WIDTH vARI
LANDWARD
DUNE C
90NSIR
HasEu
s
FILL MMIT, E
EST d
CTION
E. EL +1zD
LE
4HD
pU
LEVEL DVN
WDTH vARI s
—
_
REACH RENOURISHMENT
FlLL FROM ODMDS
SPT
LE L GERM
LND VARIES
M WEL +1.5
APPROK
E%IST. GRAD
J
,s
T �
L_
RSD•
DESIGN
LL
SEAWARD FILL
ELEVATON V
DMIi,
IES
-
t0. e]
TO
FaOT
ANCE
WEL +1.5
ESIST GRAD J
Figure 4-1: Beach Nourishment Typical Cross Section
CCNSRiUCT10N
DISTANCE VARIES
_
VECETATI
PLANTING
ALONG —S-:
FACE IF
N
UNE,
LEVEL PUN
WIDTH vARI
LANDWARD
DUNE C
90NSIR
HasEu
s
FILL MMIT, E
EST d
CTION
E. EL +1zD
LE
4HD
pU
+12.0
L GERM
VARIES
E TOE, EL +6.0
BERM CREST &
CONSTRUGnO
BASELINE, EL +6.0
_
REACH RENOURISHMENT
FlLL FROM ODMDS
SPT
M WEL +1.5
APPROK
E%IST. GRAD
J
N W EL -23
-
SEAWARD FILL
ELEVATON V
DMIi,
IES
Figure 4-1: Beach Nourishment Typical Cross Section

1 2 3 4 5
0 0 �•
6
wp
a o
0
F x
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uO
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v
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d m�'a r= •, i � I T I -
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-; — — � " — � � � — — �SEAWARO FILL BMIT <
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`£E SHEET C-6C1 FOR CCNSIRUCTIOh BASELINE WOPN POINT TA6lE5.
2.
SEE
SHEETS C-3D1 Ti RL C-314 FOR
Figure 4-2: Reach 1 -Typical Plan View
CROSS SECTIONS
SCALE. I"=1110'
Figure 4-2: Reach 1 -Typical Plan View

4
L 1
C odd
O
al d
--T
;r. �. I J
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SE-ED ILL LIMIT
o
�e w
1—TE OCEAN
SEE SHEET C-601 FOR - 6.0
GERM IW
B—T- EASE-- POINT TABLES. C-1 12
REEET9 C-301 — C-51+ FOR CROSS SEC -E, KALE 1-1 E,
2
Figure 4-3: Reach I and 2 - Typical Plan View
10
10

Figure 4-4: Reach 3 - Typical Plan View
11
1 2
3
4
5
s -
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ILL
CREST & CONST
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g
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ATLANTIC OCEAN
REAL i 1 REACH 2
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r BASELINE. Ej 1z p
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5
E
FOD
APJ:NTIG WEAN -
NFl SEE SHEET C-601 FOR CONSTRUCTION 34SELINE WORK POINT TABLES.
2. SEf SHEETS C-301 TH RU C-314 FOR CROSS SECTIONS
SCALE. 1-1W
Swee-
R 0-113 b
L L.
1 1 2
3
4
5
Figure 4-4: Reach 3 - Typical Plan View
11

b
B
G339M
MOREHEAD CITY
oDMLenC
�pD.pile
DAM05
4
S
EASING
OBMDSI
PROPOSED BORRDVI AREA
COORDINATE TABLE
2,896.458
00MO3-2
532,8]5
2,895,144
r
i
33O,gp4
2,696, t91
CD.GS-5
332850
2, E93,10]
00MP5-C
1
A
0
332.059
2.691.471
�•
-
1
LEc
BA PROPOSEO BORROW AREA
f
CONTHOL POINT
TLOCATION
ICRE
OO'W 2011 TECH
(SEE SCAM SPECIFICAPONS
FOR DATA AT0. SIMMARY)ID
6
w N
1
f
V
M REMOTE SENSING TARCET
NATES
{
{ '
' !
I. REFEREN ED CONTOURS SHRE BA FEET
MUI-TEAM TO HAVE B8 ARE BABY ON
GEOD EAM SURVEYS PERFORMED BY
S IN MARCH 2010 AND CAN ONLY
u ¢
a
V
f
BEOO NSLE
RE THE T ERED AS INDICATING THE WNDIPPNS
AT THE LIME OF THE SURVEY.
j
p�
!
2- BORROW AREA COORDINATES APE NORTH
u
!'
CAROLINA STATE PLANE, HAD 83 (FEET)-
F
]REHEAR I ��
3. THE MEAN HIGH WATER ELEVATION AND MEAN
LOW WATER ELEVATION SHOWN CN THE BREUGE
"'ATIONR V 1
SECTIONS WERE PROVIDED BY CARTERET
p b�
p n
¢
1ANNEL�IV I
!
COUNTY AND ARE DREW ON NUAA TIDAL
ETUM5 AT THE ATLANTIC READ -1 TRIPLE 5 PIER
AND THE DUKE MARINE LAR
2
u U
p
m
4. ATH ER CONTRACTORS MAY BE PRESENT IN
W M
%
f
AREAS DREDGING CF BEACH ELL
g
a
IV
I
MATERIALS TO OCCUR CONTRACTOR IS
ALS 15
RE�FONSIBLE FOR LOORDINATNG ACTIVITIES
�
O
p
!
5. SEE TECHNICAL SPECIFICATIONS FOR DATA
SUMMARY OF THE ARWAEOLAnAT REMOTE
SEN S'TU AND TARGETSTHAT SEE.73
THE TA
THE STNBT CONCLUDES EVOES THAT THE TAPGETP
CONSIST MODERN (HIRE ROPE PIPE,
e
!
T
ETC.) THAT APPEARS TO 6E RELATED TO THC
TC E
a
}
VI
1
00.015 OR ARTIFICIAL REEF SYSTEMS BUILT IN
THC 19]05. NO CULTURAL RESOURCES OR
8
e
I
HISTORICAL ARTIFACTSWERE FOUND.
6
d -
j
THEFJ1CEMS BORROW ST CINGVPASSEB WITHIN
THE 00.85 BARROW STf.
fl
]. FOR NBRACORE SUMMARY TABLE SEE `.riEET
t
B 3 4
t�
®
� #
S a
3 t�
�
�
-�
! I
REMOTE 8ENSFIG TARGET
!!
COORONATE TABLE
p
Fo A
II
I
E
K
o�
s PF
w
Figure 4-5: Borrow Area Site Plan
TARGET IB
NOBIRNG
EASING
OBMDSI
331.128
2,896.458
00MO3-2
532,8]5
2,895,144
OPLO S-3
33O,gp4
2,696, t91
CD.GS-5
332850
2, E93,10]
00MP5-C
532,8]2
2,891,951
ODDS -10
332.059
2.691.471
12

5.0 ENVIRONMENTAL DOCUMENTATION
A Final Environmental Impact Statement (FEIS) was prepared in accordance with the National
Environmental Policy Act (NEPA) of 1969, as amended [42 United States Code (USC) 4321-
4347], to address the environmental effects of proposed shore protection activities on the barrier
island of Bogue Banks in Carteret County, North Carolina. The Wilmington District, United States
Army Corps of Engineers is evaluating a request from Carteret County (Applicant) for Department
of the Army authorization pursuant to Section 404 of the Clean Water Act and Section 10 of the
Rivers and Harbors Act to implement a comprehensive, long-term beach and inlet management
plan for the protection of 25 miles of shoreline on Bogue Banks. Concurrently, the Bureau of
Ocean Energy and Management is evaluating a request from the Applicant for authorization
pursuant to the Outer Continental Shelf Lands Act (OCSLA) [43 (USC) 1337(k)(2)] to use outer
continental shelf sand resources as a component of the proposed action. A Coastal Area
Management Act (CAMA) Major permit application was submitted 7 June 2018 to the NC
Division of Coastal Management.
6.0 MASTER BEACH NOURISHMENT PLAN STATUS
The Post Florence Renourishment Project — Phase 1 is the first project to be performed under the
50 -Year Bogue Banks Master Beach Nourishment Plan (BBMNP) and is estimated to use 945,500
cy of the 22.6 Mcy allotted for background erosion. As discussed in the Final Master Beach
Nourishment Plan (2014), the proposed nourishment volumes approximate the need for storm
erosion only and will be used for overall long-term planning and budgeting purposes (Table 6-1,
Figures 6-1 and 6-2). Reference should be made to Table 1-3 in the Final Master Beach
Nourishment Plan for the initial volume needs and cycle of nourishment events.
13

Table 6-1: Renourishment Intervals and Preliminary Projects Based on
Management Reach Approaches*
Year
Management Reach
Nourishment
Volume (cy)
Proposed
Nourishment
Project (Yr)
2019
6869067
3
2022
1,839,351
6
2025
967,920
9
2028
1,839,351
6
2031
6869067
3
2034
2,121,204
6,9
2037
6869067
3
2040
1,839,351
6
2043
967,920
9
2046
1,839,351
6
2049
68607
3
2052
2,121,204
6,9
2055
686,067
3
2058
1,839,351
6
2061
967,920
9
2064
1,839,351
6
*Reference Table 1-3 in the 2014 Bogue Banks MBNP for projected volume needs and
nourishment cycles of the managed reaches.
14

-
Emerald Isle Emerald Isle 1 Indian Beach/ 1 1 1
Emerald Isle ' i Atlantic
Inle 1 i Salter Path Pine Knoll Shores i 1
West Central I East 1 Beach
Ocean 1 1
'� ��.. _.._ :1 1 =+fi zi ! .ii& -n ao 1t a�'ai L ?Y a0 (5 _I2.0 uhf Y�]aa.l ev w. .:!]. 5i `�.n`n rnw 'y'�1,=/J.�■=_. `21.T3 61sl Tt is xo 61Q lrE µ- ,� �• Fort I ~_
,a ,e yaar�.�_. R.:a-r ,i3Ra f.-il.J-!� ee•S
`�I „{ ,a+• +s � �.a.� N.t� �.�eaa+ajj�a�s¢i,2,'�� �-� 1 Macon
o,
Wel „� _�{isj%,lyl�oc,w„o E urarr
ror,�M IN IBI
r
zuAu
zoite
2020
2,21
102..12
2,
2,
2,'..
z,V
2"20
2029
2690
x0i1
zaaz
zoos
xv za
2n?:
zvac
.t631
2oa
20”
1,
zona
nanz
20
'0"
204347
2046
20¢1
x090
20 y2
zos3
2054
20s�
2050
2057
io 0
z0s�
x020
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2053
zona
2065
2066
zoo,
eo0e
0+00
100.00 200.00 i00v0n nOgvOp 560+nn 00-,(]0 st[-00 900 00 10-0x00 1300x00 1100x00 1i00 X00
a hank b.'.(I—m — ..Ix, 11 �ft]
Bogue Banks Beach Nourishment Projects
2018 - 2068
� MBNP Project #I
Figure 6-1: History of Bogue Banks Master Beach Nourishment Plan Projects
15

CARTERET COUNTY
0.
a m's L. :6'–�i*%.��_ 494835c ��►'k1il- 13
i-■r.�-� 4,835cy
RRf}�--�-� R .. 508,7713 cY 5
*� 494,83
�.• Sas 5 402 �Y p oe Atlantic Beach
G hores
3T 2G� lK59 Thi {77-102)
191,23L Y lndWn Beath
5atiter Q
791 232 c fast �49 5S)
Isle
All C-4
ern
i•= rald 1siE
,so ge
xfi J6i
s .'
Re
a'Nest
aY sch3
ohl
a69 qua\Oet Ems ` x.251 ga� Z ln$alterr Path
R 55-58
Reach 1
ts
Indian 9649 52 bra 9Gmiles
4rJ
emeiratd Isle
34 .4g
Transee,,
1 miles Aral,700 cy
is
bra 3 riles
166,74 cY
617 ,16Q eY
ONSL O W BAY
Legend
�► Year 3 Nourishment
�► Year 6 Nourishment
�► Year 9 Nourishment
0 0.5 1 2 3
Miles
Figure 6-2: Overlay of Post -Florence Renourishment Project — Phase 1 with Proposed Future Nourishment Intervals
16