Oak Island Renourishment Project_Appendix C2-Waves

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
APPENDIX C2
Predicted wave fields for Existing and after -dredge bathymetric conditions
and changes in wave height caused by after -dredge bathymetric condition
Template 2
201912020 Renourishment Project

17 ', ,
16 C
T 15 G(
i6
a 14
0
0
T
13'
12
694 695 + ,696 697, `698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 -• +1% Sti G%
16 c
E 15 G
o d
a 14
00
T
13'
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case01:
Hs = 2.5 ft, Tp = 9.0 s, Dir = 97.7 degN
Percent Occurrence = 4.854%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
` tirtt it,�i,t
,
,t
t
t
ttt
t
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave HeHeigghtl isting (ft)
17
16
T 15
E
a 14
0
0
U
T
13
12
fi94 695 + `696 697 696 699 700694 695 + t696 697 698 " 699 700 701���7022�037022�03
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
n,
, tr
r, � t ,
t
, t
ttt
,t
t
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case02:
Hs = 4.4 ft, Tp = 9.5 s, Dir = 98.0 degN
Percent Occurrence = 3.973%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

1/11
17
16
T 15
m
m
a 14
`0
0
V
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 -• Sti
16 c
15
a 14'
0
13 ' iiii �•
12
694 695 696 697s 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseW:
H, = 7.8 ft, Tp = 10.1 s, Dir = 97.3 degN
Percent Occurrence = 0.635%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
T 15 G
v d
a 14 i ..
00
12
694 695 696 697 696 699 700 701 702 703
x ocordlrate (km)
0 2 4 6 8 10 12
Significant Wave
'+Height Existintg= (ft)
17
16
T 15
E
a 14
`0
0
T
13
12
694 695 696
6971' 1698 699 700 ' 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
T 15
E
m
a 14
00
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case04:
HS = 11.3 ft, Tp = 11.8 s, Dir = 97.1 degN
Percent Occurrence = 0.164%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
m
m
a 14
`0
0
V
13
12 .-
694 695 696 697 698 699 700 701 702 703
x coordinate (km) -
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
161,c
r.
T 15 G
o d
a 14
0
T
13
it
12'
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case05:
Hs = 14.2 ft, Tp = 12.4 s, Dir = 98.0 degN
Percent Occurrence = 0.054%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
16 C
T - G
15
v
-214
00
i.
13
12
694 695 696 697 698 699
x coordinate (km)
700 701 702
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 N
16
T 15
E
a 14
0
13
12
703 694 695 696 697 696 699 700
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16
c
T 15 G
o d
a 14
0
T
13
12'
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
701 702 703
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case06:
HS = 17.5 ft, Tp = 13.9 s, Dir = 99.0 degN
Percent Occurrence = 0.016%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

694 695 696 697 698 699 700 701 702 703
x coordinate (km) -
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16
T 15 G
a 14
0 • . •.
T
13
12'
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16e C
v d
a 14
0
T
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case07:
Hs = 20.7 ft, Tp = 13.1 s, Dir = 98.0 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17461
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x coordinate (km)
0 2 4 6 8 10
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Significant Wave Height_ Existing (ft)
17
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x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
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694 695 696 697 696 699 700 701 702
703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case08:
Hs = 2.4 ft, Tp = 8.9 s, Dir = 112.5 degN
Percent Occurrence = 6.297%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
O
0
13
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694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
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16
T 15
E
m
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694 695 696 697 698 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case09:
Hs = 4.4 ft, Tp = 9.4 s, Dir = 112.4 degN
Percent Occurrence = 5.030%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16
T 15
E
m
m
a 14
`0
0
T
13
694 695 696 697 696 699 700 701
x coordinate (km) —�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case10:
Hs = 7.7 ft, Tp = 9.6 s, Dir = 112.8 degN
Percent Occurrence = 0.714%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
E
m
m
a 14
00
13
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16
T 15
E
a 14
0
0
U
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
101
17 ,1;,
E
m
m
a 14
00
V
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Casell:
HS = 11.3 ft, Tp = 10.9 s, Dir = 112.2 degN
Percent Occurrence = 0.129%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
0
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694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+Height l isting (ft)
171r';',
16
T 15
E
m
m
a 14
`0
0
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13
12
694 695 696 697 698 699 700 701
x coordinate (km) —�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
101
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case12:
Hs = 14.1 ft, Tp = 12.2 s, Dir = 112.0 degN
Percent Occurrence = 0.038%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

16
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x coordinate (km)
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Significant Wave Height_ Existing (ft)
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694 695 696 697 698 699 700 701 702
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x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
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16
r
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseB:
Hs = 17.6 ft, Tp = 11.2 s, Dir = 115.9 degN
Percent Occurrence = 0.005%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

16
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x coordinate (km)
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Significant Wave Height_ Existing (ft)
17
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x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
15
rtr ;' ; rr'r'; r`r;', ;ri;rrfr.,•......,
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694 695 696 697 696 699 700
701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseM:
H, = 20.7 ft, Tp = 12.3 s, Dir = 115.8 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
s
m
m
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702
703
x coordinate (km)
0 2 4 6 8 10
12
Significant Wave Height_ Existing (ft)
17
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694 695 696 697 698 699 700 70, 702
703
x coordinate (km) -1
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseM
Hs = 23.3 ft, Tp = 15.3 s, Dir = 115.1 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
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x coordinate (km) —�
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Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseM
Hs = 2.5 ft, Tp = 8.6 s, Dir = 126.91 degN
Percent Occurrence = 5.573%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
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x coordinate (km)
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Significant Wave Height_ Template 2 (ft)
Offshore Wave Case17:
Hs = 4.4 ft, Tp = 9.0 s, Dir = 127.3 degN
Percent Occurrence = 4.728%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
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x coordinate (km)
702 703
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2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case18:
HS = 7.7 ft, Tp = 9.6 s, Dir = 127.1 degN
Percent Occurrence = 0.789%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

-
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x coordinate (km)
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
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x coordinate (km)
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Significant Wave Height_ Template 2 (ft)
Offshore Wave CaseM
Hs = 11.1 ft, Tp = 10.1 s, Dir = 128.1 degN
Percent Occurrence = 0.135%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

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x coordinate (km)
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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Significant Wave Height_ Template 2 (ft)
Offshore Wave Case20:
Hs = 14.4 ft, Tp = 10.2 s, Dir = 126.9 degN
Percent Occurrence = 0.035%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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x coordinate (km)
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
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Significant Wave Height_ Template 2 (ft)
Offshore Wave Case21:
Hs = 18.0 ft, Tp = 11.3 s, Dir = 128.7 degN
Percent Occurrence = 0.010%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
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Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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Significant Wave Height Difference (Template 2 - Existing) (ft)
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case22:
Hs = 20.2 ft, Tp = 12.2 s, Dir = 130.1 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case23:
Hs = 26.8 ft, Tp = 14.8 s, Dir = 128.6 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

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x coordinate (km) �
702 703
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Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
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Significant Wave Height_ Template 2 (ft)
Offshore Wave Case24:
Hs = 2.5 ft, Tp = 8.0 s, Dir = 141.6 degN
Percent Occurrence = 3.391%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
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x coordinate (km)
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Significant Wave Height_ Template 2 (ft)
Offshore Wave Case25:
Hs = 4.5 ft, Tp = 8.3 s, Dir = 142.0 degN
Percent Occurrence = 3.696%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
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Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case26:
Hs = 7.8 ft, Tp = 8.9 s, Dir = 142.5 degN
Percent Occurrence = 0.646%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
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x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case27:
Hs = 11.3 ft, Tp = 9.9 s, Dir = 142.2 degN
Percent Occurrence = 0.193%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
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V
13
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
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Significant Wave Height Difference (Template 2 - Existing) (ft)
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case28:
Hs = 14.1 ft, Tp = 10.4 s, Dir = 142.1 degN
Percent Occurrence = 0.054%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
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x coordinate (km)
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case29:
Hs = 18.3 ft, Tp = 11.1 s, Dir = 142.9 degN
Percent Occurrence = 0.0 11%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case30:
Hs = 20.2 ft, Tp = 12.3 s, Dir = 142.6 degN
Percent Occurrence = 0.003%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case31:
H, = 25.2 ft, Tp = 15.9 s, Dir = 141.2 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
00
a
13
J
17
16
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a 14
00
13
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16
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x coordinate (km) -�
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Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
rr j�r%rTr rrrr!
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case32:
HS = 27.6 ft, Tp = 14.8 s, Dir = 143.3 degN
Percent Occurrence = 0.001 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
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16
T 15
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a 14
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13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case33:
Hs, = 2.6 ft, Tp = 7.1 s, Dir = 156.91 degN
Percent Occurrence = 2.225%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
rV 4 .,�..it — \
16
T 15
E
m
a 14
0
0
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13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case34:
Hs = 4.6 ft, Tp = 7.4 s, Dir = 157.3 degN
Percent Occurrence = 2.810%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12li��t�titii#�t�G44�4ji6;R�441z�:�§t44{F?c�;k4{��}4�4+it�t!�i �,�, .��aii;'1{1I1111l.r�
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 f'.t4.4§4i?e G41fr.'c'irr:i _ ".i N e4 .,�_-,t — \
16
T 15
E
a 14
0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case35:
Hs, = 7.8 ft, Tp = 8.1 s, Dir = 157.7 degN
Percent Occurrence = 0.739%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
121{11;t}e4}�4{4t{i1;4�r4et�}iS};E�e4¢i4��,�r4e};i4�4{¢4�+4{it�t!,� ff�:r1✓�,�;(N,'f,r�il�1�1111�:�
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 1'.L4.4frki!`t>it4'1'1'.G'tra7rv"rr ".1L� N e4 .eV.ft — \ \`a- ' ..
16
T 15
E
a 14
`0
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T
13
12 M}}}t}tp4}4t�4i44}44y4cMt�t�,Ef1.iyr'�,�,.
} } } } } M M }
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case36:
Hs = 11.0 ft, Tp = 9.2 s, Dir = 157.3 degN
Percent Occurrence = 0.174%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
{44t#¢�#�4 #4i�{i� �i4s#4;1'o' �§e4
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 rg��j�I7(r1'err=rr��l�trilT}�r�rf'1111r'111111fj� ry � �
--
16
T 15
E
a 14
0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case37:
Hs = 14.6 ft, Tp = 9.7 s, Dir = 157.6 degN
Percent Occurrence = 0.035%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
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.t. tr4L4�r+rt.4%rrr+a.Jr?r+„+✓.'.:,r � _
16
T 15
E
a 14
`0
0
T
13
12 �41�c{tc1}44�tRl4T{144aiF4�4cpR�ikklrt"i�4�4y4�tc�t►E1�i1, .`','6�lf;rr.
F 1 14 i l i 4 4 4 t/.l.
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case38:
Hs = 17.4 ft, Tp = 11.1 s, Dir = 154.1 degN
Percent Occurrence = 0.007%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
0
V
13
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
E 15
o �
a 14
`0
0
V
�-
A
13
121t14�;c4��4i 441�z1}41 i� F4t4�cl114 i16 rf'!r��4,,, ��4 c�it�f ► f1 %i,�1 ii'�r�i r'>� flilllf
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �¢. l�j41'rl trir`1' r++rrr�+ i r, S�
rt4rr+r+tl��+�rrr+rtiil�Tr
+�t._ t�4L4.'',+�r:,lr-l�+.a!lrr�r„}✓.'r;,, _
16
T 15
E
a 14
`0
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13
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tl 4�.t tt cL icl.4 ��r.Li, ci.�4,c tR ck ,4.r. �s}.44.4.rt a r. ►,%i, ,..�'�'r'a''r5»,rr,,t'fli1 „r. !
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case39:
Hs = 20.5 ft, Tp = 11.9 s, Dir = 154.8 degN
Percent Occurrence = 0.003%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 rr51flYrl�r%frr1 r�frri�r rrr
7tccTrj tl� rrir�r��r��r�rrr�f�r��jrtr�rrrrl! � n _
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16
T 15
E
a 14
0
U
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) —�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
E
x
N
m
a 14
`0
0
V
A
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case40:
Hs = 23.9 ft, Tp = 13.0 s, Dir = 159.0 degN
Percent Occurrence = 0.001 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry
16 trrrr��{rrrrr/'ifirrr'rif
15MOW",
f' r 7r1 r '/�Jr�
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a 14 ri{ri'rrr,r�
00 r rrrrrr
rtr
13
,rttr
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �}q �i7V! 4? lfvrrfr rr r °� "10
rif'rr'r r
gt¢ rI rirrr ylr�r { r
1J`ry j,jpt{ rf ryrr Y rrr�rrrrirfrr�rr'rrrrtr'rr c
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T 15
�j�
0 4? y�
14 { # 4 li¢� 41;44{;¢�fi�
rl¢ 411 r r1�,f¢i%1;''''
a TFT f � }}� 1 Ltr ?f }}� r� rr j rf } �S 1, r I :'-•.
}I'}>�Ir rt
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r
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
E 15
s
m
a 14
00
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case41:
HS = 2.7 ft, Tp = 6.1 s, Dir = 172.3 degN
Percent Occurrence = 1.770%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 §:i �ii�4f:�llr,5r'i:'i'i,ri . ".1L� rV 4 .,�,.-,,f — \
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 596 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case42:
H, = 4.6 ft, Tp = 6.7 s, Dir = 172.6 degN
Percent Occurrence = 3.194%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 4{�4;4t4i��f"�44���Y�4'�4�f{f}��1I f't rf'1 r g '�0.� 1
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 ht'.'r.4rril4f?ijr t5f�:'i?i!; 4'r _ —.1L� N e4 ., ._ it — \
16
T 15
E
a 14
0
0
13
'� ®r 1 rz, ,
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case43:
Hs = 7.8 ft, Tp = 8.0 s, Dir = 172.5 degN
Percent Occurrence = 1.012%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12�4rr�y��41�'y�yfr�7�yriy'rfik�f�'ffrit�t'1'''.�``'�'�r,%`Ff„
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 rttrf4rrr}rrrr%rrrrr�r �Er��rfr°ii��r rrrrrr c1
1,
16
T 15
E
a 14
0
0
13
12'
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case44:
Hs = 11.1 ft, Tp = 9.0 s, Dir = 172.9 degN
Percent Occurrence = 0.204%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 • �rr�����y��;�rr���r;;�rr��¢�4y/�y�y4rryf�a/ y►rl ��/���y���r�ry��'t�fFt�Ff�'�r'�r' `� ;✓�����!"T j�' ����i�„ I
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16
T 15
E
a 14
0
0
13
12yf�ri yl,yir r�t r� yl 'f�tf,�' r1�91MV
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case45:
Hs = 14.3 ft, Tp = 9.6 s, Dir = 173.7 degN
Percent Occurrence = 0.029%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
0
V
13
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
E 15
v �
a 14
`0
0
V
i-
A
13
121t1�6�{ti��l�4�ky�t�¢�F�44f���>r�i4��i4e��4tiik1;4�r��i4�4�;4�4c�t{c�r�l�;fr�if!'�:
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
MIA
0 2 4 6 8 10 12
Significant Wave
+Height Existing (ft)
17 7rh.Lllit�ll.rtr�:alrt.t.�t.rtiit ..
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case46:
Hs = 17.6 ft, Tp = 11.2 s, Dir = 169.7 degN
Percent Occurrence = 0.004%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
0
0
V
13
17
E 15
o �
a 14
0
0
V
A
13
12't�M'$Y�h'��tr`1i�;rrrtif�11j11 117r111111111lr111rglffftOt %it's�}fr�rrrrr✓ . ,i'rrr/�I��rrrr�rrrr
c�.4��t.�:x�::4fkffe�;r.�?,�r�rlltfr4f?l��tlrl��r�t4G�t!rfct{t�r�3f,�/'�'l
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 t1'," flJfljf�}
fi�1f!!.+_�lftrtirf�flf�fllirj�r:+�+.�.. .v _ .....
16
T 15
E
a 14
0
0
13
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�;4�4��'if�4�1{t}f�����.fi� �'f✓'rr+�',5rJl�
694 695 696 697 698 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case47:
HS = 20.7 ft, Tp = 12.0 s, Dir = 175.7 degN
Percent Occurrence = 0.004%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
0
V
13
17
E 15
o d
a 14
`0
0
V
13
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L�t�4��Lytx�t,4�}4�E�i&�1l�,�!llrlL�?r'r;Lrr.Tr'af��tYi,4.4!(,4r?itfil�tiJ.E�Ir.Ir�;;'%fri:',as'rrrrrf��lr�l/FI„Ilrr,rll.1,1
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+Height l isting (ft)
17 n!!1lTlrllr�rrl� �rr�lrir�rrrr ;��`_' af��aW����
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16
T 15
E
a 14
`0
0
13
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,���'�;ir}�'ifr;�r.�1�4�4�;4��a�tt�r� rE.E��.�i� %; ✓ff ;iirll
694 695 696 697 698 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case48:
HS = 25.8 ft, Tp = 13.8 s, Dir = 169.7 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
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t1,4�y:.x�7r4�?f�tt�i��?f�,ft7r1'L�4'r;zr}.4'afi�r,4.Gr�,4frtfitFt�J.Er;!'J'f :`;it;,Sal'rrrl.I,:fll„r�1.1,�
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
'+Height
l isting (ft)
17 nlrlrTillir�ijrlr�tr��rirrr rrr ���"' �,���L�f����
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16
T 15
E
a 14
`0
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T
13
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c14�'rLlx�i4f4s�4�rr,frL1'��'.'r;irr'ir1;r.;;4r°4;4aLt�r�f�.Er1i� ✓�;iir!%
694 695 696 697 698 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case49:
Hs = 26.8 ft, Tp = 14.2 s, Dir = 170.8 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 +V $4
16 'C
T 15v� G
a 14
V �trrfr
.. t
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
trr�rrf�
¢ r lr ,I1�f�r1 1rr��I'rr<r rrrr r r
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¢ ¢ r frrj¢rr¢rr�rrr rrrr rr rrr r j �f= ;4f; `'
14
0 r r¢rr¢'irrr�rrrrrr ¢'r1r 1 fr /', ;"
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13
rrr r trrrrrlrf{
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12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
E 15
s
a 14
0
a
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case50:
Hs = 2.7 ft, Tp = 5.5 s, Dir = 187.0 degN
Percent Occurrence = 1.607%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �1:trrirlil�P:ti/N Ji: iNJ?7i7F.�.. .t�� rV e4 (aL. it s..® :.: " -:: '..
16
T 15
E
m
a 14
0
0
13
12
694
695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case51:
Hs = 4.5 ft, Tp = 6.4 s, Dir = 187.2 degN
Percent Occurrence = 3.474%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 �'! �y �y 4'�t�� y'r"g't rtir�r'r� 'r jr'VI., I � 1 rr�r��f 't t1!'''' �✓r'r',�rlr!rir
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 hlrtrtrrli:`s'di 1J�lrrrirrrer ".1L� �% eti
16
T 15
E
a 14
0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case52:
Hs = 7.9 ft, Tp = 8.0 s, Dir = 186.7 degN
Percent Occurrence = 1.063%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 r}/yy�'llr> �rrli'rrrt�`����t1�,�rrl;''''�f�f�'�'r�l�l,Ijj��,
694
7 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17�17trt_lrli:`>'1jilJllrlrfiNJrM .t�� :1% eti
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case53:
Hs = 11.2 ft, Tp = 9.2 s, Dir = 186.9 degN
Percent Occurrence = 0.232%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 • �r�r¢��4�ri��¢��1f�ti�t�i�'�'�'�'�>����rf�r►f�� rf���Fr�'�I r �'� '����'�'�,'`>rl Y?l
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 k ^/
16
T 15
E
a 14
`0
0
13
12 • ��'r�4���yyrr'�g�y�'y�t�4'�r�i r'i'rr;,r��; '` f� �',�,�✓,�/�/r
I' J
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case54:
HS = 14.2 ft, Tp = 10.0 s, Dir = 186.9 degN
Percent Occurrence = 0.050%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12�rrrryy}yrrr�ffrl¢'+rir�rl"i>rrrir"ry+,'r�%rrrrtS�I�rrr1111 r r ����//if/'ri1/}rri �
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694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
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16
T 15
E
a 14
`0
0
13
12 4rr ��tr�ry§'�y�$'yf' ' i i rir rr�' r' rrr + 1i�;4�Fr,11'1 r+, M//
694 695 696 697 698 699 700 701
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case55:
Hs = 17.6 ft, Tp = 11.2 s, Dir = 186.6 degN
Percent Occurrence = 0.005%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+Height l isting l(ft)
is\
17
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701
x coordinate (km) —�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case56:
Hs = 20.2 ft, Tp = 12.8 s, Dir = 183.0 degN
Percent Occurrence = 0.001 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry sl C9.
16 'C
T 15 G
a 14
00
V
13
,2
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
16 �lT�r 1 � >✓f �� � �
15
Y
a 14
0
'' rrr rrrrrrrrf lr�,,l� r �r {r f.
13 rJ rrrirrr'rlr' ri/jr'�111 f� �'1" f !� r�rl>r
,�r� r r rr�rrr��rrrr r
,2 err% r i
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
E 15
m
a 14
00
V
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case57:
Hs = 2.7 ft, Tp = 5.1 s, Dir = 202.1 degN
Percent Occurrence = 1.613%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
iL'
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 WYfiWWPJr1d" ftrrZ_,.r'.r'At6V_ .tip rV e4 (,L_ -,t s..® :.: :: . .
16
T 15
E
m
a 14
0
0
13
12
694
695 696 697 698 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case58:
HS = 4.5 ft, Tp = 6.0 s, Dir = 202.4 degN
Percent Occurrence = 3.239%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12'l�pf�r/!)1'rr"I pr" �1'te}It��itr�r f • �l frrj✓j f
J 694 695 696 697 696 T 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
171J1FrrtrirJT.t."Pn -.ti,�_ rV t4 r,L_-,t s..® :.'.
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 598 699 700 701 702 703
x coordinate (km) -�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case59:
HS = 7.8 ft, Tp = 7.6 s, Dir = 201.7 degN
Percent Occurrence = 0.727%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
694 695 696 697 r 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 'rlNtrtli>i:'l�1rt'J!'Irlrrrir ss''ih. �.t�� rV t4 .,�_ -,,t s..®. \ -.��:.� ��- -_
16
T 15
E
a 14
`0
0
V
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case60:
Hs = 11.1 ft, Tp = 8.9 s, Dir = 201.9 degN
Percent Occurrence = 0.189%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12'?rl�! tr�'rl ,jJa 1/T /,✓� t�1'�l�}it=r1'''' f f/'/fit' 1
694 695 696 697 696 J 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 rjr�lfflj� t , r'r1 p 7
rjif/lf..rlrlfl�>Jl�'ll��lrr✓JJ . ,r � .� _ .....
16
T 15
E
a 14
`0
0
13
12 1r,�7j�1,Jf1,' r,1 ,iltj� r61
",�� �rl.Nj)rfifT��lilt llt'I .l } _
694 695 696 697 P 598 1�7 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case61:
HS = 14.3 ft, Tp = 9.4 s, Dir = 201.9 degN
Percent Occurrence = 0.040%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
rti� 1pr� Y
17
16
T 15
E
a 14
`0
0
13
12 "�r' L9�t��N1'� 1 /� .1 r•�l�r 1 r .f j11" �f1/%rtr�}t��tTriri/ >rr;�'r,
rr�i�r
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case62:
Hs = 17.0 ft, Tp = 10.0 s, Dir = 199.6 degN
Percent Occurrence = 0.003%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry sl C9.
16 '�
15
0 14 / ,/,,�r,%dr''�r,,,✓ �r r f ,..r-r `yr/r:.:
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
} d �
16 IFf
15
E jrf � f ✓ » -
l�;,',;r, r'
a 14
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
E 15
a 14
00
i.
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case63:
H, = 2.7 ft, Tp = 4.9 s, Dir = 216.8 degN
Percent Occurrence = 1.319%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
E
a 14
00
13
12
17
.
16
15
E
/
a 14
00
V
1.
13
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17�1"1rr�rprt� llilrJ%��'�J3u..-.SLR rV t4 aL.it s. \ ,
16
T 15
E
a 14
`0
0
13
12
694
695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case64:
Hs = 4.6 ft, Tp = 5.8 s, Dir = 217.1 degN
Percent Occurrence = 3.141 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 / 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 /?t�rr ✓r l��frP"trrrP's�i}a� -. t�� rV t4 (,L_ -, t — \ : :
16
T 15
E
a 14
`0
0
13
12 ��rr't��J"�✓�ft'�fr" fj�����f�11'iFt +f Ytt71" '� j;�;
694 695 696697 696 699 700 701 / 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case65:
HS = 7.7 ft, Tp = 7.2 s, Dir = 217.4 degN
Percent Occurrence = 0.666%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 �l'�trt''rn+'�,i"7l'r'�r.;.�`r;,'���,;r�,,�'l�r,�`r,�'1''����'�t�11��ftrti'•r f� �,/>
694 695 696 r 697 698 699 700 701 ! 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 t trr'r�✓l� t.✓P!'P"r'rr 1,r'"r ".1L� N tti
16
T 15
E
a 14
0
0
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case66:
HS = 11.0 ft, Tp = 8.3 s, Dir = 217.9 degN
Percent Occurrence = 0.115%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12JJ.fj/�jr�l.drP
PP
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 h4"✓tlrrJl� tJi!"r"trr 1 -.SLR +V t4 ,L_ -, t — \ \`a= -'
16
T 15
E
a 14
`0
0
13
12rtr
694 �P 6�95i �J696f 6197 f j 698 } 699ff 700 1�701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case67:
HS = 14.2 ft, Tp = 9.2 s, Dir = 215.3 degN
Percent Occurrence = 0.015%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12.Yl��"/%/96
%�J'J''/f�y'y't1'��/ //��
694 P 695 6'916' � f 697 r J696 1699'1E 700 701 � 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 .✓.t�rr✓.l� lJ` frf".t.Yr d�ir:,_. -.t�� rV tt aL.-,,t s..®. \-\V
16
T 15
E
a 14
`0
0
13
12 �l M 1,7 J ear ri g f r,'T" +',i�'�' j"'=�44iTfrr ' i` r r' jl!
694 Y 6�95 r696697 596 699�7 700 701 / 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case68:
Hs = 16.8 ft, Tp = 8.3 s, Dir = 219.7 degN
Percent Occurrence = 0.001 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry
T 15
a 14
0O
13 ff
l
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17
f d �
1615
>
14
0 } j�
fffl� �ffp/Ij f lrJi % %f.'
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
17
16
E 15
s
m
a 14
00
a
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case69:
H, = 2.6 ft, Tp = 4.6 s, Dir = 231.3 degN
Percent Occurrence = 0.688%
From left to right and top to bottom:
> Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x ocordlrate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
171t rrr���r "rr/rilt'J't'�.�rJS,c.. ".1L� N t4 .,1_ -, t — \
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case70:
Hs = 4.6 ft, Tp = 5.5 s, Dir = 230.8 degN
Percent Occurrence = 1.609%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �t"�id ✓ t/�lri��l�}lr�t. ". t�� N tti ,�_ -, t s..®
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case71:
HS = 7.8 ft, Tp = 7.0 s, Dir = 231.2 degN
Percent Occurrence = 0.367%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 �/J.�i%'�f1„+r�r'%%�✓��j✓J.+�fJf,{� �jN�tr�Tt�{TtT�t'1' f,�! � �J���
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17�tr✓rl✓�� t✓llr%rr� lnti. -.t�� rV t4 (,L_-,t — \ .\ '
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case72:
Hs = 10.8 ft, Tp = 8.3 s, Dir = 231.0 degN
Percent Occurrence = 0.071 %
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 rfi�✓d rNr�; lr.��l'�r✓.i i ram. ". tip N tti ,�_ -, t — \ \ =
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case73:
HS = 14.2 ft, Tp = 9.2 s, Dir = 228.9 degN
Percent Occurrence = 0.007%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12J7 Mf ifl °f�%�sjfJrf f ✓Jr v.�r� tr}l�tftTr'''" , f N,
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
ELA
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17TYM%r"r,&<!'.1r'.iJ'3' ".1i,�_ +V t4 "a _ i t _ \ \`a: - ::.-.
16
T 15
E
a 14
`0
0
13
12 %'J�1�}rJ`tr�r� �!.irj'frfffr r,��,�,Jj� t}�T{�frr;1"i`,f,r
r' �
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case74:
HS = 17.4 ft, Tp = 8.8 s, Dir = 231.2 degN
Percent Occurrence = 0.005%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
694 695 696 697 696 699 700 701 702 703
x ocordlrate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case75:
Hs = 2.6 ft, Tp = 4.9 s, Dir = 246.5 degN
Percent Occurrence = 0.301%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
IV t4 (,L_ -,,t s..®. \ - =
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 596 699 700 701
x coordinate (km) -�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case76:
Hs = 4.7 ft, Tp = 5.5 s, Dir = 246.3 degN
Percent Occurrence = 0.539%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �t"fril✓ lrlitrt1199 . -. tip N t4 .,�,..t' — \
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case77:
Hs = 7.9 ft, Tp = 6.7 s, Dir = 246.4 degN
Percent Occurrence = 0.190%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 `%> �'I' �p t �1ttJ�lr''r f jif.
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �t"%ir��✓ JrJ trs✓�rrllJ ram. tip N t4 ,�_ -, t —
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case78:
HS = 10.8 ft, Tp = 7.4 s, Dir = 246.9 degN
Percent Occurrence = 0.039%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12!�J%/fJf%ff�}rrjlJlffrr1� �r {1tT;lf p '�%{ >r
/> �f l t 1y '
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �t".✓.ii�.✓. 1rJr�t�%/ Pry. -.ti,�_ AI t4 (,L_ -,,t s..®. \ - '
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) -�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case79:
HS = 13.5 ft, Tp = 7.5 s, Dir = 249.3 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �t"✓rfisfr~ tr��fi -.t�� rV e4 r,L_ -, t — \ .\ .
16
T 15
E
a 14
`0
0
T
13
12 N,��t��r'rrrrrri ;rrf /f ✓,�'i
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case80:
H, = 17.8 ft, Tp = 8.6 s, Dir = 248.0 degN
Percent Occurrence = 0.001%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case81:
HS = 2.6 ft, Tp = 4.8 s, Dir = 261.3 degN
Percent Occurrence = 0.169%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17 rr � .� +V $4 '.
16/
E15
a 14 %%f Il
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 16 f,r;>
'„ -
T 15fff
13 1
j,>�/r�i
�Ar��{%�'� it
12
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
E 15
s
a 14
00
a
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case82:
Hs = 4.7 ft, Tp = 5.4 s, Dir = 262.0 degN
Percent Occurrence = 0.321%
From left to right and top to bottom:
Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
iv,
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 {�yl/fr�l i/f��/%�Jlr�. -. tip rV tti ,�_ -, t s..® :.: : :
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) -�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
T 15
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case83:
Hs = 7.8 ft, Tp = 6.3 s, Dir = 262.3 degN
Percent Occurrence = 0.168%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 �ti3/J ✓ %1'LL�J/i�1 �Y C. -. t�� rV t4 (,L_ -, t s..®
16
T 15
E
a 14
`0
T
13
12
694 695 696 697 696 699 700 701
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 2 - Existing) (ft)
2
17
16
13
12
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case84:
HS = 10.7 ft, Tp = 6.9 s, Dir = 261.3 degN
Percent Occurrence = 0.040%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12r;r�/'�>f!rr �> t tTfgtrrtrr''pr/' rfs'r �i'f�� ,r
/:,r/%1�jrf�l f/°f_/�l�s�rlf.'fyf%
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case85:
Hs = 15.0 ft, Tp = 8.2 s, Dir = 259.0 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 ir
�f�/ ��T r t1litrr1 yr� /'! �rf f¢ff
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 1r�i/lr�r:� i�/1 ".tip IV tti
16
T 15
E
a 14
`0
0
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 2 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12
694 695 696 697 696 699 700 701 702 703
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Template 2 (ft)
Offshore Wave Case86:
HS = 17.9 ft, Tp = 8.3 s, Dir = 263.5 degN
Percent Occurrence = 0.002%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 2)
➢ Changes in wave height (Template 2 — Existing)
201912020 Renourishment Project