Oak Island Renourishment Project_Appendix C1-Waves

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
APPENDIX C1
Predicted wave fields for Existing and after -dredge bathymetric conditions
and changes in wave height caused by after -dredge bathymetric condition
Template 1
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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���702���703702���703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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
E 15 G
a 14'
T
13 ' iiii �•
12
694 695 696 697s 698 699 700 761 702 703
x coordinate (km)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 1 - 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 1 (ft)
Offshore Wave CaseW:
HS = 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 1)
➢ Changes in wave height (Template 1 — 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_ Existing (ft)
17
16
Y15o a
a 14
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
E
m
m
a 14
00
V
13
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 (r(ft)\)
17
16
T 15
E
m
m
a 14
`0
0
T
13
12
694 695 696 697 696 699 700 70,
x coordinate (km)
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - Existing) (ft)
2
17
16
T 15
ff
m
m
a 14
00
V
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
16 C
T 15 - G
E �
Y
v
a 14
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
703 694 695 696 697 696 699 700
x coordinate (km) �
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
UL
16 r :.. c
T 15 �':S':'.:',',', S.
v d
r:
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 1 - Existing) (ft)
9.
701 702 703
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — 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 Existintg= (r�ft)17
�\�j,
16
T 15
E
a 14
0
U
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 1 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 N
r4blij
16 C
y
T 15' G
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
V,N sti
16
T
15
G
E
v
a 14'
°
','1`13
, t,`[t`t,`,, t\ tt; t`; \; `,ti 111 ;;i 1t`;ti •'Ir ri
,,
`i,s�'t"�s`s+st'i s ` s is+si `'i, ', ir`lriillf
�s sit is`s�si1i ; ;s1is s ` , i ili li
l"
t
t'itilr
12It
it; 1`[11 I'
It t
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% Sti G%
c
16
15
G
E
s
o
d
a 14
o
O
13\t
J 1,
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 1 - Existing) (ft)
17
16
T
15
G
x
v
d
a14
' 1++1� ;
13
` i �rlrrrrl>IIJ'
ti;[st s;`w '1,±t+;;ss
\
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
O
0
13
12 5 t+\\\+t `1t t\ltt, t[11t11\, t\'\i1\tt `it i+`'t St t\``t'•\t`•'•i• " 51`{r'rrrr r11 t', t', Ir
i\C�`i �5tti:.i�a\�li+:'.i\.5'tit5�`i .!r1a.i\��ti ;���t.l'•\\:`.5`•` .r�lirl!��\?,r�t�ii\1d:
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
G'j _
16
T 15
E
m
m
a 14
`O
0
T
13
12 si` tit t\i`t't5i s`c�\iitt 1i \i' `ti, 10\' }{rr rri4ii r'
t\Lt`t'`5tt�t`1,1',+\`:\5t.5`t1\1t`I',!t11i\ttit`t lt5��t+\\•�\+\\.�'••�•��' ,i•Irlr!ir'41r r, in 51
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 1 - 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 1 (ft)
Offshore Wave Case09:
Hs=4.4ft, Tp=9.4s,Dir=112.4degN
Percent Occurrence = 5.030%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
N
m
a 14
`0
0
13
12 `t tt 1`t+`t+il+illi ,tli ,lll'Ittl lllllll °tllilt tt ilt it,
+ti�+l, ltt i�iiittli+�i1.1++stl)tlLllu:i sl�l�s �tlii.i+.l .tc`i err tl tt ir.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
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12 tit ttttt s+ts t,titIt
ttt'�iit it+itl;,t1+`t"t`t ,ti `t`t'tr`'i',f��`,�t ff��llfffifrrfff��ri
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 1 - Existing) (ft)
101
17 ,1;,
16
T 15
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
0
7+
13
A
iifr'.
`.Lt,, +,'?e,'i', ✓1�r.r.rrr!r �r,'
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+Height isting _//l (ft)
17� ',
16
T 15
E
m
m
a 14
`0
0
T
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
m
a 14
`0
0
13
12 ','t:'°;0'1'+''';;'+;';;1;1t1''' '';'T'''' ;%�;'17ir; `s°;,s:•;ri;r.
+i. s. t+.+ir+ .!++ +.r. or ��r.l, ... ✓Lrr Jr.. lr..
694 695 696 697 698 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+HH6gghttE/existing (ft)
17
16
T 15
E
m
m
a 14
`0
0
U
T
13
12 Sii ;t+it,'it r°+t+ i'+,;',',
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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
16
T 15
E
m
m
a 14
00
U
T
13
12 S;i;ti''t;t;'t'+i'`, 'r', ;;'�ri'';'r i;''''r''r
i'it pis`.
694 695 696 697 696 699 700 701
x coordinate (km)
i 1,
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - 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 1 (ft)
Offshore Wave CaseM:
HS = 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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
Al
16'
IT IT I'll
`t,,'
15
IT
G
y1T1,1,1
I i r r,
,1 t'1;;;, , t,r;,+,
, '',rr'r';r;r
o
,'r' +r �r i11, 1,
, I ' ' r , ! f r, r r ,
131,rit,',
r ;rr� �
''
e'r ,', ,',, ;',,,',�, r,;,r err"r
'; r,'•.
'�;;;rl
rrr';; �. �,::':';'•
, r rr rrr 'rr
; ,rti,
•'''`�'; ';;
12
't'It''''�'''''''�;'''�i;''''I�. /1��f�r+%';; �I,
r+rrr , r! r
r f'r rrr, ;'ir,
',t V,''' ;'r''''r''''',',','
;r+,
;' ''�'�', :••••• , i
';'"'f''ri
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
-. N
G%
,6
% r ;
I. "
IT
T 15'i,'
r 'r„r
a14
';;;; 'e ;'r�','�''rrr',rr
,
,r,t, �;��';�'';',; r,';r;';r; ,,
+,
,r ;r
t„'t r r rr , ' '' ,r,
I'
;t' ;; '',},�,r;'rrr,';'
,', 'r,1't I
,t
IT I
1' ' �'''r ; ; ' ;' ' ;'' e'r' :'••," ; :: • • ; : ; •,'rrr)J' l ;; : ;; ; rr r
12
",;r11";�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 1 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
16' C
;r;
15 urr,,TI
G
s**''''P}
''''r 'i;'r rrrr ,' 0
,,t t'"e,' ,r' t ,r ; r, r
1 r It I
r' ' r rr
14 TIP'
pO ;; ;;r, ,'ri
'",
13 ','f r'r�sft r" IT;,i''
t;;S�tt�,r�;r;,�;,;,;;;','r;';r;�r'r�;�;r�';; �,'r'r';', �,'•. �. �,•::•; "!. •, 'i;;';;r,!',r; ;`r
, r rr rrr 'rr
;'''`i�.'''`f fC • %!if%'+";;,,%��,
12 r
;, 1',; t;','',flit ;'I''',;t;;;''t',;'';';t 'rr'�'r,�;';,r','^•f'�;'�'��• err%r Iry %Irlr��r'rri:�!':rr. r
'fitf'I,�t if fit; r';' 1'r;',l t''; ;'r,;"• "' 'rrrr ll; t'rl ll >ijiirrr'r'"
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1— Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
O
13
12 '1ZS.�i��!�1�'st`s�`1�,+ti`'`;+`t�`t1`;i5'+;;`;.,:;;" 'rrl�;Ir{t'ir`+ 4�
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)
rr i ,irr'i''ri'r',r
17 r'+i'r''rr'r ,r
t,r,'r', ' r „' ,r, ,+r r rr �• V
16
T 15
E
a 14
`O
0
T
13
12st�st`ii�tt�5��`is+i+ti,+,`lsi.:;;.s;".�jrirtiryjlf�rt��""i
tis,ti`s! ��}+�:s�n;S.1�+�ts1`1 :!` .`+`.i`, ,`::.. d.i,�,r.r.�1}�'
694 695 696 697 698 699 700 701
x coordinate (km) —�
Y"i,, ;;r
702 1 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
T 15
E til
� Sli
a 14'`s
O
O his1
13
t`
12 +Z
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

1't';I; Irlrl r; l'r'f;;,
15 tii;i'i};;;};+};'t;'';''r;r; ilir''J;i'ri;;;; %t ;.. I.,...... :';:; ;. •' G
;';,'....•�,',
r;1lir'r ;%;'ir' 'r,' l:',
1I;'r ;; ;'I rrr�,, ;:��'',•: ;`
a 14 }';t+, `}f,';;'_},%'+'''}}iii'rtY4 f';;rr;;'il;'I'r;',';;;,;r''t,'rr
p 'S'}=s; i',, tt ,, ;f� ,}}}'r ;'r'%r'(;;
13
+ rr 11'r 1 f
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)
tt III1 t+ tlllill" r,' rl 1' j'rr,rr '-
'I;
=\, It�is l' itl,I,l 111 r'11'I; It rr,r'lf�i''i;r,1}
16titr}'r;rrl lr''r',rr%Ir'III,
'''1',r,rr�,;,,,, ° C
1',trr'ir,'1
T 15 �;f'1'S+'\;ti;;}'it;'+,;;;'t�}', i,til; tl'1'�r ;lf �lr'i rrri r'r" r';i,'I:,%ir;'�'.;",; :�-;:.•,.,, :._.
ti,;t i,tlsl;t,}},t, ,;,;{, Ir, r ;rI ,;%%' :;ii: ;":'.:.•';= G
E %" III I\itswill I,,,'}};+ir,'tt'; , t',illl ttln' Ir'e"ii �;; r'r'1, "�•;:,'�',•;
s , , '' Irl �r%%,rrr,r,,, ,. .., ••- .' p
1
}[115111 Witt, ,+I'I I I I' ; } ;, +r, rrr r I r',';;'r',',':'':; rr;','�•r.•.•';
C }l;}}t;}t}}�; 1�'+''I''+'1;';til It 't t''+ }t, ' t j1 ; r t l ; ir','i . rr„ri',r .'i'�•i .', it,r� `.''"', ...
a 14 1�}5'} ;}f+',' +i' }',}'+ ; i'I'rr; r'r; ;'' f ;: r', ;',';,
%I
T 11 l 1 1i 1 t1t I+t trrr t+s, r•�``''' i''t •:
13 4 , ,+ , ,+ ,+I I, t , t t � , r t t ,
s'\' }'I�S}�I S��t',+,5''5�1 ,� '` 1 1 ,S\',i} ;;; �;ii'�`i <<r
,lllt�t,�,+',''t' 'l1 ��t} �5}}��' syr� }} �` Et1`i `'' '�; "' ;`
i,,11 ,t �t }�, 1} ��S }ts�}'t }� �} }}+�}t 5,�,� 1+�1�1 }5}, 1`� `,,. +', ;�rf I� i' 1 1 I r
12 �; �i lE;�l lti t��;l}'}};;}t}}}�}}� ,}}k�{,[1,+`t ,i`''`I, It f/rf 77 S1t};'l ii i; �I1 +IIr
} �,��5 �s��}S ��,`� �Si }�} }}}}� t`}`; l%`'`�'`; `; `; ;'t; �r!} 741r14[ [t ,,till} I; II,I lI l�
� � , 1 l } � } }i ,,, r fjy I r1I+�i1[t„IIIII,, i
694 695 696 697 698 699 700 701 702 703
x coordinate (km) -1
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 1 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
'ifs ;+'I t t'I i t'; rr'r'1i:
1' I',t
},'+1,iilt'1'+11It11 ,'t 11'r' ;rlrrl rr r', r'r;r
_
T 15
s}?i'�'ttt';i;\',;'t',};;'i't';t�ii'}r,'IrIrI'r',;;:r',%'ii;;;
r',';�•��:�,��t�'�:��;••••-,•:.
v per\
`'}}, }s li`,}};t,t�ti};'+',t�,
t, , rrr r;r'irrl�r��rr:,'„',','�;'.'. ;�,'�'.'.'; .'.
V
'
}}i};}}}I;; t51=',+'}'I;;;i,+t�,
1+;;t,'
,'..•,
, r'r„ .,•� �''':'�'',''; •.
,'
a14
,
}
;1
1,'r
;
OV
1,Il'�
tl 't �ts''i yp 'I S� f,}t 1't,rf
'',; i'I•
Il ,rrr„';'t, s,,, ,i;:,:
13
',r,r,s,,,.t..,'
it;ti}i� +,`iI'Sritit
i,
12
,rjl
fi94 695 696 697 696 699 700 701
702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (ft)
Offshore Wave CaseV:
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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
E
a 14
`0
0
13
12{{{1{{`{'{{{}'{{{{t{}{}{{}{{I{{}{{50{{}4{'{'}s�'4�t; rjrrtrt'r�t',}}�iiri}1}�lrirrY
tt,
„
,;t��'!�!tn
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 r}'}4}i''}}r'r'ii r}'}'rii}r r S"
9,'::la't}:4?}.?',r
16
T 15
E
a 14
`0
0
13
12{{{'{1{{S�{'`{'{{'{1`{'{}{1}t'j}'{}{t'{j{'{}''{'=4`i4'i1; ;.
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
0
13
12 1j1 ',t4t1`1� 11110i1oi ti;tllo ii,�Si;tiy64�4S =' t'r'." ir%.'. ,'_"'J'J rr'r1r�,!,'I i'tl11r11
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 fi'i }'}rr'+r'r i'irrrir'r r�r iirr r S"
i�t, rir rj +'rii�r,rr r'rrr r'rr rr ;, G'l
16
T 15
E
a 14
`0
0
T
13
r; ��','lf,, ; ,.;.,
1 �13�,ti,t�sL�.1},�,tl 13.1ti,t 11 tS�ry.tio4j.S�,j.ti ',+.'r'.'.'...'.:'..'.'
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
13
12 j!}'}�;}�;,}'}}�4`}1t4}`}}}tit�s'�}��}i+�ty+r;',`;',';t,�,,,r
;4i.,y,! , I r';
694 695 696 697 696 699
700 701 702 703
x coordinate (km)
0 2 4 6
8 10 12
Significant Wave HeightFxisting (ft)
17�'{trrt.ti�;1i''rr',r''r'iri�fr�,rr��rr!�r;r;'iiir��`
16
T 15
E
a 14
`0
0
T
13
12 tS�yti�irr1,L�t
4 } } }
694 695 696 697 696 699 700 701
x coordinate (km)
t�rri i � �i iri rrlr
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - Existing) (ft)
2
17 'tr
r '
r'
i'},
16 LItO �
s 15 It
a 14 }�
00
V
13 '4'1
t
12 �rLr
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 `',i►lt��'�y4}r�'4Si iJ1y},�y�}rr'yy iY f'y{'r', ter 1}'r }ltr't;`r`'',',,, �r/r ,rr,r'r`, r'�,lfll pri rrr
�.t A, ,4 ti ei�,rti.l.i.st l�}4.t 1}.t,r .ti�i.�r.ttt,
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)
17iii'1'iil rrrr s'
r'r! Lrir'.�
16
T 15
E
a 14
`0
0
T
13
12t 1, ''''''' '''; i�,/' l'ri✓�i
k4;�1 }s�it�ti�,l�,��ti 4ti.��tit{t��}4St��tStt�:t!�14ti 't'r} �.�.'',',�'a �'�✓rr;1 ii.'r;+t'I
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 1 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16
T 15
E
13
12 11S1 11}r ti'4'yy 3�il'SI4 }r,' rrrrYir 7,' �i'r',r', �J'jfi7rt,'I`rli/%, 'f r'r1r&Y'14 1 }'+,i4,;"r'
./
4i�1.SettSei�,rt�.}.�.stl�}4.trt.t,r.ti�i.�r.ttt.'.:_i::
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
13
f
17
E 15
v d
a 14
`0
0
V
T
13
12 liii!i{iii `i 4!i4,4i�ii'i4iitffi'J i1
7ii iitiCri4r'1'ri'i�4''',; ;''. ' '- ;' ✓ :,�rii� ,s,',�;fi�li ','>, „
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 (ft)
17
16
T 15
E
m
a 14
`0
0
T
13
12�ii'i1i111
iTi'45i4+4iIyitiii+i}Til'irrr4riifir4r`lirtrf�''' :, ;'�'✓r,r�i�!
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 1 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
12 �4ili�ciytiili`1�f��ii44iyi�;tiiiiS4Sci�tii4
`l�l�lildJJ11 v
694 695 696 697 696 699 700 701
x coordinate (km)
702 703
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
'�tt4'�r'rrrt rl rll �, 1'i�''rI'i'i;�;;+'j''Iiii+i i• �, C
16 rir rtrI rif'' I'Irrrrllrr'Itl'
I;fll; tit,trl l; l;i;! j j r; IF.'..I. I,i+,+;rr �.rl.+,•� ..'..
;rrjr,, r'I'filj l,t 1'r 1'il ;I'tt t ;rrlffr,,%!!!I
T 15ritl1rfr'r,l4[/f�t1;lfr;'triti j'f+Ilerri'�iriirri:ii�`i::Il,',"•.;;r:,;;:,-, G
E FtL it rrrrr rr I rrr;'!'t r l r r !jllrlrrrr,+rrrr., '
y. }�tyt{r r r rlrt rrrrrrrr r! rr rrr: rrrrr: +rr.,..,;•'.
r 77} {}4; I�rl r r r r11r 'r' I e troy +r p
�''tl',r,Irlrl''rlr,l'ilrtrlr
a 14 '��} rlt,r'III'1 ;;''7'1;I,'rrttt?,ifr.....i;Ir;';';'%'''',
'Irr;'t'II rrrrr t'rr
O tt l!} r t 1f) t71 ,t rrrrr I t rl rt r rYrltl I•j,:
iS{ l f}/r f{'tjrr lr,I pr ft' Irt rrr t,iiijlij,rr .....
a 'Iir,'ttl,t tr}4?' I1tf.OrF1'61I�i't�ii;lrrr� ':,`•�',','•'
1 s l 1, t r 1 r r [ rr rrff�r; (;;I�•'
13tt}II1tI11,t1t4tt}}r,frtrrrrr,rr�i'r�rs{���{f;1rrr,.',
ITTs) ji'1rrirr r'i'flrrtrrr'rrrrlif r t I }f t � f tf I I I' {{ ; ;1, ,',•;.' ::r;Y,';;'r;
t,r}1I,'�r
12 ��`�}jy�t}}4�`jj4��}`4ti5�4ji{}54ji4jtiy�;¢4S}r }Strr�tr'�'� , r . , „' '�,• ;'trr�r��rr ��� �r;/rjl ��' �I r'I'•'! r
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';'r''rl;r'IItlr;rrrlt;;I'ti;;,-
yr'rrrr'r'1;'e'rrr;rr ;t°rr,r,,ri;, � •n
;rrf Ir ;;{r'I;''Itnrfr{;';I 'iS4;';ri;;%j'ilr',r V
16rf}}}jr'f;ri,ft;r�";',Ir'j�S�',1''j;l'j'' ,%';'; ;;'.;;::',;;•
,1;rr'1;'tirif =r I,, rfr;tit P' 1Ii;;F tllirt'{1"r',,t'Ir,;;:t;;': ;;.•,•',f „ -
I 1 Itf11, 11, rl of rrr,1'Ir111rI 11';I" f'1'I'+'!•'i''ii''`'`r'i. •''.:.'':,•.
�r,lr'ffrrr;',1i;irri;i'r$rrr'r'rrrrrri�jliilr _-
r rt tlr r I rrrr r rr, r ':�'"""::'."�" • .
E 15rlr{{r'`r'i�t irrrlri{frr,ipjrif�rr'
��r r t}r rltrtrrrrrrrr rrrrrr+ %��' �! - � G
s r } {�; 1t!rl lr rrrr I } ;irii:"'•:� -.•: .'.•- �� v
rrrrrr,' +:rir'�r:::: :'.':::'.. •.
Ir,I t Fit
ll I r ,r t rr ,.,.
. .
C l It r It r, ?"fit I I I l r rr f1
0 +lrlf �lri .... ' ..
a 14 }J r}, ,rl, "1, ;rrr!
1 s} rr f I4 rrrrrr r r I r Ir t t rrr rrrr , ,; �...
O 11 �Y l((f'fr }r,;Il II ll fl ,l r ,rrrrrr ' ... "•..
U 4 1t�ll Ilr {1 tYYYlll l �,� r�11 rr rrrrrrrr 'r''r}frfit
l;�;'fit' IF
r„;,'r'r�,�,;,,' :...
13 sr rrr rl r r'rr
{f { rirff;r,;,„'' •' t.;",
s}}}Irll'r } rrr rrrrrr rrrr ��
r}trlrt'l rlr fit r r r
ttr'rIIr'rl rrr'Irtrrjrr trrrrfir ;{{'r;�l,t,•�,':::;
}t1}t'� t'Irtr }Irl�rltrtrlrl ,rrr{rrrr r,, �jj%NI'"'f
'�1}itY Illt srti }i ��i ifI.ir/,t r7ltrrrtl rt rr,rr,rr�; ,.;;�, •', •,'.;:.!/f I,',t, r
}}'} 1 �7lrr lrfr rTr It trl it rtt.''•''�'•:''-`i/ rr trrrr'rr
12 '}}'}} }}}4}`ti44}4}ti4j}y}i 4 i 11;jti4 jFrLftl}"4'r�yr"4 ""ir, �f 1;{r'''}j
�4 y�`i�}��y}rl l,t}I �r �t rl 1;IIf rr', 1i/I ,,, r ��l�rrrrrr�rrrrrrr rll`jrfj!'! 1 1 I %IlNr 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 1 - Existing) (ft)
171t�if' y; 'r`'i1r'�'' it't1ieiit r'rr v
r1 ; 1 f rr ,I r rrr, I,r,I
'q I1{";rVl;r'!,'r'rr;'It'r;iit'f+I'lfft+;; r, "
16rtr4rrr�t;r';rrrr,rt��iiiri`+r+'!�i'''.',:; .... r ., �. C
;1;;;'I;r rt trt li rrl tl' fly rt'jrf;! jrr, 11'l, f//llli lit' •''ri:: .','`..' - ,yY�
I�j �i�l rf l'jl%=i,, 1'?r,;!l lrrr,;;'r :�.ss�� %----
Trrlrrilr,;;t rrr r'itI rjrrrrr,rr!
r' I rrrrr rrr i;;.;. 7•�J7-`7.-- •r. C
_ f 1 rrrr! r,�frrr,rr rrr, r G
{�'{ r
E 15}� 't}r'>;ritrr'r; �';'r;l'{I;r ,rrrr ref f+ i rrrr., :•it:•-.•--
s• p' }}r{I}
�� ; rrrrr tlitj lr',r 7,1 }1', Jr tr r+i....
c ;}; };; ;;r},; irr,t,r',�r; Ir,f it rrr"ii {rr'ii; :'. �,',• -
a 14
orrrltyr7
r, t'rrrt 'r]rjrrrrt r�' tt ; I�rt ��r�r'r'':.:;�•i'
r1r'tlIl�tii'1}{if�{rrrrrrir r r';r'rr'r'rt;l.':,`•„'',,,
I11, ,'I, jI' Ir�r lr! jr rI lr �l rl'I!r'ri rr
13 t}}I OftrI t' }' rrrrrf r rr i, it rr rr r{rr { �riir'rS;'!;'''•''''' ; %1;;,
I,tr 4t }r r fr rrrr
t't't'rrrr''ri;rr;rr�I' It II{,illrlriir{{'r;;
t�1}i4'iTrfrt''t''r}}}rrr!};rrllrrr4rlrl,�rr��r;Ir't,'.,,.••"';
12'11't}4}}}}}}4'{}}}4rr'14r,'r64Tr it't';7r�rF,'; :' ; ,•;:; i; 1�r11'%iii�''r;45;rtrr
}}}}}}S}}}4 }ti}4}>ri }S }f}rti };44Sr44'� 44't4r'r'> }4'; '• ''- ;'''+'rr'r�i'ir;�>'r'rr;,; �f1;1! ',rr,
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

, r{
16 +tis}+4}ri}'{`� rrr' {r4rr r r
P i r{ ;r'rrlrr rrrr,rrit I" rrr
}'yr�4 „r rrrrrrrii'ii=}'{,rrrl�r,r,r;',
t44L4���trt,,s+ttt4{41�r 4�i'rr��rr�fT,rr,r,i�r'%r'1%!rr';;.';;�
k� �E ,tt 34L4 4} 44ti }4f4 S; S rr� 1 j�l�ftt r lrrrrrr r
rirrrrlrrfir=
t,t4}Y1Y} �44 t,}'� r rr rrrrrrrrrrrrrrrri'rri G
y 15 4 4} r r r �r� rrrrrr rrrrrr,'r'r;;�;;�;;;'•'•,'•;•.: •• c
�` is s,s,s , 4,}tr r r L 1 r rr rrr rrrrrr„ rr •
}irrrrrr'rrr'r,'rr'lr',S
= �
o
o
E441L}41114tt,it,,4�4�r��1,4,4}t}44t444L4}r4rrrr}rr�lrrr';,
,rrtr.',;
�,a 4 } 4}L } ¢4 F >r4rr+r r rrr, r,r'�'r,'.'�'.':r;�,'',�'.�,,,,,.••... 4� 4 4 L4 4 44L}4 4L44};4
r rr, rr
4 44444 4
t¢4 44}`!
13tlLtltltitlS
1 L,tl, t L41S+1tt �� 4}t,'tt,t„i�i' 'r 7
t St tt4'4,S'' St{L � � is 'titi` r" illy
12 �t�t��4 ttt4444444444t441444444444444444'44444+ttt�t\��;{4�4t,,' j �¢¢4 fLrr4rrrr;f4� r{fir ';r,
4tl t 4t4 444 444E 4 444 4 t i, t f
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)
it
,trf'�'t'}'} }t`�'rrrr'i�'fr 'rirr c
16
1,t
l44 1{ , tt +(r4 Yj rr {[ ' (C r,,,'r.:•.
j4 ,,, t t,+ jt7444 T'1 T 'r ti(r rJJJr,)r rr rrrir r; rr'r�riir�';: i:.•'.;•',: ..
4�is'r+'+y44444}444}4444,�t4;r,r` r��Ifl{r';rii;iri;r;:;,r,...•�.•.•,.•..-.
t } 444J( it ,,� �Ir rrrrrr ,r rrll,i;+rrrr••,"•,..
15 4 ,+ 1 4 , rrr,rr r rrrri,r r C
j ft ,I,IS 1 4 ,t r11
s ��4TL �4�L}t4t44yi'�r,L4`'`T '` rr r rs�r'r';';,;;;r'r''';'; vQ
` 4r, , r` t , rrrrrrr rrr,rr', '�,,,,;,•,.,.
4 4 S�4toss r4ti1+, + 4 4 rrr rrrrrrr, ,,'rr'
4441444 4,tT4ttt+ 4}4 1r,=I�/r:,r;;,',r;r,r;,.;;•',';.".,. �.
14o
L tt L 4 4 4 r, ,rrr rr /;rrrr/,, rrr`r
o
�t� tll� 44 444444444 4444 }L4}} 4 rtrrrrrr;r it rr,,,,,',,r .
r;r,rr„tt; �'; .V I, `' ; r
It
!
r }�er'''fr1tt�4;`'„`t'�,'
93
t SS t 4i4tt i, t s`ts t`ttt,r, Irr
tl't14414tt'+tS'+'444
, „� t,t, 4 ,
14 ttii, t 44 S 4
4t,� , t t t 144 44 4 L 44
12 ��S 41t444 }41 44 4LL444444+'4�,4t4 41,`,``4';} 1 rirr �r,rr{f
����14ktt�44`4444��tLt4444`44t44t444}j44j4444L44�44'!t't}1i'�`�'}►',� f�r�y�4 ���4rry;�4� ,rrr ';t,
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 1 - Existing) (ft)
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
rr{{t YrJ 5 r,r r1r,r C
16 ii'i,Lis4s44}4,y'r'f,}#}1+44'4tS{fir,rl4'!'rr}'rrrr5rri'r4}'r S rrrr',r,
r,r,;rrii'rirr„rrr, r,r,
L4y��t+irrt'tt, �44 r�'t'},`rrrr{ rrr,rrrrrrr'1,{,r,'rr�%;
;5;;%';;!!;'•'!•;•;::,•,'.��:
t , ,[y 14L 4 i , rr ��lf✓Ii I{r';r rrr rrrr„
ir rrr'riir•''iir,'=�;:;•;::: -:
E 1Yt l't,s„Is44,4t444,�it ,}, r rr, lrrrr rrrr, r,r ,', -
rrrrrrrrrr r,r,rrr , '
„rrrrrr°Irrrr'rr,.o
rrr%'
14 4144L44ti }'44 }444444r,' rr}r ,rr'i,'r
t 4 4} 4444L444 4L444 }44}}'r1 r rr,'rrrF,r„rr;
�} �4 L 4L 44} } 4 �44;r'rrr'r ;',;;,,,,
a It t } rrrr{rrr'tr,f„i '', ,'rI !•
It,t,,tS ,i St 14 , rr','rrr',+titS4i i 'Y
13 L tilt ittl 12 �4 1 14�t4 144t444L#;L4444444, 4�,t4,4� 41,1 t},t4p; U ri �l,rr{6 , ,, �4ttt4t44444�444t4 44444 44444 444444i 44 44 4'4 t `{�',t`�') ►' t S i ' L,�'rr''rr;" {_{{ + r'{
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17
16 t , t 1
Y�itrttttr t � /(yFir4
!r f,rrrrr'r >
3rr� r'Frr r§4rr°rir�rj,r' ;,'r .'.':
15
rr,r}
m
�; �r'r.'i'r'r„...
a 14
13
t t[t,FFit�ttt,t't}}#+F�
12
[[
[[ [[[[#[[[[[[[[[#%,[J
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,�44t''t�
��ryy}rr}�I�T�rirlr�rr;�y'irl=rrrri}' r r r •'• C
16 t4rrrtt rrrr r�lr'r�rr
4FF t FFFt, {,+ '4} +
11+ r ,r'Irrrrrrr',rr'r'
! t� Y�tttrt t � }rtq]J �r1,�t rSLrrrrr rr r r';r'�:r'�';;•'. _
t'
}'']�Irf
S tit }t}rtl�l rrr i ��iri':; ;•'•'.:
rr
Er�li�rrr,r✓ri,,."._
15 f F t rrrrrr r rrr
t,tlttf t } t t,t+ t rrr rr rrrr r,
��;t,��� ' t r r rrr, rrrrrrir,,
Irt
14 [ # F# �tIF}}F} } } } F} rr rrjrrrt r;rrrJrJ
I 1 } } } }} r rr,r
F F# F F t rrrrrr rrrfrr
o44 F F #F }F} } }} r4rr ,r r3rr r,
t } }}#}}}�rrrr'r'rrrrrrrr�,;';s,;,r,,'
F�ttF
ttt [[ #F 4FF Ft F} t+,,�, I r'r'r'✓r4 r
12 `[#t}[[[[[F[F##[Fi[F#[[#Fi#}FFF#FFFF�F#}FTFF�'�FtFF�F, sF�rF t ``' ti ti, I '{rr§ >tr'�
toy, ia, t r �I '7}" r r
[ # [ [#[[ [ #[[ FFF F #}FF F [FF FF 4 I,,I€I'} tr
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 1 - Existing) (ft)
17 �, N sti
a 14
o
13
tt t F#1 it 111 , °o,rr' sr �r
r'
12 '#t�[1[[[[}[[#�##
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 tt}tt�t45y�}t��ilyt�S���SSI11),{�1.11,�'fr�r�r;'(!1J
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 i�SStiri4'trtl'I!LrrS1r.r -.t�� rV eti ,�_/t — \ \ ::
16
T 15
E
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
}.4r4J144 ¢4' tl I44'r *' Ili I'1=''�} ',i r' 'i✓ �%i'r rrl�'rl'ri'r 1 r
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
r�dd{{rr j r rrr rrr I r r rrrr
T�i S�r{� �{rrrrrr�irrrrtrrrrrrrrrrrjf rrrr
flrrrr'rr ,r •. e rjl rrrrrr rr r,r; 16 r� 4 � �1 1 f�{ {fr rlf l rrfrrr ir�'r
f r {r /rrrrrrr+{
r r j j f rrr rrr r f/{ {+rr, a oa r r r
4 4 f ,f r fj f fir rrrfr+
f fr f frl 1 r ,,! r, r •••,�' _
4 r 7'r r )r Il/r !r IPrr{/Jj//J//jfJ/ r ! r''// ;•': •:-..,�..'-_-•�• .:� �:•: '...
1 kr r 4 I r°J� yj 4,f rr�-.-
T Jlrr 44r r r41)yr 1 (J/rc f r/ rri r6f3rf
E�444���l�rrf,i r{rrr rii�r'r//r�iirr�%:�%'�:.__-_ .:""•'• G
s {��� 44 ¢ 4 r rrr,��f,+ rrrr , rr,r rrrrrr,r ;,,!.;; '.••,-.•_:.,.,. ,: p
I, I7t r rrrr .rlrn,r
4 r rrr t r ,rrrr fir' 4}roar','......:...::•.':;'11r¢rr{,rrrr,rllrrr4::::........:..
}}¢ 4 ¢ 4rrr¢r¢' 4'4¢rrrfrf r rr 4
0 14 �T 4�44 r'yfr'fy ¢¢f r' ¢ ¢r ¢'f r ri��rir'i�'::;%�i%:
0 4 4 4¢¢r f
13:1 :St:�T; rl.fLIYVJ11[rf�rr;,;r;�,ri d;
12 �Jj�1}tStl�i4}�¢�t¢�i4}44y¢!yt4i4�t¢�e4{e¢i44r,4��¢{i}4i4�4S}t4i
y rrr rrrr 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
0
V
T
E
a
0
T
13
17
.IJf::.:• ,Trr
E 15
a 14
`0
0
V
A
L
13
12 7ii} 4r1�''r''r4 fry r{4`y4r�'�'��'�'rtf,'%,.;;; ✓J`Ilr1`?
1T1.11. rIff'r ,
� 4,t��t�ttltiE,l�t��t5.44,1Etx4t}.c4�e4rtli4f.i4t�,if.44.45rt t t r�,! Er.✓:,' :: �rra�lr r> l...r
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)
17yfr r44Jr r4yt4r'r4'i4'�i�{i',rrrrr d �
r ty 4r4r4rfrrr''r'r'r 1'ryrrr'°rrrrrrrl� r
Y��� I r{{irrr rrrrrr r r rrrrr
�� � r {!r { r rrrrrrr J'r{/ r'tr��r,r'r'r rr •. e
4 rp r f r !rr rr'r rrr r,rr,,
16
rrrrrr rrrrr
r rff r
t �J ,r Nr rr{rrrr,rrrrr r, „r,',•,,;.•;,; .
'r4irr4rfrrrrfrrrrr rrr .;'✓/. _ _
r''f 4rr'44rrf rrr�rrrrrrf�f rr'r�/fll'I;'';rj%✓ .:. •:.;..
JJJ r r f rrr rrr( {r rr:r � �/, �,.,.'.. _..-.,_ . _•'.._'••_ .'.- G
15
` 4 rr�rrrrr r rrr, ✓rrr/,r;"%;:%'.: _:=_• � -
{ 44¢trrrrrr
II
�rrrrr ,rr rrrrrrrf/rr.;i,;;..... .` Q
44444� rtiI��'rf�irrrrr'r1t4 rr Jrrlf;";';'„%!'.':• O
1a i 4 r�r�rrrrrt4',r4�rrf`rrrrr r't y rrrrr f 5rrrr'r .......... r:
� rr rrrrrr 't r r ',rfliirirfir/%%;',-"_:-.:•'.,'„'
4 4rrrrr'rrrrr4y�/trrr4rrf/rrrrr;rr;.;',:,,,
�'t,i��4t 4� 4�r�� � 1 i { i'r4 4§.4�r'r?rrr �ri!�l rr; r:�✓:/f�rr. , .... . , .
13
12 {1} jt4},1 �4 ��T1�4�r4}t�f'4r'S} 4p }'4`4 F�`¢';}`tr4Y'f rTirtir'ttf'',il,rrr 'rj,rrl'�{Iir'rrt;.. rrr,
4,t��,,�tt1t4E�#�t��t5.44,SFtx4t4�s4�t4�t1t44.i4t�ycf.4��.45�t�i t4r`,! f✓:; i:::.�'r'�,'r3,'r1 rrrrr.{'d�.... , , r;r; t .r.1.
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 1 - Existing) (ft)
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 ¢it'll l'¢4 I,i1, liil,' r},'iiTiE,
4,S4�tiff�¢��4.ti},i�fti;c}.44�z{tc¢t}�,F�t},c4.�}�,4�rtttr.,►.�,�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 Ty 4fryr� 4„�rrrrri�r rrrr IV
i�l'rrfr:rr�'i�:.� _
16
T 15
E
m
a 14
`0
0
T
13
12 }�¢j4}tf;¢4�ST4¢4�¢}4��}�}}}}}�}¢¢¢¢}¢¢4¢¢r}¢r¢¢¢¢{T'tl� � .,'" �i'r�,'rrr,..
t rt4.ti ,}.tItiltc¢.44,c t4 ,}.t r ,..r�....�'��,rut'r�r.,,t't�...,,, 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
tx;cf.444t tc¢sw4tF5t4,t¢.�¢i,4
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
mt; �i�,r 1
17
16
T 15
E
m
a 14
`0
0
T
13
12 }y}I{St1'�'�'1'' ; �`; ,%�7� �rrrrr fiI'r�t'rl
4}}4a4tii`t#.c¢tt44�¢,¢4xif44,L¢tci4�F.t4,i¢�¢4¢tcttr�!fr�,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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
00
13
12}tlit.11 F4y�f�ti14�F4�¢4}}r';J'1;1�f'r�y''4t§4{r1"t,I't1it'l`j'R`'';'; ;%} rlflrrrlyrrrrJ1 11 1FF'I!
4,tartt�.l�.trt5.�.i.rtt�.44.trtt4,Ir.t,t4.rr�.It.,tttl,.�;r„
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)
rt L rr'r rrrr rrq' sL
17 f� f�r�ir'�rri�ry�r4rrr'fl�rrlr�'ir'rfrrrrrr � _
16
T 15
E
a 14
`0
0
13
12 ��}•1��}'F4��4'14'4141T4�14{rat'S;•4p'+1�4r�y'¢4r4r�lr�rrryrJrr�;,`,;},i;lil;'� ,, �{�r�rrrr
4,t5�t�tt;t�till�tl�t4.��.S4rt�t�i44r�t4t4�,{¢t4¢t4.T4�.44t4tt�r`,�11:i; t'r'>J,r�rrli
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 1 - Existing) (ft)
2
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 r'I, Y'tr`r'r4"rrri'r
rriSrirrr4irr'¢1i4r11''r'rfrr,
'r 41r r r 4trlljl � irrrlr'iFFrr"I"trrr'fllJrrr,
rF r {rJFirr'r'f'rrrl'f'J'rf'li;r'r
4 1 4Yf.FrrF/1 r frlr %Fffffrf it�rrrir'rrr o
16 r� I rr rrrrr!!{lj lrr �JI FfJFt 11 rrlr{rri'rr rrrr fir., r, , r
1 f 1 j f' Nrrr rrr rr {rrr,�r.r::
r rrr { Irf Flrfr'fr'ffrFlrfJri'r4firrrf rr,.,.,.,,,.,
�YS rr rl Flrr 1r l /rrr rr r, r.
rr�r I§rrrrrrrrrrifrrrr 1rriFfr'rJlf/ff-
I I r r t l%rr r F!F r r
� r r, ��r r r r rrr .,,,.,^,-'.:•----•... .
T 15 Irr r rrrrrr�Fr¢1, rJjF rJrrr rSl'r:'.� ..l:; .: ;•s:::_.__..•• G
E f rff i{rrifJ�4 f r r ,�,, ,.r..l•..I,:•
v �J yl �rr4 rrrrrr'r rrr ,fr r..r,r,,.rr,,.rr,•,•;......: --• �p
4 iY}rl1trflrtrfjrirfr r r rtrl rr'! rr rl:,:15;';;!`; Q
f r r r irr
r t r rr rrt rfrr rrr t r rr rt r r rr;
a 14
r 1 r r r r %frrrrr,rr
$ r 1.t tr rrrr rr rr rf t rfrr r r It rrrrrrr,r,...'..-:,..
'rrtr(c7///r�1�}frrrr¢¢rrrrJIFJJJ/'F,f%r',.:;1;
� ittl titittf r (7 'rrlFjl�r�7�f r{r (rrrr rtfff�ll rfri✓,i'i'�'',';, iir
13.tt'I.itrttit.tr,r.frl{;Ft4fr,rr.4&4t�lJ{llrr�;rl,';��';, s:r?
11i1,1.]tyrt�;i 44'r i 4;'rrr`rry'rr`��yrr�
12 � t 3t ii Ji,
>1}1�#F4i�1 �rr'r4'�rt } 4§4 �f; ¢§4r�' ;;r>;; ,;',/✓r'irir%i'�r"p ffffj Jj,Jt
4 `��15415 F;4 �41ttk¢ 4rr¢4¢4;�4�41,I); ; . , , rrr rrr fl}I�rrr {{ f
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (ft)
Offshore Wave Case31:
HS = 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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
0
0
a
13
12 4�4�E�}44ti�y}44�{�ii4R}�4;��ifSf�z4t4ii';4¢i4§y,Y,;E�41f`ris
J
17
16
E 15
a 14
0
0
a
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 T`rr-f 4i1'r/)'t„rrpt°r ! rr, -•
4(iYrrtryrrrrllrrr'trr7rrt�rrrrrr r .
1 r r}rrrrrrrr Ifrlrtrrrrrr,
!r 41 rrl�itr} }i }rrllrl rSrrrrrr�r I'F
4rrjj tr! rr11{ lljrrrrr}r}rlrrrirrr{ r'%!.!'r,rr .
r T 14 I', r r rrlr { rr�lr%r'rrr'ii r',ii, C
16 r 1 rrrlrr��lrlrr'r �l�lr{Irtrrrr'!rr„'„irr'
Y rrr 1 rrr rr rrr rr r„:,�r
rr't!�`}r I{rrrllr�rpp'r{/r'lrifi'fr�'irrr,'
f
t r§'rrr rrrrrr�lrrr� !i 1
r r r i/rrr rl lrrr i'! Ti{f
T 15 il'r I rlrirlrr'lrrll+rl ill rlrrrr ........
G
Er rt %.....,,•..,._;
c
4f
16,
rrlrt r �l�r r r r ,..,; ..,.,,':;,...•.-; •.:"-"�-•• Q
�'Jjlr�rr''1{ t i rl�/.J�,,.,.:;,..::•.....••':. 0
m 4 tl rljlrtilt, { rrl rr rr r rr r
rr}lrlrrrrr r ..,,r.,;,';,:•:....::::.::
It rrr ! r rrr ''iiir'',.,.,•;,...:::::.'..,;..-.
a 1a r �lf r'rlrr rr r!%/,rrr r'�,,;;-'---_...•.�...••'.
4 rtrr¢rrrl{rrllrrr llr %rrl,r r
} rr t' rl Ir r�
tl `y l r �ri rrllr11r��rr! rlllrr
a. tf}7} l rrfill-
ttt itf111t t1 T rr }i rjl( }L }y]ffr rat rrllr{Jr'{,°i r, ,`ir'; �'�•','�'i:r
13 }«�er�ttri,irtl trt�r�.lf l.lr,{-1r141t4Y.iir4l
12 tr;prr4� �p �%T f'4f'y'r4r�'ryrr`r7�'�'''r�' `,';r,'; " /r� Ili �;�'',l;llrrl� 'it r
citi,44t:��ii4S�;�4rc�cf.o�.r.t t��F¢EIt4.4�.4��sEtt�r` tlij!}�4tclJJ11;' 'r 71ii5rrrr% �l11�1,�r,rlE�(1.
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 1 - Existing) (ft)
120
Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
V
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave Height_ Template 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
17
16
T 15
13
12694 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
694 695 696 697 696 699 700 701 702 703
x coordinate (km) —�
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
Significant Wave Height Difference (Template 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 �'.'c44§ti?t4 L49i!i43f �rifi+rs� - .1L� N e4 ., ,_ ii — \
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 f'.'e4.4§4ire>iG4'lf'.'7.'irrrr _ ".1L� N e4 .,�../t — \
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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¢?i4.�fr4�{e,t4'1'1'.G°e�ra�iv"rr ".1L� N e4 .,1_-, t — \ \`a- ..
16
T 15
E
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12J,),
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 rL1'r1�4frrrr�1L'lyrr�rlrfrrrrrr'/11rr1r11111fj ry
rr�t.C�jt4L4tJr::rlft1.1�11rt1ti1.7.1Ltit - � _ -..... .. --
16
T 15
E
a 14
0
0
13
121t�{4f�c#i�4�i���44s#��#�4�##4iit{s���i�s#4t¢i�4�k§e4�si�4�:f'.+���rit}r�f�;f�r��,�
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 1�1��i'D It4IViV T.1{'?T;tk 47.lril'tR 171tf rf�iW,V,716 tc�f�J
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 .ry+r t4,rr�r}rrr„rrrrr�r trr
�4ttttrtttl+rtrV
tirrttrrttrrt)rrrrrrrr G'1
t. ir4L4�rtrtt4lrr,+a.Jt?rr„rrrc:„ � _ .....
16
T 15
E
a 14
`0
0
T
13
12 �41�c{tc1}44�tRl4T{144aiF4�4cpR�ikklrt"i�4�4y4�tc�r►E1�i1, .`','6�lf;rr.
F; 14 i 41 4 4 4 r 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 11{4c{S�{x44{�i{34{i�F4t�4�c{yc¢i4;rf'!ri{4�4c�it�f ► f1%i,�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 ra�'¢. !4r'irtrir`r' rrrrrr,r rrr Sti �1rr4irrrrtTrrlrirrrrrrir'�Tr i�rrrrr G'1 �
t._ ir4L4�ir�r:;lr-r�ra!Jrr�r„r✓.'r;., _
16
T 15
E
a 14
`0
0
13
t{4�;c{ti{c�tt{4L{3ci.4{{4Li,{si.�4�c�tR¢ck,4'!r.{s{.44.4�+ttc�r�►E%i :�.�'�'r'a''r5»,r,
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 r'fjttl'r1j!%f}r1„rrfrri�r rrr Sti
tcc�1lyt!1 rrijtr��r�jy�rrrjr�r��trrr�rrrrr, ,. 7i n,
r,IlfCiir4trrrd.:/.rrr,rJrr,lfrr.5',,, V _
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 �l:�ktrfi�ii: rr t47Y:i'i§ �?i �. .1L� rV 4 .,1_ -,,f — \ : '. .
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 § z4 �r4f:�lIr,57i:'i'r"�,'�i �.. ".1L� N e4 .,�,.—,,i — \ :
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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)
rV 4 .,�.,it — \
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 �1?i4.rrf�.`r?�lr t5li!'i?ij rr�t* ".1L� rV 4 .,�_ -,t — \ \`a-
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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'��' `� ;✓�����!"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 ��/rt//!'rr'It
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 1 - Existing) (ft)
101
17
16
T 15
E
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
E
a 14
`0
0
V
13
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�1�;f�if!'�:
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
MIA
0 2 4 6 8 10 12
t Significant Wave
,Height
Existing (ft)
17 �t1�7��fryfl//flrfrfftffflrflrrfrff/r/tr/jrr�rifr/rrr���`_' fah.Lllrr�ll.rfr�:.frrl.r.�r.rr,�r ..
16
T 15
E
a 14
`0
0
13
12 �t 1{ ¢t��7 i' � � `lrrr$`¢4pyi'y�y4'r'r�t r�r''r �'r y'tr�r'r.yfli t't4�f''rrtf�''
t�r4�±4ri��lcf�f4ti�¢rF$.44,�r!rk�z4.4ric�l.4yck1,'r'!riftf.4�►,4r!tc�icr�JI'f
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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�i7�11 �f i�;rrrti f�f>j11 117rfffffffff lrf 11rglfff O't %it's�}fr�rrrrr✓ . ,i'rrr/�I��t rrr�rrrr �f� r i
c�.4��t.�:x�::4fkffe�;r.�?,�r�tlltfr4f?r��t�rlt��t�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 r�ffrjrrrtrrrrrtl� t r INV G'l
16
T 15
E
a 14
0
0
13
12 '��'§�§7rr, ¢.7 r7'fr f r�l l l f�fl jrfl1 trjr ),ftr'ft,t r.r�li)�I VIVPI rrrrf'r.
;�;4�4��'if�4�1{t}f�����.fi� �'f✓'rr+�'f5rJl�
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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
12 41r'�T�Y7�rr �g"�Y'�T�fT')1Tj}�I1��7tj�t�tl�rtl �rl ll�r�r�ltrt1rr/r r'�ts�jt'('rrrrr� .��t'/fi�frrrrrrrrf �EfI,� rr r
L�t�4��Lyt.Ti�Tttl�r�t�t����l?r�,�!r1rrL�?r'r;LrrTr'af��tYi,4.4r(,4r?itfil�tiJ.Er�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
�aff Significant Wave
,Height
l istintg= (ft)
17�trrrrtr,r`I�jfjr�r
llr�rr r1 lrrrrrrrr rr r r ,
16
T 15
E
a 14
`0
0
13
�rTjrfrTill �t7r 11rrr<<rrrt'trrrrtrr� rir�4��tf'rrirrrr / r//err
,���'�;ir}�'ifr;�r.�1�4�4�;4��a�tt�r� rE.Er��.�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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 41r'�Y�)7jT���"TtY'}�T fY`JYl�t(ffe'ltr�j�tl�rtj�)rl rlrjr�llr6/,fI'itI,\)iIff"I'l"lr tr%ii�frrrijrrrl�jll'irrr r
t1,4�y:.x�7r4�?f�tt�i��?l�,ft711'L�4'r;zr}.4'all�r,4.G1�,4fltfitFt�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
!!j!!1 !)rlrr�,rtill! 11t�rf71 jr/r�rrrrr✓rrr
16
T 15
E
a 14
`0
0
T
13
12''���tJl fiy�Ytir���41 l r11l�frr!!�rlr�'!lrir!!rl rir�4��tfrrrirrrr `/ r//err
c14�'rLlx�i4f4s�4�rr,flL1'��'.';itr'ir1;r.;;41°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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 rV $4
16 'C
T 15v� G
a 14
o
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 Trrltr7grt,l r',J�rr1rN _ r� sti
16 T�'�
r 1 rt ¢{fl r�rj�,} rrrr{r rrrr�r;r,
{ Itr �r r
r ���y �¢rrirrrfl i�Elr
T¢rrrrl'ry�¢¢rt�jrrrrfrrrrr'rrlll, ,,r'���f�`"" = G
15
rr
14
r ¢MIT-
�rrr¢rr
13 rtrr�r rf'r�j �{ r1r Yf ftf y T}� r
12 T ¢ ¢¢¢¢¢rT 7¢r ¢�7� ItFr r r�1V,
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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: �NJ?1. .. �.t�� rV e4 (,L_ -,t s..®
16
T 15
E
m
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 hlrtrtrrli:`s'di lJ�lrr'i�rrTtrrr., 1L� +V eti
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 1 - 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 1 (ft)
Offshore Wave Case52:
HS=7.9ft, Tp=8.0s,Dir=186.7degN
Percent Occurrence = 1.063%
From left to right and top to bottom:
➢ Wave under Existing condition (Existing)
➢ Wave under After -Dredge condition (Template 1)
➢ Changes in wave height (Template 1 — 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�l7trt_lrli:`>'11iiJllrlriNT .t�� /1% eti
16
T 15
E
m
a 14
`0
0
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 1t�rrjir�jjr�r'�lr��l�f,�r��� rV �t
1ifl�ll
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 �
's�,44��r'tti?�k�r.+r,�tlrcri,tr'>arir?��rr:r?r&]tir!,!rI'>: I%fall�'r'rr`r�f.
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
0 2 4 6 8 10 12
Significant Wave
+Height Existing l(ftt)+�\�
17 r�r�r��1r�117��1rl�lt�l jj11�11�1�)�1t'It,}�1^e�N,`—' rr117.!//.lerr.1.,�:rEt�i J.11rfM.�JJ.,
16
T 15
E
a 14
`0
0
13
12 4rr ��tr�ry§'�y�$'yf' ' i i rir Itfrrr�' r' rrr + 1i�;4�Fr,11'1 rr , i''� //
sir,�r¢fbrrje tti'?,k,t�+r,4lrc.r ��.r �r!rt:.t4
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 (ft)
l,fr.fj�, r.'t.��lcl4f.;r,'1'dJ�;l,'a✓�... ..
16
T 15
E
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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)
17TY11Ar.'eAtip+V t4 ,L_-,t s. \ .;
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 WJrtiWWWO I rlrf".1ri%4Wr . tip rV e4 (,L_ -,t — " -
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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�lrlrili>i1�>rtJ!'Ir rir✓T✓Pn -.t�� rV t4 ,L_-,t — \ :..
16
T 15
E
m
a 14
`0
0
T
13
12
694 695 696 697 598 699 700 701
x coordinate (km) -�
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - Existing) (ft)
2
17
16
T 15
E
00
V
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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
E
a 14
`0
0
V
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 1 - Existing) (ft)
2
17
16
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
ipip
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
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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
r r/yp ,f Significant Wave
+Height Existing 1((ft)+�\ ;
17 �jrrrtf} f r�'71�j�1r�rY r r �� ^•��`_' af/ �aW ��=?'Y \�� .
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry sl C9.
16 '�
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
} d �
16 J
T 15/ Jj✓/jCr G
E rlJ ( 1 ! !
0 14f0 1q.11
13JJ
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 h1 "1lr�rrtd� llll�J'1r�✓'�'r�.. .SLR rV t4 aL. i t 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 rl trt�r�✓lrrrt✓�lrP"trrrr'J�Yr,� -.SLR +V t4 aL.it — \ 'a:..
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 .trt�rr✓,li t`✓tlr.P".trrrlrJ-i}a_. -.t�� rV t4 (,L_ -,,t s..®. \ -.\\. .
16
T 15
E
a 14
0
0
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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 htrttlirJl� ldilrP"t'r�Jr✓'?r ".1L� N e4 .,1_ ft — \ \`a: -' :. ..- : -'.
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
I Oki
0 2 4 6 8 10 12
Significant Wave Height_ Existing (ft)
17 ./:t�rr✓.l� l`.��frf"i�. -.t�� rV e4 raL./'t 's..®. \-\V-':'-:��-
16
T 15
E
a 14
`0
0
13
12
694
695 696 697 596 699 700 701 702 703
x coordinate (km) �
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

Town of Oak Island ,,,,
Jay Bird Shoals Borrow Area Modeling
September 6, 2019
17 ry
T 15
00
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 �
16 >
15
E i=
a?
14
o
o
fll/ .ff
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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)
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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"�.ir�'i✓.✓ J'✓�t�%1.%+ 15tit.. -. t�� rV t4 (,L_ -,,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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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'rrtrY,11,41'541r✓<lr.%tr� lnti. -.SLR +V tti
16
T 15
E
m
a 14
`0
0
T
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
iv,
694 695 696 697 696 699 700 701 702 703
x coordinate (km)
MIA
0 2 4 6 8 10 12
Significant Wave
+Height l isting (ft)
17,01.
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 1 - Existing) (ft)
2
17
j[C
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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)
17 r4rrrr�✓%r"r;t✓tl'�r' ".1L� +V t4 "a _ i t _ \ \`a: -
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 1 - Existing) (ft)
2
17
16
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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

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)
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 (aL. -,,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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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".%ii�.✓ Jritrf.�ir%1'1�3`r�. ". t�� N t4 ,�_ -,,t s..®. \ - .
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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 �i".✓.ii�.✓.r�tr1'��.�.rrlr'. Pry. -.tip rV t4 (,L_ -,,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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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"✓rfisf� tr�tfi -.t�� rV eti ,�_-,t — \ .\ .
16
T 15
E
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 1 - 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 1 (ft)
Offshore Wave Case80:
HS = 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 1)
➢ Changes in wave height (Template 1 — 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

UP
17 rr � .� +V $4 '.
!� /r
16/
E15
a 14 !%f 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_ Existing (ft)
17
16
r
OR
15
° 1413
T >�� �� r�'r%%�/�,�%1��,.G / � � 1l !! f ✓ 1.
r ,
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 {t yl/fr�fi/f���%�JYr�. �. 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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — 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 � i3/J✓ %1'IL�J/i�. -.t�� rV t4 (,L_ -, t — \
16
T 15
E
a 14
`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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
Ili
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 1rr��lf�i:/1 t�i��li irx. -.tip rV tti
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 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project

17
16
T 15
13
12 jlI f� r �f �/ ��T r t1li trr1yr� / '! �rff ¢ff
f r/ fs'l IOf, l i� l//ir��, ,� r�,��{rr,Y ! ; sff r%r
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
x coordinate (km) �
702 703
-2 -1.5 -1 -0.5 0 0.5 1 1.5
Significant Wave Height Difference (Template 1 - 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 1 (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 1)
➢ Changes in wave height (Template 1 — Existing)
201912020 Renourishment Project