20200057 Ver 1_REVISED PERMIT 20200124_20200130

ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
O
SEA LEVEL OJT
GO0
NELSON BAY
PR0✓ECT TITLE. ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY.- MOFFATT & NICHOL
CARTERET COUNTY, NORTH CAROLINA
SITE
INDEX OF DRAWINGS
SHEET NO.
SHEET TITLE
1
COVER SHEET
2
PROJECT SITE PLAN
3
DREDGE PLAN
4
USACE AUTHORIZED NAVIGATION CHANNEL
5
DREDGE MATERIAL DISPOSAL PLAN
6
LIVING SHORELINE LAYOUT PLAN
7
LIVING SHORELINE EXISTING PLAN
8
LIVING SHORELINE PROPOSED GRADING PLAN
9
TYPICAL DREDGE SECTIONS
10
GRANITE ROCK SILL DETAILS
11
WHITE POINT TYPICAL SECTION
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.- REVISED - JANUARY 2020
LOCATION MAP
NOT TO SCALE
SHEET TITLE -
COVER SHEET
SHEET
1
OF
11

PRO✓ECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM.• MLLW
PREPARED BY.- MOFFATT & NICHOL
NO DREDGE MATERIAL
PLACEMENT LANDWARD
OF USACE EASEMENT LINE
- NA24,087
E:2,800,376
USACE EASEMENT LINE
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.- REVISED - JANUARY 2020
WHITE POINT DREDGE MATERIAL
PLACEMENT SITE, SEE SHEET 5
GRANITE ROCK SILL, SEE TYPICAL
SECTION SHEET 10
15' BREAK FOR TIDAL FLUSHING
ANn FISH PASSAnF SFF TYPICAI
WAVE ATTENUATOR CONSTRUCTION NOTES:
1. ATTENUATORS SHOULD BE CONSTRUCTED SIDE BY SIDE TO SPAN 25' IN TOTAL
LENGTH PER STRUCTURE.
2. ATTENTUATORS SHOULD BE CENTERED ON THE 15' TIDAL GAP TO ENSURE A 5'
OVERLAP OF THE STRUCTURE PER SIDE.
3. ATTENUATOR STRUCTURE SHOULD BE POSITIONED 5' SEAWARD OF GRANITE ROCK
SILL SCOUR ROCK.
4. WAVE ATTENUATORS SHALL INCLUDE A LIGHTED AID TO NAVIGATION (ATON) AT
LOCATIONS AS SHOWN ON SHEET 8.
LEGEND
— — — —
DREDGE IMPACT LIMITS
USACE SETBACK LINE
MAINTENANCE CHANNEL BASELINE
_
MAINTENANCE CHANNEL BASE IMPACT AREA
®
MAINTENANCE CHANNEL SIDE SLOPE IMPACT AREA
GRANITE ROCK SILL
SHEET TITLE -
PROJECT SITE PLAN
150' 0' 150, 300'
SCALE: 1 "=300'
SHEET
2
OF
11

r PROJECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY.- MOFFATT & NICHOL
L
11
1I�
I J �
T
r.
rl
(�J
USACE SETBACK LINE
r PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.' REVISED - JANUARY 2020
WHITE POINT DREDGE MATERIAL
PLACEMENT SITE, SEE SHEET 5
Maintenance Dredge Control Table
Station
Azimuth (°)
Depth (MLLW)
Width (FT)
Side Slope (H':V')
Dredge Density
(Cy/4)
Cummulative
Volume (CY)
6+00
123.17
-6 MLLW +1
40
5:1
0.6
7+00
123.17
-6 MLLW +1
40
5:1
0.8
59
8+00
123.17
-6 MLLW +1
40
5:1
1.0
156
9+00
123.17
-6 MLLW +1
40
5:1
1.3
268
10+00
123.17
-6 MLLW +1
1 40
5:1
1 1.4
401
11+00
123.17
-6 MLLW +1
40
5:1
1.7
555
12+00
123.17
-6 MLLW +1
40
5:1
3.4
808
13+00
123.17
-6 MLLW +1
40
5:1
6.5
1,304
14+00
123.17
-6 MLLW +1
40
5:1
9.1
2,084
15+00
123.17
-6 MLLW +1
40
5:1
8.5
2,961
16+00
123.17
-6 MLLW +1
40
5:1
8.2
3,795
17+00
123.17
-6 MLLW +1
40
5:1
7.6
4,588
18+00
123.17
-6 MLLW +1
40
5:1
8.0
5,369
19+00
110.83
-6 MLLW +1
40
5:1
10.2
6,280
20+00
98.66
-6 MLLW +1
40
5:1
9.7
7,278
21+00
98.66
-6 MLLW +1
40
5:1
10.3
8,276
22+00
81.71
-6 MLLW +1
36.6
5:1
10.0
9,291
22+50
55.7
-6 MLLW +1
20.2
3:1
5.8
9,687
23+00
46.53
-5 MLLW +1
25
3:1
4.9
9,955
24+00
46.53
-5 MLLW +1
30
3:1
4.1
10,403
25+00
36.15
-5 MLLW +1
45.7
5:1
4.0
10,807
26+00
25.77
-5 MLLW +1
55
5:1
3.0
11,156
27+00
25.77
-5 MLLW +1
190
5:1
6.2
11,615
28+00
25.77
-5 MLLW +1
190
5:1
5.0
12,174
29+00
25.77
-5 MLLW +1
190
5:1
3.8
1 12,615
30+00
25.77
-5 MLLW +1
190
5:1
3.2
12,966
31+00
25.77
-5 MLLW +1
190
5:1
0.6
13,159
32+00
25.77
-5 MLLW +1
190
5:1
1.1
13,247
NOTE:
SEE SHEET 9 FOR DREDGE TYPICAL SECTIONS.
LEGEND
- - - -
DREDGE IMPACT LIMITS
USACE SETBACK LINE
MAINTENANCE CHANNEL BASELINE
_
MAINTENANCE CHANNEL BASE IMPACT AREA
®
MAINTENANCE CHANNEL SIDE SLOPE IMPACT AREA
01
SHEET TITLE.-
DREDGE PLAN
150' 0' 150, 300'
SCALE: 1 "=300'
SHEET
3
OF
11

PRO✓ECT TITLE.- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM.• MLLW
PREPARED BY.- MOFFATT & NICHOL
c�1
USACE SETBACK LINE
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.- REVISED - JANUARY 2020
NO DREDGE MATERIAL
PLACEMENT LANDWARD OF
USACE EASEMENT LINE
NA24,087
E:2,800,376
USACE EASEMENT LINE
LEGEND
USACE AUTHORIZED NAVIGATION CHANNEL (BASE)
USACE SETBACK LINE
MAINTENANCE CHANNEL BASELINE
_
MAINTENANCE CHANNEL BASE (IMPACT AREA)
SHEET TITLE-
USACE AUTHORIZED NAVIGATION CHANNEL
150' 0' 150, 300'
SCALE: 1"=300'
SHEET
4
OF
11

��
L A
1 1`40 DREDGE MATERIAL
\ 1 j PLACEMENT LANDWARD OF
/�USACE EA3EpACT LINE /
1 / /
1 NA24,087
1 E:2,800,376 j
l 1 '
USACEEASEMENTL'INE
If
MIN
\ 1 s 1 \ 1 1
+C�l' 1 I � 1 I 11 1 1 1 )—^y / I I• I �)(\ \ I
I It'll ��,�
NA23,775
E:2,799,950 APPROXIMATE
/ \ DREDGE MATERIAL
I I II.I(IJ I l( �1
SHEE I // I 1 PROPOSED MHW LINE
A, PLACEMENT CTION\ON 'I /i / 1
APPROX LIMITS OF I / // I,� / 1 j
DREDGING INCLUDING APPROXIMATE
SIDE SLOPE, TYP EXISTING MHW LINE
I, I
r/
� , I
L--/\ �� I I II I 1 I I I OUTER LIMIT OF DREDGE MATERIAL
FILL PLACEMENT, 30' OFFSET FROM
EXISTING MHW OR LANDWARD OF
PLANTING LIMITS
I
PRO✓ECT TITLE.- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY- MOFFATT & NICHOL
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE: REVISED - JANUARY 2020
MATERIAL PLACEMENT AREA NOTES:
1. ALL MATERIAL EXCAVATED FROM CHANNEL SHALL BE TRANSPORTED TO PLACEMENT AREA. ANY MISPLACED
MATERIALS SHALL BE IMMEDIATELY REGATHERED AND TRANSPORTED TO THE MATERIAL PLACEMENT AREA.
2. MATERIAL SHALL BE PLACED WITHIN THE LIMITS AND PLACEMENT LINES AS SHOWN IN THE PLANS AS
PRACTICALLY AS POSSIBLE. PLACED MATERIAL SHALL BE GRADED TO PROHIBIT WATER PONDING.
3. ALL ELEVATIONS SHOWN ARE REFERENCED TO MEAN LOWER LOW WATER (MLLW).
4. THE TOPOGRAPHY PRESENTED ON THE MATERIAL PLACEMENT SITE AND SECTIONS IS BASED ON 2018 SURVEYS
COMPLETED BY GEODYNAMICS LLC AND CAN ONLY BE CONSIDERED REPRESENTATIVE OF THAT TIME.
SEDIMENT & EROSION CONTROL NOTES:
1. CONTRACTOR SHALL INSTALL TEMPORARY SILT FENCE AROUND LIMITS OF FILL AS SHOWN ON MATERIAL PLACEMENT AREA
SECTION OF SHEET 10. APPROXIMATE ACREAGE FOR MATERIAL PLACEMENT WITHIN SILT FENCE IS 2.7 AC.
2. DREDGED MATERIAL SHALL BE PLACED AS FAR AWAY FROM SILT FENCE AS PRACTICLE AND SPREADING OPERATIONS
CONDUCTED AS TO ENCOURAGE AS MUCH SETTLING OF SEDIMENTS AS REASONABLE.
3. CONTRACTOR SHALL INSPECT SILT FENCE DAILY AND ALERT ENGINEER OF ANY ISSUES WITH PERFORMANCE OR
UNACCEPTABLE SEDIMENT DISCHARGES.
4. SILT FENCING MAY NOT BE REMOVED UNTIL ALL CONTRIBUTING UPGRADIENT AREAS ARE STABILIZED.
5. SILT FENCE SHALL BE PLACED NO CLOSER THAN 30' FROM EXISTING MHW OR ALONG FUTURE PLANTING LIMITS. MHW LINE
SHOWN ON DRAWINGS IS APPROXIMATE. CONTRACTOR SHALL HAVE EXISTING MHW LINE SURVEYED BEFORE CONSTRUCTION
COMMENCES TO VERIFY ALLOWABLE SILT FENCE LOCATION.
WOVEN WIRE FENCE (14 1/2 GA
MIN, MAX 6" MESH SPACING)
WITH FILTER CLOTH OVER
OVERLAND FLOW
N EXISTING GROUND
EMBED FILTER CLOTH
MIN 8" INTO GROUND/�/�/�/�/ // //
AFTER SILL
/ _ CONSTRUCTION
3'-0" MIN STEEL FENCE POST
10' MAX POST SPACING
TYPICAL SILT FENCE
NOT TO SCALE
LEGEND
— — — —
DREDGE IMPACT LIMITS
—SF
APPROX. SILT FENCE INSTALLATION LOCATION
—•••— MHW—
APPROX. PROPOSED MEAN HIGH WATER LINE
—•••—MHW—
APPROX. EXISTING MEAN HIGH WATER LINE
SHEET TITLE -
DREDGE MATERIAL DISPOSAL PLAN
50, 0' 50' 100,
SCALE: 1 "=100'

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LA
-WP
USACE SETBACK LINE
PRO✓ECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TU/LI: MLLW
PREPARED BY.' MOFFATT & NICHOL
=a+oo-
WP #16 1
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WP #22
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CENTERLINE OF GRANITE
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ROCK SILL, SEE TYPICAL
I /
SECTIONS SHEET 10
II /
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WP #20
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.- REVISED - JANUARY 2020
Point Table
Description
Northing
Easting
WP #1
423933.19
2800070.21
WP #2
423883.23
2800093.22
WP#3
423873.94
2800096.93
WP #4
423864.05
2800098.28
WP #5
423577.15
2800056.00
WP #6
423567.31
2800054.14
WP #7
423557.58
2800051.18
WP #8
423548.40
2800047.26
WP #9
423539.67
2800042.69
WP #10
423530.88
2800037.96
WP #11
423521.99
2800033.34
WP #12
423500.44
2800020.74
WP #13
423437.64
2799979.74
WP #14
423408.54
2799987.03
WP #15
423345.88
2800044.46
WP #16
423306.87
2800136.54
WP #17
423298.06
2800211.03
WP # 18
423330.14
2800278.82
WP #19
423419.67
2800323.37
WP #20
423614.48
2800368.62
WP #21
423813.81
2800385.00
WP #22
423961.93
2800361.37
WP #23
424105.80
2800318.92
WP #24
424146.23
2800297.68
LEGEND
GRANITE ROCK SILL CENTERLINE
GRANITE ROCK PLACEMENT LIMITS
USACE SETBACK LINE
SHEET TITLE.-
LIVING SHORELINE LAYOUT PLAN
60' 0' 60' 120'
SCALE: 1 "=120'
SHEET
6
OF
11

PRO✓ECT TITLE.' ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM.• MLLW
PREPARED BY.' MOFFATT & NICHOL
/ /�H� MHW �.. lW '� 1V� "�- •. /�NW
•y �... ..-- MHW J r- fH�V� --'�}iW��-- MHW �J MNw�'•.,-I�
V J ,�'`r`k-�--•�� M � /'- __. MHW-�... -\1...f
wm-
`EXISTING CONTOUR, TYP
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.' REVISED - JANUARY 2020
APPROXIMATE MLW EL 0.10 MLLW
NO DREDGE MATERIAL
PLACEMENT LANDWARD
OF USACE EASEMENT LINE
SHEET TITLE.'
LIVING SHORELINE EXISTING PLAN
50, 0' 50' 100,
SCALE: 1 "=100'
SHEET
7
OF
11

fl �
USACE EASEMENT LINE
h
8 ; A
r
LANDWARD LIMIT OF BACKFILL
SPOIL
PLACEMENT
S�OpE FRO �.
M*2.0'TO0.0M«W
15' BREAK FOR TIDAL
FLUSHING AND FISH "
PASSAGE, SEE TYPICAL NO DREDGE MATERIAL
SECTION SHEET 10 008000 PLACEMENT LANDWARD
OF USACE EASEMENT LINE
ENGINEERED WAVE PROPOSED MHW SLOPED BACKFILL W/
ATTENUATORS, TYP EL 0.68 MLLW PLANTINGS AS SHOWN GRANITE ROCK SILL,
SEE DETAIL SHEET 10 ON TYPICAL SECTION SEE TYPICAL SECTIONS
SHEET10 SHEET 10
AID TO NAVIGATION
LIGHT (ATON), TYP
4 LOCATIONS AS
INDICATED
NOTE:
MATERIAL PLACEMENT FROM MAINTENANCE DREDGING
NOT CONSIDERED IN POST CONSTRUCTION GRADING.
PRO✓ECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY.- MOFFATT & NICHOL
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.' REVISED - JANUARY 2020
SHEET TITLE.-
LIVING SHORELINE PROPOSED GRADING PLAN
50' 0' 50' 100,
SCALE:1"=100'
SHEET
8
OF
11

TYPICAL SECTION STA 6+00 TO 22+00
SCALE: 1 "=10'-0"
VARIES
VARIES
EL -6.0 MLLW .._
USACE AUTHORIZED
CHANNEL LIMITS, TYP
APPROXIMATE LIMITS OF
DREDGING SIDE SLOPES, TYP
i
MLW EL = 0.10 MLLW 0
MHW EL = 0.68 MLLW
i
APPROXIMATE EXISTING GRADE
MAINTENANCE CHANNEL BASELINE
i
USACE AUTHORIZED
CHANNEL LIMITS, TYP
VARIES 10'-0" MIN VARIES 10'-0" MIN
17
i
APPROXIMATE LIMITS OF MLW EL = 0.10 MLLW MHW EL = 0.68 MLLW
DREDGING SIDE SLOPES, TYP
i 3.1 3;1 i
APPROXIMATE EXISTING GRADE
1.0' ALLOWABLE OVERDREDGE DESIGN DREDGE
EL -5.0 MLLW
TYPICAL SECTION STA 22+50 TO 32+00
SCALE: 1 "=10'-0"
PR0✓ECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY.- MOFFATT & NICHOL
PREPARED FOR.- CARTERET COUNTY
NAVIGATION PROJECT
DA TE.• REVISED - JANUARY 2020
NOTES
1. THE BATHYMETRY PRESENTED ON THE DREDGE PLAN AND SECTIONS IS BASED ON
2018 SURVEY'S CONDUCTED BY GEODYNAMICS LLC. AND CAN ONLY BE
CONSIDERED AS REPRESENTATIVE OF THAT TIME. SURVEY VERTICAL REFERENCE
MLLW DATUM.
2. PLAN COORDINATES AND WORK POINTS ARE BASED ON THE NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN DATUM 83 (NAD83).
3. ALL DREDGED MATERIAL WILL BE PLACED UPLAND IN THE WHITE POINT MATERIAL
PLACEMENT SITE AS SHOWN ON THE PERMIT DRAWINGS.
4. ALL DREDGING SHALL BE PERFORMED WITHIN THE LIMITS OF THE PERMITTED
DREDGING AREA AS SHOWN IN THE DRAWINGS WITH ALLOWABLE OVERDREDGE
DEPTH AS NOTED.
5. THE TIDAL DATUMS (MHW, MLW, & NAVD) SHOWN HEREIN ARE BASED ON NOAA
TIDAL DATUMS AT SEA LEVEL, NC STATION 8655875.
NAVD88......... 0.73
MHW ........... 0.68
MTL............ 0.39
MLW........... 0.10
MLLW.......... 0.00
PERMITS
1. IT IS THE INTENT OF THESE PLANS TO BE IN ACCORDANCE WITH APPLICABLE
CODES AND AUTHORITIES HAVING JURISDICTION. ANY DISCREPANCIES BETWEEN
THESE PLANS AND APPLICABLE CODES SHALL BE IMMEDIATELY BROUGHT TO THE
ATTENTION OF THE OWNER.
2. IT IS THE INTENT OF THESE PLANS AND THE RESPONSIBILITY OF THE
CONTRACTOR TO COMPLY WITH THE ENVIRONMENTAL PERMITS ISSUED FOR THIS
PROJECT, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FAMILIARIZE AND
GOVERN HIMSELF BY ALL PROVISIONS OF THESE PERMITS. SEE THE TECHNICAL
SPECIFICATIONS.
CTA(,INIr
STAGING AREAS SHALL BE MAINTAINED BY THE CONTRACTOR. STAGING AREAS SHALL
BE CLEARED OF DEBRIS AND CONTRACTOR INSTALLED AMENITIES AT THE COMPLETION
AND ACCEPTANCE OF WORK IN THE AREA. THE CONTRACTOR SHALL RESTORE THE
ACCESS AREAS TO THEIR ORIGINAL CONDITION AFTER WORK IN THE AREA IS
COMPLETE. THIS WORK INCLUDES REPLACEMENT OF FENCING, SIGNS, SAND FENCE,
VEGETATION, WALKWAYS, PARKING FACILITIES, PAVED AREAS AND OTHER
MISCELLANEOUS ITEMS. ALL REPLACEMENT MATERIALS SHALL BE APPROVED BY THE
OWNER BEFORE INSTALLATION.
SHEET TITLE -
TYPICAL DREDGE SECTIONS
5' 0' 5' 10,
SCALE: 1 "=10'
SHEET
9
OF
11

6'-0'
NOMINAL 900-LB (24"0) GRANITE, TYP EL +2.0
�7 MHW EL= 0.68 MLLW 1 2 2 20:1 SLOPE
E----------
EXISTING GRADE _ _ _ _ _ _ _____---
(VARIES) -- -- BACKFILL 9 1
EL -3.0, TYP LANDWARD
777777
ILTER CLOTH i 6" NCDOT CLASS A RIPRAP
BEDDING STONE
12'-0" 12'-0"
STA 4+50 TO 17+45 GRANITE ROCK SILL TYPICAL SECTION
SCALE 1/8"=1'-0"
MARSH RESTORATION AREA, SEE NOTES
EL+2.0
EXISTING
GROUND (VARIES)
MARSH RESTORATION AREA:
1. MARSH RESTORATION AREA TO BE BACKFILLED AS SHOWN ON DRAWINGS FROM EL 0.0 MLLW
UP TO THE EXISTING +2.0 MLLW CONTOUR.
2. MARSH VEGETATION TO BE PLANTED IN ACCORDANCE WITH THE NORTH CAROLINA COASTAL
FEDERATION RECOMMENDATIONS. EXPECTATIONS SUGGEST SPARTINA TYPE VEGETATION
AT 9-INCH CENTERS WITHIN BACKFILL AREA.
3. ALL DIMENSIONS SHOWN ARE IN FEET.
4. ALL ELEVATIONS SHOWN ARE IN FEET REFERENCING MEAN LOWER LOW WATER DATUM.
5'-0" MARSH RESTORATION SELF-CONTAINED SOLAR POWERED
NOMINAL 350-LB (18" 0) GRANITE, TYP AREA, SEE NOTES — NAVIGATION LIGHT, SEE NOTE
EL +2.0 EL +2.0 NOTE: SELF-CONTAINED SOLAR NAVIGATION LIGHTS SHALL
BE SEALITE MODEL SL70 OR APPROVED EQUAL.
2 2 10:1 gUOPE J 12" DIA HEAVY DUTY FIBERGLASS NAVIGATION LIGHTS SHALL BE UNOBSTRUCTED, SLOW
�MHW EL= 0.68 MLLW 1 — — — — — EXISTING GROUND PILE WITH 13" DIA STEEL CAP FLASHING (3-SEC FLASH PATTERN) YELLOW WITH A 10
EXISTING _ — — EL 0.0 (VARIES) CANDELA INTENSITY OR OPERATIONAL RANGE OF ONE
NAUTICAL MILE OR AS OTHERWISE REQUIRED BY THE
GRADE (VARIES) BACKFILL �1 PERMIT.
2 EL -1.5, TYP
LANDWARD
EL -2.0, TYP
---------------------------------------------- -------------------------------------------------- ATO N INSET
FILTER CLOTH 6" NCDOT CLASS A RIPRAP NOT TO SCALE
BEDDING STONE
8'-6" 8'-6"
PLASTIC PILING CAP,
TOP CLAMP TO BE DETERMINED SEE NOTE
STA 0+25 TO 4+00 GRANITE ROCK SILL TYPICAL SECTION AT TIME OF INSTALLATION
12" DIA HEAVY DUTY FIBERGLASS
SCALE 1 /4"=1'-0" Zi
PILE @ 4' O.C. (6 PER SILL OPENING)
NOMINAL 900-LB (24"0)
OR NOMINAL 350-LB (18"0)
15'-0"
15' SILL BREAK TYPICAL SECTION
SCALE 1/4"=1'-0"
r PROJECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM: MLLW
PREPARED BY.- MOFFATT & NICHOL
r PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.• REVISED - JANUARY 2020
EL +2.0. TYP
�] MLW = 0.10 MLLW
EXISTING GRADE — — —
(VARIES)
NOTE: EACH WAVE ATTENUATOR AS INDICATED
ON PLANS SHALL INCLUDE A LIGHTED AID TO
NAVIGATION (ATON) MEETING USAGE
REQUIREMENTS FOR INLAND NIGHTTIME
NAVIGATION APPROXIMATELY HALFWAY WITHIN
EACH 25 FOOT SPAN (4 TOTAL). SEE INSET
DETAIL.
EL +2.0
io
WATER FLUSHING
EL -4.0
— BOTTOM CONTOUR
— BASE CLAMP
PILING DEPTH VARIES BASED ON SOIL BEARING CAPACITY
ENGINEERED WAVE ATTENUATOR
NOT TO SCALE
SHEET TITLE.-
GRANITE ROCK SILL DETAILS
2,_0. 0._0" 2,-0. 4,_0„ 4,_p„ 01_01, 4-1" 81_0.
SCALE: 1/4"=T-0" SCALE: 1/8"=1'-0"
SHEET
10
OF
11

EL +2.0
MLW EL= 0.10 MLLW MHW EL= 0.68\/M�L�L/W��v(�
EL-1.�1
EL -2.0
HARBOR SIDE STA 0+25 TO 4+00
PR0✓ECT TITLE- ATLANTIC HARBOR MAINTENANCE
DREDGING & LIVING SHORELINE
DA TUM.• MLLW
PREPARED BY.- MOFFATT & NICHOL
SILT FENCE 30' FROM
GRANITE ROCK MHW OR LANDWARD
GRAN
SILL, ITE PLANTING LIMITS, TYP
DREDGE MATERIAL, NOT TO EXCEED 3.5' ABOVE
EXISTING GRADE (MAX ELEV +7.5' MLLW)
TYPICAL SECTION
SCALE: 1 "=10'-0"
PREPARED FOR: CARTERET COUNTY
NAVIGATION PROJECT
DA TE.' REVISED - JANUARY 2020
MARSH VEGETATION TO BE PLANTED
IN ACCORDANCE WITH THE NORTH CAROLINA
COASTAL FEDERATION RECOMMENDATIONS SAND BACKFILL WITH PLANTINGS
(EXPECTATIONS SUGGEST SPARTINA VEGETATION FROM EL 0.0 TO +2.0, TYP
AT 9-INCH CENTERS.), TYP _..
EL +2.0
o MHW EL= 0.68 MLLW
EL = o MLW EL= 0.10 MLLW
BACKFILL I
-- EL-1.5
EL-2.0
SOUND SIDE STA 4+50 TO 17+35
SHEET TITLE -
WHITE POINT TYPICAL SECTION
s' 0' 5' 10,
SCALE:1"=10'