20011868 Ver 3_Design/Maps/Site Plans Revised_20231108 (2)

TOWN OF SUNSET BEACH SHALLOW
DRAFT NAVIGATION PROJECT:
MARY'S AND TURTLE CREEK
SUNSET BEACH, NORTH CAROLINA
-'CIS'!9�'*�'37*Y+fx�''3�'`7SIr"'c*' ,�•�__R— -
N
• LUMBERTON
w NORTH CAROLINA 0 HAMPSTEAD
WILMINGTON
PROJECT LOCATION
0 SUNSET BEACH
\Y NORTH MYRTLE BEACH
0 MYRTLE BEACH
ATLANTIC OCEAN
SCALE:NTS
INDEX OF DRAWINGS
SHEET NO.
SHEET TITLE
G-001
COVER SHEET
G-002
GENERAL NOTES & ABBREVIATIONS
G-101
SITE PLAN
G-102
MATERIAL PLACEMENT & OFFLOADING SITE PLAN
Chi•
ERE)GIG _ON -- NOTES
68i8i
C-101
DREDGE PLAN
6 i02
PIPELINE GGRRIBGR PLAN
C-300
TYPICAL SECTIONS
C-401
PRIMARY OFFLOADING AREA ENLARGED PLAN
S-501
MARY'S CREEK TEMPORARY BULKHEAD DETAILS & NOTES
DRAWING REMOVED
A
PRIMARY
OFFLOADING SITE
N
MARY'S CREEK
TURTLE CREEK
SEASIDEPECAN AVENUE
NA
ALTE�Pj�R�PY TE ACCESS
PSj
STAGING, OFFLOADING
AREA & RAMP
e
_ 2
COBIA ST ALTERNATE
OFFLOADING AREA &
9
TEMPORARY BULKHEAD
TUBBSINLET
S
N
SUNSET
BEACH
' ATLANTIC OCEAN
SCALE:NTS
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REVISION 1- 2023-07-14 Sheet
FOR PERMITTING Reference No.
ISSUED: 2022-07-28 G_001
NOT TO BE USED FOR CONSTRUCTION
INDEX: 1 OF 8
4
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GENERAL NOTES:
1. THE BATHYMETRY PRESENTED IS BASED ON A SURVEY CONDUCTED BY
GEODYNAMICS LLC DATED AUGUST 2020 AND CAN ONLY BE CONSIDERED AS
REPRESENTATIVE AT THAT TIME.
2. PLAN COORDINATES AND WORK POINTS ARE BASED ON THE NORTH CAROLINA
STATE PLANE SYSTEM, NORTH AMERICAN DATUM OF 1983 (NAD 83).
3. ALL ELEVATIONS SHOWN ARE REFERENCED TO MEAN LOW WATER (MLW)
UNLESS OTHERWISE NOTED.
4. ALL DREDGING 61 IAI:I: BE PERFeRMED IF TI !E PERMITTED
5. ALL MATERIAL PLACEMENT AND DREDGING SHALL CONFORM TO THE
REQUIREMENTS OF THESE PLANS AND SPECIFICATIONS.
6. THE CONTRACTOR SHALL PLACE THE PERMIT PLACARDS ON THE JOB SITE AND
SHALL COMPLY WITH ALL TERMS OF THE PERMITS PERTAINING TO THE
PERFORMANCE OF THE WORK. SEE THE TECHNICAL SPECIFICATIONS.
7. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND EXISTING CONDITIONS
BEFORE STARTING WORK. NOTIFY OWNER OF DISCREPANCIES.
8. ALL SAFETY REGULATIONS ARE TO BE STRICTLY FOLLOWED. METHODS OF
CONSTRUCTION AND ERECTION OF STRUCTURAL MATERIAL ARE THE
CONTRACTORS RESPONSIBILITY.
9. THE CONTRACTOR SHALL, ON A DAILY BASIS, REMOVE FROM THE SITE ANY
EXCAVATED MATERIAL OR DEBRIS. DISPOSAL OF THE MATERIALS IS THE
RESPONSIBILITY OF THE CONTRACTOR. ALL DEBRIS SHALL BE DISPOSED OF IN
A PERMITTED LANDFILL.
10. THESE PLANS ARE INCOMPLETE WITHOUT THE PROJECT TECHNICAL
SPECIFICATIONS. IF THERE ARE CONFLICTS BETWEEN THE PLANS AND
SPECIFICATIONS, THE CONTRACTOR SHALL ALERT THE OWNER AND ENGINEER.
THE TECHNICAL SPECIFICATIONS SHALL TAKE PRECEDENCE.
11. STAGING AND ACCESS AREAS SHALL BE MAINTAINED BY THE CONTRACTOR.
STAGING AND ACCESS 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 STAGING AND
ACCESS AREAS TO THEIR ORIGINAL CONDITION AFTER WORK IN THE AREA IS
COMPLETE. THIS WORK INCLUDES REPLACEMENT OF FENCING, SIGNS,
PARKING FACILITIES, PAVED AREAS AND OTHER MISCELLANEOUS ITEMS. ALL
REPLACEMENT MATERIALS SHALL BE APPROVED BY THE OWNER BEFORE
INSTALLATION.
12. UNLESS OTHERWISE APPROVED BY THE OWNER, EXCESS EQUIPMENT MAY
ONLY BE STORED IN APPROVED STORAGE/STAGING AREAS. THE OWNER
RESERVES THE RIGHT TO LIMIT SUCH AREAS AS DEEMED NECESSARY.
OPERATION OF GRADING AND OTHER CONSTRUCTION EQUIPMENT WILL NOT BE
PERMITTED OUTSIDE THE WORK AREA LIMITS EXCEPT FOR INGRESS AND EGRESS OF THE SITE AT APPROVED LOCATIONS. 1 Q
13. ANY EXISTING SIGNS, FENCES, OR OTHER STRUCTURES WITHIN THE WORK
LIMITS SHALL BE PROTECTED AND/OR REMOVED AND LATER REPLACED BY THE
CONTRACTOR AS DIRECTED.
14. THE AERIAL IMAGERY PRESENTED ON THE PLANS IS FROM A NC ONE MAP FROM
2020 AND NEARMAP DATED JANUARY 24, 2023 AND CAN ONLY BE CONSIDERED
AS INDICATING THE CONDITIONS AT THE TIME.
15. THE MEAN HIGH WATER ELEVATION AND MEAN LOW WATER ELEVATION SHOWN
ON THE DRAWINGS AND BELOW ARE BASED ON NOAA TIDAL DATUMS AT THE
OAK ISLAND, ATLANTIC OCEAN, NC; NOAA STATION 8659897 SUNSET BEACH.
MHW........4.95 FT
NAVD.......2.85 FT
MTL.......... 2.47 FT
MLW.........0.00 FT
MLLW.......-0.19 FT
16. SURVEY BENCHMARK IS NGS MARKER "SEASIDE RESET" NAVD88 EL 42.06-FT,
SEE D5/G-102.
PERMIT NOTES:
1. DREDGE CHANNELS PREVIOUSLY PERMITTED UNDER CAMA PERMIT NO. 132-18
2. 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.
3. 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 ITSELF BY ALL PROVISIONS OF THESE PERMITS. SEE
THE TECHNICAL SPECIFICATIONS.
DREDGING:
1. ALL DREDGING SHALL BE PERFORMED WITHIN THE LIMITS OF THE PERMITTED
DREDGE AREA AS SHOWN ON THE DRAWINGS WITH THE ALLOWABLE
OVER -DEPTH OF ONE FOOT.
2. THE CONTRACTOR IS NOT REQUIRED TO DREDGE ANY CLOSER THAN 5 FEET
OF ANY EXISTING STRUCTURE.
3. A PRE- AND POST -DREDGE SURVEY OF THE DREDGE AREA SHALL BE
COMPLETED BY AN INDEPENDENT PROFESSIONAL LAND SURVEYOR
REGISTERED IN THE STATE OF NORTH CAROLINA, COORDINATED AND PAID
FOR BY THE CONTRACTOR TO STANDARDS OUTLINED IN THE TECHNICAL
SPECIFICATIONS.
ABBREVIATIONS
AIWW ATLANTIC INTRACOASTAL WATERWAY
APPROX APPROXIMATE
AVE AVENUE
BLVD BOULEVARD
CIR CIRCLE
CL CENTERLINE
DR DRIVE
E EAST OR EASTING
EXIST. EXISTING
PROP PROPOSED
TYP TYPICAL
MLW MEAN LOW WATER
N NORTH OR NORTHING
NAD 83 NORTH AMERICAN DATUM OF 1983
NAVD 88 NORTH AMERICAN VERTICAL DATUM OF 1988
PL PLACE
S SOUTH
ST STREET
USACE UNITED STATES ARMY CORPS OF ENGINEERS
& AND
VOLUME TABLE
DESIGNATION
ESTIMATED MAXIMUM
DREDGE (CY)
MARY'S CREEK
8,100
TURTLE CREEK
9,723
TOTALS
I17,823
MARY'S CREEK WORK POINT TABLE
WP #
NORTHING
EASTING
WP 01
48488.81
2149070.09
WP 02
48955.94
2148891.79
WP 03
49090.56
2148826.16
WP 04
49193.64
2148812.72
WP 05
49304.44
2148707.19
WP 06
49378.11
2148548.45
1m7e1m\lw
VIEW NUMBER
/ B5 \ SAMPLE VIEW TITLE
CS-555 SCALE: 1"=50'
SHEET NUMBER VIEW
REFERENCED TO
VIEW TITLE
VIEW NUMBER
G-,101
SHEET NUMBER VIEW
REFERENCED TO
SECTION CALLOUT
TURTLE CREEK WORK POINT TABLE
WP #
NORTHING
EASTING
WP 07
49024.36
2150834.91
WP 08
49358.83
2150732.81
WP 09
49633.77
2150738.42
WP 10
50106.97
2150697.08
VIEW NUMBER
sA3a
SHEET NUMBER VIEW
REFERENCED TO
DETAIL CALLOUT
. VIEW NUMBER IS BASED ON THE (DACS) LOCATION OF THE LOWER -LEFT
EXTENTS OF THE VIEW ON THE REFERENCED SHEET. WHEN REFERENCING
DRAWING INFORMATION BETWEEN SHEETS, BOTH THE VIEW AND SHEET
NUMBERS MUST BE QUOTED TOGETHER - EITHER IN A CALLOUT FORMAT AS
SHOWN ABOVE OR IN THE FORM;
"VIEW NO./SHEET NO." (EG Al/CS-5001)
1
2
3
4
5
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AREA
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DRAWING
B
B
A
A
1 2 3
4
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DRAWING AREA COORDINATE SYSTEM (DACS)
REVISION 2- 2023-10-09
FOR PERMITTING
ISSUED: 2022-07-28
NOT TO BE USED FOR CONSTRUCTION
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Reference No.
G-002
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INDEX: 2 OF 8

=;16 MARY'S CREEK
DESIGN DREDGE
PRIMARY OFFLOADING
QAREA, SEE SHEET C-401
1
TURTLE CREEK SHEET C-101
DESIGN DREDGE
SHEET C-101 11
TOWN OF
SUNSETBEACH .'. r�r •,+ .'
�, hfy rtA
..5 —41 t
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COBIA ST ALTERNATE
OFFLOADING AREA & G�MTEMPORARY BULKHEAD, SEE
*c d ® b5kP
n PECAN AVENUE SEASIDE
ALTERNATE ACCESS STAGING
& OFFLOADING AREA, SEE AO
G-1oz 0
1
PECAN AVENUE TEMPORARY
OFFLOADING RAMP
ATLANTIC OCEAN
TUBBS INLET
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SEAL
SCALE: 1 "=500'
REVISION 1- 2023-07-14 Sheet
FOR PERMITTING Reference No.
ISSUED: 2022-07-28 G-101
NOT TO BE USED FOR CONSTRUCTION
INDEX: 3 OF 8
4
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OLD GEORGETOWN RD _ •
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Lu 1 SITE, SEE 65
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NGS MONUMENT
SEASIDE RESET, SEE D5 BEACH DR SW
7.4±MILES TOMATERIAL G-102
PLACEMENT SITE FROM \
PRIMARY ACCESS & ,
f or
STAGING AREA E �'' _ — R
s
ALTERNATE ACCESS STAGING q ° �r?
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PECAN AVENUE SEASIDEa � r
AREAS AND TEMPORARY(A2
DREDGE SITES �� I OFFLOADING RAMP, SEE
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PRIMARY �
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PRIMARY OFFLOACIG
AREA, SEE SHEET C-41 `
" 1 Wr"
MARY'S
CREEK
Al PRIMARY OFFLOADING AREA
G-101 SCALE. NTS
B1 HAUL ROUTE PLAN
G-102 SCALE:NTS
rY
TEMPORARY
OFFLOADING
PECAN AVENUE SE
A2 ACCESS STAGING AND OFFLOADING AREA
2
-101 SCALE: NTS
ATLANTIC OCEAN
STAGING AREAS
5 6
TRANSPORTATION NOTES: N
1. CONTRACTOR SHALL PREVENT SPILLAGE OF MATERIAL ONTO PUBLIC LANDS,
INCLUDING HIGHWAYS, ROADS, AND PRIVATE PROPERTY.
2. THE CONTRACTOR SHALL INSPECT THE TRAVEL ROUTE USED TO TRANSPORT N,y gEPG�
MATERIAL TO THE MATERIAL PLACEMENT SITE AFTER EACH USE. ANY SPILLS OR
DREDGE SEDIMENT FOUND ALONG THE TRAVEL ROUTE SHALL BE IMMEDIATELY
CLEANED AND REMOVED FROM THE ROADWAY AND TRANSPORTED TO THE
MATERIAL PLACEMENT SITE. E a $
3. THE CONTRACTOR SHALL ABIDE BY ALL NCDOT STANDARDS FOR HAULING SPOIL s "s
MATERIAL ALONG THE ROADWAYS.
4. THE CONTRACTOR SHALL CLEAN ALL TRUCKS, WHEELS, AND HAULING EQUIPMENT
AS NECESSARY TO PREVENT TRACKING MATERIAL ONTO THE ROADWAYS.
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SEASIDE RESET
N: 53415.85
E:2155736.64
OR
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PLACEMENT SITES Z < < 20
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G-102 SCALE: NTS yy Qtl
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TEMPORARY GABION `z
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PROPOSED
WALL BULKHEAD r� f �z m
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EXCAVATOR B $w
LOCATION
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G-101 SCALE NTS
REVISION 1- 2023-07-14
FOR PERMITTING
ISSUED: 2022-07-28
NOT TO BE USED FOR CONSTRUCTION
SEAL
Sheet
Reference No.
G-102
4
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INDEX: 4 OF 8

itRIMARY OFFLOADING
AREA , SEE SHEET C-401
mr4
V,
MARY'S CREEK DREDGE PLAN
SCALE: V=80'
NOTES:
1. ALL CHANNELS DREDGED ARE DESIGNED FOR 3:1 SLOPE.
2. SEE SHEET G-002 FOR WORKPOINT COORDINATE TABLE.
3. NO DREDGING SHALL OCCUR WITHIN 10-FT OF ANY MARSHGRASS AT
THE TIME OF CONSTRUCTION.
4. IN AREAS WHERE THE PREVIOUSLY APPROVED DREDGE LIMIT EXCEEDS
THE PROPOSED CHANNEL BASE, THE CONTRACTOR WILL BE ALLOWED
TO DREDGE ALONG THE SIDE SLOPES CONSISTENT WITH THE DESIGN
SHOWN IN THE TYPICAL CROSS SECTION UP TO THE EXTENTS OF THE
PREVIOUSLY PERMITTED DREDGE LIMIT. ANY SUCH DREDGING WILL BE
REQUIRED TO ADHERE TO THE 10' OFFSET FROM MARSHGRASS.
5. REMAINING SHELLFISH RESOURCE DATA COLLECTED BY MOFFATT &
NICHOL ON 9/29/2023.
r
r
r 1 /
RII REDUC�QDREpGE
LIMIT DUE TO
SHELLFISH RESOURCE
II WP 0,8 REMAINING
SHELLFISH
RESOURCE,
SEE NOTE 5
I NICCT
TURTLE CREEK DREDGE PLAN
SCALE: V=80'
LEGEND:
CENTERLINE OF CHANNEL
— — — PREVIOUSLY PERMITTED DREDGE LIMITS
— — — REDUCED DREDGE LIMIT DUE TO SHELLFISH RESOURCE
REMAINING SHELLFISH RESOURCE
PROPOSED CHANNEL BASE
LIMITS OF MARSHGRASS
IWP ## WORKPOINT Q
2
40' 0' 40' 80,
SCALE: 1 "=40'
80, 0' 80, 160'
SCALE: 1"=80'
REVISION 2- 2023-10-09
FOR PERMITTING
ISSUED: 2022-07-28
NOT TO BE USED FOR CONSTRUCTION
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Sheet
Reference No.
C-101
INDEX: 5 OF 8
k

CL ALIGNMENT APPROX
EXISTING
GRADE
DESIGN DREDGE 3-7 3'
EL -3.0 MLW OVERDEPTH
EL VARIES, SEE PLAN
DESIGN DREDGE
i
VARIES VARIES
SEE PLAN SEE PLAN
MARY'S CREEK: STA 10+00 THRU 10+82
TURTLE CREEK: STA 10+00 THRU 11+00
D1 TYPICAL SECTION
C-101 NOT TO SCALE
CL ALIGNMENT APPROX
EXISTING
GRADE
DESIGN DREDGE 3'7 OVERDEPTH
EL -4.0 MLW
EL -5.0 MLW
VARIES VARIES
SEE PLAN SEE PLAN
MARY'S CREEK: STA 5+00 THRU 10+00
TURTLE CREEK: STA 7+00 THRU 10+00
C1 TYPICAL SECTION
C-101 NOT TO SCALE
CL ALIGNMENT APPROX
EXISTING
GRADE
VARIES VARIES
SEE PLAN SEE PLAN
MARY'S CREEK: STA 3+00 THRU 5+00
131 TYPICAL SECTION
C-101 NOT TO SCALE
CL ALIGNMENT
30.0'
MARY'S CREEK: STA 0+00 THRU 3+00
Al TYPICAL SECTION
C-101 NOT TO SCALE
OVERDEPTH EL
EL -6.0 MLW
APPROX
EXISTING ---
GRADE
DESIGN DREDGE
CL ALIGNMENT
VARIES VARIES
SEE PLAN SEE PLAN
TURTLE CREEK: STA 0+00 THRU 7+00
/'A4 TYPICAL SECTION
NOTE:
DREDGE LIMITS VARY, SEE
PLAN VIEWS SHEET C-101
LEGEND
DESIGN DREDGE
EXCAVATION
ALLOWABLE OVERDEPTH
EXCAVATION
EXISTING GRADE
APPROX
— — EXISTING
GRADE
EL -6.0 MLW
REVISION 2- 2023-10-09
FOR PERMITTING
0 „^TT^ISSUED: 2022-07-28„^T^„
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Sheet
Reference No.
C-300
INDEX. 6 OF 8

Al PHOTOGRAPH - EXISTING BULKHEAD
C-401 SCALE:NTS
T-
SILT FENCE, TYR SEE A5
c-ao1
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PRIMARY OFFLOADING AREA ENLARGED PLAN
SCALE: 1" = 30'
PHOTOGRAPH - EXISTING
A3 MARSHGRASS CONDITIONS
C-401 SCALE:NTS
6
N
NOTES:
-
1. TEMPORARY SILT FENCE WILL BE INSTALLED AROUND LIMITS
OF DISTURBED GROUND WITHIN PRIMARY OFFLOADING AREA.
NS 5,
2. PHOTOGRAPHS TAKEN FROM GOOGLE EARTH STREETVIEW
AND CAN ONLY ONLY BE CONSIDERED AS REPRESENTATIVE
AT THE TIME.
E a
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3. EXISTING CONDITIONS OF MARSHGRASS AS OF APRIL 24, 2023
SHOWS NO MARSHGRASS PRESENT ALONG 15 FEET OF THE
SHORELINE AS SHOWN IN A3/C-401 .
4. CONTRACTOR WILL BE RESPONSIBLE FOR REPAIRS TO
ROADWAY, SIDEWALK, AND WALKWAY DUE TO PROJECT
IMPACTS.
5. SEEDING WILL BE REQUIRED IN DISTURBED AREAS WITHIN
o
THE PRIMARY OFFLOADING AREA UPON COMPLETION OF THE
G
PROJECT.
�
a
sF SILT FENCE
LIMITS OF MARSHGRASS
TOP AND BOTTOM STRAND
SHALL BE 10 GAUGE MIN.
6' MAX. WITH WIRE
I 16' MA%. WITHOUT WIRE)
I I
MIDDLE AND VERTICAL WIRES
SHALL BE 1212 GAUGE MIN.
24" MAX.
(18" MIN.)
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USE GEOTEXTILE A MINIMUM OF
GEOTEXTILE ��
J
N
36" IN WIDTH AND FASTEN ADEQUATELY
<
TO THE POSTS AND WIRE AS DIRECTED.
COMPACTED FILL
z >
USE WIRE A MINIMUM OF 32"
N
IN WIDTH AND WITH A MINIMUM
OF 5 LINE WIRES WITH 12" VERTICAL
_ `
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SPAC G.
PROVIDE
I II 8
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5'-0" STEEL POST OF
—II -I
jLL
-II
p
THE SELF -FASTENER ANGLE STEEL
TYPE.
4 I
STEEL POST - 2'-0" DEPTH
FOR MECHANICAL SLICING METHOD;
INSTALLATION, GEOTEXTILE SHALL
BE A MAXIMUM OF 18" ABOVE GROUND
-
SURFACE.
E%TENSION OF
GEOTEXTILE AND
WIRE INTO TRENCH
srssr i ov i
A5 SILT FENCE DETAIL
C-401 SCALE:NTS
C
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30' 0' 30' 60'
SEAL
SCALE: 1 "=30'
REVISION 1- 2023-07-14 Sheet
FOR PERMITTING Reference No.
ISSUED: 2022-07-28 C-401
NOT TO BE USED FOR CONSTRUCTION
1 INDEX: 7 OF 8
a

TEMPORARY 12"0 o
TIMBER PILE � v
TEMPORARY
ROCK -FILLED
GABION BASKET
WALL, SEE NOTE
GEOTEXTILE GRID &
FILTER FABRIC UNDER
& BEHIND GABION
BULKHEAD & STONE -
EXIST. MUDLINE
EL +0.0± MLW
NOTE:
GABION BULKHEAD MAYBE LESS THAN 15- FEET DEPICTED.
CONTRACTOR TO DETERMINE PILE SPACING IN FIELD.
�1 PLAN - TEMPORARY BULKHEAD
C-401 SCALE: 1"=20"
GENERAL NOTES:
1. SURVEY AND HYDROGRAPHIC DATA AT THE PROJECT SITE IS UNAVAILABLE. LOCATIONS AND DIMENSIONS SHOWN ARE APPROXIMATE AND TO BE
DETERMINED BY THE CONTRACTOR.
2. PROVIDE CRIBBING UNDER EXCAVATOR AS NEEDED TO NOT EXCEED THE UNIFORM DISTRIBUTED LIVE LOAD DURING OPERATION OF THE EXCAVATOR.
3. WRAP #57 STONE FILL WITH GEOTEXTILE FILTER FABRIC TO PREVENT LOSS OF FILL AT ENDS OF GABION WALL.
4. CONTRACTOR SHALL COMPLETELY REMOVE ALL ITEMS ASSOCIATED WITH THE TEMPORARY BULKHEAD AT COMPLETION OF THE PROJECT.
WIRE MESH GABIONS:
1. GABION BASKETS SHALL BE MANUFACTURED FROM WELDED WIRE FABRIC, IN ACCORDANCE WITH ASTM A974, OR DOUBLE TWISTED HEXAGONAL WOVEN
STEEL WIRE MESH, IN ACCORDANCE WITH ASTM A975.
2. SUBMIT MANUFACTURER'S PRODUCT DATA SHEETS SHOWING THAT GABION BASKETS COMPLY WITH THE NOTED REQUIREMENTS.
3. GABIONS SHALL BE DELIVERED WITH ALL COMPONENTS MECHANICALLY CONNECTED AT THE PRODUCTION FACILITY. ALL GABIONS ARE SUPPLIED IN THE
COLLAPSED FORM. BUNDLES SHALL BE LABELED TO SHOW THE DIMENSIONS OF THE GABIONS INCLUDED, THE NUMBER OF PIECES, AND THE COLOR CODE.
4. WIRE MESH AND WELDED WIRE FABRIC SHALL BE MADE FROM ZINC COATED WIRES.
5. FOR GABIONS, THE ABILITY TO FUNCTION PROPERLY DEPENDS UPON THEIR STABILITY, WHICH IS PARTLY DEPENDENT UPON THE ROCKS FILLING THEM.
6. ROCK SIZES SHALL BE CHOSEN TO PREVENT THEM FROM FALLING THROUGH THE MESH OF THE GABIONS. ROCK TO FILL GABIONS SHALL BE DURABLE AND
OF SUITABLE QUALITY TO ENSURE PERMANENCE IN THE STRUCTURE AND CLIMATE IN WHICH IT IS TO BE USED. ROCK SHALL BE DELIVERED TO THE WORK
SITE IN A MANNER TO MINIMIZE ITS REDUCTION IN SIZES (BREAKDOWN) DURING THE HANDLING OF THE ROCK, AND BE PLACED AND SECURED WITHIN THE
ASSEMBLED AND INTERCONNECTED GABION.
7. THE INCLUSION OF MORE THAN 5 % BY WEIGHT OF DIRT, SAND, CLAY, AND ROCK FINES WILL NOT BE PERMITTED. ROCK MAY BE OF A NATURAL DEPOSIT OF
THE REQUIRED SIZES, OR MAY BE CRUSHED ROCK PRODUCED BY ANY SUITABLE METHOD AND BY THE USE OF ANY DEVICE THAT YIELDS THE REQUIRED
SIZE LIMITS OF 4-8 INCHES.
8. ROCKS SHALL BE HARD, ANGULAR TO ROUND, DURABLE AND OF SUCH QUALITY THAT THEY SHALL NOT DISINTEGRATE ON EXPOSURE TO WATER OR
WEATHERING DURING THE LIFE OF THE STRUCTURE.
9. STONE FILL AND CRUSHED STONE SHALL MEET THE QUALITY REQUIREMENTS OF ASTM C33.
10. SUBMIT CERTIFICATES SHOWING THAT ROCK FILL COMPLIES WITH THE NOTED REQUIREMENTS.
11. BEFORE INSTALLATION OF WIRE MESH GABIONS, CONTRACTOR SHALL LEVEL GABION WALL EXTENTS AND INSTALL A GEOTEXTILE GRID AND GETOTEXTILE
FILTER FABRIC UNDER THE GABION WALL.
12. GABIONS SHALL BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS.
13. INSTALL GABIONS FROM BARGE ON WATERSIDE OF EXISTING BULKHEAD.
EXCAVATOR
ON CRIBBING
MIN, SEE NOTE 2
I
EXIST. 1/2"0 ANCHOR
ROD, SPACING VARIES
4'-0" TO 6'-9" O.C.
EXIST. 6"x6" TIMBER
WALE
FABRICGEOTEXTILE FILTER
FABRIC
FILL VOID BETWEEN EXIST. &
TEMPORARY GABION BULKHEAD
FROM THE MUDLINE TO THE TOP
OF BULKHEAD AS SHOWN W/
NCDOT #57 STONE
EXIST. VINYL SHEET
EXIST. PILE TIP PILE BULKHEAD
EL UNKNOWN
NOTES:
1. THE MINIMUM GABION DIMENSIONS ARE AS FOLLOWS:
A. TOP LEVEL = T-0" WIDE x V-0" HIGH
B. MIDDLE LEVEL = 6'-0" WIDE X T-0" HIGH
C. BOTTOM LEVEL = 6-0" WIDE X T-0" HIGH
2. CRIBBED EXCAVATOR SHALL BE PLACED NO CLOSER TO EXISTING
VINYL SHEET PILE BULKHEAD THAN DIMENSION SHOWN.
E
C3 SECTION - TEMPORARY BULKHEAD C5 PHOTOGRAPH - TEMPORARY BULKHEAD
5-501 SCALE: 3/8"=1'-0" 5-501 SCALE: NTS
C
GEOTEXTILE:
1. PROVIDE GEOTEXTILE THAT IS A WOVEN PERVIOUS SHEET OF PLASTIC YARD AS DEFINED BY ASTM D123 MATCHING OR EXCEEDING THE MINIMUM AVERAGE
ROLL VALUES LISTED BELOW. STRENGTH VALUES INDICATED ARE FOR THE WEAKER PRINCIPLE DIRECTION.
A. GRAB STRENGTH............................................................................................................200 LBS (ASTM D4632)
B. SEAM STRENGTH............................................................................................................180 LBS (ASTM D4632)
C. PUNCTURE.........................................................................................................................80 LBS (ASTM D6241)
D. TRAPEZOID TEAR..............................................................................................................70 LBS (ASTM D4533)
E. APPARENT OPENING SIZE......................................................................................40 US SIEVE (ASTM D4751)
F. PERMITIVITY.............................................................................................................0.05 SECA (ASTM D4491)
G. ULTRAVIOLET DEGREDATION...................................................................50 % AT 500 HOURS (ASTM D4355)
2. FIBERS USED IN THE MANUFACTURING OF THE GEOTEXTILE SHALL CONSIST OF A LONG -CHAIN SYNTHETIC POLYMER COMPOSED OF AT LEAST 85 PERCENT
BY WEIGHT OF POLYOLEFINS, POLYESTERS, OR POLYAMIDES. ADD STABILIZERS AND/OR INHIBITORS TO THE BASE POLYMER, IF NECESSARY TO MAKE THE
FILAMENTS RESISTANT TO DETERIORATION CAUSED BY ULTRAVIOLET LIGHT AND HEAT EXPOSURE. RECLAIMED OR RECYCLED FIBERS OR POLYMER SHALL
NOT BE ADDED TO THE FORMULATION. GEOTEXTILE SHALL BE FORMED INTO A NETWORK SUCH THAT THE FILAMENTS OR YARNS RETAIN DIMENSIONAL
STABILITY RELATIVE TO EACH OTHER, INCLUDING THE EDGES. FINISH THE EDGES OF THE GEOTEXTILE TO PREVENT THE OUTER FIBER FROM PULLING
AWAY FROM THE GEOTEXTILE.
3. SEW THE SEAMS OF THE GEOTEXTILE WITH THREAD OF A MATERIAL MEETING THE CHEMICAL REQUIREMENTS GIVEN ABOVE FOR GEOTEXTILE YARN OR E
BOND THE SEAMS BY CEMENTING OR BY HEAT. TEST SEAMS IN ACCORDANCE WITH METHOD ASTM D4884/D4884M. THE STRENGTH OF THE SEAM SHALL BE
NOT LESS THAN 90 PERCENT OF THE REQUIRED GRAB TENSILE STRENGTH OF THE UNAGED GEOTEXTILE IN ANY PRINCIPAL DIRECTION.
4. INSTALL IN ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS.
5. SUBMIT MANUFACTURER'S PRODUCT DATA SHEETS SHOWING THAT GEOTEXTILES COMPLY WITH THE NOTED REQUIREMENTS.
DESIGN CRITERIA:
1. CODES & REFERENCES AS APPLICABLE:
A. ASCE-7 (AMERICAN SOCIETY OF CIVIL ENGINEERS - 2016)
B. ASTM (AMERICAN SOCIETY FOR TESTING AND MATERIALS - 2021)
C. 2018 NORTH CAROLINA STATE BUILDING CODE
2. GRAVITY LOADS:
A. UNIFORM DISTRIBUTED LIVE LOAD:
400 PSF @ PROPOSED EXCAVATOR LOCATION ONLY
3. DESIGN DREDGE DEPTH.........................EXISTING 4'-0" o'-o" 2'-0" 4'-0"
4. GEOTECHNICAL PROPERTIES NOT AVAILABLE, ASSUMED SOIL PARAMETERS: SCALE: 3/8"=1'-0" Q
A. EXISTING SOIL TYPE .........................SAND
B. EXISTING SOIL UNIT WEIGHT ................. 120 PCF 20' 0' 20' 40'
C. EXISTING SOIL FRICTION ANGLE .............. 26°
D. GABION CELL FILL UNIT WEIGHT .............. 100 PCF SCALE: 1"=20'
5. SEISMIC DESIGN NOT CONSIDERED FOR TEMPORARY CONDITION REVISION 1- 2023-07-14
FOR PERMITTING
ISSUED: 2022-07-28
NOT TO BE USED FOR CONSTRUCTION
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INDEX: 8 OF 8