20201692 Ver 1_Pre-Filing Meeting Request_20201105

ID#* 20201692 Version* 1
Regional Office* Wilmington Regional Office - [phone]
Reviewer List* Robb Mairs
Pre -Filing Meeting Request submitted 11/5/2020
..................................................................................................................................................................................................................................................................................................................................................
Contact Name * Mike Kirby, P.E.
Contact Email Address* [e-mail]
Project Name* Oyster Harbour Boat Ramp Replacement Permit Application
Project Owner* Oyster Harbour Homeowners Association, Inc.
Project County* Brunswick
Owner Address: Street Address
2191 Oyster Harbour Parkway
Address Line 2
aty State / Frovince / Region
Supply NC
Rbstal / Zip Code Country
28462 United States
Is this a transportation project?* r Yes r No
Type(s) of approval sought from the DWR:
r- 401 Water Quality Certification - F 401 Water Quality Certification -
Regular Express
W Individual Permit r- Modification
r- Shoreline Stabilization
Does this project have an existing project ID#?*
r Yes r No
Do you know the name of the staff member you would like to request a meeting with?
Robb Mairs
Please give a brief project description below.
The property owner, Oyster Harbour Homeowner's Association, Inc.
(OHHOA) intends to replace the existing private- community elevated boat
ramp. The existing elevated boat ramp has deteriorated over the years to
the point that replacement is needed in the near future in order to ensure
that community residents can safely launch boats for access to navigable
waters for fishing and other recreational purposes.

i ne existing eievatea boat ramp consists or two portions. i ne rirst portion
is constructed of timber support piling, timber pile caps, timber stringers,
and timber decking. It begins at the bulkhead that runs along the edge of
the upland and extends approximately 114 feet in length out towards the
Atlantic Intracoastal Waterway (AIWW). The second portion is constructed
of a cast -in -place concrete slab that is supported on timber piling. The
existing elevated concrete boat ramp begins at the end of the timber boat
ramp (Sta. 1+14) and extends approximately 107 feet; ending at Sta. 2+21.
The entire elevated boat ramp, timber and concrete, is approximately 16-
feet. in width. A 6" x 8" timber curb guard runs along both sides of the
existing boat ramp for the full length. Also, timber guard rails run along both
sides of the elevated boat ramp for approximately the first 143 feet.
In order to construct the new replacement elevated boat ramp, the existing
dilapidated elevated boat ramp will be demolished and disposed offsite.
The new replacement elevated boat ramp will be constructed, in place, to
the same dimensions (length and width), top elevations, and slopes as the
existing structure. The top elevation at the beginning of the new elevated
boat ramp will be at +12.3 feet Mean Low Water (MLW) and the top
elevation at the lower end of the new elevated boat ramp is -5.5 feet MLW;
existing and proposed. The first 114 lineal feet of the new replacement
elevated boat ramp will be constructed with treated timber; same as the
existing timber elevated boat ramp. The new replacement concrete
elevated boat ramp (approximately 107 feet in length) will be constructed of
reinforced concrete slabs supported on reinforced concrete pile caps and
prestressed concrete piles. A temporary steel sheet piling cofferdam will be
installed around the perimeter of the area where the concrete portion of
the elevated boat ramp is located. This will allow water to be pumped out to
provide dry working access to this below -water area during construction.
Additionally, approximately 215 cubic yards of mud will need to be
temporarily excavated from an area of approximately 2,120 square feet
from within the cofferdam. This is necessary so that the lower portion of the
new concrete elevated boat ramp structure can be constructed at the
specified elevations to ensure proper functionality and access during all
tide cycles and water levels. The excavated material will be temporarily
stored on the floating work barge during construction and then will be
replaced back in its original locations after construction of the new concrete
elevated boat ramp is complete. The temporary cofferdam structure will be
removed when construction is complete. Existing adjacent fixed access
decks, gangway ramps, and portions of the floating dock will need to be
temporarily removed to allow access to the work area during construction.
These structures will be replaced back in their original locations once all
boat ramp construction is completed. All demolition and new construction
work will be conducted from the water using one or two floating barges and
other small work floats.
As noted above, the proposed new replacement elevated boat ramp
structure will be constructed in the same location as the existing structure.
The existing elevated boat ramp structure is located within the range of
approximately 2-feet to 14-feet from the eastern riparian property line and
within the range of approximately 69-feet to 80-feet from the western
riparian property line. A riparian property owner waiver will be requested
from the neighbor located on the eastern side of the elevated boat ramp
property to give permission for the new replacement elevated boat ramp
being constructed inside of the 15-feet riparian offset line.
END
Please give a couple of dates you are available for a meeting.

11 /20/2020
12/4/2020
Please attach the documentation you would like to have the meeting about.
Oyster Harbour Boat Ramp P1 - P6.pdf 2.52MB
pdf only
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
• This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
• I understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.
• I also understand that DWR is not required to respond or grant the meeting request.
Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.
Signature
Ake Zaf
Submittal Date 11/5/2020

FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
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APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
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-OCEAN
ATLANTIC
OCEAN
(PLAN VIEW)
LOCATION MAP
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: -78' 20' 54.94" W
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Worerway
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ROJ ECT SITE
3483 BOONES NECK RD.
SUPPLY, NC 28462
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE —CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
0 5, 000'
GRAPHIC SCALE: 1" = 5,000'
C A
SEAL
049560 _
FILE:
Oyster Harbour Boat Ramp P—base
APPROVED BY: MWK
SCALE: AS SHOWN
ISSUE DATE: August 3, 2020
SHEET; P-1 of 6

FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
OYSTER HARBOUR HOMEOWNER'S I
ASSOCIATION BOAT LANDING FACILITY APPROX. EDGE OF AIWW CDI 0 3
MARSH GRASS
\ (TYPICAL) � o v I Io a
W w J
6p REFER TO SHEET P-3 & o z I Io z
P-4 FOR FOR ENLARGED ADJACENT PROPERTY OWNER: = I z _
�Fc/r NORTH CAROLINA DEPARTMENT I PLAN VIEWS OF PROJECT Ia ¢
OF TRANSPORTATION; AREA I z
300 DIVISION DRIVE I EXTENDED RIPARIAN cavil I AIWW
WILMINGTON, NC; 28401 PROPERTY LINE I I
o � �
0 I \ J
o pRopFRT y ��NF
ADJACENT PROPERTY OWNER:
WILLIAM NEIL & HEATHER SENTER
3491 WINDY POINT RD. SW
SUPPLY, NC, 28462
MLW = MEAN LOW WATER
MHW = MEAN HIGH WATER
d M N I ICI
°FRTy I I I APPROX. 98 FT. FROM END OF
�iNF N I EXISTING BOAT RAMP TO EDGE
OF CORPS CHANNEL
titleM ,,'' — —r.°i 290.48' (APPROX.) FROM
ilylili IlilihKIP hjl''li'Ii�IIIIiUU AIWW CORPS CHANNEL
i CENTERLINE TO APPROX.
EDGE OF MARSH GRASS
SURVEY REFERENCES
1. PLAT BY HOBBS SURVEYING COMPANY, INC. TITLED BELLAMY
PLACE MINOR SUBDIVISION DATED 1-3-2000 RECORDED
BOOK 22 PAGE 259; DATE 2-7-2000
2. TMS: 230-00-06-506
SURVEY NOTES
1. HORIZONTAL DATUM: NAD83 (2011) NORTH CAROLINA STATE
PLANE SURVEY FEET.
2. THIS MAP IS AN PARTIAL AS -BUILT AND HYDROGRAPHIC
SURVEY OF A RESIDENTIAL DOCK. NO LOT SURVEY HAS.
BEEN PROVIDED AT THIS TIME. PROPERTY LINES & OTHER
INFORMATION WERE TAKEN FROM THE REFERENCE PLAT.
3. CONTOURS SHOWN HEREON ARE REFERANCED TO
MEAN LOW WATER (MLW)
4. CONTROL MONUMENT UTILIZED:
BAILEY
PID: AJ4929
NC/BRUNSWICK
N: 85,841.37
E: 2,186,627.19
ELEV:41.5 NAVD 88
APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
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EXTENDED RIPARIAN
Illi TIi
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APPROX. CHANNEL WIDTH = 72 FT
PROPERTY LINE
APPROX. EDGE OF
o 3
z
MARSH GRASS
w � I
M
(TYPICAL)��
`'
z
I
w I
w I
REFER TO SHEET P-3 a- a AIWW
& P-4 FOR FOR a M: I a I I
ENLARGED PLAN VIEWS AIWW
OF PROJECT AREA
HYDROGRAPHIC SURVEY DATA, AIWW BOTTOM CONTOUR ELEVATIONS,
AND ELEVATIONS OF EXISTING & PROPOSED BOAT RAMP STRUCTURE
ARE REFENCED TO MEAN LOW WATER (MLW) VERTICAL DATUM; IN FEET.
(PLAN VIEW)
OVERALL PROJECT SITE & KEY SHEET
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: —78' 20' 54.94" W
APPROX. EDGE
OF MARSH
GRASS (TYPICAL)
583 FT.
I (APPROX.)
WIDTH FROM
EDGE OF
MARSH GRASS
TO EDGE
OF MARSH
GRASS
0 100'
GRAPHIC SCALE: 1" = 100'
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE —CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
CA
SEAL
049560 _
6
— MHHW = +5.22' MLW
5
— MHW = +4.85' MLW
4
3
— NAVD88 = +2.85' MLW
2
0
— MLW = 0.0'
— MLLW = -0.17' MLW
TIDE SCALE
FILE:
Oyster Harbour Boat Ramp P—base
APPROVED BY:
MWK
SCALE: AS SHOWN
ISSUE DATE:
August 3, 2020
SHEET;
P-2 of
6

FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
EXISTING NRpOF NORTH CAROLINA DEPARTMENT EXISTING TIMBER BOAT RAMP (16' X 114'). EXISTING CONCRETE BOAT RAMP (16' X 107').
Rjy OF TRANSPORTATION; 04
BULKHEAD/�y 300 DIVISION DRIVE APPROX. EDGE OF PROPOSED: DEMOLISH/DISPOSE AND CONSTRUCT PROPOSED: DEMOLISH/DISPOSE AND CONSTRUCT i
F WILMINGTON, NC; 28401 MARSH GRASS ��� NEW REPLACEMENT TIMBER BOAT RAMP IN THE NEW REPLACEMENT CONCRETE BOAT RAMP IN THE
\ (TYPICAL) SAME FOOTPRINT. SAME FOOTPRINT. I M
EXISTING `b LOCATION OF TRANSITION APPROX. 98 FT. FROM END
PAVED rn I FROM TIMBER TO CONCRETE FEXISTING BOAT RAMP TO
ACCESS / N BOAT RAMP EDGE OF CORPS CHANNEL
I ,
ROAD T, _ _ _ _
(UPLAND) O+OQ I I � I � � -r- �_ �_ I — —' —' —' — — — — • — • — — . — . — •EXTENDED RIPARIAN PROPERTY LINE— — — -
- — — — — — — — — — — — — — —
�0.f20 I ITo1+1
i I� _ EXTENDED RIPARIAN PROPERTY LINE
4 I I I r — _ — .
I I 0 0+60 I I 180" I I I-- _ T 16 FT. _ RIPARIAN T
v -�I 00 CORRIDOR 15 FT.
f •; r
+40
Lo
r rn� , _ LI I I I ;.•:.:l • : ,... r .. �. ' 2+O0 .` i'?. . 15 FT. OFFSET LINE
16 FT.
;,, • • i 2+60
EXISTING I _ II I I r :.•'
— GAZEBO ° = II II II II II II II II II I I ——�.'�::. ,•• 2+40
(UPLAND) J _ IIIiI i i i i i i i i i i i
— � I I II II I II I I III II II II II II II II III II II II III I I I I II � II ^�
L I I I I I I I I I I I I I I I I II, I I l j j �I �I �I it i �I �I I IiI
— — — J = IIIIIIII EXISTING
EXISTING i I EXISTING FIXED I I11 FLOATING
BULKHEAD I I ACCESS RAMP III Iil �5 DOCK AIWW
APPROX. EDGE OF EXISTING 4' X 28'
MARSH GRASS EXISTING FIXED GANGWAY / RAMP Ili III
I I (TYPICAL) ACCESS DECK II 1i1
/
� I EXISTING 3' X 15' IIiI
EXISTING FIXED GANGWAY / RAMP Ilillil EXISTING I
I
FLOA
N 65°5 '35" E I ACCESS WALKWAY I I II DOCK
O
�
j 51.52' o IIIIIII
15 =FT. OFFSET LINE
III
Rpp wI __V_ ..
�RTy4/�l�c o I g _.._.._._.._.._.._.._.._.._.._.._.._.._.
I RIPARIAN _
15 FT.
WILLIAM NEIL & HEATHER SENTER CORRIDOR-
3491 WINDY POINT RD. SW — — — — — • — . — • EXTENDED RIPARIAN PROPERTY LINE —
SUPPLY, NC; 28462 I — ' — ' — — — — — • — . — . — . — . — • — — — EXTENDED RIPARIAN PROPERTY LINE _ _
II —. —.
HYDROGRAPHIC SURVEY DATA, AIWW BOTTOM CONTOUR ELEVATIONS, MLW = MEAN LOW WATER
AND ELEVATIONS OF EXISTING & PROPOSED BOAT RAMP STRUCTURE (PLAN VIEW)
ARE REFENCED TO MEAN LOW WATER (MLW) VERTICAL DATUM; IN FEET. EXISTING CONDITIONS MHW =MEAN HIGH WATER 0 20'
GRAPHIC SCALE: 1" = 20'
APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: -78' 20' 54.94" W
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE -CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
C A
SEAL
049560 _
diF8
31 b S
D ,Q
FILE:
Oyster Harbour Boat Ramp P-base
APPROVED BY:
MWK
SCALE: AS SHOWN
ISSUE DATE:
August 3, 2020
SHEET;
P-3 of
6

FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
EXISTING
BULKHEAD
EXISTING
PAVED
ACCESS
ROAD
(UPLAND)
NORTH CAROLINA DEPARTMENT I PROPOSED: CONSTRUCT NEW 16' X 114' REPLACEMENT
OF TRANSPORTATION; 300 DIVISION DRIVE TIMBER BOAT RAMP IN THE SAME FOOTPRINT AS EXISTING.
., pQOp�RT WILMINGTON, NC; 28401
LOCATION OF TRANSITION FROM
y�/iyF CO / TIMBER TO CONCRETE BOAT RAMP
0 ^ `O = I SEE SHEET
16 FT. N A CROSS-SEC-TION
° 00 I 1o+20I I ,I 1� — — — — —-
\ I I I I 0+40
I II I
I L
EXISTING
- GAZEBO
(UPLAND)
I
-J
EXISTING
BULKHEAD
rn 00
WILLIAM NEIL & HEATHER SENTER
3491 WINDY POINT RD. SW
SUPPLY, NC; 28462
0+60 0+80I
1+00 I
1\ I I I I I -
,� ry
1 I
SEE SHEET P-6 FOR /
CROSS-SECTION A -A
i
PROPOSED: TEMPORARY EXCAVATION WITHIN THE LIMITS OF 1
THE TEMPORARY COFFERDAM IN ORDER TO CONSTRUCT THE 0'
CONCRETE PORTION OF THE NEW BOAT RAMP. APPROX. 215 I
CY OF MATERIAL WILL BE EXCAVATED FROM AN AREA OF
APPROX. 2,120 SF IS ESTIMATED. THE EXCAVATED MATERIAL 1
WILL BE TEMPORARILY STORED ON THE FLOATING BARGE AND APPR SXj 98 FT. FROM END
THEN REPLACED BACK IN THE SAME ORIGINAL LOCATIONS OF EXISTING BOAT RAMP TO
AFTER PILING AND PILE CAPS ARE INSTALLED AND AFTER EDGE OF CORPS CHANNEL
- - - - -INSTALLING THE NEW CONCRETE BOAT RAMP SLAB.
- - - �• - . - . - . - . - • - EXTENDED RIPARIAN PROPERTY LINE
�-- _ N I _%- - - - - - - -'-
' iu r i. -
1+60Y^'
20
20.2
I I I II II II III; III Ill�llllllllllil it I i ,i / : ,�'•:. '�',' ;.., ..:
III IIIIIIII�I I I I I I
15 FT. RIPARIAN
CORRIDOR
15-FT. OFF -SET - LIN -E-f --
2+40
2+601
^
1 1 1i1 11 . I 1 1 1 1 1 1
RAMP
1 1 1 1 1 1 11 ifl I i it it I III
Jill (EXISTING /PROPOSED)
I I I
I EXISTING
PROPOSED: EXISTING GANGWAYS / RAMPS,
II
FIXED
FLOATING DOCK, FIXED ACCESS RAMP, & FIXED
I it
ACCESS
DECK TO BE TEMPORARILY REMOVED DURING BOAT
WALKWAY
RAMP DEMOLITION / CONSTRUCTION ACTIVITIES
I
ANRE-INSTALLED SAMEEXISTING LOCATION
li lil
AFTER THENEW BOATRAMPREP REPLACEMENT
APPROX. EDGE OF
PROJECT IS COMPLETE
PROPOSED: CONSTRUCT NEW 16' X 107'
MARSH GRASS
REPLACEMENT CONCRETE BOAT RAMP IN
(TYPICAL)
THE SAME FOOTPRINT AS EXISTING. i
11111111 �1
PROPOSED: APPROX. LOCATION/LAYOUT LIMITS OF v AIWW
J TEMPORARY SHEET PILE COFFERDAM FOR NEW BOAT
° RAMP CONSTRUCTION (APPROX. 120' X 28' = 3,360 SF).
_.. _.. _.. _ 15.-FT. OFFSET LINE _ TO BE REMOVED UPON PROJECT COMPLETION.
15 FT. � RIPARIAN
CORRIDOR
- ,EXTENDED RIPARIAN PROPERTY LINE-�
- - ' - - • - . - . - . - . - , - - EXTENDED RIPARIAN PROPERTY LINE
HYDROGRAPHIC SURVEY DATA, AIWW BOTTOM CONTOUR ELEVATIONS,
AND ELEVATIONS OF EXISTING & PROPOSED BOAT RAMP STRUCTURE
ARE REFENCED TO MEAN LOW WATER (MLW) VERTICAL DATUM; IN FEET.
APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
(PLAN VIEW) MLW = MEAN LOW WATER
PROPOSED NEW BOAT RAMP MHW = MEAN HIGH WATER
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: -78' 20' 54.94" W
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE —CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
0 20'
GRAPHIC SCALE: 1" = 20'
CA
SEAL
049560 _
(iv
v S'
D ,Q
FILE:
Oyster Harbour Boat Ramp P—base
APPROVED BY:
MWK
SCALE: AS SHOWN
ISSUE DATE:
August 3, 2020
SHEET;
P-4 of
6

FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
PROPOSED: CONSTRUCT NEW 16' X 114' REPLACEMENT TIMBER
BOAT RAMP IN THE SAME FOOTPRINT AS EXISTING.
(VARYING ELEVATION / SLOPE THROUGHOUT).
TOP ELEVATION OF THE EXISTING / PROPOSED REPLACEMENT
TIMBER BOAT RAMP RANGES FROM APPROX. +12.3' MLW DOWN
TO APPROX. +8.4' MLW; AS SHOWN BELOW.
EXISTING: TIMBER GUARDRAIL
PROPOSED: INSTALL NEW GUARDRAIL
TO MATCH THE EXISTING WHEN THE
NEW REPLACEMENT BOAT RAMP IS
CONSTRUCTED (TYPICAL)
+20 -
TOP OF BOAT RAMP
ELEV. = +12.3' MLW -
(MHW) =
+4.85' MLW
(MLW) 0
-10 -
0+00
EXISTING BOTTOM (TYPICAL)
I 1 1
0+20 0+40 0+60
PROPOSED: EXISTING TIMBER PILING AND BOAT
RAMP TO BE REMOVED AND REPLACED WITH
NEW TIMBER PILING AND BOAT RAMP (TYPICAL)
EXISTING: TIMBER CURB
PROPOSED: INSTALL NEW TIMBER CURB TO MATCH
THE EXISTING WHEN THE NEW REPLACEMENT BOAT
RAMP IS CONSTRUCTED (TYPICAL)
PROPOSED: CONSTRUCT NEW 16' X 107' REPLACEMENT CONCRETE
BOAT RAMP IN THE SAME FOOTPRINT AS EXISTING.
TOP ELEVATION OF THE EXISTING / PROPOSED REPLACEMENT
CONCRETE BOAT RAMP RANGES FROM APPROX. +8.4' MLW DOWN
TO APPROX. -5.5' MLW; AS SHOWN BELOW.
LOCATION OF TRANSITION
FROM TIMBER TO
CONCRETE BOAT RAMP
(APPROX. STA. 1+114)
I / I I
0+80 1+00 1+20
PROPOSED: NEW TIMBER
PILING FOR NEW TIMBER
BOAT RAMP (TYPICAL)
TIMBER BOAT RAMP BEGINS AT STA. 0+00
AND CONTINUES TO APPROX. STA. 1+14
(EXISTING & PROPOSED REPLACEMENT)
HYDROGRAPHIC SURVEY DATA, AIWW BOTTOM CONTOUR ELEVATIONS,
AND ELEVATIONS OF EXISTING & PROPOSED BOAT RAMP STRUCTURE
ARE REFENCED TO MEAN LOW WATER (MLW) VERTICAL DATUM; IN FEET.
APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
MLW = MEAN LOW WATER
MHW = MEAN HIGH WATER
APPROX. EXTENTS OF PROPOSED TEMPORARY SHEET PILE
COFFERDAM. ACTUAL LOCATION MAY VARY DURING
CONSTRUCTION DEPENDING ON CONTRACTOR'S EQUIPMENT
ACCESS REQUIREMENTS.
Owrt OF BOA T
(EXISTING & PROPOSED)
�X* 13.51%
1+40% 1+60 1+80
PROPOSED: EXISTING TIMBER PILING AND
CONCRETE BOAT RAMP TO BE REMOVED AND
REPLACED WITH NEW CONCRETE PILING AND
CONCRETE BOAT RAMP (TYPICAL)
PROPOSED: NEW CONCRETE PILING FOR
NEW CONCRETE BOAT RAMP (TYPICAL)
CONCRETE BOAT RAMP BEGINS AT
APPROX. STA. 1+14 AND CONTINUES
TO THE END AT APPROX. STA. 2+21
(EXISTING & PROPOSED REPLACEMENT)
(SIDE VIEW)
PROPOSED NEW BOAT RAMP
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: —78' 20' 54.94" W
APPROX. 98 FT. FROM END
OF EXISTING BOAT RAMP TO
EDGE OF CORPS CHANNEL
EXISTING BOTTOM (TYPICAL)
2+00 2+20
- +20
- +10
(MHW) _
+4.85' MLW
- 0 (MLW)
BOTTOM OF BOAT RAMP
ELEV. = -5.5' MLW
1 —10
2+40 2+60
APPROX. LIMIT/LOCATION OF LOWER END OF SHEET
PILE COFFERDAM. ACTUAL LOCATION MAY VARY
DURING CONSTRUCTION DEPENDING ON THE
CONTRACTOR'S EQUIPMENT ACCESS REQUIREMENTS.
APPROX. LIMIT OF PROPOSED TEMPORARY EXCAVATION TO
ALLOW ADEQUATE DEPTH FOR DEMOLITION OF EXISTING
CONCRETE BOAT RAMP AND CONSTRUCTION OF THE NEW
REPLACEMENT BOAT RAMP. APPROX. 215 CY OF
MATERIAL TO BE EXCAVATED FROM AN AREA OF APPROX.
2,120 SF. THE EXCAVATED MATERIAL WILL BE TEMPORARILY
STORED ON THE FLOATING BARGE AND THEN REPLACED
BACK IN THE SAME ORIGINAL LOCATIONS AFTER SUPPORT
PILING AND PILE CAPS ARE INSTALLED AND AFTER
INSTALLING THE NEW CONCRETE BOAT RAMP SLAB.
NOTE:
PROPOSED NEW REPLACEMENT BOAT RAMP TO BE CONSTRUCTED TO
0 20' APPROXIMATELY THE SAME TOP ELEVATIONS, SLOPES, AND PLAN -VIEW
GRAPHIC SCALE: 1" = 20' FOOTPRINT AS THE EXISTING BOAT RAMP.
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE —CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
CA
SEAL
049560 _
FILE:
Oyster Harbour Boat Ramp P—base
APPROVED BY:
MWK
SCALE: AS SHOWN
ISSUE DATE:
August 3, 2020
SHEET;
P-5 of
6

NOTE:
PROPOSED NEW REPLACEMENT BOAT RAMP TO BE CONSTRUCTED TO
APPROXIMATELY THE SAME TOP ELEVATIONS, SLOPES, AND PLAN —VIEW
FOOTPRINT AS THE EXISTING BOAT RAMP.
TOP HEIGHT OF THE EXISTING
TIMBER BOAT RAMP RANGES
FROM APPROX. +12.3' MLW
TO +8.4' MLW. PROPOSED
NEW REPLACEMENT TIMBER
BOAT RAMP TO BE
CONSTRUCTED TO MATCH
WITH SAME ELEVATIONS.
PROPOSED: EXISTING TIMBER PILING
AND BOAT RAMP TO BE REMOVED
AND REPLACED WITH NEW TIMBER
PILING AND BOAT RAMP (TYPICAL)
EXISTING BOTTOM;
ELEVATION VARIES WITH
LOCATION (TYPICAL)
PR(
EX
FOR PERMITTING PURPOSES ONLY; DO NOT USE FOR CONSTRUCTION
TIMBER BOAT RAMP; APPROX. 16—FT. WIDTH
(EXISTING & PROPOSED REPLACEMENT) no
EXISTING: TIMBER GUARDRAIL
(POSED: INSTALL NEW GUARDRAIL TO MATCH THE
STING WHEN THE NEW REPLACEMENT BOAT RAMP
IS CONSTRUCTED (TYPICAL)
EXISTING & PROPOSED
TIMBER STRINGERS /
BOAT RAMP FRAMING
(TYPICAL)
Lj " Lill vV" L0
SFCTTnN A -A
APPLICANT:
OYSTER HARBOUR HOMEOWNER'S ASSOCIATION, INC.
2191 OYSTER HARBOUR PARKWAY
SUPPLY, NC 28462
AGENT:
MIKE KIRBY, P.E.
1158-1 VILLAGE CREEK LANE
MOUNT PLEASANT, SC 29464
[phone] email: [e-mail]
(TYPICAL CROSS—SECTION)
TIMBER BOAT RAMP
(EXISTING & PROPOSED)
EXISTING TIMBER
PILING (TYPICAL)
RPOPOSED NEW
CONCRETE
PILING (TYPICAL)
EXISTING BOTTOM;
ELEVATION VARIES
WITH LOCATION
(TYPICAL)
CONCRETE BOAT RAMP; APPROX. 16—FT. WIDTH
(EXISTING & PROPOSED REPLACEMENT)
EXISTING: TIMBER GUARDRAIL
PROPOSED: INSTALL NEW GUARDRAIL TO MATCH THE
EXISTING WHEN THE NEW REPLACEMENT BOAT RAMP
IS CONSTRUCTED (TYPICAL)
EXISTING: 6" X 8" TIMBER CURB
PROPOSED: INSTALL NEW TIMBER CURB TO MATCH
THE EXISTING WHEN THE NEW REPLACEMENT BOAT
RAMP IS CONSTRUCTED (TYPICAL)
EXISTING / PROPOSED CONCRETE BOAT RAMP
' PROPOSED CONCRETE• PILE CAP FOR NEW CONCRETE BOAT RAMP'• .;
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HYDROGRAPHIC SURVEY DATA, AIWW BOTTOM CONTOUR ELEVATIONS,
AND ELEVATIONS OF EXISTING & PROPOSED BOAT RAMP STRUCTURE
ARE REFENCED TO MEAN LOW WATER (MLW) VERTICAL DATUM; IN FEET.
(COSS-SECTION VIEWS)
PROPOSED NEW BOAT RAMP
PROJECT NAME:
OYSTER HARBOUR BOAT RAMP REPLACEMENT PERMIT APPLICATION
WATER BODY:
ATLANTIC INTRACOASTAL WATERWAY (AIWW)
CITY / TOWN: SUPPLY
COUNTY: BRUNSWICK LAT.: 33' 54' 43.59" N
STATE: N.C. LONG.: -78' 20' 54.94" W
SECTION B-B
(TYPICAL CROSS—SECTION)
CONCRETE BOAT RAMP
(EXISTING & PROPOSED)
PROPOSED ACTIVITY:
DEMOLISH THE EXISTING DILAPIDATED
BOAT RAMP (TO BE DISPOSED OFFSITE)
AND RE —CONSTRUCT A NEW BOAT RAMP
IN THE SAME LOCATION IN ORDER TO
PROVIDE RESIDENTS OF THE OYSTER
HARBOUR HOMEOWNER'S ASSOCIATION
WITH SAFE ACCESS TO NAVIGABLE
WATERS FOR FISHING AND
RECREATIONAL PURPOSES.
CA
SEAL
049560 _
MLW = MEAN LOW WATER
MHW = MEAN HIGH WATER
TOP HEIGHT OF THE EXISTING
CONCRETE BOAT RAMP RANGES
FROM APPROX. +8.4' MLW DOWN
TO -5.5' MLW. PROPOSED NEW
REPLACEMENT CONCRETE BOAT
RAMP TO BE CONSTRUCTED TO
MATCH WITH SAME ELEVATIONS.
PROPOSED: EXISTING TIMBER
PILING AND CONCRETE BOAT
RAMP TO BE REMOVED AND
REPLACED WITH NEW CONCRETE
PILING AND CONCRETE BOAT
RAMP (TYPICAL)
0 4'
GRAPHIC SCALE: 1" = 4'
FILE:
Oyster Harbour Boat Ramp P—base
APPROVED BY:
MWK
SCALE: AS SHOWN
ISSUE DATE:
August 3, 2020
SHEET;
P-6 of
6