WV0700180_Site Plan_20240722

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DARE COUNTY
NORTH CAROLINA
VICINITY MAP
SOUTH NAGS HEAD
NAGS HEAD, NC / / ♦ /
U.S. 64 ATLANTIC OCEAN
S. OLD OREGON
INLET ROAD
ROANOKE SOUND (SR 1234)
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a TIDE DRIVE
N.C. 12 OUl
° n ISABELLA ST.
}/ ISLINGTON ST.
INDIGO ST.
SITE
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M.H.W. @ ELEV.
NAVD 88 AS MEASURED BY
S.S.S. 10-11-2022
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4' WALKWAY
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♦ STAIRS AS REQUIRED �
10'x10' WOOD ♦
DUNE DECK
STORMWATER RETENTION SWALE 1
/
PROPOSED WASTEWATER REPAIR SYSTEM
DEPTH = 12" 3:1 SIDE SLOPES
/
/
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TS-II TREATMENT WITH L.P.P. DISPOSAL BED
TOP ELEVATION = 6• to 8' +/-
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/
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DESIGN FLOW = 720 GPD
BOTTOM ELEVATION = 5' to 7' +/-
/ ♦
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BED LTAR = 1.0 gpd/sq. ft.
/ OPEN VOLUME = 730 cu.ft
5A"REBAR
/ USE 40% BED AREA REDUCTION PER .1970(j)3(B)
/ GAZEBO WITH WOOD DECK FLOOR
22" DEEP
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/ MINIMUM
BED AREA 720/1.0 x 0.6 = 432 SQ. FT.
DRAINLINE LENGTH = 432/3 = 144 L.F.
FLOOR LEVEL WITH POOL DECK GRADE
/
PROPOSED FLOOR ELEV. = 7.9'
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0 .46'
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DRAINLINES AT 29.0 L.F. EACH AT 3' O.C.
SECOND FLOOR BRIDGE DECK ♦
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PROPOSED WASTEWATER ACTIVE SYSTEM
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TO GAZEO TOP DECK
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SYSTEEAT
TREATMENT STANDARD TS-1
/ STAIR AND STAIR TOWER ® 9
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DESIGN FLOW - 720 GRID (6 BEDROOMS)
/ STRUCTURALLY
DETACHED FROM MAIN ® 6
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6 PODS REQUIRED (1 PER BEDROOM)
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STRUCTURE
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LOADING RATE = 1.0 GPD/ SQ. FT.
GRAVEL BED AREA = Q/LTAR = 720 sq.ft.
USE 25% BED REDUCTION
REQUIRED GRAVEL BED AREA = 540 sq.ft.
/ PROPOSED DWELLING
/ 3 STORY FRAME ON PILING FOUNDATION
6 BEDROOMS, 12 PERSON OCCUPANCY
/ WASTEWATER DESIGN FLOW=720 gpd
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REQUIRED GRAVEL BED PROVIDED - 560 sq.- EXISTING GRADE AT BUILDING PAD = 5.7 +/- 2
/ PROPOSED BUILDING SLAB ELEV. = 6.23' ® - Zoo 0 ♦ \__ FLSNV AS STAKED /
BOTTOM OF LOW GIRDER
= 12.10' min.
+/- '\♦ \ GP��bO �'�P�� ♦ o BY TOWN OF NAGS HEAD
LOWEST FLOORELEVATION 13.88' oe,
20. \ OCTOBER 2022 /
EX. %" \
REBAR
FLUSH ON LINE
0.21. FROM PROPERTY
1.
EX. 4"x4"
CM-
5" TALL
GRAPHIC SCALE
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20 0 10 20 40 --\ 80
( IN FEET )
1 inch = 20
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PURAFLO POD (TYPICAL)
6 REQUIRED
30' FRONT
SETBACK,
EX. WM
EX. WM
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♦ PUMP TANK �v ' / ♦, / /
GALO
♦H20 LOADING
SWIMMING POOL
-2,036 GAL. CAPACITY aye ♦, / / /
♦ LEISURE POOLS -ELEGANCE 30 ♦ / / 14.17'x 6.42' SEPTIC TANK �a PROPOSED POOL DECK ELEV. = 7.9' /
GALD STB-449 �' "�� ''� �� �`�
♦ H2O LOADING
1,528 GALLON CAPACITY - - Nm \ �%"REBAR PRECAST INTERLOCKING CONCRETE PAVERS ♦♦ /
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♦ 14.1Tx 6.42' ,' ,' ,- o+ 8" DEEP WITH WOOD BORDER INSTALLED
o - �' \ PER MANUFACTURERS AND NAGS HEAD /
♦w- TALL TION IN GUIDELINES ' ' INSTALLATION
SUBJECT PROPERTY:
AREA . 516 aq.k. /
LOT 9, BLOCK 10, SECTION 2, HOLLYWOOD BEACH
♦ ,''� j ♦"♦ / STATIC LINE AS PER M.B. 1 PG. 78, D.B. 2396 PG. 0944
/ /
♦ /< e- ��P� 8'x8' WOOD HOT TUB DECK / PUBLISHED CAMA DATA AREA = 24,690 sq.ft. to MHWL
4
` REBARS
\ � FLUSH
\�\\ 2.35'
\
\ 1 \ POOL EQ.
\ \ �\ ''' ��jx�� ♦ STAND (3x3) / 2020 Setback Factors AREA = 14,093 sq.ft. static line
���\ '�\\ \ ♦ / ♦ Feature: 2020 oceanfront Erosion Rate Setback Factors STREET ADDRESS • 9115 SOUTH OLD OREGON INLET RD.
♦ �� '�'' \ 0 Setback Factor: /
- - �J�' / NAGS HEAD, DARE COUNTY, NORTH CAROLINA
c ' /' ` '��\\\\ AVM"` ♦ �N.F.I.P. ZONE: "VE" / OEA(feet): 360 /
�, ♦ DARE COUNTY PIN : 0719 14 22 2967
STRM100_RE 25.000000
,. ♦ (B.F.E.: 10.0') / / PARCEL NUMBER: 007238000
`\ \ y ♦ (R.F.P.E.. 12.0') Effective Date: 4/1/2020, 8:00 PM FEMA - N W F
♦ DATA: COMMUNITY NAGS HEAD. TOWN 0
,29 vtV / CID 375356 PANEL- 0719 SUFFIX- K
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♦ N.F.I.P. ZONE: "AO" / ♦ / MAP NUMBER 3730071900K
1, EFFECTIVE DATE - 06/19/20
\\ (DEPTH: 2.0') /
O �' ♦ R.F.P.E.: 12.0' / ♦ / FIRM ZONE - VE(10), AO (DEPTH 2.0') AND X (0.27) AS SHOWN
'♦ O P AA ` TORMWATER RETENTION SWALE 2 '( ) FLOOD ZONES SUBJECT TO CHANGE BY FEMA
DEPTH = 12", 3:1 SIDE SLOPES ♦ / ELEVATIONS REFERENCED TO NAVD 1988 DATUM
p \ TOP ELEVATION = 6' to 8 +/- ♦ / /
BOTTOM ELEVATION = 5' to 7' Reference level is:
\/ o ♦ ��'' OPEN VOLUME = 563 cu.ft. ♦ / The reference level is the bottom of the lowest horizontal structural member of the
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\ ♦ '� '��\\\`\� `�� 2q / lowest floor for structures in Coastal High Hazard Areas (CHHA) east of NC 12 and
SR 1243.
PRECAST INTERLOCKING CONCRETE PAVERS / Coastal High Hazard Areas (CHHA) - Properties located to the east of NC 12 and
�p♦\AVO WITH 8" CONCRETE BORDER INSTALLED / SR 1243 are located in an active oceanfront environment that is vulnerable to storm
PER MANUFACTURERS AND NAGS HEAD / ♦, / surge, erosion, sea level rise, and other hazards. These areas have special flood
` INSTALLATION GUIDELINES hazards associated with high velocity waters from storm surges or seismic activity
� AREA . 1,819 eq.H. / ♦ / 9 y 9 y
1 N.F.I.P. ZONE: "AO' SMALL STRUCTURE / / and, therefore, the RFPE is 12 feet NAVD 1988.
/
(DEPTH: 2.0') TYPICAL PARKING SPACE / ♦ (5,000 sq. ft. MAX.) /
S (R.F.P.E.: 12.0') 10'xl8' WITH 12' DRIVE AISLE 120' CAMA SETBACK / / Height means the vertical distance measured from the tallest part of a building to
5 SPACES SHOWN (4 REQUIRED) / 4' EROSION RATE x 30) / the ground at the base of the building. Typically, height is measured from the tallest
♦ 9 / F./ portion of the roof to the top of the concrete slab. In cases where a concrete slab
+ NI. ,2%) / is not present, height is measured from the tallest art of the roof to the average
♦ .F. E.: 12 / / / finished grade using the corners at the base of the building.
HEAD UTILITY ` / / / / In coastal high hazard areas and VE zones east of NC 12 and SR 1243 as defined
OVERHEAD
UTILITY
♦ / / in 11.42.3.1.1., height shall be measured from regulatory flood protection elevation
(lowest horizontal structural member). In cases where the finished grade elevation is
♦ / / / above the regulatory flood protection elevation, height shall be measured at
♦ / / / approximately eighteen (18) inches above the highest, undisturbed, finished grade
directly beneath the structure (free -of -obstruction).
♦ / / / Maximum Building Height in CR Zoning district = 35 feet or 42 feet if utilizing 8/12
♦ / / / roof pitch.
PROPERTY ZONING: R-2 MEDIUM -DENSITY RESIDENTIAL
\ / ♦ _ 240' CAMA SETBACK /
FOR STRUCTURES
5,000-9,9999 SO. FT.
WOVEN GEOTEXTILE FABRIC PLACED ALONG
SIDES OF BASE LAYER AND PAVER
4" MINIMUM OVERLAP UNDER BASE LAYER
FINISHED GRADE
WOOD OR POLY PA
EDGE RESTRAINT
REFER TO TOWN OF NAGS HEAD TYPICAL RESIDENTIAL
PAVER INSTALLATION DETAIL FOR ADDITIONAL PERMEABLE
PRECAST CONCRETE PAVER INSTALLATION MINIMUMS (DETAIL 102 AND 104).
PERMEABLE PAVER. WOVEN GEOTEXTILE FABRIC PLACED ALONG SUBMIT PAVER MATERIALS TO THE TOWN OF NAGS HEAD
3 1/8" THICK MINIMUM SIDES OF BASE LAYER AND PAVER FOR APPROVAL PRIOR TO ORDERING MATERIALS AND
BACK FILL PAVER VOIDS WITH 4" MINIMUM OVERLAP UNDER BASE LAYER INSTALLING PERMEABLE PAVERS.
CLEAN COURSE SAND FILL
/ CONCRETE TURFSTONE BORDER AND WALK
6" MINIMUM THICKNESS PRECAST CONCRETE GRID PAVER
4,000 PSI CONCRETE TURFSTONE OR EQ.
SLOPE SURFACE TO DRAIN INTO TURFSTONE 3 1/8" THICK MINIMUM
BACK FILL PAVER VOIDS WITH
FINISHED GRADE CLEAN COURSE SAND FILL
......... - -- -- - -- - SLOPE TO DRAIN-
2" THICK, NO. 8 STONE/
LEVELING COARSE
4" THICK, OPEN AGGREGATE BAS
LAYER (NO. 57 STONE)
LIGHTLY COMPACTED SANDY SOIL BASE
SWIMMING POOL PERMEABLE PAVER SECTION
NOT TO SCALE
2" THICK, NO. 8 STONE
/LEVELING COARSE
4" THICK, OPEN AGGREGATE BASE
/LAYER (NO. 57 STONE)
LIGHTLY COMPACTED SANDY SOIL BASE
TURFSTONE f PICP PAVING AND CONCRETE BORDER DETAIL
NOT TO SCALE
STORMWATER MANAGEMENT CALCULATIONS
SEASONAL HIGH WATER TABLE ELEVATION:
The seasonal high water table on this lot is 4.8' +/- based
on a site evaluation the Dare County Health Department
dated 6-02-23. SHWT = 24" +/- BG.
STORMWATER DESIGN STANDARDS:
Design storm = 3.5" two hour rainfall event
Standard infiltration rate = 10 inches per hour
Sandy soil void area = 20%
Washed aggregate void area = 40%
Permeable Paver Surfaces do not contribute runoff when
installed in accordance with the Town of Nags Head
Standard 102 and 104
BUILT UPON AREA CALCULATIONS:
Structure (house, decks and steps) = 2,247 sq.ft.
Concrete driveway border = 147 sq.ft.
Permeable parking area =
Permeable pool decking =
Note: Permeable parking areas and pool decking areas are
self -managing for the Design Storm Event when installed in
accordance with the Town Standards noted on the detail.
Swimming pool surface area =
Wood hot tub decking = *
Gazebo with wood floor = 200 sq.ft.
Bridge deck to gazeo top deck =
Detached equipment stands =
Wood dune deck = *
Wood walk to veg. line =
Total Built Upon Area = 2,594 sq.ft.
* Denotes surfaces which are not included as built upon area
STORMWATER STORAGE REQUIRED:
Total Built Upon Area = 2,594 sq.ft.
Stormwater Storage Required = 2,594 x 3.5/12 = 756 cu.ft.
OPEN STORMWATER SWALE VOLUME:
Stormwater Retention Swale 1 Stormwater Retention Swale 2
Depth = 12" 3:1 side slopes Depth = 12" 3:1 side slopes
Top elevation = 6' to 8' +/- Top elevation = 6' to 8' +/-
Bottom elevation = 5' to 7' +/- Bottom elevation = 5' to 7' +/-
Open Volume = 730 cu.ft Open Volume = 563 cu.ft
Total Stormwater Storage in Open Swales = 1,293 cu.ft.
STORMWATER STORAGE REQUIREMENT FOR DESIGN STORM MET
RESIDENTIAL LOT COVERAGE CALCULATIONS
1. TOTAL LOT DEVELOPMENT AREA=14,093 sq.ft. to static line
2. MAXIMUM PERMITTED COVERAGE:
a. MAXIMUM LOT COVERAGE = 33% = 5,406 sq.ft.
b. MAXIMUM LOT COVERAGE WITH STORMWATER MANAGEMENT = 36%
REQUIRES STORMWATER MANAGEMENT PLAN TO ACCOMMODATE 3.5 INCH
DESIGN STORM PER UDO 8.6.6.2
3. LOT DEVELOPMENT COVERAGE:
STRUCTURE (HOUSE, DECKS AND STEPS) = 2,247 sq.ft.
CONCRETE DRIVEWAY BORDER = 147 sq.ft.
PERMEABLE PARKING AREA (surface area x 0.67) = 1,085 sq.ft.
1,619 sq. ft. x 0.67 = 1,085 sq.ft.
PERMEABLE POOL DECKING (surface area x 0.67) = 361 sq.ft.
539 sq. ft. x 0.67 = 361 sq. ft.
SWIMMING POOL SURFACE AREA = 399 sq.ft.
WOOD HOT TUB DECKING = 64 sq.ft.
GAZEBO WITH WOOD FLOOR = 200 sq.ft.
BRIDGE DECK TO GAZEO TOP DECK = 37 sq.ft.
DETACHED EQUIPMENT STAND = 39 sq.ft. (HVAC)
DETACHED EQUIPMENT STAND = 9 sq.ft. (POOL MECH)
WOOD DUNE DECK = 100 sq.ft.
WOOD WALK to Veg. Line = 255 sq.ft.
4. TOTAL LOT COVERAGE = 4,904 sq.ft.
5. LOT DEVELOPMENT COVERAGE = 4,904/14,093 = 34.8%
* REQUIRES STORMWATER MANAGEMENT PLAN TO ACCOMMODATE
3.5 INCH DESIGN STORM PER UDO 8.6.6.2
SURVEY REFERENCE:
SURVEY DATA FROM A SURVEY BY STYONS SURVEYING SERVICES, M.
DOUGLAS STYONS JR. P.L.S. THE SURVEY IS TITLED "TRAFFIC AND
WEATHER, LLC, LOT 9, BLOCK 1, HOLLYWOOD BEACH, SECTION TWO".
THE PLAT IS DATED 10-11-22 WITH FILE NUMBER 22-201.
NOTES FROM SURVEY:
Current Owner: Traffic and Weather, LLC
Address: 9115 S. Old Oregon Inlet Road
Total Lot Area = 24,690 Sq. Ft.
Lot Area West of Veg. Line = 16,380.6 Sq. Ft.
Lot Coverage Info.:
Concrete Drive = 3,403.17 Sq. Ft.
Structure Under Roof = 2,531.61 Sq. Ft.
Decking, Steps & HVAC = 1061.67 Sq. Ft.
River Rock = 222.84 (.67) = 149.30 Sq. Ft.
Total Lot Coverage = 7145.75 Sq. Ft. (43.62%)
Setbacks shown are as per the Subd. Plat and as per Zoning;
they do not reflect any Restrictive Covenants that may exist.
This survey was based on the existing property corners found
in conjunction with the recorded reference given.
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DATE:
SCALE:
11-27-24
1 "=20'
DESIGNED:
DRAWN:
MWR
MWR
SHEET:
1
2
of
CAD FILE:
mckaewr-9115 -*-nap hwd&g
PROJECT NO:
090120