SW8960415_APPROVED PLANS_19960621

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 gSOD� ( S
DOC TYPE ❑ CURRENT PERMIT
[` APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE I KR& 0� 2t
YYYYMMDD

F
. SA. 1316 a r,.
LEGEND ---- - - Hi h Y 904 _ --- - --- - --- - --. - - - W
25 EXISTING GRADE T I►T ay 1 ` _ -_---- yIYR'h-EG " . `'R•'
NC Hlh � _ .
- n s
n PROPOSED GRADE 49.26 + -- - --- TBM 10"9° EL50 00.,lr°a"'e"n�) 47.99v '
_.
A ent.
®® PROPOSED SPOT ELEVATION nt 'B R gp R/'M a
49.45 + - - Edge of Pave o ''� m to Z .1#
.�*
+49.40_ -
+'m.3 EXISTING SPOT ELEVATION _ -_--- - - 'I9 __ - +
_ - . "6' �49.0'J Fine fN�ant \ -_- E - - v +?
-- - - --- ----- -- - -------- E - y Pi o t �
49'0 = PP N16 Si T u O`
e23'18"E __ E - -- E - �� a9_o_ P
°e +48.49 N 83 PP _0 E ---- E _ E i 48.9' + \ 7
E V
E 48 9'1 48.z3', -
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Inee .29
r-8-7 JI 46. B 'j
E E L
VICINITY MAPS `
Scale. , Inch 1-1/2 Mile
ITYP. I I 'I CONSTRUCTION ENTRANCE
48.37 + 47.57 47.87 x;
SILT FENCE (TYP 48.8
TO BE INSTALLS 3 PROPOSED MARL PARKING
AS NEEDED _ lee t - 47.41 \ 04
<--
48.5 I I J 7.38 \S
1 265
46 7T �j I Y 48.76 467• 7 (1 ' \ a
I L 48.4 'A \4
fi
E46A ]
48.6' ++8.95
g' SIDEWALK
- .6
48 ' c6 frTi,�
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-- SILT FENCEA(LTYP)
>f' O• TO BE INSTALLED \ Stormwater Data Table
PROPOSED AS 0
• 24 A9 COMMERCIAL `A Impervious Surface:
U 47 60 47°6 Building 10800 SF z'
--- BUILDING Parking 17400 SF
4 - a8.3 Il F.F.E. 49.3' +48 .4 + Future - - 22800 SF �
2 =
df LT=•"J 4 Q
TOT.,kL: 51000 SF
od Total Site Area: 60000 SF
Parking Data Table -' 7. t,, \ % lzrtpervious: 85 % ;
Required Parking Spaces (1/150 S-F. of selling space): 45 Spaces '
Provided Parking Spaces: 45 Spaces 1 NOTE: cjf
1 Infiltration Basin designed to treat • '� k
#47.73 d 85% impervious over of entire site.
I } ! f
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p � 3 NOTE: 1,/L q� Y .•
\ ao 47.37 Commercial
[� I a.,s jto( n,t I (ition alp uts shall �.
1 be directed into 6r►tllgr�tiah bl "n.
47.8' +411.25 4 T
4B.64 so
+ V Z
1 +47.2T
\ 1 +47.23 4
\ Q �Z Cl)
I z
47.46 +
47.47 ; Z V
SILT FENCE (TYP)) I i
\ TO BE INSTALLED AS NEEDED
A ` Infiltration Dotq 'table .� � R' h
3:1 SLOE Required Storogk: Qy ,7
3 Providod, StorogA . �,
47.5' 4. Bottam ElleVdAiln 6f. gL
14 25 yr SW', Storm S arage 1ldhat io�h: 47.5' MSL z - fJ
AUGER
BORING �1 NOTE : Q
46.0' 47.23 46.55 Infiltration 8os�in deal r1 �ased on treatment �J
AUGER 2 of 25 year stor withooIl discharge.
A o BORING 3 47.34 �-
\ PROPOSED INFILTRATION BASIN
BORICI cR1'3 200.00' c ,
I ru:
83a23'18'`N
48.06 S +46.56
W'rM Y K
Auger Boring Data Table (KUREB SOIL-S) 48.18
Boring #1 0- 8" Dark Grey Fine Granular Sand
8-18" Light Grey Fine Granular Sand
18-48" Orangish Tan Fine Granular Sand
= 50" Mottled, Wetness t �
�d f- r
�T'RI'l"I TE
Boring #2 0- a., Dark Grey Fine Granular Sand
8-18" Light Grey . Fine Granular Sand i l !�y 1 fl!r!(iT h te[
A 18-48•• Dark Brownish Orange Fine Granular Sand ! j I -T �-` A f j\ . ) ,At. #p
4 _50" Mottled r Sand -� _- _ -. �__�49 - kr v.,dFN•A fiA4ENT14
50 50" Tanish Wet Fine Granule - CROSS CTI�N ( C i° ,r �c E C E 1 V E '� '
i v a fA.T r "'_ t I5 'JuL
Boring #3 0-111, Light Grey Fine Granular Sand I t
11-23" White fine Granular Sand 8 ¢ 5 ��N16
k : 23-50" Brownish Orange Fine Granular Sand
50-72" Oran ish Tan Fine Granular Sand i --- -_ - I DFr N
_ g I; ( Ex�57� GRADE r rCrc415 "
fw _ 56" Mottled 7 -- --- ----� --------{--- f---- ----- -- ------ ------- -------;----- --- --- 47� PAOJY S{u ,e
INF`�TRATIONRATE' 6.0-20.01N/HR i __���.+ t�.r�_- . , _ __ f _ -l---_ _... _--} ---- __ _�_�_I
14' SHWTft50 BELOW EXISTING SURFACE 4
--..�_.__ _� _1 _ l I f;t 1
4 _ eorraM of aASIN a 4e.o' i $ i^
6 f
0 20 lilti', I (i1
.. >
i i I +� N
�5 _ , I l 45�
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FINAL DRAWING
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NOTRELEAM iS�fiUEr't' IN S r v ' v
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S Pa[tore rs.l STEEL OR WOOD POST
Ir ITA7 -WOVEN WIRE FENCING AS REG RD.
A (WE WTI r 6,
SILT FENCE FABRIC EROSION CONTROL NARRATIVE
(".' '
N.12 VQ GA. -
MIN.10 GA. TERMEDIATE b it FILL SLOPE
LINE w1Res WIRE �I ail
A. PROJECT DESCRIPTION
R This project is located in South Eastern Brunswick County appproximately two miles west
of Ocean Isle Beach along the southern right-of-way of Highway 179. The protect involves the
AM
MIN.COMPACTED FILL OVER SKIRT'
construction of a commercial building and associated parking.
` ♦ ♦ ♦�♦ ♦� , '6�6� WIREANC S 7 SKIRT WITH MIN i"LONGp�E��6CIv ♦ ♦i ♦ Q1Q v ♦�0�/♦SQ �yWIRE STAPLES IL 1T'O.C. B. SOILS AND TER. AIN IYi�I�f� I i
� N 'FCNi REPAW OF SILT FENCE FAILUFE S,
USE#57 WASHED STONEINLIEUOF Most of the j ro ect area to be disturbed is flat. The Soil SurvSX of Brunswick Countv
COMPACTED FILL. P .
indicates that the most prominent soil within the project boundaries is Kureb fine sand.
Kureb fine sand is an excessively drained soil and surface runoff is slow due to rapid
FRONT VIEW SIDE VIEW permeability.
i.Inetsl a*lances as shaven on drawing and a loo siow necessary to control suation Of adlacent areas. C. ADJACENT PROPERTY
2.When wood posts are wed,they shw be a minimum of J'In dlameler and 6'In length. Posts shall be creosole w
pentaidtlompanwlberad southern pit*. The project is bounded to the north by Highway 179. to the east by Holly Street, and to
7.When steel posts era wad,they shall be s'In hingm and be of the aelf fasten«angle tYPa. the west and south by undeveloped commercial property.
4.Wo wMe forcing,whM roWkad(sw Nall a 6).elel onn oontf M ASTM A116 for cl s g gah a izing. Fabric shal NOl
be a mMarnun of n wtle and have a nstannsn of 6 re wka with 12'Slay spacing. The tap and bottom arse,shag
be 10 gage,and keannedWe wk•s sew be 12-1n gauge. Wits,fabric shall be lessened to wood Posts With not less D. EROSION CONTROL MEASURES
than/0 staples 1 1/7 long.
S.Far lebric.hill be of nylon,polyester. propylene or ethylene yam with minimum strerglh of JO b.Ain, in., and a The primary land disturbing activities for this project are related to the construction of 3 `D =
IttY kit man 8S%filtering efficiency. Fabric shall tonal n elrevlotel WIIAore and NU"za
S.8 far fabric is cow want a strength of 50 bliln.In.or greater,Will the post spacing(S)does not exceed 6.woven the commercial building and associated parking. To prevent sediment losses to off-site areas
wine lMrcig a not required. an.ww,wo.en win,fencing in mithred,MW post spacing shall not exceed g. during and following construction, the following precautions shall be taken: silt fencing,
seasonal grassing. and construction entrance. 3,
STANDARD TEMPORARY SILT FENCE
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SG'MIN. E'I
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f 1 CONSTRUCTION SEQUENCE 03 a
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I. Obtain approval of Erosion Control Plan from NCDEHNR- Land Quality Section. E� �-
r' ' zit•oh.WIDTH OF yO cc
ExIfSTIND PROPOSED STREET, 2. Install silt fencing and construction entrance. H
ROADWAY -ABC-> I WHICHEVER IS Y
i t GREATER O ¢ w 12(` 3. Begin clearing and grubbing of disturbed area as shown on plans.
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4. Perform rough grading of drive and parking areas. z r1V U
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_i 5. Perform rough grading of building area and begin building construction. O
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6. Perform final grading and marl parking area. rZ
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PLAN VIEW O m
7. within thirty days following final grading activities, seed and mulch disturbed areas �
which will not be built upon. O
EXISTING ROADWA NEW CONSTRUCTION g. Maintain temporary erosion control measures until permanent ground cover is
35'MIN. 1S'MIN. established. w
t'
6'MIN' 12 MIN' 9. Obtain certificate of compliance through and on-site inspection by NCDEHNR Erosion
Control Engineer. Contact person is Mr. Dan Sams. 910-395-3900.
SECTION VIEW 10. Remove temporary erosion control measures and stabilize these areas immediately.
PemTanent erosion control measures shall remain.
CONSTRUCTION ENTRANCE DETAIL ccOfl
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SEEDING SCHEDULE EROSION CONTROL GENERAL NOTES W c
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1. All disturbed areas due to construction and any severely eroded areas shall be stabilized by the 1. All construction activities shall be performed in compliance with the Sedimentation O Z Ca
establishment of a permanent grass cover. The seed species shall be selected based on the type PolluQun Control Act of 1973. tJ
soil present, seasonal conditions and other considerations. As an alternative, the contractor F3
may use the methods and schedules shown below: however. It Is recommended that a specialist 2. All land disturbing activity is to be planned and conducted to limit exposure to the shortest Vl Z o
be consulted with attention given to site specific conditions. feasible time. Z
a. Cultivate area to a depth of 5 Inches 3. .V1 construction sites and severely eroded areas shall be stabilized by the establishment of a o
b. Apply agricultural lime at the rate of 4000 lbs. per acre permanent ground cover. �r o
c. Apply 10-20-20 commercial fertilizer at the rate of 500 lbs. per acre t
d. Sow grass seeds at the following rates: 4. As soon as all areas are permanently stabilized, all permanent measures have been Installed, Q Z
Kind Rate Per Acre and final approval is received by the Erosion Control Engineer, erosion control temporary
Common Bermuda Grass measures may be removed F+
unhulled 25lbs. E� —J a
hulled 12 lbs. 5. Over the life of the project, the Owner shall make periodic inspections to evaluate the N
Pensacola Bahiagrass 501bs. success in controlling erosion of soils to off-site areas. If areas are found where erosion is x
Korean Lespedeza 25 lbs. taking place. the Owner shall take the necessary measures to remedy the situation. m
Tall Fescue 301bs. Z Z
e. Mulch with straw at the rate of 3250 to 4350 lbs. per acre. 0 p
f. Anchor straw with asphalt emulsion tack coat applied at the rate of 300 gallons per O V fi
acre.
2. Where it Is not possible to establish a permanent grass cover in a reasonably short period of m
time due to seasonal considerations. a temporary grass cover shall be established. The
temporary cover shall include the planting of annual grasses or small grains such as rye grass, vi
however shall not be considered a permanent grass cover. Where the season or other O m
conditions are not suitable for growing a temporary erosion resistant cover, mulch may be
applied, however, mulch used alone shall be for the shortest time practical. A temporary or d
permanent vegetative cover shall be established as soon as conditions are favorable.
Topsoil shall be used over unfavorable soil conditions for successful establishment of vegetative
cover.
A Irrigate as necessary to optimize plant growth.
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FINAL DRAWING
NOT RELEASED FOR CONSTRUCTION
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96-0106