SW8160306_Approved Plans_20200707

LOCATION MAP
MATCHLINE THIS SHEET
NOT TO SCALE
PLANNED EROSION AND SEDIMENT CONTROL PRACTICES -
CE I. TEMPORARY GRAVEL CONSIRUC71ON ENTRANCE
Practice 6.06
SHALL BE INSTALLED AT THE ENTRANCES TO THE PROJECT
FROM AN EXISTING ROADWAY. DRAINAGE SHOULD BE AWAY FROM
THE ROAD AND EROSION WILL BE CONTROLLED W11H DOWNSTREAM
PRACTICES DURING WET WEATHER IT MAY BE NECESSARY 10 WASH
TRUCK TIRES AT THESE LOCATIONS.
2 LAND GRADING
Practice 6.02
GRADING SHOULD BE LIMITED TO AREAS AS SHOWN ON THE
PLANS CUT AND FILL SLOPES SHALL BE 3:1 OR FLATTER EXCEPT
WHERE SPECIFICALLY INDICATED. CARE SHALL BE TAKEN DURING
LAND GRADING ACTIVITIES NOT TO DAMAGE EXISTING TREES THAT
ARE IDENTIFIED AS 'TO BE PRESERVED'
SF J. SEDIMENT FENCE
Practice 6.62
SEDIMENT FENCING SHOULD BE INSTALLED AS SHOWN ON THE
PLAN, TO DELINEATE AND PROTECT WETLANDS AND SPECIFIED AREAS,
AND AROUND ANY TEMPORARY STOCKPILE AREAS AS NECESSARY TO
PREVENT ANY GRADED INTERIOR AREAS FROM ERODING ONTO ADJACENT
LANDS OR ROADWAY, OR INTO INLETS OR AS DIRECTED BY ENGINEER
OR NEW HANOVER COUNTY ER09ON CONTROL PERSONNEL
GC 4. GRASS -LINED CHANNELS
PRACTICE 6.30
ALL OVERFLOW SWALES TO BE CRADED TO DESIGN
CONFTGURA110N,LINED WITH CENTIPEDE SOD, TO COLLECT AND
CONVEY SIZE WATER AS SHOWN ON PLAN. AFTER FINAL PROJECT
STABILIZATION, SWALES TO BE RE -GRADED, CLEANED OF
SILTATION AND LINED WITH CENTIPEDE SOD TO ESTABLISH
ORIGINAL DESIGN CONTOURS FOR STORMWATER CONVEYANCE
5. CONSTRUCTION ROAD STABILIZATION
PRACTICE 6.80
UPON REACHING FINAL GRADE AND AFTER U71LI71ES HAVE
BEEN INSTALLED, ROADWAYIPARKING AREAS ARE TO BE
STABILIZED BY PLACING SUB -BASE AS SHOWN IN THE TYPICAL
STREET CROSS-SEC110N DETAIL ON THE PLAN, TO REDUCE
EROSION AND DUST DURING THE REMAINDER OF BUILDING
CONSTRUCTION.
SB 6. SEDIMENT BASIN
PRACTICE 6.61
THE SEDIMENT BASIN IS TO BE CONSTRUCTED FIRST (SEE
COIVSIRUC71ON SCHEDULE) AND IS THE PRIMARY PRACTICE TO
PREVENT SEDIMENT FROM LEAVING 114E SITE DETAILED DESIGN AND
SPILLWAY CONFIGURATIONS ARE SPECIFIED IN THE DETAIL SHEET.
SK 7. SKIMMER
PRACTICE 6.64
A SEDIMENTATION BASIN DEWAIERING CONTROL DEVICE THAT WITHDRAWS
WATER FROM THE BASINS WATER SURFACE, THUS REMOVING THE HIGHEST QUALITY
WATER FOR DELIVERY TO THE UNCONTROLLED ENVIRONMENT.
TD 8. TEMPORARY DIVERSIONS
PRACTICE 6.20
A TEMPORARY RIDGE OR EXCAVATED CHANNEL OR
COMBINATION RIDGE AND CHANNEL CONSTRUCTED ACROSS
SLOPING LAND ON A PRE- DETERMINED GRADE TO
PROTECT WORK AREAS FROM UPSLOPE RUNOFF AND TO
DIVERT SEDIMENT -LADEN WATER TO APPROPRIATE TRAPS
OR STABLE OUTLETS.
B F 9. BAFFLE
PRACTICE 6.65
A POROUR BARRIER INSTALLED INSIDE A TEMPORARY SEDIMENT TRAP,
SKIMMER BASIN OR SEDIMENT BASIN TO REDUCE THE VELOCITY AND
TURBULENCE OF WATER FLOWING THROUGH THE MEASURE AND TO FACILITATE
THE SETTLING OF SEDIMENT FROM WATER BEFORE DISCHARGE.
OP 10. OU71ET STABILIZATION
PRACTICE 6.41
RIPRAP APRONS WILL BE LOCATED AT THE DOWNSTREAM END OF
ALL DISCHARGE PIPES TO PREVENT SCOUR
TP 11. TREE PROTECTION
PRACTICE 6.05
RESTRICT ACCESS TO TPZ WITH TALL BRIGHT PROTECTIVE FENCING ON
AREAS INDICATED ON PLAN.
LEGEND
- -
EXISTING BOUNDARY
PHASE LINE
J r
/ ,
NO WETLANDS DETERMINA TION
--
EXISTING CULVERT
GE
CONSTRUCTION ENTRANCE
SF X X
SILT FENCE
PROPOSED CUL VER T
TD 1D-1 �► TEMPORARY DIVERSION
BF
BAFFLES
OP
OUTLET PROTECTION
NOTE WELL:
1. SOIL STABILIZATION TIMEFRAMES
SITE AREA DESCRIPTION
STABILIZATION
71MEFRAME EXCEPTIONS
PERIMETER DIKESSWALES
7 DAYS
NONE
DITCHES AND SLOPES
HIGH QUALITY ZONES HQW
7 DAYS
NONE
SLOPES STEEPER THAN 3.•1
7 DAYS
IF SLOPES ARE 10 FT OR LESS IN LENGTH
AND ARE ARE NOT STEEPER THAN 21,
14 DAYS ARE ALLOWED
SLOPES 3.'1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50 FT 1N LENGTH
ALL OTHER AREAS WITH SLOPES
14 DAIS
NONE, EXCEPT FOR PERIMETER AND
FLATTER THAN 4.1
HQW ZONES
2. DENUDED AREAS MUST BE STABILIZED WITHIN FIFTEEN (15) WORKING
DAYS OF CEASE OF ANY PHASE OF ACTIVITY. ALL SLOPES MUST BE
STABILIZED WITHIN TWENTY-ONE (21) CALENDAR DAYS OF CEASE OF ANY
PHASE OF ACTIVITY. THIS INCLUDES SLOPES, SWALES, CHANNELS AND
STOCKPILES
3. THIS PLAN TO BE UTILIZED AND REVIEWED ONLY IN CONJUNCIION
WITH THE WRITTEN NARRATIVE; WHICH IS AN INTEGRAL PART OF
THIS EROSION AND SEDIMENT CONTROL PLAN.
4. ALL SLOPES SHALL BE 3:1 OR FLATTER.
5. 2.42 ACRES OF WETLANDS ON SITE
6. BOUNDARY SURVEY PERFORMED BY SOUIHWIND SURVEYING
7. TOPOGRAPHIC SURVEY PERFORMED BY CAROLINA RESOURCES MAPPING WITH SUPPLEMENTARY
TOPOGRAPHIC INFORMATION PERFORMED BY BASELINE SURVEYING
8. ELEVATION DATUM. NAVD 88
9. ALL SWALES TO BE LINED WITH EXCELSIOR MATTING OR EQUAL
10. ALL EXISTING CULVERTS TO BE REMOVED EXCEPT FOR SHl-SH3.
It. LOTS 154-196 WILL ONLY BE FAR ROUGH GRADING NO FINAL ROAD DESIGN HAS BEEN
COMPLETED. ONCE DESIGN IS FINALIZED A REVISION TO THE EROSION CONTROL PERMIT
WILL BE SUBMITTED FOR APPROVAL
12 DEVELOPER/HOA ARE RESPONSIBLE FOR MAINTENANCE OF THE STORMWAIER SYSTEM.
MANASSAS DRiv
PROPERTY OWNER CERTIFICATION:
"I HEREBY CERTIFY THAT AM THE CURRENT OWNER OF THE PROPERTY AND THAT
UPON RECEIPT OF "AUTHORIZATION -TO-CONSTRUCT"ANY CLEARING, GRADING, CONSTRUCTION
OR DEVELOPMENT, WILL BE PERFORMED IN ACCORDANCE WITH THIS PLAN AND THAT THE
APPLICABLE ORDINANCES AND RULES OF NEW HANOVER COUNTY, THE STATE OF NORTH
CAROLINA AND THE FEDERAL GOVERNMENT AND ITS AGENCIES WHICH ARE HEREBY MADE
PART OF THIS PLAN. AS THE OWNER, I ACCEPT FULL RESPONSIBILITY FOR THE CONSTRUCTION
AND OPERATION AND MAINTENANCE OF THE PROPOSED FACILITIES. I WILL NOT ATTEMPT TO
TRANSFER THIS RESPONSIBILITY WITHOUT THE WRITTEN AUTHORIZATION OF NEW HANOVER COUNTY.
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
DESIGNER'S PLAN CERTIFICATION:
"I HEREBY CERTIFY THAT THIS PLAN HAS BEEN PREPARED IN ACCORDANCE WITH
THE LATEST NEW HANOVER COUNTY ORDINANCES AND STORMWATER DESIGN MANUAL."
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
REGISTRATION NUMBER:
CONSTRUCTION SCHEDULE -
I. OBTAIN APPROVAL OF PLAN AND ANY NECESSARY PERMITS AND HOLD
A PRE -CONSTRUCTION CONFERENCE PRIOR TO COMMENCING ANY WORK.
2. FLAG WORK LIMITS AND STAKE -OUT ROW, TEMPORARY DIVERSIONS AND SED. BASINS
FOR PRELIMINARY GRADING.
3 INSTALL GRAVEL CONSTRUCTION ENTRANCES
4. INSTALL SILT FENCING PRIOR TO ROUGH GRADING THE REMAINING
SITE AND ANY STOCKPILING OF MATERIAL AND TOPSOIL NECESSARY.
5 CONSTRUCT SWALES GRASS LINED CHANNELS, SEDIMENT BASINS
AND ANY OTHER SEDIMENT CONTROL PRACTICES SHOWN, PRIOR TO
ROUGH GRADING ROADWAYS AND SITE, S70CKPIUNG TOPSOIL AS NECESSARY.
6. UNDER CUT ROW FOR SWEETGUM DRIVE AND CANOPY WAY SO LOIS WILL DRAIN
TO ROW AND SWALES
7. ESTABLISH ROUGH ROAD GRADES
AND STABILIZE ROAD WITH TEMPORARY OR PERMANENT SEEDING
8. ALL EROSION AND SEDIMENT CONTROL PRACTICES ARE TO BE
INSPECTED WEEKLY AND AFTER ANY RAINFALL, AND REPAIRED AS
NECESSARY.
9. SUBMITTAL AND APPROVAL OF A FINAL DESIGN PLAN IS REQUIRED BEFORE ANY IMPERVIOUS
MATERIAL CAN BE INSTALLED.
MAINTENANCE PLAN -
(GENERAL NOTES, NOT ALL ITEMS ARE APPLICABLE TO THIS PROECT)
I. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED FOR STABILITY AND
OPERATION FOLLOW►NG EVERY RUNOFF -PRODUCING RAINFALL, BUT IN NO CASE, LESS
THAN ONCE EVERY WEEK AND WANING 24 HOURS OF EVERY 0.5' RAINFALL.
2. ALL POINTS OF EGRESS WILL HAVE CONSTRUCTION ENTRANCES THAT WILL PERIODICALLY
TOP -DRESS WITH AND ADDITIONAL 2 INCHES OF 14 STONE 10 MAINTAIN PROPER DEPTH
THEY WILL BE MAINTAINED IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING
THE SITE IMMEDIATELY REMOVE OBJECTIONABLE MATERIAL SPILLED, WASHED OR TRACKED
ONTO THE CONSTRUCTION ENTRANCE OR ROADWAYS
J. SEDIMENT WILL BE REMOVED FROM HARDWARE CLOTH AND GRAVEL INLET PROTECTION,
BLOCK AND GRAVEL INLET PROTECTION, ROCK DOUGHNUT INLET PROTECTION AND ROCK
PIPE INLET PROTECTION WHEN THE DESIGNED STORAGE CAPACITY HAS BEEN HALF FILLED
WITH SEDIMENT. ROCK W►LL BE CLEANED OR REPLACED WHEN THE SEDIMENT POOL NO
LONGER DRAINS AS DESIGNED. DEBRIS WILL BE REMOVED THE ROCK AND HARDWARE
CLOTH TO ALLOW PROPER DRAINAGE. SILT SACKS WILL BE EMPTIED ONCE A REEK AND
AFTER EVERY RAIN EVENT. SEDIMENT WILL BE REMOVED FROM AROUND WATTLES
BEAVER DAMS DANDY SACKS AND SOCKS ONCE A WEEK AND AFTER RAIN EVENT.
4. DIVERSION DITCHES WILL BE CLEANED OUT IMMEDIATELY TO REMOVE SEDIMENT OR
OBSTRUCTIONS FROM THE FLOW AREA. THE DIVERSION RIDGES WILL ALSO BE REPAIRED.
SWALES MUST BE TEMPORARILY STABILIZED WITHIN 21 CALENDAR DAYS OF CEASE OF
ANY PHASE OF ACTIVITY ASSOCIATED WITH A SWALE.
5 SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES HALF
FILLED. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A
BARRIER. STAKES MUST BE STEEL. STAKE SPACING WILL BE 6 FEET MAY, WITH THE USE
OF EXTRA STRENGTH FABRIC, IMTHOUT WIRE BACKING STAKE SPACING WILL BE 8 FEET
MAX, WHEN STANDARD STRENGTH FABRIC AND WIRE BACKING ARE USED. IF ROCK
FILTERS ARE DESIGNED AT LOW POINTS IN THE SEDIMENT FENCE THE ROCK WILL BE
REPAIRED OR REPLACED IF IT BECOMES HALF FULL OF SEDIMENT, NO LONGER DRAINS AS
DESIGNED OR IS DAMAGED.
6. SEDIMENT WILL BE REMOVED FROM SEDIMENT TRAPS WHEN THE DESIGNED STORAGE
CAPACITY HAS BEEN HALF FILLED WITH SEDIMENT. 114E ROCK WILL BE CLEANED OR
REPLACED WHEN THE SEDIMENT POOL NO LONGER DRAINS OR WHEN THE ROCK IS
DISLODGED. BAFFLES WILL BE REPAIRED OR REPLACED IF THE COLLAPSE, TEAR,
DECOMPOSE OR BECOME INEFFEC71VE THEY WILL BE REPLACED PROMPTLY. SEDIMENT
WILL BE REMOVED WHEN DEPOSITS REACH HALF THE HEIGHT OF THE THE 1ST BAFFLE.
7. SEDIMENT WILL BE REMOVED FROM THE SEDIMENT BASIN WHEN THE DESIGN STORAGE
CAPACITY HAS BEEN HALF FILLED WIIH SEDIMENT. ROCK WILL BE CLEANED OR REPLACED
WHEN THE SEDIMENT POOL NO LONGER DRAINS OR THE ROCK IS DISLODGED. BAFFLES
WILL BE REPAIRED OR REPLACED IF THEY COLLAPSE, TEAR, DECOMPOSE, OR BECOME
INEFFECTIVE THEY WILL BE REPLACED PROMPTLY. SEDIMENT WILL BE REMOVED FROM
BAFFLES WHEN DEPOSITS REACH HALF THE HEIGHT OF THE THE 1ST BAFFLE. FLOATING
SKIMMERS WILL BE INSPECTED WEEKLY AND WILL BE KEPT CLEAN.
8. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY AND MULCHED
ACCORDING TO THE SPECIFICATIONS IN THE VEOETAINE PLAN TO MAINTAIN A VIGOROUS
DENSE VEGETATIVE COVER, ALL SLOPES WILL BE STABILIZED WITHIN 21 CALENDAR DAYS
ALL OTHER AREAS WILL BE STABILIZED WITH 15 WORKING DAYS
9• FLOCCULANTS WILL BE USED TO ADDRESS TURBIDITY ISSUES THE PUMPS, TANKS, HOSES
AND INFECTION SYSTEMS WILL BE CHECKED FOR PROBLEMS OR TURBID DISCHARGES DAILY.
10. ALL SCM'S IMPACTED BY SMMENTA17ON AND EROSION CONTROL DURING THE
CONSTRUCTION PHASE SHALL BE CLEANED OUT AND CONVERTED TO ITS APPROVED
DESIGN STATE.
VEGETATIVE PLAN -
1. PERMANENT VEGETATION TO BE ESTABLISHED IN ACCORDANCE WITH
'NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL, SECTION 6.11, LATEST VERSION
DRIPLINE
PROTECTIV
BARRIETi
G TREE
3' MIN. STAKE
-HEIGHT ABOVE
GRADE
y
NOTE_•
TREES TO BE SAVED WWLL BE CLEARLY MARKED PRIOR TO CONSTRUCTION AND A
PROTECTIVE BARRIER IS TO BE INSTALLED AT THE DRIPLINE.
DRIP LINE - THE AREA OF SOIL DIRECTLY BENEATH THE TREE EXTENDING OUT TO
THE TIPS OF THE OUTERMOST BRANCHES.
io
SD 15-08
NOT TO SCALE
APPROVED
N" CMIDI MW EWIRONMENT&
MANAGrG11iE T GOMMSION
brvz- ?/7/00 0 '5w$ Gov&
MAR j
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDEN
P.O. BOX 4041
WLMINGTON, NC 28406
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DA TE.• 12-17-15
HORZ. SCALE. 1' = 200'
VERT. SCALE. N/A
DRAWN BY- RL W
CHECKED BY.• HSR
PROJECT NO.: 06-0134
EC1Sw EC12
Sheet No. Of

MATCH LNE SEE SHEET EC4
SILT FENCE W1 WfRE BACKING
(STAKE SPACING- 3 FT ON CENTER)
TEMP EARTHEN BERM
2 FEET MIN TOP AREA
10 3o SETTLEMENT
20 FT MIN WIDTH
GENERAL NOTES FOR TEMP. PLUG DETAIL
1. BUILD RIDGE HIGHER THAN DESIGN AND COMPACT WITH
KNEELS OF O*STRUCT7ON EQUIPMENT. COMPACTED RIDGE
MUST BE AT OR ABOVE DESIGN GRADE AT ALL POINTS.
2, LEAVE SUFFICIENT AREA TO PFRMIT CLEAN OUT AND REGARDING.
3. CONSTRUCT SILT FENCT ON DOWNSTREAM SIDE OF BERM.
4. MIN. PLUG LE14GTH OF 25' TO PREVENT BLOWOUT.
5. imgEDIATELY AVERT WATER AWAY FROM PLUGS TO APPROPRIATE
DE'NCES TO PpcVENT PLUG BLOWOUT
6. EX?S71NG DITCH TO BE FILLED IMMEDIATELY
N TS
LEGEND
--- EXISTING BOUNDARY
'7-- NO WETLANDS DETERMINATION
EXISTING CULVERT
0® CONSTRUCTION ENTRANCE
SF X x SILT FENCE
PROPOSED CULVERT
Tp TEMPORARY DIVERSION
BAFFLES
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LICENSE / C-2710
ENGINEERING
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COMMERCIAL / RESIDEN
P.O. BOX 4041
t49LMINGTON, NC 28406
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VERT: SCALE. • N/A
DRAWN BY- RL W
CHECKED B Y HSR
PROJECT NO.: 06-0134
50 25 fJ 50 100 150
SCALE 1N FEET. 1'= 50'
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SF' X X SILT FENCE
PROPOSED CULVERT
TOD PD-11--f TEMPORARY DIVERSION
BAFFLES
OUTLET PROTECRZ
Cmo*SD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDEN
P.O. BOX 4041
WiLMINGTON, NC 28406
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PROJECT NO.: 06-01J4
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50 25 0 50 100 150
SCALE IN FEET: 1 "= 50'
EC3Sw EC�2
Sheet
No. Of

DISTURBANCE SUMMA R Y
1 " = 1,000,
1,000 500 0 1,000 2, 000 3,000
SCALE IN FEET.- 1 "= 1,000'
rUCOLlU MUHU
6" MINIMUM
THICKNESS
2"-3" COARSE
AGGREGA TE
LEGEND
—
EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINATION
--
EXISTING CULVERT
-E
CONSTRUCTION ENTRANCE
DX X
SILT FENCE
PROPOSED CULVERT
TD-1 TEMPORARY DIVERSION
Dom—
BAFFLES
DMOUTLET
PROTECTION
COMPACTED FILL OR
GRAVEL, EXTENSION
OF FABRIC AND WIRE
INTO THE TRENCH
FIL TER
FABRIC
BACKFILL
MINIMUM 8"
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NOTE IM
SEE NARRATIVE
FOR MORE DETAIL.
ISOMETRIC VIEW
EXTENSION Of
FABRIC AND HIRE
INTO THE TRENCH
EX. CULVERTS TO BE REMOVED
STEEL POST
MATCH LINE SEE SHEET EC2
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LICENSE # C-2710
ENGINEERING
LAND PLANNING
, MERCIAL / RESIDEN RAL
P.O. BOX 4041
WILM/NGTON, NC 28406
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DATE.• 12-17-15
HORZ. SCALE. I" = 100'
VERT. SCALE.- N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
50 25 0 50 100 150
SCALE IN FEET.• 1 "= 50'
MATCH LINE SEE SHEET EC6
seat No. Of EC12
o

LEGEND MATCH LINE SEE _WEET EC3
EXISTING BOUNDARY / f/ /� ' l i ►n 1 I 1
PHASE LINE / i ' �' 11'20 j
��� NO WETLANDS DETERMINATION QE 134 LF 24" BLE WALL HOPE
DOU
%' /% ADS N-12 OR EQUIV.
l i STOCKPILE LOCA710N
EXISTING CULVERT i / >ci TG P22CB0 Pv
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CE CONSTRUCTION ENTRANCE i/ S T / INV. OUT 18.50 (E - 24") A IP
x �.Y 10 j
SF X X SILT FENCE
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PROPOSED CULVERT
( j
TD FID-1 --►^- TEMPORARY DIVERSION/ _
i j 97
1143 LF 24 DOUBLE WALL HDPE 2 j 2 a
BF -X--- X BAFFLES / �� I ADS N-12 OR EQUIV. s 98 j
OP OUTLET PROTECTION P2-CB3 20 j 99
' J ' TG = 23.00
' INV. IN 17.70 (N - 24") DE: �
' INV. IN 17.70 (W - 24") I I 181 LF 30" DOUBLE WALL HDPE I
L,
an �' -' S %�% t INV. OUT 17.70 (S - 30") _. ADS N-12 OR EQUIV.
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x
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32 OU ALL'T T = .40
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P2-JB7 h i I' ' N
1 71 aE. 69 RIM 23.50 '� j 1�
S NLE WALL HDPE INV. IN 17.60 (E _ 24 -),
INV. IN 16.60 (N 36) I.
INV. OUT 16.60 (SW - 48")
I x
133 LF 24 DOUBLE WALL HDPE (Y
STOCKPILE LOCA71ON I IfI',
� IP ;.
PH2-OUTFALL 2 j 68
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t:
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( S, N I � j 'INV. OUT 18.00 (W - 24")' ''
/ 20N25 26
HDPE D.
168 LF 24 DOUBLE WALL ' E
_
25 ADS N-12 OR EQUIV. ' 5
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66
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ADS N-12 OR EQUIV. _ — —
1 ( �S 8 -�
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INSTALL ,KITE MATTING s '
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FOR BANK STABIUZA77ON +' l i SEDIMENT BASIN 5,1 t
�(JEREVER EXISTING DITCH ( t � �� - - - p ` ` 13' /
WH r r r �' li
HAS BEEN DISTURBED �,1 � �Ij y � � r ' (SEE SHEET ECBA FOR DETAIL�'� S ; � � (3) 203 LF 36" DOUBLE WALL HDPE k PH2 oU1FALt 3 � 25 1,
SEE DETAIL SHEET EC9 ADS -12 E
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A N OR QUIV. P2 CB14 x
64 - IP
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INSTALL SF ALONG TOP OF PIPE
INV. OUT 18.00 (W - 24")
r r
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fig II _ i1 I / S ® 102 LF 24 DOUBLE WALL HDPE N
EX. CULVERT TO BE REMOVED r r r - - - - - -� ADS N-12 OR EQUIV.
K7LANDS r
INSTALL SF ALONG 70P OF PIPE
INSTALL SF ALONG TOP OF PIPET ACOE APPROVAL PENDING P2-JB15
j r
j 63
O -
- r ,USACE SECTION 404 WETLANDS WERE DEUNEA1m. RIM = 23.00�
.S 1 r �% \ _
�' EX CULVERT TO BE REMOVED S 8Y MR. DAVID SgBE1TA, W11H SOUTHERN + - r r \ / - -- -
--'' - 59 INV IN 18 00 (S 24") 1" ' '`
z INV. OUT 18.00 (N - 24") INSTALL JU7E MATTING ENVIRONMENTAL GROUP,INC ON 11-16-16 - - - — N -
' FOR BANK STABILIZA71ON 25
-
WHEREVER EXIS7ING DITCH - SAND VERIFlED BY MR. KYLE DAHL, USACE PROJECT MANAGER- - - r - / 58�I
HAS BEEN DISTURBED I — 3
4 ON THAT SAME DATE.
i SEE DETAIL SHEET EC9 20 FT I
f
- - - r r u r r o
\
'~I I, f UIlU1Y EASEMENT ' � �
� of j 62
_ o
>EMP wEnANDs IMPACT PART of 143 LF 24" DOUBLE WALL HDPE
_.l\� 1 ,•. \. `... r - ,,, ,,• r r r �� r ,, ACOE APPROVAL - - r _ ', ADS N-12 OR EQUIV.
r
Iis
—
24 / % ...___........_-........—_/
1
INSTALL JUTE MATTINGis
FOR BANK STABIUZA710N ! 13 III j t
WHEREVER EXISTING DITCH t - r r r - - ` I '
'` 5T
HAS BEEN DISTURBED ; I SWALE 1 TO CONNECT j h i / ' I
SEE DETAIL SHEET EC9
N� INI V OUTO 0
I ® / IO S85 UNIiL UPSTREAM AREA r r - r - - r r 16, - ) —
1 N is
OF SWALE 1 IS STABIL21ED
j S I IP ' �> ' N nIEId SWALE IS 1 IS TO BE CONNECTED TO S r r - - N � I � WF"ETSHRUB C o —� �-
L aosnNG DITCH TO THE sou>H wEsr. _ 45 f7? PRlVq - CURT 23 �4_ � s ,� �,.
POND 3A \ \ INSTALL JU1E MATTING' . S / S®; - - S 2 Row i , f
FOR BANK STA61UZ47ION 4
SEDIMENT BASIN 2
WHEREVER EXISTING DITCH
(SEE SHEET EC8B FOR DETAI HAS BEEN DISTURBED MATCH LINE SEE SHEET EC7
/ \ SEE DETAIL SHEET EC9 SWALE 1 U71LITY EASEMENT
-r
POND 3A OU7FALL POND 2 OU7FALL
/� \ (2) 24' HDPE (2) 30" HDPE
�If \. INV EL = 18.7 INV. EL 18.7
F.E.S W/ 15 CY a II RIP RAP F.E.S. W/ 4 CY aII RIP RAP 50 25 0 50 100 150
VINSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF 7HE FLOW DO NOT DISTURB ANY PART OF 7HE FLOW
SCALE IN FEET. 1
LINE IN BASE OF EMS17NG CREEK BED LINE IN BASE OF EXIS7ING CREEK BED "= 50'
MATCH LINE SEE SHEET EC6
25 IP
P2-CB12TG = 22.80
INV. OUT 18.50 (S - 24")
133 LF 24" DOUBLE WALL HDPEADS N-12 OR EQUIV. STOCKP►LE LOCA7ION
10 20� ti
10 25®P2-C810TG = 23.50INV. IN 17.70 (E - 24') 13J LF 24' DOUBLE WALL HDPE
INV. IN 17.70(N-24") ADS N-12 OR EQUIV.INV. OUT17.70 (S - 30")IPc20 � P2-CB13TG = 22.90of INV. OUT 18.50 (W - 24")81 LF 30" DOUBLE WALL HDPEADS N-12 OR EQUIV. 25EAF24Vq23
Cmao4SD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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DATE: 12-17-15
HORZ. SCALE. I" = 100'
VERT. SCALE: N/A
DRAWN BY- RL W
CHECKED BY.- HSR
PROJECT NO.: 06-0134
C&w EC12
Sheet No. O

w
4' o 000
i o 000000
0REFERENCE EROSION CONTROL
00000 CALCULATIONS FOR SPECIFIC
" 0000 DIMENSIONS.
OUTLET PIPE DIAMETER 0 0 0 0 0
(Do)
d50 = REFERENCE EROSION CONTROL CALCULATIONS
dMAX = REFERENCE EROSION CONTROL CALCULATIONS
La = REFERENCE EROSION CONTROL CALCULATIONS
MIN. APRON THICKNESS = 4.5"
NOTE. • GEOTEX NONWOVEN FILTER FABRIC TO
BE PLACED UNDER ALL STONE
OUTLET PROTECTION.
RIP RAP
DIMENSIONS
STRUCTURE
L X W X D
CLASS
QUAN77TY
CULVERT 1
19, X 14, X 1'
ll
10 CY
CUL VERT 2
19' X 14' X 1'
1I
10 CY
CULVERT 3
18' X 12' X 1'
ll
8 CY
CULVERT 4
15' X 8' X 1'
ll
15 CY
TEMP CULVERT 5
9' X 6' X 1'
11
12 CY
CULVERT SH1
9' X 6' X 1'
ll
2 CY
CULVERT SH2
9' X 6' X 1'
ll
2 CY
CULVERT SH3
30' X 14' X 1.2'
ll
19 CY
OUTFALL 1
19' X 12' X 1'
ll
9 CY
OUTFALL 2
9' X 6' X 1'
ll
2 CY
POND 1 OUTFALL
9' X 15' X 1'
11
5 CY
SB 5 CONNECTION
11' X 15' X 1'
ll
6 CY
PIPE
PH2 OUTFALL 1
19' X 12' X 1'
ll
9 CY
PH2 OUTFALL 2
19' X 12' X 1'
ll
9 CY
PH2 OUTFALL 3
9' X 6' X 1'
fl
2 CY
PH2 OUTFALL 4
9' X 6' X 1'
ll
2 CY
PH2 OUTFALL 5
9' X 6' X 1'
11
2 CY
PH2 OUTFALL 6
20' X 20' X 1'
11
15 CY
POND 2 OUTFALL
12' X 8' X 1'
ll
4 CY
PH3 - 3B-1
9' X 6' X 1'
ll
2 CY
PH3 - 3B-2
9' X 6' X 1'
ll
2 CY
PH3 - 3B-3
9' X 6' X 1'
ll
2 CY
PH3 - 3B- 4
9' X 6' X 1'
ll
2 CY
PH3 - 3B-6
9' X 6' X 1'
ll
2 CY
PH3 - 3B-9
9' X 6' X 1'
11
2 CY
PH3 - 3B-10
9' X 6' X 1'
11
2 CY
PH3 - 3B-11
9' X 6' X 1'
I1
2 CY
PH3 - 313-12A
9' X 6' X 1'
11
2 CY
POND 3 OUTFALL
30' X 14' X 1' I
11
15 CY
WEIR CREST EL. 25.
MANHOLE ACCESS COVER � OPEN AREA
=
INLETS 1
PROPOSED
01 -� STORM PIPE
2 FT SUMP
SIDE VIEW
SOLID COVER WITH MANHOLE ACCESS
OPEN AREA ON ALL
FOUR SIDES
WEIR CREST EL = 25.0
INLETS 1
PROPOSED
STORM PIPE
ISOMETRIC VIEW
4 FT x 4 FT PRECAST CONCRETE BOX OR EQUIVALENT
TO BE USED FOR EQUALIZATION CULVERT
WEIR TYPE AREA INLET
N. T. S.
50 25 0 50 100 150
SCALE IN FEET: 1 "= 50'
Mimi
AM t. p
j 74 LF 15" DOUBLE WALL HDPE
.�...awADS N-12 OR EQUIV. i.
€ _ an
31 LF 15" DOUBLE WALL HDPE 139 LF 24" DOUBLE WALL H
PH3-CB6
DPE
_
1€ I ADS N-12 OR EQUIV. ADS N 12 OR EQUIV. 1 6
RIM 26.80 r p' E.
000, LEGEND
-- EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINATION
- EXISTING CULVERT
CE CONSTRUCTION ENTRANCE
SF X — X SILT FENCE
PROPOSED CUL VERT
TDFD-1 --i TEMPORARY DIVERSION
BAFFLES
OP OUTLET PROTECTION
INV. IN 24.00 (SW - 15 )
_ PH3-CB8
€ ' OUT 23.50 (NE - 15 PH3-CB5
' TG = 32.30
29.30 (E - 15")
RIM 22.60 .
IP ` ` " — _ 1 INV. OUT 19.00 (N - 24")
1p
Se<;��1� n 2 Lot 29
�35
r ,
Bottle
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t _
STOCKPILE ocn
PH3-CB7
RIM 32.30 / rr nonl
O�{ INV. IN 29.10 (W - 15")4
( Lot 28 c�, f` IN V. OUT 25.00 (NE - 15") 1'
! �: c;uon 2 ///o` ! ; STOCKPI� LOCATION 55
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DATE: 12-17-15
HORZ. SCALE. 1' = 100'
VERT. SCALE. N/A
DRAWN BY- RL W
CHECKED BY.- HSR
PROJECT NO.: 06-0134
EC6 EC12
Sheet No. Of

K
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CL
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C-3
TYPICAL WEDGE
CURBING
7 FT
6" HIGHBACK CURB
2-08-=�
2.0830 — T 1- —
0.1' LOCAL DEPRESSION
— _
STD. GRATE & HOOD
BOLT BOXES TOGETHER AND CUT
OUT OPENING BETWEEN THE TWO BOXES
OR PRECAST.
`� Q -A
6--- 6.
,
SECTION VIEW
A - TO BE SIZED PER INLET PIPE COMING INTO BOX
BOXES TO MEET NCDOT STD 840.02 REQUIREMENTS.
TO BE USED AT INLET CBI, CB2 AND CB5
DOUBLE INLET
NOT TO SCALE
t S7EEL POST
'1 1
(114 MESH OPENINGS)
NCINCDOT 15 OR 15
WASHED I. \� '�A�fJA�'e✓Ji'OJ�`'p 1JpJ'p�{ �.
��•I��frOJ i'� �Ol�`JiJ'O�l 000100 `�^•,C
v °Jeo+'+oo JJeo Jeo
16,
minumuuunuuunu
STM POST
DROP PJ?07EC ���►
PRACTICE 6.51
NOT TO SCALE
LEGEND
EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINA TION
---
EXISTING CULVERT
CE
CONSTRUCTION ENTRANCE
SF X( X<
SILT FENCE
PROPOSED CULVERT
TD F-1 --►
TEMPORARY DIVERSION
BF _-
BAFFLES
pp
OUTLET PROTECTION
MATCH LINE SEE SHEET EC5
_ 23 '
\ . - _ _
/ G � .. s _._-'_ 2� S►NEETSHRUB
X wETLANDs _ 45 FT PR/ COURT
VATZ- Row
E PUMPSTAnON' AREA TO DRAIN TO ACC APPROVAL P0;0WW _ '�}~ ` w
CAN Y,�WAY / C8 3 y
e. \ 25
v �v
\ � 21.81E 0`�
\\ \\ \ \ s T srocxPlLE LOCATION
Q \ \; 1 24
24 CY CLASS 11 RIP RAP
— x
12" 12"
SLOPE AWAY FOR
SUPERELEVA71ON
6 1x
LOCAL DEPRESSION
AT FLUME
MODIFIED VALLEY
CURBING
NOT TO SCALE
i s ! -7—
i —
j
I �+ 1 D — X
eA �, f
' Ex CULVERT TO BE REMovED- ��. \ 2N, 44 ! SX s—
— CE
1 45 .! —
46 —
! —
I ! 48 I
lix
! � 4 , 1
? ; CIA 51
b,
23 _ _ —
I 1i CANOPY wA y
45 FT PR/VA jF
R w
_ o _
If DOUBLE INLETS
EX CULVERT TO BE REMOVED rG = 221
I
C84
/ E !
24' DOU WALL JJJ DOUBLE INLE1517
111I I ,� 120RE IV. 24 ' E= 9.9 — i
I20 Fr 36 24
24 D.E 142 LF 24' DOUBLE WALL H CO
35 ADS N-12 EQUIV.
39 1 i 25 34 20 °� _
III
0.E d N
/ _ 103 3s DOUBLE WALL HDPE ! 33
C ° f + ADS1 N-12 OR EQUIV. ' cN 25 ' ' n1620o LF 36` Ob1BE WALL HOPE
--- ADS N-12 EQUIV �
� 11 r15,
1
J°I N I
POND 1 OUTFACE , ,� 0 40
(3) 24- HOPE II II } 1
INV. EL = 18.8
F.E.S. W/ 2 CY a 11 RIP RAP J f t ' 11� jj �� �� 1 12
INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF IHE FLOW
LINE IN BASE OF EXISTING CREEK BED I I , ; + 1 2 5
SWALE 8 IM(�l if
�i I71
ll�'I
ICI
J Ifni 'III
4
cV ! C62
DOUBLE INLETS
z rt
41 LF 48' DOUBLE WALL HOPE - IE = 19.9
ADS N-12 OR EQUIV. I JBfA RIM -19.05
RIM = 23.5
IE = 18.7 "-
XIC
' PIPE IE = 18.5 RIM23.5
OU>FALL 1 IE - 19.6 141 LF 24' DOUBLE WALL HOPE i I P
9 CY CLASS 11 RIP RAP
\
12 OR EQUIV. ,
I; I SEE DETAIL SHEET EC6 j
B 8 500 COY CLASS RIP RAP
f SEE EET DETAIL SH
B oun=ALL 2 30
j NET BASIN 1 2 CY CL II RIP RAP
1 SEE DETAIL SHEET EC8
SHEET EC6
I ...._ , , �. DETAIL ---
i , \ �., SSE'
, I I
t 1 E = 19.3 i
,
PIPE I
l _
y _
\ t
INSTALL JUTE MAT1iNG
FOR BANK STABILIZAnON
WHEREVER DUSTING DITCH
HAS BEEN DISTURBED
SEE DETAIL SHEET EC9 1 /
— f
1 24
� 1 1
1 1 F 24 DOUBLE WALL HOPE 26 I
1 1 I 20 FT ADS N-12 OR EQUIV. \
' D.E. C81 25 x
1 21 1 i. 1 DOUBLE JNNLETS
• \
>O 1 j 1 1 25-IE=19.!jrI /
w.
i
T GUM DRIB iP 2� 1 1 \ ` N
SIN Fj PRIVAE RDW U, 1 1 1 \ N
_ 5 0
4 �- 9
FLOW LINE IE = 18.3
PIPE IE = 17.3 -
7 CY CLASS It RIP RAP
i
CULVERT
(2) - 85 LF 54- CLASS M RCPS INSTALL JUIE MATTING },
FOR BANK STABIUZAnON
r- WHEREVER EX1S71NG DITCH
HAS BEEN DISIURSO 1
FLOW LINE IE = 18.0 \t
PIPE IE = 17.0 A
10 CY CLASS II RIP RAP O 2
r
154 �; �: --
f
x
EXISTING DITCH TO BE RE -GRADED AND LINED
WITH EXCELSIOR MATTING /
f
< /
~ % 1 1 INSTALL JUTE MATTING
1
FOR BANK STABIUZAnON •'"- "=�`'`�f " "
1 5 , 1 WHEREVER DOSHNG DlH - --:
CE HAS BEEN DISIURBED
4 1 SEE DETAIL SHEET EC9
- .- -� FLOW LINE IE = 19.0 t
PIPE IE = 18.0
_ 6 CY CLASS 11 RIP RAP
CULVERT 2 '
85 LF 'CLASS 1►► RCP's
r t BURIED 1 FT
�." _ - _ . _ _ . _. - -` _ .. -. FLOW LINE IE 1 18.7
i
i PIPE IE = 17.71 '
10 CY CLASS II RIP RAP, r
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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DATE.- 11-3-16
HORZ. SCALE.- I" = 100'
VERT. SCALE.- N/A
DRA WN BY MRB
CHECKED BY- HSR
PROJECT NO.: 06-0134
Sheet NO.EC7 oEC12

10 FT
j!
157.5 FT
10. SIDESLOPES
1 �1 SIDE
,--
�i �
i BORING B9
f I ECS REPORT DATED 8-13-15
j • EX GROUND ELEV = 23.5
MINIMUMWl \ SHWT DEPTH = 42.0'
-'J SHWT ELEV. = 20.0
T. I OF BERII I III
EMERGENCY SPILLWAY
EL = 22.0
33 CY CL 11 RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
OUTLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
DOUBLE WALL
E 21 I I� I ADS N-12 OR EQUIALEN '
1� Kv 1//00
INV EL = 18.8,
IF.E.S. W/ 6 CY CL 9 RIPRAP
BASIN BOTTOM = 14.0
14 CY CLASS 0 RIP RAP
SEE DETAC 9CET EC6
L=14.40 ' ALL BUILDING ROOF DRAINS MUST BE DIRECTED INTO THE STORM WATER SWALES
INTO THE STREET/PARKING LOT.
\` R=11.00 PORTABLE PUMP TO BE USED TO DRAIN POND IN CASE OF EMERGENCY. PUMP TO BE
PLACED ON TOP OF BERM WITH SCREEN ATTACHED TO HOSE INLET AND COVERED KITH STONE.
HOSE OUTLET TO DRAIN ACROSS STABLE UPLAND AREA SUFFICIENT TO RESTRAIN EROSION.
(a `� J. POND SIDESLOPES TO BE PERMANENTLY VEGETATIVELY STABILIZED.
4. BASIN TO BE RECORDED IN A DRAINAGE EASEMENT.
PPE f = 1&5
FOREBAY APRON- \ `� FOREBAY BOTTOM = 14.0
150 CY CL ll RIP RAP
SEE DETAIL THIS SHEET
PIPE IE = 19.3
12 CY CL 11 RIP RAP
j SEE DETAIL SHEET EC6
19p 5 FT
TEMPORARY POOL ELEVATION = 20.3'
SURFACE AREA 0 ELEV. 20.3 = 50,696 SF
STORAGE 0 ELEV. 20.3 = 38, 906 CF
WET BASIN 1
1 " = 20'
TORMWATER COLLECTION SYSTEM NOTE TO CONTRACTORS:
)WNER/DEVELOPER HAS OPTION TO INSTALL EITHER FLUMES OR PIPED
'OLLECTION SYSTEM. SEE SHEET EC8 FOR FLUME COLLECTION OPTION.
KIES,
1. TEMPORARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UN71L SITE IS PERMANENTLY STABILIZED PER NCDENR/LQS
SEDIMENTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
2. GRADE WILL BE 20:1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
10.1. PP IS THE CENTER OF THE 10.1 SHELF.
J. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES
4. (3) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = 8.0' SKIMMER WITH 26' ORIFICE DIAMETER.
��...II..I.!la:�
WSEL = 19.5
SB
8' PVC SCREW PLUG
8' ORIFICE ASSEMBLY
8' CROSS
SKIMMER CONNEC71ON
TO BE CAPPED ONCE
SKIMMER IS REMOVED
12'
12'
1 /
8' CAP TO REMAIN UNTIL SKIMMER
IS REMOVED. THEN DRILL 3.5' HOLE IN CAP
POND BOTTOM
ELEV= 14
EL= 20.8
TOP OF BOX AT
ACK OF BOX EL= 21.5
6.0FTWEIR(2FTEAx3)
4' EL= 20.3
INV = 19.5
INV= 19.0
2 FT SUMP
FOR CLEANOUT
0
CL B RIP RAP W/ GE07EX
NONWOVEN FILTER FABRIC
(TO SURROUND EN71RE
24' HOPE OUTLET STRUCTURE)
OUTLET PIPE
12- 09Nc :.
OR GROUT <
67BASE EL = 15.5
SECTION v1Ew
WET BASIN 1
OUTLET STRUCTURE DETAILS
NOT TO SCALE
23.0
TOP OF BERM ,- -
10 FT MINIMUM �DTN
TOP OF BERM
I
20 10 0 20 40 60
SCALE IN FEET. 1 "= 20'
FABRICATED GRATE TOP
BARS,
,'""/4NIZED, OR
ALENT
ALL SLOPES
3.1 MAXIMUM
(T)"PICAL AT ALL STORM OUIFALLS TO POND)
VARIES 16.5'
FOREBAY VOLUME
OF REQUIRED
WSEL = 19.5 STORAGE, TYPICAL
op
RIP RAP 1.5 min.
31min. BOTTOM = 14 DITCH
OUTLET
NON WOVEN FILTER FABRIC UNDER RIP RAP PS 7E PLANS
No TERRA7EX N04 OR EQUIVALENT
FOREBA Y SECTION D E TA I L
NOT TO SCALE
WETLANDS PLANTINGS:
THE FOLLOWING SPECIES OF WETLANDS WGETA71ON ARE SUITABLE FOR
PLANTING ALONG THE 10.1 VEGETATED SHELF -
PLANTS SU17ED FOR SHELF THAT'S UNDERWATER
- SAGITTARIA LANCIFOUA (BULL TONGUE)
- SAGITTARIA LARFOUA (DUCK POTATO)
- SAURURUS CERNUUS (UZARDTAIL)
PLANTS SUITED FOR SHELF 7HAT'S ABOVE WATER
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX TENERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE TURTLEHEAD)
SF OF 10:1 SHELF UNDER WATER = 3,573 SF / 200 = 17.9 X 50 = 895 PLANTS REQUIRED
895 / 3 = 298 PLANTS OF EACH OF THE THREE LISTED ABOVE MUST BE PLANTED
SF OF I0:1 SHELF ABOVE WATER = 3,730 SF / 200 = 18.7 X 50 = 935 PLANTS REQUIRED
935 / 3 = 312 PLANTS OF EACH OF THE THREE UUTED ABOVE MUST BE PLANTED
IF ONE OR MORE OF THE SUGGESTED SPECIES IS UNAVAILABLE, APPROPRIATE
WETLANDS WGETA7ION COMMON TO THE COASTAL NORTH CAROLINA REGION
MAY BE SUBSTITUTED. SEE CH 9 OF STATE STORMWAIER BMP MANUAL
FOR UST OF OTHER RECOMMENDED WEAANDS PLANTS.
C
46.0 FT
TOP OF
EMBANKMENT
40
_ELEV V. = 22.0
ELEVATION = 23.0
TOP OF RIP
CLASS ll RIPRAP 1.5 FT DEEP
ON WOVEN FILTER FABRIC
TERRA7EX N04 OR EQUIVALENT
EMERGENCY SPILL WA Y
FRONT
VIEW -
BASIN 1
NOT TO SCALE
15 0'
IF PLAN
4-0' 4-0' 4-0'
SEE DETAIL
o THIS SHEET
FOR
TRASH RACK
2 FT WEIR CUT 2 FT WEIR
8' ORIFICE ASSEMBLY
0-
8- CAP W/3.5' HOLE \� °O
FT WEIR CUT
KNOCK OUT INTERIOR WALLS TO
ELEV. 19.0 SO 774AT BOXES
FUNCTION AS ONE STRUCTURE
(ALL SEAMS TO BE GROUTED)
BOX PLAN VIEW
WET BASIN 1
OUTLET STRUCTURE DETAILS
NOT TO SCALE
NOTE COLLAR TO BE POURED AFTER 6'
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
5'.
s. s.
s.
d
MIN
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
VARIES 10' 6' 31'
16'
EMBANKMENT TOP= 23.0 (SETTLED), = 23.25 (CONSTRUCTED)
! EMERGENCY SPILLWAY = 220
�a TOP OF GRATE = 20.8
STATE STORAGE WEIR CUT = 20.3 STATE STORAGE = 38906 CF
NORMAL WSEL= 19.5 (MIDDLE OF 10,1 SHELF) ';�7
A(3)) 28 24 HOPE BOTTOM OF 10:1 SHELF EL= 19.0
= 1&8
AN77-SEEP =
COLLAR BOTTOM Ei 17.4
BOTTOM SWAT STRUCTURE EL= 15.5
i
A1y11_SEEP SEDIMENT CLEAWOUT EL. = 15.0
COLLAR, IE= 19.0/�/� = 14.
SEE DETAIL
10'
5'
WIDE
10:1 SHELF
VARIES 25'
EMBANKMENT SECTION
NOT TO SCALE
CSD
ENGINEERING
LICENSE j C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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VERT. SCALE. • N/A
DRA WN BY. MRB
CHECKED BY- HSR
PROJECT NO.: 06-0134
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24' HOPE
Ir - in n
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.ilYc yYc � aiL ,t�
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4
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EMERGENCY SPILLWAY
EL = 22.0
60 CY CL II RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=9.75'
R=5.00'
__-----OUTLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NON40WN GEOTECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=7.84'
R=5.00'
(3) 33 LF 36' DOUBLE WALL HOPE
ANII-SEEP COLLAR
SEE DETAIL THIS SHEET
POND 2 OUTFALL
IE = 18.7
NOTES-
1. TEMPORARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UNTIL SITE IS PERMANENTLY STABILIZED PER NCDENR/LQS
SEDIMENTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
2. GRADE WILL BE 12.1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
6:1. PP IS THE CENTER OF THE 6.1 SHELF.
J. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES
4. (3) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = 8.0' SKIMMER WITH 4.2' ORIFICE DIAMETER. TOP OF BOX AT
BACK OF BOX FI =
FAIRCLOTH
SKIMMER
WSEL = 19.5
SB
0
3
1�
POND B077OM
ELEV= 15
6' PVC SCREW PLUG
6' ORIFICE ASSEMBLY
6' CROSS
SKIMMER CONNECTION
TO BE CAPPED ONCE
SKIMMER IS REMOVED
12'
12'
6' CAP TO REMAIN UNTIL SKIMMER
IS REMOVED.
EL= 20.6
4 7 FT WEIR
4" EL= 20.1
CL B RIP RAP W/ GEOTEX
NONWIOVEN FILTER FABRIC
1/ (TO SURROUND ENTIRE
(3) 36" HOPE OUTLET STRUCTURE)
OUTLET PIPE
INV = 19.5 -
INV = 19.0
2 FT SUMP
FOR CLEANOUT
OQ GROUT
618ASE EL = 15.5
SECTION V►EW
WET BASIN 2A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
FABRICATED GRATE TOP
4"
o.v Vrt�nu MJ 7GMDL I
PLAN VIEW
WELDED BARS,
GALVANIZED, OR
EQUIVALENT
I (3) 200 LF 36' HDPE
yL
yLl
yL
i
rt=�.w
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i
N'tLUtU FAdhRAItU IKAS71
RACK W/SQUARE OPENINGS
UARE OPENINGS < 6'
6' -1
mmmmmmm■
ommommo1
1 " = 30'
" HDPE P'HDPE 6" HDPE
io
4-0'
4-0'
4-0'
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
0' CL
.5 FT WEIR CUT 2.0 FT WEIR CUT
0
6.0' ORIFICE ASSEMBLY
BOX PLAN VIEW
WET BASIN 2A
OUTLET STRUCTURE DETAILS
48' HOPE
' 25 FT EASEMENT FOR FUTURE CONNEC71
L=23.56'
R--15.00' L=23.56'
R=15.00'
L=23 56' I
R=15.00' P=23.56'=15.00'
_-
J. 1 MnA,MUM
(TYPICAL AT ALL STORM OUIFALLS TO PON
10 FT VARIES
FOREBAY VOLUME
OF REQUIRED
STORAGE, TYPICAL
O P pIPE
;EL = 19.5 �
'AP 1.5 min. lb- S,1
A5 SEDIMENT CLEANOUT
3min. BOTTOM =
B ELEV. = SCE
OUTLET
NON WOVEN FILTER FABRIC UNDER RIP RAP
AS ON PLANS
vo
FOREBAY 28-1,2,3.• B = 15, SCE = 16
FOREBAY 2A-1 B = 16, SCE = 17
FOREBA Y SECTION
DE TA I L
52 FT TOP OF
EMBANKMENT
T ELEVATION = 23.0
yyON WOVEN FILTER FABRIC
CLASS 11 RIPRAP 1.5 FT DEEP IERRATEX N04 OR EQUAL
EMERGENCY SPILL WA Y
FRONT VIEW - BASIN 2A
NOT TO SCALE
' L=LJ.DO
R=15.00'
L=23.56'
R=15.00'
tt
1
1
R=20.00'
-L=2356'
R=15.00'
[24- HDPE
f
TE: COLLAR TO BE POURED AFTER
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
2325 (CONSTRUCTED)
EMBANKMENT TOP= 23.0 (SETTLED), =
! f EMERGENCY SPILLWAY = 22.0
TOP' OF GRATE = 20.5
STATE STORAGE WEIR CUT = 20.1 STATE STORAGE = 103,146 CF
NORMAL WSEL= 19.5 (MIDDLE OF 6.1 SHELF) �7
IE(OUT) = 18.7 (3) 36 HOPE BOT70M OF 6.1 SHELF EL= 19.0
6.
ANT) -SEEP COLLAR, BOTTOM EL= 17.3
IE= 19. /�/�/\ BOTTOM SWM STRUCTURE EL= 15.5
ANTI -SEEP //\ SEDIMENT CLEANOUT EL - 16.0
COLLAR, 6 FT WIDE BOTTOM EL= 15.0
.................................................
SEE DETAIL 6:1 SHELF
14
VARIES I 33'
EMBANKMENT SECTION
NOT TO SCALE
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DATE:' 5-10-17
HORZ. SCALE. AS NOTED
VERT. SCALE.' N/A
DRAWN BY.- RLW
CHECKED BY: HSR
PROJECT NO.: 06-0134
Sheet aEC8AO��q12

i
PERMANENT POOL ELEVATION = 19.5.
SURFACE AREA 0 M 19.5 (MAIN BAY 3A,38 ONLY) = 54,102 SF
SURFACE AREA 0 ELEV 19.5 (WHOLE POND 3A,38) = 69,648 SF
TEMPORARY POOL ELEVATION = 20.5 p
SURFACE AREA 0 QEV 20.5 (3A,3B) = 8Z096 SF
STORAGE 0 ELEV. 20.5 (3A,3B)= 76,952 CF -- --
-
-, -BEAN POND EXPANSION
30 15 0 30 60 90
SCALE IN FEET: 1 "= 30'
DUSTING POND SADESLOPE
. - - -�- I/-
15" HDPE SIDE$Lgc'ES
18-1
k lE - 17.5
i ;- ; r
POND 3B
BASIN BOTTOM = 15
_...
_ -----
_ ..w...
_... .._.
. BEGIN POND DFANSION! _ _.... DOSING POND SIDER013E
ALL SLOPES
3:1 MAXIMUM
(TYPICAL AT
ALL STORM OUTFALLS TO POND)
10 FT
VARIES
FOREBAY VOLUME
OF REWIRED
STORAG& TYPICAL
pE
OP
WSa = 19.5 1
T RIP RAP 1.5min_- 4,1
SEDIMENT CLEANOUT
3'min. BOTTOM = B M, = SCE
-�---
OUTLET
PROIEON
NON WOVEN FILTER FABRIC UNDER RIP RAP
AS ON FLA1yS
FOREBAY 3B-1: 8 = 15, SCE = 16
FORERAY 38-2-.i: 8 = 16, SCE = 17
FOREBA Y SECTION
DETAIL
NOT TO SCALE
1. TEMPORARY WINNER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UNTIL SITE IS PERMANENTLY STABILIZED PER NCOENR,40S
SEDNENTAAON AND EROSION CONTROL PERMIT. SEE SKIMMER DETAUS FOR INSTALLATION
Z GRADE WILL BE 12 1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
6: 1. PP IS THE CENTER OF THE 6:1 SHELF.
J. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES.
4. (2) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALEIVT HAND -BUILT.
5 SKIMMER = 8.0' SKIMMER WITH 4.2' ORIFICE DIAMETER. TOP OF BOX AT
FAIRCLOTH
SKIMMER
3
1
POND BOTTOM
ELEN= 15
6' PVC SCREW PLUG
6' ORIFICE ASSEMBLY
6' CROSS
SKIMMER CONNEC17ON
TO BE CAPPED ONCE
SKIMMER IS REMOVED
r2'
12'
6' CAP TO REMAIN UN71L SKINNER
IS REMOVED. THEN DRILL 4' HOLE IN CAP
EL= 21.0
NOTE: COLLAR TO BE POURED AFTER 6'
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
6 FT WEIR
4' EL= 20.5._...__ -- /
/
171NV = 19.5
INV = 19.0
2 FT SLUMP
FOR CLEANOUT
5'
• e
e
a
p v c
in
M!N
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
CL B RIP RAP W/ GEOTEX
NONWOVEN FILTER FABRIC
(10 SURROUND EN77RE
(2) 24, HOPE OUTLET STRUCTURE)
OUTLET PIPE
Off GROUT . • •a
61
1BASE EL = 15.5
T
SECTION_ STEW
WET BA SIN 3A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
FABRICATED GRATE TOP
v.v tu�rrnc naacnro�r
FT
YYCLVCL 0/i S,
GALVANIZED, OR
EQUIVALENT
PN
WET BASIN 3A & 3B
1 " = 30'
73.4 FT TOP OF
- - EMBANKMENT
ELEVATION = 23.0
65 FT
�`
ELEU _ 216
TOP OF
\\/\/ '\�/\ /�/�• / ON WOVEN FILTER FABRIC
CLASS 9 RIPRAP 1.5 FT DEEP TERRA TEX N04 OR EQUAL
EMERGENCY SPILL WA Y
FRONT VIEW -- BASIN 3A
NOT TO SCALE
r
1
PONDtEXPANS
FOREBAY 38--1 /
QREBA Y BOTTOM = 15 /
EL Izo
JO CY a N RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GEOTECH
�-- FTL TER FABRIC UNDER RIPRAP
(2) 239 LF 24" HOPE
LAY FLA T AT ELEV. 17.0
4' HDPE 4" HDPE
4-0'
4-0'
SEE DETAIL
SEE DETAIL
THIS SHEET
THIS SHEET
FOR
FOR
TRASH RACK
TRASH RACK
lJ
6' --1
( 10'- 0" %.T O FT WEIR CUT
(6.0 FT TOTAL)
6.O' ORIFICE ASSEMBLY
GATE PLAN VIEW WITH 4' HOLE
BOX PLAN VIEW
WET BASIN 3A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
40
to
r 24" HOPE
IE = 18.0
f
/
�18' HOPE ,
�\ bE = 19.0
' POND 3A '
-a = 17.0
10 CY CL !! RPRAP 1.5 FT DEEP BASIN BOTTOM = 15
PLACE NONWOVEN GEOTECH
ROER FABRIC UNDER RIPRAP
f'
AND 3 OU7FALL
OUTLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GEOTECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL ()HIS SHEET)
ANTI -SEEP COLLAR
SEE DETAIL THIS SHEET
(2) 20 LF 24' DOUBLE WALL HDPE
ENER(ENCY SPILLWAY
1 ,� EL=21.6
54 cY CL P RIPRAP 1.5 Fr DEEP
' PLACE NONWOVEN GE07ECH
RL71W FABRIC UNDER RFRAP
- SEE DETAIL (THIS SHEET)
PERMANE YT POOL ELEVATON 19.5
i SURFACE AREA 0 ELEV 19.5 (MAIN BAY 3A,3B ONLY) = 54,102 SF
/ SURFACE AREA 0 ELEV. 195 (WriOLE POND 3A,38) = 69,648 SF
MWPORARY POOL ELEV4710N = 20.5
SURFACE AREA 0 ELEV. 205 3A,3B) = 82,098 SF -
STORAGE 0 ElEV. 20.5 (,A,3B)= 76,952 CF
VARIES 10' 13 15'
I 16'
k EMBANKMENT 70P= 23.0 (9TTIfD�, = 2325(CONSTRUCTED)= 2325(CONSTRUCTEOI
EMERGENCY SPILLWAY = 2L6
6: TOP OF GRATE = 21.0
ST47E STORAQUI WEIR CUT = 20.5 STATE STORAGE = 76,952 CF
NORVAL OUSEL= 19.5 (MIDDLE OF 6A SHELF) Q
1E(OLlr) = J& 8 (2) 20 LF 24" HOPE �� BOTTOM OF 6.1 SHELF a= 19.0
�\ AN71-SEEP COLLAR BOTTOM a= 17.3
BOT M M SWAM STRUCTURE EL= 15,5
AN71-SEET' ` 577JOMENr C1fi1NOUr EL - 16.0
COLLAR, 6 F7 WIDE ��//� ELF= 15.0
SEE DETAIL 6:1 SHELF��,
14
VARIES 33'
EMBANKMENT SECTION
NOT TC SCALE
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WLMINGTON, NC 28406
[phone]
CA
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025483
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DATE.- 9-15-17
HORZ. SCALE- AS NOTED
VERT. SCALE: N/A
DRAWN BY.' RL W
CHECKED B Y.' HSR
PROJECT NO.: 06-0134
Sheet NEC88 a�EC12

VARIES
TOP OF
VARIES ENIBANKAaT
CLASS I RIPRAP 1.5 FT DEEP —WOVEN FILTER FABRIC
NOTE SEE TABLE ON SHEET ECff FOR SPILLWAY EEVA71ONS
EMERGENCY SPI LL WA Y
FRONT VIEW
NOT TO SCALE
12"
_��
mi
w W
w `d
W w W �• W •d w W w W
W w w w W
y�t
RECP , JUTE MAT INSTALLA T/ON DETAIL
NOT TO SCALE
1. PREPARE SOIL WORE INSTALLING ROLLED
EROSION CONTROL PRODUCTS (RECPs),
INCLUDING ANY NECESSARY APPLICATION
APPLICATION OF LGN & FER7U M, AND SEED
2 BEGIN AT 1HE TOP OF THE SLOPE BY
ANCHORING THE RECPs IN A S' DEEP BY
B' WIDE TRENCH WITH APPROXWAIELY 12'
OF RECPS EXIENOED BEM THE' UP --SLOPE
PORTION OF THE 1RENCH. ANCHOR 7HE RECPs
WITH A ROW OF STAPLES/STAKES
APPROXIMATELY 12' APART IN IHE BOTTOM OF
THE IREIVCH. BACKRLL AND COACT THE
TRENCH ALTER STAPLING. APPLY SEED TO THE
COMPACIM SOIL AND FOLD THE REMAINING 12'
POR170M OF RECPs BACK OVER' THE SEED AND
COMPACTED SOIL SECURE RECPs OVER
CaWACIM SOIL NIH A ROW OF STAPLES/
STAKES SPACED APPROXIMAMLY 12' APART
ACROSS THE NDIH OF THE RECPs
J. ROIL THE RECPs (A) DOWN OR (B)
HORIZONTALLY ACROSS THE SLOPE RECPs WILE.
UNROLL NIH APPROPRIATE SIDE AGAINST THE
SOIL SURFACE ALL RECPs JUST BE SECURELY
FASTENED TO SOIL BY PLACING STAPLES/STAKES
IN APPROPRIATE LOCA77ONS AS SHOWN IN THE
STAPLE PATIERdN GLIDE.
4. THE 6M OF PARALLEL REPS MUST BE STAPLED
WITH APPROXIMATELY 2'-5' OVERLAP
DEPENDING ON THE RECPs TYPE
5. CONSECUlDf RECPs SPACED DOWN THE SLOPE
MUST BE END OVER END (SHINGLE ST)LE)
WITH AN APPROXIMAIE 3' OVERLAP. STAPLE
THROUGH OWRAPPEO AREA, APPROXIMATELY
12' APART ACROSS ENTIRE RECPs ND1H.
lIdnTE
IN LOOSE SOIL CONDITKkNS NE USE OF STAPLE
OR STAKE LENGINS GREATER THAN 6' MAY BE
NECESSARY 70 PROPERLY SECURE THE RECP'S
200 100 0 200 400 600
SCALE IN FEET. 1 "-- 200'
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LICENSE / C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDEN
P.D. BOX 4041
WILMINGTON, NC 28406
[phone]
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HORZ. SCALE.' 1' = 20'
VERT. SCALE: N/A
DRAWN BY RLW
CHECKED BY.• HSR
PROJECT NO.: 06-0134

SWEET GUM 9RIVE
10 CY
(3) 355 LF 36' HDPE
LAY FLAT AT M.. 16.5
r I
r I
� 11
e �
1 '
1
MATCHLINE 8--9 -�
I l
PERMANENT POOL ELEVATION = 19.5
SURFACE AREA A m.. 19.5 (MAIN BAY 24, 2B, 2C ONLY) = 127,658 SF I
SURFACE AREA 0 M. 19.5 (WHOLE POND 2A, 219, 2C) = 165,421 SF
TEMPORARY POOL EIEVARON = 20.1
SURFACE AREA 0 ELEV. 20.1 ( 2B,2C) = 177,494 SF
STORAGE ® ELEV. 20.1 (2A,2B,2C)-- 104146 CF
WET BASIN 2C
1 " = 30'
IE = 16.5 -' t'VIYU zo
10 CY a B RIP RAP SEE SHEET EC8A
SHORT LEAF WAY
---7T1
I
(3) 355 LF 36' HDPE
LAY FLAT AT DIV. 16.5
(72 I
I
I
WSEL = 19.5
RIP RAP 1.51min. 6L
ALL SLOPES
& i MAXIMUM
(TYPICAL AT ALL STUN OUTFALLS TO POND)
10 FT VARIES
FOREBAY FLUME
OF REQUIRED
T STORAGE, TYPICAL OP
3mh BOTTOM = B
ao` NON NVMV FILTER FABRIC UNDER RIP RAP
�a FOREBAY 2C-1 do 2C-2 B = 15, SCE = 16.0
ELEV. = SCE
OUTLET
PROTECRON
AS ON PLANS
FOREBA Y SECTION DETAIL
NOT TO SCALE
POND 2B 1
667'
CAU
J
(3) 710 LF 36' HDPE
LAY FLAT 16.5
WANKMENT TOP= 2J.0 (aMLED),
= 2125 (CONSTRUCTED)
EMERGENCY SPILLWAY = 220
(STATE STQRAGE)j WEIR CUT = 20.1
NORMAL WSEL= 115 (MIDDLE OF 6.1 SHELF
BOTTOM OF 6.1 SHELF EL= 19.0
SEDIMENT aEANOUT EL
OAT7➢H/ 0- to A ....:..................
EMBANKMENT SECTION POND 2C
NOT TO SCALE
CSD
ENGINEERING
LICENSE j C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILM/NGTON, NC 28406
[phone]
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HORZ SCALE, • AS NOTED
VERT. SCALE: N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
EC1 0sw EC12
Sheet No. Of

COIR FIBER BAFFLE MATERIAL PROPERTY REQUIREMENTS
MATERIAL
100% COCONUT FIBER
THICKNESS
0.30 IN MIN.
TENSILE STRENGTH (WET)
900 X 680 LB/FT MIN
ELONGATION (*FT)
69% X 34X MAX
FLOW VELOCITY
10-12 FT/SEC
WEIGHT
20 oz/SY (680 G/M"2) MIN
MINIMUM WIDTH
6.5 FT
OPEN AREA
50% MAX
STEEL POST
/
EARTHEN EMBANKMENT, �_ //.
OUTLET, CLASS II
STEEL POST SHOULD BE APPROX 1-3/8' WIDE MEASURED PARALLEL
TO FENCE AND HAVE A MIN. WEIGHT OF 1.25 LB/LINEAR FT AND BE
EQUIPPED WITH AN ANCHOR PLATE WITH MINIMUM AREA OF 14.0 INA2.
STEEL POST SHOULD BE INSTALLED AT MAX 4 FT SPACING AND
DRIVEN INTO GROUND MIN. OF 2 FT.
r ZONE
OF SURFACE AREA
BAFFLE (TYPICAL)
FIRST CHAMBER
25% OF SURFACE AREA
SECOND CHAMBER
25X OF SURFACE AREA
OUTLET ZONE
25% OF SURFACE AREA
BF TEMPORARY BAFFLES
Practice 6.65
NOT TO SCALE
M= 3
VARIES n�VgRIES n= 0.03�
��3-1
\ \\/\\��\/\\\ \\ \
LINED WITH REINFORCING MATTING AND SEED
PER SPECIFICATIONS OR SOD.
SWALES 1-2
EC 3:1
GRASSED CHANNEL
N. T. S
WATER LEVEL
8.5"
END VIE W
BASIN
ORIFICE SIZED DRILLED IN CAP
1
2.6"
2
3.6
3
2.9"
4
2.3
5
3.6"
6
4.2"
SK CUSTOM SKIMMER DETAIL
Practice 6.64
NOT TO SCALE
2' 14.0'
3
- - - - - 7 1
_11:
iii-iii-till-1 11 l- 18" ' 1 1-
11
1= 1.
�11
1 -
3 ' 1-
b= 5'
SEE EROSION CONTROL CALCULATIONS FOR
TD VELOCITY CALCULATIONS.
TEMPORARY DIVERSION DETAIL
Practice 6.20
NOT TO SCALE
8" HOPE CAP
w/ VENT HOLES
1/2" WOODEN DOWEL (RETAINING FLOAT)
2" REPURPOSED STYROFOAM
FLOAT 18" SINGLE WALL CORRIGATED HOPE
HOPE TEE
8" HDPE CAP
(SEE CHART FOR ORIFICE SIZE OF HOLED DRILLED IN CAP)
FROM T VIEW
- BAFFLES TO BE INSTALLED PER TEMPORARY BAFFLES DETAIL TOP OF
TOP OF EMBANKMENT EL _ BERM
EMERGENCY SPILLWAY EL AM
INSTALL POLE
NTH CLEAN OUT
DEPTH MARKED.
CANNOT BE TOP
OF POLE
BOTTOM EL.
4 FT
CLASS B STONE
(4' X 4' X 1' MIN)
TEMPORARY SEDIMENT BASIN SUMMARY:
SKIMMER
(SEE DETAIL THIS SHEET)
1 FT
FLEXIBLE RUBBER COUPLING
PLAN VIEW
SEE DENR STANDARDS & SPECS.
FOR COMPLETE DESIGN CRITERIA & MAINTENANCE
91
AREA
ELEVATIONS
VOLUME
SKIMMER
CLEANOUT
DEPTH (FT)
FROM BOTTOM
SEDIMENT
BASIN /
SURFACE
AREA (SF)
TOP OF EMERGENCY BASIN OUTFALL
BERM SPILLWAY BOTTOM INV EL
REQUIRED PROVIDED
(CF) (CF)
PIPE ORIFICE
SIZE RADIUS
*1
45,405
23
22.0
19.5
18.8
24,930
38,906
8.0
26
1.0
2
69648
23
21.8
19.5
19.0
42,858
76,952
8.0
3.6
1.0
3
22,504
26
25
22.5
224
16,344
47,680
8.0
2.9
1.0
4
17,304
29
28
26
25.9
6,786
31,476
8.0
23
1.0
**5
118,262
24
22.5
15
19.4
57,474
73,791
8.0
3.6
1.0
6
56,286
23
22
19.5
19.4
25,938
103,444
8.0
4.2
1.0
*SEE EC8 FOR BASIN DETAIL AND SKIMMER CONNECTION TO OUTLET BOX. BASIN 1 DOESN'T Ul1LJZE THIS EMBANKMENT CROSS SECTION
**SEE EC8A FOR BASIN DETAIL AND SKIMMER CONNECTION TO OUTLET BOX. BASIN 5 DOESN'T UTILIZE THIS EMBANKMENT CROSS SECTION
SB TEMPORARY SEDIMENT BASIN
EMBANKMENT CROSS SECTION
NOT TO SCALE
Construction Road Stabilization
Specification / 6.80 - Construction Specifications
I. Clear roadbed and parking areas of all vegetation, roots and other
objectionable material.
2. Ensure that road construction follows the natural contours of the terrain if
it is possible.
J. Locate parking areas on naturally flat areas if they are available. Keep
grades sufficient for drainage but generally not more than 2 to 3%
4. Provide surface drainage, and divert excess runoff to stable areas by using
water bars or turnouts (References: Runoff Control Measures).
5. Keep cuts and Oils at 2:1 or flatter for safety and stability and to
facilitate establishment of vegetation and maintenance.
6. Spread a 6-inch course of 'ABC' crushed stone evenly over the full width of
the road and smooth to avoid depressions.
7. Where seepage areas or seasonally wet areas must be crossed, install
subsurface drains or geotextile fabric cloth before placing the crushed stone
(Practice 6.81, Subsurface Drain).
8. Vegetate all roadside ditches, cuts fills and other disturbed areas or
otherwise appropriately stabilize as soon as grading is complete (References: -
Surface Stabilization).
9. Provide appropriate sediment control measures to prevent off -site
sedimentation.
Maintenance
Inspect construction roads and parking areas periodically for condition of
surface. Topdress with new gravel as needed. Check road ditches and other
seeded areas for erosion and sedimentation after runoff -producing rains.
Maintain all vegetation in a healthy, vigorous condition. Sediment -producing
areas should be treated immediately.
CE
Temporary Gravel Construction EntrancelExit
Specification / 6.06 - Construction Specifications
I. Clear the entrance and exit area of all vegetation, roots and other
objectionable material and properly grade it.
2. Place the gravel to the specific grade and dimensions shown on the plans and
smooth it.
3. Provide drainage to carry water to a sediment trap or other suitable outlet.
4. Use geotextie fabrics because they improve stability of the foundation in
locations subject to seepage or high water table.
Maintenance
Maintain the gravel pad in a condition to prevent mud or sediment from leaving
the construction site. This may require periodic topdressing with 2-inch stone.
After each rainfall, inspect any structure used to trap sediment and dean it
out as necessary. Immediately remove all objectionable materials spilled,
washed, or tracked onto public roadways. )
Temporary Seeding
Specification / 6.10 - Specifications
Complete grading before preparing seedbeds and install all necessary erosion
control practices such as dikes waterways and basins. Minimize steep slopes
because they make seedbed preparation difficult and increase the erosion hazard.
If soils become compacted during grading, loosen them to a depth of 6-8 inches
using a ripper, harrow, or chisel plow.
Seedbed Preparation
Good seedbed preparation is essential to successful plant establishment. A good
seedbed is well -pulverized, loose and uniform. Where hydroseeding methods are
used, the surface may be left with a more irregular surface of large clods and
stones.
Liming - Apply lime according to soil test recommendations. If the pH (acidity)
of the soil is not known, an application of ground agricultural limestone at the
rate of 1 to 1 1/2 tons/acre on coarse -textured soils and 2-3 tons/acres on
fine -textured soils is usually sufficient. Apply limestone uniformly and
incorporate into the top 4-6 inches of soil. Soils with a pH of 6 or higher
need not be limed.
Fertilizer- Base application rates on soil tests. When these are not possible,
apply a 10-10-10 grade fertilizer at 700-1,000 lb./acre. Both fertilizer and
lime should be incorporated into the top 4-6 inches of soil. if a hydraulic
seeder is used, do not mix seed and fertilizer more than 30 minutes before
application.
Surface roughening- If recent tillage operations hate resulted in a loose
surface, additional roughening may not be required except to break up large
clods. If rainfall causes the surface to become sealed or crusted, loosen it
just prior to seeding by disking, raking, harrowing, or other suitable methods,
Groove or furrow slopes steeper than J. I on the contour before seeding (Practice
6.03, Surface Roughening).
Plant Selection
Select an appropriate species or species mixture from Table 6.10a, for seeding
in late winter and early spring, Table 6.10b for summer, and Table 6.10c for
fall.
Seeding
Evenly apply seed using a cyclone seeder (broadcast), drill, cultipac ker seeder,
or hydroseeder. Use seeding rates given in Table 6.10a-6.10c. Broadcast seeding
and hyroseeding are appropriate for steep slopes where equipment cannot be
driven. Hand broadcasting is not recommended because of the difficulty in
achieving a uniform distribution. Small grains should be planted no more than 1
inch deep, and grasses and legumes no more than 1/2 inch. Broadcast seed must
be covered by raking or chain dragging, and then lightly firmed with a roller or
culfipacker. Hydroseeded mixtures should include a wood fiber (cellulose) mulch.
Mulching
The use of appropriate mulch will help ensure establishment under normal
conditions and is essential to seeding success under harsh site condition
(Practice 6.14, Mulching). Harsh site conditions include.
-seeding in fall for winter cover (wood fiber mulches are not considered
adequate for this use),
-slopes steeper than J. 1,
-excessively hot or dry weather,
-adverse soils(shallow, rocky, or high in day or sand), and
-areas receiving concentrated flow.
If the area to be mulched is subject to concentrated waterflow, as in channels,
anchor mulch with netting (Practice 6.14, Mulching).
r I
�
M= 3
VqMEs n= 0.022
r3
_
I
\//\//\\1\\\\/\ j\ j \/����
\////\//�\//\\\//\//\//\//\//\//\\
LINED WITH REINFORCING MATTING AND SEED
PER SPECIFICATIONS OR SOD.
EX SWALES 1-3
NEW SWALES 3-4
GC 3:1
GRASSED CHANNEL
N. T. S
Sediment Fence (Silt Fence)
Specification 6.62 - Construction Specifications
MATERIALS
i.Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon,
polyester, or polyethyfene yam, which is certified by the manufacturer or
supplier as conforming to the requirements shown in Table 6.62b. Synthetic
filter fabric should contain ultraviolet ray inhibitors and stabilizers to
provide a minimum of 6 months of expected usable construction life at a
temperature range of 0 to 120 F.
2Ensure that posts for sediment fences are 1.33 Ib/Iinear ft steel with a
minimum length of 4 ft. Make sure that steel post have projects to facilitate
fastening the fabric
3.For reinforcement of standard strength filter fabric, use wire fence with a
minimum 14 gauge and a maximum mesh spacing of 6 inches.
Table 6.62b
Specifications For Sediment Fence Fabric
Physical Property Requirements
Fitierkng Efficiency - 85% (min)
Tensile Strength at Standard Strength- 30 Ib/lin in (min)
Extra Strength- 50 Ib/lin in (mm)
Slurry Flow Rate - 0.3 gal/sq ft/min (min)
CONSTRUCTION
1.Construct the sediment barrier of standard strength or extra strength
synthetic filter fabrics.
ZEnsure that the height of the sediment fence does not exceed 18 inches above
the ground surface. (Higher fences may impound volumes of water sufficient to
cause failure of the structure.)
3.Construct the filter fabric from a continuous roll cut to the length of the
barrier to avoid joints. When joints are necessary, securely fasten the filter
cloth only at a support post with overlap to the next post.
4.&Wort standard strength filter fabric by wire mesh fastened securely to the
up slope side of the posts using heavy duty wire staples at least 1 inch long,
or tie wires. Extend the wire mesh support to the bottom of the trench.
5. Men a wire mesh support fence is used, space posts a maximum of 8 ft apart.
Support posts should be driven securely into the ground to a minimum of 18
inches.
6.Extra strength titer fabric with 6ft post spacing does not require wire mesh
support fence. Staple or wire the filter fabric directly to posts.
7Excovote a trench approximately 4 inches wide and 8 inches deep along the
proposed line of posts and upslope from the barrier (figure 6.62a).
8.8adkh7l the trench with compacted soil or gravel placed over the Ill ter
fabric.
9.Do not attach filter fabric to existing trees.
Maintenance
inspect sediment fences at least once a week and after each rainfall. Make any
required repairs immediately.
Should the fabric of a sediment fence collapse, tear, decompose or become
ineffective, replace it promptly. Replace burlap every 60 days.
Remove sediment deposits as necessary to provide adequate storage volume for th
next rain and to reduce pressure on the fence. Take care to avoid undermining
the fence during cleanout.
Remove all fencing materials and unstable sediment deposits and bring the area
to grade and stabilize it after the contributing drainage area has been properly
stabilized.
SK
Skimmer Sediment Basin
Specification 6.64.7 - Construction Specifications
1. Clear grub, and strip the rea under the embankment of all ve etation and
root' chat Remove all su acg sal contai in? hi h gm rots of �r�anic mut err
an sto le o dispose of rt�roperiy. F7ou allgobiec ienable ma eriol tot e
desi_gnat disposal area. rrlac temporary sedimenT control measures below
basin as need
2. Ensure that fill material for the bankment is free of rog woody
vegetation, organic after, and a er objectionable mat al. Pace the rill in
litrs not to exceed ruche , and machine compact it. i vver N the embankment
6 inches to allow or settyement.
3. axe the basin to the fled dimensions. Prevent 1 e skim ing device
gettlinq into the trr�i, excavating a shallow pit and�r a skimmer or
providing a low support unde>Y the skimmer of stone or timber.
4. Place the bo7gf (t idol 4-ingh Sd�edule 40 PVC �ip� on o fifirm, smooth
foundation o imp ou soil uo 1111a use Pervioug a al such as sand
gravel, or crushed tone as bac kh7l around the pi e. Pla a the fill material
n� the p er rgllw in 4-inch layers o il co il pactirf under am aCround
e i e to lestt t same ensi y as e a c e�►b nk pent. are must
e taken not f ra' a the pT e fr the firm cohtac with i�s fououndation when
compacting undoer lhse pipe l�oun es.
Place a minimum d th of p f f of cols acted bac kfil over the pie rllway
before crossm� wili cons#rucon egwpient. In no �ase should tie p)e
conduit per ins al ed any cutting a trench through the am after the embankment
is complete.
5. Assemble the skimmer following the manufacturers instructions, or as designed.
6. Lay the a senbled skimm on the bottom o the bpsin Ivithh he flexble
arot at ttsh let of the �arrel ipe. Attach he flexible int o the lgrrel pipe
d postitiar rthe skimmer over ghe excavat pit or s�p�°orf. �e TV re to attach
ropy f th skimmer ��nd anchorr it to the Nde of thb basin. This will be used
o pu 1 �ie imme or e side or maintenance.
7. Earthen spilwa/ys-stall the spillway in undisturbed sal to the greatest
extent possible. a gchievement cif planned elevation% gratlee, desi n width,
a d en ra ce and exit Bann slopes are criti al to the s cces fulgoperation
9 the spi way. tie ill y 1(1 be lined w'cth larginatek�plasyic or
rm a ble eotexti tw�ric. e f bri m s� bbe role qrid Ion en h t
oO►perie botom gnat' s des an exyena� ono thgop of the dim ta�nc�orin9
in a trench. a ed es me be s red wit 8-inch staples or pins. 'thhe rabri
rust ¢� lon� to el t d down the slope qnd exit ontg stab) ropnd.
e wi th o dre ric m s be oneg piece, not rued or spbc oefh�rwise
water an et rider fh fabric �tt e len th of he fabriis insufficient f the
entire r(engt�n o� the sp►way, mu'ti le sect�ons spanning the cam leye widtgr
ma be used )ire Upper section(n should overlap the Tower ection(s) o
th�t water cannot flow under the fabric. Secure the upper ea�gp and sues
of the fabric in a trench with staples or pins. (Adopted from A Manual for
Desigyning, Installing and Mai taining Skimmer Sediment Basins.' February,
1999. J. W. Faircloth &SonI .
8. Inlets-Discha ge w tgr into the basin in a mfnner f fevertt erosion. Ube
temporaryslope rams or diversions with outlet proye�tton to divert sediment -
laden waer to the upper end of the pool area to improve basin trap efficiency
9. Erosion control- onstruct the structure so that the disturbed area is
minimi Di sun ce water a fro Days ar s. Gam lete they
am ent be e e area rs a red. �Stabrize the emer�enc spilway
embankment an all other distu ed areas above the crest of trhe prinCT al
spillway immediately after construction (References: Surface Stabilization
10. After all the si�r ent-produ i areas h ve 5b�m on ttfy stabilizedremove the sfru ure a5nd alfilge unstanNe serPif. ore hthe area to
blend with the adjoining areas and stabilize erly References: Surface
Stabilization).
1pspect skimmer sediment basins at least weekly and after each significant
(ong-half in or reater) rainfall event and air iMmediatel . R eve
sediment an rest it bas' to its orgin f ion ion elyi se7menf
accumulates to one -hake the al,
of t�ne I s b e. Aulhhe skimmer to
one side so that the sediment undenTeoth it can ge excavated. Excavate the
��anent from th entire basin, t Vs around the skimmer or the fit cell.
Make sure vegetation growing in �Re jubottom of the basin does not hold down
the skimmer.
If the skimmer is clog
ed nth tro and Cher is water 'n the b sin, u ally
rm on the r e ma�Ce the immer boa up and a�own ancpdi Quo
e dgg¢risand r fgre flow. If this �oes not WT[k, gll the skimm errsrtlae of the gsin and remove t e debris. A so edk the on ce inside the
skimmer to see if it is clogged, • if so remove the debris.
If the skimmer arm or barrel pipe is clogged, the orifice can be removed and
the obstruction cleared with a plumber's snake or by flushing with water. Be
sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs
with fabric that spans the full width of the spillway. Check the embankment,
spillways, and outlet for erosion damage, and inspect the embankment for
piping and settlement. Make all necessary repairs immediately. Remove all
trash and other debris from the skimmer and pool areas.
Freezing weather can result in ice forming in the basin. Some special
precautions should be taken in the winter to prevent the skimmer from
pluggina with ice.
Land Grading
Specification / 6.02 - Construction Specifications
1.Construct and maintain all erosion and sedimentation control practices and
measures in accordance with the approved sedimentation control plan and
construction schedule.
2Remove good topsoil from areas to be graded and filled, and preserve it for
use in finishing the grading of all critical areas.
3.Scarify areas to be topsoiled to a minimum depth of 2 inches before placing
topsoil (Practice 6.04, Topsoiing).
4.Clear and grub areas to be flied to remove trees, vegetation, roots, or other
objectionable material that would affect the planned stability of the fill.
5.Ensure that fit/ material is free of brush, rubbish, rocks logs, stumps
budding debris and other materials inappropriate for constructing stable
fills.
6.Place all All in layers not to exceed 9 inches in thickness and compact the
layers as required to reduce erosion, slippage, settlement, or other related
problems.
7.Do not incorporate frozen material or soft, mucky, or highly compressible
materials into All slopes.
&Do not place All on a frozen foundation, due to possible subsidence and
slippage.
9.Keep diversions and other water conveyance measures free of sediment during
all phases of development.
10.Handle seeps or springs encountered during construction in accordance with
approved methods (Practice 6.81, Subsurface Drain).
11.Permanently stabilize all graded areas immediately after final grading is
completed on each area in the grading plan. Apply temporary stabilization
measures on all graded areas when work is to be interrupted or delayed for 30
working days or longer.
12.Ensure that topsoil stockpiles borrow areas, and spoil areas are adequately
protected from erosion with temporary and final stabilization measures, including
sediment fencing and temporary seeding as necessary.
Maintenance
Periodically check all graded areas and the supporting erosion and sedimentation
control practices especially after heavy rainfalls. Promptly remove all
sediment from diversions and other water -disposal practices. if washouts or
breaks occur, repair them immediately. Prompt maintenance of small eroded areas
before they become significant gullies is an essential part of an effective
erosion and sedimentation control plan.
Temoorary Seedina (continued
Table 6.10a - Temporary Seeding Recommendation for Late Winter and Early Spring
Seeding mixture
Species- Rye(groin), Annual lespedeza (Kobe in Piedmont and Coastal Plain
Rate (Ib/acre)- 120
Omit annual lespedeza when duration of temporary cover is not to extend beyond
June
Seeding dates -Coastal Plain - Dec. 1 - Apr. 15.
Soil amendments- Follow recommendations of soil tests or apply 2,000 Ib/acre
ground agricultural limestone and 750 Ib/acre 10-10-10 fertilizer.
Mulch -Apply 4,0001b/acre straw. Anchor straw by tacking with asphalt netting
or a mulch anchoring tool. A disk with blades set nearly straight can be used
as a mulch anchoring tool.
Maintenance - Refertilize if growth is not fully adequate. Reseed, refertilize
and mulch immediately following erosion or other damage.
Table 6.10b - Temporary Seeding Recommendations for Summer
Seeding mixture
Species -German millet
Rate(lb/acre)- 40
Seeding dates -Coastal Plain- Apr.
15-Aug. 15
Soil amendments -Follow recommendations of soil tests or apply 2,000 ib/axe
ground agricultural limestone and 750 Ib/acre 10-10-10 fertilizer.
Mulch -Apply 4,000 ib/acre straw. Anchor straw by tacking with asphalt netting
or a mulch anchoring tool A disk with blades set nearly straight can be used
as a mulch anchoring tool.
Maintenance-Refertrlize if growth is not fully adequate. Reseed, refertilize
and mulch immediately following erosion or other damage.
Table 6.10c - Temporary Seeding Recommendation for Fall
Seeding mixture
Species-Rye(grain)
Rote(lb/acre) - 120
Seeding dates - Coastal Plain and Piedmont -Aug 15 - Dec. 30
Soil amendments - Follow soil tests or apply ZOOO Ib./acre ground agriculturel
limestone and 1,000 Ib/acre 10-10-10 fertilizer.
Mulch- Apply 4,000 Ib/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch anchoring tool. A disk with blades set nearly straight can
be used as a mulch anchoring toot
Maintenance- Repair and refertilize damaged areas immediately. Topdress with 50
ib/acre of nitrogen in March, if it is necessary to extend temporary cover
beyond June 15, overseed with 50 Ib/ocre Kobe (Piedmont and Coastal Plain)
OP
Outlet Stabilization Structure
Specification / 6.41 - Construction Specifications
1. Ensure that the subgrade for the Alter and riprap follows the required lines
and grades shown in the plan. Compact any fill required in the subgrade to
the density of the surrounding undisturbed material. Low areas in the
subgrade on undisturbed soil may also be filled by increasing the rfprop
thickness.
2. The riprap and gravel filter must conform to the specified grading limits
shown on the plans.
J. Filter cloth, when used, must meet design requirements and be properly
protected from punching or tearing during installation. Repair any damage by
removing the riprap and placing another piece of filter cloth over the
damaged area. All connecting joints should overlap a minimum of I ft. If
the damage is extensive, replace the entire filter cloth.
4. Rlprop may be placed by equipment, but take care to avoid damaging the
Alter.
5. The minimum thickness of the riprap should be 1.5 times the maximum stone
diameter.
6. Rpprop may be field stone or rough quarry stone. It should be hod, angular;
highly weather -resistant and well graded.
6. Construct the apron on zero grade with no overfall at the end Make the top
of the riprap at the downstream end level with the receiving area or slightly
below it.
8. Ensure that the apron is properly aligned with the receiving stream and
preferably straight throughout its length. if a curve is needed to fit site
conditions, place it in the upper section of the apron.
9. Immediately after construction, stabilize all disturbed areas with vegetation
(Practice 6.10, Temporary Seeding, and 6.11, Permanent Seeding),
Maintenance
Inspect riprop outlet structures after heavy rains to see if any erosion around
or below the riprap has taken place or if stones have been dislodged.
Immediately make all needed repairs to prevent further damage.
PermoneaL Seeding
Specifications / 6.11 - Specifications
Seedbed Requirements
Establishment of vegetation should not be attempted on sites that are unsuitable
due to inappropriate sort texture (Table 6.110), poor drainage, concentrated
overland flow, or steepness of slope until measures have been taken to correct
these problems.
To maintain a good stand of vegetation, the soil must meet certain minimum
requirements as a growth medium. The existing soil should have these criteria:
- Enough fine-grained (sit and day) material to maintain adequate
moisture and nutrient supply (available water capacity of at least .05
inches water to 1 inch of soi).
- Sufficient pore space to permit root penetration.
- Sufficient depth of soil to provide an adequate root zone. The depth to rock
or impermeable layers such as hardpans should be 12 inches or more, except on
slopes steeper than 21 where the addition of soil is not feasible.
- A favorable pH range for plant growth, usually 6.0-6.5.
- Freedom from large roots, branches, stones, large clods of earth, or trash of
any kind. Clods and stones may be left on slopes steeper than 3:1 if they are
to be hydroseeded.
If any of the above criteria are not met-i.e., if the existing soil is too
coarse, dense, shallow or acidic to foster vegetation -special amendments are
required. The soil conditioners described below may be beneficial or,
preferably, topsoil may be applied in accordance with Practice 6.04, Topsoiing.
Soil Conditioners
In order to improve the structure or drainage characteristics of a soil, the
following material may be added. These amendments should only be necessary
where soils have limitations that make them poor for plant growth or for fine
turf establishment (see Chapter 3, Vegetative Considerations).
Peat -Appropriate types are sphagnum moss peat, hypnum moss peat, reedsedge peat,
or peat humus, all from fresh -water sources. Peat should be shredded and
conditioned in storage pries for at least 6 months after excavation.
Sand -dean and free of toxic materials
Vermiculite -horticultural grade and free of toxic substances.
Rotted manure -stable or cattle manure not containing undue amounts of straw or
other bedding materials.
Thoroughly rotted sawdust- free of stones and debris. Add 6 Ib. Of nitrogen to
each cubic yard.
Sludge -Treated sewage and industrial sludges are available in various forms:
these should be used only in accordance with local, State and Federal
regulations.
Species Selection
Use the key to Permanent Seeding Mixtures (Table 6.11b) to select the most
appropriate seeding mixture based on the general site and maintenance factors.
A listing of species, including scientific names and characteristics is given
in Appendix 6.02.
Seedbed Preparation
Install necessary mechanical erosion and sedimentation control practices before
seeding, and complete grading according to the approved plan.
Lime and fertilizer needs should be determined by sort tests. Soil testing is
performed free of charge by the North Carolina Department of Agriculture soil
testing laboratory. Directions, sample cartons, and information sheets are
available through county agricultural extension offices or from NCOA. Because
the NCOA soil testing lab requires i-6 weeks for sample turn -around, sampling
must be planned well in advance of final grading. Testing is also done by
commercial laboratories.
When soil test are not available, follow rates suggested on the individual
specification sheet for the seeding mix chosen (Tables 6.11c through 6.11 y).
Applications rates usually fall into the following ranges:
- Ground agricultural limestone
Light -textured, sandy soil 1-1 1/2 tons/acre
Heavy textured, clayey soils 2-3 tons/acre
- Fertilizer.
Grasses 800-1200 Ib/acre of 10-10-10 (or the equivalent)
Grass -legume mixtures: 800-1200 Ib/aoe of 5-10-10 (or the equivalent)
Apply lime and fertilizer evenly and incorporate into the top 4-6 inches of soil
by disking or other suitable means. Operate machinery on the contour. When
using a hydroseeder, apply lime and fertilizer to a rough, loose surface.
Roughen surfaces according to Practice 6.03, Surface Roughening.
Complete seedbed preparation by breaking up large clods and raking into a
smooth, uniform surface (slope less than 3:1) Fill in or level depressions than
can collect wafer. Broadcast seed into a freshly loosened seedbed that has not
been sealed by rainfall.
Table 6.11s - Seeding No. 4CP for.
Well -Drained Sandy looms to Dry Sands Coastal Plain, Low to Medium -Care Lawns
Seeding mixture
Species - Centipedegrass - Rate - 10-20 Ib/acre (seed) or 33 bu/acre (sprigs)
Seeding dates - Mar. - June, (Sprigging can be done through July where water is
available for irrigation.)
Soil amendments - Apply lime and fertilizer according to soil test, or apply 300
Ib/acre 10-10-10.
Sprigging - Plant sprigs in furrows with a tractor -drown transplanter, or
broadcast by hand.
Furrows should be 4-6 inches deep and 2ff apart. Place sprigs about 2 ft. apart
in the row with one end of or above ground level (Figure 6.11d).
Broadcast at rates shown above, and press sprigs into the fop 1 1/2 inches of
soil with a disk set straight so that sprigs are not brought back toward the
surface.
Mulch - Do not mulch
Maintenance - Fertilize very sparingly- 20 Ib/axe nitrogen in spring with no
phosphorus. Centipedegross cannot tolerate high pH or excess fertilizer.
Maintenance
Table 6.11 t - Seeding No. 5CP for. Well -Drained Sandy Looms to Dry Sands; Low
Seeding mixture
Species Rate (Ib/acre)
Pensacola Bahiagross 50
Sericea lespedeza 30
Common Be►mudogross 10
Cerman millet 10
Seeding notes
1. Where a neat appearance is desired, omit sericea
2. Use common Bermudograss only on isolated sites where if cannot become a pest.
Bermudograss may be replaced with 5 Ib/acre centipedgrass.
Seeding dates - Apr. 1 - July 15
Sail amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Ib/acre ground agricultural limestone and 500 Ib/acre 10-10-10 fertilizer.
Mulch
Apply 4,000 Ib/acre grain straw or equivalent cover of another suitable mulch.
Anchor by tacking with asphalt, roving and netting or by crimping with a mulch
anchoring tool. A disk with blades set nearly straight can be used as a mulch
anchoring tool.
Maintenance - Refertiize the following Apr. with 50 Ib/acre nitrogen. Repeat
as growth requires May be moved only once a year. Whore a neat appearance is
desired, omit sericea and now as often as needed.
Table 6.11 v - Seeding No. 7CP for. Grass -lined Channels; Coastal Plain
Seeding Mixture
Species - Common Bermudograss - Rate - 40-80 (1/2 Ib/1,000 ft )
Seeding dates - Coastal Plain, Apr - July
Soil amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Ib/acre ground agricultural limestone and 500 Ib/acre 10-10-10 fertilizer.
Mulch - Use jute, excelsior matting, or other effective channel lining material
to cover the bottom of channels and ditches. The lining should extend above the
highest calculated depth of flow. On channel side slopes above this height, and
in drainages not requiring temporary linings apply 4,000 lb/acre grain straw
and anchor straw by stapling netting over the top.
Mulch and anchoring materials must be allowed to wash down slopes where they can
clog drainage devices
Maintenance -A minimum of 3 weeks is required for establishment. Inspect and
repair much frequently. Refertiize the following Apr. with 50 Ib/acre
Refer to Appendix 802 for botanical names
,11
II�I
IiM
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
MILMINGTON, NC 28406
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PROJECT NO.: 06-0134
Sheet NEC11 aEC12

STAPLES STRAW BALE
(2 PER BALE)
10 MIL PLASTIC LINING
NATIVE MATERIAL
(OPTIONAL) Fir
WOOD OR
METAL STAKES
(2 PER
SECTION B-B U
N. T. S.
36
>'"I
WIRE
PLYWOOD
48"x24"
PAINTED WHITE
BLACK LETTERS
6" HEIGHT
zLAG SCREWS
WOOD POST
3.5 x3.5"X8'
CONCRETE WASHOUT
SIGN DETAIL
(OR EQUIVALENT)
VARIES
8" 1.12" DIA.
STEEL WIRE
STAPLE
10 MIL PLASTIC LINING PLAN ��.TRAW BALE DETAIL
N. T. S.
TYPE "ABOVE GRADE" WITH STRAW BALES
NOTES,
1. ACTUAL LAYOUT TO BE DETERMINED IN THE FIELD.
2. A CONCRETE WASHOUT SIGN SHALL BE INSTALLED WITHIN
30 FT OF THE TEMPORARY CONCRETE WASHOUT FACILITY.
3. MATERIALS USED TO CONSTRUCT TEMPORARY CONCRETE
WASHOUT FACILITIES SHALL BE REMOVED FROM THE SITE
OF THE WORK AND DISPOSED OF OR RECYCLED.
4. HOLES, DEPRESSIONS OR OTHER GROUND DISTURBANCE
CAUSED BY THE REMOVAL OF THE TEMPORARY CONCRETE
WASHOUT FACILITIES SHALL BE BACKFILLED, REPAIRED
AND STABILIZED TO PREVENT EROSION.
MAINTENANCE:
1. CONCRETE WASHOUTS SHOULD BE INSPECTED DAILY AND AFTER
HEAVY RAINS. DAMAGES SHOULD BE REPAIRED PROMPTLY. IF FILLED
TO OVER 75% CAPACITY WITH RAIN WATER IT SHOULD BE VACUUMED
OR ALLOWED TO EVAPORATE TO AVOID OVERFLOWS. BEFORE HEAVY
RAINS THE CONTAINERS LIQUID LEVEL SHOULD BE LOWERED OR THE
CONTAINER COVERED TO AVOID AND OVERFLOW DURING RAIN. WHEN
SOLIDS HAVE HARDENED THEY SHOULD BE REMOVED AND RECYCLED.
NOTE ELL
1. SOIL STABILIZATION TIMEFRAMES
a-BERM
10 MIL PLASTIC LININ
SECTION A -A
13'N. T, S.
LATH AND
FLAGGING ON
THREE SIDES
10 f
MIN
o � o
SANDBAG
0
A A
VARIES QUi
BERM
0 0 0 0
10 MIL PLASTIC LINING ELAN
N.T.S. TYPE "BELOW GRADE"
�10 MIL PLASTIC LINING
WOOD FRAME SECURELY- SECTION B-B
FASTENED AROUND N.T.S.
ENTIRE PERIMETER
WITH TWO STAKES 10 FT MIN-- -
TWO STACKED
2X12 ROUGH
B B WOOD FRAME
VARIES /STAKE (TYP)
10 MIL PLASTIC LINING PLAN TYPE "ABOVE GROUND"
N. T. S. WITH WOOD PLANKS
CONCRETE OUT DETAIL
NOT TO SCALE
LEGEND
LIMITS OF DISTURBANCE
7 DAY STABILIZATION
SITE AREA DESCRIPTION
STABIUZARON
71MEFRAME EXCEPTIONS
PERIMETER DIKES;SWALES
7 DAYS
NONE
DITCHES AND SLOPES
HIGH QUALITY ZONES HQW
7 DAYS
NONE
SLOPES STEEPER THAN J.1
7 DAYS
IF SLOPES ARE 10 FT OR LESS IN LENGTH
AND ARE ARE NOT STEEPER THAN 2-- 1,
14 DAYS ARE ALLOWED
SLOPES 3:1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50 FT IN LENGTH
ALL OTHER AREAS WITH SLOPES
14 DAYS
NONE, EXCEPT FOR PERIMETER AND
FLATTER THAN 4.1
HQW ZONES
Rpsq p
41%
/ ALL OTHER AREAS 14 DAY STABIUZATION
r1f
ALL OTHER AREAS 14 DAY STABIUZA LION z i
/.
1 /
U �<
i` ALL OTHER AREAS 14 DAY STABIUZA
/
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I/ . - . . . . . . - -
j
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SCALE IN FEET: 1"-- 200'
200 100 0 200 400 600
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DA TE.• 12-17-15
HORZ. SCALE. 1" = 200'
VERT. SCALE. N/A
DRAWN BY RL W
CHECKED BY- HSR
PROJECT NO.: 06-0134
EC12 EC12
Sheet No. Of

30 15 0 30 60 90�\
SCALE IN FEET: 1 "= 30'
33.3 FT
6 FT
TOP OF VEG. SHED"
PERMANENT POOL
= 6:1 PLANTED SHELF
PA
Proposed Plon t Toble
VFr.FTATIVF PI AN7TNG 6:1 SHELF
Quantity
Symbol
Scientific Name
Common Name
Planting Size
Planting Remarks
Planting Season
1,217
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217
LOBELIA CARDINALIZ
CARDINAL FLOWER
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217
1
RHYNCHOSPORA COLORATA
STARRUSH WHITETOP
4 CUBIC INCH
8' O.C.
SPRING, FALL
O.C. — "ON CENTER" CAL. — "CALIPER AT 6" ABOVE GRADE" GAL. — "GALLON CONTAINER"
PLANTINGS REQUIRED = 14,502 SF / 200 = 73 X 50 = 3,650 PLANTS REQUIRED
MINIMUM OF 3 DIFFERENT SPECIES REQUIRED
REMAINING PORTION OF POND ABOVE 6:1 SHELF 70 BE PLANTED WITH CENTIPEDE GRASS
FOREBAY BERM TO BE CENTIPEDE GRASS OR LINED NTH RIP RAP
FIVIKI'M VA
1. WORK SHALL MEET THE REQUIREMENTS OF ALL LOCAL, STATE, AND FEDERAL GOVERNING CODES, ORDINANCES LAWS, REGULATIONS SAFETY
ORDERS AND DIRECTIVES
Z CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING HIMSEL.FAERSELF FAMILIAR WITH ALL UNDERGROUND UTILITIES, PIPES AND STRUCTURES
CONTRACTOR SHALL TAKE SOLE RESPONSOUTY FOR ANY COST INCURRED DUE TO DAMAGE OF SAID U71UIIES
J. CONTRACTOR MUST CHECK ALL SITE CONDITIONS PRIOR TO COMMENCING WORK CONTRACTOR SHALL NOT WILLFULLY PROCEED WITH
CONSTRUCTION AS DESIGNED WHEN IT IS OBVIOUS THAT UNKNOWN OBSTRUCTIONS AND/OR GRADE DIFFERENCES EXIST THAT MAY NOT HAVE
BEEN KNOWN DURING DESIGN. SUCH CONDITIONS SHALL BE IMMEDIATELY BROUGHT 70 THE ATTENTION OF THE ENGINEER. THE CONTRACTOR
SHALL ASSUME FULL RESPONSIBILITY FOR ALL NECESSARY REVISIONS DUE TO FAILURE 70 GIVE SUCH NOTIFICATION.
4. ALL PLANT QUANTITIES ARE IDENTIFIED BY TYPICAL SYMBOLS REFER TO PLANT LEGEND FOR QUANTITIES PLANT QUANTITIES ARE
APPROXIMATE AND ARE PROVIDED FOR THE CONVENIENCE OF THE CONTRACTOR. IT SHALL BE THE CONTRACTOR'S RESPONSIBIUTY TO CONFIRM
ALL PLANT QUAN7171ES PRIOR 70 ADDING. IN THE EVENT OF DISCREPANCIES IN PLANT COUNT, QUANTITIES INDICATED BY PLANT SYMBOLS
SHALL PREVAIL.
5. CONTRACTOR SHALL NOTIFY DESIGNER IF ANY SPECIFIED PLANT MATERIAL IS FOUND 70 BE UNAVAILABLE.
6. ALL AREAS NOT WITHIN THE 6.1 SHELF SHALL BE STABILIZED WITH CENTIPEDE GRASS
7. IF ANY OF SPECIFIED PLANTS ARE UNAVAILABLE; CHOOSE A NATIVE ALTERNATIVE FROM UST ON THIS PAGE.
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CARIX TENERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE TURTLEHEAD)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PT WEED)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PT WEED)
- EUPATORIADELPHUS FISTULOSUS (JOE PYE WEED)
- EUPATORIADELPHUS MACULATUS (SPOTTED TRUMPETWEED)
- HISSISCUS COCCINEUS (SCARLET ROSE MALLOW)
- hWSCUS LAEVIS (HALKRDIEAF ROSEMALLOW)
- KOSTELE72KYA VIRGINICA (SEASHORE MALLOW)
- LOBELIA CARDINALIZ (CARDINAL FLOWER)
- LOBELIA ELONGATA (LONGLEAF LOBELIA)
- LOBELIA SIPHILITICA (GREAT BLUE LOBELIA)
- RHYNCHOSPORA COLORATA (STARRUSH WHITE70P)
- SACCHAROM BALDiWNII (NARROW PLUMEGRASS)
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDEN
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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DA TF• 7-17-17
HORZ. SCALE. I" = 30'
VERT. SCALE.- N/A
DRAWN BY RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
,%�eet No. LP 1 of LP3

I 10 I 20 40 .I
6 FT
33.3 FT
WET BASIN 3A
1 " = 20'
Proposed Plant Table
TOP OF VEG. SHELF VEGETATIVE PLANTING 6:1 SHELF
PERMANENT POOL
BOTTOM OF VEG. SHELF
T E VEGETA T1 VE PLANTING
FOR 6: 1 SHELF
PLANTINGS FOR 6:1 VEGETA T1 VE SHELF
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX TENERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE 7UR7LEHEAD)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS RSTULOSUS (JOE PYE WEED)
- EUPATORIADELPHUS MACULATUS (SPOTTED TRUMPETWEED)
- HIBBSSCUS COCCINEUS (SCARLET ROSE MALLOW)
- HIBISCUS LAEVIS (HALBERDLEAF ROSEMALLOW)
- KOSIE'LE72KYA V►RGINICA (SEASHORE MALLOW)
- LOBELIA CARDINALIZ (CARDINAL FLOWER)
- LOBELIA ELONGATA (LONGLEAF LOBELIA)
- LOBELIA SIPHIL171CA (GREAT BLUE LOBELIA)
- RHYNCHOSPORA COLORATA (STARRUSH WHITETOP)
- SACCHARUM BALDWINII (NARROW PLUMEGRASS)
= 6:1 PLANTED SHELF
Quantity
Symbol
Scientific Name
Common Name
Planting Size
Planting Remarks
Planting Season
825
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
4 CUBIC INCH
8' O.C.
SPRING, FALL
825
LOBELIA CARDINAUZ
CARDINAL FLOWER
4 CUBIC INCH
8' O.C.
SPRING, FALL
825
RHYNCHOSPORA COLORATA
STARRUSH WHITETOP
4 CUBIC INCH
8' O.C.
SPRING, FALL]
O.C. — "ON CENTER" CAL. — "CALIPER AT 6" ABOVE GRADE" GAL. — "GALLON CONTAINER"
PLANTINGS REQUIRED = 9,902 SF / 200 = 49.5 X 50 = 2,475 PLANTS REQUIRED
MINIMUM OF 3 DIFFERENT SPECIES REQUIRED
REMAINING POR71ON OF POND ABOVE 6:1 SHELF TO BE PLANTED WITH CENTIPEDE GRASS
FOREBAY BERM TO BE CENTIPEDE GRASS OR LINED WITH RIP RAP
PLANTINGS NOTES:
1. WORK SHALL MEET THE REQUIREMENTS OF ALL LOCAL, STATE, AND FEDERAL GOVERNING CODES, ORDINANCES, LAWS, REGULATIONS, SAFETY
ORDERS AND DIRECTIVES.
2. CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING HIMSELFAERSELF FAMILIAR WIIH ALL UNDERGROUND UTILITIES, PIPES AND STRUCTURES.
CONTRACTOR SHALL TAKE SOLE RESPONSIBILITY FOR ANY COST INCURRED DUE TO DAMAGE OF SAID UTILITIES.
3. CONTRACTOR MUST CHECK ALL SITE CONDITIONS PRIOR TO COMMENCING WORK. CONTRACTOR SHALL NOT WILLFULLY PROCEED WITH
CONSTRUCTION AS DESIGNED WHEN IT IS OBVIOUS THAT UNKNOWN OBSTRUCTIONS ANDIOR GRADE DIFFERENCES EXIST THAT MAY NOT HAVE
BEEN KNOWN DURING DESIGN. SUCH CONDITIONS SHALL BE IMMEDIATELY BROUGHT TO THE ATTENTION OF THE ENGINEER. THE CONTRACTOR
SHALL ASSUME FULL RESPONSIBILITY FOR ALL NECESSARY REVISIONS DUE TO FAILURE TO GIVE SUCH NOTIFICATION.
4. ALL PLANT QUANTITIES ARE IDENTIFIED BY TYPICAL SYMBOLS REFER TO PLANT LEGEND FOR QUANTITIES PLANT QUAN7171ES ARE
APPROXIMATE AND ARE PROVIDED FOR THE CONVENIENCE OF THE CONTRACTOR. IT SHALL BE THE CON7RACTOR'S RESPONSIBILITY TO CONFIRM
ALL PLANT OUAN77TIES PRIOR TO BIDDING. IN THE EVENT OF DISCREPANCIES IN PLANT COUNT, QUAN7171ES INDICATED BY PLANT SYMBOLS
SHALL PREVAIL.
5. CONTRACTOR SHALL NOTIFY DESIGNER IF ANY SPECIFIED PLANT MATERIAL IS FOUND TO BE UNAVAILABLE.
6. ALL AREAS NOT WITHIN THE 6:1 SHELF SHALL BE STABILIZED WI7H CEN7IPEDE GRASS
7 IF ANY OF SPECIFIED PLANTS ARE UNAVAILABLE, CHOOSE A NATIVE ALTERNATIVE FROM LIST ON THIS PAGE.
60 •I
WET BASIN 3B
1 " = 30'
P.P
1 t'
170
II
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILM/NGTON, NC 28406
[phone]
CAlu0
N R
:Qz SEAL' 9<'.
025483 —
1-10-20 ''�,
NI
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DATE.• 9-15-17
HORZ. SCALE. AS N07ED
VERT. SCALE. • N/A
DRA WN B Y.• MRB
CHECKED BY.- HSR
�=PRWE=CTNO.: 06-0134
LS.heet No. LP3 of jjPJ

FOREBA Y 2A-1 AREA
FOREBA Y 2C-1 AREA
14 14 15 151 15
O
FOREBA Y 2B-2 AREA
14 14 14 4 4
55
e I/ 43
G �
� 0� 46 �
i 42 �` 47 n
FOREBA Y 2C— 2 AREA
FOREBAY 2B-3 AREA
FOREBA Y 2B —1 AREA
AMTCHLINE A —A
100 50 0 100 200 300
SCALE W FEET.• 1"= 100'
COSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
IMLMINGTON, NC 28406
[phone]
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9-15-17
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DA TE.• 6-20-17
HORZ. SCALE. I" = 100'
VERT. SCALE. N/A
DRAWN BY- RL W
CHECKED BY.• HSR
PROJECT NO.: 06-0134
Sheet No. Of

LINE TABLE FOR POND 1 DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L34
58.85'
S22`13'25"W
L35
345.23'
N80°07'05"W
L36
105.62'
N66°44'50"W
L37
36.24'
N64'1 O'l 1 "W
L38
43.63'
N83`18'54"W
L39
41.96'
S84°00'21 "W
L40
41.29'
S61 °28'02"W
L41
47.92'
N51 °44'26"W
L42
19.63'
NO3°56'36"E
L43
64.83'
N51 `34'46"W
L44
40.00'
S39'44'41 "W
L45
78.84'
S46'21'28"E
L46
40.33'
S39°37'26"E
L47
50.23'
S33°09'09"W
L48
46.36'
S14°58'30"W
L49
46.79'
SO4°03'21 "E
L50
49.62'
S19'51'54"E
L51
48.15'
S42'55'21 "E
L52
39.95'
S55°10'09"E
L53
59.61'
S70°24'08"E
L54
54.55'
S08°58'56"W
L55
199.28'
S83'14'10"W
LINE TABLE
TAG
LENGTH
DIRECTION
L56
21.96'
S30'49'24"W
L57
83.64'
S00°00'00"E
L58
89.11'
S11 `04'38"E
L59
32.84'
S29"01'40"E
L60
42.99'
S21 °45'33"W
L61
109.01'
S00°27'17"W
L62
40.29'
S61 °00'45"W
L63
39.01'
S12`07'15"E
L64
32.19'
N76°51'23"E
L65
31.44'
S33`20'40"E
L66
77.74'
S27'51'51 "E
L67
285.05'
N77°25'32"E
L68
64.42'
N76°42'29"E
L69
28.61'
S13°08'15"E
L70
50.01'
N75°44'36"E
L71
27.77'
N13°08'15"W
L72
264.33'
N76'42'29"E
L73
84.62'
N73'47'26"E
L74
139.17'
NI *16'04"E
L75
448.66'
N08°09'56"E
L76
54.87'
N10*57'11 "E
L77
147.24'
N80°19'10"W
LINE TABLE FOR POND 2A, 2B & 2C DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L136
54.98'
N34"52'16"W
L137
100.00'
N06°54'57"E
L138
178.32'
N1417'05"W
L139
682.90'
N18°01'59"E
L140
63.31'
N67°43'40"W
L141
63.15'
N19'32'55"E
L142
85.48'
S62'38'25"E
L143
126.03'
S72°13'51 "E
L144
70.29'
S18'42'39"W
L145
185.58'
S71 °50'05"E
L146
44.60'
S17'39'22"W
L147
26.89'
S75°14'09"E
L148
423.69'
S79°59'39"E
L149
635.49'
S09`10'37"W
L150
181.14'
N81 °06'07"W
L151
129.52'
N57°46'31"W
L152
166.14'
S39°36'43"W
L153
370.04'
S80°02'48"E
L154
988.81'
S09°57'46"W
L155
30.00'
S09°57'46"W
L156
319.36'
S10°00'37"W
L157
147.24'
N80'19'10"W
++++++++++
+++++++++
+ +
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ +
+
+
+
+
+
+
+
+
LINE TABLE
TAG
LENGTH
DIRECTION
L158
28.54'
N22°42'36"W
L159
301.14'
N79°51'39"W
L160
142.35'
N27`42'52"W
L161
109.17'
N12°57'40"E
L162
125.50'
N26`11'11 "W
L164
328.84'
S53°27'18"W
L165
96.26'
N89°27'10"W
L166
100.49'
S50°27'01 "W
L167
179.17
N43°39'44"W
L168
184.64'
N00'50'51 "W
L169
109.21'
N07'53'12"E
L170
40.26'
N26"14'25"E
L171
103.49'
N10°30'36"E
L173
17.40'
N80`19'03"W
L174
38.56'
N11 °54'40"E
L176
104.80'
N11'30'34"E
L177
405,34'
S79°26'55"E
L178
55.42'
N10*33'21"E
L179
110.64'
N78`09'16"W
L180
265.71'
N09'57'30"E
L181
100.25'
S81 °43'50"E
L182
136.79'
N12°30'05"E
DRAINAGE AREA FOR NCDEQ
POND SYSTEM 1 (POND 1) = 675,561 SF (15.51 AC)
DRAINAGE AREA FOR NCDEQ ----
POND SYSTEM 2 (PONDS 2A, 2B & 2C) = 1,852,J86 SF (42.52 AC)
DRAINAGE AREA FOR NCDEQ 4 ry
POND SYSTEM 3 (PONDS 3A & 3B) = 1,119, 644 SF (25.70 AC) 77 f \
LINE
TABLE FOR POND 3A & 3B DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L34
58.85'
S2213'25"W
L35
345.23'
N80`07'05"W
L36
105.62'
N66°44'50"W
L37
36.24'
N64°1 O'11 "W
L38
43.63'
N83°18'54"W
L39
41.96'
S84°00'21 "W
L40
41.29'
S61 `28'02"W
L41
47.92'
N51'44'26"W
L42
19.63'
NO3"56'36"E
L43
64.83'
N51'34'46"W
L44
40.00'
S39'44'41 "W
L45
78.84'
S46°21'28"E
L46
40.33'
S39°37'26"E
L47
50.23'
S33`09'09"W
L48
46.36'
S14°58'30"W
L49
46.79'
SO4`03'21 "E
L50
49.62'
S19°51'54"E
L51
48.15'
S42°55'21 "E
L52
39.95'
S55°10'09"E
L53
59.61'
S70°24'08"E
L54
54.55'
S08°58'56"W
L55
199,28'
F3`14'10"W
LINE TABLE
TAG
LENGTH
DIRECTION
L56
21.96'
S30`49'24"W
L57
83.64'
S00°00'00"E
L58
89.11'
S11 °04'38"E
L59
32.84'
S29°01'40"E
L60
42.99'
S21'45'33"W
L61
109.01'
S00°27'17"W
L62
40.29'
S61 °00'45"W
L63
39.01'
S12'07'15"E
L64
32.19'
N76°51'23"E
L65
31.44'
S33°20'40"E
L66
77.74'
S27`51'51 "E
L67
285.05'
N77°25'32"E
L68
64.42'
N76°42'29"E
L69
28.61'
S13'08'15"E
L70
50.01'
N75°44'36"E
L71
27.77'
N13`08'15"W
L72
264.33'
N76`42'29"E
L73
84.62'
N73'47'26"E
L74
139.17'
N11 *16'04"E
L75
448.66'
N08°09'56"E
L76
54.87'
N10*57'11 "E
L77
147.24'
N80'19'10"W
200 100 0 200 400 600
SCALE IN FEET. 1 '= 200'
LICENSE / C-2710
ENGINEERING
LAND PLANNING
;OMMERCIAL / RESIDEA
P.O. BOX 4041
WILMINGTON, NC 28406
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PROJECT NO.: 06-0134
Sheet No. Of

STRUCTURE
AREA
CB2
1.00
CB3
0.82
CB4
1.76
CB5
1.40
CB6
0.70
CB8
1.52
CB9
1.05
CB10
0.67
CB12
1.40
CB13
1.48
CB14
1.54
CB16
2.73
CB17
1.99
CSD
ENGINEERING
LICENSE j C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
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PROJECT NO.: 06-0134
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CSD
ENGINEERING
LICENSE 7f C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WtUINGTON, NC 28406
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PROJECT NO.: 06-0134
100 50 0 100 200 300
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SCALE IN FEET.• 1 "-- 100'
100 50 0 100 200 300
SCALE IN FEET. 1"= 100'
Sheet No. Of - j

OCA TION MAP
NOT TO SCALE
PLANNED EROSION AND SEDIMENT f27ROL PRACTICES -
CE 1. TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
Practice 6.06
SHALL BE INSTALLED AT THE ENTRANCES TO THE PROJECT
FROM AN EXIS7NG ROADWAY. DRAINAGE SHOULD BE AWAY FROM
THE ROAD AND EROSION WILL BE CONTROLLED WITH DOWNSTREAM
PRACTICES DURING WET WEATHER IT MAY BE NECESSARY TO WASH
TRUCK TIRES AT THESE LOCATIONS
2. LAND GRADING
Practice 6.02
GRADING SHOULD BE LIM17ED TO AREAS AS SHOWN ON 714E
PLANS. CUT AND FILL SLOPES SHALL BE 3:1 OR FLATTER EXCEPT
WHERE SPECIFICALLY INDICATED. CARE SHALL BE TAKEN DURING
LAND GRADING ACTIVITIES NOT TO DAMAGE EXIS7NG TREES THAT
ARE IDEN71RED AS 'TO BE PRESERVED'
0 SF J. SEDIMENT FENCE
Practice 6.62
SEDIMENT FENCING SHOULD BE INSTALLED AS SHOWN ON THE
PLAN, TO DELINEATE AND PR07ECT WETLANDS AND SPECIFIED AREAS,
AND AROUND ANY TEMPORARY STOCKPILE AREAS AS NECESSARY TO
PREVENT ANY GRADED INTERIOR AREAS FROM ERODING ONTO ADJACENT
LANDS OR ROADWAY, OR INTO INLETS OR AS DIRECTED BY ENGINEER
OR NEW HANOVER COUNTY EROSION CONTROL PERSONNEL.
0 GC 4. GRASS -LINED CHANNELS
PRACTICE 6.30
ALL OVERFLOW SWALES TO BE GRADED TO DESIGN
CONFIGURATION,LINED WITH CEN71PEDE SOD, TO COLLECT AND
CONVEY SITE WATER AS SHOWN ON PLAN. AFTER FINAL PROJECT
STABILIZATION, SWALES TO BE RE -GRADED, CLEANED OF
SILTA77ON AND LINED W1774 CEN77PEDE SOD TO ESTABLISH
ORIGINAL DESIGN CONTOURS FOR STORMWATER CONVEYANCE.
5. CONSIRUC77ON ROAD STABILIZA71ON
PRAC77CE 6.80
UPON REACHING FINAL GRADE AND AFTER U77LI71ES HAVE
BEEN INSTALLED, ROADWAY/PARKING AREAS ARE TO BE
STABILIZED BY PLACING SUB -BASE AS SHOWN IN THE TYPICAL
STREET CROSS-SEC71ON DETAIL ON THE PLAN, TO REDUCE
EROSION AND DUST DURING THE REMAINDER OF BUILDING
CONSTRUCTION.
SB 6. SEDIMENT BASIN
PRACTICE 6.61
THE SEDIMENT BASIN IS TO BE CONSTRUCTED FIRST (SEE
CONSTRUCTION SCHEDULE) AND IS THE PRIMARY PRAC710E TO
PREVENT SEDIMENT FROM LEAVING THE SI7E DETAILED DESIGN AND
SPILLWAY CONFIGURA71ONS ARE SPECIFIED IN THE DETAIL SHEET.
SK 7. SKIMMER
PRACTICE 6.64
A SEDIMENTATION BASIN DEW47ERING CONTROL DEVICE 774AT WITHDRAWS
WATER FROM THE BASINS WATER SURFACE, THUS REMOVING THE HIGHEST QUALITY
WATER FOR DELIVERY TO 7HE UNCONTROLLED ENVIRONMENT.
TD 8. TEMPORARY DIVERSIONS
PRACTICE 6.20
A TEMPORARY RIDGE OR EXCAVATED CHANNEL OR
COMBINA71ON RIDGE AND CHANNEL CONSTRUCTED ACROSS
SLOPING LAND ON A PRE- DETERMINED GRADE TO
PROTECT WORK AREAS FROM UPSLOPE RUNOFF AND TO
DIVERT SEDIMENT -LADEN WATER TO APPROPRIA7E TRAPS
OR STABLE OUTLETS.
B F 9. BAFFLE
PRAC77CE 6.65
A POROUR BARRIER INSTALLED INSIDE A TEMPORARY SEDIMENT TRAP,
SKIMMER BASIN OR SEDIMENT BASIN TO REDUCE THE VELOCITY AND
TURBULENCE OF WATER FLOWING THROUGH THE MEASURE AND TO FACILITATE
714E SETTLING OF SEDIMENT FROM WATER BEFORE DISCHARGE.
OP 10. OUTLET STABILIZA7ION
PRAC710E 6.41
RIPRAP APRONS WILL BE LOCATED AT THE DOWNSTREAM END OF
ALL DISCHARGE PIPES TO PREVENT SCOUR.
TP 11. TREE PR07EC17ON
PRAC710E 6.05
RESTRICT ACCESS TO 7PZ WITH TALL BRIGHT PR07EC71VE FENCING ON
AREAS INDICATED ON PLAN.
LEGEND
- -
EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINA TION
,14A---_MOM
EXISTING CULVERT
CE F171;�;j
CONSTRUCTION ENTRANCE
SF X X
SIL T FENCE
-
PROPOSED CUL VERT
TD FD-1]-----pw-
TEMPORARY DIVERSION
BF )(
BAFFLES
Op
OUTLET PROTECTION
CI.N07E WELL:
SOIL STABILIZA7ION 7IMEFRAMES
I v 11 11
EC2
F
S17F AREA DESCRIP71ON
STABILIZATION
TIMEFRAME EXCEP77ONS
PERIMETER DIKES,SWALES
7 DAYS
NONE
DITCHES AND SLOPES
HIGH QUALITY ZONES(HOW)
7 DAYS
NONE
SLOPES STEEPER THAN 3:1
7 DAYS
IF SLOPES ARE 10 FT OR LESS IN LENGTH
AND ARE ARE NOT STEEPER THAN 2: 1,
14 DAYS ARE ALLOWED
SLOPES 3.• 1 OR FLA TIER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50 FT IN LENGTH
ALL OTHER AREAS W11H SLOPES
14 DAYS
NONE, EXCEPT FOR PERIMETER AND
FLATTER THAN 4.1 1
HQW ZONES
2. DENUDED AREAS MUST BE STABILIZED WITHIN FIFTEEN (15) WORKING
DAYS OF CEASE OF ANY PHASE OF ACTIVITY. ALL SLOPES MUST BE
STABILIZED WITHIN TWENTY-ONE (21) CALENDAR DAYS OF CEASE OF A'JY
PHASE OF AC77W Y. THIS INCLUDES SLOPES, SWALES, CHANNELS AND
STOCKPILES.
3. THIS PLAN TO BE U71UZED AND REVIEWED ONLY IN CONJUNC71ON
WITH THE WRITTEN NARRATIVE, WHICH IS AN INTEGRAL PART OF
THIS EROSION AND SEDIMENT CONTROL PLAN.
?. ALL SLOPES SHALL BE 3.1 OR FLATTER.
5. 2.42 ACRES OF WETLANDS ON SITE
6. BOUNDARY SURVEY PERFORMED BY SOUTHWIND SURVEYING
Z TOPOGRAPHIC SURVEY PERFORMED BY CAROLINA RESOURCES MAPPING WITH SUPPLEMENTARY
TOPOGRAPHIC INFORMATION PERFORMED BY BASELINE SURVEYING.
8. ELEVA77ON DATUM: NAVD 88
9. ALL SWALES TO BE LINED WITH EXCELSIOR MATTING OR EQUAL.
la ALL EXIS7NG CULVERTS TO BE REMOVED EXCEPT FOR SH1-SH3.
11. LOTS 154-196 WILL ONLY BE FOR ROUGH GRADING. NO FINAL ROAD DESIGN HAS BEEN
COMPLETED. ONCE DESIGN IS FINALIZED A REVISION TO THE EROSION CONTROL PERMIT
WILL BE SUBMITTED FOR APPROVAL.
12 DEVELOPER/HOA ARE RESPONSIBLE FOR MAINTENANCE OF THE STORMWATER SYSTEM.
I
EC4
�• f
EX. CULVERT TO REMAI ""
FUTURE
1
I �2 sia� 1 1
MANASSAS DRIVE Manassas Drive EC6--�
PROPERTY OWNER CERTIFICATION:
"I HEREBY CERTIFY THAT I AM THE CURRENT OWNER OF THE PROPERTY AND THAT
UPON RECEIPT OF "AUTHORIZATION-TO-CONSTRUCT"ANY CLEARING, GRADING, CONSTRUCTION
OR DEVELOPMENT, WILL BE PERFORMED IN ACCORDANCE WITH THIS PLAN AND THAT THE
APPLICABLE ORDINANCES AND RULES OF NEW HANOVER COUNTY, THE STATE OF NORTH
CAROLINA AND THE FEDERAL GOVERNMENT AND ITS AGENCIES WHICH ARE HEREBY MADE
PART OF THIS PLAN. AS THE OWNER, I ACCEPT FULL RESPONSIBILITY FOR THE CONSTRUCTION
AND OPERATION AND MAINTENANCE OF THE PROPOSED FACILITIES. I WILL NOT ATTEMPT TO
TRANSFER THIS RESPONSIBILITY WITHOUT THE WRITTEN AUTHORIZATION OF NEW HANOVER COUNTY.
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
0 OAF
- 5% "1
MATCHLINE THIS SHEET
EC2
DESIGNER'S PLAN CERTIFICATION:
"I HEREBY CERTIFY THAT THIS PLAN HAS BEEN PREPARED IN ACCORDANCE WITH
THE LATEST NEW HANOVER COUNTY ORDINANCES AND STORMWATER DESIGN MANUAL."
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
REGISTRATION NUMBER:
CONSTRUCTION SCHEDULE -
I. OBTAIN APPROVAL OF PLAN AND ANY NECESSARY PERMI75, AND HOLD
A PRE -CONSTRUCTION CONFERENCE PRIOR TO COMMENCING ANY WORK.
2 FLAG WORK LIM17S AND STAKE -OUT ROW, TEMPORARY DIVERSIONS AND SED. BASINS
FOR PRELIMINARY GRADING.
3 INSTALL GRAVEL CONSTRUCTION ENTRANCES
4. INSTALL SILT FENCING PRIOR TO ROUGH GRADING THE REMAINING
SITE AND ANY STOCKPILING OF MATERIAL AND TOPSOIL NECESSARY.
5. CONSTRUCT SWALES, GRASS LINED CHANNELS, SEDIMENT BASINS
AND ANY 07HER SEDIMENT CONTROL PRAC7ICES SHOWN, PRIOR TO
ROUGH GRADING ROADWAYS AND SITE, STOCKPILING TOPSOIL AS NECESSARY.
6. UNDER CUT ROW FOR SWEETGUM DRIVE AND CANOPY WAY SO LOTS WILL DRAIN
TO ROW AND SWALES
7. ESTABLISH ROUGH ROAD GRADES
AND STABILIZE ROAD 107H TEMPORARY OR PERMANENT SEEDING
8. ALL EROSION AND SEDIMENT CONTROL PRACTICES ARE TO BE
INSPECTED WEEKLY AND AFTER ANY RAINFALL, AND REPAIRED AS
NECESSARY.
9. SUBMITTAL AND APPROVAL OF A FINAL DESIGN PLAN IS REQUIRED BEFORE ANY IMPERVIOUS
MATERIAL CAN BE INSTALLED.
MAINTENANCE PLAN -
1. ALL MEASURES TO BE INSPECTED WEEKLY AND AFTER ANY RAINFALL
EVENT AND NEEDED REPAIRS MADE IMMEDIATELY.
2 SEDIMENT TO BE REMOVED FROM SWALES WHEN THEY ARE APPROXIMATELY
50% FILLED OR SEDIMENT LEVEL IS WITH 1' OF TOP OF DITCH BANK.
J. SEDIMENT TO BE REMOVED FROM BEHIND ANY SILT FENCE AND
INLET PR07ECIION DEVICES WHEN IT BECOMES 0.5' DEEP. FENCNG
AND INLET PROIEC71ON TO BE REPAIRED AS NEEDED TO MAINTAIN A BARRIER.
4. ALL SEEDED AREAS SHALL BE FERTILIZED, MULCHED AND RE -SEEDED
AS NECESSARY, ACCORDING TO SPECIFICA77ONS PROVIDED, TO
MAINTAIN A SUITABLE VEGETA7IVE COVER.
5. CONSTRUCTION ENTRANCE TO BE MAINTAINED IN SUCH A MANNER AS TO
PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION SITE
PERIODIC TOPDRESSING WITH 2-INCH STONE MAY BE REQUIRED.
INSPECT AFTER EACH RAINFALL AND IMMEDIATELY REMOVE ALL
OBJEC77ONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO
PUBLIC ROADWAYS.
6. INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH
SIGNIFICANT (ONE-HALF INCH OR GREATER) RAINFALL EVENT AND REPAIR
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO 17S ORIGINAL
DIMENSIONS WHEN SEDIMENT ACCUMULATES TO ONE-HALF THE HEIGHT OF
THE FIRST BAFFLE. PULL THE SKIMMER TO ONE SIDE SO THAT THE SEDIMENT
UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE SEDIMENT FROM THE
EN71RE BASIN, NOT JUST AROUND THE SKIMMER OR THE FIRST CELL MAKE
SURE VEGETA77ON GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD
DOWN THE SKIMMER. SEDIMENT TO BE REMOVED FROM SEDIMENT BASINS
WHEN A MINIMUM OF 50% OF VOLUME HAS BEEN FILLED.
REFER TO CHART FOR BASIN DEPTHS
7. IF SKIMMER IS CLOGGED WITH TRASH AND 774ERE IS WATER IN THE BASIN, USUALLY JERKING ON THE
ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND DISLODGE THE DEBRIS AND RESTORE FLOW.
IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF BASIN AND REMOVE 774E
DEBRIS ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED. IF SO REMOVE
THE DEBRIS
8. REMOVE SEDIMENT FROM BEHIND BAFFLES ONCE ACCUMULATION HAS REACHED
V2 HEIGHT OF THE FIRST BAFFLE. REPLACE BAFFLE PROMPTLY IF THEY COLLAPSE
TEAR, DECOMPOSE OR BECOME INEFFECTIVE
9. REFER TO NC LOS EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN
MANUAL' FOR ADD177ONAL MAINTENANCE REQUIREMENTS FOR EACH EROSION
CONTROL DEVICE.
VEGETATIVE PLAN -
1. PERMANENT VEGETATION TO BE ESTABLISHED IN ACCORDANCE WITH
NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL', SECTION 6.11, LATEST VERSION.
EXISTING TREE
I �
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PROTECTIVE I --r-HEIGHT ABOVE
BARRIER ; J I GRADE
r�
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NOTE:
TREES TO BE SAVED WILL BE CLEARLY MARKED PRIOR TO CONSTRUCTION AND A
PROTECTIVE BARRIER IS TO BE INSTALLED AT THE DRIPLINE.
DRIP LINE - THE AREA OF SOIL DIRECTLY BENEATH THE TREE EXTENDING OUT TO
THE TIPS OF THE OUTERMOST BRANCHES.
TP TREE PROTECTION DURING CONSTRUCTION
SD 15-08
NOT TO SCALE
GA�tN �� h3 h1
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BY: _5A 1
I�0 50 100 200 300
SCALE IN FEET.- 1 "= 100'
CmOSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL,
P.O. BOX 4041
WILM/NGTON, NC 28406
(910) 791- 4441
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DATE: 12-17-15
HORZ. SCALE 1" = 200'
VERT. SCALE.- N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
EC1sw EC12
Sheet No. Of

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/ ADS N-12 R E UI V. — �� 162E
PH CB12
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11 h INV. OUT 17.20 (E 30") l oa��ti
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ADS N-12 OR EQUI V
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LEGEND
EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINA TION
=- EXISTING CULVERT
CE CONSTRUCTION ENTRANCE
SF X X SILT FENCE
PROPOSED CULVERT
TD TD-1 -/m- TEMPORARY DIVERSION
BF )( BAFFLES I VIE
OP OUTLET PROTECTION
50 25 0 50 100 150
SCALE IN FEET.• 1 "= 50'
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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025453
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DA TE.• 12-17-15
HORZ. SCALE: 1" = 100'
VERT. SCALE: N/A
DRAWN BY- RL W
CHECKED B K HSR
PROJECT NO.: 06-0134
EC35W EC12
Sheet No. Of

LEGEND MATCH LINE SEE SHEET EC3
/
EXISTING BOUNDARY r! I !If
gt
PHASE LINE + 1 I20 I I 25 _ 2� IP J
NO WETLANDS DETERMINATION �I of 134 LF 24" DOUBLE WALL HDPE TG = 22.80 —
I ADS N-12 OR EQUIV. I I INV. OUT 1 &50 (S - 24-)
STOCKPILE LOCAAON 25
EXISTING CULVERT / P2-CB6 111 I I I 10
TG = 23.10 I
000NSTRUCTION ENTRANCE / i S T INV. OUT 1&50 (E - 24") IP I 110 D. 133 LF 24" DOUBLE WALL HDPE I
sF !` — 10 I
X X SILT FENCE I I ADS N-12 OR EQUIV. sroCKPaE LOCAnoN
Y
�;� S ! I 10
25 PROPOSED CUL VERT ( I —� p I I 1 0 I 20 FT
I
TD TD-1 TEMPORARY DIVERSION
I � 1025
� I o.
/�
`, i` `� / 97 — _ o _ Q — I P2-CB10 I VI I
143 LF 24 DOUBLE WALL HDPE 2 I O 2 I
TG = 23.50 10 �
BFX BAFFLES I ADS N-12 OR EQUIV. S l 98 I INV. IN 17.70 (E - 24") 133 LF 24" DOUBLE WALL HDPE
I
pp IN 1 Z70 (N - 24 IN
OUTLET PROTECTION gg V. ")
O j I I' P2-CB3 20 I O " _ ADS N-12 OR EQUIV.
TG = 23.00 100 INV. OUT 17.70 (S - 30) i
`.
INV. IN 17.70 (N - 24) I of � I � ! — � � IP
�`� 1 INV. IN 17.70 W - 24" 1 181 LF 30" DOUBLE WALL HDPE 1�2� — l . r
�� ( ) I ��
S INV. OUT 17.70 (S - 30") ADS N-12 OR EQUIV. — `
♦ /
! i
s 2
0� P2_ CB13 f;t,
10
O ,: -♦ ,♦ - 25 TG = 22.90
/ w
3
INV OUT 18 50 - 2 ! I (W 4")
-
I ;
I
_
r
A
_
_
2 1 1 F WALL HDPE
_
8 L 30 DOUBLE
.lourI
­71_ - ♦ -. X — — N-12 OR Q IV. 5
♦ S�
!
=t
J
a t
. . .. ........ ........ ....
_u 10 '
T �� -24
ICv
r
V
P — -.
r ♦ '' TG 22 50 IP
_ 45 EAF WAY
_ IVATE , I
' J' cnl per, I INV. IN 1 T° 10 (N - 30") I 24 — ROW 23
N -r A
�� / L ! ; o INV. OUT 1 i.10 (S - 36) 75
I
k0
j
4� r
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r,1'
I
12
flt II
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,
:
1
! I 20I
I '' S If89
158 LF 36" DOUBLE WALL HDPE �E I I I P2-CB9 IP I 12
T!I — 07 Z/1 I _ '•� t �' �`
I.I 1 92 1 I HUJ IV — IL UR r_wuIv. I I /
i T I I _ _ N 76 1 I INV. IN 17.10 (N - 30") r x tr'J
�� 93 I ! 2S ET INV. OUT 17.10 (S - 36
1 / N N I ! 94 _ _ O � �
I _ _ P2 JB1 I I
,.' co ! _ 1 95 RIM = 23.50
l t' O I ! - A I 74 i D.
146 LF 36" DOUBLE WALL HDPE I I N ge� N
INV. IN 16.60 (N 36) I I
;R IV �x I I N ,INV. (SE - 48") 73 I ADS N-1 2 0 EQUIV.
N
!1
36 E WALL HDPE I
ADS N-12 OR EQUIV. " O D.E. 69 I f
P — _ i 1 71 RIM B 50
3
LE WALL HDPE A N 3
ADS N-1
I (
I INV. IN 17.60 E - 24
�r I _ l 0 4? O _ INV. IN 16.60 N - 36" _
_ I TG=_22.90 4"I �I INV. OUT 16.60 (SW - 48
x
4 LACI( AS BE _ INV. OUT 18.00 (E 24") � I t PH2-OUT -ALL 1 133 LF 24" DOUBLE WALL HDPE
e,,. - .�, 4f r; — 5 y ND I I
f FT PR i( 169 LF 24" DOUBLE WALL HDPE 78 I ry a QUIV. 130
ADS N-12 OR E
ADS N-12 OR EQUIV. I PH — 1 ` STOCKPILE LocA71ON
r`t'
I IP
IP - PH2-OUTFACE 2 I 11r
�
�.
T I P2-C817 I' � � 2� _ 68 — x
'1 t
I
,l " TG = 22.40 - /� Il
t i
z r 24 -
' �� INV. 0 T 18.50 (S - 24") ° _- I �' � � , 79 �� P2 CB8
r I 90
f � I 1 _ _ � � TG = 22. r
r�
I
S f1 N I I 1 ��120 � `--- � � � ,t. I INV. OUT 18.00 (W - 24-) I 13126
168 LF 24 DOUBLE WALL HDPE of
!�
tj;
5 ADS N-12 OR EQUIV• ' % ! 67 25
I _1
I J i 88
8I 1 N
`�80
13
POND 28
SEDIMENT BASIN 5 66t T EC8A FOR DETAIL)°� 3 SEESHEE
/ '82 r� f
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f j
PH2-OUIFALL 5 81I _ 25 I 13f1
26 I IF/ /i ,
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I 65
II7 I PH2-OU7FALL 4 1 171 LF 24 DOUBLE WALL HDPE
ADS N-12 OR EQUIV.
tr SJ,B — ov!
INSTALL JUTE MATTING ;rsr) ���� POND 2A
FOR BANK STABILIZATION �'�' SEDIMENT BASIN 5
WHEREVER EXISTING DITCH SHEET ECBA FOR DETAIL)
HAS BEEN DISTURBED ( S X PH2-OUTFALL 3 I 25
SEE DETAIL SHEET EC9 1 (3) 203 LF 36"
AD�UNL 12 OR EQ��V. p I
P2-CB14
64 TG - 22.30
I P
INSTALL SF ALONG TOP OF PIPE A
® INV. OUT 18.00 (W - 24)
102 LF 24" DOUBLE WALL H
EX. CULVERT TO BE RDPE I w � lI
EMovED _ ADS N-12 OR EQUIV.
_
INSTALL SF ALONG TOP OF PIPE ,� � —
�„
INSTALL SF ALONG TOP OF PIPE �I �, * ACOE APPROVAL PENDING
,. I 13 X
,USACE SECTION 404 WETLANDS WERE DELINEATED
S
/ \ RIM = 23.001 _
EX. CULVERT TO BE REMOVED 59 INV. IN 1&00 S - 24"
BY MR. DAND SClBEITA WI1H SOUTHERN �' ( )
INV. OUT 18.00 (N - 24
.............
_ INSTALL JUTE MATTINGy y ENVIRONMENTAL GROUP,INC ON 11-16-16 N ] 25FOR BANK STABILIZA71ON
1'
HAS BEEN DISTURBED
WHEREVER EXISTING DITCH „ AND VERIFI® BY MR. KYLE DAHL, USACE PROJECT MANAGER >w �
SEE DETAIL SHEET EC9 ON THAT SAME DATE `
/ 58 N O I20 ll I
'
13 /`
_n
F I
r-� IUTILITYTD-
EASEMENT \� 0E I 62 i I
TEMP. WETLANDS IMPACT PART OF - - r
7 \ 143 LF 24" DOUBLE WALL HDPE
ACOE APPROVAL 1 — ;<
ADS N-12 OR EQUIV. I I
S�.--q
S ,, ,� _ _ I _ _ 1 I AI
I
r
r I I _
I
INSTALL JUTE MATTING
FOR BANK STABILIZATION ��_— = ,.
/ L4
WHEREVER EXISTING DITCH' I I 13
HAS BEEN DISTURBED _ I i`
I
SEE DETAIL SHEET EC9 ,1 S SWALE 1 TO CONNECT S RIM 22 50
E -- '� V `� � P2 C816 �
�
i
TO S85 UNTIL UPSTREAM AREA - 18. - 24")
• OF SWALE 1 IS STABILZIED
INV OUT 50 (N
--,,THEN SWALE IS 1 IS TO BE CONNECTED TO S _ IETSHR I P r 1 I it
�siINc DITCH TO THE SOUTH WEST. 45 C91 �- 2
S — — PR/VABE R RT
11 POND 3A INSTALL JUTE MATTING — ROW
ENT BASIN 2 \` . \ FOR BANK STABILIZATION S O
SEDIMENT WERE EXISTING DITCH J
(SEE SHEET E08B FOR DETAIL - HAS BEEN DISTURBED MATCH LINE SEE SHEET EC7
1` SEE DETAIL SHEET E09 SWALE 1
UTILITY EASEMENT
POND 3A OUTFALL POND 2 OUTFALL
�.
(2) 24- HDPE (2) 30A HDPE
INV. EL = 18.7 INV. EL = 18.7
F.E.S. W1 15 CY CL II RIP RAP F.E.S. W1 4 CY CL 11 RIP RAP 50 25 0 50 100 150
O B INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK
MATCH LINE SEE SHEET EC6 DO NOT DISTURB ANY PART OF THE FLOW DO NOT DISTURB ANY PART OF THE ROW
LINE IN BASE OF EXISTING CREEK BED LINE IN BASE OF EXISTING CREEK BED SCALE IN FEET. • 1 "= 50'
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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DATE: 12-17-15
HORZ. SCALE: 1" = 100'
VERT. SCALE: N/A
DRA WN B Y.• RL W
CHECKED B Y•• HSR
PROJECT NO.: 06-0134
Sheet NEC& OEC/ 2

LAJ
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TYPICAL WEDGE
CURBING
7 FT
6" HIGHBACK CURB
2,080�
2 OSt
- - - - -
0.1' LOCAL DEPRESSION
_
SID. GRATE & HOOD
BOLT BOXES TOGETHER AND CUT
OUT OPENING BETWEEN THE TWO BOXES
OR PRECAST.
a:
SECTION VIEW
A - TO BE SIZED PER INLET PIPE COMING INTO BOX
BOXES TO MEET NCDOT STD 840.02 REQUIREMENTS.
TO BE USED AT INLET CB1, CB2 AND CB5
DOUBLE INLET
NOT TO SCALE
I1H1111111
HARDWARE19-GAUGE 4' MAX STEEL POST
(114 MESH OPENINGS) F1
;_T7
1 s�rrrf�e;r���o`s�<��e��r�i`%
WASHED STONE/,.��J,000„�rOe�yra�0elra�0,l,�
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POST
HARD WA Kam & GRAVEL
DROP INLET PR07EC
PRACTICE 6.51
NOT TO SCALE
LEGEND
--�
EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINATION
-
EXISTING CULVERT
CE
CONSTRUCTION ENTRANCE
SF )( X
SILT FENCE
PROPOSED CULVERT
TD 1D-1
TEMPORARY DIVERSION
BF---
BAFFLES
pp
OUTLET PROTECTION
50 25 0 50 100 150
SCALE IN FEET. 1 "= 50'
MATCH LINE SEE SHEET EC5
S s _ 2� f 23 SWEETS _
/ WETLANDS
45
UB COURT
\���r a._ FT PRIVATE ROW
\ PUMPSTA71ON AREA TO DRAIN TO ACOE APPROVAL PENDING 1 �.
CAN "Y / CB 3—
S -
\ \ \ 21.8 IE 03-�� \ f 2 1
24 S STOCKPILE LOCATION
24 CY CLASS 11 RIP RAP;, \ - - X I
�"
X 1
;4 — —X s i
12" 12"
SLOPE AWAY FOR
SUPERELEVA 110N
6 1 2 � � � � �� 4"
LOCAL DEPRESSION
AT FLUME
MODIFIED VALLEY
CURBING --
NOT TO SCALE
I
25, I
03� X If
1 — X
EX. CULVERT TO BE REMOVED 44 , SWALE 1 - — X S �
CE
46
1 1 —
SWALE 8, 1
I
\
i 47 -
1x �
�� \ 1 I 48 :, :.1 � I
4 I
S I 19
1
41 23 I
a
CANOPY W YI
�IIP
45 RIVATE ROW h I
I r1
,Irli: •� —
I 1 IP
C83
f ,
'`_ DOUBLE INLETS
EX. CULVERT TO BE REMOVED;'.. / TG = 22.1 ;' C84
/ / IE = 19.1 I I 4 24' DOUkE WALL E ' 1 DOUBLE INLETS
12 ORE I V. 2 4 1 TG = 22.6 17
T I 4 — 1
3 6 IE - 19.9 �
�j
20 FT
i
40 24 D.E. 142 LF 24' DOUBLE WALL HDP J �1
, �� 3 9 I 2S 3 5 20rr
ADS N-12 Of EQUIV.
r� i � 34
/ 103,LF 36' DOUBLE WALLIHOPE , Njjj�;I
ADS1 N-12 OR EQUIV.
3 3 I f
{ i n16 200 LF 36' DOUBLE WALL HOPE lj, NJ 25 I
- ADS N-12OR EQUIV. I cu I I
r _ ` -
� � '`; � I ' (� _ .�, cV C82
1 DOUBLE INLETS
TG=22.6
..� IE = 19.9
41 LF 48' DOUBLE WALL HDPE '�1 B __
z ( ADS N-12 OR EQUIV. JB1A RIM = 23.5 —
RIM = 23.5 IE = 19.0 -
it IE = 18.7
JBIC _
PIPE IE = 1&5 RIM = 23.5
t
L OUTFALL 1 IE = 19.6 141 LF 24' DOUBLE
WALL
PV
11 f IP
' 9 CY CLASS RIP RAP 12OR EQUI
\ _ . _ I
�t SEE DETAIL SHEET EC6
I ,
t ,
' B FOREBAY APRON_ I
' B 150 CY CLASS If RIP
SEE DETAIL SHEET EC8
- 30 B OUTFALL 2 -
ti WET BASIN 1 2 CY CL 11 RIP RAP
. , SEE DETAIL SHEET EC8 SEE DETAIL SHEET EC6
— —
o (v
1 i - PIPE IE = 19.3
INSTALL JUTE MATTING,_'Vo,
FOR BANK STABILIZATION
WHEREVER EXISTING DITCH
HAS BEEN DISTURBED
.SEE DETAIL SHEET EC9
r Q
POND 1 OUTFALL I �1�;'t0 ;,
27
(3) 24' HDPE I 1
INV.EL=18.8 lF�11,� I U
F.E.S. W/ 2 CY a11 RIP RAP 1 [ 1 1 '; 13 �I� 6 /
INSTALL F.ES IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF THE FLOW
LINE IN BASE OF EXISTING CREEK B®�15
SF
SWALE 8��I
24
' 1 1 1 177 LF 24' DOUBLE WALL HDPE 26
23
20 FT, ADS N-12 OR EQUIV. \
25 11
D.E. CBI
I 1 DOUBLE INLETS .01
i I
TG - 22.6
,IE=191�
/ \ \
fl' � 2
�IVE N p IP Lp i \ X CGUMW
�I �lI �, I — - SWFT PRIVATE RO
5 0
FLOW LINE IE = 18.3-
PIPE IE = 17.3
7 CY CLASS 11 RIP RAP
CULVERT 1-
(2) - 85 LF 54- CLASS N RCP S
FLOW LINE IE = 1&0
PIPE IE = 17.0
10 CY CLASS 9 RIP RAP
X
EXISTING DITCH TO BE RE -GRADED AND LINED
WITH EXCELSIOR MATTING
Y rw
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Y
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INSTALL X7E MATTING `
5 FOR BANK STABIUZA71ON
' --WHEREVER EXISTING DITCH
C E HAS BEEN DISTURBED __ =
INSTALL JU1E MATTING -
SEE DETAIL SHEET EC9
FOR BANK STABILIZATION '!, 4 1 -. ". "=
- ' WHEREVER EXISTING DITCH
HAS BEEN DISTURBED
It -7 _
YFr
Av _
f "
1 <- - - -
, "
_ -
1 J
YJ
"
" _
1
...FLOW LINE IE - 19.0
PIPE IE = 18.0
\ l
ram- / 6 CY CLASS II RIP RAP ' f'
,
}
_ N
I
CULVERT 2
(f (2) - 85 LF 'CLASS IN RCP's
0 09
OCT .
BURIED 1 FT
"
r
1 I FLOW LINE IE = 8.7 Yt
- �. = - B l
-
_- PIPE IE 177 �1: "_-----
_ 10 CY CLASS -
_- RAP
"
"
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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DATE: 11-3-16
HORZ. SCALE: 1" = 100'
VERT. SCALE. N/A
DRA WN B Y.• MRB
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
EC7 EC12
Sheet No. Of

V
I f
I 10 FT
R=15.00'
\,
30 15 0 30 60 90
SCALE IN FEET: 1 30'
NOTES,•
1. TEMPORARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UNTIL SI7E IS PERMANENTLY STABILIZED PER NCOENRAQS
SEDIMENTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
Z GRADE WILL BE 12:1 ONLY IN FRONT OF OUTLET BOX REMAINING SHELF SHOULD BE
6- 1. PP IS THE CENTER OF THE 6:1 SHELF.
3. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES
4. (3) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = &0' SKIMMER WITH 4.2' ORIFICE DIAMETER. TOP OF BOX AT
FAIRCLOTH
SKIMMER
0 WSEL = 19.5
SB
O
3
1
POND BOTTOM
ELEV= 15
6' PVC SCREW PLUG
6' ORIFICE ASSEMBLY
6' CROSS
SKIMMER CONNECTION
TO BE CAPPED ONCE
SKIMMER IS REMOVED
12'
12'
6' CAP TO REMAIN UNTIL SKIMMER
IS REMOVED.
EL= 20.6
FOREBAY 2A-1
EBAY BOTTOM = 1 L=5.93'
5' 1 SIOFSL PEES
L=1
L=22.05' �
R=30.00'
L=1.f0'
R=8A0'
L=3:92'
R=45.00'
4��Oh•
yYr. ylc
A,
ERGENCY SPILLWAY
EL; = 22.0
�.
60, CY CL 11 RIPRAP 1.5 FT DEEP
\�
PLACE NONWOVEN CE07ECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=9.75'
R=5.00'
-OUTLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=Z84'
R=5 00'
{J) 33 LF 36' DOUBLE WALL HOPE
AN71-SEEP COLLAR
SEE DETAIL THIS SHEET
-POND 2 0U7FALL
IE = 1&7
CL B RIP RAP W/ GEOTEX
NONWOVEN FILTER FABRIC
(TO SURROUND ENTIRE
(3) 36' HDPE OUTLET STRUCTURE)
OUTLET PIPE
INV = 19.5 -
1NV = 19.0
2 FT SUMP
FOR CLEANOUT
O$ GROUT•• v
61BASE EL = 15.5
1 j
5EC71ON VIEW
WET BASIN 2A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
FABRICATED GRATE TOP
v.v vnrnL.c noxmUu
PLddJ�E�'
FT
VVLLUcu oriRO,
GALVANIZED, OR
EQUIVALENT
L=0.43'
R=8.00'
Ilk
L=23.56'
R=15.00'
1
L=23.56'
R=15.00'
ICMrURAK ► rUUL CLC VA llVlV = LU. 1 j
VS MUST BE DIRECTED INTO THE STORM WATER SWALES SURFACE AREA 0 ELEV. 20.1 (2A,28,2C) = 177,494 SF
l i! STORAGE 0E1EV 20.1 (2A,28,2C)= 103,146 OF L=23.56'
ISED TO DRAIN POND IN CASE OF EMERGENCY. PUMP TO BE " / R=15.00'
I WITH SCREEN ATTACHED TO HOSE INLET AND COVERED WITH STONE. Il
ACROSS STABLE UPLAND AREA SUFFICIENT TO RESTRAIN EROSION. 1
PERMANENTLY VEGETATIVELY STABILIZED WITH CENTIPEDE GRASS 18 FT
N A DRAINAGE EASEMENT. POND 2B
- BASIN BOTTOM = 15
' L=23 57'
R=15.00'
it
(3) 200 LF 36' HDPE � �' � 308 FT R 20.400'
sl LAY FLAT AT ELEV. 16.5 L=23.56'
1 R=15.00'
L=23.56'
L=4.71' r
R=15.00'
R=3.00'
' � W FOREBAY 2B-1
EBAY BOTTOM = 1
IIE = 16.5
i_
L=9.60 [24- _ HDPE
R=34.00'
L=4.50'
L=21.28'
L=21.28'
L=3.65' R=15.00'
I ! R=10.00' R=15.00 L=25.84' IE = 175
R=15.00'
24' HDPE
WET BASIN 2A & 28
1 " = 30'
WELDED FABRICATED TRASH
RACK W/SQUARE OPENINGS
SQUARE OPENINGS < 6'
T
' HDPE ' HDPE
' HDPE T
T
4-0'
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
4-0'
4-0'
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
6' 1I _ 15'- 0' .5 FT WEIR CUT 20 FT WEIR CUT
0
c
GRAZE PLAN VIEW 6.0' ORIFICE ASSEMBLY
BOX PLAN VIEW
WET BASIN 2A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
0
h
ALL SLOPES
J.I MAXIMUM
(TYPICAL AT ALL STORM OU7FALLS TO POND)
10 FT VARIES
FOREBAY VOLUME
OF REQUIRED ^n PIPE
JIUKAUt, I Tr1UAL V
WSEL = 19.5
RIP RAP 1.5� - S.1 �' SEDIMENT CLEANOUT
3'min. BOTTOM = B ELEV. = SCE
oQ� OUTLET
,ti �o�� NON WOVEN FILTER FABRIC UNDER RIP RAP PR0CPON
AS 7E PLANS
FOREBAY 28-1,2,3: B = 15, SCE = 16
FOREBAY 2A-1 B = 16, SCE = 17
FOREBA Y SECT/ ON DE TA I L
NOT TO SCALE
52 FT TOP OF
EMBANKMENT
ELEVATION = 23.0
'NON IfOn FILTER FABRIC
CLASS II RIPRAP 1.5 FT DEEP 7ERRA IEX N04 OR EQUAL
EMERGENCY SPILL WA Y
FRONT VIEW - BASIN 2A
NOT TO SCALE
NOTE.• COLLAR TO BE POURED AFTER 6'
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
5'
s s
s
d
v
in
MIN
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
VARIES 10' 13 15'
16'
EMBANKMENT TOP= 23.0 (SETTLED), = 2325 (CONSTRUCTED)
EMERGENCY SPILLWAY = 22.0
6 TOP OF GRATE = 20.5
(STATE STORAGE)/ WEIR CUT = 20.1 STATE STORAGE = 103,146 CF
(3) 33 36' HDPE s� NORMAL WSEL= 19.5 (MIDDLE OF 6.1 SHELF) p
IE(OUT) = 18.7 BOTTOM OF 6:1 SHELF EL= 19.0
�\ \ ANTI -SEEP COLLAR, BOTTOM EL= 17.3
IE= 19. -
/�\
BOTTOM SW STRUCTURE EL- 15.5
ANT) -SEEP SEDIMENT CLEANOUT EL. = 16.0
COLLAR, 6 FT WIDE BOTTOM = 15.0
SEE DETAIL 6:1 SHELF % j /�/ ���/% /��x_ s
t 2017
VARIES 33'
BY:
EMBANKMENT SECTION
NOT TO SCALE
COSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(9100) 791-4441
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HORZ, SCALE. • AS N07ED
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DRAWN BY.• RLW
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Shoat ,EC8A_

NOTES:
1. TEMPORARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UNTIL SITE IS PERMANENTLY STABILIZED PER NCDENR/LQS
SEDIMENTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
2 GRADE WILL BE 12:1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
6.1. PP IS THE CENTER OF THE 6.1 SHELF.
3. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES
4. (2) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = 8.0' SKIMMER WITH 4.2' ORIFICE DIAMETER.
FAIRCLOTH
SKIMMER
3
1 F
POND BOTTOM
ELEV= 15
6' PVC SCREW PLUG
6' ORIFICE ASSEMBLY
6' CROSS
SKIMMER CONNECTION
TO BE CAPPED ONCE
SKIMMER IS REMOVED
EL= 20.7
TOP OF BOX AT
ACK OF BOX a= 21.6
`* 11 6 FT WEIR
171 4" EL= 20.2
INV = 19.5
INV = 19.0
!12'
2 FT SUMP
FOR CLEANOUT
12'
I.12'. CONC. f.
OR GROUT a
CL B RIP RAP W/ GEOTEX
NONWOVEN FILTER FABRIC
(TO SURROUND ENTIRE
(2) 24' HDPE OUTLET STRUCTURE)
OUTLET PIPE
6 BASE EL = 15.5
6' CAP TO REMAIN UNTIL SKIMMER SECTION VIEW
IS REMOVED. THEN DRILL 4' HOLE IN CAP
WET BASIN 3A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
FABRICATED GRATE TOP
av vnirn.c n�xmou
SURFACE AREA 0 ELEV. 20.2 3A,3B) = 79,421 SF
STORAGE 0 ELEV 20.2 (3A,3B)= 53,547 CF
FT
WLLULU VAKJ,
GALVANIZED, OR
EQUIVALENT
EL = 1ZO
10 CY CL 11 RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH
FILTER FABRIC UNDER RIPRAP
WET BASIN 3A & 3B
1 " = 30,
73.4 FT TOP OF
EMBANKMENT
ELEVATION = 23.0
'VON WOVEN FILTER FABRIC
CLASS 11 RIPRAP 1.5 FT DEEP TERRATEX N04 OR EQUAL
EMERGENCY SPILL WA Y
FRONT VIEW - BASIN 3A
NOT TO SCALE
SQUARE
6'
LALlnrn cAoninA•M T Anil
4-0'
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
o
10'- 0' �
6.0' ORIFICE ASSEMBL `o
GRATE PLAN VIEW WITH 4' HOLE
BOX PLAN VIEW
WET BASIN 3A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
AP 1.5 FT DEEP
V GE07ECH
VDER RIPRAP
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PERMANENT POOL ELEVATION = 19.5
SURFACE AREA 0 ELEV. 19.5 (MAIN BAY 3A,38 ONLY) = 54,006 SF
SURFACE AREA 0 ELEV. 19.5 (WHOLE POND 3A,35) = 72,790 SF
TEMPORARY POOL ELEVATION = 20.2
SURFACE AREA 0 ELEV. 20.2 3A,38) = 79,421 SF
STORAGE 0 t1EV. 20.2 (3A,3B)= 53,547 CF
ALL SLOPES
3:1 MAXIMUM
(TYPICAL AT
ALL STORM OUTFALLS TO POND)
10 FT
VARIES
FOREBAY VOLUME
OF REQUIRED
OP PIPE
STORAGE, TYPICAL
WSEL = 19.5
RIP RAP 1.5 mi -
4,•T
�
�
SEDIMENT CLEANOUT
3'min. BOTTOM = B ELEV. = SCE
'
OUTLET
mow NON WOVEN FILTER FABRIC UNDER RIP RAP
AS ON PLANS
FOREBAY 38-1: B = 16, SCE = 17
FOREBAY 3B-2-3,: B = 16, SCE = 17
FOREBA Y SECTION
DE TA I L
NOT TO SCALE
4-0'
SEE DETAIL
THIS SHEET
FOR
TRASH RACK
3.0 FT WEIR CUT
(6.0 FT TOTAL)
6
i
LO
NOTE.• COLLAR TO BE POURED AFTER
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
PUTLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GEOTECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
ANTI -SEEP COLLAR
SEE DETAIL THIS SHEET
{2) 20 LF 24' DOUBLE WALL HOPE
POND 3 007FALL
IE = 18.8
EMERGENCY SPILLWAY
EL = 21.6
54 CY CL II RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GEOTECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
J�`
1.5'
MIN
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
VARIES 10' 13 15'
16'
EMBANKMENT TOP= 2J.0 (SETTLED), = 2J.25 (CONSTRUCTED)
BWERGENCY SPILLWAY = 21.6
6. TAP OF GRATE = 20.5
STATE STORAGE WEIR CUT = 20.2 STATE STORAGE = 53,547 CF
(2) 20 24' HDPE ¢� NORMAL WSEL= 19.5 (MIDDLE OF 6:1 SHELF) p
IE(OUT) = 18.8
BOTTOM OF 6.1 SHELF EL= 19.0
ANTI- - SEEP COLLAR BOTTOM EL- 7. 13
IE= 19, L\ BOTTOM SW STRUCTURE EL= 15.5
��
i
ANTI -SEEP /I\ SEDIMENT CLEANOUT EL = 16.0 ....... .
COLLAR, 6 FT WIDE
SEE DETAIL 6.1 SHELF
14'
VARIES 33'
EMBANKMENT SECTION
NOT TO SCALE
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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HORZ. SCALE: AS NOTED
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CHECKED BY: HSR
PROJECT NO.: 06-0134
EC8B EC12
Sheet No. Of

POND 21
SB 5
/ BASIN BOTTOM
/
IE = 16.5
10 CY CL B RIP RAP \
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SWEET GUM DRIVE
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PERMANENT POOL ELEVATION = 19.5
SURFACE AREA 9 ELEV. 19.5 (MAIN BAY 2A, 28, 2C ONLY) = 127,658 SF
SURFACE AREA 0 ELEV. 19.5 (NHOLE POND 2A, 28, 2C) = 165,421 SF �..�
TEMPORARY POOL ELEVATION = 20.1
SURFACE AREA 0 ELEV. 20.1 (2A28,2C) = 177,494 SF
STORAGE 0 ELEV 20.1 (2A,28,2Cj= 103,146 CF
IE = 16.5- r'UIVLJ LD
10 CY CL B RIP RAP SEE SHEET EC8A
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1 NOTES
1. ALL BUILDING ROOF DRAINS MUST BE DIRECTED INTO THE STORM WATER SWALES
_ OR INTO THE STREET.
2 PORTABLE PUMP TO BE USED TO DRAIN POND IN CASE OF EMERGENCY. PUMP TO BE
PLACED ON TOP OF BERM WITH SCREEN ATTACHED TO HOSE INLET AND COVERED WITH STONE
HOSE OUTLET TO DRAIN ACROSS STABLE UPLAND AREA ^SUFFICIENT. TO RESTRAIN EROSION.
WET BASIN 2C
1" = JO'
_
SHORT /EAF WA Y
(3) 355 LF 36- HOPE '
LAY FLAT AT ELEV 16.5
1
72
1
'0'] FL=23.56' _
R=15 00'
WSEL = 19.5
RIP RAP 1.5 min. 6)�
ALL SLOPES
J.1 MAXIMUM
(TYPICAL AT ALL STORM OUTFALLS TO POND)
109 VARIES
FOREBAY VOLUME
OF REQUIRED PIPE
STORAGE, TYPICAL OP
3 min.
" SEDIMENT CLEANOUT
BOTTOM = B ELEV. = SCE
WOVEN FILTER FABRIC UNDER RIP RAP
FOREBAY 2C-1 & 2C-2 B = 15, SCE = 16.0
OUTLET
PROTECTION
AS ON PLANS
FOREBAY SECTION DETAIL
NOT TO SCALE
667'
�9
f
(3) 710 LF 36- HOPE
POND 28 �, LAY FLAT 16.5
EMBANKMENT TOP= 23.0 (SETTLED),
= 2325 (CONSTRUCTED)
EMERGENCY SPILLWAY = 22.0
(STATE STORAGE)/ WEIR CUT = 20.1
NORMAL WSEL= 115 (MIDDLE OF 6.1 SHELF) S7 \ \
BOTTOM OF 6.1 SHELF EL= 19.0
SEDIMENT CLEANOUT EL. = 16.0
�1. DATTAU rl — 1 r. A .......................
EMBANKMENT SECTION POND 2C
NOT TO SCALE
LICENSE / C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDEN
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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HORZ. SCALE. AS NOTED
VERT. SCALE. • N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-01J4
E
EC10sw EC12
Sheet No. Of

LINE TABLE FOR POND 1 DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L34
58.85'
S22'13'25"W
L35
345.23'
N80`07'05"W
L36
105.62'
N66°44'50"W
L37
36.24'
N64*10'11 "W
1-38
43.63'
N83°18'54"W
L39
41.96'
S84'00'21 "W
L40
41.29'
S61 `28'02"W
L41
47.92'
N51 °44'26"W
L42
19.63'
NO3°56'36"E
L43
64.83'
N51'34'46"W
L44
40.00'
S39*44'41 "W
L45
78.84'
S46°21'28"E
L46
40.33'
S39°37'26"E
L47
50.23'
S33°09'09"W
L48
46.36'
S14°58'30"W
L49
46.79'
SO4°03'21 "E
L50
49.62'
S19°51'54"E
L51
48.15'
S42°55'21 "E
L52
39.95'
S55°10'09"E
L53
59.61'
S70°24'08"E
L54
54.55'
S0.8'58'56"W
L55
199.28'
S83°14'10"W
LINE TABLE
TAG
LENGTH
DIRECTION
L56
21.96'
S30`49'24"W
L57
83.64'
S00`00'00"E
L58
89.11'
S11'04'38"E
L59
32.84'
S29°01'40"E
L60
42.99'
S21 °45'33"W
L61
109.01'
S00°27'17"W
L62
40.29'
S61 *00'45"W
L63
39.01'
S12°07'15"E
L64
32.19'
N76°51'23"E
L65
31.44'
S33°20'40"E
L66
77.74'
S27°51'51 "E
L67
285.05'
N77°25'32"E
L68
64.42'
N76°42'29"E
L69
28.61'
S13'08'15"E
L70
50.01'
N75°44'36"E
L71
27.77'
N13°08'15"W
L72
264.33'
N76°42'29"E
L73
84.62'
N73'47'26"E
L74
139.17'
N11 *16'04"E
L75
448.66'
N08'09'56"E
L76
54.87'
N10*57'11 "E
L77
147.24'
N80°19'10"W
LINE TABLE FOR POND 2A, 2B & 2C DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L136
54.98'
N34*52'16"W
L137
100.00'
N06°54'57"E
L138
178.32'
N14`17'05"W
L139
682.90'
N18'01'59"E
L140
63.31'
N67°43'40"W
L141
63.15'
N19°32'55"E
L142
85.48'
S62°38'25"E
L143
126.03'
S72°13'51 "E
L144
70.29'
S18'42'39"W
L145
185.58'
S71 °50'05"E
L146
44.60'
S17'39'22"W
L147
26.89'
S75°14'09"E
L148
423.69'
S79°59'39"E
L149
635.49'
S09`10'37"W
L150
181.14'
N81 °06'07"W
L151
129.52'
N57°46'31 "W
L152
166.14'
S39°36'43"W
L153
370.04'
S80°02'48"E
L154
988.81'
S09`57'46"W
L155
30.00'
S09°57'46"W
L156
319.36'
S10'00'37"W
L157
147.24'
N80*19'10"W
L + + + + + + + + +
+ + + + + + +
+ + + + + + + + +
LINE TABLE
TAG
LENGTH
DIRECTION
L158
28.54'
N22°42'36"W
L159
301.14'
N79°51'39"W
L160
142.35'
N27°42'52"W
L161
109.17'
N12°57'40"E
L162
125.50'
N26°11'11 "W
L164
328.84'
S53°27'18"W
L165
96.26'
N89°27'10"W
L166
100.49'
S50°27'01 "W
L167
179.17'
N43°39'44"W
L168
184.64'
N00°50'51 "W
L169
109.21'
N07°53'12"E
L170
40.26'
N26°14'25"E
L171
103,49'
N10°30'36"E
L173
17.40'
N80°19'03"W
L174
38.56'
N11 °54'40"E
L176
104.80'
N11 °30'34"E
L177
405.34'
S79°26'55"E
L178
55.42'
N10°33'21 "E
L179
110.64'
N78°09'16"W
L180
265.71'
N09°57'30"E
L181
100.25'
S81'43'50"E
L182
136.79'
N12°30'05"E
DRAINAGE AREA FOR NCDEQ
POND SYSTEM 1 (POND 1) = 675,561 SF (15.51 AC)
DRAINAGE AREA FOR NCDEQ
POND SYSTEM 2 (PONDS 2A, 2B & 2C) = 1,852,386 SF (42.52 A
DRAINAGE AREA FOR NCDEQ
POND SYSTEM 3 (PONDS JA & 3B) = 1,066,462 SF (24.48 AC)
LINE TABLE FOR FOND 3A & 3B DRAINAGE AREA
LINE TABLE
TAG
LENGTH
DIRECTION
L34
58.85'
S22°13'25"W
L35
345.23'
N80°07'05"W
L36
105.62'
N66`44'50"W
L37
36.24'
N64°1 O'11 "W
L38
43.63'
N83`18'54"W
L39
41.96'
S84`00'21 "W
L40
41.29'
S61 °28'02"W
L41
47.92'
N51 `44'26"W
L42
19.63'
NO3`56'36"E
L43
64.83'
N51 °34'46"W
L44
40.00'
S39°44'41 "W
L45
78.84'
S46°21'28"E
L46
40.33'
S39°37'26"E
L47
50.23'
S33°09'09"W
L48
46.36'
S14°58'30"W
L49
46.79'
SO4°03'21 "E
L50
49.62'
S19°51'54"E
L51
48.15'
S42°55'21 "E
L52
39.95'
S55°10'09"E
L53
59.61'
S70°24'08"E
L54
54.55'
S08°58'56"W
L55
199.28'
S83"14'10"W
_�--
0
C)
LINE TABLE
TAG
LENGTH
DIRECTION
L56
21.96'
S30°49'24"W
L57
83.64'
S00°00'00"E
L58
89.11'
S11 °04'38"E
L59
32.84'
S29°01'40"E
L60
42.99'
S21'45'33"W
L61
109.01'
S00°27'17"W
L62
40.29'
S61 °00'45"W
L63
39.01'
S12°07'15"E
L64
32.19'
N76°51'23"E
L65
31.44'
S33°20'40"E
L66
77.74'
S27'51'51 "E
L67
285.05'
N77°25'32"E
L68
64.42'
N76'42'29"E
L69
28.61'
S13'08'15"E
L70
50.01'
N75°44'36"E
L71
27.77'
N13°08'15"W
L72
264.33'
N76°42'29"E
L73
84.62'
N73°47'26"E
L74
139.17'
N11 *16'04"E
L75
1 448.66'
N08°09'56"E
L76
54.87'
N10*57'11 "E
L77
147.24'
N80'19'10"W
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
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SCALE: I"
= 200'
I ��0 + + + + + + o S FP 18 2017 DRAWN
To + + + + + + + + 5 E)f`SV� B Y.• RL W
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SCALE IN FEET.- 1 200' Sheet No. 01

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CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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HORZ. SCALE 1 " = 100'
PERT. SCALE.- N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
100 50 I 100 200 300
SCALE IN FEET. 1"= II
Sheet No. Of

FOREBA Y 2A-1 AREA
0
FOREBA Y 2C-1 AREA
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14 14 15
151 15
FOREBA Y 2B - 2 AREA
14 14 14 14 �
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FOREBA Y 2C- 2 AREA
FOREBA Y 2B-3 AREA
FOREBA Y 2B-1 AREA
MATCHLINE A -A
ECEIVE
9E 2 0 11
BY:
100 50 0 100 200 300
SCALE IN FEET. 1 "= 100'
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
14 14 15
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FOREBA Y 2B - 2 AREA
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FOREBA Y 2B-3 AREA
FOREBA Y 2B-1 AREA
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BY:
100 50 0 100 200 300
SCALE IN FEET. 1 "= 100'
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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HOR2. SCALE. • 1 " = 100'
VERT. SCALE. • N/A
DRA WN B Y.• RL W
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PROJECT NO.: 06— 0134
Sheet No. Of

Gii1
33.3 FT
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PERMANENT POOL
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TYP.
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VEGETATIVE
.........
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......
BOTTOM OF VEG. SHELF
FOR 6: 1
SHELF
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WET BASIN 2A & 2B
1 " = 30'
Proposed Plan t Toble
VEGETATIVE PLANTING 6:1 SHELF
Quantity
Symbol
Scientific Name
Common Name
Planting Size
Planting Remarks
Planting Season
1,217
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217
;''
LOBELIA CARDINALIZ
CARDINAL FLOWER
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217
T=
RHYNCHOSPORA COLORATA
STARRUSH WHITETOP
4 CU81C INCH
8' O.C.
SPRING, FALL
O.C. — -ON CENTER" CAL. — "CALIPER AT 6" ABOVE GRADE" GAL. — "GALLON CONTAINER"
PLAN71NGS REQUIRED = 14,502 SF / 200 = 73 X 50 = 3,650 PLANTS REQUIRED
MINIMUM OF 3 DIFFERENT SPECIES REQUIRED
REMAINING POR71ON OF POND ABOVE 6:1 SHELF TO BE PLANIED WITH CENTIPEDE GRASS
FOREBAY BERM TO BE CENTIPEDE GRASS OR LINED WITH RIP RAP
PLANTINGS NOTES:
1. WORK SHALL MEET THE REQUIREMENTS OF ALL LOCAL, STALE, AND FEDERAL GOVERNING CODES, ORDINANCES, LAWS, REGULATIONS, SAFETY
ORDERS AND DIRECTIVES
2. CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING HIMSELFAERSELF FAMILIAR WITH ALL UNDERGROUND UTILITIES, PIPES AND STRUCTURES
CONTRACTOR SHALL TAKE SOLE RESPONSIBILITY FOR ANY COST INCURRED DUE TO DAMAGE OF SAID UTILITIES
J. CONTRACTOR MUST CHECK ALL 97E CONDITIONS PRIOR TO COMMENCING WORK. CONTRACTOR SHALL NOT WILLFULLY PROCEED WITH
CONSTRUCTION AS DESIGNED WHEN IT IS OBNOUS THAT UNKNOWN OBSTRUCTIONS AND/OR GRADE DIFFERENCES EXIST THAT MAY NOT HAVE
BEEN KNOWN DURING DESIGN. SUCH CON0171ONS SHALL BE IMMEDIATELY BROUGHT TO THE ATIEN77ON OF THE ENGINEER. THE CONTRACTOR
SHALL ASSUME FULL RESPONSIBILITY FOR ALL NECESSARY REVISIONS DUE TO FAILURE TO GIVE SUCH N071FICA710N.
4. ALL PLANT QUANTITIES ARE IDENTIFIED BY TYPICAL SYMBOLS REFER TO PLANT LEGEND FOR QUANTITIES PLANT QUANTITIES ARE
APPROXfkA7E AND ARE PROVIDED FOR THE CONVENIENCE OF THE CONTRACTOR. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO C RR
ALL PLANT QUAN7111ES PRIOR TO BIDDING. IN THE EVENT OF DISCREPANCIES IN PLANT COUNT, QUAN7771ES INDICATED BY PLANT SYMBOLS
SMALL PREVAIL.
5. CONIRACTOR SHALL N07IFY DESIGNER IF ANY SPECIRED PLANT MATERIAL IS FOUND TO BE UNAVAILABLE.
6. ALL AREAS NOT WITHIN THE 6.1 SHELF SHALL BE STABILIZED WITH CENTIPEDE GRASS
7. IF ANY OF SPECIFIED PLANTS ARE UNAVAILABLE; CHOOSE A NATIVE ALTERNATIVE FROM LIST ON THIS PAGE.
PLANTINGS FOR 6.1 VEGETA TI SHELF
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX ITNERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE 7URILEHEAD)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS FISTULOSUS (JOE PYE WEED)
- EUPATORIADELPHUS MACULATUS (SPOTIED TRUMPETWEED)
- HIBBISCUS COCCINEUS (SCARLET ROSE MALLOW)
- HIBISCUS LAEVIS (HALBERDLEAF ROSE.MALLOW)
- KOSTELETZKYA VIRGINICA (SEASHORE MALLOW)
- LOBELIA CARDINALIZ (CARDINAL FLO%fER) ECEIVE
- LOBELIA ELONGATA (LONGLEAF LOBELIA)
- LOBELIA 9PHIL171CA (GREAT BLUE LOBELIA)
- RHYNCHOSPORA COLORATA (STARRUSH WHIIETOP)
- SACCHARUM BALDWINII (NARROW PLWMEGRASS) BY.
CwSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
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DA TE• 7-17-17
HORZ. SCALE: 1 " = 30'
VERT. SCALE: N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No. LP 1 Of k-p—J,

• 20 40 .•
o�
6 FT
333 FT
_.___ .............
.............................
TOP OF VEG. SHELF
g
`
PERMANENT POOL
__
........
! BOTTOM OF VEG. SHELF
PLANTINGS FOR 6:1 VEGETA r1 VE SHELF
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX TENERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE TURTLEHEAD)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS FISTULOSUS (JOE PT WEED)
- EUPATORIADELPHUS MACULATUS (SPOTTED 1RUMPETWEED)
- HISBISCUS COCCINEUS (SCARLET ROSE MALLOW)
- HIBISCUS LAEVIS (HALBERDLEAF ROSEMALLOW)
- KOSTELETZKYA VIRGINICA (SEASHORE MALLOW)
- LOBELIA CARDINALIZ (CARDINAL FLOWER)
- LOBELIA ELONGATA (LONGLEAF LOBELIA)
- LOBELIA SIPHILITICA (GREAT BLUE LOBELIA)
- RHYNCHOSPORA COLORATA (STARRUSH WHITETOP)
- SACCHARUM BALDNN11 (NARROW PLUMEGRASS)
M
WET BASIN 3A
I" = 20'
Proposed Plant Table
VEGETATIVE PLANTING 6:1 SHELF
Quantity
Symbol
Scientific Name
Common Name
Planting Size
Planting Remarks
Planting Season
734
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
4 CUBIC INCH
8' O.C.
SPRING, FALL
734
LOBELIA CARDINALIZ
CARDINAL FLOWER
4 CUBIC INCH
8' O.C.
SPRING, FALL
734
RHYNCHOSPORA COLORATA
STARRUSH WHITETOP
4 CUBIC INCH
8' O.C.
j SPRING, FALL
O.C. — "ON CENTER" CAL. — "CALIPER AT 6" ABOVE GRADE" GAL. — "GALLON CONTAINER"
PLANTINGS REQUIRED = 8,717 SF / 200 = 44 X 50 = 2,200 PLANTS REQUIRED
MINIMUM OF 3 DIFFERENT SPECIES REQUIRED
REMAINING PORTION OF POND ABOVE 6:1 SHELF TO BE PLANTED WITH CENTIPEDE GRASS.
FOREBAY BERM TO BE CENTIPEDE GRASS OR LINED WITH RIP RAP
1. KORK SHALL MEET THE REQUIREMENTS OF ALL LOCAL, STATE, AND FEDERAL GOVERNING CODES, ORDINANCES, LAWS, REGULATIONS, SAFETY
ORDERS AND DIRECTIVES
2. CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING HIMSELF/HERSELF FAMILIAR WITH ALL UNDERGROUND UTILITIES, PIPES AND STRUCTURES.
CONTRACTOR SHALL TAKE SOLE RESPONSIBILITY FOR ANY COST INCURRED DUE TO DAMAGE OF SAID UTILITIES
3 CONTRACTOR MUST CHECK ALL SITE CONDITIONS PRIOR TO COMMENCING WORK, CONTRACTOR SHALL NOT WILLFULLY PROCEED WITH
CONSTRUCTION AS DESIGNED WHEN IT IS OBVIOUS THAT UNKNOWN OBSTRUCTIONS AND/OR GRADE DIFFERENCES EXIST THAT MAY NOT HAVE
BEEN KNOWN DURING DESIGN. SUCH CONDITIONS SHALL BE IMMEDIATELY BROUGHT TO THE ATTENTION OF THE ENGINEER. THE CONTRACTOR
SHALL ASSUME FULL RESPONSIBILITY FOR ALL NECESSARY REVISIONS DUE TO FAILURE TO GIVE SUCH NOTIFICATION.
4. ALL PLANT QUANTITIES ARE IDENTIFIED BY TYPICAL SYMBOLS REFER TO PLANT LEGEND FOR QUANTITIES PLANT QUANTITIES ARE
APPROXIMATE AND ARE PROVIDED FOR THE CONVENIENCE OF THE CONTRACTOR. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO CONFIRM
ALL PLANT QUANTITIES PRIOR TO BIDDING. IN THE EVENT OF DISCREPANCIES IN PLANT COUNT, QUAN1177ES INDICATED BY PLANT SYMBOLS
SHALL PREVAIL.
5. CONTRACTOR SHALL NOTIFY DESIGNER IF ANY SPECIFIED PLANT MATERIAL IS FOUND TO BE UNAVAILABLE.
6. ALL AREAS NOT WITHIN THE 6.1 SHELF SHALL BE STABILIZED WITH CENTIPEDE GRASS
7. IF ANY OF SPECIFIED PLANTS ARE UNAVAILABLE, CHOOSE A NATIVE ALTERNATIVE FROM UST ON THIS PAGE.
15 0 30 60 ••
SCALE IN FEET. 1 30'
= 6:1 PLANTED SHELF
WET BASIN 3B
1 " = 30'
ism
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791— 4441
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DA TE.• 9-15-17
HORZ. SCALE.- AS NOTED
VERT. SCALE.- N/A
DRA WN B Y.• MRB
CHECKED BY.- HSR
PROJECT NO.: 06-0734
Sheet No. tp-j of kpj

LOCATION MAP
MATCHLINE THIS SHEET
NOT TO SCALE
PLANNED EROSION AND SEDIMENT CONTROL PRACTICES -
CE 1. TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
Practice 6.06
SHALL BE INSTALLED AT THE ENTRANCES TO THE PROJECT
FROM AN EXISTING ROADWAY. DRAINAGE SHOULD BE AWAY FROM
THE ROAD AND EROSION WILL BE CONTROLLED WITH DOWNSTREAM
PRACTICES DURING WET WEATHER IT MAY BE NECESSARY TO WASH
TRUCK TIRES AT THESE LOCATIONS.
2. LAND GRADING
Practice 6.02
GRADING SHOULD BE LIMITED TO AREAS AS SHOWN ON THE
PLANS. CUT AND FILL SLOPES SHALL BE J.1 OR FA77ER EXCEPT
WHERE SPECIFICALLY INDICATED. CARE SHALL BE TAKEN DURING
LAND GRADING AC7IW77ES NOT TO DAMAGE EXISTING TREES 774AT
ARE IDEN71FIED AS 'TO BE PRESERVED"
SF J. SEDIMENT FENCE
Practice 6.62
SEDIMENT FENCING SHOULD BE INSTALLED AS SHOWN ON THE
PLAN, TO DELINEATE AND PROJECT WETLANDS AND SPECIFIED AREAS,
AND AROUND ANY TEMPORARY STOCKPILE AREAS AS NECESSARY TO
PREVENT ANY GRADED INTERIOR AREAS FROM ERODING ONTO ADJACENT
LANDS OR ROADWAY, OR INTO INLE75 OR AS DIRECTED BY ENGINEER
OR NEW HANOVER COUNTY EROSION CONTROL PERSONNEL
G C 4. GRASS -LINED CHANNELS
PRACTICE 6.30
ALL OVERFLOW SWALES TO BE GRADED TO DESIGN
CONFIGURA77 N,LINED NTH CEN7IPEDE SOD, TO COLLECT AND
CONVEY SI7E WATER AS SHOWN ON PLAN. AFTER FINAL PROJECT
STABILIZA770N, SWALES TO BE RE -GRADED, CLEANED OF
SILTA77ON AND LINED WITH CENTIPEDE SOD TO ESTABLISH
ORIGINAL DESIGN CONTOURS FOR STORMWATER CONVEYANCE.
5. CONSTRUCTION ROAD STABILIZA71ON
PRAC710E 6.80
UPON REACHING FINAL GRADE AND AFTER U11LI71ES HAVE
BEEN INSTALLED, ROADWAY/PARKING AREAS ARE TO BE
STABILIZED BY PLACING SUB -BASE AS SHOWN IN THE TYPICAL
STREET CROSS-SECIION DETAIL ON THE PLAN, TO REDUCE
EROSION AND DUST DURING THE REMAINDER OF BUILDING
CONSTRUCTION,
SB 6. SEDIMENT BASIN
PRAC77CE 6.61
THE SEDIMENT BASIN IS TO BE CONSTRUCTED FIRST (SEE
CONSTRUCTION SCHEDULE) AND IS THE PRIMARY PRAC710E TO
PREVENT SEDIMENT FROM LEAVING THE SITE DETAILED DESIGN AND
SPILLWAY CONFIGURA77ONS ARE SPECIFIED IN THE DETAIL SHEET.
S K 7. SKIMMER
PRAC710E 6.64
A SEDIMENTATION BASIN DEWA7ERING CONTROL DEVICE THAT WIIHDRAWS
WATER FROM THE BASINS WATER SURFACE, THUS REMOVING THE HIGHEST QUALITY
WATER FOR DELIVERY TO 7HE UNCONTROLLED ENVIRONMENT.
TD 8. TEMPORARY DIVERSIONS
PRAC710E 6.20
A TEMPORARY RIDGE OR EXCAVATED CHANNEL OR
COMBINATION RIDGE AND CHANNEL CONSTRUCTED ACROSS
SLOPING LAND ON A PRE- DE7ERMINED GRADE TO
PROTECT WORK AREAS FROM UPSLOPE RUNOFF AND TO
DIVERT SEDIMENT -LADEN WATER TO APPROPRIA7E TRAPS
OR STABLE OUTLETS.
B F 9. BAFFLE
PRAC77CE 6.65
A POROUR BARRIER INSTALLED INSIDE A TEMPORARY SEDIMENT TRAP,
SKIMMER BASIN OR SEDIMENT BASIN TO REDUCE THE VELOCITY AND
7URBULENCE OF WATER FLOWING THROUGH THE MEASURE AND TO FACILITATE
7HE SETTLING OF SEDIMENT FROM WATER BEFORE DISCHARGE.
OP 10. OUILET STABILIZATION
PRAC77CE 6.41
RIPRAP APRONS WILL BE LOCATED AT THE DOWNSTREAM END OF
ALL DISCHARGE PIPES TO PREVENT SCOUR.
TP 11. TREE PR07EC71ON
PRAC710E 6.05
RESTRICT ACCESS TO 7PZ WITH TALL BRIGHT PR07ECIIVE FENCING ON
AREAS INDICATED ON PLAN.
W460 ,91
EXISTING BOUNDARY
PHASE LINE
f /
NO WETLANDS DETERMINATION
----
EXISTING CULVERT
CE 77
CONSTRUCTION ENTRANCE
SF X X
SIL T FENCE
PROPOSED CULVERT
TD F7D-1
TEMPORARY DIVERSION
BF -��
BAFFLES
OP
OUTLET PROTECTION
SITE DATA:
PROJECT AREA
6,028,954 SF or 138.41 AC.t
SOIL TYPE(S)
547,760 SF (12.57 AC) = Kr
976,537 SF (22,41 AC) = PM
397, 719 SF 9.13 AC) = L Y
169,418 SF (3.88 AC) = LE
Z392 SF (0.05 AC) = MU
PHASE 1 LOTS 1-51
ROADS 61,197 SF
SIDEWALKS 8, 733 SF
PUMPSTAT70N 4,716 SF
BUILDINGS 178,500 SF
PHASE 2 L07; 52-141
ROADS 114,095 SF
SIDEWALKS 18,116 SF
FUTURE 15,000 SF
BUILDINGS 315,000 SF
NO IMPERVIOUS PLANNED FOR THIS PHASE
OF GRADING FOR LOTS 154-196
SQUARE FOOTAGE OF DISTURBANCE
767,410 SF ASSOCIATED WITH COMMERCIAL
3,489,553 SF ASSOCIATED NTH SINGLE FAMILY L07S
4,256,963 SF (97.73 AC) TOTAL
N07E WELL
1. SOIL STABILJZA77ON 71MEFRAMES
0
SI7E AREA DESCRIP77ON
STABILIZATION
T7MEFRAME EXCEP71ONS
PERIMETER DIKES,SWALES
7 DAYS
NONE
DITCHES AND SLOPES
HIGH QUALITY ZONES HOW
7 DAYS
NONE
SLOPES STEEPER THAN 3:1
7 DAYS
IF SLOPES ARE 10 FT 01? LESS IN LENGTH
AND ARE ARE NOT STEEPER THAN 2: 1,
14 DAYS ARE ALLOWED
SLOPES 3.-1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50 FT IN LENGTH
ALL OTHER AREAS WITH SLOPES
14 DAYS
NONE, EXCEPT FOR PERIMETER AND
FLATTER THAN 4A
HQW ZONES
2. DENUDED AREAS MUST BE STABILIZED WITHIN FIFTEEN (15) WORKING
DAYS OF CEASE OF ANY PHASE OF ACTIVITY ALL SLOPES MUST BE
STABILIZED WITHIN TWENTY-ONE (21) CALENDAR DAYS OF CEASE OF ANY
PHASE OF AC77WTY. 7HIS INCLUDES SLOPES, SWALES, CHANNELS AND
STOCKPILES
3. THIS PLAN TO BE U7ILIZED AND REVIEWED ONLY IN CONJUNCTION
WITH THE WRITTEN NARRAIIW, WHICH IS AN INTEGRAL PART OF
THIS EROSION AND SEDIMENT CONTROL PLAN.
4. ALL SLOPES SHALL BE 3:1 OR FLATTER.
5. 242 ACRES OF WETLANDS ON SITE.
6. BOUNDARY SURVEY PERFORMED BY SOUTHWIND SURVEYING
7. TOPOGRAPHIC SURVEY PERFORMED BY CAROLINA RESOURCES MAPPING WITH SUPPLEMENTARY
TOPOGRAPHIC INFORMATION PERFORMED BY BASELINE SURVEYING.
8. ELEVA7101V DATUM: NAVD 88
9. ALL SWALES TO BE LINED WIIH EXCELSIOR MATTING OR EQUAL.
la ALL EXISTING CULVERTS TO BE REMOVED EXCEPT FOR SHl-SH3.
11. LOTS 154-196 WILL ONLY BE FOR ROUGH GRADING. NO FINAL ROAD DESIGN HAS BEEN
COMPLETED. ONCE DESIGN IS FINALIZED A REVISION TO THE EROSION CONTROL PERMIT
WILL BE SUBMITTED FOR APPROVAL
12 DEVELOPER/HOA ARE RESPONSIBLE FOR MAINTENANCE OF THE STORMWATER SYSTEM.
MATCHUNE THIS SHEET
EX. CULVERTS TO
MANASSAS DRIIiE Man �ssc s Ori
i.-
PROPERTY OWNER CERTIFICATION:
"I HEREBY CERTIFY THAT I AM THE CURRENT OWNER OF THE PROPERTY AND THAT
UPON RECEIPT OF "AUTHORIZATION-TO-CONSTRUCT"ANY CLEARING, GRADING, CONSTRUCTION
OR DEVELOPMENT, WILL BE PERFORMED IN ACCORDANCE WITH THIS PLAN AND THAT THE
APPLICABLE ORDINANCES AND RULES OF NEW HANOVER COUNTY, THE STATE OF NORTH
CAROLINA AND THE FEDERAL GOVERNMENT AND ITS AGENCIES WHICH ARE HEREBY MADE
PART OF THIS PLAN. AS THE OWNER, I ACCEPT FULL RESPONSIBILITY FOR THE CONSTRUCTION
AND OPERATION AND MAINTENANCE OF THE PROPOSED FACILITIES. I WILL NOT ATTEMPT TO
TRANSFER THIS RESPONSIBILITY WITHOUT THE WRITTEN AUTHORIZATION OF NEW HANOVER COUNTY.
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
DESIGNER'S PLAN CERTIFICATION:
"I HEREBY CERTIFY THAT THIS PLAN HAS BEEN PREPARED IN ACCORDANCE WITH
THE LATEST NEW HANOVER COUNTY ORDINANCES AND STORMWATER DESIGN MANUAL."
SIGNATURE:
PRINTED NAME AND TITLE:
DATE:
REGISTRATION NUMBER:
CONSTRUCTION SCHEDULE -
I. OBTAIN APPROVAL OF PLAN AND ANY NECESSARY PERMITS, AND HOLD
A PRE -CONSTRUCTION CONFERENCE PRIOR TO COMMENCING ANY WORK.
2. FLAG WORK LIMITS AND STAKE -OUT ROW, TEMPORARY DIVERSIONS AND SED, BASINS
FOR PRELIMINARY GRADING.
J. INSTALL GRAVEL CONSTRUCTION ENTRANCES
4. INSTALL SILT FENCING PRIOR TO ROUGH GRADING THE REMAINING
SITE AND ANY STOCKPILING OF MATERIAL AND TOPSOIL NECESSARY.
5. CONSTRUCT SWALES, GRASS LINED CHANNELS, SEDIMENT BASINS
AND ANY OTHER SEDIMENT CONTROL PRACTICES SHOWN, PRIOR TO
ROUGH GRADING ROADWAYS AND S17E, STOCKPILING TOPSOIL AS NECESSARY.
6. UNDER CUT ROW FOR SWEETGUM DRIVE AND CANOPY WAY SO LOTS WILL DRAIN
TO ROW AND SWALES
Z ESTABLISH ROUGH ROAD GRADES
AND STABILIZE ROAD WITH TEMPORARY OR PERMANENT SEEDING
8. ALL EROSION AND SEDIMENT CONTROL PRACTICES ARE TO BE
INSPECTED WEEKLY AND AFTER ANY RAINFALL, AND REPAIRED AS
NECESSARY.
9. SUBMITTAL AND APPROVAL OF A FINAL DESIGN PLAN IS REQUIRED BEFORE ANY IMPERVIOUS
MATERIAL CAN BE INSTALLED.
MAINTENANCE PLAN -
1. ALL MEASURES TO BE INSPECTED WEEKLY AND AFTER ANY RAINFALL
EVENT AND NEEDED REPAIRS MADE IMMEDIATELY.
2. SEDIMENT TO BE REMOVED FROM SWALES WHEN THEY ARE APPROXIMATELY
50% FILLED OR SEDIMENT LEVEL IS WITH 1' OF TOP OF DITCH BANK.
3. SEDIMENT TO BE REMOVED FROM BEHIND ANY SILT FENCE AND
INLET PROTECTION DEVICES WHEN IT BECOMES 0.5' DEEP. FENCING
AND INLET PROTECTION TO BE REPAIRED AS NEEDED TO MAINTAIN A BARRIER.
4. ALL SEEDED AREAS SHALL BE FERTILIZED, MULCHED AND RE -SEEDED
AS NECESSARY, ACCORDING TO SPECIFICATIONS PRbVIDED, TO
MAINTAIN A SUITABLE VEGETATIVE COVER.
5. CONSTRUCTION ENTRANCE TO BE MAINTAINED IN SUCH A MANNER AS TO
PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION 97E
PERIODIC TOPDRESSING WITH 2-INCH STONE MAY BE REQUIRED.
INSPECT AFTER EACH RAINFALL AND IMMEDIATELY REMOVE ALL
OBJEC77ONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO
PUBLIC ROADWAYS.
6. INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH
SIGNIFICANT (ONE-HALF INCH OR GREATER) RAINFALL EVENT AND REPAIR
IMMEDIATELY REMOVE SEDIMENT AND RESTORE THE BASIN TO I7S ORIGINAL
DIMENSIONS WHEN SEDIMENT ACCUMULATES TO ONE-HALF THE HEIGHT OF
THE FIRST BAFFLE. PULL THE SKIMMER TO ONE SIDE SO THAT 7HE SEDIMENT
UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE SEDIMENT FROM THE
ENTIRE BASIN, NOT JUST AROUND 7HE SKIMMER OR THE FIRST CELL MAKE
SURE VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD
DOWN THE SKIMMER. SEDIMENT TO BE REMOVED FROM SEDIMENT BASINS
WHEN A MINIMUM OF 50% OF VOLUME HAS BEEN FILLED.
REFER TO CHART FOR BASIN DEPTHS
7. IF SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING ON THE
ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND DISLODGE THE DEBRIS AND RESTORE FLOW.
IF THIS DOES NOT WORK, PULL 7HE SKIMMER OVER TO THE SIDE OF BASIN AND REMOVE 7HE
DEBRIS ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOrZD. IF SO REMOVE
THE DEBRIS
8. REMOVE SEDIMENT FROM BEHIND BAFFLES ONCE ACCUMULATION HAS REACHED
W1/2 HEIGHT OF THE FIRST BAFFLE, REPLACE BAFFLE PROMPTLY IF THEY COLLAPSE
AR, DECOMPOSE OR BECOME INEFFECTIVE
9. REFER TO NC LQS 'EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN
MANUAL" FOR ADDITIONAL MAINTENANCE REQUIREMENTS FOR EACH EROSION
CONTROL DEVICE
VEGETATIVE PLAN -
1. PERMANENT VEGETAIION TO BE ESTABLISHED IN ACCORDANCE WITH
'NORTH CAROUNA EROSION AND SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL" SEC77ON 6.11, LATEST VERSION.
EXISTING TREE
i
DRIPLINE
I I�
i 3' MIN. STAKE
PROTECTIVE r - �-HEIGHT ABOVE
BARRIER _ ;1� v GRADE
r�
,
NOTE:
TREES TO BE SAVED WILL BE CLEARLY MARKED PRIOR TO CONSTRUCTION AND A
PROTECTIVE BARRIER IS TO BE INSTALLED AT THE DRIPLINE.
DRIP LINE - THE AREA OF SOIL DIRECTLY BENEATH THE TREE EXTENDING OUT TO
THE TIPS OF THE OUTERMOST BRANCHES.
TP TREE PROTECTION DURING CONSTRUCTION
SD 15-08
NOT TO SCALE
100 50 0
11,
ECEIVEM
ice
Cwoo,S6D
ENGINEERING
LICENSE ,f C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
SCAR
70 '.
SEAL P
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DATE. 12-77-75
HORZ. SCALE 1 " = 200'
VERT. SCALE: N/A
DRA WN B Y.• RL W
CHECKED B Y. HSR
PROJECT NO.: 06-0134
200 300
EC 1;i
Sheet No. 0
SCALE SCALE IN FEET: 1 "= 100'

EXISTING DITCH TO BE FILLED IN
EX/S1)NG DITCH TO BE FILL® IN
t 1
1 1
SEDIMENT BASIN 6
(SEE SHEET EC10 FOR DETAIL)
EX. CULVERT TO BE CAPPED
i
►Q
•1� r �. TD_5
Jai r' 11
T
25 11
11
' I1
2S Fj '
cry D.E.
p P2—CB4Ln
/ TG = 22.60""®_-_
IN OUT 18.50 (S — 24") _ _
23 SWEET
i � 45 — M DRIVE �-
?S� iP FT PRIV,q �- ROW
134 LF 24 DOUBLE WALL HDPE 24
I ADS N-12 OR EQUIV. 24 T� _
MATCH LINE ZSHEET EC2
7//
24 �:-1
MATCH UNE SEE SHEET EC5
�X
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25
121
25
25 � � / n 1■�
LEGEND
-- EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINA TION
EXISTING CULVERT
CE` LL.�IJ CONSTRUCTION ENTRANCE
SF X X SILT FENCE
PROPOSED CUL VERT
TD 7TD—-Smm-- TEMPORARY DIVERSION
BFs— .BAFFLES
OP OUTLET PROTECTION
E IVI
( 21?
CmovS*D
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791— 4441
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DATE 12-77-75
HORZ, SCALE.- 1 " = 100'
VERT. SCALE N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No. 1 oEC

LEGEND
--
EXISTING BOUNDARY
PHASE LINE
j
NO WETLANDS DETERMINATION
EXISTING CULVERT
67/;l
CONSTRUCTION ENTRANCE
SF X X
SILT FENCE
PROPOSED CULVERT
TD F-1
TEMPORARY DIVERSION
BF-
BAFFLES
OP
OUTLET PROTECTION
WATCH LINE SEE HT EC3
S© jt
124
1
---25
10
133 LF 24" DOUBLE WALL
ADS N-12 OR EQUIV. 1• 12
Jit
IP fX®I1 �i
` I
P2-CB13 11,
TG = 22.90 I
OUT 18.50 (W - 24") I (12
_ _ x11,
3
I
c'vI x \
12 11
I// I
z - i Q I `
11
I12 �
f 92 I I I INV. IN 1710 (N - 30
l
�I t
T 93 N 76 ?5' I I '
N �� O ' fT INV. OUT 1710 (S - 36") 70 j
I to ,'
1 N 94 P2-JB1 1 I �, s� cv- j
r w _ 1 95 I r RIM 23.50 - I 74 I 146 LF 36 DOUBLE WALL HDPE I I
INV. IN 16.60 N - 36 - O �,
�x I ( ) I ADS N-12 OR EQUIV. r 1 �'(
N -
1' INV. (SE - 48") 73 1 - I �� j 129 x
_ __
tv 77 36 E WALL HDPE 72 I 20 P2-J87
�
P - _ ADS N- 12 OR EQUIV. 1 71 �E 69 RIM 23.50 - I p ��, �I
�50 LE WALL HDPE INV. IN 17.60 (E 24 ),, ADS N-1 _ - I ( ")
INV. IN 16.60 N - 36
r
S -� 2� B �- - 1 TG = 2290 jv� NI
lc J J- LA qS B _ �� INV. OUT 1&00 (E - 24") ! !
H 1�
�` y 1 > �,
45 FT pR/Vq jE R0--'"'`j�169 LF 24" DOUBLE WALL HDPE 78
_ - w 2 I
W i �` _ ? ADS N-12 OR EQUIV.
r_ - IP - - -
P2-CB17 A I
22.40
_- _ i
`� INV. 0 T 18.50 (S-24"") �24-� 79
s " I?oFrl 1 1
l%
168 LF 24" DOUBLE WALL HDPE �pE� r 26
f ADS N-12 OR EQUI 1 V. j 25 1 N
i
88 r
x 11 I
80
- 87
O
86 I I
,, - - l I
A`' 83 - I
�
1 , `_ V-
CIV
I PH2-OUIFALL 5 O
+ 81 '
Ii 26
`S B
IP
I20Fr I 25-P2-CB12-
x � D. E 1 I TG = 22.80
134 LF 24 DOUBLE WALL HDPE „
I I ADS N-12 OR EQUIV. I INV. OUT 1&50 (S - 24 )
STOCKPILE LOCATION 25 I I
P2-CB6i 111
TG = 2310 24') E OUT 1&50
INLE WALL HDPE I
V. - ; 13J LF 24 DOUBLE I
(
IP � I I I
0 ADS N-12 OR EQUIV. LOCA77ON
-- 10
25 I j - I I 10 I 20 Fr
10
P2-CB10 I
I
143 LF 24" DOUBLE WALL HDPE 2 1 O 2 - - TG=-23.50
-
I V. S I INV. IN 17.70 (E 24")
I O - INV. IN 17.70 (N - 24")
ADS N-12 OR EQUI
20 1 99 INV. OUT 17.70 (S - 30')
TG = 23.00
INV. IN 17.70 (N - 24)
INV. IN 17.70 (V - 24") I I 181 LF30' DOUBLE WALL HDPE
OUT 1 INADS N 12 OR EQUI V. 25I I 10
V. 7.70 (S - 30") I f-r 20 FT
I
�- __ 25_ I d.E 1 0
r � � INV.
- O
24
-- d-_ _��� � X � � _- 181 LF 3 - 0" DOUBLE WALL HDPE
`... ._ ._.r _ ... _ , _.
-: --.,
S - - � -25 ADS N 12 OR EQUIV. I
I CO
S r 2S 23
- _ -
f I -
� 6 24
o f P2-CB
S�j _ 45 F �RnEgF w,q y -
+' � TG = 22.50 IP - - T PR/Vq Row -
`. x' �� p, INV. IN 17.10 (N - 30") - 23
( 24 -
I I�7 N,` OQ INV. OUT 17.10(S-36") _ - -
c� 75 J 24.
-
0
- -
I S i 89� r - 20
24
91 P2-CB9 _
11 \ - I 158 LF 36 DOUBLE WALL HDPE I , TG = 22.30 I ADS N 12 OR EQUI V
PH2-OUTFALL 2
PH2-OUTFALL 4
INV. OUT 16.60 (SW - 48")
133 LF 24" DOUBLE WALL HOPE
0 o ADS N-12 OR EQUIV. I 130
- STOCKPILE LOCATION A?
-
IP
i 1
f
' 68
P2-CB8 r
_ TG = 22.90
INV. OUT 18.00 (W - 24")
' x �(f �
25 - 1f
'
I ,.
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t I �f,
S
INSTALL
FOR BANK FOR E MA T I NN © ! ' ' t? POND 2A - I O
WHEREVER EXISTING DITCH �; SEDIMENT BASIN 5 �
HAS BEEN DISTURBED (SEE SHEET ECBA FOR DETAIL)' S " - �( PH2-OUTFALL
SEE DETAIL sHEEr EC9
1 (3) 203 LF 36 DOUBLE WALL HDPE ri - x
\ ADS N-12 OR EQUIV. - O P2-CB14
64 TG = 22.JO IP
INSTALL SF ALONG TOP OF PIPE
INV. OUT 18.00 (W - 24")
s 0 " _
---� 102 LF 24 DOUBLE WALL HDPE ,I
EX. CULVERT TO BE REMOVED y y ADS N-12 OR EQUIV.
WETLANDS K► x IF/ I
INSTALL SF ALONG TOP OF PIPE ..
INSTALL SF ALONG TOP OF PIPE y y ACOE APPROVAL PENDING `
P2-JB15 � 63
S -� r il USACE SECTION 404 WETLANDS WERE DELINEATED RIM = 23.00, r
EX. CULVERT TO BE REMOVED BY MR. DAVTD SCIBETTA, WITH SOUTHERN INV. IN 18.00 (S - 24) 1 r
INSTALL JUTE MATTING4 ENVIRONMENTAL GROUPINC ON 11-16-16 ZZ
INV. OUT 18.00 (N - 24
FOR BANK STABILIZATION
WHEREVER EXISTING DITCH SAND VERIFIED BY MR. KYLE DAHL, USACE PROJECT MANAGER.
HAS BEEN DISTURBED / G N O
i
SEE DETAIL SHEET EC9 ON THAT SAME DATE. 20
TD- 61
UTILITY EASEMENT
TEMP. WETLANDS IMPACT PART OF`"
" T \ 143 LF 24 DOUBLE WALL HDPE I '
S ACOE APPROVAL
ADS N-12 OR EQUIV. I
INSTALL JUTE MATTING \� ' \ �� ��, \ i 24 r
FOR BANK STABILIZATION
WHEREVER EXISTING DITCH
HAS BEEN DISTURBED - -� - 57 ���
P2-CB16
SWALE 1 TO CONNECT
SEE DETAIL SHEET EC9 �,` i !', f22.50CV i�
r TO SB5 UNTIL UPSTREAM AREA ' / I RIM UT( / )
� N 1
SEDIMENT BASIN 2
�- - � � - � ` ,' INV. OUT 18.50 N - 24" � N
OF SWA1f 1 IS STABILZIED l � I P
(SEE SHEET EC9 FOR DETAIL) S i THEN SWALE IS 1 IS TO BE CONNECTED TO S - Lo ( S�VEETSHRUB
N
EXIs11NG DITCH To THE SOUTH WEST. s - ` 45 FT pR/Vq CURT
C 2�
O _ TE ROW 23
\ s s �� 2� ;i (,
B
INSTALL ✓CITE MATTING MATCH LINE SEE SHEET EC7
FOR BANK STABILIZATION SWALE 1
WHEREVER EXISTING DITCH UTILITY EASEMENT
f ; B HAS BEEN DISTURBED
.:. SEE DETAIL SHEET EC9
i
POND 2 OUTFACE
(2) 30' HDPE
INV. EL = 18.7
F.E.S. W1 4 CY a11 RIP RAP 50 25 0 50 100 150
�t: \ INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF THE FLOW SCALE IN FEET: 1 "= 50'
Cmo**SD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WIL MING TON, NC 28406
(910) 791- 4441
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DA TE.• 12-17-15
HORZ. SCALE 1 " = 100'
VERT. SCALE: N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
EC5 ,EC1
Sheet No. O
MATCH LINE SEE SHEET EC6
LINE IN BASE OF Ek1S71NG CREEK BED _

GO
ckc
(000'-- 1--
PC
Q � s
0 0 oQ
m
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W m m=
TYPICAL WEDGE
CURBING 7 FT
6" HIGHBACK CURB
2— 08� — T — — — 0.1' LOCAL DEPRESSION
SID. GRATE & HOOD
81 '
GRATE & HOOD
r6" HIGHBACK CURBING
`EDGE OF PAVEMENT `TYPICAL MV
TYPICAL MV B<—J CURBING
CURBING PLAN VIEW
OFFSET INLET DETAIL
NOT TO SCALE
NOTE.OFFSET INLET DETAIL APPLIES TO SINGLE AND DOUBLE INLETS
BOLT BOXES TOGETHER AND CUT
OUT OPENING BETWEEN THE TWO BOXES
OR PRECAST.
6- 6-
A 6'
6. d
SECTION VIEW
A - TO BE SIZED PER INLET PIPE COMING INTO BOX
BOXES TO MEET NCDOT STD 840.02 REQUIREMENTS.
TO BE USED AT INLET CB1, CB2 AND CB5
DOUBLE INLET
NOT TO SCALE
11 A -..A
IMMEM
LEGEND
-�� EXISTING BOUNDARY
PHASE LINE
NO WETLANDS DETERMINA TION
- EXISTING CULVERT
CE CONSTRUCTION ENTRANCE
SF X X SILT FENCE
PROPOSED CULVERT
TD TD-1 ----jmm.- TEMPORARY DIVERSION
BF- BAFFLES
OP OUTLET PROTECTION
50 25 0 50 100 150
SCALE IN FEET. • 1 "= 50'
MATCH LINE SEE SHEET EC5
' 23
s0 _ — 2� I�` SWEETS.
` WETLANDS i r 45 HRUB SOU - FT PR/VA RT
TERow
GRADE PUMPSTARON AREA TO DRAIN TO �COE APPROVAL PENDING (�� �-
# CANOPY WAY CB 3
o !_
21.81E
�',\A / 24 \ S STOCKPILE LOCATION
\ /
1s 24
24 CY CLASS 11 RIP RAP 55n 54
12" 12"
SLOPE AWAY FOR
SUPERELEVA71ON /
6 1
LOCAL DEPRESSION
AT FLUME
MODIFIED VALLEY
CURBING
NOT TO SCALE
INSTALL JUTE MA71)N
FOR BANK STABIIJZA71ON
WHEREVER EXISnNG DITCH
HAS BEEN DISTU
SEE DETAIL SHEET EC9
POND 1 OUTFALL
(3) 24' HDPE
INV.EL=18.8
F.ES W/ 2 CY CL 11 RIP RAP
INSTALL F.ES. IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF THE FLOW
LINE IN BASE OF EXISTING CREEK BED
FLOW LINE IE = 1&3-
PIPE IE = 17.3
7 CY CLASS 11 RIP RAP
CULVERT 1-
(2) - 85 LF 54' CLASS 111 RCP'S
FLOW LINE lE = 18.0
PIPE IE = IZO
10 CY CLASS II RIP RAP
I
25, I
-
l
J�� 44 O'T� 124 52 1
I
SWALE 1 EX. CULVERT TO BE REMOVED �, � \ I
n�
45 I — CE 141 I1 1 k
I � 1 I
- F II \ \ 46
SWALE 8
I
f 1 x
N I
t 1 i S/ 19
50
' I I — _
1 t
I I-
#' 41 23
\ CANOPY
IP 4 WAY, LAI
-
- 5 FT P `�
\ — R1VA ROW
CB3 I — I P _
I I
DOUBLE INLETS -•
_ I —
EX. CULVERT �0 BE REMOVED � TG = 221
I t IE = 19.1 I I 142 LF 24' DOUALE WALL HDPE I DOUBLE INLETS - -
I ADS N-12 ORE IV 2 I TG = 22.6
36 4 IE = 19.9 I 4
I O I 20 FT O O 2
40 37
24 D.E. 38 142 LF 24' Dbi1BLE WALL HDP
35 34 20 ADS N-12 0� EQUIV.
j,
/V
`
/ 103� 36' DOUBLE WALLIHDPE I BEN 33
AD N-12 OR EQUIV.
y NJ I 25 32
I I 200 LF 36 DbUBLE WALL HDPE N
ADS N-12 EQUIV. I C\4 I
C82
DOUBLE INLETS
TG = 22.6
41 LF 48' DOUBLE WALL HDPE, BIB _ ____._ -
z \BIA RIM = 23.5 IE - 19.9
ADS N-12 OR EQUIV. IE = 19.0
i i I IEM 18.7 5
_ -
t JBIC
PIPE IE = 1&5 RIM = 23.5
' ? , OUTFALL 1 lE = 19.6 141 LF 24'DOUBLE ADS N-12WALL HDPE
OR EQUIV ' IP
9 CY CLASS 9 RIP RAP \ '
SEE DETAIL SHEET EC6 ,._..,
1 I
FOREBAY APRON �' �►= , I
,
150 CY CLASS 1' RIP RAP -�- -
B SEE DETAIL SHEET EC8 '
B OUTFALL 2 - 30
I
WET BASIN 1 _ 2 CY CL 11 RIP RAP
' SEE DETAIL SHEET EC8
SEE DETAIL SHEET EC6
O
1
t
E = 19 3
PIPE 1
c
1
29
REED O
cn y
1
1 1 27
1 12
sf
1 22 1 1 26 I
177 LF 24' DOUBLE WALL HDPE i
1 21 1 20 FT ADS N-12 OR EQUIV \
25 11
D.E. CB1
1 `1 DOUBLE INLETS
L, 2 . -Ile
19.
\�� 1 SUM �RI IP 2� 1 1 10 \ STET ROW \ N
i 5 TE
FT PRIVA _ "" o 1 1 9 1
4 _— 1 \
5
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CSD
ENGINEERING
LICENSE j C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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DATE: 11-3-16
HORZ. SCALE 1" = 100'
VERT. SCALE.- N/A
DRA WN B Y.• MRB
CHECKED BY: HSR
PROJECT NO.: 06-0134
Sheet No.EC7o,�EC1

i
j L=8.01'
R=5.00' L=20.42'
I�.. .�� R=13.00'�
F
ARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
REMAIN IN PLACE UNTIL SI7E IS PERMANENTLY STABILIZED PER NCDENR/LQSNTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
2. GRADE WILL BE 12.1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
6.1. PP IS THE CENTER OF THE 6:1 SHELF.
3. RIP RAP TO BE PLACED AROUND THE PERIMETER OF OUTLET BOXES
4. (3) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = 8.0' SKIMMER W17H 3.5' ORIFICE DIAMETER. TOP OF BOX AT
BACK OF BOX EL= 22.5
FAIRCLOIH
SKIMMER
0 WSEL = 19.5
SB
O
6' PVC SCREW PLUG
6' ORIFICE ASSEMBLY
6' CROSS
SKIMMER CONNECTION
TO BE CAPPED ONCE
SKIMMER IS REMOVED
12'
12'
1 � /
6' CAP TO REMAIN UN71L SKIMMER
IS REMOVED. THEN DRILL 4.5' HOLE IN CAP
POND BOTTOM
ELEV= 15
EL= 20.6
Iry
FOREBAY 2A-1
LZ
OTTOM =
_S
L=22.05'
R=30.00'
L=3.92'
R=45�
AL I&
�Lc �Ylr. �W. L4r. yYc
11� U
AL fir. a0c �Oc >IYc aIL.
AL AL
GENCY SPILLWAY
EL'. = 22.0
60, CY CL 11 RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=9.75'
/
R=5.00'
TLET STRUCTURE
10 CY CL B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
L=7.84'
R=5.00'
{3) 33 LF 36' DOUBLE WALL HOPE
ANT -SEEP COLLAR
SEE DETAIL THIS SHEET
POND 2 OUTFALL
IE = 18.7
Y 7 FT WEIR '\
4" EL= 20.1 �
CL B RIP RAP W/ GE011=X
NONWOVEN FILTER FABRIC
1, (TO SURROUND ENTIRE
(3) 36' HDPE OUTLET STRUCTURE)
OUTLET PIPE
INV = 19.5 -
INV = 19.0
2 FT SUMP
FOR CLEANOUT
OR- CONC.
OUT
OIt � GROUT... • a .
6'BASE EL = 15.5
SECl10N VIEW
v.v vrtmi.c naxmoLI
WET BA SIN 2A 4.5' HOLE DRILLED IN CAP
PLAN VIEW
OUTLET STRUCTURE DETAILS
NOT TO SCALE
FABRICATED GRATE TOP
�& A,
FT
RS,
GALVANIZED, OR
EQUIVALENT
1JL �jk
L=0.43'
R=8.00'
t
i�
t
axle. I �Lc AL, ]tlt
1 " = 30'
WELDED FABRICATED TRASH
RACK W/SQUARE OPENINGS
36' HDPE 'HDPE 'HDPE
SQUARE OPENINGS : 6' 7
0
i
h
0
_I
h
6' - 0-
15'- 0' .5 FT WEIR CUT 2.0 FT WEIR CUT
0
GRATF PLAN VIEW 6.0' ORIFICE ASSEMBLY
4.5' HOLE DRILLED IN CAP
BOX PLAN VIEW
WET BASIN 2A
OUTLET STRUCTURE DETAILS
NOT TO SCALE
4-0'
4-0,
4-0'
SEE DETAIL
SEE DETAIL
SEE DETAIL
THIS SHEET
THIS SHEET
THIS SHEET
FOR
FOR
FOR
TRASH RACK
TRASH RACK
TRASH RACK
cp
s 25 _--25 FT EASEMENT FOR FUTURE CONNECT!
4L;=-2J.
5'
1560
�=23.56'L
LR==2135..5060'' _
rL=23.56'
I
1 R=15.00'
ALL SLOPES
3:1 MAXIMUM
(TYPICAL AT
ALL STORM OUTFALLS TO POND)
10 FT VARIES
FOREBAY VOLUME
OF REQUIRED
STORAGE, TYPICAL
OP pjPE
=
WSEL 19.5
RIP RAP 1.5
SEDIMENT CLEANOUT
3'min. BOTTOM = B ELEV. = SCE
O
OUTLET
NON WOVEN FILTER FABRIC UNDER RIP RAP
AS ON PLANS
,moo
FOREBAY 2B-1,2,3: B = 15, SCE = 16
FOREBAY 2A-1 B = 16, SCE = 17
FOREBA Y SECTION
DE TA I L
NOT TO SCALE
52 FT TOP OF
EMBANKMENT
ELEVATION = 23.0
`NON WOVEN FILTER FABRIC
CLASS II RIPRAP 1.5 FT DEEP 7ERRAIEX N04 OR EQUAL
EMERGENCY SPILL WA Y
FRONT VIEW - BASIN 2A
NOT TO SCALE
L=23 56'
R=15.00'
L=23.56'
R=15.00'
NOTE COLLAR TO BE POURED AFTER 6'
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
s 5' s
s
a
v
MIN
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
VARIES 10' 13 15'
16'
EMBANKMENT TOP= 230 (SETTLED), = 23.25 (CONSTRUCTED)
R
EMERGENCY SPILLWAY = 22.0
TOP OF GRATE = 20.5
STATE STORAGE WEIR CUT = 20.1 STATE STORAGE = 122,791 CF
PE NORMAL WSEL= 19.5 (MIDDLE OF 6.1 SHELF) E7
IE(OUT) = 18.7 BOTTOM OF 6:1 SHELF EL= 19.0
AN77-SEEP COLLAR, BOTTOM EL= IZ3
9. _
BOTTOM SW S1RUCTURE EL 15.5
AN11-SEEP SEDIMENT CLEANOUT TEL = 16.0
COLLAR, 6 FT WIDE BOTTOM EL= 15.0
SEE DETAIL 6:1 SHELF
ECEIVE
VARIES 33' A111, 2017
EMBA NKMEN T SECTION
NOT TO SCALE
CmIOSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WIL MING TON, NC 28406
[phone]
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DA TE: 5-10-17
HORZ. SCALE AS NOTED
VERT. SCALE: N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
,EC8A FC12
Sheet o 0

COiR FIBER BAFFLE MATERIAL PROPERTY REQUIREMENTS
MATERIAL
100% COCONUT FIBER
THICKNESS
0.30 IN MIN.
TENSILE STRENGTH (WET)
900 X 680 LB/FT MIN
ELONGATION (WET)
69% X 34% MAX
FLOW VELOCITY
10-12 FT/SEC
WEIGHT
20 oz/SY (680 G/M^2) MIN
MINIMUM WIDTH
6.5 FT
OPEN AREA 50% MAX
STEEL POST
EARTHEN EMBANKMENT.
OUTLET, CLASS 11
STEEL POST SHOULD BE APPROX 1-3/8' WIDE MEASURED PARALLEL
TO FENCE AND HAVE A MIN. W► IGHT OF 1.25 LB/LINEAR FT AND BE
EQUIPPED WITH AN ANCHOR PLATE WITH MINIMUM AREA OF 14.0 IN^2.
STEEL POST SHOULD BE INSTALLED AT MAX. 4 FT SPACING AND
DRIVEN INTO GROUND MIN. OF 2 FT.
INLET ZONE
25% OF SURFACE AREA
BAFFLE (TYPICAL)
FIRST CHAMBER
259 OF SURFACE AREA
SECOND CHAMBER
25% OF SURFACE AREA
OUTLET ZONE
25% OF SURFACE AREA
BF TEMPORARY BAFFLES
Practice 6.65
NOT TO SCALE
M= 3
VARIES n= 0.03
LINED WITH REINFORCING MATTING AND SEED
PER SPECIRCARONS OR SOD.
SWALES 1-7
0 3: 1
GRASSED CHANNEL
N.T.S
WATER LEVEL
8.5"
END VIEW
BASIN
ORIFICE SIZED DRILLED IN CAP
1
2.6"
2
3.0 "
3
2.4"
4
2.0"
5
3.5"
6
3.2"
•••••••••••••
•••••••••••••
• • 3 i
K CUSTOM SKIMMER DETAIL
Practice 6.64
NOT TO SCALE
- BAFFLES TO BE INSTALLED PER TEMPORARY BAFFLES DETAIL
TOP OF EMBANKMENT EL.
INSTALL POLE
WITH CLEAN OUT
DEPTH MARKED.
CANNOT BE TOP
OF POLE
M� 1
EMERGENCY SPILLWAY EL.
4 FT
IMMER
SEE DETAIL THIS SHEET)
2' 14.0'
3
1l 11 �- 18"
3 1-1
b= 5'
SEE EROSION CONTROL CALCULATIONS FOR
G VELOCITY CALCULATIONS.
TEMPORARY DIVERSION DETAIL
Practice 6.20
NOT TO SCALE
8" HDPE CAP
w/ VENT HOLES
1/2" WOODEN DOWEL (RETAINING FLOAT)
2" REPURPOSED STYROFOAM
FLOAT /8" SINGLE WALL CORRIGATED HDPE
" HDPE TEE
8" HDPE CAP
(SEE CHART FOR ORIFICE SIZE OF HOLED DRILLED IN CAP)
HDPE
TOP OF
BERM
FRONT VIEW
FLEXIBLE RUBBER COUPLING
PLAN VIEW
SEE DENR STANDARDS & SPECS.
FOR COMPLETE DESIGN CRITERIA & MAINTENANCE
AREA
ELEVATIONS
VOLUME
SKIMMER
CLEANOUT
DEPTH (FT)
FROM BOTTOM
SEDIMENT
BASIN {
SURFACE
AREA (SF)
TOP OF EMERGENCY BASIN OUTFALL
BERM SPILLWAY BOTTOM INV EL.
REQUIRED PROVIDED
(CF) (CF)
PIPE ORIFICE
SIZE RADIUS
*1
45,405
23 22.0
19.5
18.8
27,666
38,906
8.0
2.6
1.0
2
24,759
25 24
21.5
21.4
33,048
55,428
8.0
3.0
1.0
3
16,695
26 25
22.5
22.4
16,344
34,520
8.0
2.4
1.0
4
13,162
29 28
26
25.9
6,768
23,718
8.0
2.0
1.0
5
9,504
24 23
21
20.8
11,862
16,704
8.0
3.5
1.0
6
42,287
25 24.5
23
22.8
49,392
58,626
&0
3.2
1.0
*SEE EC8 FOR BASIN DETAIL AND SKIMMER CONNECTION TO OUTLET BOX. BASIN 1 DOESN'T UTILIZE THIS EMBANKMENT CROSS SECTION
SB TEMPORARY SEDIMENT BASIN
EMBANKMENT CROSS SECTION
NOT TO SCALE
I�
1
Construction Road Stabilization
Specification 16.80 - Construction Specifications
1. Clear roadbed and parking areas of oil vegetation, roots and oth
obiectionable material.
2. Ensure that road construction fcllews the natural contours of th terrain if
it is possible.
J. Locate parking areas on ncturahy lat cress if they are available ''eep
grades sufficient for drainage but generally not more than 2 toiX:
4. Provide surface drainage, and divert excess runoff to stable arec by using
water bars or turnouts (References Runoff Control Measures).
5. Keep cuts and Ris at 2:1 or Hotter for safety and stability and' --
facilitate establishment of vegetation and maintenance.
6. Spread a 6-inch course of 'ABC crushed stone evenly over the` ' width of
the road and smooth to avoid depressions.
7. Where seepage areas or seasonally wet areas must be crossed,
subsurface drains or geotextie fobrr'c cloth before placing the aish d stone
(Practice 6.81, Subsurface Drain).
8. Vegetate all roadside drtdtes, cuts, fills and other disturbed area �Y
otherwise appropriately stabilize as soon as grading is complete pe*ences.
Surface Stabilization).
9. Provide appropriate sedrrnent control measures to prevent off -sit,
sedimentation.
Maintenance
Inspect construction roads and porkng areas periodically for conditir o!
surface. Topdress with new gravel as needed. Check road ditches cc, other
seeded areas for erosion and sedimentation after runoff -producing r.(-s
Maintain all vegetation in hedthy, vigorous condition. Sediment-prYw king
areas should be treated immediately.
CE
Temporary Gravel Construction Entrance/Exit
Specification J 6.06 - Construction Specifications
1. Clear the entrance and exit area of oil vegetation, roots and other
objectionable material and properly grade it
2. Place the gravel to the specific grade and dimensions shown on be plans and
smooth if.
J. Provide drainage to carry water to a sediment trap or other suitee outlet.
4. Use geotextile fabrics because they improve stability of the foundatiM in
locations subject to seepage or high water table.
Maintenance
Maintain the gravel pad in a condition to prevent mud or sediment from leaving
the construction site. This may require periodic topdressing with 2-inch stone.
After each rainfall, inspect any structure used to trap sediment and dean it
out as necessary. Immediately remove all objectionable materials spilled,
washed, or tracked onto public roadways.
TemporarySeeddng
Specification 16.10 - Specifications
Complete grading before preparing seedbeds and install all necessary erosion
control practices, such as dikes, waterways and basins. Minimize steep slopes
because they make seedbed preparation difficult and increase the erosion hazard.
If soils become compacted during grading, loosen them to a depth of 6-8 inches
using a ripper, harrow, or chisel plow.
Seedbed Preparation
Good seedbed preparation is essential to successful plant establishment. A good
seedbed is well -pulverized, loose and uniform. Where hydroseeding metit,4s are
used, the surface may be left with a more irregular surface of large clods and
stones.
Liming - Apply lime according to soil test recommendations. If the pit , ,aridity)
of the soil is not known, an application of ground agricultural limestone at the
rate of 1 to 1 1/2 tons/acre on coarse -textured soils and 2-3 tonsla es on
fine -textured soils is usually sufficient Apply limestone uniformly and
incorporate into the top 4-6 inches of soil. So7s with a pH of 6 or higher
need not be r'+med.
Fertilizer- Base application rates on soil tests. When these are not possible,
apply a 10-10-10 grade fertilizer at 700-1,000 1./acre. Both fertilizer and
lime should be incorporated into the top 4-6 inches of soil. If a hydraulic
seeder is used, do not mix seed and fertilizer more than 30 minutes before
application.
Surface roughening- If recent tillage operations have resulted in a loose
surface, additional roughening may not be required except to break up large
clods. If rainfall causes the surface to become sealed or crusted, loosen it
just prior to seeding by disking, raking, harrowing, or other suitable methods,
Groove or furrow slopes steeper than 3.1 on the contour before seeding (Practice
6:03, Surface Roughening),
Plant Selection
Select an appropriate species or species mixture from Table 6.10a, for seeding
in late winter and early spring, Table 6.106 for summer, and Table 6.10c ,or
fall.
Seeding
Evenly apply seed using a cyclone seeder (broadcast), drill, cultipadker seeder,
or hydroseeder. Use seeding rates given in Table 6.10a-6.10c. Broadcast seeding
and hyroseeding are appropriate for steep slopes where equipment cannot be
driven. Hand broadcasting is not recommended because of the difficulty in
achieving a uniform distribution. Small grains should be planted no more than 1
inch deep, and grasses and legumes no more than 1/2 inch. Broadcast seed must
be covered by raking or chain dragging, and then lightly firmed with a roller or
cultipacker. Hydroseeded mixtures should include a wood fiber (cellulose) mulch.
Mulchin
The use of appropriate mulch will help ensure establishment under normal
conditions and is essential to seeding success under harsh site condition
(Practice 6.14, Mulching). Harsh site conditions include.
-seeding in fall for winter cover (wood fiber mulches are not considered
adequate for this use),
-slopes steeper than J. 1,
-excessively hot or dry weather,
-adverse soils(shallow, rocky, or high in day or sand), and
-areas receiving concentrated flow.
If the area to be mulched is subject to concentrated waterflow, as in channels,
anchor mulch with netting (Practice 6.14, Mulching).
Sediment Fence (Silt Fence)
Specification 6.62 - Construction Specifications
MATERIALS
1.Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon,
polyester, or podyethylene yam, which is certified by the manufacturer or
supplier as conforming to the requirements shown in Table 6.62b. Synthetic
fifer fabric should contain ultraviolet ray inhibitors and stabilizers to
provide a mrrimum of 6 months of expected usable construction life at a
temperature range of 0 to 120 F.
2.Ensure that posts for sediment fences are 1.33 Ib/linear ft steel with a
minimum length of 4 ft. Make sure that steel post have projects to facilitate
fostering the fabric.
3.For reinforcement of standard strength filter fabric, use wire fence with a
mnrnum 14 gauge and a maximum mesh spacing of 6 inches.
Table 6.62b
Specifications For Sediment Fence Fabric
Physical .Property Requirements
Filtering Efficiency - 85% (min)
Tensfe Strength at Standard Strength- 30 Ib/lin in (min)
Extra Strength- 50 Ib/lin in (mm)
Slung flow Rate - 0.3 gal/sq ft/min (min)
COti'STRU'C77 N
1.Construct the sediment barrier of standard strength or extra strength
synthetic fiter fabrics.
2Ensure that the height of the sediment fence does not exceed 18 inches above
the ground surface. (Higher fences may impound volumes of water sufficient to
cause foiiure of the structure.)
3.Construct the titer fabric from a continuous roll cut to the length of the
barrier to avoid joints. When joints are necessary, securely fasten the filter
cloth only at a support post with overlap to the next post.
4.Support standard strength filter fabric by wire mesh fastened securely to the
up slope side of the posts using heavy duty wire staples at least 1 inch long,
or tie wires. Extend the wire mesh support to the bottom of th; !-einch.
5. Men a wine mesh support fence is used, space posts a maximum of 8 ft apart.
Support posts should be driven securely into the ground to a minimum of 18
inches.
6.Extra strength fifer fabric with 6ft post spacing does not require wire mesh
support fence. Staple or wire the filter fabric directly to posts.
7.Exca►ate a trench approximately 4 inches wide and 8 inches deep along the
proposed line of posts and upslope from the barrier (figure 6.62a).
8.6adkfil the trench with compacted soil or gravel placed over the titer
fabric.
9.Do not attach filter fabric to existing trees.
Maintenance
Inspect sediment fences at least once a week and after each rainfall. Make any
required repairs immediately.
Should the fabric of o sediment fence collapse, tear, decompose or become
ineffective, replace it promptly. Replace burlap every 60 days.
Remove sediment deposits as necessary to provide adequate storage volume for th
next rain and to reduce pressure on the fence. Take care to avoid undermining
the fence &rang deanout.
Remove ail fencing muter cis and unstable sediment deposits and bring the area
to grade and stabilize it after the contributing drainage areo has ^ 3 properly
stabilized.
SK
Skimmer Sediment Basin
Specification 6.64.7 - Construction Specifications
1. Clear, thgrub, and strip the rrrea under the grrQnbpnitment of all ►�getation an
root at. Remove all su ocQe soil contai in i n qm nts of i5r anic ma err
a d St it or di ose of it roped . FIau Ilgob[ecr able ma edal to e
besi�inotel/ dis�osciT area. Plano tenpbrory sediment cony measures below
s nee
2. Ensure that fill material for the mbankment is free of roots, woody
Yget t' or anic after, and Bier tunable rr�at�nal. Pa a the fill in
ffs not�'o ec inched and mach�r�compact it. Civex fi� a embankment
6 inches to Blow 0 settfanent
3. ape the basin to the sp�cf fie I dimensions. Prevent the skim ming device
din settling into the fnud b xcavgtinq a s nal�ow pit k�nI a skimmer or
providing a ow support undesr t�e skinnier o s one or m er.
4. P ace the bor�el t ical! 4-in Schedule 40 PVC pip) on a firm, Smogth
�ound Lion of ' s�sor7. 0 .not use pernouq fin���nal such s grid
Pee
el, or crusimi one as backh7! around e p e. PIa e Uie r material
rid the i sspp in 4-in 1 cr ac 1� under and around
leds t sameensfty as°Q,e ad'tab n eat �are ust
aken not tq rape rye p�'pe > n the film c ac with s ndation WTen
compacting under the pipe fiaun es.
Piave a minimum th of ?feq.t of coin aced baddill over the p' illway
before crossin it i c c i ip en In no ose y�ould the I
gonduit pq insialle� y cuuNing aTrenn rough the Sam after the enPi 1ment
is compie e.
5. Assemble the skimmer following the manufacturers instructions, or as designed.
6. lay the a bled skri�m�r on the bottom o the b n wi a flex le
aint at e it et of the barrel e. Attach a flexigsfe ' in the c el ip
nd os' iron e skimmer over a excavat itt orbs�p art ;t flir t RNA
7 ro0f 9 thin skimai r rid anchor it to the Nde of thb basin. This wi� be used
o pu l e immer o e side or maintenance.
VJ
to
gn width,
peration
oro
in a trench. the es ma be secur with 8-inch' stqples or iris. 11►e f d
r�list ¢ Ion9�rnok� to ektgnd down a slop@ grid a it ontq S �1 groyn .
the with of the f ri must be piece, not or splwise
water rian get ynger t�n� obri- e ten th of'the ebdi is insufofi t fqr the
en ire eng o e spilway, mu a sec ons spanning a comppl�e a w►dth,
a be used 1h err Lion s� Quid overlap the lower fien s)
' d't water connott Cw under the to a Secure the under e� an sld�es
of the fabric in a trench with staples or pins. (Adapted from --A Manual for
Designing, Installing and Mal toining Skimmer Sediment Basins.' F-#)rucry,
1999. J. W. Fairdoth do Son.).
8. Inlets -Discharge w tqr into or Me basin kl a manner t event
erosion. U
la7p wa7esteth aupp r end the p� art o�nprove baslnr Ups�ie cy
9. Ergsf'on conMt�- struct the structur so {{f�at the disc abed is
mnmi eel Di su ce water a a ba ¢ ar s. �on► le?e�h
em¢anent be�re th are isred�Sltaze emerc spi�lwa
ein ankmen an all o er istu areas ve a crest o e prn
spillway immediately after construction (References: Surface Stabilzation).
10. After all the sediment-prode i areas h ve barn p E
negVy stabilized
remove the structure bnd air( tgie unst fie sedimeft ooth the area to
blend with the adjoining areas and stabilize properly (ferences: Surface
Stabilization).
I select skimmer sediment basins at least weekly and after each significant
ding -half inch or neater) rainfall event 9Qd eoair iinmedia el R over
edment and restdgre thh basip to its origin `Ulmer��ion e1 s. ment
accu lutes to on hat the het eight of a rst b theu th min t
one side so that the �id ea{� i cc ge a c'u Cavae e
to
m tomth�, en irei�a in,ur ��us aroun�the s�Cilnmer or e rst �1.
e sureverge a ion growing in e o tom o the basin does not h dd down
skimmer.
Fin
wot n the b iynn u ally on tfne rih�rnace a'mmer bo� an own Qnodislo�ge1 skin errQveh tosthe ont�ice asidethe
mer �o see i t is dogge� if so remove e FaH
If the skimmer arm or barrel pipe is dogged, the orifice can be removed and
the obstruction cleared with a plumber's snake or by flushing with water. Be
sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs
with fabric that spans the full width of the spillway. Check the embankment
spillways, and outlet for erosion damage, and inspect the embankment for
piping and settlement Make all necessary repairs immediately. Remove all
trash and other debris from the skimmer and pod areas.
Freezing weather can result in ice forming in the basin. Some special
precautions should be taken in the winter to prevent the skimmer from
nluaaina with ice.
Land Grading
Specification J 6.02 - Construction Specifications
1.Construct and maintain all erosion and sedimentation control practices and
measures in accordance with the approved sedimentation control plan and
construction schedule.
2.Remove good topsoil from areas to be graded and Oiled, and preserve it for
use in finishing the grading of all critical areas.
3.Scorify areas to be topsoiled to a minimum depth of 2 inches before placing
topsoil (Practice 6.04, Topsoiling).
4.Cleor and grub areas to be filled to remove trees, vegetation, roots, or other
objectionable material that would affect the planned stability of the fill.
5.Ensure that ill material is free of brush, rubbish, rocks logs, stumps,
building debris, and other materials inappropriate for constructing stable
fills.
6.Place all fill in layers not to exceed 9 inches in thickness, and compact the
layers as required to reduce erosion, slippage, settlement, or other related
problems.
ZDo not incorporate frozen material or soft, mucky, or highly compressible
materials into fill slopes.
&Do not place fill on a frozen foundation, due to possible subsidence and
Slippage.
9.Keep diversions and other water conveyance measures free of sediment during
all phases of development.
10.Handle seeps or springs encountered during construction in accordance with
approved methods (Practice 6.81, Subsurface Drain).
11.Permonent1y stabilize all graded areas immediately after final grading is
completed on each area in the grading plan. Apply temporary stabilization
measures on al/ graded areas when work is to be interrupted or delayed for 30
working days or longer.
12Ensure that topsoil stockpiles borrow areas, and spoil areas are adequately
protected from erosion with temporary and final stabilization measures, including
sediment fencing and temporary seeding as necessary.
Maintenance
Periodically check all graded areas and the supporting erosion and sedimentation
control practices, especially after heavy rainfalls. Promptly remove all
sediment from diversions and other water -disposal practices. If washouts or
breaks occur, repair them immediately. Prompt maintenance of small eroded areas
before they become significant gullies is an essential part of an effective
erosion and sedimentation control plan.
Temporary Seeding continued)
Table 6.10a - Temporary Seeding Recommendation for Late Winter and Early Spring
Seeding mixture
Species- Rye(grain), Annual lespedezo (Kobe in Piedmont and Coastal Plain
Rate (Ib/acre)- 120
Omit annual lespedezo when duration of temporary cover is not to extend beyond
June
Seeding dates -Coastal Plain - Dec. 1 - Apr. '.5.
Soil amendments- Follow recommendations of soil tests or apply 2,000 Ib/acre
ground agricultural limestone and 750 Ib/acre 10-10-10 fertilizer.
Mulch -Apply 4,0001b/acre straw. Anchor straw by tacking with asphalt, netting
or a mulch anchoring tod. A disk with blades set nearly straight can be used
as a mulch anchoring tool.
Maintenance - Refertlize if growth is not fully adequate. Reseed, refertilize
and mulch immediately following erosion or other damage.
Table 6.10b - Temporary Seeding Recommendations for Summer
Seeding mixture
Species -German millet
Rate(Ib/acre)- 40
Seeding dates -Coastal Plain- Apr. 15-Aug. 15
Soil amendments -Follow recommendations of soil tests or apply 2,000 ib/acre
ground agricultural limestone and 750 Ib/acre 10-10-10 fertilizer.
Mulch -Apply 4,000 Ib/acre straw. Anchor straw by tacking with asphalt, netting
or a mulch anchoring tool. A disk with blades set nearly straight can be used
as a mulch anchoring tool.
Maintenance-ReferMize if growth is not fully adequate. Reseed, refertilize
and mulch immediately following erosion or oth- damage.
Table 6.10c - Temporary Seeding Recommendation for Fall
Seeding mixture
Species-Rye(grain)
Rate(lb/acre) - 120
Seeding dates - Coastal Plain and Piedmont -Aug 15 - Dec. 30
Soil amendments - Follow sal tests or apply 2,000 lb./acre ground agricuiturel
limestone and 1,000 lb/acre 10-10-10 fertilizer.
Mulch- Apply 4,000 Ib/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch anchoring tool. A disk with blades set nearly straight can
be used as a mulch anchoring tool.
Maintenance- Repair and refertilize damaged areas immediately. Topdress with 50
Ib/acre of nitrogen in March, if it is necessary to extend temporary cover
beyond June 15, overseed with 50 Ib/acre Kobe (Piedmont and Coastal Plain)
OP
Outlet Stabilization Structure
Specification J 6.41 - Construction Specificati^ns
1. Ensure that the subgrade for the liter and riprap follows the required lines
and grades shown in the plan. Compact any fill required in the subgrade to
the density of the surrounding undisturbed material Low areas in the
subgrode on undisturbed sal may also be filled by Increasing the riprap
thickness.
2. The riprap and gravel filter must conform to the specified grading limits
shown on the plans.
J. Filter cloth, when used, must meet design requirements and be property
protected from punching or tearing during installation. Repair any damage by
removing the riprap and placing another piece of filter cloth over the
damaged area. All connecting joints should overlap a minimum of 1 ft. If
the damage is extensive, replace the entire filter cloth.
4. Rpprap may be placed by equipment, but take care to avoid damaging the
fin ter.
5. The minimum thickness of the riprap should be 1.5 times the maximum stone
diameter.
6. Riprop may be field stone or rough quarry stone. It should be hard, angular,
highly weather -resistant and well graded.
6. Construct the apron on zero grade with no overfall at the end. Make the top
of the riprap at the downstream end level with the receiving area or slightly
below it.
8. Ensure that the apron is properly aligned with the receiving stream and
preferably straight throughout its length. If a curve is needed to fit site
conditions place it in the upper section of the apron.
9. Immediately after construction, stabilize all disturbed areas with vegetation
(Practice 6.10, Temporary Seeding, and 6.11, Permanent Seeding).
Maintenance
Inspect riprap outlet structures after heavy rains to see if any erosion around
or below the riprap has taken place or if stones have been dislodged.
Immediately make all needed repairs to prevent further damage.
Permanent ,ee in
Specifications if 6.11 - Specifications
Seedbed Requirements
Establishment of vegetation should not be attempted on sites that are unsuitable
due to inappropriate soil texture (Table 6.11o), poor drainage, concentrated
overland flow, or steepness of slope until measures have been taken to correct
these problems.
To maintain a good stand of vegetation, the soil must meet certain minimum
requirements as a growth medium. The existing soil should have these criteria.
- Enough fine-grained (silt and day) material to maintain adequate
moisture and nutrient supply (available water capacity of at least .05
inches water to 1 inch of soil).
- Sufficient pore space to permit root penetration.
- Sufficient depth of soil to provide an adequate root zone. The depth to rock
or impermeable layers such as hardpans should be 12 inches or more, except on
slopes steeper than 21 where the addition of sob is not feasible.
- A favorable pH range for plant growth, usually 6.0-6.5.
- Freedom from large roots branches, stones, large clods of earth, or trash of
any kind. Clods and stones may be left on slopes steeper than J. I if they are
to be hydroseeded.
If any of the above criteria are not met-i.e., if the existing soil is too
coarse, dense, shallow or acidic to foster vegetation -special amendments are
required. The soil conditioners described below may be beneficial or,
preferably, topsoil may be applied in accordance with Practice 6.04, Topsoiling.
Soil Conditioners
In order to improve the structure or drainage characteristics of a soil, the
following material may be added. These amendments should only be necessary
where soils have limitations that make them poor for pion i grc = th or for fine
turf establishment (see Chapter 3, Vegetative Considerations).
Peat -Appropriate types are sphagnum moss peat, hypnum moss peat reedsedge peat,
or peat humus, all from fresh -water sources. Peat should be shredded and
cc- ­'tioned in storage piles for at least 6 months after excavation.
Sand -dean and free of toxic materiels
Vermiculite -horticultural grade and free of toxic substances.
Rotted manure -stable or cattle manure not containing undue amounts of straw or
other bedding materials.
Thoroughly rotted sawdust- free of stones and debris. Add 6 lb. Of nitrogen to
each cubic yard.
Sludge -Treated sewage and industrial sludges are available in various forms:
these should be used only in accordance with local, State and Federal
regulations.
Species Selection
Use the key to Permanent Seeding Mixtures (Table 6.11b) to select the most
appropriate seeding mixture based on the general site and maintenance factors.
A listing of species, including scientific names and characteristics, is given
in Appendix 8.02.
Seedbed Preparation
Install necessary mechanical erosion and sedimentation control practices before
seeding, and complete grading according to the approved plan.
Lime and fertilizer needs should be determined by soil tests. Soil testing is
performed free of charge by the North Carolina Department of Agriculture soil
testing laboratory. Directions, sample cartons, and information sheets are
available through county agricultural extension offices or from NCDA. Because
the NCDA soil testing iab requires 1-6 weeiks for sample tum-around, sampling
must be planned well in advance of final grading. Testing is also done by
commercial laboratories.
When soil test are not available, follow rates suggested on the individual
specification sheet for the seeding mix chosen (Tables 6.11c through 6.11v).
Applications rates usually fall into the following ranges:
- Ground agricultural limestone
Light -textured, sandy soils; 1-1 1/2 tons/acre
Heavy textured, dayey soils 2-3 tons/acre
- Fertilizer.
Grasses 800-1200 Ib/acre of 10-10-10 (or the equivalent)
Gross -legume mixtures: 800-1200 Ib/acre of 5-10-10 (or the equivalent)
Apply lime and fertilizer evenly and incorporate into the top 4-6 inches of soil
by disking or other suitable mer­ s Oper-'e machinery or, ths contour. When
using a hydroseeder, apply lime and fertilizer to a rough, loose surface.
Roughen surfaces according to Practice 6.03, Surface Roughening.
Complete seedbed preparation by breaking up large clods and raking into a
smooth, uniform surface (slope less than J. 1) Fill in or level depressions than
can collect water. Broadcast seed into a freshly loosened seedbed that has not
been sealed by rainfall.
Table 6.11s - Seeding No. 4CP for.
Well -Drained Sandy looms to Dry Sands, Coastal Plain; Low to Medium -Care Lawns
Seeding mixture
Species - Centipedegross - Rate - 10-20 Ib/acre (seed) or 33 bu/aa a (sprigs)
Seeding dates - Mar. - June, (Sprigging can be done through July where water is
available for irrigation.)
Soil amendments - Apply lime and fertilizer according to soil test, or apply 300
Ib/ocre 10-10-10.
Sprigging - Plant sprigs in furrows with a tractor -drown transplanter, or
broadcast by hand.
Furrows should be 4-6 inches deep and 2ft apart. Place sprigs about 2 ft. apart
in the row with one end at or above ground level (Figure 6.11d).
Broadcast at rates shown above.. and press sprigs into the top 1 /2 inches of
soil with a disk set straight so that sprigs are not brought back toward the
surface.
Mulch - Do not mulch
Maintenance - Fertilize very sparingly- 20 Ib/acre nitrogen in spring with no
phosphorus. Centipedegross cannot tolerate high pH or excess fertilizer.
Maintenance
Table 6.11 t - Seeding No. 5CP for. Well -Drained Sandy Looms to Dry Sands; Low
Seeding mixture
Species Rate (Ib/acre)
Pensacola Bahiagross 50
Sericea lespedeza 30
Common Bermudagrass 10
German millet 10
Seeding notes
1. Where a neat appearance is desired, omit sericea
2 Use common Bermudagrass only on isolated sites where it cannot become a pest.
Bermudagrass may be replaced with 5 Ib/acxe centipedgrass.
Seeding dates - Apr. 1 - July 15
Soil amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Ib/acre ground agricultural limestone and 500 Ib/acre 10-10-10 fertilizer.
Mulch
Apply 4,000 Ib/acre grain straw or equivalent cover of another suitable mulch.
Anchor by tacking with asphalt, roving and netting or by crimping with a mulch
anchoring tool. A disk with blades set nearly straight can be used as a mulch
anchoring tool.
Maintenance - Refertilize the following Apr. with 50 Ib/acre nitrogen. Repeat
as growth requires. May be moved only once a year. Where a neat appearance is
desired, omit sericea and now as often as needed.
Table 6.11 v - Seeding No. 7CP for. Gross -lined Channels; Coastal Plain
Seeding Mixture
Species - Common Bermudagrass - Rate - 40-80 (1/2 6/1,000 ft )
Seeding dates - Coastal Plain; Apr - July
Soil amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Ib/acre ground agricultural limestone and 500 Ib/acre 10-10-10 fertilizer.
Mulch - Use jute, excelsior matting, or other effective channel lining material
to cover the bottom of channels and ditches. The lining should extend above the
highest calculated depth of flow. On channel side slopes above this height, and
in drainages not requiring temporary linings, apply 4,000 ib/acre grain straw
and anchor straw by stapling netting over the top.
Mulch and anchoring materials must be allowed to wash down slopes where they can
clog drainage devices. ,
lw-
Maintenance -A minimum of 3 weeks is required for est sf
repair mulch frequently. Refertilize the following Apr. with lb/acre
Refer to Appendix 8.02 for botanical names
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791- 4441
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PROJECT NO.: 06-0134
EC11 �'C12
Sheet No. Gi

wo 15 0 30 .• ••
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33.3 FT
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= 6:1 PLANTED SHELF
__.........
TOP OF VEG. SHELF
PERMANENT POOL
BOTTOM OF VEG SHELF
Proposed Plon t Toble
VEGETATIVE PLANTING 6.1 SHELF
Quantity
Symbol
Scientific Name
Common Name
Planting Size
Planting Remarks
Planting Season
1,217
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217
_
LOBELIA CARDINALIZ
CARDINAL FLOWER
4 CUBIC INCH
8' O.C.
SPRING, FALL
1,217_
RHYNCHOSPORA COLORATA
STARRUSH WHIIETOP
4 CUBIC INCH
8' O.C.
SPRING, FALL
O.C. — "ON CENTER" CAL. — "CALIPER AT 6" ABOVE GRADE" GAL. — "GALLON CONTAINER"
PLANTINGS REQUIRED = 14,502 SF / 200 = 73 X 50 = 3,650 PLANTS REQUIRED
MINIMUM OF 3 DIFFERENT SPECIES REQUIRED
REMAINING PORTION OF POND ABOVE 6:1 SHELF TO BE PLANTED WIIH CENTIPEDE GRASS
FOREBAY BERM TO BE CENTIPEDE GRASS OR LINED WITH RIP RAP
I. WORK SHALL MEET THE REQUIREMENTS OF ALL LOCAL, STATE, AND FEDERAL GOVERNING CODES, ORDINANCES, LAWS, REGULATIONS, SAFETY
ORDERS AND DIRECTIVES
2. CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING HIMSELF/HERSELF FAMIUAR WITH ALL UNDERGROUND U11171ES, PIPES AND STRUCTURES
CONTRACTOR SHALL TAKE SOLE RESPONSIBILITY FOR ANY COST INCURRED DUE TO DAMAGE OF SAID UIIUTIES
3. CONTRACTOR MUST CHECK ALL SITE CONDITIONS PRIOR TO COMMENCING WORK. CONTRACTOR SHALL NOT WILLFULLY PROCEED WITH
CONSTRUCTION AS DESIGNED WHEN IT IS OBVIOUS THAT UNKNOWN OBSTRUCTIONS AND/OR GRADE DIFFERENCES FJOST THAT MAY NOT HAVE
BEEN KNOWN DURING DESIGN. SUCH COND171ONS SHALL BE IMMEDIATELY BROUGHT TO THE ATTENTION OF THE ENGINEER. THE CONTRACTOR
SHALL ASSUME FULL RESPONS161LITY FOR ALL NECESSARY REW90NS DUE TO FAILURE TO GIVE SUCH NOTIFICATION.
4. ALL PLANT QUANTITIES ARE IDENTIFlED BY TYPICAL SYMBOLS REIFR TO PLANT LEGEND FOR QUANTITIESS, PLANT QUANTITIES ARE
APPROXINAIE AND ARE PROVIDED FOR THE CONVENIENCE OF THE CONTRACTOR. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO CONFIRM
ALL PLANT QUANTITIES PRIOR TO BIDDING IN THE EVENT OF DISCREPANCIES IN PLANT COUNT, QUAN7171ES INDICAIED BY PLANT SYMBOLS
SHALL PREVAIL
5. CONTRACTOR SHALL NOTIFY DESIGNER IF ANY SPECIFIED PLANT MATERIAL IS FOUND TO BE UNAVAILABLE:
6. ALL AREAS NOT WIIHIN THE 6.1 SHELF SHALL BE STABILIZED WITH CENTIPEDE GRASS
7. IF ANY OF SPECIFIED PLANTS ARE UNAVAILABLE, CHOOSE A NATIVE ALIERNAINE FROM UST ON THIS PAGE
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX TENERA (QUILL SEDGE)
- CHELOINE GLABRA (WHIIE TURIIEHEAD)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WED)
- EUPATORIADELPHUS DUBIUS (DWARF JOE PYE WEED)
- EUPATORIADELPHUS FlSTULOSUS (JOE PYE WEED)
- EUPATORIADELPHUS MACULATUS (SPOTTED TRUMPETWEED)
- H1581SCUS COCGNEUS (SCARLET ROSE MALLOW)
- HIBISCUS LAEVIS (HALBERDLEAF ROSEMALLOW)
- KOSIELE72KYA V1RGINICA (SEASHORE MALLOW)
- LOBELIA CARDINALIZ (CARDINAL FLOWER)
- LOBELIA ELONGATA (LONGLEAF LOBELIA)
- LOBELIA SIPHILITICA (GREAT BLUE LOBELIA)
- RHYNCHOSPORA COLORATA (STARRUSH WHIIETOP)
- SACCHARUM BALDWINII (NARROW PLUMEGRASS)
Ck
1/gri/ol
EEIVE
L i 9 209
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
(910) 791— 4441
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HORZ. SCALE.- 1" = JO'
VERT. SCALE: N/A
DRA WN B Y.- RL W
CHECKED B Y.- HSR
PROJECT NO.: 06— 0134
Sheet No. LP 1 of LP 1

AREA (AC) DRAINING
X OF POND
VOLUME (cf)
% OF VOLUME
FOREBAY
TO FOREBAY
DA
PROVIDED
PROVIDED
1
2.04
7.2
4,560
10.1
2
4.51
15.9
12,202
27.1
3
5.81
20.5
14,132
31.4
4
6.19
21.9
14,132
31.4
NOTE. POND DA = 28.28 AC
15% MIN TOTAL FOREBAY VOLUME = 38,405 CF
2090 MAX TOTAL FOREBAY VOLUME = 51,207 CF
TOTAL FOREBAY VOLUME PROVIDED = 45,026 CF
100 50 0 100 200 300
SCALE IN FEET' 1"= 100'
3A Y 2B-3
B-1
PPN -, Lu NORTH CAROLINA 04V1 E
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COMMISSION
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COSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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HORZ• SCALE I" = 100'
VERT. SCALE. N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No. Of
�p M

STRUCTURE
AREA
CB2
1.00
CB3
0.82
CB4
1.76
CB6
0.70
CB8
1.52
CB9
1.05
CB10
0.67
CB12
1.40
CB13
1.48
CB14
1.54
C816
2.73
CB17
1.99
// 50 / 100 200//
SCALE IN FEET. 1"= /I
CSD
ENGINEERING
LICENSE # C-2710
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. BOX 4041
WILMINGTON, NC 28406
[phone]
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VERT. SCALE: N/A
DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06— 0134
Sheet No. 01

N/F N/F
MYRTLE GROVE COASTAL CHRISTIAN N
404 WETLANDS DELINEATION CERTIFICATE / ' / ! f
CHRISTIAN SCHOOL HIGH SCHOOL MYRTLE GROVE
DB 5769/2302 / DB 5647/616 PRESBYTERIAN
THIS CERTIFIES THAT THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF l / S 7518'55" E I CHURCH
SECTION 404 OF THE CLEAN WATER ACT PURSUANT TO THE 1987 CORPS OF ENGINEERS 1 SOIL ROAD DB 5647/616
SOIL ROAD rn
DELINEATION MANUAL AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A l 139.11 / 30' SANITARY SEWER EASEMENT E2
/
CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION MAY BE RELIED UPON T 30' SANITARY SEWER EASEMENT. / (DB 5499/2435)
FOR A PERIOD OF FIVE YEARS FROM THIS DATE. ANY ISOLATED WETLANDS OR WATERS THAT ARE / (DB 2472/155)
OUT OF CORPS JURISDICTION HAVE BEEN LABELED ON THE SURVEY. I S 747j "
N/F_ A
rL / � ARTHUR 4g E(
68229
T
1 7— �, , DB 5830/2499 ,
SIGNATURE, U.S. ARMY CORPS OF ENGINEERS OFFICIAL DATE
TI TLE.
EXPIRATION DATE OF DELINEATION:
USACE ACTION ID:
/ / T - - - - - - - -
N
�. . . . . . . . . . I GRAPHIC SCALE
"' .- f / -� - - - • - - - - I , 300 0 150 300 600
116.97 ACRES
f NOT DETERMINED
(NOVEMBER 2016)
- - - - - - - - - I ` ( IN FEET )
I inch = 300 ft.
} �— i - - PROJECT BOUNDARY 2016
T" �_... (� I , � / r ! SOIL ROAD . . . . _ . Z _ I qI
NOT FOR RECORDING OR CONVEYANCE % ` � / / � � 30' SANITARY SEWER EASEMENT / _ GENERAL .OYES
(DB 2472/155) / T 1. THIS MAP WAS PREPARED FROM A COMBINATION OF RECORD DOCUMENTS
" -I I AND A PARTIAL FIELD SURVEY. THIS IS NOT A BOUNDARY SURVEY, BUT
THE WETLANDS DATA IS TIED TO BOUNDARY MONUMENTS.
2. BASIS OF BEARINGS FOR THIS MAP/PLAT ARE BASED ON LOB 5836\1392
N/F
I f MASTERSON Q, — — — J. ALL DISTANCES ARE HORIZONTAL GROUND DISTANCES UNLESS OTHERWISE
7 I MILLS DB 2655/505 M I i NOTED.
_ / I DB 520/ 325 N F
N/F OHI ASSET � ^ � \ �.. 4. UNITS ARE U.S. SURVEY FEET UNLESS OTHERWISE NOTED.
/ MILLS WILMINGTON LLC / 5. AREA BY COORDINATE GEOMETRY.
2134 \ ��-: A� 6. THIS SURVEY PERFORMED AND MAP PREPARED WITHOUT BENEFIT OF A TITLE
DB 5952
DB 1156/15 / SANITARY SEWER � ' �� /
N 25'31'53' E / _ — — EASEMENT T EXISTING SEWER MANHOLE REPORT THIS SURVEY SUBJECT TO ANY FACTS AND EASEMENTS WHICH
59.58'_ - — _ _ N 12.22'28• W MAY BE DISCLOSED BY A FULL AND ACCURATE TITLE SEARCH.
j/
S 8225 E 942.56' 163.99' 07" r , 7. COUNTY PARCEL # R07600-004-052-000 ! \ 1 1
8. TOTAL SITE AREA: 138.41f ACRES
S 6SSS'S� - - N 7*2443' E 3 V (NOVEMBER
0 1! \ g MAP & DEED REFERENCES PER NEW HANOVER COUNTY REGISTRY
I � 8.92 ACRES 127•�' � (NOVEMBER 2016) ( ):
N 6 F �O143, ��- NOT DETERMINED EXISTING SOIL ROAD DB 583611392
(DECEMBER 2015) \ `
Q / N F W 6 `� - MODIFIED NOV. 2016 _ N 31.56'14' E ' ! / (AND OTHEPS THAT MAY BE SHOWN ON THIS MAP)
/ TREGUMBO ¢663' \\ (. ) 1e2n- �\ — 10. FLOOD ZONE NOTE: AS DETERMINED BY GRAPHIC PLOTTING, IS LOCATED IN
DB 4906/2159 N/F / N 33�62, �` ` PROJECT�OUPIDARY 2016 'u rr FLOOD HAZARD ZONE "X" (NON SHADED), PER FEMA FLOOD INSURANCE
\ TREGUMBO I/ BS3W \�� . _ N s1ro2'1a' E _ ~ " RATE MAPS (FIRM) #3720313300J & 37203IJ400J. EFFECTIVE DATE.
�' ! S DB 3875/921 - �� 0 1
`0 � ' 6S I8- S 24'20'34" W 39•00' 1 22.48'43' E FUTURE FORCE MAIN00
f 0410312006
9 j' ` / '� - '� N 64'51'04' E a
113.01' M
SYMBOL LEGEND:
EXISTING IRON (AS NOTED)
®
SEWER CLEAN -OUT
0
REBAR SET (RBS)
U71LITY POLE
■
EXISTING MONUMENT (AS NOTED)
4
GUY WIRE ANCHOR
"�,
EXISTING RIGHT-OF-WAY MONUMENT
ELECTRIC PEDESTAL
EXISTING NCGS MONUMENT (AS NOTED)
m
ELECTRIC METER
WATER METER
>
LIGHT / UGHT POLE
W
WATER VALVE
TELEPHONE PEDESTAL
FIRE HYDRANT
MAIL BOX
®
SEWER MANHOLE
®
WELL
0
SOIL BORING
LINETYPE LEGEND:
SURv£'i£D LINES (BOUNDARY)
LINES FROM RECORD DATA
- — — — — — — — - LINES NOT SURVEYED (ADJOINERS)
RIGHT-OF-WAY
iE3EXX XX XX FENCE (AS NOTED)
ABBREVIATIONS.
EIP
EXISTING IRON PIPE
DB
DEED BOOK
EIR
EXISTING IRON ROD
MB
MAP BOOK
MGF
MAO NAIL FOUND
MC
MAP CABINET
RBS
REBAR SET
PG
PAGE
MON
EX. MONUMENT (AS NOTED)
BLDG
BUILDING
ECM
EX. CONCRETE MONUMENT
[E]
EXISTING
NCGS
N.C. GEODETIC SURVEY
EL
ELEVATION
N/F
NOW OR FORMERLY
(TYP)
TYPICAL
EC UPLAND S 65��' 6" - - - - - - , I '
D EMBER 2 F _I S 60'03'47' E 2
2015) S2d 6.37 ACRES _ I 1 94.42'
N 83'16'02" 64' _ `� _ NOT DETERMINED - I N 80.1P11' E
W 383.46' (DECEMBER 2015) I loons' FUTURE GRAVITY SEWER l ~ f CERTIFICATE OF ACCURACY &MAPPING
/ L��sN 7025- 1 N 7524' _ _ _ _ . 6157' 81.68' (� ` ~ , I I, THE UNDERSIGNED CERTIFY THAT THIS SURVEY WAS DRAWN UNDER MY SUPERVISION FROM AN ACTUAL SURVEY
_ T \ _ l 1 '' — '� ~ MADE UNDER MY SUPERVISION (DEED DESCRIPTION RECORDED IN BOOK 5836 PAGE 1392 ETC.);
���� N 25'49'2� 1 WF XOT WF xos �g�3T41' E j THAT THE BOUNDARIES NOT SURVEYED ARE CLEARLY INDICATED AS DRAWN FROM INFORMATION AS FOUND IN
>r �
BOOK AS PAGE NOTED
WF zoa THAT THE RATIO OF PRECISION, AS CALCULATED, IS 1: 10,000+; THAT
WF X09 WFX05 52.58' E THIS PLAT WAS PREPARED IN ACCORDANCE WITH G.S. 47-30 AS AMENDED. WITNESS MY ORIGINAL SIGNATURE,
I I I N 74'29'22" E WF X10wF X04 S 13'2523-E -- LICENSE NUMBER AND SEAL THIS DAY OF DECEMBER A.D. 20 16
.-� 77.37'
17.29' �� WF X03 ( _ 1 a,•1
N 4'32'24" E 455 2f;' N 66'48'40" W >�040, PROPOSED 60' UTILITY EASEMENT
j 219.23' 4" W 81.58' E 1
' i �, � S 1'S2'12'
S11,79 N 66.48'40' w WF X02 132.33' J ,� \ / f JOSEPH A. ROMEO - PROFESSIONAL LAND SURVEYOR L-4937
404 oWETLANDS S'33141' W
s Y r
_ 2.62 ACRES
i I (NOVEMBER 2016) GRAVITY SEWER 344.s3' //
_>
I I _ ( — _ _ _ / /r ,� N ss48'4o' w N eororn• W 1 / l _.. �l� f:-
FORCE MAIN
258.75' L 1 NOT FOR R. CC<.?IL3G OR CC>Pdvm'YANCE t
> ' / -UPLAND-
o ' _s - - / / _ / - / (DECEMBER 2015) t f SHEET:
- [ _ 0 Z N'n o /4
S _ �, L_ // j I 1 OF 1
I I s5'L_z �� / / / 1 't _ I --
— _ ILom / " DATE OF SURVEY: SCALE:
I 1 BLS PROJECT NO:
--_
N N M -� ' 1 iry 12 01 16 AS NOTED
p m �' DRAWN: CHECKED:
�,� �� , 15-1054
;ZEI S 86'50'34" E / / �" W 1 OF TRIBUTARY z \ / i JAR BLS
— 19.78' _ / I (MAPPED DECEMBER, 2015) / f
REVISIONS
NO. I DATE DESCRIPTION BY
T ___ ; _ _ / / _ 1 _ -,tea /1 % - _W_ BASE LINE SURVEY, PLLC
�-4 -
N 4'35'24" E / 1 N 69'39'36" W I 1 / ~/
I f j ( j i I I 75.00' - 187.53' \ I / � � � / ~ � C � � V
I 1i_.J_._,f f I i jl 1399.91' 1 1 1��1- / �� ,� �� %� l �� LICENSE P-1091
MANASSAS DRIVE L — I N 85'18'56" W / W
S l6'51'23 —'DRIVE T T / ' \
T--- 13e.ss' ��--- ,. SON T .� PO Box 15966, Wilmington, NC 28408
�i` T T T T —1 1 _ N 63'48'32' W / _ ." \ \ 1� cONGL�N �I' 1 1 , �\ �J / / sI 2017
_ N 20'2024 E \ �— ��•, �__ [phone] www.baselinesurveync.ciom
159.23\ 1 119.58' I-- I—
�7o "HEGLAR TRACT"
OWNER (N/F)' HOOSIER DADDY, LLC
L-� Lei---
PARCEL ID: R07600-004-052-000 (DB 5836\1392)
/� T" FEDERAL TOWNSHIP NEW HANOVER COUNTY NORTH CAROLINA
0 404 WETLANDS LOCATI N MAP

LOCATION MAP
NOT TO SCALE
'LANNED EROSION AND SEDIMENT CONTROL PRACTICES -
CE 1. TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
Practice 6.06
SHALL BE INSTALLED AT THE ENTRANCES TO THE PROJECT
FROM AN EXISTING ROADWAY. DRAINAGE SHOULD BE AWAY FROM
THE ROAD AND EROSION WILL BE CONTROLLED WITH DOWNSTREAM
PRACTICES DURING WET WEATHER IT MAY BE NECESSARY TO WASH
TRUCK 71RES AT THESE LOCATIONS
2. LAND GRADING
Practice 6.02
GRADING SHOULD BE LIMITED TO AREAS AS SHOWN ON THE
PLANS CUT AND FILL SLOPES SHALL BE 3:1 OR FLITTER EXCEPT
WHERE SPECIFICALLY INDICATED. CARE SHALL BE TAKEN DURING
LAND GRADING ACTIVITIES NOT TO DAMAGE EXISTING TREES THAT
ARE IDENTIFIED AS 'TO BE PRESERVED'.
SF< J. SEDIMENT FENCE
Practice 6.62
SEDIMENT FENCING SHOULD BE INSTALLED AS SHOWN ON THE
PLAN, TO DELINEATE AND PROTECT WETLANDS AND SPECIFIED AREAS,
AND AROUND ANY TEMPORARY STOCKPILE AREAS AS NECESSARY TO
PREVENT ANY GRADED INTERIOR AREAS FROM ERODING ONTO ADJACENT
LANDS OR ROADWAY, OR INTO INLETS OR AS DIRECTED BY ENGINEER
OR NEW HANOVER COUNTY EROSION CONTROL PERSONNEL.
G C 4. GRASS -LINED CHANNELS
PRACTICE 6.30
ALL OVERFLOW SWALES TO BE GRADED TO DESIGN
CONFIGURATION,LINED WITH CENTIPEDE SOD, TO COLLECT AND
CONVEY SIZE WATER AS SHOWN ON PLAN. AFTER FINAL PROJECT
STABILIZATION, SWALES TO BE RE -GRADED, CLEANED OF
SILTATION AND LINED WITH CENTIPEDE SOD TO ESTABLISH
ORIGINAL DESIGN CONTOURS FOR STORMWAM? CONVEYANCE.
5. CONSTRUCTION ROAD STABILIZATION
PRACTICE 6.80
UPON REACHING FINAL GRADE AND AFTER UTILITIES HAVE
BEEN INSTALLED, ROADWAYIPARKING AREAS ARE TO BE
STABILIZED BY PLACING SUB -BASE AS SHOWN IN THE TYPICAL
STREET CROSS-SECTION DETAIL ON THE PLAN, TO REDUCE
EROSION AND DUST DURING THE REMAINDER OF BUILDING
CONSTRUCTION.
S B 6. SEDIMENT BASIN
PRACTICE 6.61
114E SEDIMENT BASIN IS TO BE CONSTRUCTED FIRST (SEE
CONSTRUCTION SCHEDULE) AND IS THE PRIMARY PRAC710E TO
PREVENT SEDIMENT FROM LEAVING THE SITE. DETAILED DESIGN AND
SPILLWAY CONFIGURA71ONS ARE SPECIFIED IN THE DETAIL SHEET.
SK 7. SKIMMER
PRACTICE 6.64
A SEDIMENTATION BASIN DEWATERING CONTROL DEVICE THAT W7HDRAWS
WATER FROM THE BASINS WATER SURFACE, THUS REMOVING THE HIGHEST QUALITY
WATER FOR DELIVERY TO THE UNCONTROLLED ENVIRONMENT.
TD 8. TEMPORARY DIVERSIONS
PRAC77CE 6.20
A TEMPORARY RIDGE OR EXCAVATED CHANNEL OR
COMBINATION RIDGE AND CHANNEL CONSTRUCTED ACROSS
SLOPING LAND ON A PRE- DETERMINED GRADE TO
PROTECT WORK AREAS FROM UPSLOPE RUNOFF AND TO
DIVERT SEDIMENT -LADEN WATER TO APPROPRIATE TRAPS
OR STABLE OUTLETS.
B F 9. BAFFLE
PRACTICE 6.65
A POROUR BARRIER INSTALLED INSIDE A TEMPORARY SEDIMENT TRAP,
SKIMMER BASIN OR SEDIMENT BASIN TO REDUCE THE VELOCITY AND
TURBULENCE OF WATER FLOWING THROUGH THE MEASURE AND TO FACILITATE
THE SETTLING OF SEDIMENT FROM WATER BEFORE DISCHARGE.
OP 10. OUTLET STABILIZATION
PRACTICE 6.41
RIPRAP APRONS WILL BE LOCATED AT THE DOWNSTREAM END OF
ALL DISCHARGE PIPES TO PREVENT SCOUR.
TP 11. TREE PROTECTION
PRACTICE 6.05
RESTRICT ACCESS TO TPZ WITH TALL BRIGHT PR07ECIIW FENCING ON
AREAS INDICATED ON PLAN.
S1TE DATA:
PROJECT AREA
6,028,954 SF or 138.41 AC.f
SOIL TYPE(S)
547,760 SF (12.57 AC) = Kr
976,537 SF 22.41 AC) = PM
397,719 SF (9.13 AC) = LY
169,418 SF (3.88 AC) = LE
Z392 SF (0.05 AC) = MU
FOR LOTS 1-51
ROADS 61,197 SF
SIDEWALKS 8, 733 SF
PUMPSTA71ON 4,716 SF
BUILDINGS 178,500 SF
NO IMPERVIOUS PLANNED FOR THIS PHASE
OF GRADING FOR LOTS 52-95
SQUARE FOOTAGE OF DISTURBANCE
767,410 SF ASSOCIATED WITH COMMERCIAL
1,375,868 SF ASSOCIATED W17H SINGLE FAMILY LOTS
2,143,278 SF TOTAL
LEGEND
I - - - � EXISTING BOUNDARY
' ' ' NO WETLANDS DETERMINATION
EXISTING CULVERT
`CE 7; 7 CONSTRUCTION ENTRANCE
sSF X X SILT FENCE
PROPOSED CULVERT
�(3F7Z)-I]------► TEMPORARY DIVERSION
1. SOIL STABILIZATION TIMETRAMES
SITE AREA DESCRIPTION
STABILIZATION
TWEFRAME EXCEP77ONS
PERIMETER DIKES,SWALES
7 DAYS
NONE
DITCHES AND SLOPES
HIGH QUALITY ZONES(HOW)
7 DAYS
NONE
SLOPES STEEPER THAN 3:1
7 DAYS
IF SLOPES ARE 10 FT OR LESS IN L64GTH
AND ARE ARE NOT STEEPER THAN 2: 1,
14 DAYS ARE ALLOWED
SLOPES 3:1 OR FLITTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN
50 FT IN LENGTH
ALL OTHER AREAS WITH SLOPES 1
14 DAYS I
NONE, EXCEPT FOR PERIMETER AND
FLATTER THAN 4.1
1
HQW ZONES
2 DENUDED AREAS MUST BE STABILIZED WITHIN FIFTEEN (15) WORKING
DAYS OF CEASE OF ANY PHASE OF ACTIVITY. ALL SLOPES MUST BE
STABILIZED WTHIN TWENTY-ONE (21) CALENDAR DAPS OF CEASE OF ANY
PHASE OF ACTIVITY. THIS INCLUDES SLOPES, SWALES, CHANNELS AND
STOCKPILES
J. THIS PLAN TO BE UTILIZED AND REVIEWED ONLY IN CONJJNC77ON
WITH THE WRITTEN NARRATIVE, WHICH IS AN INTEGRAL PART OF
THIS EROSION AND SEDIMENT CONTROL PLAN.
4. ALL SLOPES SHALL BE 3:1 OR FLATTER.
5. NO WETLANDS EXIST WITHIN LIMITS OF DISTURBANCE
6. BOUNDARY SURVEY PERFORMED BY SOUTHWIND SURVEYING
7. TOPOGRAPHIC SURVEY PERFORMED BY CAROLINA RESOURCES MAPPING WITH SUPPLEMENTARY
TOPOGRAPHIC INFORMA77ON PERFORMED BY BASELINE SURVEYING.
8. ELEVATION DATUM: NAND 88
9. ALL SWALES TO BE LINED W1IH EXCELSIOR MATTING OR EQUAL
10. ALL EXISTING CULVERTS TO BE REMOVED EXCEPT FOR SHl-SH3.
11. LOTS 52-95 WILL ONLY BE FOR ROUGH GRADING. NO FINAL ROAD DESIGN HAS BEEN
COMPLETED. ONCE DESIGN IS FINALIZED A REVISION TO THE EROSION CONTROL PERMIT
WILL BE SUBMITTED FOR APPROVAL
PROPERTY OWNER CERTIFICATION:
"I HEREBY CERTIFY THAT AM THE CURRENT OWNER OF THE PROPERTY AND THAT
UPON RECEIPT OF "AUTHORIZATION -TO-CONSTRUCT"ANY CLEARING, GRADING, CONSTRUCTION
OR DEVELOPMENT, WILL BE PERFORMED IN ACCORDANCE WITH THIS PLAN AND THAT THE
APPLICABLE ORDINANCES AND RULES OF NEW HANOVER COUNTY, THE STATE OF NORTH
CAROLINA AND THE FEDERAL GOVERNMENT AND ITS AGENCIES WHICH ARE HEREBY MADE
PART OF THIS PLAN. AS THE OWNER, I ACCEPT FULL RESPONSIBILITY FOR THE CONSTRUCTION
AND OPERATION AND MAINTENANCE OF THE PROPOSED FACILITIES. I WILL NOT ATTEMPT TO
TRANSFER THIS RESPONSIBILITY WITHOUT THE WRITTEN AUTHORIZATION OFF NEW HANOVER COUNTY.
SIGNATURE: (`"
PRINTED NAME AND TITLE: af�h 63 L 7a n0 7132L m P4�4,rs J�
DATE:
DESIGNER'S PLAN CERTIFICATION:
"I HEREBY CERTIFY THAT THIS PLAN HAS BEEN PREPARED IN ACCORDANCE WITH
THE LATEST NEW HANOVER COUNTY ORDINANCES AND STORMWATER DESIGN MANUAL."
SIGNATURE: l
PRINTED NAME AND TITLE: LA),9 I F_`P,f0i k r-",�57
DATE: Z Z3
REGISTRATION NUMBER: 1205-92.)
CONS77?UC7ION SCHEDULE -
1. OBTAIN APPROVAL OF PLAN AND ANY NECESSARY PERMITS, AND HOLD
A PRE-CONSIRUC110N CONFERENCE PRIOR TO COMMENCING ANY WORK.
2 FLAG WORK LIMITS AND STAKE -OUT ROW, TEMPORARY DIVERSIONS AND SED. BASINS
FOR PRELIMINARY GRADING.
J. INSTALL GRAVEL CONSTRUCTION ENTRANCES.
4. INSTALL SILT FENCING PRIOR TO ROUGH GRADING THE REMAINING
91E AND ANY STOCKPILING OF MATERIAL AND TOPSOIL NECESSARY.
5. CONSTRUCT SWALES, GRASS LINED CHANNELS, SEDIMENT BASINS
AND ANY OTHER SEDIMENT CONTROL PRACTICES SHOWN, PRIOR TO
ROUGH GRADING ROADWAYS AND SITE, STOCKPILING TOPSOIL AS NECESSARY.
6. UNDER CUT ROW FOR SWEETGUM DRIVE AND CANOPY WAY SO LOTS WILL DRAIN
TO ROW AND SWALES
Z ESTABLISH ROUGH ROAD GRADES
AND STABILIZE ROAD WITH TEMPORARY OR PERMANENT SEEDING
8. ALL EROSION AND SEDIMENT CONTROL PRACTICES ARE TO BE
INSPECTED WEEKLY AND AFTER ANY RAINFALL, AND REPAIRED AS
NECESSARY.
9. SUBMITTAL AND APPROVAL OF A FINAL DESIGN PLAN IS REQUIRED BEFORE ANY IMPERVIOUS
MATERIAL CAN BE INSTALLED.
MAINTENANCE PLAN -
1. ALL MEASURES TO BE INSPECTED WEEKLY AND AFTER ANY RAINFALL
EVENT AND NEEDED REPAIRS MADE IMMEDIATELYY,
2. SEDIMENT TO BE REMOVED FROM SWALES WHEN THEY ARE APPROXIMATELY
5OX FILLED OR SEDIMENT LEVEL IS WITH I' OF TOP OF DITCH BANK.
J. SEDIMENT TO BE REMOVED FROM BEHIND ANY SILT FENCE AND
INLET PROTECTION DEVICES WHEN IT BECOMES 0.5' DEEP. FENCING
AND INLET PROTECTION TO BE REPAIRED AS NEEDED TO MAINTAIN A BARRIER.
4. AS NVSEEDED
ARY ACCORD N G TO FERTILIZED,
CI� 1I� MULCHED
DED,RE-SEEDED
MAINTAIN A SUITABLE VEGETAAVE COVER.
5. CONSTRUCTION ENTRANCE TO BE MAINTAINED IN SUCH A MANNER AS TO
PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION SITE.
PERIODIC TOPDRESSING WITH 2-INCH STONE MAY BE REQUIRED.
INSPECT AFTER EACH RAINFALL AND IMMEDIATELY REMOVE ALL
OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO
PUBLIC ROADWAYS.
6. INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH
SIGNIFICANT (ONE-HALF INCH OR GREATER RAINFALL EVENT AND REPAIR
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL
DIMENSIONS WHEN SEDIMENT ACCUMULATES TO ONE-HALF THE HEIGHT OF
THE FIRST BAFFLE. PULL THE SKIMMER TO ONE SIDE SO THAT THE SEDIMENT
UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE SEDIMENT FROM THE
ENTIRE BASIN, NOT JUST AROUND THE SKIMMER OR THE FIRST CELL MAKE
SURE VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD
DOWN THE SKIMMER. SEDIMENT TO BE REMOVED FROM SEDIMENT BASINS
WHEN A MINIMUM OF 5OX OF VOLUME HAS BEEN FILLED.
REFER TO CHART FOR BASIN DEPTHS.
7. IF SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING ON THE
ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND DISLODGE THE DEBRIS AND RESTORE FLOW.
IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF BASIN AND REMOVE THE
DEBRIS. ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED. IF SO REMOVE
THE DEBRIS
8. REMOVE SEDIMENT FROM BEHIND BAFFLES ONCE ACCUMULATION HAS REACHED
112 HEIGHT OF THE FIRST BAFFLE. REPLACE BAFFLE PROMPTLY IF FHEY COLLAPSE
DECOMPOSE OR BECOME INEFFECTIVE
9. REFER TO NC LQS 'EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN
MANUAL' FOR ADDITIONAL MAINTENANCE REQUIREMENTS FOR EACH EROSION
CONTROL DEVICE.
Vi_GETATIW PLAN -
I. PERMANENT VEGETATION TO BE ESTABLISHED IN ACCORDANCE WITH
NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL' SECTION 6.11, LATEST VERSION.
DRIPLINE
PROTECTIV
BARRIEF
TREE
3' MIN. STAKE
-HEIGHT ABOVE
GRADE
NOTE:
TREES TO BE SAVED WILL BE CLEARLY MARKED PRIOR TO CONSTRUCTION AND A
PROTECTIVE BARRIER IS TO BE INSTALLED AT THE DRIPLINE.
DRIP LINE - THE AREA OF SOIL DIRECTLY BENEATH THE TREE EXTENDING OUT TO
THE TIPS OF THE OUTERMOST BRANCHES.
SD 15-08
NOT TO SCALE
APPROVED
Py3ppu'ARO!INA ENVIRONME
I►MAGEMENi COMMISSION
6W3
al�c�
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MAP
LICENSE j C-2710
COASTAL
SITE
DESIGN, PC
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. Box 4041
Wilmington, NC 28406
[phone]
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DATE: 12-17-15
HORZ. SCALE., 1" = 200'
VERT. SCALE: N/A
DRA WN B Y.- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06- 0134
00 50 0 100 200 300 EC 1 EC9
Sheet No. Of
SCALE IN FEET: 1"= 100'

INSTALL JJ7E MATTING
FOR BANK STABILIZATION
INV. EL = I &
F.E.S. W/ 2 CY CL 11 RIP RAP
INSTALL F.E.S. IN SIDE SLOPE OF CREEK BANK
DO NOT DISTURB ANY PART OF THE FLOW
LINE IN BASE OF EXISTING CREEK BED
DITCH CHANNEL PROTECTION ISN'T REQUIRED FOR 7HE EROSION CONTROL PERMIT. LOCATIONS WHERE THIS DETAIL IS
REFERENCED WILL BE INSTALLED AT 7HE DEVELOPERS DISCRE710N.
FLOW LINE IE = 18.3-
PIPE IE = 17.3
7 CY CLASS 11 RIP RAP
CULVERT 1-
(2) - 85 LF 54' RCP'S
FLOW LINE IE = 18.0
PIPE IE = 1 ZO
10 CY CLASS II RIP RAP
NOT TO SCALE
50 25 0 50 100 150
SCALE IN FEET: 1 "= 50'
I
I Il ♦ �
s / ♦ j/
\ ♦ /
20 CY CLASS !! RIP RAP
SEE DETAIL THIS SHEET
\ 24 CY CLASS 11 RIP RAP ?j
� ,.,:. � � � /. � SWALE 1 `�` ♦ ♦
�Nw_,
I
17 CY CUSS it RIP RAP
SEE DETAIL THIS SHEET
\\ \ IE = 20.5 1
\ ` 2 CY CLASS 11 RIP RAP N o
CULVERT 5
O 20 LF 18' RCP J _♦
/ 1E 20.4
-2 CY CLASS 11 RIP RAP�-
D72 I ' EX. CULVERT TO BE REMOVED
SWALE 8 i / \ 46 ' ' O _
FLUME 4
O O IE IN ,= 23.04
48
fit
IE OUT = 225
24 2 CY CL 11 RIP RAP O 19
� 50
if
(D
23
CA
� ♦ WqY
24 CY CLASS II RIP RAP / FrpR/Vq Raw I
I r SEE DETAIL THIS SHEET
°
UME 3
21
0 -EX CULWR7�IE = 2
O BE REMOVED I I I I
I /"'�, IE OUT = 21.6
I 20 FT 2 CY CL 11 RIP RAP I I ' FLUME 5 I Qq 17
IE IN = 22.6
'((t1111 D.E. 120 FT 36 IE OUT = 22-1 I I I
40 �2 CY CL limp RAP
I/ O
o
D.E.
8
20
1h I ''I
fT SWALE 3/ / I G
_
I I DIf
. 33> I
SEEEC�AIL 7HIISPSH� I I 32
_.�
O
SWALE 5 O I 16 I I;
(� ! 20 CY CLASS II RIP RAP f I
�j SEE DETAIL THIS SHEET SWALE _
x�'
o
22
•l Y CLASS 11 RIP RAP
TAIL THIS SHEET I !
I. i — I fill
FLUME 2 '!
lE IN = (22.69: IE OUT = 2219
fi
� �:,.� 2 IP RAP �_ ��% � ' 2 CY CL II RIP RAP; / 1
ij B SHEET i I x
1i
\ II
I
26 CY CL 11 RIP RAP 28
SEE DETAIL THIS SHEET'
I °
25s
I / r 10CYCLIIRIP RAP
;
III, ,Ii
SWALE 4 ` SEE DETAIL 1HIS SHEET
/ s
SWALE 8
O000,00
1' O
1 ftif
ii
D.E.
1
I
�' i
FLUME 1 1 I x'' I'' I t ; %•'
it
IE IN = 22.78
1 OUT 22.28 °� GUM DRIVE G�� t
2 CY II R AP % S E� � V' W �� Pit;! If ,
FT DIVA �, 1 s 1 f
45 if „
M X
- INST/''
!' 1 1 CE OR BANK STABILI 77
INSTALL/�Cl1E MATTING I -
-----�----- -------------- --
........-.-..-.-.
------
---------------
S FOR BANK STABILIZA710k O -- " �: -� = = _
1 =^" = =
3 1 .-
1 t77�\�, v
52 �� A�
}
- - - - - - - - - ......
- -
j S "` - - \�
-'" \ FLOW LINE IE = 19.0
'"^ , PIPE IE = 18.0
6 CY CLASS II RIP RAP
CULVERT 2
(2) - 85 LF 54' RCP'S
BURIED 1 FT
FLOW LINE IE = 18.7
PIPE IE - 17.7
10 CY CLASS u RIP RAP- -
LICENSE # C-2710
COASTAL
SITE
DESIGN,PC
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. Box 4041
Wilmington, NC 28406
[phone]
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DATE.- 12-77-75
HORZ. SCALE. 1" = 100'
VERT. SCALE N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No.EC5o, EC9

tz
C6
IV
TOp OF BERM EL = 23.0
\20 CY CLASS II RIP RAP 3:1 SIDESLOPES
SEE DETAIL SHEET EC5
10 FT R,?o 0
10:1 SIDESLOPES oo,
. 157.5 FT �
31 SIDESLoPES
BORING B9
• ECS REPORT DATED 8-13-15
EX GROUND ELEV = 23.5
n+WT DEPTH = 42.0'
WT ELEV. = 20.0
BASIN BOTTOM = 14.0
EMERGENCY SPILLWAY
EL = 22.0
33 CY CL 11 RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GEOTECH
FILTER FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
_--OUTLET STRUCTURE
10 CY a B RIPRAP 1.5 FT DEEP
PLACE NONWOVEN GE07ECH FILTER
FABRIC UNDER RIPRAP
SEE DETAIL (THIS SHEET)
NOTES,•
1. TEMPORARY SKIMMER TO BE INSTALLED ON PRIMARY OUTLET STRUCTURE BOX
AND TO REMAIN IN PLACE UNTIL SITE IS PERMANENTLY STABILIZED PER NCDENR/LQS
SEDIMENTATION AND EROSION CONTROL PERMIT. SEE SKIMMER DETAILS FOR INSTALLATION.
2 GRADE WILL BE 20.1 ONLY IN FRONT OF OUTLET BOX. REMAINING SHELF SHOULD BE
10.1. PP IS THE CENTER OF THE 10.1 SHELF.
J. RIP RAP TO BE PLACED AROUND 774E PERIMETER OF OUTLET BOXES
4. (3) 4 FT x 4 FT PRECAST CONCRETE BOXES OR EQUIVALENT HAND -BUILT.
5. SKIMMER = 8.0' SKIMMER WITH 26' ORIFICE DIAMETER. TOP OF BOX AT
GRP� for
8" PVC SCREW PLUG EL= 20.8 F ABR�CI'��
8' ORIFICE ASSEMBLY 4" 6.0 FT WEIR (2 FT EA x 3)
4' EL= 20.3
8" CROSS
SKIMMER SKIMMER CONNECTION
TO BE CAPPED ONCE
SKIMMER IS REMOVED �
� WSEL = 19.5 INV = 19.5
INV= 19.0
12' 2 FT SUMP
S B FOR CLEANOUT
12'
1 /
8' CAP TO REMAIN UN71L SKIMMER
IS REMOVED. THEN DRILL 3.5' HOLE IN CAP
POND BOTTOM
ELEV= 14
TEMPORARY POOL ELEVATION = 20.3'
SURFACE AREA 0 ELEV. 20.3 = 50,696 -V
STORAGE 0 ELEV. 20.3 = 38,906 CF
WET BASIN 1
1" = 20'
3
1�
a 8 RIP RAP W/ GEOTEX
NONCIvEN ALTER FABRIC
(TO SURROUND ENTIRE
24' HOPE OUTLET STRUCTURE)
OUTLET PIPE
I i
SECTION VIEW
WET BASIN 1
OUTLET STRUCTURE DETAILS
^I, , T TO SCALE
FOREBAY APRON
150 CY CL 11 RIP RAP
SEE DETAIL THIS SHEET
30 'Y �SHEETEC5
SEE AIL
FOREBAY BOTTOM = 1$.0
26 CY CL 11 RIP RAP
SEE DETAIL SHEET EC5
i
TOP OF BERM EL _ 23.0 -
1
1
1
1 10 CY CL 11 RIP RAP
SEE DETAIL SHEET EC5 1 1
1 1
20 10 0 20 40 60
SCALE IN FEET: 1 "= 20'
FABRICATED GRATE TOP
BARS,
cei UANIZED, OR
ALENT
ALL SLOPES
3:1 MAXIMUM
(TYPICAL AT ALL STORM OUTFALLS TO POND)
VARIES 16.5'
FOREBAY VOLUME
OF REQUIRED
WSEL = 19.5
STORAGE, TYPICAL
� �
oOP
RIP RAP 1.5 min.
31min. BOTTOM = 14 DITCH
0
1 OUTLET
NON WOVEN FILTER FABRIC UNDER RIP RV PR07EC71ON
o AS ON PLANS
EOREBAY SECTION DE TA I L
NOT TO SCALE
WETLANDS PLANTINGS:
THE FOLLOWING SPECIES OF WE7IANDS VEGETATION ARE SUITABLE FOR
PLANTING ALONG THE 10:1 VEGETATED SHELF -
PLANTS SUITED FOR SHELF THAT'S UNDERWATER
- SAGITTARIA LANCIFOLIA (BULL TONGUE)
- SAGITTARIA LA71FOIJA (DUCK POTATO)
- SAURURUS CERNUUS (LIZARDTAIL)
PLANTS SUITED FOR SHELF THAT'S ABOVE WATER
- ASCLEPIAS INCARNATA (SWAMP MILKWEED)
- CAREX TENERA (QUILL SEDGE)
- CHELONE GLABRA (WHITE TURTLEHEAD)
SF OF 10.1 SHELF UNDER WATER = 3,573 SF / 200 = 17.9 X 50 = 895 PLANTS REQUIRED
895 / 3 = 298 PLANTS OF EACH OF THE THREE LISTED ABOVE MUST BE PLANTED
SF OF 10.1 SHELF ABOVE WATER = 3,730 SF / 200 = 18.7 X 50 = 935 PLANTS REQUIRED
935 / 3 = 312 PLANTS OF EACH OF THE THREE LISTED ABOVE MUST BE PLANTED
IF ONE OR MORE OF THE SUGGESTED SPECIES IS UNAVAILABLE, APPROPRIATE
WETLANDS VEGETATION COMMON TO THE COASTAL NORTH CAROLINA REGION
MAY BE SUBSTITUTED. SEE CH 9 OF STATE STORMWATER BMP MANUAL
FOR UST OF OTHER RECOMMENDED WETLANDS PLANTS
N07E&
1. ALL BUILDING ROOF DRAINS MUST BE DIRECTED INTO THE STORM WATER SWALES
INTO THE S7REET/PARKING LOT.
2. PORTABLE PUMP TO BE USED TO DRAIN POND IN CASE OF EMERGENCY. PUMP TO BE
PLACED ON TOP OF BERM WITH SCREEN ATTACHED TO HOSE INLET AND COVERED WITH STONE.
HOSE OUTLET TO DRAIN ACROSS STABLE UPLAND AREA SUFFICIENT TO RESTRAIN EROSION.
3. POND SIDESLOPES TO BE PERMANENTLY VEGETATIVELY STABILIZED,
4. BASIN TO BE RECORDED IN A DRAINAGE EASEMENT.
C
0
6'
46.0 FT TOP OF
EMBANKMENT
ELEVA710N = 23.0
CLASS 11 RIPRAP 1.5 FT DEEP `NON WOVEN FILTER FABRIC
EMERGENCY SPILL WA Y
FRONT VIEW - BASIN 1
NOT TO SCALE
I
.�i 1 i► ��I
4-0' 4-0"
SEE DETAIL
o THIS SHEET
FOR
TRASH RACK
2 FT WEIR CUT 2 FT WEIR
8' ORIFICE ASSEMBLY
CL
8' CAP W/3.5' HOIf_ \� °D
iu-rnrn CAnnlnA=n mA-
6'
4-0'
FT WEIR CUT
KNOCK OUT INTERIOR WALLS TO
ELEV. 19.0 SO THAT BOXES
FUNCTION AS ONE STRUCTURE
(ALL SEAMS TO BE GROUTED)
BOX PLAN VIEW
WET BASIN 1
OUTLET STRUCTURE DETAILS
NOT TO SCALE
NOTE COLLAR TO BE POURED AFTER 6'
PIPES ARE IN PLACE,
REINFORCING AS NECESSARY.
• 5'. -
d
s.
MIN
WET BASIN
ANTI -SEEP COLLAR
NOT TO SCALE
VARIES
I0' 6'
3
16'
EMBANKMENT TOP= 23.0 (SETTLED), = 23.25 (CONSTRUCTED)
EMERGENCY SPILLWAY = 22.0
�Q TOP OF GRA 7E = 20.8
STATE STORAGE WEIR CUT = 20.3 STATE STORAGE = 38 906 CF
NORMAL WSEL= 19.5 (MIDDLE OF 10.1 SHELF) 'K7
(3) 28
"
24 HDPE
OM OF 10.1 SHELF EL= 19.0
-SEEP COLLAR, BOTTOM a= 17.4
TOM SWM STRUCTURE a= 15.5MENT
X_�-
-
IE- 19.0B07
CLEANOUT EL = 15.0aNn-sEEP
COLLAR,
= 14.0
SEE DETAIL
i 7�/���//%
10'
5'
WIDE
V t
10:1 SHELF,
« 'W
VARIES
25'
EMBANKMENT SECTION
NOT TO SCALE
LICENSE # C-2710
COASTAL
SITE
DESIGN,pc
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. Box 4041
Wilmington, NC 28406
(910) 791- 4441
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DA TE.• 12-17-15
HORZ. SCALE: 1" = 20'
VERT. SCALE: N/A
DRA WN B Y.• RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No. EC60f EC9

COIR FIBER BAFFLE MATERIAL PROPERTY REQUIREMENTS
MATERIAL
100% COCONUT FIBER
THICKNESS
0.30 IN MIN.
TENSILE STRENGTH (WET)
900 X 680 LB/FT MIN
ELONGATION (WET)
69% X 34% MAX
FLOW VELOCITY
10-12 FT/SEC
WEIGHT
20 oz/SY (680 G/1/"2) MIN
MINIMUM WIDTH
6.5 FT
OPEN AREA 50% MAX
STEEL POST
EARTHEN EMBANKMENT
OUTLET, CLASS ll
STEEL POST SHOULD BE APPROX 1-3/8' WIDE MEASURED PARALLEL
TO FENCE AND HAVE A MIN. WEIGHT OF 1.25 LB/LINEAR FT AND BE
EQUIPPED WITH AN ANCHOR PLATE WiTH MINIMUM AREA OF 14.0 IN^2.
STEEL POST SHOULD BE INSTALLED AT MAX. 4 FT SPACING AND
DRIVEN INTO GROUND MIN. OF 2 FT.
INLET ZONE
25% OF SURFACE AREA
BAFFLE (TYPICAL)
FIRST CHAMBER
25% OF SURFACE AREA
SECOND CHAMBER
25% OF SURFACE AREA
OUTLET ZONE
25% OF SURFACE AREA
BF. TEMPORARY BAFFLES
Practice 6.65
NOT TO SCALE
M= 3
VARIES n= 0.03
_
r 3
LINED WITH REINFORCING MATTING AND SEED
PER SPECIFICAAONS OR SOD.
SWALES 1-7
3: 1
GRASSED CHANNEL
N. T. S
WATER LEVEL
8.5"
END VIEW
BASIN
ORIFICE SIZED DRILLED IN CAP
1
2.6"
2
3.0 "
3
1 2.4"
4
2.0"
sK CUSTOM SKIMMER DETAIL
Practice 6.64
NOT TO SCALE
- BAFFLES TO BE INSTALLED PER TEMPORARY BAFFLES DETAIL
TOP OF EMBANKMENT EL
INSTALL POLE
WITH CLEAN OUT
DEPTH MARKED.
CANNOT BE TOP
OF POLE
BOTTOM EL
EMERGENCY SPILLWAY EL
4 FT
CLASS B STONE
(4' X 4' X 1' MIN)
TEMPORARY SEDIMENT BASIN SUMMARY
IMMER
SEE DETAIL THIS SHEET)
1 FT
2' 14.0'
3
18"
1 L_' 1= 1r
3 117
b = 5'
SEE EROSION CONTROL CALCULATIONS FOR
TD VELOCITY CALCULATIONS.
TEMPORARY DIVERSION DETAIL
Practice 6.20
NOT TO SCALE
8" HDPE CAP
wl VENT HOLES
1/2" WOODEN DOWEL (RETAINING FLOAT)
2" REPURPOSED STYROFOAM
FLOAT /8" SINGLE WALL CORRIGATED HDPE
HDPE TEE
8" HDPE CAP
(SEE CHART FOR ORIFICE SIZE OF HOLED DRILLED IN CAP)
FRONT VIEW
HDPE
TOP OF
BERM
FLEXIBLE RUBBER COUPLING
PLAN VIEW
SEE DENR STANDARDS & SPECS.
FOR COMPLETE DESIGN CRITERIA & MAINTENANCE
AREA
ELEVATIONS
VOLUME
SKIMMER
CLEANOUT
DEPTH (FT)
FROM 607OU
SEDIMENT
BASIN J
SURFACE
AREA (SF)
TOP OF EMERGENCY BASIN OUTFALL
BERM SPILLWAY BOTTOM INV EL
REQUIRED PROVIDED
(CF) (CF)
PIPE ORIFICE
SIZE RADIUS
*1
45,405
23 22.0
19.5
18.8
27,666
38,906
8.0
2.6
1.0
2
24,759
25 24
21.5
21.4
33,048
55,428
8.0
3.0
1.0
3
16,695
26 25
225
22.4
16,344
34,520
8.0
24
1.0
4
13,162
29 28
26
25.9
6,768
23,718 1
8.0
2.0
1.0
TFALL EL
1
*SEE EC6 FOR BASIN DETAIL AND SKIMMER CONNECTION
TO OUTLET BOX. BASIN 1
DOESN'T EMBANKMENT CROSS SEC
)lON
TEMPORARY SEDIMENT T BASIN
N
SB EMBANKMENT CROSS SECTION
NOT TO SCALE
Construction Road Stabilization
Specification 16.80 - Construction Specifications
1. Clear roadbed and parking areas of all vegetation, roots and other
objectionable material.
2. Ensure that road construction follows the natural contours of the terrain if
it is possible.
J. Locate parking areas on naturally flat areas if they are available. Keep
grades sufficient for drainage but generally not more than 2 to 3%
4. Provide surface drainage, and divert excess runoff to stable areas by using
water bars or turnouts (References: Runoff Control Measures).
5. Keep cuts and fills at 2 1 or flatter for safety and stability and to
facilitate establishment of vegetation and maintenance.
6. Spread a 6-inch course of 'ABC' crushed stone evenly over the full width of
the road and smooth to avoid depressions.
7. Where seepage areas or seasonally wet areas must be crossed, install
subsurface drains or geotextile fabric cloth before placing the crushed stone
(Practice 6.81, Subsurface Drain).
8. Vegetate all roadside ditches, cuts, fills and other disturbed areas or
otherwise appropriately stabilize as soon as grading is complete (References:
Surface Stabilization).
9. Provide appropriate sediment control measures to prevent off -site
sedimentation.
Maintenance
Inspect construction roads and parking areas periodically for conditioi of
surface. Topdress with new gravel as needed. Check road ditches and other
seeded areas for erosion and sedimentation after runoff-produdng rains.
Maintain all vegetation in a healthy, vigorous condition. Sediment -producing
areas should be treated immediately.
CE
Temporary Gravel Construction Entrance Exit
Specification 16.06 - Construction Specifications
1. Clear the entrance and exit area of all vegetation, roots and other
objectionable material and properly grade it.
2. Place the gravel to the specific grade and dimensions shown on the plans and
smooth it.
J. Provide drainage to carry water to a sediment trap or other suitable outlet.
4. Use geotextie fabrics because they improve stability of the foundation in
locations subject to seepage or high water table.
Main tenonce
Maintain the gravel pad in a condition to prevent mud or sediment from leaving
the construction site. This may require periodic topdressing with 2-inch stone.
After each rainfall, inspect any structure used to trap sediment and dean it
out as necessary. Immediately remove all objectionable materials spillee
washed, or tracked onto public roadways /
Temporary Seeding
Specification J 6.10 - Specifications
Complete grading before preparing seedbeds and install all necessary erosion
control practices, such as dikes, waterways and basins. Minimize steep slopes
because they make seedbed preparation difficult and increase the erosion hazard.
If soils become compacted during grading, loosen them to a depth of 6-8 inches
using a ripper, harrow, or chisel plow.
Seedbed Preparation
Good seedbed preparation is essential to successful plant establishment A good
seedbed is well -pulverized, loose and uniform. Where hydroseeding meGic;s are
used, the surface may be left with a more irregular surface of large cods and
stones.
Liming - Apply lime according to soil test recommendations. If the pH (acidify)
of the soil is not known, an application of ground agricultural limestone at the
rate of 1 to 1 1/2 tons/acre on coarse -textured soils and 2-3 tons/ocres on
fine -textured soils is usually sufficient Apply limestone uniformly and
incorporate into the top 4-6 inches of soil. Soils with a pH of 6 or higher
need not be limed.
Fertilizer- Base application rates on soil tests. When these are not possible,
apply a 10-10-10 grade fertilizer at 700-1,000 Ib.locre. Both fertilizer and
lime should be incorporated into the top 4-6 inches of soil. If a hydraulic
,seeder is used, do not mix seed and fertilizer more than 30 minutes before
application.
Surface roughening- If recent tillage operations have resulted in a loose
;surface, additional roughening may not be required except to break up large
clods. If rainfall causes the surface to become sealed or gusted, loosen it
just prior to seeding by disking, raking, harrowing, or other suitable methods,
Groove or furrow slopes steeper than J.1 on the contour before seeding (Practice
6:03, Surface Roughening).
Plant Selection
Select an appropriate species or species mixture from Table 6.10a, for seeding
in late winter and early spring, Table 6.10b for summer, and Table 6.10c for
fall.
Seeding
Evenly apply seed using a cyclone seeder (broadcast), drill, cultipacker seeder,
or hydroseeder. Use seeding rates given in Table 6.10a-6.10c. Broadcast seeding
and hyroseeding are appropriate for steep slopes where equipment cannot be
driven. Hand broadcasting is not recommended because of the difficulty in
achieving a uniform distribution. Small grains should be planted no more than 1
inch deep, and grosses and legumes no more than 1/2 inch. Broadcast seed must
be covered by raking or chain dragging, and then lightly firmed with a roller a
cultipaclker. Hydroseeded mixtures should include a wood fiber (cellulose) mulch.
RU china
The use of appropriate mulch will help assure establishment under normal
conditions and is essential to seeding success under harsh site condition
(Practice 6.14, Mulching). Harsh site conditions include.
-seeding in fall for winter cover (wood fiber mulches are not considered
adequate for this use),
-slopes steeper than 3:1,
-excessively hot or dry weather,
-adverse soils(shollow, rocky, or high in day or sand), and
-areas receiving concentrated flow.
If the area to be mulched is subject to concentrated waterflow, as in channels,
anchor mulch with netting (Practice 5,14, Mulching).
Sediment Fence (ilt F n )
Specification 6.62 - Construction Specifications
MATERIALS
1.Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon,
polyester, or polyethylene yam, which is certified by the manufacturer or
supplier as conforming to the requirements shown in Table 6.62b. Synthetic
filter fabric should contain ultraviolet ray inhibitors and stabilizers to
provide a minimum of 6 months of expected usable construction life at a
temperature range of 0 to 120 F.
ZEnsure that posts for sediment fences are 1.33 lb/linear ft steel with a
minimum length of 4 ft. Make sure that steel post have projects to facilitate
fastening the fabric.
3.For reinforcement of standard strength filter fabric, use wire fence with a
minimum 14 gauge and a maximum mesh spacing of 6 inches.
Table 6.62b
Specifications For Sediment Fence Fabric
Physical Property Requirements
Filtering Efficiency - 85% (mm)
Tensile Strength at Standard Strength- 30 Ib/lin in (min)
Extra Strength- 50 Ibllin in (mm)
Slurry Flow Rate - 0.3 gal/sq ft/min (min)
CONSTRUCTION
1.Construct the sediment barrier of standard strength or extra strength
synthetic filter fabrics.
2Ensure that the height of the sediment fence does not exceed 18 inches above
the ground surface. (Higher fences may impound volumes of water sufficient to
cause failure of the structure.)
3Construct the filter fabric from a continuous roll cut to the length of the
barrier to avoid joints. When joints are necessary, securely fasten the filter
cloth only at a support post with overlap to the next post.
4.Support standard strength filter fabric by wire mesh fastened securely to the
up slope side of the posts using heavy duty wire staples at least 1 inch long,
or tie wires. Extend the wire mesh support to the bottom of the trench.
5 When a wire mesh support fence is used, space posts a maximum of 8 ft apart.
Support posts should be driven securely into the ground to a minimum of 18
inches.
6.Extra strength filter fabric with 6ft post spacing does not require wire mesh
support fence. Staple or wire the filter fabric directly to posts.
ZExcovate a trench approximately 4 inches wide and 8 inches deep along the
proposed line of posts and upslope from the barrier (figure 6.62a).
8.6ackfill the trench with compacted soil or gravel placed over the liter
fabric.
9.Do not attach fli ter fabric to existing trees.
Maintenance
Inspect sediment fences at least once a week and after each rainfall. Make any
required repairs immediately.
Should the fabric of a sediment fence collapse, tear, decompose or become
ineffective, replace it promptly. Replace burlap every 60 days.
Remove sediment deposits as necessary to provide adequate storage volume for th
next rain and to reduce pressure on the fence. Take care to avoid undermining
the fence during cleanout.
Remove all fencing materials and unstable sediment deposits and bring the area
to grade and stabilize it after the contributing drainage area has been property
stabilized.
SK
Skimmer Sediment Basin
Specification 6.64.7 - Construction Specifications
1. Clear, rub, and strip the ea under a grr►b ti eat of all tation an
roog chat Remove all sir cg sal coma�'R inQQ �ijg cflnrnts o rC . m n
an sto�i or dispose o i t erl . Haul ob Jo ble ma erial tole
¢esibgnOr
at sa area. la t�rhp�rary s (men on a, measures blow
Dasi as needed
2 Ensure that fall material for the AmtsnnkmAnt is fr" of r. fe W,,.,,i
emu Oro,
anic otter, ono tner op tionobie at the fill in
i s not b c I.n i anit moo le compact ri . ie embankment
inches to al ow err settJement.
the basin to the sp fie I dimensions. Prevent t¢e skimming device
orpri gettlinq into the �nuk�y xcavgtin a al ow pit qn the skimmer ar
providing a low support undere skunr�ier os�one ar timer
4. Place the barrel t ipal 4-inch Schedule 40 pVC �ip) on a firm, smooth
foundation of , soil o t use ervoug ���al ch s rid,
gravel, or crush q one as bbadk�iParoun� a pi e. Pla ehe file a7enal
qeo ' the pipe spi( wge in 4-in a IQyers Z co{� W i under an� a Duna
e i e to pt l�dsj UUff same aaensffy as e aaribiic►nen are ust
e a en not t ra�$e the p' a frgm the firm c ac w/th its ouf: Jon hrTien
compacting un�er the pipe launches.
Place a minimum d th of 2 ter t of cols acted backfill over the pi a spillway
before crossin if i c truc> ip ant. In no�ase should tl°►e ekment
gonduit (�e insialle:Py cueing wren► rough the am after the ernAan
is complete.
5. Assemble the skimmer following the manufacturers instructions, or as designed.
6. Lay the a bled skyrim�r on the bolt o the b in wi{� a flex le
Joint at of the bard a At flexile ' t the d�ir
and os� oIon a skimmer ovror qer excawt pp�ion wort e re a
to � thethskCimmmerm a the e for magnttherheance. of thb basin. its w be used
7.
en
in, undisturbed. sal to
gn width,
operatio
ar n
in a trench. the es ma be soured with 8-incfirsf es or p s. 1Eie f- '
ust ¢ Ion to eCt d down the sl rid exi ant s� qr
he wiopth o>9 t ric m s be piece, e{ gpih or spliced; gl in
water an et ��dderr th�abric. a len th of "theabri is insu Q lent fpr the
entire �engt� othe spillway, mu�ti le secf�ons spanninge cornp e e width,
�ibe used The per s tion�s� should overlap the lower Fon�s) o
water cannot aw under inf i nc. Secure the upper e� an sides
of the fabric in a trench with staples or pins. (Adapted from A Manual for
Desi�ning, Installing and Mai taining Skimmer Sediment Basins.' February,
1999. J. W. Fairdoth elk Son .
8. 1 lets-Discha ge water into tthe basin in a m nner fp ppr�event erosion. Use
�ernparar s�otpe drains or diversions with owlet ro�ection to di{ sad' ent-
a en wa err o the upper en of the pool area fo improve basin trap elciency
9. Erosion cant ol- -Construct the structur so that the dist�irbed r is
minims eel. �i surface water aria �r bare areas. Oomple e
embanzkment be �re th&are , is gl red to Nze a emerg a i�lwa�
einn en an all o err istu areas ve a crest o e prin dal
spillway immediately after construction (References Surface Stabilzation .
10. After all the s i ent- oduq' areas h vo b�r, an y stabilized
remove the suucture Fd oll % unsfabpe sedtme�it. 000 the area to
blend with the adjoining areas and stabilize properly References. Surface
Stabilization).
I spect skimmer sediment basins at least weedy and after each significant
(ong-ho(f inch or reater) rainfall event d ax irgmedia ei . R ova
seamen[ an restbgre� basip to ifs in bn ion e�i seir►ent
accurst later to on hal the hits 0 b ffie. u t er►m t
one side so that the �irpent ui► eatth 1 gge a cavoted. ca 1e �he
iment from the entire basin,i�st arouthe sCilnmer aref cell.
a e sure page o ion growing in e o tom o the basin does not h down
e skimmer
Fe
a skim err is d eel nth tra and then is water 'n the b si , u ally
� op�ie r eiowgi� mace the tin bah 4p and down onYc2.4 sand r s ore flow. Ifthis diesnowgnCpull a skimmer 9► to
side 7f the qs and rem�vethe debris. so heck the orifice inside the
I r o see it i is dogge ' if so ranove the ebris.
If the skimmer arm or bard pipe is dogged, the orifice can be removed and
the obstruction cleared with a plumber's snake or by flushing with water. Be
sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs
with fabric that spans the full width of the spillway. Check the embankment
spillways, and outlet for erosion damage, and inspect the embankment for
piping and settlement Make ail necessary repairs immediately. Remove all
trash and other debris from the skimmer and pod areas.
Freezing weather can result in ice forming in the basin. Some special
precautions should be taken in the winter to prevent the skimmer from
plugging with ice.
Land Gradin
Specification 16.02 - Construction Specifications
1.Construct and maintain all erosion and sedimentation control practices and
measures in accordance with the approved sedimentation control plan and
construction schedule.
2-Remove good topsoil from areas to be graded and filled, and preserve it for
use in finishing the grading of all critical areas.
3.Scarify areas to be topsoiled to a minimum depth of 2 inches before placing
topsoil (Practice 6.04, Topsoiling).
4.Clear and grub areas to be filled to remove trees, vegetation, roots, or other
objectionable material that would affect the planned stability of the fill.
5.Ensure that All material is free of brush, rubbish, rocks logs, stumps
building debris, and other materials inappropriate for constructing stable
fills.
6.Place all fill in layers not to exceed 9 inches in thickness and compact the
layers as required to reduce erosion, slippage, settlement, or other related
problems.
ZDo not incorporate frozen material or soft, mucky, or highly compressible
materials into fill slopes.
&Do not place All on a frozen foundation, due to possible subsidence and
slippage.
9.Keep diversions and other water conveyance measures free of sediment during
all phases of development
lallandle seeps or springs encountered during construction in accordance with
approved methods (Practice 6.81, Subsurface Drain).
11.Permanently stabilize all graded areas immediately after final grading is
completed on each area in the grading plan. Apply temporary stabilization
measures on all graded areas when work is to be interrupted or delayed for 30
working days or longer.
IZEnsure that topsoil stockpiles, borrow areas, and spoil areas are adequately
protected from erosion with temporary and final stabilization measures, including
sediment fencing and temporary seeding as necessary.
Maintenance
Periodically check all graded areas and the supporting erosion and sedimentation
control practices, especially after heavy rainfalls. Promptly remove all
sediment from diversions and other water -disposal practices. If washouts or
breaks occur, repair them immediately. Prompt maintenance of small eroded areas
before they become significant gullies is an essential part of an effective
erosion and sedimentation control plan.
Temporary Seedina (continued
Table 6.10o - Temporary Seeding Recommendation for Late Winter and Early Spring
Seeding mixture
Species- Rye(groin), Annual lespedeza (Kobe in Piedmont and Coastal Plain
Rate (Iblacre)- 120
Omit annual lespedezo when duration of temporary cover is not to extend beyond
June
Seeding dates -Coastal Plain - Dec. 1 - Apr. 15.
Soil amendments- Follow recommendations of soil tests or apply 2,000 Iblacre
ground agricultural limestone and 750 Ib/acre 10-10-10 fertilizer.
Mulch -Apply 4,0001b/acre straw. Anchor straw by tacking with asphalt, netting
or a mulch anchoring tool. A disk with blades set nearly straight can be used
as a mulch anchoring tool.
Maintenance - Refertilize if growth is not fully adequate. Reseed, rerertilize
and mulch immediately following erosion or other damage.
Table 6.10b - Temporary Seeding Recommendations for Summer
Seeding mixture
Species -German millet
Rate(lb/acre)- 40
Seeding dates-Coostd Plain- Apr. 15-Aug. 15
Soil amendments -Follow recommendations of soil tests or apply ZOOC,Iblacre
ground agricultural limestone and 750 Iblacre 10-10-10 fertilizar.
Mulch -Apply 4,000 Iblacre straw. Anchor straw by tacking with asphalt netting
or a mulch andwing tool. A disk with blades set nearly straight ca, be used
as a mulch anchoring tool.
Maintenance-Refertilize if growth is not fully adequate. Reseed, referiilize
and mulch immediately following erosion or other damage.
Table 6.10c - Temporary Seeding Recommendation for Fall
Seeding mixture
Species-Rye(grain)
Rote(lb/acre) - 120
Seeding dates - Coastal Plain and Piedmont -Aug 15 - Dec. 30
Soil amendments - Follow soil tests or apply 2,000 lb./acre ground agriculturei
limestone and 1,000 Iblacre 10-10-10 fertilizer.
Mulch- Apply 4,000 Iblacre straw. Anchor straw by tacking with asphalt
netting, or a mulch anchoring tool. A disk with blades set nearly straight can
be used as a mulch anchoring tool.
Maintenance- Repair and referNize damaged areas immediately. Topdress with 50
Ib/acre of nitrogen in March, if it is necessary to extend temporary cover
beyond June 15, overseed with 50 Ib/acre Kobe (Piedmont and Coastal Plain)
OP
Outlet Stabilization Structure
Specification 16.41 - Construction Specifications
1. Ensure that the subgrode for the filter and riprap follows the requred lines
and grades shown in the plan. Compact any fill required in the a grade to
the density of the surrounding undisturbed material. Low areas in the
subgrode on undisturbed sod may also be filled by increasing the riprop
thickness.
2. The riprap and gravel filter must conform to the specified grading limits
shown on the plans.
J. filter cloth, when used, must meet design requirements and be picperly
protected from punching or tearing during installation, Repair any damage by
removing the riprap and placing another piece of filter cloth over the
damaged area. A# connecting joints should overlap a minimum cf I ft. if
the damage is extensive, replace the entire Eater cloth.
4. Rprap may be placed by equipment, but take care to avoid damaging the
filter.
5. The minimum thickness of the riprap should be 1.5 times the maxmum stone
diameter.
6. Riprap may be field stone or rough quarry stone. It should be ho-d, angular,
highly weather -resistant and well graded.
6. Construct the apron on zero grade with no overfall at the and. Make the top
of the riprap at the downstream end level with the receiving area or slightly
below it.
8. Ensure that the apron is property aligned with the receiving stream and
preferably straight throughout its length. if a curve is needed to fit site
conditions place it in the upper section of the apron.
9. Immediately after construction, stabilize all disturbed areas with vegetation
(Practice 6.10, Temporary Seeding, and 6.11, Permanent Seeding).
Maintenance
Inspect riprap outlet structures after heavy rains to see if any erosion around
or below the riprap has taken place or if stones have been dislodged
Immediately make ail needed repairs to prevent further damage.
Permanent Seeding
Specifications 16.11 - Specifications
Seedbed Requirements
Establishment of vegetation should not be attempted on sites that are unsuitable
due to inappropriate soil texture (Table 6.110), poor drainage, concentrated
overland flow, or steepness of slope until measures have been taken to correct
these problems.
To maintain a good stand of vegetation, the soil must meet certain minimum
requirements as a growth medium. The existing soil should have these criteria:
- Enough fine-grained (silt and day) material to maintain adequate
moisture and nutrient supply (available water capacity of at least .05
inches water to I inch of soil).
- Sufficient pore space to permit root penetration.
- Sufficient depth of soil to provide an adequate root zone. The depth to rock
or impermeable layers such as hardpans should be 12 inches or more, except on
slopes steeper than 2.1 where the addition of soil is not feasible.
- A favorable pH range for plant growth, usually 6.0-6.5.
- Freedom from large roots, branches, stones, large clods of earth, or trash of
any kind. Clods and stones may be left on slopes steeper than 3:1 if they are
to be hydroseeded.
If any of the above criteria are not met -Le., if the existing soil is too
coarse, dense, shallow or acidic to foster vegetation -special amendments are
required. The soil conditioners described below may be beneficial or,
preferably, topsoil may be applied in accordance with Practice 6.04, Topsoiling.
Soil Conditioners
In order to improve the structure or drainage characteristics of a soil, the
following material may be added. These amendments should only be necessary
where soils have limitations that make them poor for plant growth or for fine
turf establishment (see Chapter 3, Vegetative Considerations).
Peat -Appropriate types are sphagnum moss peat, hypnum moss peat, reedsedge peat,
or peat humus, all from fresh -water sources. Peat should be shredded and
conditioned in storage piles for at least 6 months after excavation.
Sand -dean and free of toxic materials
Vermiculite -horticultural grade and free of toxic substances.
Rotted manure -stable or cattle manure not containing undue amounts of straw or
other bedding materials.
Thoroughly rotted sawdust- free of stones and debris. Add 6 Ib. Of nitrogen to
each cubic yard.
Sludge -Treated sewage and industrial sludges are available in various forms:
these should be used only in accordance with local, State and Federal
regulations.
Species Selection
Use the key to Permanent Seeding Mixtures (Table 6.11b) to select the most
appropriate seeding mixture based on the general site and maintenance factors.
A listing of species, including scientific names and characteristics, is given
in Appendix 8.02.
Seedbed Preparation
Install necessary mechanical erosion and sedimentation control practices before
seeding, and complete grading according to the approved plan.
Lime and fertilizer needs should be determined by soil tests. Soil testing is
performed free of charge by the North Carolina Department of Agriculture soil
testing laboratory. Directions, sample cartons, and information sheets are
available through county agricultural extension offices or from NCDA. Because
the NCDA soil testing lab requires 1-6 weeks for sample tum-around, sampling
must be planned well in advance of final grading. Testing is also done by
commercial laboratories.
When soil test are not available, follow rates suggested on the individual
specification sheet for the seeding mix chosen (Tables 6.11c through 6.11v).
Applications rates usually fall into the following ranges:
- Ground agricultural limestone
Light -textured, sandy sots; 1-1 1/2 tons/acre
Heavy textured, clayey soils 2-3 tons/acre
- Fertilizer.
Grasses 800-1200 Iblacre of 10-10-10 (or the equivalent)
Grass -legume mixtures: 800-1200 Ib/acre of 5-10-10 (or the equivalent)
Apply lime and fertilizer evenly and incorporate into the top 4-6 inches of soil
by disking or other suitable means. Operate machinery on the contour. When
using a hydroseeder, apply lime and fertilizer to a rough, loose surface.
Roughen surfaces according to Practice 6,03, Surface Roughening.
Complete seedbed preparation by breaking up large clods and raking into a
smooth, uniform surface (slope less than 3,1) Fill in or level depressions than
can collect water. Broadcast seed into a freshly loosened seedbed that has not
been sealed by rainfall.
Table 6.11s - Seeding No. 4CP for.
Well -Drained Sandy looms to Dry Sands, Coastal Plain; Low to Medium -Care Lawns
Seeding mixture
Species - Centipedegrass - Rate - 10-20 Iblacre (seed) or 33 bu/acre (sprigs)
Seeding dates - Mar. - June, (Sprigging can be done through July where water is
available for irrigation.)
Soil amendments - Apply lime and fertilizer according to soil test or apply 300
Iblacre 10-10-10.
Sprigging - Plant sprigs in furrows with a tractor -drown transplanter, or
broadcast by hand.
Furrows should be 4-6 inches deep and 2ft apart. Place sprigs about 2 ft. apart
in the row with one end at or above ground level (Figure 6.11d).
Broadcast at rates shown above, and press sprigs into the top 1 1/2 inches of
soil with a disk set straight so that sprigs are not brought back toward the
surface.
Mulch - Do not mulch
Maintenance - Fertilize very sparingly- 20 Iblacre nitrogen in spring with no
phosphorus. Centipedegrass cannot tolerate high pH or excess fertilizer.
Maintenance
Table 6.11 It - Seeding No. 50P for. Well -Drained Sandy Looms to Dry Sands, • Low
Seeding mixture
Species Rate (Iblacre)
Per, socolo Bahiagrass 50
Sericea lespedeza 30
Common Bermudograss 10
German millet 10
Seeding notes
1. Where a neat appearance is desired, omit sericea
2 Use common Bermudograss only on isolated sites where it cannot become a pest.
Bermudagross may be replaced with 5 Iblacre centipedgross.
Seeding dates - Apr. 1 -July 15
Soil amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Iblacre ground agricultural limestone and 500 Iblacre 10-10-10 fertilizer.
Mulch
Apply 4,000 Iblacre grain straw or equivalent cover of another suitable mulch.
Anchor by tacking with asphalt roving and netting or by crimping with a mulch
anchoring tool. A disk with blades set nearly straight can be used as a mulch
anchoring tool.
Maintenance - Refertiize the following Apr. with 50 Iblacre nitrogen. Repeat
as growth requires. May be moved only once a year. Where a neat appearance is
desired, omit sericea and now as often as needed.
Table 6.11 v - Seeding No. 7CP for. Grass -lined Channels; Coastal Plain
Seeding Mixture
Species - Common Bermudograss - Rate - 40-80 (1/2 Ib/1,000 ft )
Seeding dates - Coastal Plain, Apr - ,oily
Soil amendments - Apply lime and fertilizer according to soil tests, or apply
3,000 Iblacre ground agricultural limestone and 500 Iblacre 10-10-10 fertilizer.
Mulch - Use Jute, excelsior matting, or other effective channel lining material
to cover the bottom of channels and ditches. The lining should extend above the
highest calculated depth of flow. On channel side slopes above this height and
in drainages not requiring temporary linings, apply 4,000 Iblacre grain straw
and anchor strew b sta lin netting over the top.
Y P 9 9
Mulch and anchoring materials must be allowed to wash down �pes where they can
clog drainage de,4ces. 4
Maintenance -A minimum of 3 weeks is required for establish4eiit. Inspect and
repair mulch freojently. Refertilize the following Apr. with 50 Ib/bcre
Refer to Appendix 8.02 for botanical names
LICENSE 13� C-2710 '
COASTAL
SITE
DESIGN,PC
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. Box 4041
Wilmington, NC 28406
[phone]
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CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No.EC80fEC'

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Sheet No. Of
STRUCTURE
AREA
CULVERT 1
151.02 A
CULVERT 2
153.59 A
CULVERT 3
29.37 A
CULVERT 4
NOT IN THIS SUBMITTAL
CULVERT 5
2.44 A

SWALE DRAINAGE AREAS
FLUME DRAINAGE AREAS
r,
WET BASIN 1 DRAINAGE AREA
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STRUCTURE
AREA
SWALE 1
3.47 ACRES
SWALE 2
5.68 ACRES
SWALE 3
1.19 ACRES
SWALE 4
3.00 ACRES
SWALE 5
0.69 ACRES
BMP
AREA
1
15.51 ACRES
PROJECT AREA LINE TABLE
LINE TABLE
TAG
LENGTH
DIRECTION
L1
545.89'
N80'23'02"W
L2
187.94'
N67'25'21 "W
L3
64.04'
S23'16'47"W
L4
64.83'
N51 *34'46"W
L5
40.00'
S39'44'41 "W
L6
78.84'
S46'21'28"E
L7
48.86'
S23'16'47"W
L8
161.76'
S23'16'47"W
L9
80.13'
SO4'28'15"W
L10
112.16'
S00'00'00"E
L11
83.64'
S00'00'00"E
L12
89.11'
S11'04'38"E
L13
68.64'
S00'00'00"E
L14
109.01'
S00'27'17"W
L15
40.29'
S61'00'45"W
STRUCTURE
AREA
FLUME 1
Z23 ACRES
FLUME 2
2.63 ACRES
FLUME 3
1.09 ACRES
FLUME 4
0.57 ACRES
FLUME 5
0.61 ACRES
LINE TABLE
TAG
LENGTH
DIRECTION
L16
39.01'
S12'07'15"E
L17
32.19'
N76'51'23"E
L18
31.44'
S33'20'40"E
L19
77.74'
S27'51'51"E
L20
285.05'
N77'25'3,?"E
L21
64.42'
N76'42'29"E
L22
28.61'
S13'08'1"E
L23
50.01'
N75'44'36"E
L24
27.77'
N13*08'15"W
L25
264.33'
N76'42'29"E
L26
84.62'
N73'47'26"E
L27
139.17'
N11 *16'04"E
L28
448.66'
N08'09'56"E
L29
54.87'
N10*57'11"E
L30
59.10'
N77'33'58"W
CA
45' I R \ W
—22.5 FT 22.5 F
13 FT 13 FT
11 FT 11 FT 5 FT
PLAZA
5 FT MIN.
1 I PLAZA
2087.
27ASPHALT 2 08q
M. V
8" ABC STONE CURBING
M. V (INVERTED PI TCH)
CURBING
FT SIDEWALK
SECTION A -A
STREET CROSS SECTION
N. T. S.
45' IR \ W
22.5 22.5 F
12 FT 12 FT
10FT lo FT 5FT
PLAZA
5 FT ( MIN. 3.1 PLAZA 2"ASPHALT
1 MIN. FT
FT SIDEWALK
M. V
8" ABC STONE CURBING
A (INVERTED PITCH)
CURBING
SECTION C- C
STREET CROSS SECTION
N. T. S.
LICENSE # C-2710 "
COASTAL
SITE
DESIGN,PC
ENGINEERING
LAND PLANNING
COMMERCIAL / RESIDENTIAL
P.O. Box 4041
Wilmington, NC 28406
(910) 791— 4441
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DRAWN BY- RL W
CHECKED B Y.• HSR
PROJECT NO.: 06-0134
Sheet No.2 Of