SW3080401_APPROVED PLANS_20120726

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW����
HOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
C,
❑ HISTORICAL FILE
DOC DATE
D%��
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STORM DRAINAGE AREA MAP \ 3
aM Rom \
Approver! Stormwater Perin Documentz
Constructior In accordance with these documents is
required tby the stormwate: permit. North Carolina
rules require that the stormwater system, designer
Inspect during construction, certify conformity with the
plans and specs, and comfy compliance with the
stormwater rules { 15A 11;,A(; 2H 1008 (j) )
Permit # S 014 Date S5-Z 09
by NC Division of Water quality
Sheet # ��- Revision Date.
GO O GO Lao Leo
Scales I' 60'
Architecture
Interior Design
Land Planning
Project Management
SEAT_ -
22937
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Progress Dates
as-os-oa
OWNERSHIP OF IN5TRUMENT5 OF SERVICE
ALL REPORTS, 5PECIFICATION5, PLANS,
COMPUTER FILES, FIELD DATA, NOTES AND
OTHER DOCUMENTS AND IN5TRUMENT5 OF
SERVICE SHALL REMAIN THE PROPERTY OF
THE DE51GN PROFESSIONAL. THE DE51GN
PROFESSIONAL SHALL RETAIN ALL
COMMON LAW, STATUTORY AND OTHER
RE5ERVED RIGHTS, INCUJDING THE
COPYRIGHT THERETO. THIS DRAWING 15
THE PROPERTY Or
YATE5-CHREITZBERG-HUGHE5 ARCHITECTS
AND 15 NOT TO BE REPRODUCED OR
COPIED IN WHOLE OR PART. IT 15 NOT TO
BE USED ON ANY OTHER PROJECT AND 15
TO BE RETURNED ON REOUE5T.
® COPYRIGHT YCH ARCHITECT5 2008
DETENTPOND.dwg
Date 02-04-08
Revisions
New sheet 4-14-08
Storm Drainage
Area Map
CIVIL SITE
. C-3
of 3 Total 3
Comm. No. 27058.00

DAM AND EMBANKMENT CONSTRUCTION
1.) GENERAL - THE POND AND DAM AREA SHALL BE CLEARED, GRUBBED AND STRIPPED OF ALL VEGETATIVE MATERIAL AND TOPSOIL PRIOR TO DAM CONSTRUCTION.
THE DISPOSAL OF TREES, STUMPS, CONSTRUCTION DEBRIS, VEGETATIVE MATERIAL, ETC. SHALL NOT BE PERMITTED IN THE DAM OR POOL AREA, WHEN
BLASTING IS USED TO REMOVE ROCK FROM THE POOL AREA, THE BLASTED AREA SHALL BE OVER -EXCAVATED TO A DEPTH OF AT LEAST TWO FEET (21 BELOW
FINISHED GRADE AND BROUGHT BACK TO FINISHED GRADE WITH CLEAN RELATIVELY IMPERVIOUS SOIL MATERIAL COMPACTED IN PLACE.
2.) EARTH FILL DAMS
A) THE CONSTRUCTION OF THE DAM SHALL FOLLOW THE STANDARDS OF THE NCDENR DAM SAFETY. ITEMS LISTED BELOW ARE MINIMUM, BUT WILL BE VOID IF
NCDENR REQUIREMENTS ARE MORE STRINGENT REQUIREMENTS.
B) SOIL MATERIALS USED FOR EARTH FILL WHICH ARE HIGHLY PERMEABLE OR WHICH EXHIBIT SIGNIFICANT SHRINKAGE SWELL OR DISPERSION SHALL NOT BE USED
IN THE EMBANKMENT.
C) A CUTOFF TRENCH (CORE TRENCH) SHALL BE PROVIDED WITH A MINIMUM WIDTH OF FIVE FEET (6). THE CENTERLINE OF THE CUTOFF TRENCH SHALL BE
LOCATED DOWNSTREAM OF THE INSIDE TOP OF SLOPE OF THE DAM. THE CUTOFF TRENCH SHALL BE CAREFULLY BACK -FILLED WITH HIGHLY IMPERMEABLE
MATERIAL AND COMPACTED AT LEAST NINETY-EIGHT PERCENT (98%) OF STANDARD PROCTOR DENSITY.
D) THE MINIMUM TOP WIDTH OF THE DAM SHALL BE TEN FEET (1(Y) AND SLOPES SHALL NOT BE STEEPER THAN 3:1 (THREE HORIZONTAL TO ONE VERTICAL ON THE
DAM OR UPSTREAM SIDE OF THE EMBANKMENT WITH 2:1 SLOPE ON THE DOWNSTREAM SLOPE OF THE DAM. THE SLOPES AROUND THE POND WILL BE 3:1 FOR
EASE OF MAINTENANCE AND ACCESS OF THE POND.
E) ALL DISTURBED GROUND AREAS AND EMBANKMENTS SURROUNDING THE POND SHALL BE MECHANICALLY STABILIZED OR HAVE PERMANENT SEEDING SCHEDULE.
3.) LANDSCAPING AREAS AROUND THE POND
A) THE LANDSCAPING WILL BE INSTALLED AND MAINTAINED PER THE REQUIREMENTS OF THE CURRENTS STORMWATER BMP MANUAL PER NCDENR WATER QUALITY
SECTION.
B) THE SOIL IN THE LITTERAL SHELF WILL HAVE AMENDMENTS PER NCDENR REQUIREMENTS PER CHAPTER 6 OF JULY 2007 OR CURRENT MANUAL FOR GOOD
CONDITIONS TO MAINTAIN THE AQUATIC PLANTING REQUIRED FOR THE WATER QUALITY FEATURE.
OPERATION AND MAINTENANCE
(MAINTENANCE OF THE POND WILL FOLLOW THE NCDENR STANDARD MAINTENANCE REQUIREMENTS AND MAINTENANCE WILL BE DONE AS PART OF THE NEW
STANDARDS SET UP BY THE STORMWATER BMP MANUAL AND CERTIFICATION FOR MAINTENANCE BY THE STATE OF NC
INSPECTION EVERY MONTH OR AFTER A 112" RAINFALL EVENT:
1. REMOVE DERIS FROM THE OUTLET STRUCTURE.
2. CHECK AND CLEAR THE ORIFICES OF ANY OBSTRUCTIONS.
3. CHECK THE POND SIDE SLOPES; REMOVE TRASH, REPAIR ERODED AREA BEFORE THE NEXT RAINFALL EVENT.
INSPECTION EVERY 3 MONTHS TO INCLUDE THE FOLLOWING:
1. INSPECT THE COLLECTION SYSTEM (I.E. CATCH BASINS, PIPING, GRASSED SWALES) FOR PROPER FUNCTIONING. CLEAR ACCUMULATED TRASH FROM BASIN
GRATES AND BASIN BOTTOMS, AND CHECK PIPING FOR OBSTRUCTIONS.
2. CHECK POND INLET PIPES FOR UNDERCUTTING, REPLACE RIPRAP, AND REPAIR BROKEN PIPES.
3. RESEED GRASS SWALES TWICE A YEAR AS NECESSARY. REPAIR ERODED AREAS IMMEDIATELY.
4. CHECK THE SLOPE ON THE DOWN STREAM SIDE OF THE DAM AND THE AREA BELOW THE EMERGENCY SPILLWAY FOR ERODED AREAS. REPAIR ANY AREAS
WHERE EROSION MAY OCCUR IMMEDIATELY.
INSPECTION EVERY 6 MONTHS TO 114CLUDE THE FOLLOWING:
1. REMOVE ACCUMULATED SEDIMENT FROM THE BOTTOM OF THE OUTLET STRUCTURE.
2. CHECK POND DEPTH AT VARIOUS POINTS IN THE POND, IF DEPTH IS REDUCED TO 75% OF ORIGINAL PERMANENT SEDIMENT STORAGE DESIGN DEPTH, SEDIMENT
WILL BE REMOVED TO AT LEAST ORIGINAL DESIGN DEPTH.
3. OWNER IS RESPONSIBLE FOR MAINTENANCE AND CLEAN OUT OF THE FOREBAY AREA AS NECESSARY FOR ROUTINE SEDIMENT REMOVAL AND TRASH.
4. OPERATE SLUICE GATE DRAIN VALVE FROM FULLY OPEN TO FULLY CLOSED POSITION TO MAKE SURE THE VALVE IS WORKING PROPERLY.
MAINTENANCE AS REQUIRED:
1. MOW THE SIDE SLOPES ACCORDING TO THE SEASON. MAXIMUM GRASS HEIGHT WILL BE 6".
2. WETLAND PLANTS AS SHOWN AND OTHER INDIGENOUS WETLAND PLANTS ARE ENCOURAGED ALONG THE POND PERIMETER. HOWEVER THEY MUST BE REMOVED
OR TRIMMED IF THEY COVER THE ENTIRE SURFACE OF THE POND. CATTAILS ARE NOT ALLOWABLE WETLAND PLANTS. IF THEY BECOME PART OF THE POND,
REMOVE THEM IMMEDIATELY.
3. THE ORIFICE IS DESIGNED TO DRAW DOWN THE POND IN A 2 TO 5 DAY TIME PERIOD. IF THE DRAWDOWN IS NOT ACCOMPLISHED IN THAT TIME, THE SYSTEM MAY
BE CLOGGED. THE SOURCE OF THE CLOGGING MUST BE FOUND AM ELIMINATED.
4. ALL COMPONENTS OF THE DETENTION POND SYSTEM MUST BE KEPT IN GOOD WORKING ORDER.
20: 1 SLOPE MIN.
(AS SHOWN ON PLAN)
"b� /
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eAS
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FENCE AROUND
PPERIMETEROF I �% - ��+C • ti
\ POND, TYP.
_zzz Z � _ -= 11Y EMERGiENC ` /a
, �� �� Apwk
�� �` SPILLWAY
/f�
// 109,35' OF 3$' RCP AT 0.54°l6
" t 4 li 1I1 4'X4' OUTLET�TRUCTURE
® I I i I f RIM = 647-:il5. 627.12
I `�� INV OLIT-s�8
A RIP -RAP AT OUTLET f �� �\ 620.12
18'LX70.5'W X 12" THK
\ CLASS B STONE
5' OF 12" PVC BOTTOM
DRAIN TO OUTLET STRUCTURE
Q \ n . 1� 1 ' �`, INV = 620.0 2a-SLOPE BELOW ` •� \ _\i�a \
.
1:�
62012 THE PERM. WATER.-
r LEVEL, TVP.
620 _ _ _IIE \\
621
FES FOR POND r I` I I \�\ \
INV OUT=6042 © �' I I ` FOREBAY BAFFLE\\\\\
619.5 �I y 4 ~ ` SEE DETAIL BELOW
-WtT POND AREA
PERMANENT POND ELEVATION= 6b�©
j I 1 f j i r 625.67
t ,ca�-; FOREBAY
AREA RIP -RAP AT OUTLET \�� \x•'\l
I \\�
- - •� � ` 1 `,� lti� , 4` : ' 4 1$'LX110.5'WX12-THK
CLASS BSTONE - \\,�1 1
Jill -_ PERMANENT
POND LEVEL625.69
3:1 SLOPE,
10:1 4`TTORAL TYP
I I LANNID PIx4NTING - �'_�' L+ SHELF FOR
E LAN�hrDETAIL- ` - _ f WATER QUALWX
� -�16CES6fAS1�FQR MAINTENi4NCE �
6' CHAINLINK FENCE WITH 17 PAIR
OF ACCESS GATE FOR POND
�.
r � i
- 3 - r
6
� r
WET POND GRADING PLAN
on •$ 1
629.0
629.60 (acre.)
TOP OF DAM = efte
828.49
100 YR WATER LEVEL = A
3:1 SLOPE
20' EUFRGENCY
SPILLWAY " 628.25 628.12 (own.)
-_
82 A.
t0 YR WATER LEVEL = $
- - --
3:1 SLOPE
10 YR WATER LEVEL = E'r�.
I YR WATER LEVEL 949:r.�
TOP OF 627.12
�
925'
NORMAL POOL LEVEL
RISER = 6�6�
626
- - - �.. - - =$2b54 _ - _ - -
SLOPE VARIES
625 RIP RAP
- SEE PLAN
BAFFLE
10:1 SLOPE
2:1 SLOPE SEE DETAIL BELOW 2:1 SLOPE
10' LITTORIAL
SHELF AT 10:1
FOREBAY BOTTOM = 620.0 WET POND BOTTOM = 620.0
AROUND PERIMETER
OF POND
ALUM. BAR GRATING I XI/9"
BEARING BARS. FASTEN WITH J-CLIPS
ATTACHED TO A 1 1/4"XI 114"x1 19"
GALVANIZED ANGLE FRAME. MORTOR
FRAME TO TOP OF OUTLET STRUCTURE,
822ggW449g2' SQUARE ACCESS HATCH AND LOCK
100 YR WATER LEVEL = 9f8� A
50 YR WATER LEVEL =BdlB*49
TOP OF 627.12
RISER - 8ff.M-.
626P,7-.86 A
10 YR WATER LEVEL =
66 26.61 ©
12" DIAMETER
ORIFICE
©
I YR WATER LEVEL =
E EV �r
10A SLOPE
LITTERAL. SHELF
625.67
©
NORMAL POOL LEVEL = 8P536-
.-.-----.-.-.-.623.a--
COMPACTED SOIL
98% STANDARD PROCTOR
2:1 SLOPE - 11=
12" MIN. THK. OF
BELOW WATER -
111� 11 I 1 I! r
#5 WASHED STONE
1
W/SCREEN OVER
I I -
BOTTOM DRAIN
- 1
I 11
WET POND BOTTOM = 620.0
12' PVC BOTTOM DRAIN
w I
TYPICAL POND SECTION
NTS
3:1 SLOPE
(INSIDE DIMENSION)
CAST RISER BOX
FC
629.60 (AVE.)
C
- COMPACTED SOIL
98% STANDARD PROCTOR
12" SLUICE GATE VALVE
WITH LIFTING ROD ATTACHED
PER MANUFACTURERS REQUIREMENTS
INV- 620.0
_I 1 _ NOWSRINKGROUT
FIldl 1 I- IN BASE OF
PRE -CAST UNIT
CONCRETE BASE - B'X8'
12' THK. W 10110 6X6 VW*A
UNDISTURBED SOIL
SECTION A -A
NTS
97'-36"RCP AT0.5%
32'
NOTE: CONTRACTOR SHALL SUBMIT SHOP DRAWINGS TO
ENGINEER FOR REVIEW AND APPROVAL PRIOR TO
FABRICATION OF OUTLET STRUCTURE
IT SLUICE GV
WITH LIFT ROD
FOR BOTTOM
DRAIN
SLOPE VARIES - SEE PLAN
(MIN. 2:1)
12" THK ANTI -SEEP
COLLARS - 12" MIN.
AROUND PIPE - SEE
DETAIL ON THIS PAGE
INV= 619.52
RIP -RAP AT OUTLET
18'LX10.5'WX 12" THK
CLASS B STONE
ALUM BAR GRATE
WITH 2' SQUARE ACCESS
HATCH AND LOCK
CENTERED ON TOP
bu
0
z
ua
4' X 4' PRECAST
RISER UNIT TOP OF GRATE
5' INSIDE ELEV= 8m"�. b-
627.12
TOP OF RISER
NTS
627.12
TOP OF RISER = 6991.75-
A
NORMAL POOL LEVEL = 625.60"
WETLAND PLANT LEGEND
75 PLANTS BLUE FLAG IRIS ( Iris Vi gbk8) 1 gel. pot FULL TO PARTIAL SUN
75 PLANTS PICKEREL WEED ( PbWede is cot 1 gal. pot FULL TO PARTIAL SUN
72 PLANTS DUCKWEED (L&"na minor)
24" THK BEYOND PIPE, TYP.
1 gaL pot FULL TO PARTIAL SUN
DIA. PIPE
�>
z
z=
ANTI -SEEP COLLAR DETAIL
NTS
629.0
TOP OF DAM --4244-
NOTE: THIS AREA IS PART
OF THE ACCESS DRIVE TO
MAINTENANCE ACCESS
AROUND THE POND
628.40
100 YR WATER LEVEL = M.N A
50 YR WATER LEVEL = 690.40�
62828
627_88
10 YR WATER LEVEL = &H.86-
626.61
12" DIAMETER ORIFICE I YR WATER LEVEL = B28 bBrA 5' MIN.
OPENING FOR 1 YR
STORM RELEASE 625.67
- - - - _ . - . - NORMAL POOL LEVEL = 6i2530 -
TOP OF BAFFLE = 626. ±6±
625.50
LINE FACE OF DAM CLASS I RIP RAP
W/ 12" MIN, #57 BAFFLE
WASHED STONE
FILTER FABRIC
UNDER DAM
MIRAFI 500 OR
APPROVED EQUAL
oho a
FOREBAY BOTTOM = 620.0� WET POND BOTTOM = 620.0
T
12" PVC BOTTOM DRAIN KEY DAM INTO
EXTENDING TO TOP OF DAM EXISTING GRADE = ---. y' I
AND 36" RCP BEYOND IN REAR
OF RISER BOX FOR RELEASE
OF FLOW SECTION B-e
BOTTOM OF RISER =620.00
FRONT ELEVATION OF RISER
NTS
NOTE: ALTERNATE THE PLANTS IN
THREES AS SHOWN
10 typ
+ +
i�
a
TYP" WETLAND PLANTING
CL
NTS
i
a
Ik
r
1T
TTOM WIDTH
628.81 A
3:1 SLOPE
3.1 SLOPE GRASS LINING ON THE
628.58 628.122 627.67A © DAM AND SPILLV44AY
NORTH AMERICAN GREEN LINER
S150 ON THE BOTTOM AND 1.25 '
UP ON THE SIDES
EMERGENCY SPILLWAY DETAIL
FORBAY BAFFLE DETAIL
NTS
NTS
625.67
I�Ff1R1YAo1 i?fYfi I L'VFI a �'r..��"
ELEVATION
Architecture
Interior Design
Land Planning
Project Management
SEAL
22937
�'fNGINE��.'v'1:
IN.,S �4► nEa�
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26 -N
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CM. N0. r�*t
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Progress Dates
04-09-OS
OWNERSHIP OF INSTRUMENT5 OF SERVICE
ALL REPORT5. 5PECIFICATION5. PLANS.
COMPUTER FILE5, FIELD DATA, NOTES AND
OTHER DOCUMENTS AND I N5TRLJMENTS OF
SERVICE SHALL REMAI N THE PROPERTY OF
THE DESIGN PROFESSIONAL. THE DESIGN
PROFE5510NAL SHALL RETAIN ALL
COMMON LAW, STATUTORY AND OTHER
RESERVED RIGHTS, INCLUDING THE
COPYRIGHT THERETO. TH15 DRAWING 15
THE PROPERTY OF
YATE5-CHREIT7I3t'.RG-HUGHE5 ARCHITECTS
AND 15 NOT TO BE REPRODUCED OR
COPIED IN WHOLE OR PART. IT 15 NOT TO
BE USED ON ANY OTHER PROJECT AND I5
TO M RF-TURNED ON R>EQUE5T.
0 COPYRIGHT YCH ARCHITECTS 2008
As -built DETENTPOND.dwg
Date 02-04E-08
Revisi©na
ANew sheet 4-14-08
®NCDENR COMMENTS 5-14-08
AAS-BUILT CONDITIONS 6.30-09
DETENTION/WATER
QUALITY BMP
CIVIL SITE
AMW
Of 6 Total 00
Comm. No. 27058.00

Ill! 6:-
/ f / / / // /f ' _ t 1 , 1 �11� Jill�
Grady L Sutton
sp/A91
�-�-\ PERMANENT POND LEVEk - 625.67�� \ 361�50
/ 1
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MH
630
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\ \ r 1 [I I 7 I // J [ [I I [ i , 1 \ y \ \ CLEARING LIMITS, TYP. I
_,� �? � \ ♦ � �\ 1 � / I 14 l - 1 � I 1 11 FLAGPOLE \1 � �` - - _ _ t i tij
I
©634!02 1 .��35 �34. [ 1 4� 633.98 635 r
/ ti
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\ ♦ �' N=499306,51 I / /
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_ .. 5t131 / / 4 AL Voli 635
-:' MADIM AND DRANAGE NOTES \ r [ [7I 1
- 1 / 6 M 1 \ a34 07 c, 634.
Y :I 1. REFER TO THE SITE PLAN FOR RELATED NOTES FOR DIMENSIONING AND LOCATION -SEE \ / / I MH 11 ®-
;µ4_y G-4. 1 / f I 1 839-174 8351T
2. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES. \ i / I I I ---a?
WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, PERMISSION MUST BE OBTAINED - - f
_ - FROM THE AFFECTED OWNERS. \ \ / I O 24 \ \ I I I\
~; 3. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.5X SLOPE ONE THE CURB
WITHIN PRIVATE & PUBLIC STREETS. \ \ / [ 1 • I 1 /F 35
4. ALL CONTOURS AND SPOT ELEVATIONS REFLECT FINISHED GRADES.
/ I 1 634 634 BC % \ \ b �� I 500
5. ALL ELEVATIONS ARE IN REFERENCE TO THE BENCHMARK, CONTRACTOR SHALL VERIFY THEE \ / ' 1 N t; 6,36.-25
BENCHMARK PRIOR TO GROUND BREAKING. COORDINATE THE SETUP WITH THE SURVEYOR OF \ \ 490321.15
RECORD FOR THE BOUNDARY - LAWRENCE ASSOCIATE, PA OF MONROE. NC. \ / 633 / ® \ \ / Vt1520902.25Lu
6. THE CONTRACTOR SHALL IMMEDIATELY REPORT TO OWNER ANY DISCREPANCIES FOUND \2 Ln
BETWEEN ACTUAL FIELD CONDITIONS AND CONSTRUCTION DOCUMENTS AND SHALL WAIT FOR /
INSTRUCTION PRIOR TO PROCEEDING. \ , / I I Z I / / / 634. HP cr CP \ �' 4.35 HP
Lp CB \ \ 11 o I
p S _ / 1
7. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES IN THE FIELD PRIOR TO 9 \ \ \� Z
BEGINNING CONSTRUCTION. \ 6
8. CONTRACTOR SHALL BLEND NEW EARTHWORK SMOOTHLY TO TRANSITION BACK TO EXISTI G 1 1 \
4
GRADE_6a?� / � Ird' � HF \ 636b4$"M \ CB
9. ALL FILL SHALL BE PLACED PER THE GEOTECH SOIL REPORT AND COORDINATED WITH THE \ 9
GEOTECHNICAN FROM IN THE FIELD PER SPEcinCAITONS. ✓ \ I I / / - - I✓ \ \ ( 1 1 \ \\ J
10. LIMITS OF CLEARING SHOWN ON GRADING PLAN ARE BASED UPON THE APPROXIMATE CUT j J / tB JCE 632 _ _ ©6,34.15
AND FILL SLOPE LIMITS, OR OTHER GRADING REQUIREMENTS. I 0 / I 21 I LI 22 LINE 23 CO
11, THE PROPOSED CONTOURS AND SPOT ELEVATIONS SHOWN WITHIN ROADWAYS, PARKING LOT,
AND SIDEWALK AREAS REFLECT FINISHED ELEVATIONS INCLUDING PAVEMENT SURFACE. \ \ 632
REFER TO PAVEMENT CROSS SECTION DATA TO ESTABLISH CORRECT SUBBASE OR
AGGREGATE BASE COURSE ELEVATIONS TO BE COMPLETED UNDER THIS CONTRACT - SEE 633
SHEET C-3. Keun Young Lee I I \
12. CONTRACTOR SHALL ENSURE POSITIVE DRAINAGE SUCH THAT RUNOFF WILL DRAIN BY 9191027 I [ [ 634 CLEARING LIMITS, TYP.
GRAVITY FLOW ACROSS NEW PAVEMENT AREAS TO NEW OR EXISTING DRAINAGE INLETS, OR TAX pIN 00l3 0842/-1 I \ 6�?
SHEET OVERLAND_ 11 5 63�
13, ROOF DRAIN PIPING SHALL BE PVC. PIPE SHALL HAVE A 1X SLOPE MINIMUM AND A Z I \ - Y - / \ \ \ \ \ `' Lacy 46761278Ah 1
MINIMUM 2' COVER UNLESS OTHERWISE INDICATED ON PLAN. REFER TO PLUMBING PLANS
FOR ROOF DRAIN LOCATIONS. 1 I , / f \ \ \ \ \ 1 J AX PIN 07-02,
a M
14. REFER TO EROSION CONTROL PLAN, C-10, FOR CONSTRUCTION SEQUENCE REQUIREMENTS.
15_ ALL ETC., THAT ARE NOT OTHERWISE LANDSCAPED PERED OR DISTURBED AREAS BEYOND THE M ITS OF PAVING. SIDEWALKS. BUILDINGS,
E LANDSCAPING PLAN, SHALL BE / I 1 \ 636
STABILIZED WITH A NEW LAWN SEEDED IN ACCORDANCE WITH THE SEEDING SPECIFICATION, / r I A -
SHEET C-11. CONTRACTOR SHALL MAINTAIN SEEDED AREAS UNTIL A HEALTHY STAND OF
GRASS 15 ESTABLI5MED.
AS -BUILT STORM SYSTEM © /
Line No.
Line ID
Line Size
(in)
(In)
Line
Length
(ft)
Line
Slope
M
tntet
Ti me
(min)
apepe
I Inlet
fin/hr)
Drainage
Area
(Ac)
Runoff
C;ae#f
110
Hoar
Irate
(cfs)
Capacity
FLAl
Ict)
Velocity
Ave
(fps)
Invert
Down
(f#
Ifwert
Lip
(h)
Gm Rim
E1evi]p
(ft)
Gmd R#m
13evDn
(ft)
1
FES Ito NH 2
36
1GEL95
CL54
5
CL013
DO3
CLOD
CLC10
48.66
48SS
7.73
GASS
GM79
623.00
GM69
2
WIH 2 t€1 CB 3
36
U994
440
5
OL013
7,77 1
OL40
0.90
27.91
14L22
5.39
620.79
625.67
I GM69
63L19
3
C83toCB4
30
36.73
-0113
5
0.013
7.77
031
OL90
25S5
01.00
5.27
625`55
625.54
GM19
631.69
4
C8 4 to CB 5
30
79.91
CL 74
5
Q013
7.77
0.50
t185
2453
3524
5.00
625.49
626.08
fi3L68
63228
5
CBSTeDD16
30
19&73
OL47
5
i1013
7.77
1.70
OL75
2127
2814
433
62&23
627.17
632.28
63Z67
6
0,016to CB 7
24
8355
0.62
5
OL013
7.77
{L%
GIs
12.75
17.94
4,06
627.47
627.99
632 67
63127
7
CB 7 to CBS
24
n7 34
OL17
5
CL013
L77
0.59
0.90
9.81
9.37
112
6V.99
62R26
63127
637-51
8
CBStoC89
18
45M
L44
5
CLO13
L77
OLIO
0.90
5.97
12.58
3.39
628.26
6299Z
£+1 1
632.62
9
CB9toCB 10
18
92.07
(L74
5
OL013
7.77
a17
DL90
&44
102
3. B
629LI2
62981
M62
63L1S
10
CB 10 to CB 11
15
35.82
a53
S
0.011.3
7.77
a 74
03S
431
4.7D
352
63CLW
63119
63415
GU99
11
CB 5 to CB 12
12
67A3
3.93
5
CL013
7.77
CL26
CL90
182
7.06
3.11
62FL23
628.88
02.28
633.78
12
1111to WM 13
36
82.19
CL46
5
CL013
CLOD
QOD
G:OD
25.90
4535
167
620.79
62117
GM69
63202
13
TdIH 13 to LIH 13A
36
I%S7
0.54
5
CLO13
aOD
CLOD
CL00
21193
49.23
4,02
62L17
627-23
632.02
63+LS7
14
WTI 13 A to M1HI 14
36
233.17
CL49
5
661.3
7.77
CL25
0.90
2828
46.43
S.47
62Z23
623.36
63457
633.59
15
LIH 14 to YI 15
36
8039
CL36
S
CLO13
7.77
CL]8
a65
27A4
3991
5.10
62146
623.75
633.59
633.15
16
YI is to W!i 16
30
67.11
OL30
5
OLM3
a00
CLOD
CLOD
2715
2239
5.53
623.77 1
62197
633,15
633.97
17
W 1s to YI 17
30
57.44
a80
5
OL013
7 77
CL19
TILES
22.07
36.69
455
6Z420
6241.90
6U97
633.54
18
M 17to1 118
30
8095
CL49
5
CLCI13
0.00
CLOD
CL00
2L71
29.47
443
62179
Gn18
631S4
634LO2
19
WIH18t+oY119
30
6851
OL41
5
6.013
7.77
1 CL26
a66
1652
26-20
137
625:26
0S.54
63'L02
632.99
20
Y119to LIH 20
30
6ZS4
CL37
5
OL013
7.77
a13
0.9D
I5.67
24.81
122
525.63
625.86
632.99
63186
21
lY4H20toCH21
30
17&49
0.58
5
OL013
7,77
OL90
OL90
1559
31.0
A.01
625.86
GM97
633.86
63LO2
22
CB 21to CB 22
24
146L43
0.55
5
CL013
7.77
CL64
C190
10.48
16.82
4.56
627.24
62SLO5
63102
63L65
23
CB22toCB23
18
IM04
(1S2
5
CLO13
7.77
CL50
CL90
498
7.57
Z92
&MO9
62887
63L65
63Z.04
24
CB 23 to IN 24
12
17179
L31
5
CLCI13
7.77
CL25
CL90
L75
4,07
-104
62897
63L24
63LO4
63473
25
CB22toDI25
12
177.61
L49
5
CL1113
7.77
CL27
CLSS
178
4,34
3.0E
62818
GM92
631.65
63&07
26
11 to DI 26
18
11&41
L91
5
0.013
7.77
a49
CLS5
I=46
14 50
A -90
625.3S
627.55
6X02
63400
27
DI 26 to DI 27
12
14L99
L415
5
CLO13
7.77
1153
(La6
150
4.29
5:66
627.90
629.96
634,013
633.98
28
11116 to DI 28
18
12I:L62
L48
5
CLO13
7.77
a48
CL85
&72
12.79
&62
GX90
626.69
E'i33.97
633.80
29
DI28to O 29
15
1IR69
L51
5
11M3
7.77
a2S
Q85
3,33
TM
S-OB
62&98
621174
fi3180
63399
30
DI 29 to DI 30
12
S.72
110
5
a013
7.w
a34
1185
2.25
278
194
629.25
629.59
63199
633.99
\\0.
i con
found
/ f
TAX PIN 071-021-015G / �- Tax \ \ \\ \ C
634 i 837.5 G
_ \ J J I I
633
-632
-631
630
Architecture
Engineering
Land Planning
Project Management
I
1
I
6 1
�9 I
501 \I
628.73 �
N=490763,1
E=1521677.1
1\
josephj. Donofrio1 / 67 G -' % 50
\ /883/542
TAX PIN 07 021-015F 63
\ \ GuyD. Ptir, pe\ // // -4907 6.9
GRAPHIC SC LE .31°4r141 I \ ' / E=1�, 693.
A \ TAX PIN 07-021-0/5
40 0 20 44 8D 12Dnow
� IN FEE!')
- SEAL t-
22937
RG-HU6yf�r
W M CEW. On -i
31° F
7- y
11*4 t
Progress Dates
04-09-08
Z
OWNER5HIP OF IN5TRUMENT5 OF SERVICE
ALL REPORTS, 5PECIMCATION5, PLANS.
COMPUTER III FIELD DATA, NOTE5 AND
OTHER DOCUMENT5 AND IN5TKUMENT5 OF
SERVICE SHALL REMAIN THE PROPERTY OF
THE DESIGN PROFESSIONAL. THE DE5IGN
PROFE551ONAL SHALL RETAIN ALL
COMMON LAW, STATUTORY AND OTHER
RESERVED RIGHTS, INCLUDING THE
COPYRIGHT THERETO. TH15 DRAWING 15
THE PROPERTY OF
YATE5-CHREITZSERG-HUGHE5 ARCHITECTS
AND 15 NOT TO 13E REPRODUCED OR
COPIED IN WHOLE OR PART. IT 15 NOT TO
BE USED ON ANY OTHER'. PROJECT AND 15
TO BE RETURNED ON REQUEST.
0 COrrRIGHT YCH ARCHITECT5 2008
as -built GRADINGSTORM.d
Date 02-04-08
Revisions
QNew sheet 4-14-08
A NCDENR COMMENTS FOR POND
5-14-08
® AS -BUILT OF STORM SYSTEM
6-30-09
GRADING/STORM
CI IL SITE
C -
Of 5 Total 00
Comm. No. 27058.00
1 inch = 40 ft

OARING LIMITS, TYPI 2 _ - •
go
so X
� 65
10
f► -
IF IF
10
00,40110LL•�'I I / I
/ ,
O
i • / l 1 / .a IM r 61
cyc
A as
63Z AM
BP
i
r
.s
.
- -. - _ _ `• \ 1 • I � { f /' spa. 5 I 1
_ -__ \ 1 1► � f 1 f
650
633.11 RI
E 15 ,
628. \
-
' �; ,/ , 1 GMI)ING AND DRAINAGE NOTES ,,
6 KW RIA
1. REFER TO THE SITE PLAN FOR RELATED NOTES FOR DIMENSIONING AND LOCATION --SEE , , / / I I ♦
2. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES.
s = WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, PERMISSION MUST BE OBTAINED 1 -
- FROM THE AFFECTED OWNERS. e" p 24
3. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.5% SLOPE Ot� THE CURB /
- ' WITHIN PRIVATE & PUBLIC STREETS.
4. ALL CONTOURS AND SPOT ELEVATIONS REFLECT FINISHED GRADES. r /
5. ALL ELEVATIONS ARE IN REFERENCE TO THE BENCHMARK. CONTRACTOR SHALL VERIFY THE \ ■ / f N
BENCHMARK PRIOR TO GROUND BREAKING. COORDINATE THE SETUP WITH THE SURVEYOR OF \ •
: = - RECORD FOR THE BOUNDARY - LAWRENCE ASSOCIATE, PA OF MONROE, NC. \
6. THE CONTRACTOR SHALL IMMEDIATELY REPORT TO OWNER ANY DISCREPANCIES FOUND \ [
. BETWEEN ACTUAL FIELD CONDITIONS AND CONSTRUCTION DOCUMENTS AND SHALL WAIT FOR i \ /
INSTRUCTION PRIOR TO PROCEEDING. C
+.
7. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES IN THE FIELD PRIOR TO '
BEGINNING CONSTRUCTION. \ ' f
S. CONTRACTOR SHALL BLEND NEW EARTHWORK SMOOTHLY TO TRANSITION BACK TO EXISTING r I
GRADE.
9. ALL FILL SHALL BE PLACED PER THE GEOTECH SOIL REPORT AND COORDINATED WITH THE ✓ -- ; g j
GEOTECHNICAN FROM IN THE FIELD PER SPECIFICAITONS.
10. LIMITS OF CLEARING SHOWN ON GRADING PLAN ARE BASED UPON THE APPROXIMATE CUT / I
AND FILL SLOPE LIMITS, OR OTHER GRADING REQUIREMENTS. 1
�a 208C
11. THE PROPOSED CONTOURS AND SPOT ELEVATIONS MOWN WITHIN ROADWAYS, PARKING LOT, 1
AND SIDEWALK AREAS REFLECT FINISHED ELEVATIONS INCLUDING PAVEMENT SURFACE. r I
REFER TO PAVEMENT CROSS SECTION DATA TO ESTABLISH CORRECT SUBBASE OR
AGGREGATE BASE COURSE ELEVATIONS TO BE COMPLETED UNDER THIS CONTRACT - SEE `
SHEET C-3. Keun Young Lee i
12. CONTRACTOR SHALL ENSURE POSITIVE DRAINAGE SUCH THAT RUNOFF WILL DRAIN BY 919Iii27
GRAVITY FLOW ACROSS NEW PAVEMENT AREAS TO NEW OR EXISTING DRAINAGE INLETS, OR T,4X p11V 0-021-OaB �+
SHEET OVERLAND_ 1
13. ROOF DRAIN PIPING SHALL BE PVC. PIPE SHALL HAVE A IX SLOPE MINIMUM AND A
MINIMUM 2' COVER UNLESS OTHERWISE INDICATED ON PLAN. REFER TO PLUMBING PLANS
FOR ROOF DRAIN LOCATIONS. ♦ 1
14. REFER TO EROSION CONTROL PLAN, C-10, FOR CONSTRUCTION SEQUENCE REQUIREMENTS-
15. ALL GRADED OR DISTURBED AREAS BEYOND THE LIMITS OF PAVING, SIDEWALKS, BUILDINGS,
ETC., THAT ARE NOT OTHERWISE LANDSCAPED PER THE LANDSCAPING PLAN, SHALL BE j
STABILIZED WITH A NEW LAWN SEEDED IN ACCORDANCE WITH THE SEEDING SPECIFICATION,
SHEET C-11. CONTRACTOR SHALL MAINTAIN SEEDED AREAS UNTIL A HEALTHY STAND OF
GRASS IS ESTABLISHED.
Line No.
Line ID
Line Size
(in)
Line
Length
(ft)
Line
Slope
%)
Inlet
Time
(min)
n-value
piPe
Ilnlet
(�n / hr }
Drainage
Area
(Ac)
Runoff
Coeff
(C)
Flow
Rate
cfs
Capacity
Full
(ds)
Velocity
Ave
(fps)
Invert
Down
(ft)
Invert
Up
(ft)
Grnd Rim
Elev Dn
(ft)
Grnd Rim
Elev Up
(ft)
1
FES 1 to MH 2
36
170.00
0.50
5
0.013
0.00
0.00
0.00
48.73
1 47.16
7.77
620.00
620.85
1 62-3.00
630.30
2
MH 2 to CB 3
36
104.00
450
5
0.013
7.77
0.40
0.90
27.92
141.48
5.39
620.85
625.53
630.30
631.20
3
CB 3 to CO 4
30
37.00
0.51
5
0.013
7.77
0.31
0.90
25.86
29.38
6.76
625.53
625.72
631.20
63175
4
CB 4 to C B 5
30
80.00
0.50
5
0.013
7.77
0.50
0.85
24.54
29.00
5.66
625.72
626.12
63L 75
632-40
5
CB 5 to DDI 6
30
199.00
0.50
5
0.013
7.77
1.70
0.75
21.28
29.07
4.46
626.12
627.12
632,40
632.50
6
DD16 to CB 7
24
84.00
0.50
5
0.013
7.77
0.56
0.85
12.75
15.99
4,06
627.52
627.94
632.50
633.00
7
CB 7 to CB 8
24
159.00
0.50
5
0.013
7.77
0.59
0.90
9.82
16.04
3.13
62794
629.74
633.00
632.50
8
CB 8 to CB 9
18
44.00
0.50
5
0.013
7.77
0.10
0.90
5.97
7.43
3.38
629.04
629.26
632.50
632.50
9
CB 9 to CB 10
18
92.00
0.50
5
0.013
7.77
0.17
0.90
5.45
7.43
3.08
629.26
629.72
632-50
634.00
10
CB 10 to CB 11
15
34.50
1.69
5
0.013
7.77
0.74
0.75
4.31
8.37
3.52
629.92
63Q50
634.00
634.00
11
Co 5 to CB 12
12
68.00
1.40
5
0.013
7.77
0.26
0.90
1.82
4.21
3.12
627.62
628.57
632.40
633.75
12
MH2 to MH 13
36
82.00
0.50
5
1 0.013
0.00
0.00
0.00
25.94
47.16
3.67
620.85
621,26
630.30
63190
13
MH 13 to MH 13 A
36
195.00
0.50
5
0.013
0.00
0.00
0.00
26.97
47.28
3.96
621.26
622.24
631.90
633.60
14
MH 13 A to MH 14
36
230.00
0.50
5
0.013
7-77
0.25
0.90
28.31
47.16
5.32
622.24
623.39
633.60
633.66
15
MH 14 to YI 15
36
82.00
0.50
5
0.013
7.77
0.18
0.65
27.48
47.16
5.11
623.39
623.80
633.66
633.00
16
YI 15 to MH 16
30
66.50
0.50
5
0.013
0.00
0.00
0.00
27-18
28.89
5.86
624.00
624.33
633.00
633.80
17
MH 16 to YI 17
30
83.00
0.51
5
0.013
7.77
0.19
0.65
22.07
29.17
4.50
624.33
624.75
633.80
633.50
i8
YI 17 to MH 18
30
80.50
0.50
5
0.013
0.00
0.00
0.00
21.72
28.91
4.42
624.75
625.15
633.00
633.80
19
MH 18 to YI 19
30
69.00
0.51
5
0.013
7.77
0.26
0.65
16.52
29.21
3,37
625.15
625.50
633.80
633.00
20
YI 19 to MH 20
30
62.00
0.50
5
0.013
7.77
0,13
0.90
15.67
29.00
3.20
625.50
625.81
1 633.00
633.85
21
MH 20 to CB 21
30
175.50
0,50
5
0.013
1 7.77
0.90
0.90
15.59
29.04
3.64
625.81
626.69
633.85
631.30
22
CB 21 to CB 22
24
146.00
0.50
5
0.013
7.77
0.64
0.90
10.48
15.99
430
627.29
628.02
631.30
631.35
23
CB 22 to CB 23
18
15L00
Q50
5
0.013
7.77
0.50
0.90
4.98
7.45
2.96
628.12
628.88
631.35
631.60
24
CB 23 to DI 24
12
173.50
L25
5
0.013
7.77
0.25
0.90
1.75
3.98
3.04
628.88
63105
631.60
634,50
25
CB 22 to DI 25
12
177,00
150
5
0.013
7.77
1 0.27
0.85
1.78
4.37
3.08
628.12
630.78 1
631.35
634.00
26
MH 18 to DI 26 1
18
114.OD
L25
5
0.013
7.77
0.49
0.85
6.46
1L 76
1 4,50
626.15
627.58
633.80
1 634.00
27
DI 26 to DI 27
12
142.00
3-40
5
0.013
7.77
0.53
0.85
150
4.22
5.62
628.08
630.07
634.00
634.00
28
MH 16 to DI 28
18
119.00
L25
5
0.013
7.77
0.48
0.85
6.72
Ll75
4.62
625.33
626.82
633.80
MOO
29
DI 28 to DI 29
15
116.50
L25
5 1
0.013
7.77
0.2-5
0.85
3,93
7.23
5.36 1
627.32
628.78
634,00
634-00
30
DI 29 to DI 30
12
55.00
1.00
5 1
0.013
7.77
0.34
1 0.85
2.25
3.56
4.53
629.03
629.58 1
634.00
634.00
1 � 1
� 1
i 1 �
634
[
I 633
��'.9 632
K 631
501 %[ 630 -•-•11leI
628.73 �����r••�r.I
N=490763.1
E=1521677.
I �
1
1 `1
[ ___ -- ---�L�
=- -~ PERMANENT POND LENEk - 625-50 s��
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r
/
r
0
634
BC
w I
\
l
�•
1
II
1
1
\
CLEARING LIMITS, TYP.
�
1 � \
R
1
33.50 C
�
o
\ / "ran 1,"
500
f-
-1520902 25 LU
1 _ 1
\ 1 n °D
i \ 1 z \ { �-
ca
"�t�f
!� \ %, ° \ , ( ,4x 78
PIN 07-02
r%
r \ / �►
'RN 0'W1-0I5G I � �'� \ \ \ ; I40
/./ 637.5 G
Architecture
Engineering
Land Planning
Project Management
t
ow 100
CA k
�i
i,
.QF�.SSIOh., f�•�
SEAL -
22937 -
S.
t�
ti Carr. MM -,
c 30 g h
�+ y
'fir cllttl��
Progress Dates
04-09-OS
O NEP5111P OF lN5TPJJMENT5 OF SERVICE
ALL REPORTS, SPECIFICATION5, PLAN5,
COMPUTER FILF5, FIELD DATA, NOTE5 AND
OTHER DOCUMENTS AND IN5TRUMENT5 OF
5ERVICE 5HALL REMAIN THE PROPERTY OF
THE DE5IGN PROFESSIONAL. THE DE51GN
PROFE5510NAL 5HALL RETAIN ALL
COMMON LAW, STATUTORY AND OTHER
RE5ERVED RIGHTS, INCLUDINGTHE
COPYRIGHT THERETO, THI5 DRAWING 15
THE PROPERTY OF
YATf5-CHREIT75ERG-HUGHE5 ARCHITECT5
AND 15 NOT TO BE REPRODUCED OR
COPIED IN WOLF OR PART. IT 15 NOT TO
DE U5ED ON ANY OTHER PROJECT AND 15
TO BE RETURNED ON REQUE5T.
Q COPYRIGHT YCH AKC HrMCT5 2005
r.r GRADINGSTORM.dwg
Date 02-04-08
Revisions
Q1 New sheet 4-14-08
© NCDENR COMMENTS FOR POND
5-14-08
GRADING/STORM
SITE
C-
Of 5 - Total 00
Olt-4I Comm. No. 27058.00 1
1 inch = 40 ft

)7
DAM AND EMBANKMENT CONSTRUCTION
1.) GENERAL - THE POND AND DAM AREA SHALL BE CLEARED, GRUBBED AND STRIPPED OF ALL VEGETATIVE MATERIAL AND TOPSOIL PRIOR TO DAM CONSTRUCTION.
THE DISPOSAL OF TREES, STUMPS, CONSTRUCTION DEBRIS, VEGETATIVE MATERIAL, ETC. SHALL NOT BE PERMITTED IN THE DAM OR POOL AREA, WHEN
BLASTING IS USED TO REMOVE ROCK FROM THE POOL AREA, THE BLASTED AREA SHALL BE OVER -EXCAVATED TO A DEPTH OF AT LEAST TWO FEET (21) BELOW
FINISHED GRADE AND BROUGHT BACK TO FINISHED GRADE WITH CLEAN RELATIVELY IMPERVIOUS SOIL MATERIAL COMPACTED IN PLACE.
2.) EARTH FILL DAMS
A) THE CONSTRUCTION OF THE DAM SHALL FOLLOW THE STANDARDS OF THE NCDENR DAM SAFETY. ITEMS LISTED BELOW ARE MINIMUM, BUT WILL BE VOID IF
NCDENR REQUIREMENTS ARE MORE STRINGENT REQUIREMENTS.
B) SOIL MATERIALS USED FOR EARTH FILL WHICH ARE HIGHLY PERMEABLE OR WHICH EXHIBIT SIGNIFICANT SHRINKAGE SWELL OR DISPERSION SHALL NOT BE USED
IN THE EMBANKMENT.
C) A CUTOFF TRENCH (CORE TRENCH) SHALL BE PROVIDED WITH A MINIMUM WIDTH OF FIVE FEET (51. THE CENTERLINE OF THE CUTOFF TRENCH SHALL BE
LOCATED DOWNSTREAM OF THE INSIDE TOP OF SLOPE OF THE DAM. THE CUTOFF TRENCH SHALL BE CAREFULLY BACK FILLED WITH HIGHLY IMPERMEABLE
MATERIAL AND COMPACTED AT LEAST NINETY-EIGHT PERCENT (98%) OF STANDARD PROCTOR DENSITY.
D) THE MINIMUM TOP WIDTH OF THE DAM SHALL BE TEN FEET (1(Y) AND SLOPES SHALL NOT BE STEEPER THAN 3:1 (THREE HORIZONTAL TO ONE VERTICAL ON THE
DAM OR UPSTREAM SIDE OF THE EMBANKMENT WITH 2:1 SLOPE ON THE DOWNSTREAM SLOPE OF THE DAM. THE SLOPES AROUND THE POND WILL BE 3:1 FOR
EASE OF MAINTENANCE AND ACCESS OF THE POND.
E) ALL DISTURBED GROUND AREAS AND EMBANKMENTS SURROUNDING THE POND SHALL BE MECHANICALLY STABILIZED OR HAVE PERMANENT SEEDING SCHEDULE.
3.) LANDSCAPING AREAS AROUND THE POND
A) THE LANDSCAPING WILL BE INSTALLED AND MAINTAINED PER THE REQUIREMENTS OF THE CURRENTS STORMWATER BMP MANUAL PER NCDENR WATER QUALITY
SECTION.
B) THE SOIL IN THE LITTERAL SHELF WILL HAVE AMENDMENTS PER NCDENR REQUIREMENTS PER CHAPTER 6 OF JULY 2007 OR CURRENT MANUAL FOR GOOD
t
CONDITIONS TO MAINTAIN THE AQUATIC PLANTING REQUIRED FOR THE WATER QUALITY FEATURE.
1
OPERATION AND MAINTENANCE
MAINTENANCE OF THE POND WILL FOLLOW THE NCDENR STANDARD MAINTENANCE REQUIREMENTS AND MAINTENANCE WILL BE DONE AS PART OF THE NEW
STANDARDS SET UP BY THE STORMWATER BMP MANUAL AND CERTIFICATION FOR MAINTENANCE BY THE STATE OF NC
INSPECTION EVERY MONTH OR AFTER A 11211 RAINFALL EVENT:
1. REMOVE DERIS FROM THE OUTLET STRUCTURE.
2. CHECK AND CLEAR THE ORIFICES OF ANY OBSTRUCTIONS.
3. CHECK THE POND SIDE SLOPES; REMOVE TRASH, REPAIR ERODED AREA BEFORE THE NEXT RAINFALL EVENT.
INSPECTION EVERY 3 MONTHS TO INCLUDE THE (FOLLOWING:
1. INSPECT THE COLLECTION SYSTEM (I.E. CATCH BASINS, PIPING, GRASSED SWALES) FOR PROPER FUNCTIONING. CLEAR ACCUMULATED TRASH FROM BASIN
GRATES AND BASIN BOTTOMS, AND CHECK PIPING FOR OBSTRUCTIONS.
2. CHECK POND INLET PIPES FOR UNDERCUTTING, REPLACE RIPRAP, AND REPAIR BROKEN PIPES.
3, RESEED GRASS SWALES TWICE A YEAR AS NECESSARY. REPAIR ERODED AREAS IMMEDIATELY,
4. CHECK THE SLOPE ON THE DOWN STREAM SIDE OF THE DAM AND THE AREA BELOW THE EMERGENCY SPILLWAY FOR ERODED AREAS. REPAIR ANY AREAS
WHERE EROSION MAY OCCUR IMMEDIATELY.
INSPECTION EVERY 6 MONTHS TO INCLUDE THE FOLLOWING:
1. REMOVE ACCUMULATED SEDIMENT FROM THE BOTTOM OF THE OUTLET STRUCTURE.
2, CHECK POND DEPTH AT VARIOUS POINTS IN THE POND. IF DEPTH IS REDUCED TO 75% OF ORIGINAL PERMANENT SEDIMENT STORAGE DESIGN DEPTH, SEDIMENT
WILL BE REMOVED TO AT LEAST ORIGINAL DESIGN DEPTH.
3. OWNER IS RESPONSIBLE FOR MAINTENANCE AND CLEAN OUT OF THE FOREBAY AREA AS NECESSARY FOR ROUTINE SEDIMENT REMOVAL AND TRASH.
4. OPERATE SLUICE GATE DRAIN VALVE FROM FULLY OPEN TO FULLY CLOSED POSITION TO MAKE SURE THE VALVE IS WORKING PROPERLY.
MAINTENANCE AS REQUIRED:
1. MOW THE SIDE SLOPES ACCORDING TO THE SEASON. MAXIMUM GRASS HEIGHT WILL BE 6".
2. WETLAND PLANTS AS SHOWN AND OTHER INDIGENOUS WETLAND PLANTS ARE ENCOURAGED ALONG THE POND PERIMETER. HOWEVER THEY MUST BE REMOVED
OR TRIMMED IF THEY COVER THE ENTIRE SURFACE OF THE POND. CATTAILS ARE NOT ALLOWABLE WETLAND PLANTS. IF THEY BECOME PART OF THE POND,
REMOVE THEM IMMEDIATELY.
3- THE ORIFICE IS DESIGNED TO DRAW DOWN THE POND IN A 2 TO 5 DAYTIME PERIOD. IF THE DRAWDOWN IS NOT ACCOMPLISHED IN THAT TIME, THE SYSTEM MAY
BE CLOGGED. THE SOURCE OF THE CLOGGING MUST BE FOUND AND ELIMINATED.
4. ALL COMPONENTS OF THE DETENTION POND SYSTEM MUST BE KEPT IN GOOD WORKING ORDER.
20: 1 SLOPE MIN.
(AS SHOWN ON PLAN)
629.0 TOP OF DAM = 829.0
- i = 100 YR WATER LEVEL - 625.74 A . 3.1 SLOPE
50 WWAtER LEVEL = 628.49 A ----� - - _
3.1 SLOPE -. _ 10 YR WATER LEVEL = 627.86 & . . ,
I YR WATER LEVEL = 626.58 TOP OF
RISER � 627.75
626 - - - - - - AN
NORMAL POOL LEVEL = 625.50 JJ - - - - -
RIP RAP- -
BAFFLE 10:1 SLOPE
SEE DETAIL BELOW
2:1 SLOPE 2:1 SLOPE
1 V LITTORIAL
SHELF AT 10•i FOREBAY BOTTOM = 620.0 WET POND BOTTOM - 620.0
AROUND PERIMETER
OF POND
TYPICAL POND SECTION
NTS
ALUM. BAR GRATING 1'X118"
BEARING BARS. FASTEN WITH J-CLIPS
ATTACHED TO A 1 114'xi 1i4"x1 114"
GALVANIZED ANGLE FRAME. MORTOR
FRAME TO TOP OF OUTLET STRUCTURE,
W 2' SQUARE ACCESS HATCH AND LOCK
100 YR WATER LEVEL = 628.74 A /
50 YR WATER LEVEL-628.49 / �♦
TOP OF
RISER = 627,75 3:1 SLOPE
10 YR WATER LEVEL = 627.36 t
©12" DIAMETER
ORIFICE
I YR WATER LEVEL = 826.58 ® ELEV- 625.5
101 SLOPE,
©LITTERAL SHELF
NORMAL POOL LEVEL = 625.50 _
625.0 -
��I
COMPACTED SOIL
93% STANDARD PROCTOR
III III
2:1 SLOPE I -I !III ll II
BELOW WATER -
�
-
.li
•
II Il. 11 II
11•:.IIGI/�ltc//-711�NC11�/ECIIC-rEE�11�
r���II
trtrf=non _
III
(INSIDE DIMENSION)
CAST RISER BOX
a
C
1AU = A7Q n
C
COMPACTED SOIL
93% STANDARD PROCTOR
12- SLUICE GATE VALVE
WITH LIFTING RODATTACHED
PER MANUFACTURERS REQUIREMENTS
_ NOWSRINK GROUT
i l -Ili- IN BASE OF
PRE -CAST UNIT
CONCRETE BASE - 8'XV
12' THK. WI 10110 6X6 VWYMI
UNDISTURBED SOIL
SECTION A -A
NTS
97' - 36" RCP AT 0.5%
SLOPE VARIES - SEE PLAN
(MIN.2:1)
INV= 619.52
20'EMERGENCY
SPILLWAY - 628.25
SLOPE VARIES
SEE PLAN
NOTE: CONTRACTOR SHALL SUBMIT SHOP DRAWINGS TO
ENGINEER FOR REVIEW AND APPROVAL PRIOR TO
FABRICATION OF OUTLET STRUCTURE
12" SLUICE GV
WITH LIFT ROD
FOR 1111�mlllllfill
12" THK. ANTI -SEEP RIP -RAP AT OUTLET
COLLARS - 17 MIN, 18'LX10,5'WX 12" THK
AROUND PIPE - SEE CLASS B STONE
DETAIL ON THIS PAGE
ALUM BAR GRATE
WITH 2' SQUARE ACCESS
HATCH AND LOCK
CENTERED ON TOP
4n
4' X 4' PRECAST
RISER UNIT TOP OF GRATE
5' INSIDE ELEV= 627.75
TOP OF RISER
NTS
TOP OF RISER = 627.75
A
NORMAL POOL LEVEL = 625650
12" DIAMETER ORIFICE
OPENING FOR 1 YR
STORM RELEASE
12" PVC BOTTOM DRAIN
EXTENDING TO TOP OF DAM
AND 36" RCP BEYOND IN REAR
OF RISER BOX FOR RELEASE
OF FLOW
BOTTOM OF RISER=620.00 1 1 ' I
FRONT ELEVATION OF RISER
NTS
WET POND GRADING PLAN
WETLAND PLANT LEGEND
75 PLANTS BLUE FLAG IRIS ( Iris VFt Was) 1 gal. pot FULL TO PARTIAL SUN
75 PLANTS PICKEREL WEED ( Pontedeft conA ts) 1 gal. Pot FULL TO PARTIAL SUN
72 PLANTS DUCKWEED (Lemns mirror)
24"THK_ BEYOND PIPE, TYP.
1 gal. pot FULL TO PARTIAL SUN
DIA. PIPE
w
OZ
2
ANTI -SEEP COLLAR DETAIL
NTS
TOP OF DAM - 629.0
NOTE: THIS AREA IS PART
OF THE ACCESS DRIVE TO
MAINTENANCE ACCESS
AROUND THE POND
100 YR WATER LEVEL = 628.74 _
50 YR WATER LEVEL = 628,49 T
10 YR WATER LEVEL = 627.86
I YR WATER LEVEL = 626.58 5 MIN.
- - - - - - _NORMAL POOL LEVEL . 625.50 A -
TOP OF BAFFLE - 625.25 +
LINE FACE OF DAM CLASS I RIP RAP
W112" MIN. 057 BAFFLE
WASHED STONE
FILTER FABRIC
UNDER DAM
MIRAFI 500 OR
APPROVED EQUAL O
� Q Q
FOREBAY BOTTOM = 620.0 WET POND BOTTOM = 620.0
KEY DAM INTO N
EXISTING GRADE
SECTION B-B
Architecture
Interior Design
Land Planning
Project Management
SEAL -
= 22937
_A_
�C
.-
t� CWT. NCI. •-�
7330
D. r• V
Progress Dates
04-09-08
®� 10
csl4&l i
NOTE: ALTERNATE THE PLANTS IN
THREES AS SHOWN
F 10' typ O
S. tm
+ +
TYP._WETLAND PLANTING 00 rT�
NTS
i
d'
O
10' BOTTOM WIDTH
•
TOP OF DAM = 629.0 T
3:1 SLOPE
3:1 SLOPE GRASS LINING ON THE
TOP OF SPILLWAY= 628.55 DAM AND SPILLWAY
NORTH AMERICAN GREEN LINER
S150 ON THE BOTTOM AND 1.25 '
UP ON THE SIDES
EMERGENCY SPILLWAY DETAIL
NTS
FORBAY BAFFLE DETAIL
NTS
WWMAt onru t PVF:t = AIA
V
�.J
ELEVATION
Approved stormwater Perr;-� r
Construction in accordance with Chase uocuments is
required by the stormwater permit Noith Caroiina
rules require tha, the stomik ater sysiem designer
Inspect during construction; certify conformit�r with the
plans and specs; and certify compliance with the
stormwater rules. (/1
15AANA/jC 2HH 1,)Q8 (�))
P No�r--ylyylt,,��, � S✓!./•1! f.GCT i�`�":.��.�!.f[�J
pY.:_ C_L NC Is,v�a,ws of W;3ter Quality
Sheet #..._ C�__.._.._._.._Revision
40
OWNER5HIP OF INSTRUMENTS OF SERVICE
ALL REPORTS, 51"ECIFICATION5, PLAN5,
COMPUTER RLE5, FIELD DATA, NOTES AND
OTHER DOCUMENTS AND INSTRUMENT5 OF
5ERACE 511ALL REMAIN THE PROPERTY OF
T11E DESIGN PROFESSIONAL. THE DESIGN
PR0FE5510NAL 5HALL RETAIN ALL
COMMON LAW, STATUTORY AND OTHER
RESERVED RIGHTS, INCLUDING THE
COPYRIGHT THERETO. TH15 DRAWING 15
THE PROPERTY OF
YATE5-CHREITZBERG-HUGHE5 ARCHTTECT5
AND 15 NOT TO BE REPRODUCED OR
COPIED IN WHOLE OK PART. IT 15 NOT TO
BE USED ON ANY OTHER PROJECT AND 15
TO BE RETURNED ON REQUEST.
0 COPYRIGHT YCH ARCHiTECT5 2006
DETENTPOND.dwg
Date 02-04-08
Revisions
d& New sheet 4-14-08
&NC➢ENR COMMENTS 5-14-08
DETENTION/WATER
QUALITY BMP
CIVIL SITE
-A
6
of b Total 00
Comm. Na. 27058.00

S,V2JP0(�'dl
ENTRANCE TO LINE UP WITH EDGE OF PROPERTY
LINE AND ENTRANCE LANE INTO BONTERRA ROAD
SEE SHEET C-3 r& C4 FOR OVERALL SITE LAYOUT. 1
I I 1 j � boo
ExisTING
AREA
Cli
IF
I IfWaWrY MAP
---- w a — — �,�, r _ / I / ! I `a' � I 11 Ij j �� 0. / not to scale
Z111 Ito u
� fj �
IXI f1NG OVERHEAD I6VYERL!! NOTE, POPLIN ROAD HAS A 60 MAI
E RIGHT.OF WAY, BUT BONTERRA VILLAGE,
EXISTING PAINTED ISLAND, WHICH IS PART OF
TURN LANE INTO BON1'ERRA VILLAGE; WILL BE THE NEW
LEFT TURN INTO SCHOOL SITE (THIS TAPERED ISLAND
i WILL BE M004FIED FOR LEFT TURN MOVEMENT)
1
I PAVEMENT WIDENS FOR I
r ANNADALE SUBD. ENTRANC
r AND WILL NOT NEED GRIND A 4' WIDE SECTION OF
RIW ADDITIONAL PAVEMENT SE TION THE EXISTING PAVEMENT TO
(PAVEMENT MARKINGS E CREATE A WEDGE TO TIE
RIOT SURVEYED IN THIS REA) EXISTING AND NEW WIDENING
L AT THE BEGINNING AND END
OF OVERLAY AREA
j SCHOOL ZONE SIGNAGE AND
I PAVEMENT MARKING PER
NCDOT - SEE C-15 FOR
DETAIL IN SINGLE LANE_
f
1
1
f
1 1/2" SURFACE COURSE
MIN., 5 9.5C
EXISTING SUB -GRADE
©GRIND A 4' WIDE SECTION OF
THE EXISTING PAVEMENT TO
CREATE A WEDGE TO TIE
EXISTING AND NEW WIDENING
AT THE BEGINNING AND END
OF THE WIDENING RESURFACE
AS SHOWN ON THE PLAN
FN
NEW PAV°EM
WIDTH VARIES (O'
to 5.2') �
FMI
FULL I
EXISTING SIGNAGE- AND
MAIL BOXES WILL NEED
TO BE RELOCATED OUT
OF THE NEW PAVEMENT
EDGE TO 3' OFF EDGE OF
PAVEMENT MINIMUM
NEW/ AREA
RE RFACE AREA FOR LEFT
TU N LANE (1 1 /2" MIN.)
:! 4' SECTION OF THE EXISTING SURFACE AREA
T BE GROUND 1 1/2" FOR TYING THE NEW
A D EXISTING PAVEMENT TOGETHER A
ISLAND STRIPING PER /
NCDOT REQUIREMEI M
SEE DETAIL ON C-15,
aFOE
FM-� p \ q0' {� _ EX�# DIVE CULVERT LLG DEDICATED 10' ADDITIONAL ROWXTENDING THE WATERMA N NVTO THE
\EXI5TTIVG 16"FORCFt1AINSUBDIVISION AND THE ENTRANCE IMPRENTS.
BSI°f7p6•Vy —� EXISTING 160FORCEMAIN / l
�. as ` ����..,
`~
END OF EK- IS�G�-� _____ • _ � �./ � �-_._ ��� � � � � ``'�-` •� .,
B' WATERMAIN Road SR /Spg �, R 1?CJ8T7NG EDGE OF PAVEIy � -- -- 11
� `` ) � > ' 1 _�_ � lA�.�� �X � F�s �`� ~ ~ ��� � a1s'I•ING EDGE OFPA"EN
EXISTING LEFT TURN)L ANE INTO BONTERRA ROAD
(THIS LANE AND TAPER W#LL REMAIN A5 i5)/A — — AR
-�jN
DUSTING 20' FORCEMAIN `'�- Fes- F4--__
EXISTING ENTRANCE WITH EXISTING RRE " ���-�
FI
CURB AND GUTTER AND HYDRANT
MEDIAN ISLANDS FOR RIGHT EXISTING S° WATERMAIN &W
TURN AND DECEL ONTO
POPLIN ROAD.
EXISTING CONDITIONS OF POPLIN ROAD
l �
f 1
1 r
I
I r.
�1
+ 1 /
f \ 1
r � I
EXISTING DRIVE CuLvERT I /
RESURFACE THE LANES AS
SHOWN IN THE TYPICAL
SECTION BELOW WITH 1 1 /2"
MIN- THICKNESS OVERLAY
_ APRON
M�0
XNNI `
i
r i
DfRECT19NAL ARROV�S �
SEE DETAILgN PAVEMfcNT
C
MAR-4 - C- 15
STOP SIGN
PER NCDOT
REQUIREMENTS
I O'X5.5' X9' La
RIP RAP
® -----
4P GROUND AREA
TO WEDGE THE NEW
AND OLD PAVMENT ,
GRAPHIC SCALE
50 100
( IN FEET }
I inch = 50 &
I I IJ
S
{PROP. STRAIGHT y !
j A(ND RIGHT OUT ( \
PROP. LEFT04JT �
PROP- ENTRANCE
j DRIVE INTO SCHOOL
PROP. 2'-60 CURB
TRANSITION TO 11 .4 /
r/1
ENTO SITE
PROP. 5' CR LB OW (1205.07)
30'R 101X70' &
f TYP. 10')r550' SIGHT—E?�45TING OYERHFi1[�POWERLiNE
TRIANGLE FOR / E�BRIVE CULVERT i
WE \
Z T — EXISTING 16" FORCEMA1N
/
Nsr�J SCH00 ZONE SIGNAGE AND
7'O6 E Fes_ — _ PAVEMELLT MARKING PER
144.44' _ ~ 1— —�� -- - �` '� NCDOT SEE C-1 5 FOR
DETAIL IN SINGLE LANE.
r�41 tea"`~ FM \ •W ive Raba SR /fig..
— _ — �EDGI: OF PAVBKEM L _&W
M ` NTAIN FXISTiIVG � OF PAVEM� ~
r NO IMPROVEMENTS THIS --- �1_---,R-. _�� ���-�,TI���-
AREA (EXCEPT TH SCHOOL r x- '"�~--- _."t�`_ --FV_,_'`~~
ZONE SIGNAGE AS SHOWN} � ~ `1 � F4,`�'
PROPOSED IMPROVEMENTS TO POPLIN FAD LEFT TURN INTO SITE
2" SURFACE COURSE, S 9.5C
(IN TWO LIFTS OF 1" OR IN A 2" LIFT)
j_qW_"VARIES TO MAINTg1N 12' LANE 3" BINDER- I 19.00
5" BITUMINOUS CONCRETE BASE COURSE TYPE B 25.00
CREATE A 5' SHOULDER Q
WITH AN 18* DEEP MIN.
i SWALE AT I % SLOPE MIN.
i LINED WITH SC75 NORTH
COMPACTED SUBGRADE AMERICAN GREEN LINER
(95% STANDARD PROCTOR)
TYPICAL WIDENING SECTION
N TS
GENERAL NOTES
1_ THE BOUNDARY/SURVEY PROVIDED BY LAWRENCE ASSOCIATES - SEE EXISTING CONDITIONS
C-1 FOR MORE DETAILS.
2. ALL DIMENSIONS ARE TO FACE OF CURB, EDGE OF PAVEMENT, OR FACE OF BUILDING
UNLESS OTHERWISE NOTED-
3. ALL IMPROVEMENTS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH STATE: AND LOCAL
STANDARDS.
4. SIGHT TRIANGLES SHOWN ARE THE MINIMUM REQUIRED FOR NCDOT.
5. ANY DISCREPANCIES FOUND IN THE FIELD SHALL BE CALLED TO THE ATTENTION OF THE
OWNER PRIOR TO PROCEEDING WWII THE WORK.
6. PRIOR TO BEGINNING CONSTRUCTION, THE CONTRACTOR SHALL VERIFY THAT ALL REQUIRED
PERMITS AND APPROVALS HAVE BEEN OBTAINED FROM ALL REGULATORY AUTHORITIES.
7. THE CONTRACTOR SHALL CONTACT ALL OWNERS OF EASEMENTS, UTILITIES, AND
RIGHT-OF-WAYS, PUBLIC AND PRIVATE, PRIOR TO WORKING IN THESE AREAS.
CONTRACTOR SHALL MAINTAIN THE SITE IN A MANNER SUCH THAT WORKMAN AND THE
GENERAL PUBLIC SHALL BE PROTECTED FROM INJURY. FOLLOW THE MUCTD MANUAL FOR
TRAFFIC CONTROL IN THE WORK ZONE.
9. DO NOT SCALE DRAWING FOR ACTUAL DIMENSIONS, AS IT IS A REPRODUCTION AND
SUBJECT TO DISTORTION.
10. CONTRACTOR SHALL FURNISH AND INSTALL ALL PAVEMENT MARKINGS AS SHOWN ON THE
PLANS.
11. ALL SIGNS, PAVEMENT MARKINGS, AND OTHER TRAFFIC CONTROL DEVICES SHALL CONFORM
TO THE LATEST EDITION OF THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES.
12. ALL PAVEMENT MARKINGS SHALL BE FOUR (4) INCH WHITE LINES UNLESS INDICATED
OTHERWISE ON THE DRAWINGS,
13. ALL ROAD IMPROVEMENTS AT POPLIN ROAD TO BE COORDINATE WITH NCDOT PRIOR TO
CONSTRUCTION (48 MRS. PRIOR NOTICE) REFER TO WIDENING DETAIL SHEET C-7.
14- REFER TO SHEET C-5 FOR GRADING AND DRAINAGE.
NOTE: WHEN REVIEWING THE DRAINAGE FOR THE PROP. DRIVE, THE DRIVE HAS
BEEN LOCATED AT THE TOP OF THE RIDGE AS ORIGINAL DRIVE WAS SHOWN WITH
MOST OF THE PROP. GRADING DRAINING INTO THE SITE. A HIGH POINT IN THE
ENTRANCE, APPROXIMATELY 90' OFF THE CENTER OF POPLIN ROAD, TO SHEET
WATER RAI TO POPLIN ROAD. THIS ALLOWS A MINIMAL FLOW BACK TO POPLIN
AND MAINTAIN THE SAME FLOW INTO THE DITCH SYSTEMS. TI$ ENTRANCE
DRAINS ACROSS THE INTERSECTION AT I % MIN. IN A SMALL GUTTER SECTION
CREATED BY THE DRIVE AND EXISTING PAVEMENT. THE FLOW GETTING BACK TO
POPLIN WILL ONLY BE 0.07 ACRES (0.47 CFS FOR A 10 YEAR EVENT) GOING ACROSS
BACK INTO THE DQSTING DITCH ON THE EAST SIDE OF THE ENTRANCE. THE WEST
SIDE IS TO FLOW AWAY FROM THE ENTRANCE AS IT WAS ORIGINALLY FLOWING.
THIS WILL ALLOW THE DRAINAGE TO FLOW AND NO DISTURBANCE TO THE
EXISTING 16 INCH FORCEMAIN UNDER THE ENTRANCE
GRAPHIC SCALE
so 0 25 W 100 200
( ai
I inch = 50 f#,.
O
o"'
HI -VISIBILITY CROSSWALK
ISTANDARD CROSSWALK I
CO
C�
~Qr-E
z
y " o
STOPGAR
z _ .
2 ca
r0-rl�to
" _>
F-1of:3
o0Mz=
z -n z n m
SIDEWALK
GC
�
H U 0
v x: (a 5
M
4' MIN. 6' MIN. 8" WHITE
0
Q t--1
II C r�-1
0 m z
lAR:R
TO PEDESTRIAN CROSSWALK LINES
CROSSNALK CROSSWALK
N 0 J
U.
• D"yn
zm
rn z
UI
24" WHITE
CROSSWALK LINE
r L]
24" GAP
41
SIDEWALK
24" WHITE
CROSSWALK LINE
-
M
Z
0
>
wCR
p fn
M C =
--
�..� a �
cc M
10, MIN. WIDTH
C he
m>
0CC[!]
z A
© U
v
¢ z
CD
GENERAL NOTES
Z W �
> Fd
n
1- THE MINIMUM WIDTH OF STANDARD CROSSWALKS IS 6 FEET. TfW MINIMUM WIDTH
� W tj
Z r-E
OF HI -VISIBILITY CROSSWALKS IS $0 FEET.
= UJ
yQ
2- CENTER CROSSWALKS TO THEIR CORRESPONDING WHEELCHAIR RAMPS, BUT DO NOT
W 4C LLI
n
SET THEM WITHIN THE INTERSECTION AREA ESTABLISHED BY BISECTING THE
•,,,J d Q
O
INTERSECTION RADII.
Approved Stormwater Permit Document:,
z
3- PLACE STOP BARS A MINIMUM OF 4 FEET FROM NEAREST CROSSWALK LINE'BeoWdVctron io accordance with these documents is
LU
WITHIN THE AREA OF A WHEELCHAIR RAMP. PLACE STOP BARS PARALLELTOrequired by the stormwater permit. North Carolina
CROSSWALK LINES, BUT CAN BE PLACED PERPINDICULAR TO TRAVEL LANES. rules require that the stormwater system designer
LEGEND during construction. certify conformity with the
4- COORDINATE PLACEMENT OF CROSSWALKS IN ALL CASES WITH THE LOCATION WanInspect
and s; and cent, compliance with the
WHEELCHAIR RAMPS. (SEE SIGNAL PLANS). stormwater
r rules.
« DIRECTION OF stormwater rules. (15A iV_ A 2Fi .1008 (j ))
» TRAFFIC FLOW Pe it #__5,_ Date_S
R1(;R WHEELCHAIR RAMP by NCDivision of Wkar QuaI'
# -__ evislasl Date_ 2� .
Sheet ��-� R
1 OF1
SHEET i OF 1
+� lE�ET/j
205.07
1205.07
Architeewre
Engineering
Land PlaIJllling
Project Management
6
.�w��CAa`'''�.
SEAL
- 22937
E
-
%,� FpGIHE�. vj
Ar
'�fr�lllillll�
ti4%,��T�,;cy�,r \
4ptCERT, NQ r 310 g h
r ry
Progress Dates
4--09-08
OVMfR5HIP OF IN5TRUMENT5 OF SERVICE
ALL REPOKT5, 5PECIFICATION5, PLAN5,
COMPLFrER FILES, FIELC DATA, NOTES AND
OTHER DOGUMENT5 AND IN5TRUMENT5 OF
SERVICE SMALL REMAIN THE PROPERTY OF
711E DE51GN PROFESSIONAL,. THE DESIGN
PROFESSIONAL SHALL RETAIN ALL
COMMON MAW, STATUTORY AND OTHER
RESERVED RIGHTS, INCWDINGTHE
COPYRIGHT THERETO. TH15 DRAWING 15
THE PROPERTY OF
YATE5-CHROT75ERG-HUGHE5 ARCHITECT5
AND 15 NOT TO BE REPRODUCED OR
COPMD IN WHOLE OK PART. IT 15 NOT TO
BE USED ON ANY OTHER PROJECT AND 15
TO BE RETURNED ON REQUEST.
0 COPYRIGHT YCH ARCHTECT5 2008
TRAFFICLVIPR0V.dwg
Date 2-04-08
Revisions
f?4
ear sheet 4-14-08
CDQT COMMEIYI'S 4-29-08
POPLIN ROAD
IMPROVEMENTS
CIVIL SITE
C-7
Of 7 Total
Comm. No. 27058.00

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POPLII`I GROVE ELEMENTARY SCHOOL
SHEET INDEX
TITLE SHEET 1
GRACING & DRAINAGE PLAN 2
DETAILS 3
PRECONSTRUCTION DRAINAGE 4
POST CONSTRUCTION DRAINAGE 5
UNION COUNTY PUBLIC SCHOOLS
400 NORTH CHURCH STREET
MONROE, NC 28112
JuLY 2012
PROJ, NO.20'I2756
MAL ,
35661
'AON,
Lf110
Approved Storrr water N r�,xE_ xrra Yesrr.•:rL
�"owruction in acco :lance %''I?h
tf.:gaired by ti:e .tur:mwater ;per . ,. ":)gti grrohra,
rules "Dirt; W.at it;w sSos:rrvr3::Ar sv.'.le-:;rsiqncr
Inspect during
plant an,! spec.; and cert..
.Armwater rules i 1. -t, �XAC :?H
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Chc-amho3
129 North First St., Albemarle, NC 28001 704-984-6427
NCBELS Firm License No. C-1660
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STORAGE AREA
CATCH
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GENERAL NOTES:
1. SEDIMENT SHALL BE REMOVED AND TRAP RESTORED TO ITS ORIGINAL DIMENSIONS
WHEN THE SEDIMENT HAS ACCUMULATED TO 1/2 THE DESIGN DEPTH OF THE TRAP.
2. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH
A MANNER THAT IT WILL NOT ERODE.
3, THE STRUCTURE SHALT. BE INSPECTED AFTER EACH: STORM EVENT BY THE
FINANCIALLY RESPONSIBLE PARTY OR HIS AGENT AND REPAIRS MADE AS NECESSARY,
4. CONSTRUCTION OPERATIONS SHALL BE CARRIED OUT IN SUCH A MANNER THAT
EROSION AND WATER POLLUTION ARE MINIMIZED.
5. THE SEDIMENT TRAP SHALL BE REMOVED AND THE AREA STABILIZED WHEN THE
DRAINAGE BASIN HAS BEEN PROPERLY STABILIZED.
MAINTENANCE NOTES:
INSPECT INLETS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (.5 INCH OR GREATER)
RAINFALL EVENT. CLEAR THE MESH WIRE OF ANY DEBRIS OR OTHER OBJECTS TO
1. PROVIDE ADEQUATE FLOW FOR SUBSEQUENT RAINS. TAKE CARE NOT TO DAMAGE OR
UNDERCUT THE WIRE MESH DURING SEDIMENT REMOVAL. REPLACE STONE AS NEEDED.
STONE
WIRE MESH INLET PROTECTION
NTS
DUCTILE IRCN,I
GRATE WITH CAST
IRON FRAME
INLET VARIES,
REF. PLANS
"(1) ADAPTERS CAN BE MOUNTED ON ANY
ANGLE 00 TO 3W, TO DETERMINE M040 M
ANGLE BETWEEN ADAPTERS SEE
NYLOPLAST DRAWING NO.7001-110-012,
HINGED GRATE
COVER
NYLOPLAST # 1599CGP
' APPROX, DRAIN AREA = 5125
$a IN APPROX. WEIGHT WITH
j FRAME = 53.70 LBS.
NaTEs: �--
1.)AREA INLETS SHALL BE NYLOPLAST STYLE OR
EQUAL. ALL COMPONENTS INCLUDING BUT NOT
LIMITED TO COVER AND GRATE MUST MEET OR
EXCEED THOSE SET FORTH WITHIN THIS DETAIL
2.)PEDESTRIAN GRATE HAS H-10 MEDIUM DUTY
RATING aUAL1TY: MATERIALS SHALL CONFORM TO
ASTM ASM GRADE 70-50.05 & AA&CLASS 308
MATERIAL.
3.) JUNCTION BOXES SHALL USE 15" SOLID H-20
LOADING GRATES.
SIZE OF OPENING LETS REOUIREMENTS OF
AMERICAN DISABILITY ACT AS STATED IN FEDERAL
REGISTER PART III, DEPARTMENT OF JUSTICE. 28
CFR PART 36. NONDi$CRIMiNAT10N ON THE BASIS
OF DISA131LITY BY PUBLIC ACCOMMODATIONS ANO
IN COMMERCIAL FACILITIES; FINAL RULE.
IS" HDPE YARD INLET
NTS
K
GENERAL NOTES:
1. FILTER FABRIC FENCE SHALL BE A MINIMUM OF 32" IN WIDTH AND
SHALL HAVE A MINIMUM OF 6 LINE WIRES WITH 12" STAY SPACING.
2. WOVEN FILTER FABRIC SHALL_ BE USED AT ALL LOCATIONS REQUIRING
THE USE OF SILT FENCE.
3. STEEL POSTS SHALL BE 5'-0" IN HEIGHT AND BE OF THE
SELF -FASTENER ANGLE STEEL TYPE.
4. SILT FENCE SHALL BE PLACED A MINIMUM OF 5' TO 10' FROM TOE OF SLOPE
TO PROVIDE ROOM FOR SEDIMENT STORAGE AND DECREASE FLOW VELOCITIES.
5. TURN SILT FENCE UP SLOPE AT ENDS.
6, WHEN FABRIC IS USED WITH WIRE MESH 8' CENTERED POSTS MAY BE USE.
MA&UN&&E NOTES:
1. FILTER BARRIERS SHALL BE INSPECTED BY THE FINANCIALLY
RESPONSIBLE PARTY OR HIS AGENT IMMEDIATELY AFTER EACH
RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL.
INSPECT SILT FENCE AT LEAST WEEKLY, REGUARDLESS OF RAINFALL,
ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY.
2. SHOULD THE FABRIC DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END
OF THE EXPECTED USABLE LIFT~ AND THE BARRIER STILL IS NECESSARY, THE
FABRIC SHALL BE REPLACED PROMPTLY.
3. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT OR SILT
FENCE. SHOULD BE REPLACED. THEY MUST BE REMOVED WHEN DEPOSITS REACH
APPROX. HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN
PLACE AFTER THE SILT FENCE IS REMOVED SHALL BE DRESSED TO CONFORM
TO THE EXISTING GRADE. PREPARED AND SEEDED,
L�
SILT FEIICE DETAIL
NTS
STEEL POST
FILTER FABRIC
STANDARD SILT FENCE
SEEDING MIXTURE RATE (lb/acre)
Tall Fescue 100
Sericea Lespedeza 30
Robe Lespedeza 10
SEEDING NOTES
In Eastern Piedmont, and 25 lb/acre Pensacola Bohiagross or
10 lb/acre common Bermudograss. Use common Berrnudagrass
only where is is unlikely to become a pest. After Aug. 15 use
unscarified sericea seed Where a neat appearance isdesired,
omit sericeo and substitute 40 lb/acre Bahiagrass or 15
lb/acre Bermudograss. To extend spring seeding dates into
June, add 15 lb/acre hulled Bermudograss. However, after
mid -Apr, it is preferable to seed temporary cover,
NURSE PLANTS
Between May 1 and Aug. 15, odd 10 lb/acre German millet or
15 lb/acre Sudangrass. Prior to May 1 or after Aug. 15 add
40 lb/acre rye (grain).
SEEDING DATES Best Possible
Fail: Aug. 25 - Sept. 15 Aug. 20 - Oct. 25
Late Winter: Feb. 15 - afar. 21 Feb, 1 - Apr. 15
Fall is best for tall fescue and late winter for lespedezas.
Overseeding of Kobe lespedezo over fall --seeded tall fescue is
very effective_
SOIL. AMENDMENTS
Apply lime and fertilizer according to soil tests, or apply
4,000 lb/acre ground agricultural limestone and 1,000 Ib/ocre
10-10-10 fertilizer.
MULCH
Apply 4,000 Ib/ocre grain straw or equivalent cover of another
suitable mulch. Anchor straw by tacking with asphalt, netting,
or roving or by crimping with a mulch anchoring tool, A disc
with blades set nearly straight can by used as a mulch
anchoring tool. Netting is the preferred anchoring method on
steep slopes.
MAINTENANCE
Refertilize in the second year unless growth is fully adequate.
May be mowed once or twice a year, but mowing is not necessary.
Reseed, fertilize, and mulch damaged areas immediately.
Reference: Table 6.11 k from NC Erosion and Sediment Control
Planning and Design Manual, 1988.
SEEDING SPECS
NTS
UNION COUNTY
NORTH CAROLINA
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