SW1240601_Plansheet - Grading/Drainage Plan_20241001

y / PRELIMINARY
GENERAL NOTES \ \ T NOT FOR CONSTRUCTION
1. ALL EXISTING VAULTS,MANHOLES,STORM DRAIN STRUCTURES,VALVE BOXES,CLEANOUTS,ETC.SHALL BE ADJUSTED AS NEEDED TO MATCH FINISHED I �- \ \ �o / 15"RCP - *+
GRADES. - - - - 1065�5 ++++++++� \ /
2. ALL BACKFILL,COMPACTION,SOILS TESTING,ETC.SHALL BE PERFORMED BY THE OWNER'S INDEPENDENT TESTING LABORATORY. +' / /
3. ALL ELEVATIONS ARE BASED ON NC GRID NORTH(NAD 83). /I / / / +++++
4. A PRECONSTRUCTION MEETING MUST BE SCHEDULED PRIOR TO WORK,GRADING AND INSTALLATION OF EROSION CONTROL,CONTACT NCDEQ AT
(919-791-4200). /\// ++
5. UTILITY LOCATIONS ARE TO BE FOUND BY CALLING NC ONE CALL.
6. ALL HANDICAP PARKING SPACES AND STRIPED ACCESSIBILITY AISLES ARE TO HAVE NO MORE THAN A 1:50 SLOPE IN ALL DIRECTIONS.
7. ALL SIDEWALKS ARE TO HAVE NO MORE THAN A 1:20 SLOPE FOR THE LENGTH OF THE SIDEWALK AND NO MORE THAN A 1:50 SLOPE FOR THE WIDTH OF THE
SIDEWALK.
8. IF CONTRACTOR NOTICES ANY DISCREPANCIES IN ANY OF THESE SLOPE REQUIREMENTS,IT IS THE CONTRACTOR'S RESPONSIBILITY TO CONTACT THE OWNER
PRIOR TO POURING ANY CONCRETE SO THAT A SOLUTION CAN BE FOUND.
9. CONTRACTOR TO CONTACT DUKE LIGHTING PRIOR TO CONSTRUCTION AROUND LIGHT POLE ON SITE.
ROOF LEADER NOTES \ / / / \ �� (DB9 8 �� _ ; -106 -
1. THE CONTRACTOR SHALL CONNECT TO ALL DOWNSPOUTS PER THE DETAIL ON SITE DETAIL SHEETS,SEE ARCHITECTURAL PLANS FOR EXACT DOWNSPOUT \/ / \ � / 106� \
LOCATIONS,AND SHALL PIPE THESE CONNECTIONS VIA ROOF DRAINAGE PIPING A MINIMUM OF 6-FEET AWAY FROM ALL BUILDING FOUNDATIONS.THE ROOF
DRAINAGE MAY BE PIPED VIA 6"(SCH 40)MIN.TO THE NEAREST RESPECTIVE DRAINAGE INLET.ROOF DRAINS MAY ALSO BE PIPED VIA 4"(SCH 40)PVC TO AND I I \\ ° 060
THROUGH THE FACE OF CURB.IF THE CONTRACTOR CHOOSES THIS METHOD THEN THE PIPE OUTLET AT THE CURB SHALL BE FLUSH WITH THE CURB FLOW �n I oyh / / 1059 - \ i
LINE AND A CONSTRUCTION JOINT SHALL BE PLACED IN THE SIDEWALK ABOVE THE LEADER CROSSING.MULTIPLE DOWNSPOUT LOCATIONS SHOULD NOT BE ' \ \ ^000 SS
COMBINED IF THIS METHOD IS USED.ROOF DRAINS MAY ALSO BE PIPED TO POP-UP EMITTERS PER THE DETAIL ON SITE DETAIL SHEETS,WHICH AGAIN SHALL o`O / ' 1058
BE LOCATED A MINIMUM OF 6-FEET AWAY FROM ALL BUILDING FOUNDATIONS.THE CONTRACTOR MAY SUBMIT A SHOP DRAWING OF PROPOSED PIPING
LOCATIONS FOR APPROVAL PRIOR TO INSTALLATION.
I
111 - _
STORM STRUCTURE NOTES \ \ I I 10S6 _ i
1. TOP ELEV.OF DROP INLET(DI)IS TOP OF GRATE co
2. TOP ELEV.OF CATCH BASIN(CB)IS TOP OF CURB -
3. CB CATCH BASIN,SEE DETAIL SHEET - - - - I \ I 1 �s - - - m
4. YI YARD INLET,SEE DETAIL SHEET - - - o"
Q (� CID o
U `n �
LEGEND: co \ ^ Ln = m c14
CID \ / A\ V �/ -1054� I i O Z m 6
OHE EXISTING OVERHEAD ELECTRIC LINE c� \ V �� \ V A C13-110 x LL Z
EXISTING ELECTRIC POLE � I \ \ A � I CB-109 \ L CD
_JDIVERSION DITCH#1 � J
EXISTING FENCE > � wX
c3i co
300 EXISTING MAJOR CONTOURS • • ¢ Z
_ V
-302- EXISTING MINOR CONTOURS l7 V V \ \ V A� V -J
- - EXISTING RIPARIAN BUFFER I \ \ \ / �VQ \ \\ \\\\ � �E N
- - - - - EXISTING STREAM W
F YI-111 10g4
���
EXISTING TREES \/ m
0 0 0 0 0 0
EXISTING WETLAND 15�RCP �7pS�
L El
-108
j El El CB
PROPOSED CATCH BASIN / / /
® PROPOSED DRAIN INLETs t
WD PROPOSED FLARED END SECTION - - - - / / y I / // ���I %its !6��
•
300 PROPOSED MAJOR CONTOURS
302 PROPOSED MINOR CONTOURS / I+++ CB-107
I*+*+
PROPOSED RIP RAP \ +�+�, - io
dj i / �y I
PROPOSED STORM MANHOLE 11 I+++' / SS�� ��
�-- � , ��_
i Zo
PROPOSED STORM PIPE ****** o° 04
� �OS3�
` / ,Z5 / I I
++ ++ ° / / ��00 �] Z n 1ps��i
PROPOSED YARD INLET / / �«+++++ � z z �/ m LL
_ _ _ _ / +++�+++ // z � � � �I
+.�.+. / ,� - O �p5��
MAINTENANCE AND ACCESS EASEMENT I --
0 000.00 GROUND PAVEMENT ELEVATION - -
/ /
Bl TC 000.00 TOP OF CURB ELEVATION +4+%+
LP 000.00 LOW POINT ELEVATION + : +++ CD
C
++ / / - - �! - -�- 1045-
- - K_
+�++/++�+ / / / ° A --- - - - \\ 0
- - - - /
/ + + + + JOf
t ^
++*++«*+/++ I I /❑ // CB-106 Q Q
,+ / / �_ - -1040 a STORM SYSTEM DATA STORM STRUCTURE TABLE / / ���/ +•4*+ +��p+ A ° ° 10 J _ _ o z
/ +++++I++++7+ �/ / / / - - -�
STRUCTURE RIM EL STRUCTURE IN INVERT 1 N INVERT OUT / / + j // �/ / oe5 _
DIVERSION DITCH#2 a 1 w
SIZE LENGTH SLOPE MATERIAL
DOWNSTREAM UPSTREAM / / / / � / � -1
1034 _ r -
STRUCTURE STRUCTURE CB 102 1036.40
CB-101 1049.41 1036.30 / *�*f*
CB-106 1038.50 - - � � � +� �s� / / / / / � / / �, � o _ TOP OF DAM:1041.00'
uJ
+ + 0S YI112 /`� ��
CB-103 CB-104 15 84.65 1.00% RCP
�, cn
o CB 102 1050.16 CB 103 1040.57 1036.99
- � � � � � �+�+'I+ +� � / � / / / � / / FES-1001 0
CB-102 CB 103 15 148.68 1.00% RCP YI-112 1045.13 / - *«+ + / / / / CB-101 11 -�,-
+ + �' 2�RAP o -
1 l R i � o
CB-101 CB-102 18 59.15 1.00% RCP CB-103 1049.77 CB-104 1042.15 1042.05 \ V'+ �* I / / /�'� CB-10
1 0 1 -
FES-100 CB-101 24 12.01 2.50% RCP CB-104 1047.72 1043.00 I +�«'+ * I / / / / A / / / �� M \
Cl)
FES-SCM JB-SCM 18 22.67 3.00% RCP CB-106 1050.85 CB-107 1039.57 1039.47
CB-102 YI-112 15 37.08 1.00% RCP Cu_IV[ 1051.59 Cu_108 1043.69 1041.47
oRISER-SCM - V�
CB-108 YI-111 15 80.30 2.69/o RCP CB-109 1045.70 +I
CB-108 1053.57 25 /
YI111 1045.70 1045. � y�
3
CB-109 CB-110 15 17.00 1.00% RCP DIVERSION DITCH#
� � �
1 I II
CB-109 1053.63 CB-110 1048.83 1048.73
CB 108 CB 109 15 113.04 2.68% RCP / +
CB-110 1054.12 1049.00
CB-107 CB-108 18 51.57 3.02% RCP - - - - - - - - - - - - - - - 7- - - - - -
07 % RCP FES-100 1037.52 CB-101 1036.00
CB 106 CB-1 �\
o FES-SCM 1032.79 JB-SCM 1015.20 / \ \ o V A \ I I I /, `° FES-SCM
CB-101 CB-106 24 55.74 1.74/o RCP // \ o / / I / Q
RISER-SCM 1039.50 1032.00 /A \ A A \ \ / l
YI-111 1051.63 1047.86 JB-SCM
/
YI-112 1049.41 1045.50
0
NOTE:RIM EL IS SET TO BOC
Q
A \ 0
EMERALD VILLAS CB-
,
104� � _\
Diversion Ditch Summary Index Table
s
CHANNEL DEPTH OF SIDESLOPE(M) TOP WIDTH (TW) BOTTOM WIDTH LINING FLOW DEPTH (D) VELOCITYco
CD
DITCH #1 1.25 FT. 3 :1 7.50 FT. 0.00 FT. STRAW NET SINGLE BLANKET 0.75 FT. 3.58 FT/SEC / - A \ \ ��� ° �� � 4 _
DITCH #2 1.20 FT. 3 :1 7.20 FT. 0.00 FT. STRAW NET SINGLE BLANKET 0.68 FT. 3.97 FT/SEC
DITCH #3 2.05 FT. 3 :1 12.30 FT. 0.00 FT. COCONUT TURF REINFORCED MATTING 1.55 FT, 6.37 FT/SEC
10483�
42
ALL CONSTRUCTION TO BE IN ACCORDANCE WITH LOCAL MUNICIPALITY / DIVERSION DITCH v _ _- - Design By: rsG
NCDEQ AND NCDOT STANDARDS SPECIFICATIONS, AND DETAILS l / I / vv _ y _ _ - _ Date: 03.01.24
NAD83 I NAVD88 Project#: P230604
REV# DATE DESCRIPTION SCALE 1"=50'
SHEET
11 0 50' 100'
C500
Q