SW3231102_Plansheet - SCM Detail_20240905

GRADING NOTES \\0%%%%ll1
1. SITE ACREAGE: 12.91 A.C. ��`` ��\A•CAR OZ�
2. ALL CONTOURS AND SPOT ELEVATIONS INDICATE FINISH GRADE OF SURFACE. ADJUST :'Q� 9l•'.
ACCORDINGLY TO ESTABLISH SUBGRADE OR SUB-BASE ELEVATIONS. SEAL
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3. PRIOR TO BEGINNING CONSTRUCTION, CONTRACTOR SHALL BE RESPONSIBLE FOR
VERIFYING AND FIELD LOCATING ALL UTILITIES WITHIN THE PROJECT LIMITS SO THAT �'% FHGINE�-�•''• .��
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CONSTRUCTION WILL NOT DAMAGE OR INTERFERE WITH EXISTING UTILITY LINES. IF
ANY UTILITY LINES ARE DAMAGED, IT IS THE CONTRACTOR'S RESPONSIBILITY TO
_ _ REPAIR AND/OR REPLACE THE UTILITY LINES AT THE CONTRACTOR'S EXPENSE.
T�T FINISHED REPLACEMENT OR REPAIR SHALL MEET THE APPROVAL OF THE SPECIFIC 9/3/2024
UTILITY OWNER.
00,� 4. BEFORE STARTING SITE EXCAVATION, CONTRACTOR SHALL STRIP ALL TOPSOIL FROM
THE PROJECT AREA AND STORE IN A PROTECTED LOCATION THAT SHALL NOT •
INTERFERE WITH PROJECT DEVELOPMENT. CONTRACTOR SHALL BE RESPONSIBLE
FOR REDISTRIBUTING TOPSOIL IN FINISH GRADE AREAS.
5. ALL FILL AREAS SHALL BE COMPACTED IN ACCORDANCE WITH THE GEOTECHNICAL
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REPORT.
Railroad RW s �� ,&j
6. CONTRACTOR SHALL COORDINATE HORIZONTAL AND VERTICAL CONTROL WITH
ENGINEER OR SURVEYOR PRIOR TO COMMENCEMENT OF CONSTRUCTION.
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M.E.G. I O I 7. UTILITIES SHOWN ARE THOSE VISIBLE AT THE TIME OF MAPPING. UNDERGROUND
F11 I H 11111 m 1 \ O O O I/I UTILITIES SHOWN WERE LOCATED BY OBSERVATION OF SURFACE FEATURES. .
I / ` w O LOCATION OF UNDERGROUND UTILITIES ARE APPROXIMATE AT BEST. UNMARKED UNDERGROUND UTILITIES MAY BE PRESENT. CONTACT UTILITY OWNERS PRIOR TO
EXCAVATION OR DEMOLITION.
8. ALL DISTURBED AREAS NOT TO RECEIVE PAVEMENT SHALL BE FINE GRADED TO
O O O DRAIN, BACKFILLED WITH A MINIMUM OF 6"TOPSOIL, SEEDED OR SODDED, FERTILIZED,
AND PROTECTED PER STANDARD NCDOT SPECIFICATIONS. CONTRACTOR IS 1,
O O RESPONSIBLE FOR RE-SEEDING AND/OR RE-SODDING UNTIL THE INITIAL STAND OF
�co GRASS HAS BEEN ESTABLISHED.
/ / I 9. BENCHMARK INFORMATION AS PROVIDED BY THE SURVEYOR OF RECORD SHALL BE
USED TO CONFIRM EXISTING TOPOGRAPHIC CONDITIONS PRIOR TO THE
I � � � � � O� COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. ANY CONFLICT AND/OR
. DISCREPANCIES ENCOUNTERED BETWEEN THE EXISTING TOPOGRAPHY SHOWN AND
ACTUAL SITE CONDITIONS SHALL BE REPORTED TO THE OWNER AND ENGINEER
IMMEDIATELY.
V N
/ O O EXISTING BRICK, O O O 10. ANY EXCESS SOIL SHALL BE EXPORTED FROM THE SITE BY THE CONTRACTOR AT NO O
2 ' / O BLOCK & METAL O O ADDITIONAL COST TO THE OWNER. ANY FILL MATERIAL REQUIRED TO BE IMPORTED 0
U r TO THE SITE FOR PROPER GRADING AND FINISHING OF PROPOSED SITE ELEVATIONS10 N
BUILDING SHALL BE APPROVED BY THE OWNER PRIOR TO PLACEMENT AND COMPACTION.
18 11, THE CONTRACTOR SHALL NOT SCALE FROM THESE PLANS FOR FIELD SURVEY ry► I ❑
LOCATIONS.
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1 M w 12. IMPROPER GRADING/FINISHING OF CONCRETE OR DGA SURFACES WITHIN THE U w
PROJECT LIMITS OR ADJACENT RIGHTS-OF-WAY THAT RESULTS IN DRAINAGE :� Z
PROBLEMS SHALL BE REMOVED AND REINSTALLED TO IMPLEMENT POSITIVE W Q Q
DRAINAGE. � a Q
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13. THE CONTRACTOR IS RESPONSIBLE FOR SEDIMENTATION CONTROL OF ONSITE - N❑ 3
RUNOFF IN ACCORDANCE WITH "NORTH CAROLINA BEST MANAGEMENT" PRACTICES W 3
\ _ AND IN ACCORDANCE WITH THE NORTH CAROLINA EROSION AND SEDIMENT CONTROL X 3
\ O O O PLANNING AND DESIGN MANUAL. PERIMETER OF DRAINAGE AREA TO RECEIVE SILT
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FENCE AND ALL CHANNEL WAYS TO RECEIVE ROCK CHECKS.
14. ALL DITCHES DISTURBED DURING CONSTRUCTION SHALL BE RETURNED TO THEIR
00 Q Q �/ ORIGINAL LINES AND GRADES. THE IMPROVEMENT OF THIS SITE SHALL NOT DETOUR W a
OR OBSTRUCT THE NECESSARY DRAINAGE REQUIRED.
15. THE DRAINAGE PATTERN CREATED BY THE DEVELOPMENT OF THIS SITE SHALL BE
CONSISTENT WITH THE PREVIOUS STORMWATER DRAINAGE PATTERNS. THE
SEQUENCE OF CONSTRUCTION ACTIVITIES \ ✓'� \\\ � 778 777 ADJACENT PROPERTY OWNERS SHALL NOT REALIZE ANY INCREASE IN RUNOFF TO DRAWN BY
THEIR PROPERTY.
1. MARK THE LIMITS OF DISTURBANCE \ V
� PERMANENT ROCK DMG
2. SET UP AN ON-SITE PRE-CONSTRUCTION MEETING WITH ROWAN COUNTY \ \ CHECK �/ `\ 16. ALL POTENTIAL EROSION SHALL BE CONTROLLED IN SUCH A MANNER SO AS TO
PLANNING DEPARTMENT \ \ \ \ (SEE C210 DETAIL` /ELL
PREVENT ANY DISPLACEMENT OF SILT TO THE ADJACENT PROPERTY OWNERS OR
3. INSTALL SEDIMENT AND EROSION CONTROL MEASURES AS SHOWN ON \ RIGHT-OF-WAY. THIS CONTROL SHALL BE IMPLEMENTED THROUGH PROPER
PLANS ,,a 1 IORETENTION ` INSTALLATION OF SILT FENCE OR STRAW BALES DURING THE CONSTRUCTION CHECKED BY
4. INITIAL INSPECTION OF PHASE 1 EROSION CONTROL MEASURES PRIOR TO co
DURATION AND MAINTAINED UNTIL PROPER GROUND COVER HAS BEEN ESTABLISHED
ISSUANCE OF MASS GRADING APPROVAL
5. RECEIVE REQUIRED APPROVAL BETWEEN PHASES I Cep 17. THERE ARE NO WETLANDS LOCATED ON SITE. DARION GEORGE MADE THIS
6. STRIP THE SITE OF TOPSOIL AND ROUGH DIRT WORK \ �� \ J OUT T STRUCTURi DETERMINATION BY USING NORTH CAROLINA PUBLIC WETLANDS.
7. INSTALL SITE UTILITIES f I (SEE 210 DETAIL
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8. INSTALL ALL PAVEMENT I m / 18. DETENTION POND AREA SHALL BE CONVERTED TO BIORETENTION AREA PRE
9. BACKFILL AND RE-GRADE AREAS I / BIORETENTION PLAN VIEW DETAIL (C210) FOLLOWING COMPLETION OF PHASE 1, SEPTEMBER 3, 2024
10.PERMANENTLY SEED ALL DISTURBED AREAS I / EN)ERGEN SPI LWAY / AINT NC
11.REMOVE ALL SEDIMENT AND EROSION CONTROL MEASURES, BACKFILL I r �� / I.E. ((N) _ �77.0q ACCESS
EMERGENCY SPILLWAY, RESTORE SURFACE IF REQUIRED / / tx I.E. ?UT) - 771.0)b / 'I \
WIDJ(H= 5 T - DRAINAGE EASEMENT EXTENTS Q
EROSION CONTROL NOTES I EE C210 DET�L)
5' AROUND RIM OF g
1. EROSION CONTROL SHALL BE MAINTAINED AT ALL TIMES IN ACCORDANCE WITH BIORETENTION CELL PLUS cq
NORTH CAROLINA BEST MANAGEMENT PRACTICES AND THE "NORTH CAROLINA \ -.- MAINTENANCE ACCESS) z Do w
EROSION PREVENTION AND SEDIMENT CONTROL FIELD GUIDE". / /�� `�' O CIO N N
2. EROSION CONTROL PREVENTION MEASURES SHALL BE INSTALLED PRIOR TO / / ^
STRIPPING OF TOPSOIL AND VEGETATIVE COVER. IF THIS IS IGNORED, THE PROJECT / / / / / / / / / / �`v / \ \ \ �i�
WILL BE SUBJECT TO BEING SHUT DOWN IMMEDIATELY WITHOUT NOTICE. THE / / / / / ^ RIP-RAP \p o N
PROJECT WILL NOT RESUME UNTIL PROPER SILT PROTECTION HAS BEEN INSTALLED / / / / / / / / ( DEYAIL) �! w N
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AND APPROVED BY THE CITY/COUNTY ADMINISTRATOR'S OFFICE. ALL POTENTIAL / / / -771 �- j �_ Q o M
EROSION SHALL BE CONTROLLED IN SUCH A MANNER SO AS TO PREVENT ANY
DISPLACEMENT OF SILT TO THE ADJACENT PROPERTY OWNERS, STREAMS, AND/OR / /
RIGHT OF WAY. THIS CONTROL SHALL BE IMPLEMENTED THROUGH PROPER _ J I / / / _ /j-� LEGEND m o 0
INSTALLATION OF SILT FENCE DURING THE CONSTRUCTION DURATION AND
MAINTAINED UNTIL PROPER GROUND COVER HAS BEEN ESTABLISHED. M.E.G. MATCH EXISTING GRADE z
/ �� ---TEMPORARY // Q
3. LIMITS OF DISTURBANCE SHALL BE CONFINED TO THE AREA OUTLINED ON THIS PLAN / / �_�_�_�� ROCK CHECK - - - -420- - - EXISTING CONTOUR z J (�
SHEET AND MORE SPECIFICALLY DEFINED AS BOUNDED BY THE PROPERTY LINE,
EXTENT OF TREE REMOVAL, AND EXTENT OF NEW GRAVEL. / / / �/ j� RE�p FARM ROAD / 420 PROPOSED CONTOUR Q J _
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PROPOSED WATER 00 Cn
COURSE Lu >_ 0 m
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Lu 0 0-
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SHEET
0 50 100 C209
PROJECT
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PEAK ATTENUATION 9/3/2024
VOLUME DESIGN VOLUME
EMBANKMENT
6"0 CLEANOUT MINIMUM WIDTH 10' FOR MAINTENANCE ACCESS
PROVIDE AT 778.00 — — — —
LEAST ONE PER
UNDERDRAIN 777.88 1—III—III—III—III—� I .
—
III—III—III—III—III—� I . EMERGENCY SPILLWAY
777.58
-1 I 777.43
-III-1 i ;r ;. _ I I-III-III-III-III-1 PEAK ATTENUATION
_ I I = III-III-I I OUTLET
l=I I Mi I !, 776.58 k: -III=1 I II II I I
GRATED LID W/ 144 SQ IN
-I .• : . . ;,, ' �;' I I— OPENING
_ (DRAWDOWN ORIFICE)
MULCH .
PLACE TWO TO FOUR INCHES OF TRIPLE — %,: 775.08 PRECAST CONCRETE
SHREDDED HARDWOOD MULCH FOR THE STRUCTURE
PORTION OF THE CELL THAT WILL BE .5'
INUNDATED. I— — — — — — — — — — — — — — -- -
MEDIA NOTES MEDIA MIX
MEDIA MIX
THE MEDIA SHOULD BE COMPOSED OF A HOMOGENOUS MIX OF THE FOLLOWING:
a. 75-85% MEDIUM COARSE WASHED SAND
b. 8-10% FINES (SILT AND CLAY); AND 6"0 PERFORATED UNDERDRAIN PIPE
c. 5-10% ORGANIC MATTER (SUCH AS PINE BARK FINES) �] N
0
NO MECHANICAL COMPACTION
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MEDIA DEPTH DO NOT MECHANICALLY COMPACT THE MEDIA. Z N
30 INCHES WATER OR WALK ON IT AS IT IS PLACED.
MEDIA P—INDEX Q
LESS THAN 30 IN NSW WATERS I 0
LESS THAN 50 ELSEWHERE
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MEDIA MAINTENANCE
MAINTAIN MEDIA SUCH THAT INFILTRATION RATE IS AT LEAST 1.0 IN/HR W 0 Q
Q >
BIORETENTION CELL CROSS SECTION Z N <
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l] x 3
0
Z In
W a
DRAWN BY
DMG
i' PLACE STONEY OVER CHECKED BY
KTC CLASS 11 CHANNEL BANKS
L - THE DISTANCE SUCH THAT POINTS A & B CHANNEL LINING 1' MIN.
ARE OF EOUAL ELEVATION )I (OVERFLOW l^' TOP Of BANK
` 11
A L � B 2 d Iw!!.{ ,� ��
DATE
2 1F r �t T MAX. _
r AT CENTER ` 'r' �- �1
SEPTEMBER 3, 2024
�.• ._ II 3 GEOTEXT1LE
,• sump �,9 CHANNEL BOTTOM FABRIC IMPERMEABLE
N WIDTH MEMBRANE
SPACING BETWEEN DITCH CHECK FABRIC CROSS SECTION A-A THRU STONE DITCH CHECK LU J ~
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U) U) 0�
2'•-0- MIN. 5'-o' 5; N N
TOP OF BANK Lu = _
A OVERFLOW
KTC NO. 57 CRUSHED STONE CROSS SECTION OF EMERGENCY SPILLWAY o N
2 2
0
fiLO�, '� �1 KTC CLASS II CHANNEL LINING ~ o M
o 'T �
6» m � 0
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AREA WHERE } UI Z
SECNMENT IS J A
TRAPPED i' SUMP Q
LENGTH AS REO'D. IN FIELD CEABI E z Q � (,
TO KEY INTO SIDE OF F LOPESITCH z
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STONE BERM TO BE REMOVED Q �_ c)
BY GRADING CONTRACTOR AFTER F_
GRASSING IS ES7rABLISHE0 TYPICAL DITCH CHECK SECTION W
W >_ 000
ROCK CHECK DETAIL z =
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SHEET
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PROJECT
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