20200283 Ver 1_EC Plan_20200220

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GRADING LEGEND
250.60
250
252
--LD--LD--
-c-c--c-
FLARED END SECTION
CONTOUR ELEVATION
STORM DRAINAGE
MAJOR CONTOUR
MINOR CONTOUR
LIMITS OF DISTURBANCE
EXISTING CONTOUR
CONSERVATION EASEMENT
BUFFER ENHANCEMENT AREA
BUFFER RESTORATION AREA
I DISTURBED AREA= 13.41 AC. I
EROSION CONTROL LEGEND
·111111111'
-5'-SF-SF-
SILT FENCE OUTLET
SILT FENCE
CONSTRUCTION ENTRANCE/EXIT
Know what's below. Call before you dig.
CONTRACTOR SHALL NOTIFY 'NC811" (811) OR (1-800-632-4949) AT
LEAST 3 FULL BUSINESS DAYS PRIOR TO BEGINNING CONSTRUCTION
OR EXCAVATION TO HAVE EXISTING UTILITIES LOCATED.
CONTRACTOR SHALL CONTACT ANY LOCAL UTILITIES THAT PROVIDE
THEIR OWN LOCATOR SERVICES INDEPENDENT OF "NC811".
REPORT ANY DISCREPANCIES TO THE ENGINEER IMMEDIATELY.
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GRAPHIC SCALE
0 20 40 80
1 inch= 40 ft.
II
MCADAMS
The John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293, C-187
www.mcadamsco.com
CLIENT
CLEARWATER MITIGATION SOLUTIONS
PHONE: [phone]
CLEARWATER JvlITIGA.110},1
SOLUTIONS'1
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REVISIONS
NO. DATE
PLAN INFORMATION
PROJECT NO. CLW-18000
FILENAME CLW18000-EC1
CHECKED BY RAS
DRAWN BY RAS
SCALE 1" = 40'
DATE 02.11. 2020
SHEET
EROSION CONTROL PLAN
AREA 1 8 1C6.03
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EXISTING TOP OF DAM = EL. 771.20
15" HDPE PIPES INVERT -EL. 769.25
12" HOPE PIPE INVERT -EL 769.00
1. CHANNEL DJf,.jENSIONS (2,0' DEEP, 4'.0 BOTTOM WIDTH) ARE TO TOP OF RIPRAP IN CHANNEL. ACTUALCHANNEL EXCAV.<\TION MUST CONSIDER THICKNESS OF THE RIPRAP AND FILTER FABRIC LINER.
2.A FILTER BLANKET IS TO BE INSTALLED BETWEEN THE RIPRAP AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST OF A MINIMUM 4" THICK L<\YER OF STONE (NCOOT #57) UNDERLAIN WITH MIRA.FlFILTER WEAVE 700 OR ENGINEER-/1.PPROVED EQUIVALENT WOVEN GEOTEXTILE FABRIC.
3. RIPR/>,P TO EXTEND TO TOP OF CHANNEL WITH 3:1 SIDE SLOPES THROUGHOUT THE EXTENT OFCHANNEL.
EXISTING GROUND
BYPASS CHANNEL DETAIL N.T.S.
TOP OF DAM TO BE LINED WITH #57 STONE J" THICK
BY::JASS CHANNEL TO BE LINED WITH NCDOT CLASS "I" RIFRAP, 22" THICKNESS A.ND LINED WITH FILTER FABRIC
OUTLET STRUCTURE PROFILE VIEW
N.T.S.
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1.A FILTER BLANKET IS TO BE INSTALLED BETWEEN THE RIPRA.!:! AND SOIL FOUNDATION. THE FILTER BLANKET WILL CONSIST OF A MINIMUM 4" THICK LAYER OF STONE (NCDOT #57) UNDERLA.IN WITH f,.jlRJ>.FI FILTER WEAVE 700 OR ENGINEER-APPROVED EQUIVALENT.
\ GRAPHIC SCALE
0 '10
1 i \= 10ft.
' \ \
PROPOSED 15" ADS FES �-\ INSTALLED TO MANUF,11,CTURER'S SPECIFICATl:JNS
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15"¢ ADS N-12� DUAL-WALLED HOPE ',
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PLAN VIEW
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' I \ < NCDOT CLA\S I RIPRAP, 22"�THICK \ TO BE LINED WITH GEO TEX Tl FABRIC OR ENGINEER-AP.PROVED EQUIVAOfNT WOVEN \ GEOTEXTILE F�RIC \ \
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PROPOSED 12" ADS FES INSTALLED TO MANUFACTUR':::R0 S SPECIFICATIONS \ 12�¢ ADS N-12 DU AL-WALLED HOPE '
______________.I 757 766 '} L
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769 --
OUTLET DISSIPATOR DETAIL
12" & 15" o ADS N-12 r DUAL-WALLED HDPE PIPES
PROFILE VIEW
'.S PRELIMINARY DRAWING -NOT RELEASED FOR CONSTRUCTION °"L..... _____________________________ _.__ ________________________________________________ __.
II
MCADAMS
The John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293, C-187
www.mcadamsco.com
CLIENT
CLEARWATER MITIGATION SOLUTIONS
PHONE: [phone]
CLEARWATER MIT/GA 'I1ON
SOLUTIONS&
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REVISIONS
NO. DATE
PLAN INFORMATION
PROJECT NO. CLW-18000
FILENAME CLW18000-Dl
CHECKED BY RAS
DRAWN BY RAS
SCALE AS NOTED
DATE 02.11.2020
SHEET
DETAILS
CS.00