NCD980602163_20010705_Roadside PCB Spill (Warren County PCB Landfill)_FRBCERCLA LTRA_Erosion Control and Site Details-OCR

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I INSTALL ROO< CHECK DAM I SEE DETAIL SHEET ;I
JNSTAU. ROCK CHECJ< DAM !IEE OET All SHEET
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OP(N-OJT AND
REST(R{ PA.VEl,lo,'T
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CONSTRUCTION LIMITS
GENERAL CONSTRUCTION NOTES:
1. ALL CONSTRUCTION SHALL CONFORM TO THE CURRENT CONSTRUCTION ORAWINGS BY
BFA ENVIRONMENTAL CONSULTANTS STANDARD DETAILS AND SPECIFICATIONS.
ENTITLED WARREN COUNTY PCB LANDFILL DETOXIFICATION PROJECT
2. THE CONTRACTOR SH-'LL LOCATE ALL UTILITIES PRIOR TO COMMENCEMENT OF
GRADING ACTIVITIES. CONTACT ULOCO AT 1-800-632-4949 FOR FIELD
LOCATION OF UNDERGROUND UTILITIES.
3. UNLESS OTHERWISE NOTED ALL PROPOSED SPOT ELEVATIONS ARE TOP OF
ASPHALT OR FINISHED SURFACE.
4. SEED ALL AREAS DISTURBED BY CONSTRUCTION, AND NOT INDICATED TO BE
P-'VED OR PLANTED. UPON COMPLETION OF GRADING ACTIVITIES. USE REBEL 3
FESCUE IN ACCORD-'NCE WITH SEEDING SCHEDULE ON DETAIL SHEET 3.
5. WATER MAINS SHALL HAVE A MINIMUM 4' OF COVER.
6. THE TOPOGRAPHY SHOWN WAS FIELD LOCATED BY THIS FIRM.
7. THE CONTRACTOR IS RESPONSIBLE FOR INSURING POSITIVE DRAINAGE TO ALL SEDIMENT STRUCTURES.
8. SEE SHEET 3 FOR SEDIMENTATION AND EROSION CONTROL DETAILS
CONSTRUCTION S£0UQICE
1. OBTAIN GRADING/[ROSION CONTROL Pt.AN APPIIOVAL FROM NCOENR. LAND
QUALITY SECTION.
2. SET UP AN ON-SITE PRECONSTRUCTION CONF"ERENCE WJ1H THE EROSION
CONTROL INSPECTOR TO DISCUSS EROSION CONTROL MEASURES.
J. INSTALL ROCK CHECK DAM, SILT FENCE. INLET PROTECllON, SEDIMENT BASINS. AND
DIVERSION DITCHES AS SHOWN ON Pt.ANS. CLEARING ONLY AS NECESSARY TO INSTALL
THESE DE"1CES.
4. CALL 571-4700 FOR AN ON-SITE INSPECTION BY THE EROSION CONTROL INSPECTOR.
WHEN APPRO'IED, EROSION COll1ROl INSPECTOR ISSUES THE GRADING PERMIT. BEGIN
CLEARING AND GRUBBING ONLY AS NECESSARY TO INSTALL THESE OE'<lCES.
5. BEGIN GRADING ANO INSTAU.ATION Of" S10RM DRAINAGE PER THE APPRO=
PLAN. UPON INSTAU.ATION OF EACH STRUCTURE. INSTALL SPECIFIED EROSION
CONTROL MEASURES.
8. INSTALL REMAINING SITE IMPRO'IEIIENTS PER THE APPROVED PLAN.
7. MAINTAIN EROSION CONTROL MfASIJRES AS NEEOED.
8. ALL GRADED SLOPES MUST BE SEEDED AOO/OP. MULCHED 'MTHIN 15 WORKING
DAYS FOLLOWING COMPL.E110N OF ANY PHASE OF GRADING. PERMANENT GROUND
COIIER SHALL BE PR0"1DED FOR ALL DISTURBED AREAS WITHIN 15 WORKING DAYS
OR 90 CAID/DAR DAYS (WHICHEVER IS SHORTER) FOLLOWING COMPLETION OF
CONSTRUCTION.
9. STAB1UZE SllE AS AREAS ARE BROUGHT TO FINISHED GRADE.
1 O. ALL EROSION CONTROL MEASURES SHALL BE CONSTRUCTED IN ACCORDANCE
WJ1H THE N.C. EROSION Al¥J SEDIMENT CONTROL PLANNING ANO DESIGN MANUAL.
U.S. DEPARTMENT OF AGRICULTURE. AND U.S. SOIL CONSERVATION SERIIICE.
11. THE CONTRACTOR SHALL DIUGENTL Y ANO CONTINUOUSLY MAINTAIN ALL EROSION
CONTROL DE"1CES AND STRUCTURES TO MIN1MIZE EROSION. THE CONTRACTOR
SHALL MAINTAIN CLOSE CONTACT WITH lHE EROSION CONTROL INSPECTOR SO THAT
PERIODIC INSPECTIONS CAN BE PERFORMED AT APPIIOPRIATE STAGES OF
CONSTRUCTION.
12. UPON COMPLEllON OF THE WORK. SEED & STABIUZE, AS NECESSARY. THEN
CALL FOR A FINAL SllE INSPECTION.
13. MlEN 11£ SITE JS APPROVED BY THE INSPECTOR, REMOVE ALL TEMPORARY
SEDIMENTATION CONTROL MEASURES, THEN SEED OR PAVE RESULTING DISTURBED
AREAS.
INSTAU. ROCK CHECK DAM
SEE DETAIL SHEET f
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NC _G_RI.,ID■N■A•D-83 ___ _.;~ 0-----
INSTAll. ROCK CHECK DAM
SEE OET.iL SHEET J
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GRAPHIC SCALE
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( IN FEET )
1 Inch = 60 ft.
!PF
RBF
1Ror,J 1-,1,-_ir:: F·our-~D
RF:8.t\R r:ouND
MO~l'.J!JF:•il
SIG~'
PO\f<E "0 POL.':.
vVEL'
i:· -~ f'..! ,,..., ,-' '-' ''-·' -
,_ 1·· c: ·r _. -'
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I INSTAll ROCI( CHECK DAM '
1 SEE DETAIL SHEET J '
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SHEET 1 OF 3
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---1 '·'-. , . ' •, '-... -. ,><:
/~>
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RSION DITCH ( typ
:\ '''''''"'' _, ,i111111' -
. I I OJ.:!''\_ .. , , 1~L'5 V-• .. I I t·I I I I \ u ·/ · ;, \ ' -
0 .. ' 4' _C!:'-. ·\N ----9-•1 ·dT, _.-·;,. •' , __ .· --·--
™LLRIP R~
DISSAP!OR "'?Au . l
,,,,111111111+ _.,,,-,.----=
.,,,.----
PER DETAIL SHEET 3 CONSTRUCTION LIMITS
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GR~HIC SCALE1
• I
2D /40 !110 /
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RIP' RA 6' (w) x ri'(I) x 12"(d)
DITCH BOTTOM TO E 3' WIDE
SIQE SL PES SHALL B~ 2.5: 1
T LEVEL SPR ADER
20 FEET (i)F ITT:H
SEE DETAIL SHEET 3
L SPREADER
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160
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·-LJ 1 · ) ~--~----~
-..... ,. .... MU. (AC.)
U 11JTAL
0.21!1 0.20
2.2 2.2
( IN FEEY) --I inch =V 40 ft.
STORM DRAINAGE DESIGN TABLE
STORt,j ncr,,.oc, 10 'l'tAR .. -~-
O as) I'll"<: l)C.1, ~ 11• PYC Q,CJOI. RCf' O.OIZl u.~ uw
C SUI mTM. SA l£NQRII ■ aaP[ U.S Nt' D.& IHV ',ll.OC:tlY WV.
,.. t.8 1:1· .....11. 2 0 7.0-1-
o.J •• 4.8 16" t0 ,.o J,28.0 Jl5.6 ,.,
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SIL T'FENCE
-
,-. . ' I
SEDIMENT BASIN SCHEDULE
SEDIMENT BASIN 111 112
DENUDED AREA r oc. l 2.3 2.8
DRAINAGE AREA r ac. l 2.3 2.8
REQUIRED STORAGE 1800 a x DA 4.140 CF 5,040 er
MA:,1N "•E DIMENSIONS (l}x(wl 40 X 1:,· 40'x 20·
BASIN TOP DIMENSIONS (llx[w) 56"x 31 · ~n·x .'In '
BASIN DEPTH 4· 4·
STORArn, PROVIDED 4 672 CF 5,6.o.< e,r
WEIR WIDTH 5' MIN.
WEIR LENGTH 10' MIN
010 0.5 x DRAIN AREA x 7.22 8.3 CFS
F"OR SEDIMENT BASINS #1 ANO #2.
USE GRAVEL AND RIP R ... P FILTER BASIN OTL SHT.3
PLACE DIVERSION DITCH PER DTL SHT 3
PLACE SILT FENCE PER DTL. SHT 3
5' MIN
10' MIN
10.1 CFS
PLACE GRAVEL CONSl\JCTJON ENTRANCE PER DTL SHT 3
WEIR LENGTH CALCS.
Q= CLHU L-Q/CHUI , ..
BASIN #1 L = B.3/2.9(1) B 2.9 USE 10' "IN
BASIN #2 L • 10.1/2.9(1) • 3.5 USE 10' "IN
RIP RAP DISSIPATOR CHART
STRUCTURE SIZE d50 STONE
No. (lxwxd) SIZE
FES 1 1Q'x s·x 12"' R"
FES 4 60x 6x 12 s·
PER NYDOT OISSIPATOR CHART
~ RIP RAP OISSAPATOR PAD SEE DTIL SHT 3
TOTAL DENUDED AREA
= 7.66 ACRES
l0PSCIL SlOQC PU NOlES
1. STOOC Pk.£ TOP SOIL IN All£A SHO'Mi, f'ME OF ROO'IS, IN A
MANNER SIJC>i 1"A T THE SIDE SI.OPES 00 NOT EXCEED 2: 1 51...0PL UPON COl,Pl.£TION CK GRACING ACTI\/'llES
RED1S?R1BU1ED TOPStlL TO A ..,.,..._..
<:E e• DEPTH O'G 1H£ GRM)Q) .tJIEAS.. STABUZ£ SITT.
SOIL & EROSION CONTROL LEGEt-.D
__ ,_ __ TEIFORNl:Y SILT FDIC£
--w --TREE PR01EC'IQII flkCf.
I I I I , I I I ~ LJl,llS
.........
a
0
JJl'wtlfSIOrl 0001
'-------------------------·---•
CQNSJRUCJJW S[Q LENG£
I. OOTAl-4 CRAOING~ C.ONTIK,i. PLAN APPROVAL FFt()M ~. ·.~I#[;
01.JAUTV SECTION.
Z. SET UJ,, AA ~-SITE ~~TIQN cc».~lr::E 1111r~ Tl-!E v'QS,~;
XIHlROL lNSPECTOR TC DISCUSS EROSIQc COWR:Q. 14EA'iUP£'i.
3 1..-S.U.Li. RO()( Oi[CJ( DAW. SILT ft.Itta:, 1Hl.£T PRCTEC"JtC,1, ~\It.Ml tl~•I!., .•~::.
Q'rER'S1Qri DITOiES ,.S SHOWN C-. Pl..»4S, Cll>.MNt; c»-11.f ~ NECE'SSAfH T') rJ.i~!A..L
THESE ~CE5
4. CAL.:.. !'171-4700 F"cit AA ON-SIT[ l~C'T\Oh BY Th£ EFIOSION CCfiTJlt'.)L Ut9£:"_--,QP_
llttO.. APPRO\IEO, £ROSION CO:lllitCl. 'NSKCTOR !'SSLIES 1}(f r.1'ADINC PEPM'.,. a!,.<JIJ
a.EAAINC AND GRIJBBING Qt,11. Y AS NECESSARY TO !NSTALi... ThES( !'x:'ACH•
5-BEGIN CftAO&NC AND INSTALLATION \# STCftM 0A.AJNJ..G£ PEP '1-!E AP'P'.<'OIJE/.: Pl.AH ;JPQt,I INSTAU.ATICW OF EAOI STRUCTURE. •~STAil. SPEQAEO EROSc»I
CONmOL. MEASURE.S-
5. !NSTAU. AEMAJMING SllE MPR0"9'ENTS PER TH[ .-.PPR0'-1£.0 ;.,IJJ'rt
7. MAINTAIN EROSION CONTROL MEASUFIES AS NEIDEO.
&. All ~AOED st0P£S WUST BE S£E0ED N-40/CYil IIIULCHED MTHIN 15 illOFO(INC.
OA'l'S FOU.OWNG COMPt.£TION ~ ANY ?HI\SE OF GRAOIHI;. PER).IAHENT CROUI-.[; co~ SHALL 9[ PR0\1DED FOR AU. OISTIJRBEO AREAS WITHIN 15 WORK~G CAYS
OR 90 CAl£NDAR DAYS (WHIOi[VER IS SHORlER) FCl.LO'lllNG COMPL.£110"1 CT
CONSTRUCTION.
9. STABILIZE SITE AS AREAS ARE BROIJGttl TO ANISHED GRADE.
10. AU e:ROSICJtl CONTROL MEASURES SHAU. BE CONSlRUC1£0 tN ACCORDANCE
WITH THE N.C. EROSION ANO SEDtMENT CONTRQ.. PLANNING AND DESICH WANliAL.
1.J.S. otPARNENT Of AGRICULTURE. AND U.S. SOIL CONSERVA'l'I~ SER\1CE.
11. THE COHTRACTOR SHAU. DIUGENT1. Y AND C(JltrnNUOUSl. Y MAINTAIN Al.L EROSION
CONTROL 0EW:ES AHO STRUCl\JRES TO l&INIMlZE EROSION. THE CONTRACTOR
SHAU. MAINTAIN CLOSC OONTACT WITH lHE EROSION CONTROi.. INSPECTOR SO THA;
P£RIOOIC INSPECTIONS CAN BE PERF~MEO AT APPROPRl .... 1£ STAGES ~
CONSTRUCTION.
12. UPON COMPLE11a-t Of TiiE WORK. SEED • STMIUZE, AS NECESSARY. THEN
CAU.. FOR A ANAL SITE INSPECOON.
1J. 'M-£N TH£ SITE 15 APPROVED B'f TiiE INSPECTOR, REWO'wt ALL TEMPORAR"
SEDIMENTA110N COHlROL MEASURES, lHEN SEED at PAVE RESULTING DISTIJR8f0
AREAS.
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i'JCJTE-SEE SHEET 3 F<Jf! SEDIMENT1'TIO'l At,D EROSl>Jr
SHEET OF' .,,
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5 FT
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1600 CU F1 / ACRE
1 US[ FOR DRAINAGE AREAS
NOT EXCEEDING ') (f;VE) ACRES
2. [ART\-, BERM SHALL BE STABILIZED ,,./ S[EDING
ACCORDING TO TOWN SPECIFICATIONS.
CROSS S CTIO .
MAINTENANCE
Fil TER
FABRIC
INIP£CT lENPOIWtY SEmlENT JR»'$ N'lDI EACII PUIICI) Of" 9Nf1CNff IWNf"ML IOH1I£ !DllWtNT MG IES1'aE ~ 10 ITS CIIICIIW.
DMJrmlNS aEM 1t£ SEIIIENT HAI .t.OC:1..1&11..lED 10 N-IWI' lMt Ol9QN D1P1H aF 1HE l!IAP. PU.CE 1ME ....., 1MAT IS llfMDlfllD •
A talalAU ~ MU AND IIEP\.AIX 1l€ o»IT ....... 11D l'MT r, 1IC Gb.Wl. fAONa.
QCIX 1HIE: smJC'l\a FIii DAMAGE F1101i11 E1tOSON 0R ....0. l'£JICDCAU.Y Q£O( 1tlE OEPlH 0, 1ME SPLI.WAT Ya umJIIE ff 1$ A .....
CF I.It n mow 11E LOW IIOINT OF TI« we, ...... JWMEl)IA"l!l.Y ru. 1,M't IIEfflDEfT OF nc Oll'IIICIIIHT 1Q SUllffl.Y ~ DEml
C1RAOC. Mr _. RW Odl't.MD f1Dril M S'U.WA\' MUST K ll!PIMID IIM:DIA'IU't.
ff,a,a[ M ot1•MOUI"" NCI All. Ol!ffllllB) Allf.AS MOW H SEmml.T ,aa_ AND~ FW H...,. ....... 1ELY NlDI
cmamaJCIIGII ■1H SEEDNQ.
GRAVEL & RIP RAP FILTER BASIN
"MOG -A.ffACHm
vrntA POST .. lllllDl£ ..--10 POS11 Wl1tt LDCIG ..--HORIZONTAL METAL POST ..m ■CUIEI.Y 1D 'tfR1ICM. .....
BAFFLE INSTALLATION STEP l
.....
1, ORM. S'1m. nNC1C POST AT LEAST 1r lft10 SOLID.....,
2. MXD l'GIST5 Mf. NOT A012PT.-£
3. USl STAllllS 1' Ml'AAT 10 •TTlCH fAMC .,,..._.
IOTIQII Of BAFl'LE IN
11DCHNt01R!MOI
nw:D Viii SOIL AID _,.,
BAFFLE INSTALLATION
PERSPECTIVE VIEW
'..,,---TOP Of" IAFFLE 90.lD IE 1°
MIGIO 1HAM 1t£ IOTl'OM Of" ..,...,_,.y
STEP 2
GRAVEL & RIP RAP FILTER BASIN
AIIEAS TO a; IICS'TUMrD
(CUT. FU. ElC.)
~
DIEl5DIS AR£ ---""""""""""" """"
-"""" ...............
SECTION THRU BASIN, FILTER AND CULVERT PIPE
NO SCALE
,_ ......
O'O HOIIZONTAL ....
HCJIIZGNJA&. l"OIT
flMCE NtO f.W.: ........ _,
•• ,.. J'IIENOt,-
"""""' -,,.....,..
SECTION AT OPENING
9€£'1 2 OF 2
GRAWI. • M' RN' fLlEJI IIDIM BASIN OET .. l
IS OD1C1E> lQ PRIJUT Dl'S1lla f¥il: lhOlS
'!MAT C11A1N ID Ami Gt La&.
(EXISTING PIPE INVERTS)
GRAVEL & RIP RAP FILTER BERM BASIN
2• MIN
ST£EP CUT OR FILL SLOPE--~
2: 1 SLOPE (MAX)
CROSS SECTION
....
---..__ __ ST£EP CUT OR FILL SLOPE
NOl'E:
[ ~I STING
RQA.OWAY
r-BUl SUFFICIENT 10 KEEP
SEDIM[N T ON SI TE
r-J-SlONE TO BE USED
(SURGE STONE OR R.O.JLROAD
BALLAST)
PLAN
[XISllNG ROADWAY
J:llill.,;_
25' OR 'MOTH Of
PROPOSED STREET.
WHICHEVER IS
CR[A1£R
35' MIN.
1 PUT Sill FENCE OR TRH µRQT£CTION FENCE UP
10 E.NSURE CONSTRUCTION ENTRANCE JS US£0
2 IF CONSTRUCTION ON TH[ SIT[S AR[ SUCH THA 1
THE MUD IS NOT REMOVED 8'r' THE V[HICl.£ TRAvfl -
ING Qll[R THE SYON[. THEN THE TIRES OF THE
VEHICLES MUST BE WASHED BEFORE fNTERING Tl-!l
PUBLIC ROAD.
3 If A PROJECT CONTINUfS fO Puu MUD ANO D[BRIS
ON TO niE PUBUC ROAD. TH[ TQVrt,I 'MLL CLE AN THE
AREA AND INVOICE TME. FINol.NCIALL Y RESPONSIBLE
PE.RSON ,1,5 tNOICA TEO ON THE rlNANCIAl RESPC-5-
IBIUTY FORM.
15' MIN. NEW CONSTRUCTION ~
ABRtC UNDER STONE
CROSS SECTION
CONSTRUCTION ENTRANCE
BURY BOTIOM
OF PLYWOOD
UPSTREAM END Of
STORM DRAIN
AlL PARTIALLY COMPLETED STORM DRAINS
SHALL BE PROTEC1ED AT THE EtC> rE
I
'--------''-----3/4" EX'lt'.RIOR ____ __. ...
EACH DAY IN ACCORDANC( \l.llH lHESE
DETAILS. STEEL FENCE POST (TYP.)
WASHED STONE AL lER
ACROSS PIPE INLET
PIPE INLET PROTECTION
ctl'ICRE1l II.OOI CATOI 811$11111
CW.VNU£0 NAIIOWNE
Cl.01" W/1/'rcaci
PERSPECTIVE VIEW
Sflla«NT ffllWIIE ZC1NE (T01'M. BASIN CAPAaTI")
""""'.,_ ........
,.d
PlYWOOO
PLYWOOD INLET PROTECTION
UPSTREAM END Of ~
STORM DRAIN ~
O\IERfl.OW
• ' • i • ·-. .. . . . ... . . .,_. .... . ... .--. . . ..
1/3 PIPE
DIAMETER
STONE FILTER INLET PROTECTION
(PLYWOOD AND STONE)
1. A.T ENO (F Nt0,,£C'I, ClllOt IASN CAN
IE RAaD .l$ M£Elm PlJJOGINC 0Pb «ulE Of'" ll,.IDI: ■1" IIOl'IAIL
J. ... CM I[ -.r AS A STNCWID ..... -,.s:,,--::.-""' -.... HIUS)N ...._...,E
IJllJZID AS SUCH .... l"lla.£1' IS IT--.L
.S.fl' ...... _...IIOVEl:5ACMS no MS &nuen.: tGDS 10 1k l'llllfAl'ED AS A _. S1IIUC1lllE NIO JIii.i. IE.Am> ~'ftON NEEDS 10 lllt ..-,u». (TIWN RACK, D.CY,fl"IKJNS,
m:..)
IW.YAMZEO .....,_ a.o1N 1/r X 1/r' GRD
,_ """"" -
,__ 5 WA5MD S1UNl" Al.Till UID ~ HAIDWMIC c:unH (l : I MAX. SLOP£}
CllNI OUT PGltT (1/2 CIP"1M SBIMNT 5mtAGE ZOE)
SECTION VIEW
CATCH BASIN RISER/FILTER
--~~-
----Jr ~ ~Lo§ •
0
~~©--
GAL\1NIZED
HAROWARO WIRE
EXTENDS TO
TOP OF BOK
f 57 WASHED STONE PLACED TO A HEIGHT
OF 12"' -1 s• MIN. ABOVE Ta> OF BOX
,
-!DIS IOIE IIMECFU---. .,_1IIMIIWM1EIIH. l.flm #1. II IE: 't' 1114 & QDII.Y I.BIi£ "9 SPMD Ml
91:aMCM. ..... l5td
flMI a Ar £ADI BIi '6 LIEM 'IE PROIECIDI
AWA$,. #Cl At lflJNU mt' 1lt ECmJ 'lJJd O.C. N El&II.
RaMPIOEIIIIMEASLBStlWIW•PadJI.PlltG
NOU!S 1W1 .......... MEA. fflAOl 9CIIS--
'II Fml PIZ1S 11/lJ FAae.
. ,_
. -
f .
----i=-r--
' I I I
TR[[ l'IKITECOON /JO
00 NOT [NIER
~~ -
l'Offl MAY IE 4" M Plf.. r M K
tll USI/IISftll.
--/
V
/
IJWCl. UY il:!Zi'TAfjl
""' """-' """"' PQ. r 8A1111C4 f A1RC
IEA'IIOPIOJ 91)11 lS --
-~-~
NSfAIJ. 1IIEt f'IIOEID RIG Aa m1M1 ... RI CMllC Rlt lflW. QN-SlE
N9P£t'D IY • -tF !:MY Da l9fC'lllll. IIMl'Tllf llEE flllOEIOI RN1 'IRUilOlt IIIIIAICN IF PJIO£l.
MDDAL SIIICS MAY II[ IUdlD I\' arr CF 1ALm1 1B1EmDCS IIIPM11Eff
BASID IJt AClUAL Fl1D COIDfllCIG.
TREE PROTECTION FENCE DETAILS N.T.S.
YlRll&L AS 0IIECffD r, M DGMEBl
WE.
lllil 10 GA. --
-USE SL.l RM:(. ONLY MO DltAINA.Gl MEA
OCIE! NOT DCIID 1/4 ACRE Nm ~ IN
AIIElS r, OCN2NlRA.1B> now
FRONT VIEW
.. 'r ii
SIDE VIEW
ANCHOR SIQIIIT A$ CIAEe1ED .... ENalGR ..
F0R IE"Alt r7 SLT FENCE f AAJ.M£S, USE Mo. s1 •~m $TONI:
l'0A AHCtiOll .0. $1..T
FDIC£ 15 f'ROTEClw.G C.ltH IIAS~ .
STANDARD TEMPORARY SILT FENCE
---------
EXISTING SLOPE
CLASS 1
VAfllES
SIDE VIEW
EXISTING SLOPES
llifil;_
FILTEP F}.8RiC I
I
VARIES
KEY RIP RAP INTO THE DAM
FOR STABILIZATIOr,.
"' ,..
i
FRONT VIEW
LEVEL UP
Of" SPREADER
s·-r .•.
#57 WASHED STONE
CHECK DAM
TRANSITION TO
O GMl>E
STABILIZED
SLOPE
,_ _________ •. -----------1
6 .. MIN
STONE SEE CHART SHffi 2 PLAN YJEW
STANDARD CATCH BASIN/YARD INLET PROTECTION
L---------------------------------+-----------------------------------t--~---------------~---------------------,
~EVEL SPREADER DIVERSION DITCH
I , f i I /.
o, " "
:,; ·l,"11\J I I •~
,-_.,;,·,,"! w I ~, "
' I " l
' ~ •' I'! ./J ~11',
\! 1,1!', I 1l >' T" c
j
PL.AN
SEE CHART ON SHECT 2
Lo
SLOPE O % FLOW -
SECTION A-A
I
I
S£E APPROPRIATf SCHEDULE FOR DIMENSIONS Filter blanket
1. la is the length of the riprap apron.
2. d = t .5 times the maximum stone diameter but
not less than 6"
J. A filter blanket or filter fabric should be
installed between the riprop and soil foundotion
RIP RAP DISSIPATOR DETAIL
SEEDBED PREPARATION
1. Chisel compacted areas and spread topsoil 3 inchea deep over adverse soil
conditions, if ovoiloble.
2. Rip entire area to 6 Inches depth.
3. Remove oil loose rock, roots, and other Obstructions leaving surface
reasonobly smooth and uniform.
4. Apply ogriculturol lime, fertUlzer. and superphosphote uniformly and mix
with soll (see below•).
5. Continue tlllcigt until a well-pulverized, firm, recisonob!y uniform seedbed
ia i:irepored 4 to 6 inches deep.
6. Seed on a fTeshly prepared seedbed and cowr seed lightly with seeding
equlpmen t or cult Ipock ofter seeding.
7. Mulch immediately ofter seeding and anchor mulch.
8. Inspect oil seeded oreos and make necessary repairs or reseedings within the
plonting seoson, if possible. If stand should be over 60X damaged,
reestablish following orlginol llme, fert.Tiizer and seeding rotes .
9. Consult Conservation Inspector on maintenance treatment and fertilizotlon
ofter-permanent cover is established .
• Apply. Agricultural limestone - 2 tons/acre (l tons/ocre in cloy soils)
rertilizer -~.000 lbs./ocre -10-10-10
Superphosphote -500 lbs./ocre 20
Mulch - 2 tons/acre -small groin :tt~ly&ls
Anchor -Asphalt Emulslon O 300 gals/acre
SEEDING SCHEDULE
Shoulders Side Ditches Slooes (Mox 3· 1}
Qfil
Aug 15-No.., 1
Noll' 1-Mor t
Mer 1-Apr 15
Apr 15-Jun JO
Jul 1-Aug 15
S!oplfi (J· l to 2· 1)
Mor 1-J,.me 1
(Mer ' -.e..pr 15)
(ldor 1-Jun JO)
{lilor 1-..k.n JO)
Sep 1-Mor 1
(Moll' 1-Mor 1)
Il!'.E.
Toll Fescue
Toll Fescue
& Abruzzi Rye
Tell fescue
Hulled Commo,, Bermuda Grose
Toll Fe-scue ond
Browntop Milet
•nor Sorc;,um-Sudon !-!;,birds
Sericeo Lespedezo (scarified)
&
!gd_ Tell Feso.ie
~ Neeping Lo·.-eqraaa
~ Hulled Common
Bermudogrou
... Toll rncue gnsi
••• 8rowntop MIiiet
... !it Sorghum-Sudan H:,l)irris
Serica lespedezo
(unnulled-unscorified)
And Toll Fescue
Md A.bruzzl Rye
PLANTING RATE
120 lbs./ocre
120 1bs./ocre
25 lbs./ocr"'
120 lba./ocre
12 lba./ocre
60 lba./ocre
35 Iba. /o,;re
30 lbs./acre
50 ibs./ocre
60 lb11./acrr:.
5 :bfi./1n.re
8 lbfi./oO'e
60 lbs./r.icri:
3b lbs./nr..re
.'!iO lbs./r.ir.r~
70 lbs./oc.r"
50 lb:i./acre
25 !bs./ocre
Consult Consen,11Qtion Engineer or Soil Cori.ervotion s«vice for odditionol
information concerning other oltemoti..,.,a for vegetation of denuded ereas,
The above vegetotion rates ace those which do well under local conditions·
other seedin5] rote cornblnotiofls ore poasible. For o !own quality turf, •
double « triple rotes.
.... •••Icmeororv -Reseed occording to optimum s,t;oson for desired
permanent vegetation. 0o not allow Temporor1 cover to grow over 12•
in hei~t before mewlR9. otherwise fescue may be shoded out.
CONSJBUCTION SFAUfNCf
1. OBTAIN GRADING/EROSION CONTROL PLAN APPROVAL FROM -NCOENR LANO QU.a.UTY SECTION. '
2. SH UP AN ON-STE PRECONS1RUCTION CONFERENCE 'WITH 11-IE EROSION
CONTROL INSPECTOR TO OtSOJSS EROSICli CONTROL MEASURES.
3. INSTALL ROCK CHECK DAM, SIi.. T FENCE, INL£T PROTECTION SEDIMENT BASINS AND
Dl'vl:RSION DITCHES AS SH0\11!11 ON PLANS, CLEARING ONLY AS NEC€SSARY TO INSTALL THESE OEW,CES.
-4. CALL 571-4700 FOR AN ON-SITE INSPECTION BY THE EROSION CONTROL INSPECTOR 'MiEN APPROVED, EROSION CONlROI. INSPECTOR ISSUES THE GRADING PERt.ilT. BEGIN .
ClEA.RING AND GRUBBING ONLY AS NECESSARY TO INST AU. 1HESE DE'w1CES.
5. BEGIN GRADING AND INSTALLATION Of STORM DRAINAGE PER lliE APPRO\JED
Pl.AN. UPON IN$TAU..,\TION or [,i.Di SlRUCTURE, INSTALL SPECIFIED EROSION
CONTROL MEASURES.
6. INSTALL Rtl.lAINING SITE lMPROll£MENTS PER l'HE APPRQ"y£0 PLAN.
7. MAINTAIN EROSION CONTROL l,l[ASUR£S AS NEEDED.
8. All GRADED SLOPES MUST BE SEEDED AND /OR MULCHED v.tTHIN 15 WORKING
DA VS f"OUOWING COMPLETION Of ANY PHASE OF GRADING. PERMANENT GROUND
CO"vt:R SHALL BE PROIADED FOR All D!Sl\JRBED AREAS WITHIN 15 WORKING DAYS
OR 90 CALENDAR DAYS ('M4ICHEVER IS SHORTER) F(l.LOWING COMPL£TlON or CONSlRUCTlON.
9. STABRJZE SITE AS AR["-5 ARE BROUGHT TO FINISHED GRADE.
10. ALL EROSION CONTROL MEASURES SHAlL BE CONSlRUCTED IN ACCORDANCE
'Mlli TI-IE N.C. EROSION AND S£01t.iENT CONTROL PLANNING AND DESIGN MANUAL,
U.S. DEPARTMENT OF' AGRICUL TI.IRE. AND U.S. SOIL CONSERVATlON SERVICE.
11. THE CONTRACTOR SHALL DILIGENTLY ANO CONTINUOUSLY MAINTAIN AU EROSION
CONTROL DE'ACES ANO STRUCllJRES TO M!NIMIZE EROSION. THE CONTRACTOR
SHALL MAINTAIN CLOSE CONTACT ¥!Int THE EROSION CONTROL INSPECTOR SO THAT
PERIODIC INSPECTIONS C"N BE PERFOfU,i1£D AT .e..PPROPRIATE STAGES OF CONSTRUCTION.
12. UPON COMPLETION OF THE WORK, SEED Al: STABILIZE, AS NECESSARY. TI-IEN CAU. FOR A FINAL SITE INSPECTION.
, J. WHEN lHE snr IS APPROVED BY THE INSPECTOR, REMO\/[ ALL TEMPORARY
SEDIMENTATION CONTROL M[.e..&JR£S, TH£N SEED OR PAVE RESULTING DISTURBED AREAS.
SI-IEE'f 3 OF 3
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