20241120_Calculations_98-30

DIVERSION DITCH(V-SHAPED)SCHEDULE
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MARTIN MARIETTA MATERIALS,Inc
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M03 190 MOO x 230 1975 050 0m036 OS] 6]9 1611 TWFme IN8 2
TDX4 120 6. x 1. IW 047 04% ON 119 191 3.[6 TWF- 9M 35
M. IW ON x I.M I. 047 Om0.]S 0." 2.34 3.81 TWF- ]58 IS
TD/6 1.W 6A0 x 1m 3. 047 03% 0.]8 103 2N 3,16 TWFecm KO 13
TDX] 150 9. x ,- 6]3 049 OS% 0v 1.36 3.85 1050 iW Fass I" IS
TD810 1.75 600 x I S. 047 09fiI3v 1.96 4,10 58] TO Pane $m 2.5
moll 2M MOO x IN 12W 049 12% 0M 1. 60B 1291 TO F- 4M 1
1DX12 1. 1200 x 2W 12W 049 06% lib 1.63 1133 1961 TO. 439 33
TDXI3 I25 fi0p x I. I00 047 OT% ON I.13 293 5.16 TO Faxm 225 13
MIR O" 90p x I50 6.75 049 03% 0.10 1.21 OTI 649 TO Pmm 439 IS
WX15 0.50 9. x I50 673 049 06% 5.5 0.I7 1.65 II] IIW TO Pane 635 4
TD016 0.10 900 x 150 693 049 33% 5.5 003 3.91 023 X36 TWPane 12l 4
M017 025 9W x 150 675 040 OM 55 ON 0,91 059 SH TO Perm 335 05
TDXIS 0.10 1" x 1.SO 673 049 0.M 5.5 0.03 In O33 MIT TO Pane 142 1
MCI 0.W 9Jn x 150 673 041 0.3% 5.3 0,17 1M LIT 8.33 TWPane TV 13
TOX20 08 900 x l.Sl 6J5 Oi9 Oi% 55 009 134 059 941 TO Feacve 356 I3
TDY21 0Is ON x 150 675 049 0.m 5.5 005 193 033 13.05 TO F-- 1. 13
TDX23 0.10 9C0 x ISO 613 049 OM 55 003 OJ6 013 5.13 TO F. I76 033
MX23 0.98 9W x ISO 673 049 0.3% 5.5 031 Lit 2.11 731 TO F. 14. 4
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Mxt VelOclly Vmai+Qm¢/A Vmu+ $2N 69 Vpwt=2]Nam»>V Vp=1 6 Naee OK
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Pa[Vel%ily Vp=(j1Vq V = 036 Va0ow+55 Na2»>
NMrctt pVWeloxcWity bflan VQmmsue+=Q(IAu9cAlRAm 8�ny(v) - > V
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Vm = 0. V-,=.gw-» Thnelorc
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mxa
pak vaktily --(Q A v 19a vWaw=SS Nua»> vp=l Nsu
M¢V.x4 Fbw Qmu+(Ii9ARav9�vylv) =39c4»>CT-29 cG Il OK
Mme VeOsvy Vmx=Q:vm./A Vmr[= 1.$9 mix+IlMee»>V =Iflgs OK
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Po We T Vp+QYA V 0'IB Vvlkw=I.S Nem»> Vp=OBNas
SAme Nbwade Fbw Qpu+(Ii9ARmS�ny(v) = 2.81 Qmu=19c(a»>Q,=244 TMe(me
Mix V.I., Vmm.+Qwxe/A Vau= 0.91 Ymax=l Nac»>V =08Nx OX
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iNx AlbuxFN Fkw Qme+(1.49A0.va5'vl%n) 1.16 Qmu=32W»> Q =2L cG TMefae
Ma Vtlmiry Vvw=QmulA V.. 1.05 Vv -Ll Nzc»>V -0.W- OK
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Pak VeYsM Vp• 'A V +Om VWow+53Mc»> Vp=0,9 Naa
Mao Albwbb FWw Qma+(149ARL3912}Tv) = IO SO Qmu=106afi»>Qp=59cfi lbaerm
OK
AW<Ve1xM Vmae+Qmax/A Vmax+ 1.55 Vmax=16 Nas>»V =09Naa OK _
mmn
Pnk V.b q Vp+QpA V- 137 Valbv=SSNmc»> Vp=14 Nxc
Mex Nbwebb FMw Qmex+(Ii9ARY391/23gv) ax= 58] Qmn=59W»a Qf=4.I e6 Ihxnu�e
pyx Ve l VptteQmax,/A Vmex+ 196 Vmaa+lNax»>V =14Nµc [lK
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M¢Nlowhbtivw Qmm+(LOAR-Sll v) 1961 Q/ma=19.7eh»>Qp+ITbeh I'Iere6uc
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8L Albfmbkflow Qmv+(149AR�^Smy(n) 11.08 Qmax=IIIeL»a Qpel2efi TMe6e
Mu.Vtlmry Vms<=Qvaa/A Vmq+ 1.61 mca=1]Naa»>V +02Nvs OK

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Mav AlbwSkFlw Qmn•11<9AR»S"')Yol 911 Qma<=95 Wa» �=ObW 'll>xfu<
AL.VeNSOy Vmu.-Qma<IA Vqt<• 139 Vms[-IIOpe[N>V•U1Na OK
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ALawWwbleFlm Q—v (119AR»9��qo) 5.13 Q -51 e6>» Qp=03v 'IMe6e
M¢w" Vmrc.Q A Vmu• 0)6 Vmu=OSEI V-a INc OK
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Pak Veke% Vp•QpIA V O31 Vo11ow=55Mu»> Vp•09Nuc
Mac AYewbkFbw Qmu•(I A9AR»S-A.) • 751 Q %-)6c —Qp-2,2f ltveore
M VeleNy Vmu-Qm A Vmu- 1.11 vw-ISNue»>v=OtO OK

t
Site Name: Wilson Quarry
Date November 19,2007
Runoff Coefficient: C= 0.3 (Table 8.03A-Sandy Soil w/no crop)
Average Rainfall Intensity:25 year i= 9.0 in/hr (Fig.8.03d,Raleigh-25 Yr.-5 Min.Duraiion)
Average Rainfall Intensity:10 year i- 7.8 in1hr (Fig.8.03d,Raleigh-10 Yr.-5 Min.Duration)
Average Rainfall Intensity:2 year i= 5.5 in/hr (Fig.8.03d,Raleigh-2 Yr.-5 Min.Duration)
Sediment Storage Volume= 1,800 Cubic R/Acre
Typo of soil in the area(SandIsilt)or(clay) Sandy
Trap# Disturbed Amen Dminagp Arca Sediment Q pcaL IF-Q peak Surface Area Length to Top Top Height Weir
(Acres) (Acres) Storage-ft' 1 car (l0�year)feet' Width Ratio Length Width Dimension
SB A 1.00 1.00 1900 2.4 2.3 1019 2 46 23 4.0 4
SB B 1.50 1.50 2700 3.6 3.5 1529 2 56 28 4.0 6
SB C 2.00 2.00 3600 4.8 4.7 2039 2 64 32 4.0 6
SB D 2.50 2.50 4500 6.0 5.9 2548 2 72 36 4.0 8
SB E 3.00 3.00 5400 7.2 7.0 3058 2 80 40 4.0 8
SB F 3.50 3.50 6300 8.4 8.2 3568 2 150 25 4.0 10
SB G 4.00 4.00 7200 9.6 9.4 4077 2 92 46 4.0 10
SB H 4.50 4.50 8100 10.8 10.5 4587 2 185 25 4.0 12
SB 1 5.00 5.00 9000 12.0 11.7 5097 2 102 51 4.0 12
SB J 0.10 0.10 180 0.2 0.2 102 2 16 8 4.0 4
SB K 0.25 0.25 450 0.6 0.6 255 2 24 12 4.0 4
SB 1 1.50 1.50 2700 3.6 3.5 1529 2 38 19 4.0 6
SB 8 1.30 1.30 2340 3.1 3.0 1325 3 36 11 4.0 6

DIVERSION DITCH(V-SHAPED)SCHEDULE
MARTIN MARIETTA MATERIAL$Inc
W son URET
Dimh Doom, Diul Size GoaS U.I HYd is Slope Vain, Vp V.. Qp(c.9.) Qmu LwN 14aphof Dinh
No. Aae A ) P(R)xd'(R) Ama(RS) R .R) 61 (Nac) W. Nac) c.G.) a4. S N
TDM 1.60 9.00 1x 1.50 6]5 1 049 1.0.6 SS 0.30 2.12 3.4o Illl Ta)1 Feaoe 308
Mg 4.0 9.00 1 x 1 1.50 6.93 049 1 OA% 1 5.5 1 1.26 1.36 8.50 9.V Tdl Fescue SSO
NME
Qy-Puk Lew Gmlm 10-ryrawm Mmeiep�Ceemuml'.n-0 W(pi4,a.OSC-CkmU WYN)
Valew-Mm WanWla Nairy W�m4Pmmnm.W�aJ34
Mieimum Cmm mama em.le
T-TepwiGWa(Awam PW
tr-IXp2a(Gwam[XIeB
V-Q/A Q-(149AR"S1'V(n)
PcJ:Velocdy Vp-WA V - 050 Vullvw-5.5 Nuv» Vp-LLL Nuc
Mu AlkwvOk Flow Qmn=(1.49AR"S'"y(L) - 1431 Omu-144 ca>— Qp^3.4 cfs TScmfom
mm Velmiy V.-Qm A Vmax- 3.12 Vmu-22Mze —V =U6Nsc< OK
PeLY Vdairy Vp-WA V . 126 Vallow 5.5 Nscc»> VP"1.3 Nuc
Ma All Ak Flow Qmaa-(1.49AR"S"pin) 9V omav-92 cfz»> Qp-tl.5 cfz n=fom
M.Vclmin, Vm¢-Qm A V.- 1 13Nscc OK

SEDIMENT TRAP DESIGN-DESIGN CALCULATIONS
Sediment Trap No. RD 1 Se—ifiment Trap o.
Drainage Area a= 7.73 Acres Drainage Area a= 16.50 Acres
Disturbed Area 7.73 Acres Disturbed Area 6.05 Acres
RunoffCoef. c= 0.3 RumoffCoef. c= 0.3
Avg.Rainfall Intensity ilo= 7.8 in/hr Mg.Rainfaillnuccuity ilo= 7.8 i /hr
Avg.Rainfall Intensity iu= 8.0 hVhr Avg.Rainfall Intensity hs= 8.0 in/hr
Q10=ci,oa (from flow talcs.) 31.5 cfs 10=cilaa (fromflowcalm.) 67.3 cfs
Q25=circa (fromflowcalcs.) 33.9 cfs Q25=62ca (from flow talcs.) 72.3 cfs
Required Volume 3600 cubic Wacrel 27,828 Cubic Ft Reunited Volume 3600 cubic fl/acre 59,400 Cubic Ft
Weir Dimensions Weir Dimensions
50.00 (NCPSCPDM) 100.00 (NCESCPDh)
(top width to bottom width of weir) top width to bottom width of weir)
Reunited Surface Am Reatured Surface Area
(Q10e.01'43560) 13740.0 fee,° (Q10•.O1•43560) 23325.0 feet°
Dimensions: imensions:
lop length twice to width 175 0 len hvice top width 250