Erosion and Sediment control checklist and calcs · OPW19/0098

T jobno: /(8BSSG
OD oe ca = = .
bu: GA

engineers & project managers calculation sheet date 21s g

 

project! GA GATEWAY DRIVE, NIOOSANILLE
subject: RUSLE CALCULATION

TOTAL CATCHMENT = 0.8730 ha
DISTURBED CATCHMENIT = ©. S730 he

ASSUPIEb Soll TEXTURE GROLP = TYPE F

R~ RAINFALL EROSINITY (R- FACTOR)
K = Soil ERODIBILITY FACTOR.

CS = LENGTH GEADIENT FACTOR,

C= COVER MANAGEMENT FACTOR.

P= CROSIOAA CONTTROU PRACTICE FACTOR
A

(f

ANACAL SOIL LOSS FROM EROSION (E/ha/y-)
Az IrRi.jA.| US|). [c | Pp

R= 164.74 (1.1177) 5 Stat

WHERE S = @ TEAR G HR STORM
> IF FoR NOOSAYILLE
= /6.G rete her

K= 6890

K= 0.0S8 — mediurt PLASTICITY CLAY ASSUMED

LS = 0.23 (GLoPe LENGTH 80% cave |-2/-)

c= | (wo cover)
P= (.3 (comPAcTeD AALD SMOOTH fe ConSTRUCTOY
PHASE )

A= GS9Ox 0.0SBx O.7S x! x (-3

=| lz t/ha/ge

ESTIMATES soit CoSS pocS NoT ExXcEED
[so C/ hed ye (ISCA. APPENDIX & PAGE 8.4)

RE COMMERD +

CREATION OF BASIA( USING EXCESS SPOIL ~e
I~ HIGH BLNB TO NORTHERN BooAMEY WITH
WEIR. AT NORTH EAST CORNER . aReST AT IL
4- WS eer. lOn~ UtiBG 4 BOO. pee,

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